CN1349647A - Portable data storage/audio reproduction apparatus - Google Patents
Portable data storage/audio reproduction apparatus Download PDFInfo
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- CN1349647A CN1349647A CN00806885A CN00806885A CN1349647A CN 1349647 A CN1349647 A CN 1349647A CN 00806885 A CN00806885 A CN 00806885A CN 00806885 A CN00806885 A CN 00806885A CN 1349647 A CN1349647 A CN 1349647A
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- audio
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- reproduction apparatus
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- 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
- G11B20/02—Analogue recording or reproducing
- G11B20/04—Direct recording or reproducing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/16—Storage of analogue signals in digital stores using an arrangement comprising analogue/digital [A/D] converters, digital memories and digital/analogue [D/A] converters
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- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
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- 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
- G11B2020/10537—Audio or video recording
- G11B2020/10546—Audio or video recording specifically adapted for audio data
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/60—Solid state media
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- Circuits Of Receivers In General (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
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Abstract
A portable data storage/audio reproduction apparatus comprising a power supply (36) for supplying operating power to the reproduction apparatus, a key input unit (10) for inputting a plurality of key signals, a personal computer (12) for downloading and storing audio data and various information data through Internet or PC communication, a flash memory (14) for storing the audio data and various information data from the personal computer (12), a microphone (16) for converting external input voice or sound into an electrical signal, an FM radio receiver (18) for receiving a desired band of FM radio signals, a CPU (20) for generating a plurality of control signals, an LCD (22) for providing a visual indication of output data from the CPU (20), a digital signal processor (24) for processing input/output digital signals to/from the CPU (20), an audio codec (26) for performing audio coding/decoding operations, an audio input/output unit (28) for receiving an external analog audio signal, transferring it to the audio codec (26), receiving an analog audio signal from the audio codec and outputting it externally, a radio frequency transmitter (30) for modulating the analog audio signal from the audio codec into a radio frequency signal to remotely transmit it, and an equalizer (35) for compensating for a distortion of output audio data from the reproduction apparatus.
Description
Technical field
The present invention relates to portable data storage/audio reproduction apparatus, specifically, relate to a kind of like this portable data storage/audio reproduction apparatus, it can and can be stored in the voice data of downloading its storage chip from personal computer or audio frequency apparatus download voice data, so that the user can listen to the sound of the voice data of storage when carrying transcriber, and can be from the various information datas of personal computer download except voice data, and the information data of being downloaded is stored in its storage chip, perhaps be stored in other personal computers or the data storage device.
Background technology
In general, use as the sound signal of the audio system record voice of cassette recorder, CD Player or laser player or sound and/or from sound signal as the recording medium reproduction sound of disk or magneto-optic disk.
Using under the situation of tape as aforementioned recording medium, need be duplicate record and reproducing audio signal, still, because the characteristic of tape, under as hot and moist adverse condition, the problem of existence is to use tape semipermanently.In addition, when record or during reproducing audio signal, owing to be installed in the degradation that the friction of eraser in the audio system or write head makes tape.The variation of quality of tape has reduced the quality of sound, therefore, can not use tape for a long time.
When using CD as above-mentioned recording medium, hope can be reproduced the sound signal on note road semipermanently, but the problem that exists is that requirement equipment can be in CD disc recording sound signal.In addition, because this equipment is very expensive, so this equipment can not be applied to audio system.
In addition, be not easy the data-signal except voice or sound ground sound signal to be recorded on the aforementioned recording medium, perhaps the recorded data signal storage arrived other personal computers or storage medium from personal computer.
In other words, as utilize tape can on tape, write down, reproduce and erase voice data as the audio system of the cassette recorder of recording medium, but, because the rewinding of the mechanical friction of tape or tape or fast forward can not be selected the tune of customer requirements fast.In addition, under the situation of not using other equipment, CD can not recording audio data and shortcoming be that cost is too high.And the user is replacing with current tape or CD dish on a tape that comprises different musical genre, singer or performance group or CD dish to appreciate the thing that required song is a trouble.
In addition, only be connected to output unit by lead as the tape of recording medium or CD, therefore, the user can not listen to music from tape or CD at a distance.And being difficult in the last record of tape or CD is not the specific information data of voice data.
