JPS6250030B1 - - Google Patents
Info
- Publication number
- JPS6250030B1 JPS6250030B1 JP81502870A JP50287081A JPS6250030B1 JP S6250030 B1 JPS6250030 B1 JP S6250030B1 JP 81502870 A JP81502870 A JP 81502870A JP 50287081 A JP50287081 A JP 50287081A JP S6250030 B1 JPS6250030 B1 JP S6250030B1
- Authority
- JP
- Japan
- Prior art keywords
- signal
- variable
- frequency
- input
- output
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 description 30
- 241000143252 Idaea infirmaria Species 0.000 description 27
- 238000000034 method Methods 0.000 description 24
- 230000006866 deterioration Effects 0.000 description 12
- 230000007423 decrease Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
- H03D3/003—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback
- H03D3/005—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback wherein the demodulated signal is used for controlling a bandpass filter
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/16—Automatic control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/04—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier
- H04N7/045—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier the carrier being frequency modulated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Processing Of Color Television Signals (AREA)
- Color Television Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP1981/000207 WO1983000974A1 (fr) | 1981-08-31 | 1981-08-31 | Systeme demodulateur fm de sensibilite elevee |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO1983000974A1 JPWO1983000974A1 (ja) | 1983-05-06 |
| JPS6250030B1 true JPS6250030B1 (enExample) | 1987-10-22 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| AU7537281A (en) | 1983-03-28 |
| CA1189958A (en) | 1985-07-02 |
| US4527187A (en) | 1985-07-02 |
| EP0086839B1 (en) | 1986-12-03 |
| WO1983000974A1 (fr) | 1983-03-17 |
| AU537038B2 (en) | 1984-05-31 |
| MX151560A (es) | 1984-12-13 |
| DE3175690D1 (en) | 1987-01-15 |
| EP0086839A4 (en) | 1984-06-13 |
| EP0086839A1 (en) | 1983-08-31 |
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