US20030002859A1 - Method and circuit for data transmission - Google Patents
Method and circuit for data transmission Download PDFInfo
- Publication number
- US20030002859A1 US20030002859A1 US10/173,144 US17314402A US2003002859A1 US 20030002859 A1 US20030002859 A1 US 20030002859A1 US 17314402 A US17314402 A US 17314402A US 2003002859 A1 US2003002859 A1 US 2003002859A1
- Authority
- US
- United States
- Prior art keywords
- data
- encoded data
- transmission medium
- encoded
- transcoded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/24—Systems for the transmission of television signals using pulse code modulation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/04—Time compression or expansion
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00007—Time or data compression or expansion
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4344—Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
Definitions
- the present invention relates to the field of signal transmission and decoding systems, and in particular to apparatus and method for transmitting data from a DVD player to a DVD decoder.
- DVD players provide a digital output from which electrical or optical signals may be picked up.
- An audio decoder such as a Dolby Digital, DTS, MPEG, or MLP decoder may be connected to the output of a DVD player.
- Unencoded pulse code modulation (PCM) stereo audio data based on the IEC 60958 standard, or encoded multichannel audio data based on the IEC 61937 standard, is sent to the decoder from the digital output of a DVD player.
- parameter settings e.g., headers
- the data stream to be transmitted is biphase-coded and coupled to the sampling rate.
- the decoder i.e., the data sink
- the decoder is thus able to synchronize itself and reconstruct the original sampling rate of the data source, which for a DVD player, for example, is 48 KHz.
- a Media Oriented System Transport or Media Oriented Synchronous Transfer is a multimedia network developed for use in a motor vehicle.
- a fundamental feature of a MOST network is the fact that the applications layer is separate from the network layer.
- MOST networks also work on the basis of biphase-coded data. Data are typically transmitted at a sampling rate of 44.1 KHz.
- MOST Media Oriented System Transport
- a problem is that data from a data source such as a DVD player, has a first sample rate f 1 , that is not compatible with a multimedia transmission medium that employs a second sample rate f 2 , and across which data is transmitted from the data source to a data sink, such as a DVD decoder.
- a signal transmission and decoding system includes a data source that transmits first encoded data over a first transmission medium.
- a first transcoder receives the first encoded data via the first transmission medium, and transcodes the first encoded data to provide transcoded encoded data that is transmitted over a second transmission medium.
- a second transcoder that receives the transcoded encoded data via the second transmission medium, and transcodes the transcoded encoded data to provide second encoded data that is transmitted over a third transmission medium.
- a data sink that receives the second encoded data via the third transmission medium, and decodes the second encoded data to provide decoded data.
- the data source includes a DVD player
- the data sink includes a DVD decoder
- the second transmission medium comprises a MOST bus.
- a method of transmitting data from a DVD player to a DVD decoder includes transmitting encoded data from the DVD player over a first transmission medium, and receiving the encoded data and transcoding the received encoded data to provide transcoded encoded data.
- the transcoded encoded data is transmitted over a second transmission medium, and then received and transcoded to provide received encoded DVD data.
- the received encoded DVD data is then transmitted over a third transmission medium to the DVD decoder.
- the signals of standard IEC 61937 supplied by the DVD player are transmitted to a first transcoder that analyzes the data stream received from the DVD player and determines the sampling rate.
- the first transcoder adjusts the sampling rate to that of the standard used by the multimedia network by changing the length of the pause packets contained in the data stream. If, for example, the sampling rate of the DVD player at 48 KHz is greater than the 44.1 KHz sampling rate required by the standard of the multimedia network, the first transcoder deletes a predetermined number of zeroes in the pause packets.
- a phase-locked loop is provided in the first transcoder that converts the frequency of the biphase signal provided by the DVD player from 48 KHz to 44.1 KHz.
- the data stream generated by the first transcoder is transmitted through a multimedia network line to a second transcoder which, based on the parameters contained in the data stream received by the first transcoder, reproduces the data stream generated by the DVD player.
- transmission of data from the DVD player to the first transcoder and from the second transcoder to the DVD decoder is performed according to standard IEC 61937.
- unassigned bits are present which, in one embodiment of the invention are used to provide control commands.
- the unassigned bits indicate, for example, how many zeroes must be deleted from the data stream or added to the data stream.
- FIGURE is a block diagram illustration of a signal transmission and decoding system.
- the FIGURE is a block diagram illustration of a signal transmission and decoding system 10 .
- the system 10 includes a data source 12 that provides a signal on a line 14 to a first transcoder 16 .
- the first transcoder 16 provides a signal on a line 18 (e.g., a multimedia network line such as a MOST bus) to a second transcoder 20 , which provides a signal on a line 22 to a data sink 24 .