Summary of the invention
Therefore, for addressing the above problem, the purpose of this invention is to provide a kind of portable data storage/audio reproduction apparatus, this device according to personal computer or down audio compressed data in the program moved download the voice data of compression by internet or PC communication, and use compress technique that the voice data of downloading is stored in the audio data storage medium as storage chip by audio memory means, and the voice data of storage and output download, when the user carries transcriber, the music that the user can the listening to audio data or be used for the voice of language learning.
Another object of the present invention provides a kind of portable data storage/audio reproduction apparatus, and this device can be stored various information datas, and the data of storage can be sent or store into other personal computer or storage medium.
Another object of the present invention provides a kind of portable data storage/audio reproduction apparatus, this device will compress the voice data classification of storage according to tabulation, and visually show the tabulation of classification by display device, and by wireless remote transmission voice data to audio system, make that the user can be from the music of audio system listening to audio data.
According to the present invention, portable data storage/audio reproduction apparatus can be realized above-mentioned purpose and other purpose, this device comprises power supply, and its conversion input AC power supplies is the DC power level that requires, and the DC power supply of rectification conversion also supplies to transcriber with the power supply of rectification; Key-press input unit is used to import a plurality of key control signals, with the various functions of operation transcriber; Personal computer passes through internet or PC communication download and stores audio data and various information data according to the program that is included in this; Flash memories with requirement storage capacity, storage is from the voice data and the various information data of personal computer; Microphone is converted into electric signal to outside input voice or sound; The FM radio receiver receives the FM wireless signal that requires frequency band by receiving antenna; CPU (central processing unit), the operation of operating key input block, personal computer and flash memories, and be that output data is carried out algorithm operating according to the program that is included in this, to produce a plurality of control signals; LCD provides the Visual Display from the output data of CPU (central processing unit); Digital signal processor is handled CPU (central processing unit) and from the I/O digital signal of CPU (central processing unit); Audio codec, be used for the digital audio signal coding from digital signal processor is become simulated audio signal, the simulating signal that sends coding is to the audio frequency I/O unit, simulated audio signal decoding the becoming digital audio and video signals from the audio frequency I/O unit, the digital audio and video signals that sends decoding is to digital signal processor; The audio frequency I/O unit receives the external analog sound signal, and sends it to audio codec, receives simulating signal from audio codec, and it is outputed to the outside; Radio frequency sending set becomes radiofrequency signal to the simulated audio signal modulation from the coding of audio codec, and launches the radiofrequency signal of modulation by emitting antenna at a distance; Balanced device, compensation is from the distortion of the outputting audio data of transcriber.
Description of drawings
By following detailed and with reference to the accompanying drawings, it is very clear that purpose of the present invention, characteristics and advantage will become, wherein:
Fig. 1 is the block scheme of portable data storage/audio reproduction apparatus of the present invention;
Fig. 2 is the detailed circuit diagram of radio frequency sending set shown in Figure 1.
Realize best way of the present invention
With reference to figure 1, Fig. 1 is the block diagram that portable data storage/audio reproduction apparatus of the present invention.In this accompanying drawing, reference number 36 expression power supplys, it is used for alternating current (AC) of input is converted into the direct current (DC) that requires level, the DC power supply of rectification conversion, and the DC power supply of rectification supplied to transcriber.Can use general battery or rechargeable battery and not use power supply 36.Power supply 36 can comprise the adapter of separation, is used for reduction or conversion external voltage, or regulator, is used to export the fixed level of burning voltage.Transcriber is preferably accepted power supply from adapter or battery.Battery generally comprises the battery of nickel or other ion.Battery is the power charging of handy adapter.
Reference number 10 expression key input units are used to import a plurality of key control signals, with the various functions of operation transcriber.Key input unit 10 comprises the record key, be used in the transcriber stores audio data, play button, be used for again the existing voice data that is in transcriber, stop key is used to stop the operation of transcriber, volume key, be used to raise or reduce the level of the output audio of transcriber, beginning/detection of end key is used for starting point and the end point of detection of stored at the voice data of transcriber, Menu key, the all functions that are used for the display reproduction device, balanced device on/off key is used for the operation of on/off balanced device 35, so that the output sound of correcting reproducing device, repeat key, be used for the repetition of repetition data that device requires, the wireless turn-on key of frequency modulation (PFM) (FM) is used to receive the FM wireless signal, radio frequency sends key, by the wireless transmit sound signal.
