WO1996027948A3 - Method and apparatus for controlling frequency of a multi-channel transmitter - Google Patents

Method and apparatus for controlling frequency of a multi-channel transmitter Download PDF

Info

Publication number
WO1996027948A3
WO1996027948A3 PCT/US1996/002847 US9602847W WO9627948A3 WO 1996027948 A3 WO1996027948 A3 WO 1996027948A3 US 9602847 W US9602847 W US 9602847W WO 9627948 A3 WO9627948 A3 WO 9627948A3
Authority
WO
WIPO (PCT)
Prior art keywords
frequencies
thermally stable
channel
channel transmitter
frequency discriminator
Prior art date
Application number
PCT/US1996/002847
Other languages
French (fr)
Other versions
WO1996027948A2 (en
Inventor
Thomas T Y Wong
Original Assignee
Illinois Technology Inst
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Illinois Technology Inst filed Critical Illinois Technology Inst
Priority to DE69624838T priority Critical patent/DE69624838T2/en
Priority to EP96911237A priority patent/EP0872051B1/en
Priority to AT96911237T priority patent/ATE227908T1/en
Priority to APAP/P/1997/001095A priority patent/AP809A/en
Priority to AU54184/96A priority patent/AU706897B2/en
Priority to NZ306032A priority patent/NZ306032A/en
Priority to UA97094789A priority patent/UA42829C2/en
Publication of WO1996027948A2 publication Critical patent/WO1996027948A2/en
Publication of WO1996027948A3 publication Critical patent/WO1996027948A3/en
Priority to BG101928A priority patent/BG63446B1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0483—Transmitters with multiple parallel paths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0491—Circuits with frequency synthesizers, frequency converters or modulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)

Abstract

A method and apparatus for controlling frequency of a multi-channel transmitter. A reference frequency is generated and emitted to a thermally stable frequency discriminator. The thermally stable frequency discriminator emits a dc voltage to a plurality of individual oscillators. The individual oscillators in continuous wave mode or modulated by baseband signals are combined into a multi-channel signal at an intermediate range of frequencies. The multi-channel intermediate range of frequencies is preferably amplified and emitted as an output signal. At relatively lower frequencies, such as 4-6 GHz, up-conversion of the output signal is not necessary. At relatively higher frequencies, an up-converter can be used to employ a second thermally stable frequency discriminator.
PCT/US1996/002847 1995-02-28 1996-02-28 Method and apparatus for controlling frequency of a multi-channel transmitter WO1996027948A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE69624838T DE69624838T2 (en) 1995-02-28 1996-02-28 METHOD AND ARRANGEMENT FOR REGULATING THE FREQUENCY OF A MULTI-CHANNEL TRANSMITTER
EP96911237A EP0872051B1 (en) 1995-02-28 1996-02-28 Method and apparatus for controlling frequency of a multi-channel transmitter
AT96911237T ATE227908T1 (en) 1995-02-28 1996-02-28 METHOD AND ARRANGEMENT FOR CONTROLLING THE FREQUENCY OF A MULTI-CHANNEL TRANSMITTER
APAP/P/1997/001095A AP809A (en) 1995-02-28 1996-02-28 Method and apparatus for controlling frequency of a multi-channel transmitter.
AU54184/96A AU706897B2 (en) 1995-02-28 1996-02-28 Method and apparatus for controlling frequency of a multi-channel transmitter
NZ306032A NZ306032A (en) 1995-02-28 1996-02-28 Frequency control of multichannel transmitter without phase lock loop
UA97094789A UA42829C2 (en) 1995-02-28 1996-02-28 Method for multichannel transmitter frequency control, and frequency controller
BG101928A BG63446B1 (en) 1995-02-28 1997-09-29 Method and device for multichannel transmitter frequency control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/396,137 1995-02-28
US08/396,137 US5768693A (en) 1995-02-28 1995-02-28 Method and apparatus for controlling frequency of a multi-channel transmitter

Publications (2)

Publication Number Publication Date
WO1996027948A2 WO1996027948A2 (en) 1996-09-12
WO1996027948A3 true WO1996027948A3 (en) 1996-12-05

