JPS4933881B1 - - Google Patents
Info
- Publication number
- JPS4933881B1 JPS4933881B1 JP45003444A JP344470A JPS4933881B1 JP S4933881 B1 JPS4933881 B1 JP S4933881B1 JP 45003444 A JP45003444 A JP 45003444A JP 344470 A JP344470 A JP 344470A JP S4933881 B1 JPS4933881 B1 JP S4933881B1
- 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.)
- Pending
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US79146869A | 1969-01-15 | 1969-01-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4933881B1 true JPS4933881B1 (ja) | 1974-09-10 |
Family
ID=25153831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP45003444A Pending JPS4933881B1 (ja) | 1969-01-15 | 1970-01-13 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3617899A (ja) |
| JP (1) | JPS4933881B1 (ja) |
| BR (1) | BR7016032D0 (ja) |
| DE (1) | DE2001660B2 (ja) |
| ES (1) | ES375367A1 (ja) |
| FR (1) | FR2028403A1 (ja) |
| GB (1) | GB1293122A (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4408347A (en) * | 1977-07-29 | 1983-10-04 | Texas Instruments Incorporated | High-frequency channel selector having fixed bandpass filters in the RF section |
| FR2439507B1 (fr) * | 1978-10-16 | 1986-07-04 | Licentia Gmbh | Montage de synchronisation de la frequence d'oscillateur et de la frequence de resonance du circuit d'entree d'un recepteur super-heterodyne |
| US4288875A (en) * | 1980-02-08 | 1981-09-08 | Rca Corporation | Controlled local oscillator with apparatus for extending its frequency range |
| IT1150715B (it) * | 1982-03-19 | 1986-12-17 | Marco Clementi | Autoradio con dispositivi che ne permettono la manovra a distanza |
| US4703292A (en) * | 1985-03-04 | 1987-10-27 | Sony Corporation | Tuning circuit apparatus |
| US4837852A (en) * | 1985-06-17 | 1989-06-06 | Toko, Inc. | Electronic tuning circuit for AM receiver which is easy to effect tracking adjustment |
| AU2023232804A1 (en) * | 2022-03-07 | 2024-10-10 | Incaendium Initiative Corporation | Electrical power generation and architecture structure for controlling an acoustic fire suppression system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3008084A (en) * | 1958-08-04 | 1961-11-07 | Gilbert N Cotton | Voltage regulating system |
| US3354397A (en) * | 1964-02-12 | 1967-11-21 | Standard Kollsman Ind Inc | Voltage variable diode capacitance tunable circuit for television apparatus |
-
1969
- 1969-01-15 US US791468*A patent/US3617899A/en not_active Expired - Lifetime
-
1970
- 1970-01-07 GB GB711/70A patent/GB1293122A/en not_active Expired
- 1970-01-12 ES ES375367A patent/ES375367A1/es not_active Expired
- 1970-01-13 JP JP45003444A patent/JPS4933881B1/ja active Pending
- 1970-01-14 BR BR216032/70A patent/BR7016032D0/pt unknown
- 1970-01-15 FR FR7001443A patent/FR2028403A1/fr not_active Withdrawn
- 1970-01-15 DE DE19702001660 patent/DE2001660B2/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| BR7016032D0 (pt) | 1973-01-04 |
| DE2001660A1 (de) | 1971-02-11 |
| GB1293122A (en) | 1972-10-18 |
| US3617899A (en) | 1971-11-02 |
| ES375367A1 (es) | 1972-05-01 |
| FR2028403A1 (ja) | 1970-10-09 |
| DE2001660B2 (de) | 1972-12-28 |