Reference number 12 expression personal computers, use mobile motion picture expert group version 2 (MPEG2) layer 3 (MP3) technology to download the voice data of compression, MP3 is international audio compress standard, and download various information datas by internet or PC communication, and storage voice data and the information data downloaded according to the program that is included in this.Personal computer 12 can be downloaded various file information data and voice data, and data downloaded is outputed to the I/O unit that is connected this.
Reference number 14 expressions have the flash memories of requirement storage capacity, and storage is from the voice data and the various information data of personal computer 12.When the data volume that is stored in flash memories surpassed the storage capacity that requires, the data volume that surpasses was erased automatically at input phase.Flash memories 12 is random access memory (RAM) or electricallyerasable ROM (EEROM) (EEPROM) preferably.
Reference number 16 expression microphones are used for outside input voice or sound are converted into electric signal.
Reference number 22 expression LCD (LCD) are used to provide the Visual Display from the output data of CPU20.LCD 22 preferably 128
*32 dot pattern types.LCD 22 comprise key input state, the output tune of mode of operation, the key input unit of a plurality of charged states that visually show battery, transcriber title, be stored in the icon of the tabulation etc. of the voice data in the transcriber.
The noise component of the outputting audio data of balanced device 35 decay transcribers is with compensating distortion.
Interface 13 is connected between personal computer 12 and the CPU 20, and the data that are used between it connect.Interface 29 is connected between audio frequency input // output unit 28 and the audio system 32, and the data that are used between it connect.
Describe the operation of the portable data storage/audio reproduction apparatus of said structure of the present invention now in detail.
At first, when the user needed, personal computer 12 was by paying or free internet or PC communication is downloaded and storage is compressed into the data of mp3 file form by compress technique, and was uploaded on homepage, bulletin board or the data library.Then, in this transcriber, the voice data of being downloaded by personal computer 12 is stored in the flash memories 14 by interface 13 under the control of CPU 20.Note, only need the music data of the storage capacity storage of about 3-4Mb, yet the storage capacity that needs about 40Mb or be higher than 40Mb is stored more music data on general CD dish with about three minutes length of mp3 file form.
As a result, the quantity that can store music file is determined according to the storage capacity of flash memories 14 and the size of each file.In the present embodiment, the music file of about 20 tunes can be stored in the flash memories 14.When having connected smart card or independent memory storage, can in this transcriber, store a large amount of music files.Flash memories 14 preferably can be stored and be surpassed one hour amount of audio data.
On the other hand, outside input voice or the sound from microphone 16 can be stored in the flash memories 14.In other words, microphone 16 is converted into electric signal to outside input voice or sound, under the control of CPU 20 this electric signal is stored in the flash memories 14.If the wireless turn-on key of FM on user's operating key input block 10, so, CPU 20 is added to FM wireless receiver 18 to corresponding steering order, to receive the FM radio broadcasting by receiving antenna 19.At this moment, if the record key on user's operating key input block 10, then the FM radio broadcasting that is received by FM wireless receiver 18 is stored in the flash memories 14 under the control of CPU 20.
In addition, can under the control of CPU 20, be stored in the flash memories 14, therefore, make the user to learn foreign languages from the voice data of the relevant foreign language of personal computer 12 or audio system 32.
On the other hand, can downloaded stored in the data in the personal computer 12 with the extension name as HWP, BMP, GIF, TXT, DOC, and under the control of CPU 20, be stored in the flash memories 14.In this case, the data that are stored in flash memories 14 can be transferred to and store into another personal computer.
LCD 22 provides the literal or the numeral of all functions of this transcriber to show under the control of CPU 20.LCD 22 preferably can show maximum two row about 12 separately 128
*32 dot pattern types.For example, key input state that LCD 22 can display key input block 10 and the state of a control of CPU 20.In comprising separation graph target situation, LCD 22 can show the charged state of battery and as counter or based on the current time or the function of the game machine of various programs.
In addition, LCD 22 can show whether the music file that is stored in the flash memories 14 is write as by Korean, or by being write as the foreign language of English or Japanese.LCD preferably shows the content that is stored in the music file in the flash memories 14 with Korean or English.For example, be stored in the situation that the music file in the flash memories 14 write as by Korean or English, LCD 22 shows title, lyric song index line, composer or the lyric song author of music file with Korean or English.
This transcriber preferably has the tune selection function of tune group, singer or school or the user's preferences tune of explicit user requirement on LCD 22.In addition, the tabulation that is stored in the music file in the flash memories 14 can be presented on the LCD 22 with storage order.