Family

ID=23566004

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/002847 WO1996027948A2 (en) 1995-02-28 1996-02-28 Method and apparatus for controlling frequency of a multi-channel transmitter

Country Status (11)

Country Link
US (2) US5768693A (en)
EP (1) EP0872051B1 (en)
AP (1) AP809A (en)
AT (1) ATE227908T1 (en)
AU (1) AU706897B2 (en)
BG (1) BG63446B1 (en)
DE (1) DE69624838T2 (en)
NZ (1) NZ306032A (en)
RU (1) RU2183050C2 (en)
UA (1) UA42829C2 (en)
WO (1) WO1996027948A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768693A (en) * 1995-02-28 1998-06-16 Telecommunications Equipment Corporation Method and apparatus for controlling frequency of a multi-channel transmitter
JPH11340738A (en) * 1998-05-22 1999-12-10 Murata Mfg Co Ltd Oscillator and communication equipment
IT1305710B1 (en) * 1998-12-11 2001-05-15 Itelco S P A METHOD FOR THE TRANSMISSION OF MORE BROADCAST TYPE SIGNALS
US6452986B1 (en) 1999-05-17 2002-09-17 Cellnet Data Systems, Inc. Detector tolerant of frequency misalignment
US6677862B1 (en) 1999-05-17 2004-01-13 Schlumbergersema Inc. Transmitter tolerant to crystal variations
US6181258B1 (en) 1999-05-17 2001-01-30 Cellnet Data Systems, Inc. Receiver capable of parallel demodulation of messages
US6163276A (en) * 1999-05-17 2000-12-19 Cellnet Data Systems, Inc. System for remote data collection
US6477558B1 (en) 1999-05-17 2002-11-05 Schlumberger Resource Management Systems, Inc. System for performing load management
US6714089B2 (en) * 2002-05-29 2004-03-30 Xytrans, Inc. High frequency signal source and method of generating same using dielectric resonator oscillator (DRO) circuit
JP4843104B2 (en) * 2007-08-10 2011-12-21 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Multiplex transmission equipment with reduced coupling
JP2010008273A (en) * 2008-06-27 2010-01-14 Maspro Denkoh Corp Millimeter wave imaging apparatus

Citations (6)

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US3593182A (en) * 1969-04-16 1971-07-13 Motorola Inc Afc system for microwave energy sources
US3867706A (en) * 1973-11-08 1975-02-18 Frequency Sources Inc Frequency control and stabilization means and frequency discriminator
US4780691A (en) * 1987-08-03 1988-10-25 Ford Aerospace & Communications Corporation Dielectric resonator frequency discriminator for stabilizing oscillator frequency
EP0307595A1 (en) * 1987-09-11 1989-03-22 Siemens Aktiengesellschaft Circuit arrangement for generating two very near frequencies
US4910793A (en) * 1986-12-08 1990-03-20 Alsthom Two-way transmission system for ground/mobile station communications
EP0536835A1 (en) * 1991-10-09 1993-04-14 Philips Electronics Uk Limited Microwave oscillators and transmitters with frequency stabilization