- a line 18 e.g., a multimedia network line such as a MOST bus
- the present invention shall be discussed in the context of an embodiment wherein the data source is a DVD player, and the data sink is a DVD decoder.
- the DVD decoder 24 may, for example, be a Dolby Digital decoder, a dts decoder, an MPEG decoder, an MLP decoder, or another multichannel audio decoder.
- the invention is of course not limited to systems wherein the data source is a DVD player, and the data sink is a DVD decoder.
- the first transcoder 16 receives the signal on the line 14 , and converts the sampling rate of the received signal to the sampling rate compatible with/required by the line 18 . Depending on whether the sampling rate of the DVD player 12 is greater than or less than the sampling rate for the transmission of data over the multimedia network 18 , the first transcoder 16 removes zeroes from the pause packets or adds zeroes to them. Certain parameters are contained in the data stream that the first transcoder 16 transfers through the multimedia network 18 to the second transcoder 20 . Using these parameters and the data received over the multimedia network 18 , the second transcoder 20 recreates the signal originally transmitted by the DVD player 12 . The second transcoder 20 transmits the recreated signal to the DVD decoder 25 over the line 22 , which may be configured and arranged according to standard IEC 61937.
- the signal transmission and decoding system 10 may be located in a motor vehicle.
- the DVD player 12 may be connected, for example, through a MOST network to the DVD decoder 24 .
- the multimedia network 18 may be configured and arranged for example as a MOST network.
- the signal transmission and decoding system 10 may be employed in a motor vehicle, such as an automobile.
- the present invention is distinguished from techniques wherein the encoded data stream is decoded at the data source (e.g., the DVD player), and then transmitted in multichannel mode as linear PCM data through for example a MOST network.
- the data source e.g., the DVD player
- this technique requires a bus bandwidth that is three to four times greater than the bus bandwidth required by the system of the present invention.
- the PCM data would have to be re-encoded once again for copyright reasons since decoded Dolby or dts data may not be transmitted in an open system. Therefore, when compared to known methods and systems, the present invention is distinguished by significantly less technical complexity despite the requirement of two transcoders.
Abstract
The sampling rate of the optical and electrical signals provided by a DVD player according to standard IEC 61937 are converted in a first transcoder to the sampling rate of a multimedia network. The signals generated by the first transcoder with the sampling rate of the multimedia network are transmitted through a multimedia network line to a second transcoder, which based on the parameters contained in the signals received generates the signal originally generated by the DVD player and transmits it according to standard IEC 61937 to a DVD decoder. The technique is specifically suited for use in a motor vehicle and is distinguished by low technical complexity since without the transcoding by the two transcoders the encoded data stream at the output of the DVD player would have to be first decoded and then transmitted in multichannel mode as linear PCM data through a multimedia network line, for example, a MOST line. This approach, however, requires three to four times the bandwidth. In addition, the PCM data would have to be re-encoded for copyright reasons.
Description
- The present invention relates to the field of signal transmission and decoding systems, and in particular to apparatus and method for transmitting data from a DVD player to a DVD decoder.
- DVD players provide a digital output from which electrical or optical signals may be picked up. An audio decoder such as a Dolby Digital, DTS, MPEG, or MLP decoder may be connected to the output of a DVD player. Unencoded pulse code modulation (PCM) stereo audio data based on the IEC 60958 standard, or encoded multichannel audio data based on the IEC 61937 standard, is sent to the decoder from the digital output of a DVD player. In addition to the audio data, parameter settings (e.g., headers) for the decoder such as for example the sampling rate of the original data source may also be contained in the transmitted data stream. The data stream to be transmitted is biphase-coded and coupled to the sampling rate. The decoder (i.e., the data sink) is thus able to synchronize itself and reconstruct the original sampling rate of the data source, which for a DVD player, for example, is 48 KHz.
- A Media Oriented System Transport or Media Oriented Synchronous Transfer (MOST) is a multimedia network developed for use in a motor vehicle. A fundamental feature of a MOST network is the fact that the applications layer is separate from the network layer. MOST networks also work on the basis of biphase-coded data. Data are typically transmitted at a sampling rate of 44.1 KHz.
- Additional information on MOST networks is disclosed in the publication entitled “No Standard without Digitalization”,Automobil-Entwicklung, May 2000, pages 88-90, and in the publication entitled “Media Oriented System Transport (MOST), Standard for Multimedia Networking in Motor Vehicles” VDI Berichte, no. 1415, 1998, pages 819-834.
- A problem is that data from a data source such as a DVD player, has a first sample rate f1, that is not compatible with a multimedia transmission medium that employs a second sample rate f2, and across which data is transmitted from the data source to a data sink, such as a DVD decoder.
