CA1022632A - Phase-locked frequency synthesizer with means for restoring stability - Google Patents
Phase-locked frequency synthesizer with means for restoring stabilityInfo
- Publication number
- CA1022632A CA1022632A CA230,525A CA230525A CA1022632A CA 1022632 A CA1022632 A CA 1022632A CA 230525 A CA230525 A CA 230525A CA 1022632 A CA1022632 A CA 1022632A
- Authority
- CA
- Canada
- Prior art keywords
- phase
- frequency synthesizer
- locked frequency
- restoring stability
- restoring
- 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
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
- 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
- H03L7/185—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 a mixer in the loop
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US512537A US3921094A (en) | 1974-10-07 | 1974-10-07 | Phase-locked frequency synthesizer with means for restoring stability |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1022632A true CA1022632A (en) | 1977-12-13 |
Family
ID=24039519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA230,525A Expired CA1022632A (en) | 1974-10-07 | 1975-06-30 | Phase-locked frequency synthesizer with means for restoring stability |
Country Status (5)
Country | Link |
---|---|
US (1) | US3921094A (ja) |
JP (1) | JPS5164355A (ja) |
CA (1) | CA1022632A (ja) |
DE (1) | DE2543943A1 (ja) |
FR (1) | FR2287804A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4039752A (en) * | 1975-09-19 | 1977-08-02 | Matsushita Electric Industrial Co., Ltd. | Fm four channel stereo signal generator |
US4110694A (en) * | 1975-10-10 | 1978-08-29 | Warren A. Sturm | Channel number interface |
JPS5384666A (en) * | 1976-12-30 | 1978-07-26 | Alps Electric Co Ltd | Pll circuit |
US4068173A (en) * | 1977-01-03 | 1978-01-10 | Gte Automatic Electric Laboratories Incorporated | Frequency stabilized microwave signal source |
DE3130711C2 (de) * | 1981-08-03 | 1986-10-23 | Siemens AG, 1000 Berlin und 8000 München | Phasengeregelter Oszillator |
GB2103035B (en) * | 1981-08-04 | 1985-01-23 | Marconi Instruments Ltd | Frequency synthesisers |
CA2071421C (en) * | 1991-06-19 | 2000-08-08 | Yoshiaki Kumagai | Automatic frequency control circuit |
US5315623A (en) * | 1992-08-04 | 1994-05-24 | Ford Motor Company | Dual mode phase-locked loop |
JPH0832833A (ja) * | 1994-07-13 | 1996-02-02 | Rohm Co Ltd | ビデオシステムパルス生成回路 |
US6130602A (en) | 1996-05-13 | 2000-10-10 | Micron Technology, Inc. | Radio frequency data communications device |
US6941124B1 (en) | 1996-05-13 | 2005-09-06 | Micron Technology, Inc. | Method of speeding power-up of an amplifier, and amplifier |
US6459726B1 (en) * | 1998-04-24 | 2002-10-01 | Micron Technology, Inc. | Backscatter interrogators, communication systems and backscatter communication methods |
GB2413444B (en) * | 2004-04-21 | 2006-06-21 | Motorola Inc | Circuits for use in radio communications |
US20070013451A1 (en) * | 2004-04-21 | 2007-01-18 | Motorola, Inc. | Circuits for use in radio communications |
US10651861B2 (en) | 2018-10-15 | 2020-05-12 | Analog Devices, Inc. | Filterless digital phase-locked loop |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3069504A (en) * | 1959-10-19 | 1962-12-18 | Nippon Eiectric Company Ltd | Multiplex pulse code modulation system |
FR1452109A (fr) * | 1965-06-30 | 1966-02-25 | Materiel Telephonique | Oscillateur variable stabilisé |
US3586992A (en) * | 1969-10-09 | 1971-06-22 | Engineered Data Penpherals Cor | Clock generator with frequency control loop containing an oscillatory limiter |
US3806817A (en) * | 1970-12-07 | 1974-04-23 | Matsushita Electric Ind Co Ltd | Tuning system |
US3663762A (en) * | 1970-12-21 | 1972-05-16 | Bell Telephone Labor Inc | Mobile communication system |
US3723888A (en) * | 1971-06-14 | 1973-03-27 | Lorain Prod Corp | Phase responsive control circuit |
JPS4834407A (ja) * | 1971-09-07 | 1973-05-18 | ||
US3729688A (en) * | 1971-12-15 | 1973-04-24 | Motorola Inc | Oscillator with switchable filter control voltage input for rapidly switching to discrete frequency outputs |
-
1974
- 1974-10-07 US US512537A patent/US3921094A/en not_active Expired - Lifetime
-
1975
- 1975-06-30 CA CA230,525A patent/CA1022632A/en not_active Expired
- 1975-10-02 FR FR7530181A patent/FR2287804A1/fr active Granted
- 1975-10-02 DE DE19752543943 patent/DE2543943A1/de not_active Withdrawn
- 1975-10-06 JP JP50119879A patent/JPS5164355A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US3921094A (en) | 1975-11-18 |
FR2287804A1 (fr) | 1976-05-07 |
DE2543943A1 (de) | 1976-04-22 |
JPS5164355A (ja) | 1976-06-03 |
FR2287804B1 (ja) | 1978-05-19 |
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