GB1447507A

GB1447507A – Frequency stabilised oscillator circuit arrangements
– Google Patents

GB1447507A – Frequency stabilised oscillator circuit arrangements
– Google Patents
Frequency stabilised oscillator circuit arrangements

Info

Publication number
GB1447507A

GB1447507A
GB3876473A
GB3876473A
GB1447507A
GB 1447507 A
GB1447507 A
GB 1447507A
GB 3876473 A
GB3876473 A
GB 3876473A
GB 3876473 A
GB3876473 A
GB 3876473A
GB 1447507 A
GB1447507 A
GB 1447507A
Authority
GB
United Kingdom
Prior art keywords
oscillator
stages
controlled
frequency
switching
Prior art date
1972-09-22
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

Application number
GB3876473A
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.)

Siemens AG

Original Assignee
Siemens AG
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.)
1972-09-22
Filing date
1973-08-16
Publication date
1976-08-25

1973-08-16
Application filed by Siemens AG
filed
Critical
Siemens AG

1976-08-25
Publication of GB1447507A
publication
Critical
patent/GB1447507A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop

H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop

H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop

H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number

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

H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted

H03L7/141—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted the phase-locked loop controlling several oscillators in turn

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

H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop

H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop

H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division

H03L7/199—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division with reset of the frequency divider or the counter, e.g. for assuring initial synchronisation

Abstract

1447507 AFC systems SIEMENS AG 16 Aug 1973 [22 Sept 1972] 38764/73 Heading H3A A cricuit comprises two controlled oscillator stages 4, 41, and a switching arrangement S 3 for periodically switching between the outputs of the two stages wherein, when one of the oscillator stages is free-running for a time interval to supply an output to a load at 5, the other is frequency stabilized for a terminal part of the said time interval by phase comparing at 2 a reduced frequency component of the oscillator with the output of a reference oscillator 1 to supply an error control voltage to a varactor diode in the oscillator stage. The controlled and reference oscillator outputs may be applied via an adjustable frequency converter or divider to the phase discriminator 2. The controlled oscillators may operate at different frequencies as in Fig. 2 or at the same frequency (Fig. 3, not shown) in which case switching is done at a slow rate as to minimize incidental phase modulation.

GB3876473A
1972-09-22
1973-08-16
Frequency stabilised oscillator circuit arrangements

Expired

GB1447507A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

DE2246487A

DE2246487C2
(en)

1972-09-22
1972-09-22

Vibration generator for particularly short electromagnetic waves

Publications (1)

Publication Number
Publication Date

GB1447507A
true

GB1447507A
(en)

1976-08-25

Family
ID=5857031
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB3876473A
Expired

GB1447507A
(en)

1972-09-22
1973-08-16
Frequency stabilised oscillator circuit arrangements

Country Status (17)

Country
Link

US
(1)

US3899746A
(en)

JP
(2)

JPS4971853A
(en)

AT
(1)

AT336676B
(en)

AU
(1)

AU468359B2
(en)

BE
(1)

BE805177A
(en)

CA
(1)

CA979984A
(en)

DE
(1)

DE2246487C2
(en)

DK
(1)

DK142439C
(en)

FR
(1)

FR2200677B1
(en)

GB
(1)

GB1447507A
(en)

IT
(1)

IT993280B
(en)

LU
(1)

LU68458A1
(en)

NL
(1)

NL154890B
(en)

NO
(1)

NO136230C
(en)

SE
(1)

SE384112B
(en)

TR
(1)

TR17685A
(en)

YU
(1)

YU243473A
(en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE2549955C2
(en)

*

1975-11-07
1977-10-27
Siemens AG, 1000 Berlin und 8000 München

Phase tracking control loop

US4131861A
(en)

*

1977-12-30
1978-12-26
International Business Machines Corporation
Variable frequency oscillator system including two matched oscillators controlled by a phase locked loop

US4286228A
(en)

*

1979-05-31
1981-08-25
Westinghouse Electric Corp.
Frequency spectrum noise generator

US4259744A
(en)

*

1979-08-27
1981-03-31
The United States Of America As Represented By The Secretary Of The Navy
Signal generator

GB2131638B
(en)

*

1982-12-02
1986-03-12
Ferranti Plc
Microwave frequency generator

US4626797A
(en)