- Therefore, there is a need for a technique for transmitting data from a data source such as a DVD player to a data sink such as a DVD decoder, via a multimedia network line, such as a MOST network, at a frequency that differs from that of the data from the data source.
- Briefly, according to an aspect of the invention, a signal transmission and decoding system includes a data source that transmits first encoded data over a first transmission medium. A first transcoder receives the first encoded data via the first transmission medium, and transcodes the first encoded data to provide transcoded encoded data that is transmitted over a second transmission medium. A second transcoder that receives the transcoded encoded data via the second transmission medium, and transcodes the transcoded encoded data to provide second encoded data that is transmitted over a third transmission medium. A data sink that receives the second encoded data via the third transmission medium, and decodes the second encoded data to provide decoded data.
- In a preferred embodiment, the data source includes a DVD player, the data sink includes a DVD decoder, and the second transmission medium comprises a MOST bus.
- According to another aspect of the invention, a method of transmitting data from a DVD player to a DVD decoder includes transmitting encoded data from the DVD player over a first transmission medium, and receiving the encoded data and transcoding the received encoded data to provide transcoded encoded data. The transcoded encoded data is transmitted over a second transmission medium, and then received and transcoded to provide received encoded DVD data. The received encoded DVD data is then transmitted over a third transmission medium to the DVD decoder.
- In one embodiment, the signals of standard IEC 61937 supplied by the DVD player are transmitted to a first transcoder that analyzes the data stream received from the DVD player and determines the sampling rate. The first transcoder adjusts the sampling rate to that of the standard used by the multimedia network by changing the length of the pause packets contained in the data stream. If, for example, the sampling rate of the DVD player at 48 KHz is greater than the 44.1 KHz sampling rate required by the standard of the multimedia network, the first transcoder deletes a predetermined number of zeroes in the pause packets. To achieve this, for example, a phase-locked loop is provided in the first transcoder that converts the frequency of the biphase signal provided by the DVD player from 48 KHz to 44.1 KHz. The data stream generated by the first transcoder is transmitted through a multimedia network line to a second transcoder which, based on the parameters contained in the data stream received by the first transcoder, reproduces the data stream generated by the DVD player. In one embodiment, transmission of data from the DVD player to the first transcoder and from the second transcoder to the DVD decoder is performed according to standard IEC 61937.
- In a data stream based on standard IEC 61937, unassigned bits are present which, in one embodiment of the invention are used to provide control commands. The unassigned bits indicate, for example, how many zeroes must be deleted from the data stream or added to the data stream.
- These and other objects, features and advantages of the present invention will become more apparent in light of the following detailed description of preferred embodiments thereof, as illustrated in the accompanying drawings.
- The FIGURE is a block diagram illustration of a signal transmission and decoding system.
- The FIGURE is a block diagram illustration of a signal transmission and
decoding system 10. Thesystem 10 includes adata source 12 that provides a signal on aline 14 to afirst transcoder 16. Thefirst transcoder 16 provides a signal on a line 18 (e.g., a multimedia network line such as a MOST bus) to asecond transcoder 20, which provides a signal on aline 22 to adata sink 24. - The present invention shall be discussed in the context of an embodiment wherein the data source is a DVD player, and the data sink is a DVD decoder. The
DVD decoder 24 may, for example, be a Dolby Digital decoder, a dts decoder, an MPEG decoder, an MLP decoder, or another multichannel audio decoder. However, the invention is of course not limited to systems wherein the data source is a DVD player, and the data sink is a DVD decoder. - The
first transcoder 16 receives the signal on theline 14, and converts the sampling rate of the received signal to the sampling rate compatible with/required by theline 18. Depending on whether the sampling rate of theDVD player 12 is greater than or less than the sampling rate for the transmission of data over themultimedia network 18, thefirst transcoder 16 removes zeroes from the pause packets or adds zeroes to them. Certain parameters are contained in the data stream that thefirst transcoder 16 transfers through themultimedia network 18 to thesecond transcoder 20. Using these parameters and the data received over themultimedia network 18, thesecond transcoder 20 recreates the signal originally transmitted by theDVD player 12. Thesecond transcoder 20 transmits the recreated signal to the DVD decoder 25 over theline 22, which may be configured and arranged according to standard IEC 61937. - The signal transmission and
decoding system 10 may be located in a motor vehicle. For example, theDVD player 12 may be connected, for example, through a MOST network to theDVD decoder 24. That is, themultimedia network 18 may be configured and arranged for example as a MOST network. In one embodiment, the signal transmission anddecoding system 10 may be employed in a motor vehicle, such as an automobile. - The present invention is distinguished from techniques wherein the encoded data stream is decoded at the data source (e.g., the DVD player), and then transmitted in multichannel mode as linear PCM data through for example a MOST network. However, this technique requires a bus bandwidth that is three to four times greater than the bus bandwidth required by the system of the present invention. In addition, the PCM data would have to be re-encoded once again for copyright reasons since decoded Dolby or dts data may not be transmitted in an open system. Therefore, when compared to known methods and systems, the present invention is distinguished by significantly less technical complexity despite the requirement of two transcoders.
