SE378721B - - Google Patents
Info
- Publication number
- SE378721B SE378721B SE644772A SE644772A SE378721B SE 378721 B SE378721 B SE 378721B SE 644772 A SE644772 A SE 644772A SE 644772 A SE644772 A SE 644772A SE 378721 B SE378721 B SE 378721B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
- H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type
- H03C1/542—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes
- H03C1/545—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes using bipolar transistors
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3063—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver using at least one transistor as controlling device, the transistor being used as a variable impedance device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Amplitude Modulation (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712124654 DE2124654C3 (en) | 1971-05-18 | 1971-05-18 | Circuit arrangement for controlling the mixer gain of an active push-pull modulator |
| DE19712124655 DE2124655C3 (en) | 1971-05-18 | 1971-05-18 | Low-distortion frequency generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE378721B true SE378721B (en) | 1975-09-08 |
Family
ID=25761147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE644772A SE378721B (en) | 1971-05-18 | 1972-05-17 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5219950B1 (en) |
| AU (1) | AU459773B2 (en) |
| CH (1) | CH538785A (en) |
| DE (2) | DE2124655C3 (en) |
| IT (1) | IT956263B (en) |
| NL (1) | NL149344B (en) |
| SE (1) | SE378721B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4989594A (en) * | 1972-12-26 | 1974-08-27 | ||
| US4337444A (en) * | 1978-10-10 | 1982-06-29 | Atari, Inc. | Radio frequency oscillator-modulator circuit |
| JPS61177006A (en) * | 1985-01-31 | 1986-08-08 | Sony Corp | Am modulator |
| DE4324304B4 (en) * | 1993-07-20 | 2005-01-27 | Harman Becker Automotive Systems (Becker Division) Gmbh | Method for suppressing interference in an FM receiver |
-
1971
- 1971-05-18 DE DE19712124655 patent/DE2124655C3/en not_active Expired
- 1971-05-18 DE DE19712124654 patent/DE2124654C3/en not_active Expired
-
1972
- 1972-02-04 CH CH167072A patent/CH538785A/en not_active IP Right Cessation
- 1972-04-04 AU AU40743/72A patent/AU459773B2/en not_active Expired
- 1972-05-10 NL NL7206336A patent/NL149344B/en unknown
- 1972-05-16 JP JP4850772A patent/JPS5219950B1/ja active Pending
- 1972-05-17 SE SE644772A patent/SE378721B/xx unknown
- 1972-05-17 IT IT2445472A patent/IT956263B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2124654C3 (en) | 1974-01-24 |
| IT956263B (en) | 1973-10-10 |
| AU4074372A (en) | 1973-10-11 |
| DE2124655B2 (en) | 1973-10-11 |
| DE2124654B2 (en) | 1973-06-07 |
| DE2124655A1 (en) | 1972-11-30 |
| JPS5219950B1 (en) | 1977-05-31 |
| DE2124655C3 (en) | 1974-05-09 |
| NL7206336A (en) | 1972-11-21 |
| NL149344B (en) | 1976-04-15 |
| DE2124654A1 (en) | 1972-11-30 |
| AU459773B2 (en) | 1975-04-10 |
| CH538785A (en) | 1973-06-30 |