GB1172650A - A Digital Frequency Synthesizer Eliminating High Speed Counters. - Google Patents
A Digital Frequency Synthesizer Eliminating High Speed Counters.Info
- Publication number
- GB1172650A GB1172650A GB33062/68A GB3306268A GB1172650A GB 1172650 A GB1172650 A GB 1172650A GB 33062/68 A GB33062/68 A GB 33062/68A GB 3306268 A GB3306268 A GB 3306268A GB 1172650 A GB1172650 A GB 1172650A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- phase detector
- output
- oscillator
- responsive
- 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
- H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
- H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66299167A | 1967-08-24 | 1967-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1172650A true GB1172650A (en) | 1969-12-03 |
Family
ID=24660056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33062/68A Expired GB1172650A (en) | 1967-08-24 | 1968-07-11 | A Digital Frequency Synthesizer Eliminating High Speed Counters. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3448401A (enExample) |
| DE (1) | DE1766830B1 (enExample) |
| FR (1) | FR1581226A (enExample) |
| GB (1) | GB1172650A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3837246A1 (de) * | 1988-10-28 | 1990-05-03 | Siemens Ag | Frequenzgenerator |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1314462A (en) * | 1970-04-28 | 1973-04-26 | Sperry Rand Corp | Signal generators |
| US3777271A (en) * | 1971-10-04 | 1973-12-04 | Cutler Hammer Inc | Generation of microwave frequency combs with narrow line spacing |
| US3972818A (en) * | 1974-08-22 | 1976-08-03 | General Atomic Company | Blood filter using glassy carbon fibers |
| GB1564375A (en) * | 1977-09-07 | 1980-04-10 | Marconi Co Ltd | Frequency generators |
| JPS5487008A (en) * | 1977-12-22 | 1979-07-11 | Alps Electric Co Ltd | Pll channel selector |
| WO2007068283A1 (en) * | 2005-12-12 | 2007-06-21 | Semtech Neuchâtel SA | Sensor interface |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2964714A (en) * | 1959-04-02 | 1960-12-13 | Jakubowics Edward | Automatic frequency control system |
| AT245052B (de) * | 1962-11-30 | 1966-02-10 | Philips Nv | Merhkanalgenerator |
-
1967
- 1967-08-24 US US662991A patent/US3448401A/en not_active Expired - Lifetime
-
1968
- 1968-07-11 GB GB33062/68A patent/GB1172650A/en not_active Expired
- 1968-07-25 DE DE19681766830 patent/DE1766830B1/de not_active Withdrawn
- 1968-08-20 FR FR1581226D patent/FR1581226A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3837246A1 (de) * | 1988-10-28 | 1990-05-03 | Siemens Ag | Frequenzgenerator |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1581226A (enExample) | 1969-09-12 |
| US3448401A (en) | 1969-06-03 |
| DE1766830B1 (de) | 1971-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |