JPS4978401A - - Google Patents
Info
- Publication number
- JPS4978401A JPS4978401A JP48120616A JP12061673A JPS4978401A JP S4978401 A JPS4978401 A JP S4978401A JP 48120616 A JP48120616 A JP 48120616A JP 12061673 A JP12061673 A JP 12061673A JP S4978401 A JPS4978401 A JP S4978401A
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00301706A US3806844A (en) | 1972-10-27 | 1972-10-27 | Uhf varactor tuner having a chassis of unitary construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4978401A true JPS4978401A (OSRAM) | 1974-07-29 |
Family
ID=23164515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48120616A Pending JPS4978401A (OSRAM) | 1972-10-27 | 1973-10-26 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3806844A (OSRAM) |
| JP (1) | JPS4978401A (OSRAM) |
| CA (1) | CA1011890A (OSRAM) |
| ES (1) | ES419945A1 (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5671623U (OSRAM) * | 1979-11-07 | 1981-06-12 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3909726A (en) * | 1973-09-26 | 1975-09-30 | Zenith Radio Corp | UHF Hybrid tuner |
| JPS5299746A (en) * | 1976-02-18 | 1977-08-22 | Toshiba Corp | Microstrip line |
| US4048597A (en) * | 1976-06-28 | 1977-09-13 | Rca Corporation | Planar printed circuit board arrangement useful in the uhf portion of a television tuner |
| US4897624A (en) * | 1989-02-23 | 1990-01-30 | Thomson Consumer Electronics, Inc. | Unitary capacitance trimmer |
| US4851798A (en) * | 1988-03-31 | 1989-07-25 | Rca Licensing Corporation | Unitary tuning structure |
| FR2714217B1 (fr) * | 1993-12-17 | 1996-01-26 | Thomson Csf | Filtre hyperfréquence à résonateurs couplés accordés par des capacités variables, à structure triplaque et à agilité de fréquence. |
| EP1143552A1 (en) * | 2000-03-09 | 2001-10-10 | Lucent Technologies Inc. | Sheet-metal filter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4222004Y1 (OSRAM) * | 1964-09-22 | 1967-12-16 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3264566A (en) * | 1962-07-13 | 1966-08-02 | Gen Instrument Corp | Electronic switching of tuned circuits |
| DE1266373C2 (de) * | 1964-02-01 | 1973-05-24 | Telefunken Patent | Abstimmeinrichtung fuer mehrere getrennte Frequenzbereiche |
| US3483483A (en) * | 1967-09-20 | 1969-12-09 | Fernsehgeratewerke Stassfurt V | Transistor oscillator with strip-conductor interstage coupling |
| US3624554A (en) * | 1970-03-23 | 1971-11-30 | Rca Corp | Ultrahigh frequency oscillator utilizing transmission line tunable resonant circuits |
| US3679990A (en) * | 1971-01-27 | 1972-07-25 | Gen Instrument Corp | Variable frequency oscillator with substantially linear afc over tuning range |
-
1972
- 1972-10-27 US US00301706A patent/US3806844A/en not_active Expired - Lifetime
-
1973
- 1973-07-20 CA CA176,953A patent/CA1011890A/en not_active Expired
- 1973-10-25 ES ES419945A patent/ES419945A1/es not_active Expired
- 1973-10-26 JP JP48120616A patent/JPS4978401A/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4222004Y1 (OSRAM) * | 1964-09-22 | 1967-12-16 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5671623U (OSRAM) * | 1979-11-07 | 1981-06-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1011890A (en) | 1977-06-07 |
| US3806844A (en) | 1974-04-23 |
| ES419945A1 (es) | 1976-04-16 |