- Although the present invention has been shown and described with respect to several preferred embodiments thereof, various changes, omissions and additions to the form and detail thereof, may be made therein, without departing from the spirit and scope of the invention.
Claims (22)
1. A signal transmission and decoding system, comprising:
a data source that transmits first encoded data over a first transmission medium;
a first transcoder that receives said first encoded data via said first transmission medium, and transcodes said first encoded data to provide transcoded encoded data that is transmitted over a second transmission medium;
a second transcoder that receives said transcoded encoded data via said second transmission medium, and transcodes said transcoded encoded data to provide second encoded data that is transmitted over a third transmission medium; and
a data sink that receives said second encoded data via said third transmission medium, and decodes said second encoded data to provide decoded data.
2. The signal transmission and decoding system of claim 1 , wherein said data source comprises a DVD player.
3. The signal transmission and decoding system of claim 2 , wherein said data sink comprises a DVD decoder.
4. The signal transmission and decoding system of claim 1 , wherein said data source comprises means for providing said first encoded data as packetized data that is transmitted over said first transmission medium.
5. The signal transmission and decoding system of claim 1 , wherein said packetized data comprises a header field and data field.
6. The signal transmission and decoding system of claim 1 , wherein said first transcoder comprises a phase-locked loop that converts the frequency of said first encoded data configured as a biphase signal data, to the frequency of said second transmission medium.
7. The signal transmission and decoding system of claim 6 , wherein said first transcoder comprises means for transcoding said first encoded signal that complies with standard IEC 61937, and transcoded encoded signal is configured and arranged to be transmitted over said second transmission medium that is configured as a MOST network.
8. The signal transmission and decoding system of claim 6 , wherein unassigned bits according to standard IEC 61937 are configured to provide command control data.
9. The signal transmission and decoding system of claim 8 , wherein the unassigned bits are indicative of how many zeroes must be added to or deleted from the pause packets of the data stream.
10. The signal transmission and decoding system of claim 8 , wherein said data sink comprises a multichannel decoder.
11. The signal transmission and decoding system of claim 8 , wherein said data sink comprises a dts decoder.
12. The signal transmission and decoding system of claim 8 , wherein said data sink comprises an MPEG decoder.
13. The signal transmission and decoding system of claim 8 , wherein said data sink comprises an MLP decoder.
14. A method of transmitting data from a DVD player to a DVD decoder, comprising:
transmitting encoded data from the DVD player over a first transmission medium;
receiving said encoded data and transcoding said received encoded data to provide transcoded encoded data;
transmitting said transcoded encoded data over a second transmission medium;
receiving said transcoding encoded data and transcoding said received transcoded encoded data to provide received encoded DVD data; and
transmitting said received encoded DVD data over a third transmission medium to the DVD decoder.
15. The method of claim 14 , wherein said step of transcoding said received encoded data comprises transcoding said received encoded data comprising sampled data having a sampled frequency f1, to provide said transcoded encoded data having a sampled frequency f2.
16. The method of claim 15 , wherein said step of transcoding said received transcoded encoded data comprises transcoding said received transcoded data comprising data having a sampled frequency f2 to provide said received encoded DVD data having a sampled frequency f1
17. The method of claim 16 , wherein said second transmission medium is configured and arranged as a MOST bus.
18. The method of claim 14 , wherein said step of transcoding said received encoded data comprises determining the sampling rate f1, of the data stream supplied by the DVD player and transcoding said received encoded data to provide said transcoded encoded data having a sampling rate f2 associated with the second transmission medium.
19. The method of claim 18 , wherein said step of transcoding said received encoded data comprises changing the number of bits within a pause data field of said received encoded data configured as packetized data.
20. The method of claim 19 , wherein said step of changing the number of bits comprises deleting a predetermined number of digital zeroes from the pause data field in order to convert the sampling rate.
21. The method of claim 19 , wherein said step of changing the number of bits comprises adding a predetermined number of digital zeroes to the pause data field in order to convert the sampling rate.
22. A motor vehicle signal transmission and decoding system, comprising:
a DVD player that transmits first encoded data over a first transmission medium:
a first transcoder that receives said first encoded data via said first transmission medium, and transcodes said first encoded data to provide transcoded encoded data that is transmitted over a second transmission medium;
a second transcoder that receives said transcoded encoded data via said second transmission medium, and transcodes said transcoded encoded data to provide second encoded data that is transmitted over a third transmission medium; and
a DVD decoder that receives said second encoded data via said third transmission medium, and decodes said second encoded data to provide decoded data.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10129108A DE10129108A1 (en) | 2001-06-16 | 2001-06-16 | Method and circuit arrangement for data transmission |
DE10129108.6 | 2001-06-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030002859A1 true US20030002859A1 (en) | 2003-01-02 |
Family
ID=7688430
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/479,885 Active 2026-05-20 US8345709B2 (en) | 2001-06-16 | 2002-06-16 | Bit stream conversion system |
US10/173,144 Abandoned US20030002859A1 (en) | 2001-06-16 | 2002-06-17 | Method and circuit for data transmission |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/479,885 Active 2026-05-20 US8345709B2 (en) | 2001-06-16 | 2002-06-16 | Bit stream conversion system |
Country Status (8)
Country | Link |
---|---|
US (2) | US8345709B2 (en) |
EP (2) | EP1267347A1 (en) |
JP (3) | JP2003110998A (en) |
KR (1) | KR100915488B1 (en) |
AU (1) | AU2002322120A1 (en) |
CA (1) | CA2443626C (en) |
DE (1) | DE10129108A1 (en) |
WO (1) | WO2002103999A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040046778A1 (en) * | 2002-09-09 | 2004-03-11 | Niranjan Sithampara Babu | System and method to transcode and playback digital versatile disc (DVD) content and other related applications |
KR100863258B1 (en) | 2007-05-10 | 2008-10-15 | 주식회사 세인텍 | An interface device between dvd player and most network and dvd player for most |
US10136147B2 (en) | 2014-06-11 | 2018-11-20 | Dolby Laboratories Licensing Corporation | Efficient transcoding for backward-compatible wide dynamic range codec |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7327742B2 (en) * | 2002-06-26 | 2008-02-05 | Standard Microsystems Corp. | Communication system and method for sending isochronous streaming data within a frame segment using a signaling byte |
US7917237B2 (en) * | 2003-06-17 | 2011-03-29 | Panasonic Corporation | Receiving apparatus, sending apparatus and transmission system |
US11106424B2 (en) | 2003-07-28 | 2021-08-31 | Sonos, Inc. | Synchronizing operations among a plurality of independently clocked digital data processing devices |
US9207905B2 (en) | 2003-07-28 | 2015-12-08 | Sonos, Inc. | Method and apparatus for providing synchrony group status information |
US8234395B2 (en) | 2003-07-28 | 2012-07-31 | Sonos, Inc. | System and method for synchronizing operations among a plurality of independently clocked digital data processing devices |
US8086752B2 (en) | 2006-11-22 | 2011-12-27 | Sonos, Inc. | Systems and methods for synchronizing operations among a plurality of independently clocked digital data processing devices that independently source digital data |
US11106425B2 (en) | 2003-07-28 | 2021-08-31 | Sonos, Inc. | Synchronizing operations among a plurality of independently clocked digital data processing devices |
US8290603B1 (en) | 2004-06-05 | 2012-10-16 | Sonos, Inc. | User interfaces for controlling and manipulating groupings in a multi-zone media system |
US11294618B2 (en) | 2003-07-28 | 2022-04-05 | Sonos, Inc. | Media player system |
US11650784B2 (en) | 2003-07-28 | 2023-05-16 | Sonos, Inc. | Adjusting volume levels |
GB2411060B (en) * | 2004-02-12 | 2007-10-24 | Micron Technology Inc | Low power comparator |
US9374607B2 (en) | 2012-06-26 | 2016-06-21 | Sonos, Inc. | Media playback system with guest access |
US9977561B2 (en) | 2004-04-01 | 2018-05-22 | Sonos, Inc. | Systems, methods, apparatus, and articles of manufacture to provide guest access |
CN100550130C (en) * | 2004-04-02 | 2009-10-14 | Kddi株式会社 | Be used to distribute and be used to reset the content distributing server and the terminal of content frame of music |
US8326951B1 (en) | 2004-06-05 | 2012-12-04 | Sonos, Inc. | Establishing a secure wireless network with minimum human intervention |
US8868698B2 (en) | 2004-06-05 | 2014-10-21 | Sonos, Inc. | Establishing a secure wireless network with minimum human intervention |
KR100789756B1 (en) * | 2005-12-09 | 2008-01-02 | 한국전자통신연구원 | A decision apparatus and method of the transmission format using the variable frame lengths, and decoding method using that |
KR20070101097A (en) * | 2006-04-10 | 2007-10-16 | 삼성전자주식회사 | Method and apparatus for generating transport frame, and method and apparatus for processing transport frame |
US9202509B2 (en) | 2006-09-12 | 2015-12-01 | Sonos, Inc. | Controlling and grouping in a multi-zone media system |
US8483853B1 (en) | 2006-09-12 | 2013-07-09 | Sonos, Inc. | Controlling and manipulating groupings in a multi-zone media system |
US8788080B1 (en) | 2006-09-12 | 2014-07-22 | Sonos, Inc. | Multi-channel pairing in a media system |
JP4845709B2 (en) * | 2006-12-20 | 2011-12-28 | アルパイン株式会社 | Audio-visual equipment and audio / video frame creation method thereof |
US11265652B2 (en) | 2011-01-25 | 2022-03-01 | Sonos, Inc. | Playback device pairing |
US11429343B2 (en) | 2011-01-25 | 2022-08-30 | Sonos, Inc. | Stereo playback configuration and control |
US20130279597A1 (en) * | 2012-04-24 | 2013-10-24 | Magnum Semiconductor, Inc. | Apparatuses and methods for bitstream bitstuffing |
US9729115B2 (en) | 2012-04-27 | 2017-08-08 | Sonos, Inc. | Intelligently increasing the sound level of player |
US9008330B2 (en) | 2012-09-28 | 2015-04-14 | Sonos, Inc. | Crossover frequency adjustments for audio speakers |
US9516440B2 (en) | 2012-10-01 | 2016-12-06 | Sonos | Providing a multi-channel and a multi-zone audio environment |
US9226087B2 (en) | 2014-02-06 | 2015-12-29 | Sonos, Inc. | Audio output balancing during synchronized playback |
US9226073B2 (en) | 2014-02-06 | 2015-12-29 | Sonos, Inc. | Audio output balancing during synchronized playback |
US9665341B2 (en) | 2015-02-09 | 2017-05-30 | Sonos, Inc. | Synchronized audio mixing |
US10248376B2 (en) | 2015-06-11 | 2019-04-02 | Sonos, Inc. | Multiple groupings in a playback system |
US10712997B2 (en) | 2016-10-17 | 2020-07-14 | Sonos, Inc. | Room association based on name |
US11922664B2 (en) * | 2021-10-04 | 2024-03-05 | Tencent America LLC | Method and apparatus of adaptive sampling for mesh compression by decoders |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6205223B1 (en) * | 1998-03-13 | 2001-03-20 | Cirrus Logic, Inc. | Input data format autodetection systems and methods |
US20020015442A1 (en) * | 2000-05-26 | 2002-02-07 | Seiichi Takeuchi | Digital transmitter-receiver |
US6434197B1 (en) * | 1999-01-07 | 2002-08-13 | General Instrument Corporation | Multi-functional transcoder for compressed bit streams |
US6483543B1 (en) * | 1998-07-27 | 2002-11-19 | Cisco Technology, Inc. | System and method for transcoding multiple channels of compressed video streams using a self-contained data unit |
US20030131350A1 (en) * | 2002-01-08 | 2003-07-10 | Peiffer John C. | Method and apparatus for identifying a digital audio signal |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9000338A (en) * | 1989-06-02 | 1991-01-02 | Koninkl Philips Electronics Nv | DIGITAL TRANSMISSION SYSTEM, TRANSMITTER AND RECEIVER FOR USE IN THE TRANSMISSION SYSTEM AND RECORD CARRIED OUT WITH THE TRANSMITTER IN THE FORM OF A RECORDING DEVICE. |
ATE143007T1 (en) * | 1991-07-05 | 1996-10-15 | Duphar Int Res | VITAMIN-D DERIVATIVE, METHOD FOR THE PRODUCTION THEREOF AND INTERMEDIATE PRODUCTS THEREOF |
JPH0750645A (en) | 1993-08-06 | 1995-02-21 | Matsushita Electric Ind Co Ltd | Data rate averaging device |
US5617419A (en) * | 1994-09-20 | 1997-04-01 | International Business Machines Corporation | Adapting switch port and work station communication adapters to data frame types with disparate formats and data rates |
JP3062152B2 (en) | 1995-04-11 | 2000-07-10 | 株式会社東芝 | Data communication system |
US5802068A (en) * | 1995-06-30 | 1998-09-01 | Nippon Steel Corporation | Multiplexing apparatus of a plurality of data having different bit rates |
GB9514956D0 (en) * | 1995-07-21 | 1995-09-20 | British Telecomm | Transmission of digital signals |
