ZA728420B - Radio frequency circuit - Google Patents
Radio frequency circuitInfo
- Publication number
- ZA728420B ZA728420B ZA728420A ZA728420A ZA728420B ZA 728420 B ZA728420 B ZA 728420B ZA 728420 A ZA728420 A ZA 728420A ZA 728420 A ZA728420 A ZA 728420A ZA 728420 B ZA728420 B ZA 728420B
- Authority
- ZA
- South Africa
- Prior art keywords
- radio frequency
- frequency circuit
- circuit
- radio
- frequency
- Prior art date
Links
Classifications
-
- 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
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
- H03D3/08—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of diodes, e.g. Foster-Seeley discriminator
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712161478 DE2161478B2 (en) | 1971-12-10 | 1971-12-10 | HIGH FREQUENCY RECEIVING CIRCUIT, IN PARTICULAR TELEVISION RECEIVER WITH AUTOMATIC FREQUENCY CONTROL |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA728420B true ZA728420B (en) | 1973-07-25 |
Family
ID=5827668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA728420A ZA728420B (en) | 1971-12-10 | 1972-11-28 | Radio frequency circuit |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2161478B2 (en) |
FR (1) | FR2162611B1 (en) |
GB (1) | GB1401357A (en) |
ZA (1) | ZA728420B (en) |
-
1971
- 1971-12-10 DE DE19712161478 patent/DE2161478B2/en not_active Ceased
-
1972
- 1972-11-28 ZA ZA728420A patent/ZA728420B/en unknown
- 1972-12-07 GB GB5648472A patent/GB1401357A/en not_active Expired
- 1972-12-08 FR FR7243814A patent/FR2162611B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2161478A1 (en) | 1973-06-14 |
DE2161478B2 (en) | 1977-11-03 |
AU4959172A (en) | 1974-06-06 |
FR2162611B1 (en) | 1980-04-04 |
FR2162611A1 (en) | 1973-07-20 |
GB1401357A (en) | 1975-07-16 |
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