JPS4996748A - - Google Patents
Info
- Publication number
- JPS4996748A JPS4996748A JP48126891A JP12689173A JPS4996748A JP S4996748 A JPS4996748 A JP S4996748A JP 48126891 A JP48126891 A JP 48126891A JP 12689173 A JP12689173 A JP 12689173A JP S4996748 A JPS4996748 A JP S4996748A
- 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
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/24—Frequency- independent attenuators
- H03H7/27—Frequency- independent attenuators comprising a photo-electric element
-
- 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
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US30581672A | 1972-11-13 | 1972-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4996748A true JPS4996748A (show.php) | 1974-09-12 |
Family
ID=23182473
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48126891A Pending JPS4996748A (show.php) | 1972-11-13 | 1973-11-13 | |
| JP50077053A Pending JPS5118401A (show.php) | 1972-11-13 | 1975-06-24 | |
| JP50077052A Pending JPS5195701A (show.php) | 1972-11-13 | 1975-06-24 |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50077053A Pending JPS5118401A (show.php) | 1972-11-13 | 1975-06-24 | |
| JP50077052A Pending JPS5195701A (show.php) | 1972-11-13 | 1975-06-24 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3793521A (show.php) |
| JP (3) | JPS4996748A (show.php) |
| BR (1) | BR7308766D0 (show.php) |
| CA (1) | CA987010A (show.php) |
| DE (1) | DE2356668A1 (show.php) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005021298A1 (de) * | 2005-05-09 | 2006-11-16 | Rohde & Schwarz Gmbh & Co. Kg | Optoelektronisch gesteuerter Schalter oder Modulator und Abschwächer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3573684A (en) * | 1969-02-28 | 1971-04-06 | Zenith Radio Corp | Tuner for a wave signal receiver |
-
1972
- 1972-11-13 US US00305816A patent/US3793521A/en not_active Expired - Lifetime
-
1973
- 1973-10-18 CA CA183,714A patent/CA987010A/en not_active Expired
- 1973-11-08 BR BR8766/73A patent/BR7308766D0/pt unknown
- 1973-11-13 JP JP48126891A patent/JPS4996748A/ja active Pending
- 1973-11-13 DE DE2356668A patent/DE2356668A1/de active Pending
-
1975
- 1975-06-24 JP JP50077053A patent/JPS5118401A/ja active Pending
- 1975-06-24 JP JP50077052A patent/JPS5195701A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2356668A1 (de) | 1974-05-16 |
| CA987010A (en) | 1976-04-06 |
| BR7308766D0 (pt) | 1974-08-29 |
| JPS5195701A (show.php) | 1976-08-21 |
| US3793521A (en) | 1974-02-19 |
| JPS5118401A (show.php) | 1976-02-14 |