US6421695B1 (en) * | 1995-10-28 | 2002-07-16 | Lg Electronics Inc. | Apparatus for implementing inverse discrete cosine transform in digital image processing system |
CN1202676C (en) * | 1995-12-07 | 2005-05-18 | 皇家菲利浦电子有限公司 | Method and device for encoding, transferring and decoding non-PCM bitstream between digital versatile disc device and multi-channel reproduction apparatus |
JP2810029B2 (en) | 1996-03-21 | 1998-10-15 | 株式会社東芝 | Packing processing method and packet processing device |
US5878045A (en) * | 1996-04-26 | 1999-03-02 | Motorola, Inc. | Method and apparatus for converting data streams in a cell based communications system |
JP4004147B2 (en) | 1997-07-29 | 2007-11-07 | 松下電器産業株式会社 | Data transmitting device, data receiving device, and data recording device |
US6618396B1 (en) * | 1997-07-29 | 2003-09-09 | Matsushita Electric Ind Co Ltd | Data transmitting device, data receiving device, and data recording device |
US6079062A (en) | 1997-10-01 | 2000-06-27 | Mullin; Kevin M. | Infection control sleeve for a patient lift |
US5973628A (en) | 1997-10-03 | 1999-10-26 | Cisco Technology, Inc. | Parallel variable bit encoder |
JP3235655B2 (en) | 1997-12-01 | 2001-12-04 | 日本電気株式会社 | Fixed-length packet multiplexer for low-speed general-purpose data with burst characteristics |
US6263019B1 (en) * | 1998-10-09 | 2001-07-17 | Matsushita Electric Industrial Co., Ltd. | Variable rate MPEG-2 video syntax processor |
US6256612B1 (en) * | 1998-12-03 | 2001-07-03 | Telefonaktiebolaget L M Ericsson (Publ) | End-to-end coder/decoder (codec) |
JP2000215598A (en) * | 1999-01-27 | 2000-08-04 | Sony Corp | Digital signal transmitting method, digital signal transmitting system, digital signal transmitting device, and recording medium |
US6657996B1 (en) * | 1999-04-21 | 2003-12-02 | Telogy Networks, Inc. | Apparatus and method for improving voice quality by removing tandem codecs in a voice communication link |
JP2000324110A (en) * | 1999-05-10 | 2000-11-24 | Mitsubishi Electric Corp | Communication method and communication device |
JP3697967B2 (en) * | 1999-09-22 | 2005-09-21 | 松下電器産業株式会社 | Audio transmitting apparatus and audio receiving apparatus |
US20020039211A1 (en) | 1999-09-24 | 2002-04-04 | Tian Shen | Variable rate high-speed input and output in optical communication networks |
JP2001125596A (en) | 1999-10-27 | 2001-05-11 | Matsushita Electric Ind Co Ltd | Audio data transmission method and device |
JP2001136138A (en) * | 1999-11-05 | 2001-05-18 | Toshiba Corp | Digital video image/digital audio transmission method |
JP3659145B2 (en) | 2000-08-30 | 2005-06-15 | 松下電器産業株式会社 | Audio data transmission method and audio data transmission apparatus |
JP2002297193A (en) | 2001-03-30 | 2002-10-11 | Sanyo Electric Co Ltd | Digital audio data output device |
US6654383B2 (en) * | 2001-05-31 | 2003-11-25 | International Business Machines Corporation | Multi-protocol agile framer |
CA2512725A1 (en) * | 2003-02-06 | 2004-08-26 | Dolby Laboratories Licensing Corporation | Continuous backup audio |
-
2001
- 2001-06-16 DE DE10129108A patent/DE10129108A1/en not_active Ceased
-
2002
- 2002-05-22 EP EP02011251A patent/EP1267347A1/en not_active Withdrawn
- 2002-06-14 JP JP2002174164A patent/JP2003110998A/en active Pending
- 2002-06-16 JP JP2003506180A patent/JP4037361B2/en not_active Expired - Lifetime
- 2002-06-16 CA CA2443626A patent/CA2443626C/en not_active Expired - Lifetime
- 2002-06-16 KR KR1020037016397A patent/KR100915488B1/en active IP Right Grant
- 2002-06-16 US US10/479,885 patent/US8345709B2/en active Active
- 2002-06-16 AU AU2002322120A patent/AU2002322120A1/en not_active Abandoned
- 2002-06-16 EP EP02780815.3A patent/EP1400104B1/en not_active Expired - Lifetime
- 2002-06-16 WO PCT/US2002/019160 patent/WO2002103999A2/en active Application Filing
- 2002-06-17 US US10/173,144 patent/US20030002859A1/en not_active Abandoned
-
2007
- 2007-04-25 JP JP2007116261A patent/JP4457125B2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6205223B1 (en) * | 1998-03-13 | 2001-03-20 | Cirrus Logic, Inc. | Input data format autodetection systems and methods |
US6483543B1 (en) * | 1998-07-27 | 2002-11-19 | Cisco Technology, Inc. | System and method for transcoding multiple channels of compressed video streams using a self-contained data unit |