*

1983-10-14
1986-12-02
Canon Kabushiki Kaisha
Phase locked loop providing three-level control signal to VCO

US4629999A
(en)

*

1983-12-27
1986-12-16
North American Philips Corp.
Phase-locked loop capable of generating a plurality of stable frequency signals

US4543541A
(en)

*

1984-04-16
1985-09-24
Phillips Petroleum Company
FSK modulation using switched outputs of two oscillators

FR2612028B1
(en)

*

1987-03-05
1991-07-05
Aerospatiale

SYSTEM FOR THE GENERATION OF MICROWAVE JUMPS

US4829301A
(en)

*

1987-11-13
1989-05-09
Ford Aerospace & Communications Corporation
Digital first order hold circuit

US5142247A
(en)

*

1991-08-06
1992-08-25
Compaq Computer Corporation
Multiple frequency phase-locked loop clock generator with stable transitions between frequencies

GB2295930B
(en)

*

1994-12-06
1999-11-24
Motorola Ltd
Method and apparatus for implementing frequency hopping in a TDMA system

US5933058A
(en)

*

1996-11-22
1999-08-03
Zoran Corporation
Self-tuning clock recovery phase-locked loop circuit

WO1999014854A2
(en)

*

1997-09-15
1999-03-25
Koninklijke Philips Electronics N.V.
A high frequency amplifier, and a communication receiver or transceiver

US6069850A
(en)

*

1998-03-18
2000-05-30
International Business Machines Corporation
Method and apparatus for driving a battery-backed up clock while a system is powered-down

US6311050B1
(en)

1998-05-29
2001-10-30
Silicon Laboratories, Inc.
Single integrated circuit phase locked loop for synthesizing high-frequency signals for wireless communications and method for operating same

US6167245A
(en)

*

1998-05-29
2000-12-26
Silicon Laboratories, Inc.
Method and apparatus for operating a PLL with a phase detector/sample hold circuit for synthesizing high-frequency signals for wireless communications

US6574288B1
(en)

1998-05-29
2003-06-03
Silicon Laboratories Inc.
Method and apparatus for adjusting a digital control word to tune synthesized high-frequency signals for wireless communications

US6327463B1
(en)

1998-05-29
2001-12-04
Silicon Laboratories, Inc.
Method and apparatus for generating a variable capacitance for synthesizing high-frequency signals for wireless communications

US6304146B1
(en)

*

1998-05-29
2001-10-16
Silicon Laboratories, Inc.
Method and apparatus for synthesizing dual band high-frequency signals for wireless communications

US7092675B2
(en)

*

1998-05-29
2006-08-15
Silicon Laboratories
Apparatus and methods for generating radio frequencies in communication circuitry using multiple control signals

US7221921B2
(en)

*

1998-05-29
2007-05-22
Silicon Laboratories
Partitioning of radio-frequency apparatus

US6993314B2
(en)

1998-05-29
2006-01-31
Silicon Laboratories Inc.
Apparatus for generating multiple radio frequencies in communication circuitry and associated methods

US6137372A
(en)

*

1998-05-29
2000-10-24
Silicon Laboratories Inc.
Method and apparatus for providing coarse and fine tuning control for synthesizing high-frequency signals for wireless communications

US6308055B1
(en)

1998-05-29
2001-10-23
Silicon Laboratories, Inc.
Method and apparatus for operating a PLL for synthesizing high-frequency signals for wireless communications

US7242912B2
(en)

*

1998-05-29
2007-07-10
Silicon Laboratories Inc.
Partitioning of radio-frequency apparatus

US6226506B1
(en)

1998-05-29
2001-05-01
Silicon Laboratories, Inc.
Method and apparatus for eliminating floating voltage nodes within a discreetly variable capacitance used for synthesizing high-frequency signals for wireless communications

US6150891A
(en)

1998-05-29
2000-11-21
Silicon Laboratories, Inc.
PLL synthesizer having phase shifted control signals

US6233441B1
(en)

1998-05-29
2001-05-15
Silicon Laboratories, Inc.
Method and apparatus for generating a discretely variable capacitance for synthesizing high-frequency signals for wireless communications

US7035607B2
(en)

*

1998-05-29
2006-04-25
Silicon Laboratories Inc.
Systems and methods for providing an adjustable reference signal to RF circuitry

US6147567A
(en)

*

1998-05-29
2000-11-14
Silicon Laboratories Inc.
Method and apparatus for providing analog and digitally controlled capacitances for synthesizing high-frequency signals for wireless communications

DE69838212T3
(en)

†

1998-07-28
2019-03-14
Ipcom Gmbh & Co. Kg

mobile phone

US6323735B1
(en)

2000-05-25
2001-11-27
Silicon Laboratories, Inc.
Method and apparatus for synthesizing high-frequency signals utilizing on-package oscillator circuit inductors

US7747237B2
(en)

*

2004-04-09
2010-06-29
Skyworks Solutions, Inc.
High agility frequency synthesizer phase-locked loop

JP6003453B2
(en)

*

2012-09-21
2016-10-05
富士通株式会社

Temperature sensor and temperature compensated oscillator

Family Cites Families (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3348164A
(en)

*

1966-06-28
1967-10-17
Brunins Guntis
Afc for diverse frequency sources

US3729688A
(en)

*

1971-12-15
1973-04-24
Motorola Inc
Oscillator with switchable filter control voltage input for rapidly switching to discrete frequency outputs

1972

1972-09-22
DE
DE2246487A
patent/DE2246487C2/en
not_active
Expired

1973

1973-08-16
GB
GB3876473A
patent/GB1447507A/en
not_active
Expired

1973-08-31
CA
CA180,136A
patent/CA979984A/en
not_active
Expired

1973-09-07
AU
AU60100/73A
patent/AU468359B2/en
not_active
Expired

1973-09-11
AT
AT787273A
patent/AT336676B/en
active

1973-09-12
YU
YU02434/73A
patent/YU243473A/en
unknown

1973-09-14
US
US397401A
patent/US3899746A/en
not_active
Expired – Lifetime

1973-09-17
NO
NO3617/73A
patent/NO136230C/en
unknown

1973-09-18
IT
IT29031/73A
patent/IT993280B/en
active

1973-09-20
JP
JP48106461A
patent/JPS4971853A/ja
active
Pending

1973-09-20
FR
FR7333752A
patent/FR2200677B1/fr
not_active
Expired

1973-09-20
DK
DK515473A
patent/DK142439C/en
active

1973-09-20
TR
TR17685A
patent/TR17685A/en
unknown

1973-09-20
LU
LU68458A
patent/LU68458A1/xx
unknown

1973-09-21
NL
NL737313083A
patent/NL154890B/en
not_active
IP Right Cessation

1973-09-21
BE
BE135925A
patent/BE805177A/en
unknown

1973-09-21
SE
SE7312881A
patent/SE384112B/en
unknown

1978

1978-02-20
JP
JP1978020716U
patent/JPS53141943U/ja
active
Pending

Also Published As

Publication number
Publication date

JPS53141943U
(en)

1978-11-09

SE384112B
(en)

1976-04-12

YU243473A
(en)

1982-05-31

AU468359B2
(en)

1976-01-08

CA979984A
(en)

1975-12-16

ATA787273A
(en)

1976-09-15

LU68458A1
(en)

1973-11-26

NL154890B
(en)

1977-10-17

FR2200677A1
(en)

1974-04-19

US3899746A
(en)

1975-08-12

TR17685A
(en)

1975-07-23

NL7313083A
(en)

1974-03-26

IT993280B
(en)

1975-09-30

DE2246487A1
(en)

1974-03-28

DK142439C
(en)

1981-03-23

NO136230B
(en)

1977-04-25

AT336676B
(en)

1977-05-25

DK142439B
(en)

1980-10-27

NO136230C
(en)

1977-08-03

FR2200677B1
(en)

1976-10-01

JPS4971853A
(en)

1974-07-11

DE2246487C2
(en)

1974-10-24

BE805177A
(en)

1974-03-21

AU6010073A
(en)

1975-03-13

DE2246487B1
(en)

1974-03-28

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Legal Events

Date
Code
Title
Description

1977-01-06
PS
Patent sealed [section 19, patents act 1949]

1982-03-17
PCNP
Patent ceased through non-payment of renewal fee

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