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US3614640A (en) * 1970-01-27 1971-10-19 Us Navy Frequency discriminator using no inductive components
US3686574A (en) * 1970-08-19 1972-08-22 Hallicrafters Co Self-correcting afc system
US3787612A (en) * 1972-07-03 1974-01-22 Zenith Radio Corp Signal processing system for television receiver having acoustic surface wave devices for improved tuning and video demodulation
US3868606A (en) * 1973-09-28 1975-02-25 Westinghouse Electric Corp Q-multiplied crystal resonator for improved hf and vhf source stabilization
US4041416A (en) * 1976-10-22 1977-08-09 Bell Telephone Laboratories, Incorporated Method and apparatus for frequency stabilizing oscillators
JPS5915142Y2 (en) * 1977-03-11 1984-05-04 ヤマハ株式会社 Receiving machine
CA1112300A (en) * 1978-01-23 1981-11-10 Gerald J.P. Lo Circuit and method for reducing polarization crosstalk caused by rainfall
US4243949A (en) * 1978-11-17 1981-01-06 The United States Of America As Represented By The Secretary Of The Navy Frequency stabilization technique for microstrip oscillators
US4262355A (en) * 1979-05-11 1981-04-14 Rca Corporation System for limiting intermodulation distortion of talkspurt signals
CH621680B (en) * 1979-05-22 Suisse Horlogerie OSCILLATOR WITH TEMPERATURE COMPENSATION.
US4333062A (en) * 1979-12-27 1982-06-01 Matsushita Electric Industrial Co., Ltd. Temperature stabilized MIC solid-state oscillator
US4629999A (en) * 1983-12-27 1986-12-16 North American Philips Corp. Phase-locked loop capable of generating a plurality of stable frequency signals
FR2576724B1 (en) * 1985-01-29 1991-06-07 Alcatel Thomson Faisceaux MICROWAVE DISCRIMINATOR AND DEVICES FOR USE
US4712078A (en) * 1985-03-27 1987-12-08 The United States Of America As Represented By The Secretary Of The Air Force Dielectric resonator oscillators with digital temperature compensation
US4728907A (en) * 1986-12-04 1988-03-01 Eaton Corporation Frequency/temperature compensated millimeter wave oscillator
US4766398A (en) * 1987-04-30 1988-08-23 Motorola, Inc. Broadband temperature compensated microwave cavity oscillator
JP2621331B2 (en) * 1988-04-25 1997-06-18 松下電器産業株式会社 Millimeter-wave and sub-millimeter-wave oscillators
IT1236905B (en) * 1989-12-21 1993-04-26 SYSTEM FOR SETTING UP TRANSMITTERS IN LARGE CAPACITY DIGITAL RADIO LINKS
US5214787A (en) * 1990-08-31 1993-05-25 Karkota Jr Frank P Multiple audio channel broadcast system
US5220680A (en) * 1991-01-15 1993-06-15 Pactel Corporation Frequency signal generator apparatus and method for simulating interference in mobile communication systems
US5179725A (en) * 1991-03-29 1993-01-12 International Business Machines Voltage controlled oscillator with correction of tuning curve non-linearities
US5551070A (en) * 1993-01-28 1996-08-27 Telefonaktiebolaget Lm Ericsson Cartesian multicarrier feedback
US5535247A (en) * 1993-09-24 1996-07-09 Motorola, Inc. Frequency modifier for a transmitter
JPH07283743A (en) * 1994-04-12 1995-10-27 Fujitsu Ltd Multicarrier radio transmission device
US5768693A (en) * 1995-02-28 1998-06-16 Telecommunications Equipment Corporation Method and apparatus for controlling frequency of a multi-channel transmitter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593182A (en) * 1969-04-16 1971-07-13 Motorola Inc Afc system for microwave energy sources
US3867706A (en) * 1973-11-08 1975-02-18 Frequency Sources Inc Frequency control and stabilization means and frequency discriminator
US4910793A (en) * 1986-12-08 1990-03-20 Alsthom Two-way transmission system for ground/mobile station communications
US4780691A (en) * 1987-08-03 1988-10-25 Ford Aerospace & Communications Corporation Dielectric resonator frequency discriminator for stabilizing oscillator frequency
EP0307595A1 (en) * 1987-09-11 1989-03-22 Siemens Aktiengesellschaft Circuit arrangement for generating two very near frequencies
EP0536835A1 (en) * 1991-10-09 1993-04-14 Philips Electronics Uk Limited Microwave oscillators and transmitters with frequency stabilization

Also Published As

Publication number Publication date
US6081696A (en) 2000-06-27
RU2183050C2 (en) 2002-05-27
UA42829C2 (en) 2001-11-15
AP9701095A0 (en) 1997-10-31
BG101928A (en) 1998-12-30
US5768693A (en) 1998-06-16
EP0872051A2 (en) 1998-10-21
AU5418496A (en) 1996-09-23
DE69624838D1 (en) 2002-12-19
DE69624838T2 (en) 2003-09-18
NZ306032A (en) 1999-05-28
EP0872051B1 (en) 2002-11-13
ATE227908T1 (en) 2002-11-15
WO1996027948A2 (en) 1996-09-12
BG63446B1 (en) 2002-01-31
AU706897B2 (en) 1999-07-01
AP809A (en) 2000-02-04

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