GB2267401B - Frequency synthesizer - Google Patents

Frequency synthesizer

Info

Publication number: GB2267401B
Authority: GB; United Kingdom
Prior art keywords: frequency synthesizer; synthesizer; frequency
Prior art date: 1985-06-22
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 - Fee Related

Application number

GB8515856A

Other versions

GB2267401A (en

Inventor

William J Tanis

Ning Hsing Lu

Alan Neil Schenberg

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.)

International Standard Electric Corp

Original Assignee

International Standard Electric Corp

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.)

1985-06-22

Filing date

1985-06-22

Publication date

1994-04-20

1985-06-22 Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp

1985-06-22 Priority to GB8515856A priority Critical patent/GB2267401B/en

1985-11-02 Priority to DE19853538858 priority patent/DE3538858A1/en

1993-12-01 Publication of GB2267401A publication Critical patent/GB2267401A/en

1994-04-20 Application granted granted Critical

1994-04-20 Publication of GB2267401B publication Critical patent/GB2267401B/en

2005-06-22 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/091—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector using a sampling device
- 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
- H03L7/1974—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 for fractional frequency division
- 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
- H03L7/187—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 using means for coarse tuning the voltage controlled oscillator of the loop

GB8515856A 1985-06-22 1985-06-22 Frequency synthesizer Expired - Fee Related GB2267401B (en)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
GB8515856A GB2267401B (en)	1985-06-22	1985-06-22	Frequency synthesizer
DE19853538858 DE3538858A1 (en)	1985-06-22	1985-11-02	PLL frequency synthesizer

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB8515856A GB2267401B (en)	1985-06-22	1985-06-22	Frequency synthesizer
DE19853538858 DE3538858A1 (en)	1985-06-22	1985-11-02	PLL frequency synthesizer

Publications (2)

Publication Number	Publication Date
GB2267401A GB2267401A (en)	1993-12-01
GB2267401B true GB2267401B (en)	1994-04-20

Family

ID=25837476

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB8515856A Expired - Fee Related GB2267401B (en)	1985-06-22	1985-06-22	Frequency synthesizer

Country Status (2)

Country	Link
DE (1)	DE3538858A1 (en)
GB (1)	GB2267401B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6577269B2 (en)	2000-08-16	2003-06-10	Raytheon Company	Radar detection method and apparatus
US6611227B1 (en)	2002-08-08	2003-08-26	Raytheon Company	Automotive side object detection sensor blockage detection system and related techniques
US6675094B2 (en)	2000-09-08	2004-01-06	Raytheon Company	Path prediction system and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH08251026A (en) *	1995-03-14	1996-09-27	Sony Corp	Integrated circuits and transceivers
US7973701B2 (en)	2008-03-31	2011-07-05	Valeo Radar Systems, Inc.	Automotive radar sensor blockage detection system and related techniques
US8618854B2 (en)	2010-10-15	2013-12-31	Qualcomm Incorporated	Adaptive clock switching to capture asynchronous data within a phase-to-digital converter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3555446A (en) *	1969-01-17	1971-01-12	Dana Lab Inc	Frequency synthesizer
US3582810A (en) *	1969-05-05	1971-06-01	Dana Lab Inc	Frequency synthesizer system
US3959737A (en) *	1974-11-18	1976-05-25	Engelmann Microwave Co.	Frequency synthesizer having fractional frequency divider in phase-locked loop
GB1560233A (en) *	1977-02-02	1980-01-30	Marconi Co Ltd	Frequency synthesisers
GB2026268B (en) *	1978-07-22	1982-07-28	Racal Communcations Equipment	Frequency synthesizers
GB2097206B (en) *	1981-04-21	1985-03-13	Marconi Co Ltd	Frequency synthesisers

1985
- 1985-06-22 GB GB8515856A patent/GB2267401B/en not_active Expired - Fee Related
- 1985-11-02 DE DE19853538858 patent/DE3538858A1/en not_active Ceased

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6577269B2 (en)	2000-08-16	2003-06-10	Raytheon Company	Radar detection method and apparatus
US6864831B2 (en)	2000-08-16	2005-03-08	Raytheon Company	Radar detection method and apparatus
US6675094B2 (en)	2000-09-08	2004-01-06	Raytheon Company	Path prediction system and method
US6611227B1 (en)	2002-08-08	2003-08-26	Raytheon Company	Automotive side object detection sensor blockage detection system and related techniques

Also Published As

Publication number	Publication date
GB2267401A (en)	1993-12-01
DE3538858A1 (en)	1994-05-26

Publication	Publication Date	Title
EP0202072A3 (en)	1988-07-20	Frequency synthesizer
GB2172760B (en)	1988-05-18	Fractional-n frequency
GB2173659B (en)	1988-06-08	Frequency synthesisers
GB2172759B (en)	1988-04-13	Fractional-n frequency
GB8717221D0 (en)	1987-08-26	Frequency synthesizer
EP0272938A3 (en)	1990-03-07	Frequency synthesizer
GB8720794D0 (en)	1987-10-14	Frequency synthesizer
IL89833A (en)	1992-07-15	Frequency synthesizer
EP0172560A3 (en)	1988-01-07	Variable frequency synthesizer
GB2199457B (en)	1990-09-05	Frequency doubler
SG119692G (en)	1993-02-19	Pll frequency synthesizer
GB2160726B (en)	1987-09-16	Frequency synthesizer
GB8627430D0 (en)	1986-12-17	Frequency synthesizer
GB8521075D0 (en)	1985-09-25	Frequency synthesizer stage
EP0202652A3 (en)	1988-12-07	Microwave oscillator
GB8727564D0 (en)	1988-04-27	Frequency synthesizer
GB2189359A (en)	1987-10-21	Local oscillator
GB2183947B (en)	1990-07-25	Frequency synthesiser
GB2267401B (en)	1994-04-20	Frequency synthesizer
GB2176923B (en)	1989-01-05	Frequency dividing arrangements
GB2156613B (en)	1987-09-03	Frequency synthesiser
GB2160377B (en)	1987-08-19	Frequency synthesizers
GB2228380B (en)	1992-07-08	Frequency synthesizer
BG49036A1 (en)	1991-07-15	Frequency synthesizer
DE3664548D1 (en)	1989-08-24	Microwave oscillator

Legal Events

Date	Code	Title	Description
1998-02-11	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19970622