GB1349640A - Device for processing a frequency-modulated wave - Google Patents
Device for processing a frequency-modulated waveInfo
- Publication number
- GB1349640A GB1349640A GB961073A GB961073A GB1349640A GB 1349640 A GB1349640 A GB 1349640A GB 961073 A GB961073 A GB 961073A GB 961073 A GB961073 A GB 961073A GB 1349640 A GB1349640 A GB 1349640A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oscillator
- signal
- frequency
- processing
- demodulator
- 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
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/50—Amplitude modulation by converting angle modulation to amplitude modulation
Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Amplitude Modulation (AREA)
- Superheterodyne Receivers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7206662A FR2173688B1 (US08177716-20120515-C00003.png) | 1972-02-28 | 1972-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1349640A true GB1349640A (en) | 1974-04-10 |
Family
ID=9094230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB961073A Expired GB1349640A (en) | 1972-02-28 | 1973-02-27 | Device for processing a frequency-modulated wave |
Country Status (11)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596524B2 (ja) * | 1974-08-14 | 1984-02-13 | ソニー株式会社 | Ｆｍ−ａｍ変換装置 |
| DE3124963A1 (de) * | 1981-06-25 | 1983-01-20 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Anordnung zur demodulation eines frequenzmodulierten eingangssignals |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB556208A (en) * | 1941-04-25 | 1943-09-24 | Standard Telephones Cables Ltd | Arrangement for conversion of frequency modulation to phase modulation and the application thereof to the production of a frequency modulated wave from a frequency stable oscillator |
| US2976491A (en) * | 1958-05-21 | 1961-03-21 | Raytheon Co | Circuit responsive to amplitude and phase modulated wave and converting amplitude modulation into secondary phase modulation |
| NL235487A (US08177716-20120515-C00003.png) * | 1959-01-26 | 1964-02-25 | ||
| DE1200891B (de) * | 1962-04-09 | 1965-09-16 | Pierre Brossard | Demodulator fuer frequenzmodulierte elektrische Hochfrequenzschwingungen |
| BE631621A (US08177716-20120515-C00003.png) * | 1962-05-02 | |||
| FR1388796A (fr) * | 1963-12-03 | 1965-02-12 | Cft Comp Fse Television | Perfectionnements aux dispositifs de conversion d'une onde modulée en fréquence |
| US3387220A (en) * | 1965-02-23 | 1968-06-04 | Automatic Elect Lab | Apparatus and method for synchronously demodulating frequency modulated differentially coherent duobinary signals |
-
0
- BE BE795892D patent/BE795892A/xx not_active IP Right Cessation
-
1972
- 1972-02-28 FR FR7206662A patent/FR2173688B1/fr not_active Expired
-
1973
- 1973-01-25 NL NLAANVRAGE7301087,A patent/NL174604C/xx not_active IP Right Cessation
- 1973-01-31 DE DE2304692A patent/DE2304692C2/de not_active Expired
- 1973-02-21 IT IT20625/73A patent/IT979307B/it active
- 1973-02-23 US US00335299A patent/US3813617A/en not_active Expired - Lifetime
- 1973-02-26 CH CH273873A patent/CH570073A5/xx not_active IP Right Cessation
- 1973-02-26 SE SE7302641A patent/SE394062B/xx unknown
- 1973-02-26 CA CA164,586A patent/CA1000372A/en not_active Expired
- 1973-02-27 JP JP48023675A patent/JPS5740681B2/ja not_active Expired
- 1973-02-27 GB GB961073A patent/GB1349640A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE795892A (fr) | 1973-06-18 |
| US3813617A (en) | 1974-05-28 |
| DE2304692A1 (de) | 1973-09-13 |
| NL174604B (nl) | 1984-02-01 |
| NL7301087A (US08177716-20120515-C00003.png) | 1973-08-30 |
| JPS48101864A (US08177716-20120515-C00003.png) | 1973-12-21 |
| SE394062B (sv) | 1977-05-31 |
| FR2173688B1 (US08177716-20120515-C00003.png) | 1976-01-16 |
| FR2173688A1 (US08177716-20120515-C00003.png) | 1973-10-12 |
| JPS5740681B2 (US08177716-20120515-C00003.png) | 1982-08-30 |
| IT979307B (it) | 1974-09-30 |
| CH570073A5 (US08177716-20120515-C00003.png) | 1975-11-28 |
| NL174604C (nl) | 1984-07-02 |
| CA1000372A (en) | 1976-11-23 |
| DE2304692C2 (de) | 1984-05-03 |
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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 |