JPS5338566B2 - - Google Patents
Info
- Publication number
- JPS5338566B2 JPS5338566B2 JP10805774A JP10805774A JPS5338566B2 JP S5338566 B2 JPS5338566 B2 JP S5338566B2 JP 10805774 A JP10805774 A JP 10805774A JP 10805774 A JP10805774 A JP 10805774A JP S5338566 B2 JPS5338566 B2 JP S5338566B2
- Authority
- JP
- Japan
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
- H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
- H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49108057A JPS5133916A (en) | 1974-09-17 | 1974-09-17 | Vhf terebijonchuuna no nyuryokukairo |
AU84799/75A AU477625B2 (en) | 1974-09-17 | 1975-09-12 | Input circuit of vhf television set tuner |
US05/613,504 US4023106A (en) | 1974-09-17 | 1975-09-15 | Input circuit of VHF television set tuner |
CA235,733A CA1058747A (en) | 1974-09-17 | 1975-09-16 | Input circuit of vhf television set tuner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49108057A JPS5133916A (en) | 1974-09-17 | 1974-09-17 | Vhf terebijonchuuna no nyuryokukairo |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5133916A JPS5133916A (en) | 1976-03-23 |
JPS5338566B2 true JPS5338566B2 (ja) | 1978-10-16 |
Family
ID=14474808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP49108057A Granted JPS5133916A (en) | 1974-09-17 | 1974-09-17 | Vhf terebijonchuuna no nyuryokukairo |
Country Status (3)
Country | Link |
---|---|
US (1) | US4023106A (ja) |
JP (1) | JPS5133916A (ja) |
CA (1) | CA1058747A (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6043696B2 (ja) * | 1978-03-15 | 1985-09-30 | 三洋電機株式会社 | Vhfチユ−ナの段間同調結合回路 |
JPS55158639U (ja) * | 1979-05-02 | 1980-11-14 | ||
US4399559A (en) * | 1980-05-30 | 1983-08-16 | Rca Corporation | Voltage controlled tuner with voltage variable frequency selective arrangements controlled in response to a control voltage generated independently of the tuning voltage |
US4379271A (en) * | 1980-08-25 | 1983-04-05 | Rca Corporation | Input selection arrangement for applying different local oscillator signals to a prescaler of a phase-lock loop tuning system |
JPS5756047U (ja) * | 1980-09-17 | 1982-04-01 | ||
US4339827A (en) * | 1980-11-25 | 1982-07-13 | Rca Corporation | Automatic tuning circuit arrangement with switched impedances |
US4415930A (en) * | 1982-01-06 | 1983-11-15 | Matsushita Electric Industrial Co., Ltd. | Adjustable potentiometer assembly for tuning multi-band television receivers |
US4442548A (en) * | 1982-05-14 | 1984-04-10 | Rca Corporation | Television receiver tuning circuit tunable over a wide frequency range |
US4601062A (en) * | 1985-02-28 | 1986-07-15 | Rca Corporation | Tracking image frequency trap |
US4905306A (en) * | 1988-02-26 | 1990-02-27 | Rca Licensing Corporation | Filter switching arrangement for a tuner |
US4996599A (en) * | 1989-04-14 | 1991-02-26 | Rca Licensing Corporation | Television tuner oscillator with three point tracking |
US6553216B1 (en) | 1995-12-14 | 2003-04-22 | Thomson Licensing, S.A. | RF tunable filter arrangement with tunable image trap |
US6862437B1 (en) * | 1999-06-03 | 2005-03-01 | Tyco Electronics Corporation | Dual band tuning |
CN106209009B (zh) * | 2011-05-09 | 2019-03-01 | 株式会社村田制作所 | 阻抗匹配切换电路、天线装置及通信终端装置 |
CN105980344A (zh) * | 2014-01-27 | 2016-09-28 | 旭硝子株式会社 | 玻璃的腐蚀抑制方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2259596A (en) * | 1932-03-18 | 1941-10-21 | Vreeland Corp | Band receiving system |
GB412253A (en) * | 1932-12-19 | 1934-06-19 | Emi Ltd | Improvements in and relating to wireless receivers |
US2188964A (en) * | 1939-01-19 | 1940-02-06 | Johnson Lab Inc | Image-frequency suppression system |
US2310323A (en) * | 1940-09-30 | 1943-02-09 | James W Sharp | Antenna coupling and tuning system for communication or broadcast receivers |
US2591081A (en) * | 1949-09-07 | 1952-04-01 | Aladdin Ind Inc | Radio-frequency transformer |
US3289087A (en) * | 1959-03-24 | 1966-11-29 | Motorola Inc | Image rejection circuit |
US3162809A (en) * | 1962-07-25 | 1964-12-22 | Frenchy Radio Mfg Co | Antenna tuner circuit for radio transceiver |
US3450994A (en) * | 1964-04-14 | 1969-06-17 | Westinghouse Electric Corp | Double tuned frequency selective circuit providing a constant bandwidth |
FR1551681A (ja) * | 1967-07-13 | 1968-12-27 | ||
ES359059A1 (es) * | 1968-10-11 | 1970-05-16 | Fagor Electrotecnica Sci | Sintonizador integrado electronicamente para t. v. |
US3628152A (en) * | 1970-02-25 | 1971-12-14 | Rca Corp | Television tuning circuit utilizing voltage variable capacitance |
JPS5133683B1 (ja) * | 1971-06-17 | 1976-09-21 | ||
JPS5249613Y2 (ja) * | 1972-11-17 | 1977-11-11 | ||
US3903487A (en) * | 1974-05-01 | 1975-09-02 | Gte International Inc | Multi-circuit selection filter for two different frequency ranges |
-
1974
- 1974-09-17 JP JP49108057A patent/JPS5133916A/ja active Granted
-
1975
- 1975-09-15 US US05/613,504 patent/US4023106A/en not_active Expired - Lifetime
- 1975-09-16 CA CA235,733A patent/CA1058747A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5133916A (en) | 1976-03-23 |
AU8479975A (en) | 1976-11-04 |
US4023106A (en) | 1977-05-10 |
CA1058747A (en) | 1979-07-17 |