FR2333247B1 - - Google Patents
Info
- Publication number
- FR2333247B1 FR2333247B1 FR7536003A FR7536003A FR2333247B1 FR 2333247 B1 FR2333247 B1 FR 2333247B1 FR 7536003 A FR7536003 A FR 7536003A FR 7536003 A FR7536003 A FR 7536003A FR 2333247 B1 FR2333247 B1 FR 2333247B1
- Authority
- FR
- France
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/005—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing phase or frequency of 2 mutually independent oscillations in demodulators)
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manipulation Of Pulses (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7536003A FR2333247A1 (fr) | 1975-11-25 | 1975-11-25 | Circuit de comparaison de frequences et dispositif de selection comportant un tel circuit |
| US05/743,333 US4059804A (en) | 1975-11-25 | 1976-11-19 | Frequency comparison circuit |
| GB48676/76A GB1549678A (en) | 1975-11-25 | 1976-11-22 | Frequency comparison circuit |
| NL7612966A NL7612966A (nl) | 1975-11-25 | 1976-11-22 | Frequentievergelijkingscircuit. |
| SE7613093A SE408111B (sv) | 1975-11-25 | 1976-11-24 | Frekvenskomparatorkrets |
| DK529476A DK154383C (da) | 1975-11-25 | 1976-11-24 | Kredsloeb til sammenligning af frekvenser |
| JP51141727A JPS5265483A (en) | 1975-11-25 | 1976-11-25 | Frequency comparison circuit |
| DE2653501A DE2653501C3 (de) | 1975-11-25 | 1976-11-25 | Frequenzvergleichsschaltung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7536003A FR2333247A1 (fr) | 1975-11-25 | 1975-11-25 | Circuit de comparaison de frequences et dispositif de selection comportant un tel circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2333247A1 FR2333247A1 (fr) | 1977-06-24 |
| FR2333247B1 true FR2333247B1 ( ) | 1981-04-10 |
Family
ID=9162861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7536003A Granted FR2333247A1 (fr) | 1975-11-25 | 1975-11-25 | Circuit de comparaison de frequences et dispositif de selection comportant un tel circuit |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4059804A ( ) |
| JP (1) | JPS5265483A ( ) |
| DE (1) | DE2653501C3 ( ) |
| DK (1) | DK154383C ( ) |
| FR (1) | FR2333247A1 ( ) |
| GB (1) | GB1549678A ( ) |
| NL (1) | NL7612966A ( ) |
| SE (1) | SE408111B ( ) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4216463A (en) * | 1978-08-10 | 1980-08-05 | Motorola, Inc. | Programmable digital tone detector |
| DE3162076D1 (en) * | 1981-03-09 | 1984-03-08 | Itt Ind Gmbh Deutsche | Digital circuit delivering a binary signal whenever two signals have a predetermined frequency ratio, and its use in colour television receivers |
| SE526369C2 (sv) * | 2003-10-30 | 2005-08-30 | Infineon Technologies Ag | Komparator |
| US11171624B2 (en) * | 2018-12-26 | 2021-11-09 | Texas Instruments Incorporated | Voltage sensor device based on a tunable bulk acoustic wave (BAW) resonator |
| RU2726882C1 (ru) * | 2019-10-30 | 2020-07-16 | Акционерное общество "Информационные спутниковые системы"им. академика М.Ф.Решетнева" | Цифровая схема сравнения частот |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3200340A (en) * | 1962-11-29 | 1965-08-10 | Ampex | Synchronization monitor |
| US3626307A (en) * | 1969-02-14 | 1971-12-07 | Iwasaki Tsushinki Kaisha A K A | Counting system for measuring a difference between frequencies of two signals |
| US3735324A (en) * | 1971-12-02 | 1973-05-22 | Us Navy | Digital frequency discriminator |
| US3956705A (en) * | 1974-03-15 | 1976-05-11 | Sun Oil Company Of Pennsylvania | Pulse rate comparison circuit |
-
1975
- 1975-11-25 FR FR7536003A patent/FR2333247A1/fr active Granted
-
1976
- 1976-11-19 US US05/743,333 patent/US4059804A/en not_active Expired - Lifetime
- 1976-11-22 NL NL7612966A patent/NL7612966A/xx not_active Application Discontinuation
- 1976-11-22 GB GB48676/76A patent/GB1549678A/en not_active Expired
- 1976-11-24 DK DK529476A patent/DK154383C/da active
- 1976-11-24 SE SE7613093A patent/SE408111B/xx not_active IP Right Cessation
- 1976-11-25 DE DE2653501A patent/DE2653501C3/de not_active Expired
- 1976-11-25 JP JP51141727A patent/JPS5265483A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2653501C3 (de) | 1980-12-11 |
| SE408111B (sv) | 1979-05-14 |
| DE2653501B2 (de) | 1980-04-17 |
| DK529476A (da) | 1977-05-26 |
| DE2653501A1 (de) | 1977-05-26 |
| NL7612966A (nl) | 1977-05-27 |
| JPS5265483A (en) | 1977-05-30 |
| JPS5619916B2 ( ) | 1981-05-11 |
| FR2333247A1 (fr) | 1977-06-24 |
| DK154383C (da) | 1989-04-17 |
| SE7613093L (sv) | 1977-05-25 |
| GB1549678A (en) | 1979-08-08 |
| DK154383B (da) | 1988-11-07 |
| US4059804A (en) | 1977-11-22 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |