CS171946B1 - - Google Patents
Info
- Publication number
- CS171946B1 CS171946B1 CS902673A CS902673A CS171946B1 CS 171946 B1 CS171946 B1 CS 171946B1 CS 902673 A CS902673 A CS 902673A CS 902673 A CS902673 A CS 902673A CS 171946 B1 CS171946 B1 CS 171946B1
- Authority
- CS
- Czechoslovakia
Links
Classifications
-
- 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
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
- H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD16798872A DD101078A1 (show.php) | 1972-12-29 | 1972-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS171946B1 true CS171946B1 (show.php) | 1976-11-29 |
Family
ID=5489603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS902673A CS171946B1 (show.php) | 1972-12-29 | 1973-12-27 |
Country Status (5)
| Country | Link |
|---|---|
| CS (1) | CS171946B1 (show.php) |
| DD (1) | DD101078A1 (show.php) |
| DE (1) | DE2364369A1 (show.php) |
| SU (1) | SU510004A1 (show.php) |
| YU (1) | YU35411B (show.php) |
-
1972
- 1972-12-29 DD DD16798872A patent/DD101078A1/xx unknown
-
1973
- 1973-12-22 DE DE19732364369 patent/DE2364369A1/de active Pending
- 1973-12-26 YU YU336173A patent/YU35411B/xx unknown
- 1973-12-27 CS CS902673A patent/CS171946B1/cs unknown
- 1973-12-28 SU SU1985368A patent/SU510004A1/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2364369A1 (de) | 1974-07-04 |
| DD101078A1 (show.php) | 1973-10-12 |
| YU336173A (en) | 1980-06-30 |
| SU510004A1 (ru) | 1976-04-05 |
| YU35411B (en) | 1980-12-31 |