US6434197B1 (en) * | 1999-01-07 | 2002-08-13 | General Instrument Corporation | Multi-functional transcoder for compressed bit streams |
US20020015442A1 (en) * | 2000-05-26 | 2002-02-07 | Seiichi Takeuchi | Digital transmitter-receiver |
US20030131350A1 (en) * | 2002-01-08 | 2003-07-10 | Peiffer John C. | Method and apparatus for identifying a digital audio signal |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040046778A1 (en) * | 2002-09-09 | 2004-03-11 | Niranjan Sithampara Babu | System and method to transcode and playback digital versatile disc (DVD) content and other related applications |
KR100863258B1 (en) | 2007-05-10 | 2008-10-15 | 주식회사 세인텍 | An interface device between dvd player and most network and dvd player for most |
US10136147B2 (en) | 2014-06-11 | 2018-11-20 | Dolby Laboratories Licensing Corporation | Efficient transcoding for backward-compatible wide dynamic range codec |
Also Published As
Publication number | Publication date |
---|---|
CA2443626A1 (en) | 2002-12-27 |
JP4037361B2 (en) | 2008-01-23 |
JP4457125B2 (en) | 2010-04-28 |
US20040252036A1 (en) | 2004-12-16 |
JP2003110998A (en) | 2003-04-11 |
EP1400104A4 (en) | 2006-03-08 |
EP1400104B1 (en) | 2014-12-03 |
CA2443626C (en) | 2013-08-27 |
EP1400104A2 (en) | 2004-03-24 |
KR20040010715A (en) | 2004-01-31 |
KR100915488B1 (en) | 2009-09-03 |
EP1267347A1 (en) | 2002-12-18 |
DE10129108A1 (en) | 2003-01-02 |
WO2002103999A3 (en) | 2003-02-20 |
AU2002322120A1 (en) | 2003-01-02 |
JP2007300628A (en) | 2007-11-15 |
US8345709B2 (en) | 2013-01-01 |
JP2005507183A (en) | 2005-03-10 |
WO2002103999A2 (en) | 2002-12-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20030002859A1 (en) | Method and circuit for data transmission | |
US7668723B2 (en) | Scalable lossless audio codec and authoring tool | |
US8374858B2 (en) | Scalable lossless audio codec and authoring tool | |
JP5107574B2 (en) | Data reproduction apparatus, data reproduction method, program, and integrated circuit | |
JP2001189713A (en) | Data transmitter and data transmission method | |
KR19980702026A (en) | Method and apparatus for encoding, transmitting and decoding non-PCM bitstreams between digital versatile disk devices and multichannel playback devices | |
JPH0818914A (en) | Digital signal transmission method, digital signal transmitter and receiver and transmitter-receiver | |
EP1741093B1 (en) | Scalable lossless audio codec and authoring tool | |
JP2006527864A (en) | Receiver device, transmitter device, and transmission system | |
ATE280460T1 (en) | TRANSCODER FOR DATA STREAMS WITH FIXED AND VARIABLE DATA RATES | |
CN103620678A (en) | Bit stream transmission device, bit stream reception/transmission system, bit stream reception device, bit stream transmission method, bit stream reception method, and bit stream | |
US6804455B1 (en) | Method and apparatus for transceiving audio data stream through a digital interface | |
CN101971613A (en) | Transporting vibro-kinetic signals in a digital cinema environment | |
US20100014595A1 (en) | Audio and/or video data processing device, communication or data network for transcoding audio and/or video data, and method for decoding audio and/or video data | |
JP2005295394A (en) | Transmission device and transmission method, reception device and reception method, and transceiver system | |
JP2002007074A (en) | Recording device and transmission device | |
KR0144780B1 (en) | Digital audio signal decoding apparatus | |
US7190693B2 (en) | Method, system and apparatuses for transferring audio and/or video signals between synchronous and asynchronous network and for minimizing delay time in such networks | |
KR0177314B1 (en) | Apparatus for protecting transport packet in mpeg system | |
JP2006050387A (en) | Data reproducing method, and data reproducing apparatus | |
US20050136900A1 (en) | Transcoding apparatus and method | |
JP4357578B1 (en) | Audio data processing apparatus and audio data processing method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HARMAN/BECKER AUTOMOTIVE SYSTEMS, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NITZPON, HANS-JURGEN;KLAUS-WAGENBRENNER, JOCHEN;TEICHNER, DETLEF;REEL/FRAME:013260/0516;SIGNING DATES FROM 20020813 TO 20020814 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |