GB2244877B - Automatically self-calibrating oscillators in heterodyned radio receivers - Google Patents

Automatically self-calibrating oscillators in heterodyned radio receivers

Info

Publication number
GB2244877B
GB2244877B GB9018896A GB9018896A GB2244877B GB 2244877 B GB2244877 B GB 2244877B GB 9018896 A GB9018896 A GB 9018896A GB 9018896 A GB9018896 A GB 9018896A GB 2244877 B GB2244877 B GB 2244877B
Authority
GB
United Kingdom
Prior art keywords
radio receivers
automatically self
heterodyned
oscillators
calibrating
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.)
Expired - Lifetime
Application number
GB9018896A
Other versions
GB2244877A (en
GB9018896D0 (en
Inventor
Shlomo Berliner
Shmuel Barman
Shmuel Riych
Zalman Schwartzman
Yair Shapira
Alex Shani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Israel Ltd
Original Assignee
Motorola Israel Ltd
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 Motorola Israel Ltd filed Critical Motorola Israel Ltd
Priority to GB9018896A priority Critical patent/GB2244877B/en
Publication of GB9018896D0 publication Critical patent/GB9018896D0/en
Publication of GB2244877A publication Critical patent/GB2244877A/en
Application granted granted Critical
Publication of GB2244877B publication Critical patent/GB2244877B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • H03L1/023—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using voltage variable capacitance diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
GB9018896A 1988-05-28 1990-08-30 Automatically self-calibrating oscillators in heterodyned radio receivers Expired - Lifetime GB2244877B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9018896A GB2244877B (en) 1988-05-28 1990-08-30 Automatically self-calibrating oscillators in heterodyned radio receivers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8812773A GB2220317B (en) 1988-05-28 1988-05-28 Automatically self-calibrating oscillators in heterodyned radio receivers
GB9018896A GB2244877B (en) 1988-05-28 1990-08-30 Automatically self-calibrating oscillators in heterodyned radio receivers

Publications (3)

Publication Number Publication Date
GB9018896D0 GB9018896D0 (en) 1990-10-17
GB2244877A GB2244877A (en) 1991-12-11
GB2244877B true GB2244877B (en) 1992-07-22

Family

ID=10637774

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8812773A Expired - Lifetime GB2220317B (en) 1988-05-28 1988-05-28 Automatically self-calibrating oscillators in heterodyned radio receivers
GB9018896A Expired - Lifetime GB2244877B (en) 1988-05-28 1990-08-30 Automatically self-calibrating oscillators in heterodyned radio receivers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8812773A Expired - Lifetime GB2220317B (en) 1988-05-28 1988-05-28 Automatically self-calibrating oscillators in heterodyned radio receivers

Country Status (6)

Country Link
JP (1) JP2814638B2 (en)
KR (1) KR900702657A (en)
GB (2) GB2220317B (en)
HK (2) HK87595A (en)
SG (2) SG22795G (en)
WO (1) WO1989011756A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4209843A1 (en) * 1992-03-26 1993-11-18 Telefunken Microelectron Temp. compensated oscillator circuit - stores tuning element setting signal and corresponding temp. signal during calibration phase for subsequent provision of correction signal
GB2273405B (en) * 1992-12-10 1996-12-04 Motorola Israel Ltd A communications device and method of calibration therefor
JP2689909B2 (en) * 1994-07-25 1997-12-10 日本電気株式会社 Frequency control circuit
US6606009B2 (en) * 2001-03-08 2003-08-12 Schlumberger Technology Corporation Self-compensating ovenized clock adapted for wellbore applications
GB0110497D0 (en) 2001-04-28 2001-06-20 Mitel Semiconductor Ltd Tuner and method of aligning a tuner

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2007049A (en) * 1977-10-26 1979-05-10 Philips Nv Receiver having a frequency synthesising circuit
GB2064248A (en) * 1979-11-21 1981-06-10 Philcom Electronics Blackburn Temperature compensated crystal oscillators
GB1600393A (en) * 1977-09-23 1981-10-14 Racal Res Ltd Correcting oscillator output frequency for temperature variations
US4373209A (en) * 1980-03-10 1983-02-08 Trio Kabushiki Kaisha Method and circuitry for controlling the intermediate frequency of an FM receiver to lessen phase distortion
EP0182982A1 (en) * 1984-11-12 1986-06-04 Hagenuk Gmbh Oscillator circuit
WO1986005637A1 (en) * 1985-03-21 1986-09-25 H. U. C. Elektronik Hansen & Co. Circuit for automatic tuning of sharpness in fm receivers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856320A1 (en) * 1978-12-27 1980-07-17 Roehm Gmbh ENZYMATIC STICKING PROCESS
JPS5977259A (en) * 1982-10-25 1984-05-02 Matsushita Electric Ind Co Ltd Solar heat collector
JPS61220527A (en) * 1985-03-26 1986-09-30 Fujitsu Ltd Crystal oscillator
JPS623527A (en) * 1985-06-29 1987-01-09 Nec Corp Piezoelectric oscillator with constant temperature oven
DE3526363A1 (en) 1985-07-19 1987-01-22 Siemens Ag METHOD FOR PRODUCING AN ADJUSTABLE FREQUENCY GENERATOR
JPS62116003A (en) * 1985-11-15 1987-05-27 Fujitsu Ltd Oscillator
US4746879A (en) * 1986-08-28 1988-05-24 Ma John Y Digitally temperature compensated voltage-controlled oscillator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1600393A (en) * 1977-09-23 1981-10-14 Racal Res Ltd Correcting oscillator output frequency for temperature variations
GB2007049A (en) * 1977-10-26 1979-05-10 Philips Nv Receiver having a frequency synthesising circuit
GB2064248A (en) * 1979-11-21 1981-06-10 Philcom Electronics Blackburn Temperature compensated crystal oscillators
US4373209A (en) * 1980-03-10 1983-02-08 Trio Kabushiki Kaisha Method and circuitry for controlling the intermediate frequency of an FM receiver to lessen phase distortion
EP0182982A1 (en) * 1984-11-12 1986-06-04 Hagenuk Gmbh Oscillator circuit
WO1986005637A1 (en) * 1985-03-21 1986-09-25 H. U. C. Elektronik Hansen & Co. Circuit for automatic tuning of sharpness in fm receivers

Also Published As

Publication number Publication date
KR900702657A (en) 1990-12-08
JP2814638B2 (en) 1998-10-27
SG22795G (en) 1995-06-16
GB2220317B (en) 1992-07-22
SG22895G (en) 1995-06-16
WO1989011756A1 (en) 1989-11-30
GB2220317A (en) 1990-01-04
GB8812773D0 (en) 1988-06-29
GB2244877A (en) 1991-12-11
GB9018896D0 (en) 1990-10-17
HK87595A (en) 1995-06-09
JPH04504035A (en) 1992-07-16
HK87695A (en) 1995-06-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990528