On the other hand, in compress technique of the present invention, the Voice ﹠ Video signal sends (video: 1.2Mb/s, audio frequency: 0.3Mb/s) with the speed of 1.5Mb/s.In fact, unpressed amount of audio data is 44.100 samples/s on the CD dish
*16b/s
*2 passages, it is greater than 1.4Mb/s.At this, single channel is the single audio frequency passage, and stereo channel is not subjected to the influence of common stereo coding.
Balanced device 35 is connected to CPU 20, with the signal to noise ratio (S/N ratio) of the outputting audio data that improves this transcriber, does not have the data decay so that the quality of output sound is returned to the quality of the sound on the CD dish.If the play button on user's operating key input block 10, so, CPU 20 outputs to digital signal processor 24 to the music file in the storage year flash memories 14 and carries out digital processing.Digital signal processor comprises microprocessor, and it carries out the algebraic operation of digital value, with control filtering, modulating/demodulating, spectrum analysis and linear estimation.
Then, audio codec 26 becomes simulated audio signal to the digital audio signal coding of digital signal processor 24, and the simulated audio signal of coding is sent to audio frequency I/O unit 28.
Audio frequency I/O unit 28 is amplified to voice grade with the simulated audio signal of audio codec 26, and arrives audio system 32 by interface 29 these signals of wired transmission.On the other hand, in the situation of the radio frequency transmission key on user's operating key input block 10, radio frequency sending set becomes radiofrequency signal to the modulation of the encoding and decoding simulated audio signal of audio codec 26, and remotely launches the radiofrequency signal of modulation by emitting antenna.In other words, in radio frequency sending set 30, the frequency level that frequency configuration/oscillatory circuit 40 is provided with by 106.2MHz FM frequency, and on set frequency level, produce signal oscillating.Then, mission controller 42 is exported the simulated audio signal of audio codec 26 codings and the oscillator signal of frequency configuration/oscillatory circuit 40 synchronously, and primary amplifier TR1 mainly is amplified to first predetermined level to the sound signal of mission controller 42.The output signal of oscillator 43 vibration primary amplifier TR1, secondary amplifier is amplified to second predetermined level to the output signal of oscillator 43 for the second time.Subsequently, launch second amplifying signal of secondary amplifier TR2 by tuner 44, gain controller 45 and emitting antenna 31.
Then, audio system 32 is passed through the radiofrequency signal that receiving antenna 33 receives from radio frequency sending set, and this signal demodulation is become original sound signal, outwards exports the sound signals of these demodulation by loudspeaker 37.Audio system 32 preferably includes the FM wireless receiver, is used to receive the radiofrequency signal with demodulation radio frequency sending set 30.
Therefore, this transcriber can reproduce the music file of storage, and by wireless and wiredly at a distance the music file that reproduces is sent to the audio system that comprises the FM wireless receiver.
Otherwise, under the control of CPU 20, by audio codec 26 and digital signal processor 24, can be wired or wireless receive require the voice data in the audio system and it be stored in the flash memories 14.In addition, the user can use earphone or biphone to listen to the sound that is stored in the music file in the transcriber.
This transcriber preferably adopts brigade commander's coding techniques, is used for the noiseless part of audio compressed data.
Industrial applicability
Clearly describe above, the invention provides a kind of by internet, PC communication, FM wireless receiver, microphone or audio system can be downloaded or the portable data storage/audio reproduction apparatus of reception and store M P3 music file, various data file or foreign language data.Therefore, when carrying transcriber, the user can listen to sound or the voice that are stored in the voice data in the transcriber by earphone, biphone or loudspeaker.In addition, the user can be by wired or wireless sound or the voice of listening to the voice data of storage of audio system.This transcriber can be downloaded and musical genre, the singer of storage customer requirements or sing the music file of group from MP3 music file automatic vending machine, and can erase the music file of storage by storage order or time automatically.And the user can recognize the mode of operation of transcriber by LCD.In addition, it is very little that this transcriber relates to, and can carry easily.
Embodiment disclosed by the invention is illustrative, it will be apparent to those skilled in the art that under the situation of the scope and spirit that do not break away from content disclosed by the invention and claim various modifications, additional and to replace be possible.
Claims (8)
1. portable data storage/audio reproduction apparatus comprises:
Conversion input AC power supplies is the power supply of the DC power level that requires, and the DC power supply of rectification conversion also supplies to transcriber with the power supply of rectification;
Key input unit is used to import a plurality of key control signals, to operate the various functions of described transcriber;
Personal computer passes through internet or PC communication download and stores audio data and various information data according to the program that is included in this;
Flash memories with requirement storage capacity, storage is from the voice data and the various information data of personal computer;
Microphone is converted into electric signal to outside input voice or sound;
The FM wireless receiver receives the FM wireless signal that requires frequency band by receiving antenna;
CPU (central processing unit), the operation of operating key input block, personal computer and flash memories, and be that output data is carried out algorithm operating according to the program that is included in this, to produce a plurality of control signals;
LCD provides the Visual Display from the output data of described CPU (central processing unit);
Digital signal processor is handled the I/O digital signal by the CPU (central processing unit) input and output;
Audio codec, be used for the digital audio signal coding from digital signal processor is become simulated audio signal, the simulating signal that sends coding is to the audio frequency I/O unit, simulated audio signal decoding the becoming digital audio and video signals from the audio frequency I/O unit, the digital audio and video signals that sends decoding is to digital signal processor;
The audio frequency I/O unit receives the external analog sound signal, and this simulated audio signal is sent to audio codec, receives simulating signal from described audio codec, and this simulated audio signal is outputed to the outside;
Radio frequency sending set becomes radiofrequency signal to the simulated audio signal modulation from the coding of audio codec, and launches the radiofrequency signal of modulation by emitting antenna at a distance; And
Balanced device compensates the distortion of the outputting audio data of described transcriber.
2. by the described portable data storage/audio reproduction apparatus of claim 1, it is characterized in that described key input unit comprises:
The record key is used at described flash memories stored audio signal;
Play button is used for reproducing the described voice data that is stored in described flash memories;
Stop key is used to stop the operation of described transcriber;
Volume key is used to raise or reduces the level of described transcriber output audio;
Beginning/detection of end key is used for beginning and the end point of detection of stored at the described voice data of described flash memories;
Menu key is used to show all functions of described transcriber;
Balanced device on/off key is used for the operation of the described balanced device of on/off;
Repeat key is used for the reproduction in described transcriber repeat request data;
The wireless turn-on key of FM is used for the operation of tuning described FM wireless receiver;
The radio-frequency transmissions key is used for the operation of tuning described radio frequency sending set.
3. by the described portable data storage/audio reproduction apparatus of claim 1, it is characterized in that described radio frequency sending set comprises:
Frequency configuration/oscillatory circuit is used to be provided with the frequency level of requirement, and produces signal oscillating on the frequency level that is provided with;
Mission controller is used for the oscillator signal of the simulated audio signal of the coding of described audio codec and described frequency configuration/oscillatory circuit is exported synchronously;
Primary amplifier mainly is amplified to first predetermined level to the sound signal of mission controller.
Oscillator, the output signal of the described primary amplifier that vibrates;
Secondary amplifier is amplified to second predetermined level to the output signal of described oscillator for the second time;
Tuner, the output signal of described secondary amplifier be tuned to the channel that requires;
Gain controller is used to control the transmitting gain of described emitting antenna;
4. by the described portable data storage/audio reproduction apparatus of claim 1, it is characterized in that also comprising audio system, the described simulated audio signal that is used for the described I/O unit of wired reception, and with this simulated audio signal amplification, by loudspeaker the sound signal of amplifying is outwards exported, or the described radiofrequency signal by the described radio frequency sending set of receiving antenna wireless receiving, and this radiofrequency signal demodulation become original sound signal, by loudspeaker the sound signal of demodulation is outwards exported.
5. by one of claim 1 to 4 described portable data storage/audio reproduction apparatus, it is characterized in that also comprising:
Be connected first interface between described personal computer and the CPU (central processing unit), the data that are used between personal computer and the CPU (central processing unit) connect;
Be connected second interface between described audio frequency I/O unit and the audio system, the data that are used between audio frequency I/O unit and the audio system connect.
6. by the described portable data storage/audio reproduction apparatus of claim 1, it is characterized in that described power supply comprises common batteries and rechargeable battery.
7. by claim 1 or 6 described portable data storage/audio reproduction apparatus, it is characterized in that described display is 128
*32 dot pattern types, described display comprise the title of a plurality of key input states that visually show the mode of operation of the charged state of described battery, described transcriber, described key input unit, output tune and are stored in the icon of the voice data tabulation in the described flash memories.
