AU8346982A - Closed loop gain control - Google Patents
Closed loop gain controlInfo
- Publication number
- AU8346982A AU8346982A AU83469/82A AU8346982A AU8346982A AU 8346982 A AU8346982 A AU 8346982A AU 83469/82 A AU83469/82 A AU 83469/82A AU 8346982 A AU8346982 A AU 8346982A AU 8346982 A AU8346982 A AU 8346982A
- Authority
- AU
- Australia
- Prior art keywords
- closed loop
- gain control
- loop gain
- closed
- control
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Control Of Amplification And Gain Control (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Telephone Function (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8109190 | 1981-05-08 | ||
FR8109190A FR2505587A1 (en) | 1981-05-08 | 1981-05-08 | DEVICE FOR AVOIDING GENERATING MAINTAINED OSCILLATIONS IN A LOOP SYSTEM |
FR8119155A FR2514595A1 (en) | 1981-10-12 | 1981-10-12 | HANDS-FREE TELEPHONE STATION WITH SWITCHABLE GAINS ON TWO WAYS OF SPEECH |
FR8119155 | 1981-10-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU8346982A true AU8346982A (en) | 1982-11-11 |
AU547891B2 AU547891B2 (en) | 1985-11-07 |
Family
ID=26222382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU83469/82A Ceased AU547891B2 (en) | 1981-05-08 | 1982-05-06 | Closed loop gain control |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0065335B1 (en) |
JP (1) | JPH0662104A (en) |
AU (1) | AU547891B2 (en) |
CA (1) | CA1190984A (en) |
DE (1) | DE3261682D1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2514595A1 (en) * | 1981-10-12 | 1983-04-15 | Trt Telecom Radio Electr | HANDS-FREE TELEPHONE STATION WITH SWITCHABLE GAINS ON TWO WAYS OF SPEECH |
FR2505587A1 (en) * | 1981-05-08 | 1982-11-12 | Trt Telecom Radio Electr | DEVICE FOR AVOIDING GENERATING MAINTAINED OSCILLATIONS IN A LOOP SYSTEM |
DE3875650D1 (en) * | 1987-05-15 | 1992-12-10 | Standard Elektrik Lorenz Ag | CIRCUIT ARRANGEMENT FOR VOICE CONTROL FOR A TERMINAL DEVICE OF MESSAGE TECHNOLOGY. |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1156113B (en) * | 1958-02-28 | 1963-10-24 | Siemens Ag | Circuit arrangement for telephone systems with a voice-controlled feedback lock |
GB1349734A (en) * | 1969-11-07 | 1974-04-10 | Post Office | Arrangements for amplifying and reproducing audio frequency signals |
JPS5529676Y2 (en) * | 1975-07-03 | 1980-07-15 | ||
NL7612358A (en) * | 1976-11-08 | 1978-05-10 | Philips Nv | AMPLIFIER FOR ACOUSTIC SIGNALS EQUIPPED WITH MEANS FOR SUPPRESSING UNDESIRABLE INTERFERENCE SIGNALS. |
-
1982
- 1982-05-06 DE DE8282200544T patent/DE3261682D1/en not_active Expired
- 1982-05-06 EP EP19820200544 patent/EP0065335B1/en not_active Expired
- 1982-05-06 AU AU83469/82A patent/AU547891B2/en not_active Ceased
- 1982-05-06 CA CA000402425A patent/CA1190984A/en not_active Expired
-
1991
- 1991-03-18 JP JP7717191A patent/JPH0662104A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH0662104A (en) | 1994-03-04 |
CA1190984A (en) | 1985-07-23 |
AU547891B2 (en) | 1985-11-07 |
DE3261682D1 (en) | 1985-02-07 |
EP0065335A1 (en) | 1982-11-24 |
EP0065335B1 (en) | 1984-12-27 |
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