FR2153987A5 - - Google Patents
Info
- Publication number
- FR2153987A5 FR2153987A5 FR7232401A FR7232401A FR2153987A5 FR 2153987 A5 FR2153987 A5 FR 2153987A5 FR 7232401 A FR7232401 A FR 7232401A FR 7232401 A FR7232401 A FR 7232401A FR 2153987 A5 FR2153987 A5 FR 2153987A5
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
- H03J7/10—Modification of automatic frequency control sensitivity or linearising automatic frequency control operation
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46071598A JPS4838013A (fr) | 1971-09-14 | 1971-09-14 | |
| JP7159771A JPS53649B2 (fr) | 1971-09-14 | 1971-09-14 | |
| JP7159971A JPS53650B2 (fr) | 1971-09-14 | 1971-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2153987A5 true FR2153987A5 (fr) | 1973-05-04 |
Family
ID=27300703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7232401A Expired FR2153987A5 (fr) | 1971-09-14 | 1972-09-13 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3753172A (fr) |
| AU (1) | AU451583B2 (fr) |
| CA (1) | CA961559A (fr) |
| DE (1) | DE2244971C3 (fr) |
| FR (1) | FR2153987A5 (fr) |
| GB (1) | GB1400583A (fr) |
| NL (1) | NL161944C (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3980968A (en) * | 1975-01-02 | 1976-09-14 | Zenith Radio Corporation | Non-proportionate AFC system |
| US4020420A (en) * | 1975-03-20 | 1977-04-26 | Matsushita Electric Industrial Co., Ltd. | Electronic channel selector |
| US4061981A (en) * | 1976-08-18 | 1977-12-06 | General Motors Corporation | Voltage variable capacitor tuned radio receiver having delayed automatic frequency control at turn-on |
| US4081771A (en) * | 1976-12-06 | 1978-03-28 | Zenith Radio Corporation | 82 Detent manual varactor tuning system |
| JPS5680921A (en) * | 1979-12-06 | 1981-07-02 | Hitachi Ltd | Automatic tuning circuit |
| US4638180A (en) * | 1984-03-09 | 1987-01-20 | Matsushita Electric Industrial Co., Ltd. | Frequency divider circuits |
| JPH0666643B2 (ja) * | 1984-08-16 | 1994-08-24 | 松下電器産業株式会社 | 高周波信号受信用可変容量同調回路 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3631349A (en) * | 1970-03-09 | 1971-12-28 | Sylvania Electric Prod | Automatic signal-seeking circuitry |
| US3706041A (en) * | 1970-10-20 | 1972-12-12 | Emerson Electric Co | Automatic tuning circuit |
| US3634700A (en) * | 1970-12-29 | 1972-01-11 | Gen Electric | Bidirectional frequency scan system |
-
1972
- 1972-09-11 CA CA151,397A patent/CA961559A/en not_active Expired
- 1972-09-11 GB GB4215772A patent/GB1400583A/en not_active Expired
- 1972-09-11 US US00287919A patent/US3753172A/en not_active Expired - Lifetime
- 1972-09-12 AU AU46558/72A patent/AU451583B2/en not_active Expired
- 1972-09-13 FR FR7232401A patent/FR2153987A5/fr not_active Expired
- 1972-09-13 NL NL7212427.A patent/NL161944C/xx not_active IP Right Cessation
- 1972-09-13 DE DE2244971A patent/DE2244971C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU451583B2 (en) | 1974-08-15 |
| NL161944C (nl) | 1980-03-17 |
| CA961559A (en) | 1975-01-21 |
| GB1400583A (en) | 1975-07-16 |
| US3753172A (en) | 1973-08-14 |
| NL7212427A (fr) | 1973-03-16 |
| DE2244971A1 (de) | 1973-04-05 |
| AU4655872A (en) | 1974-03-21 |
| DE2244971B2 (de) | 1979-08-02 |
| NL161944B (nl) | 1979-10-15 |
| DE2244971C3 (de) | 1980-04-03 |