8. by the described portable data storage/audio reproduction apparatus of claim 1, it is characterized in that described flash memories is the random access memory or the electrically erasable read-only memory that can be connected on the smart card.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1999/8500 | 1999-03-13 | ||
| KR1019990008500A KR19990046448A (en) | 1999-03-13 | 1999-03-13 | Data memory and sound signal player for portable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1349647A true CN1349647A (en) | 2002-05-15 |
Family
ID=19576514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00806885A Pending CN1349647A (en) | 1999-03-13 | 2000-03-13 | Portable data storage/audio reproduction apparatus |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1166266A1 (en) |
| JP (1) | JP2002539508A (en) |
| KR (2) | KR19990046448A (en) |
| CN (1) | CN1349647A (en) |
| AU (1) | AU3332100A (en) |
| WO (1) | WO2000055853A1 (en) |
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| JP5176287B2 (en) | 2006-04-25 | 2013-04-03 | ソニー株式会社 | Content reproduction system, content reproduction apparatus, and content reproduction method |
| KR101660299B1 (en) * | 2015-03-05 | 2016-09-27 | 한국세라믹기술원 | Celadon glaze composition and manufacturing method of celadon porcelain having excellent scratch resistance using the composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS63301996A (en) * | 1987-06-02 | 1988-12-08 | セイコーエプソン株式会社 | Digital musical card apparatus |
| JPH06110455A (en) * | 1992-09-25 | 1994-04-22 | Mitsubishi Electric Corp | Method for encoding and decoding audio signal and audio reproducing device using the method |
| JPH08315555A (en) * | 1995-05-16 | 1996-11-29 | Aiwa Co Ltd | Integral audio system |
| JP3847372B2 (en) * | 1996-03-29 | 2006-11-22 | 株式会社エクシング | Data distribution system and broadcast receiving apparatus |
| KR100262969B1 (en) * | 1997-03-22 | 2000-08-01 | 구자홍 | Digital audio player |
| KR100287366B1 (en) * | 1997-11-24 | 2001-04-16 | 윤순조 | Portable device for reproducing sound by mpeg and method thereof |
-
1999
- 1999-03-13 KR KR1019990008500A patent/KR19990046448A/en active Search and Examination
-
2000
- 2000-03-13 CN CN00806885A patent/CN1349647A/en active Pending
- 2000-03-13 EP EP00911449A patent/EP1166266A1/en not_active Withdrawn
- 2000-03-13 AU AU33321/00A patent/AU3332100A/en not_active Abandoned
- 2000-03-13 JP JP2000606006A patent/JP2002539508A/en active Pending
- 2000-03-13 KR KR1020017011559A patent/KR100354715B1/en not_active IP Right Cessation
- 2000-03-13 WO PCT/KR2000/000202 patent/WO2000055853A1/en active IP Right Grant
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384121C (en) * | 2005-04-30 | 2008-04-23 | 何天华 | Interactive audio-frequency broadcasting method and system, broadcasting platform and playing platform |
| CN100349145C (en) * | 2005-06-02 | 2007-11-14 | 圆刚科技股份有限公司 | Sound player |
| US7899410B2 (en) | 2006-12-19 | 2011-03-01 | Broadcom Corporation | Adjustable antenna interface and applications thereof |
| US7920527B2 (en) | 2006-12-19 | 2011-04-05 | Broadcom Corporation | Real-time/non-real-time/RF IC and applications thereof |
| US7953439B2 (en) | 2006-12-19 | 2011-05-31 | Broadcom Corporation | Voice-data-RF integrated circuit |
| US8208868B2 (en) | 2006-12-19 | 2012-06-26 | Broadcom Corporation | Adjustable antenna interface and applications thereof |
| US8374225B2 (en) | 2006-12-19 | 2013-02-12 | Broadcom Corporation | Voice/data/RF integrated circuit |
| CN101262662B (en) * | 2007-06-29 | 2011-02-09 | 浙江华立通信集团有限公司 | Tone generation method and device for 3G and 4G terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000055853A1 (en) | 2000-09-21 |
| KR100354715B1 (en) | 2002-10-04 |
| KR20020006678A (en) | 2002-01-24 |
| EP1166266A1 (en) | 2002-01-02 |
| JP2002539508A (en) | 2002-11-19 |
| KR19990046448A (en) | 1999-07-05 |
| AU3332100A (en) | 2000-10-04 |
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