PT74105B - Signal expander - Google Patents
Signal expanderInfo
- Publication number
- PT74105B PT74105B PT74105A PT7410581A PT74105B PT 74105 B PT74105 B PT 74105B PT 74105 A PT74105 A PT 74105A PT 7410581 A PT7410581 A PT 7410581A PT 74105 B PT74105 B PT 74105B
- Authority
- PT
- Portugal
- Prior art keywords
- signal expander
- expander
- signal
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Networks Using Active Elements (AREA)
- Control Of Amplification And Gain Control (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22951881A | 1981-01-29 | 1981-01-29 | |
US06/229,743 US4377788A (en) | 1981-01-29 | 1981-01-29 | Signal expander |
US06/258,432 US4398157A (en) | 1981-01-29 | 1981-04-28 | Signal expander/compressor with adaptive control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
PT74105A PT74105A (en) | 1982-01-01 |
PT74105B true PT74105B (en) | 1983-06-15 |
Family
ID=27397963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT74105A PT74105B (en) | 1981-01-29 | 1981-12-09 | Signal expander |
Country Status (11)
Country | Link |
---|---|
KR (1) | KR830009703A (en) |
AU (1) | AU544439B2 (en) |
DE (1) | DE3202951C2 (en) |
DK (1) | DK38682A (en) |
ES (1) | ES8308457A1 (en) |
FR (1) | FR2498850A1 (en) |
GB (1) | GB2094594B (en) |
IT (1) | IT1140449B (en) |
NL (1) | NL8200321A (en) |
PT (1) | PT74105B (en) |
SE (1) | SE8200367A0 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8701365D0 (en) * | 1987-01-22 | 1987-02-25 | Thomas L D | Signal level control |
SE9801235L (en) * | 1998-04-08 | 1999-10-09 | Anders Gingsjoe | Device and method for reducing transients |
DE10122922A1 (en) * | 2001-05-11 | 2002-11-14 | Mgp Instr Gmbh | Measured data fluctuation suppression comprises feeding signals into filter, subtracting output signal from control signal, and feeding difference signal to comparator |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1044004A (en) * | 1962-06-07 | 1966-09-28 | Emi Ltd | Improvements in or relating to circuits for compressing or expanding the amplitude range of an input signal |
US3732371A (en) * | 1971-05-10 | 1973-05-08 | Richard S Burwen | Wide dynamic range noise masking compandor |
DE2306152A1 (en) * | 1973-02-08 | 1974-08-15 | Grundig Emv | AUTOMATIC GAIN CONTROL |
US3980964A (en) * | 1974-05-20 | 1976-09-14 | Grodinsky Robert M | Noise reduction circuit |
US4024463A (en) * | 1976-05-03 | 1977-05-17 | Rockwell International Corporation | A.C. amplifier automatic gain control fast attack circuit |
DE2803751C2 (en) * | 1978-01-28 | 1982-06-09 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Circuit for automatic dynamic compression or expansion |
US4220929A (en) * | 1978-12-26 | 1980-09-02 | Dbx, Inc. | Signal expander |
GB2040616B (en) * | 1979-01-17 | 1983-01-26 | Racal Dana Instr Ltd | Electrical circuit arrangements |
-
1981
- 1981-12-09 PT PT74105A patent/PT74105B/en unknown
- 1981-12-31 IT IT25956/81A patent/IT1140449B/en active
-
1982
- 1982-01-22 ES ES508964A patent/ES8308457A1/en not_active Expired
- 1982-01-22 AU AU79758/82A patent/AU544439B2/en not_active Expired - Fee Related
- 1982-01-22 SE SE8200367A patent/SE8200367A0/en not_active Application Discontinuation
- 1982-01-26 KR KR1019820000318A patent/KR830009703A/en unknown
- 1982-01-27 GB GB8202295A patent/GB2094594B/en not_active Expired
- 1982-01-28 FR FR8201337A patent/FR2498850A1/en not_active Withdrawn
- 1982-01-28 DK DK38682A patent/DK38682A/en not_active Application Discontinuation
- 1982-01-28 NL NL8200321A patent/NL8200321A/en not_active Application Discontinuation
- 1982-01-29 DE DE3202951A patent/DE3202951C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3202951A1 (en) | 1982-08-26 |
SE8200367L (en) | 1982-07-30 |
GB2094594B (en) | 1984-10-24 |
IT1140449B (en) | 1986-09-24 |
IT8125956A0 (en) | 1981-12-31 |
AU7975882A (en) | 1982-08-05 |
ES508964A0 (en) | 1983-06-16 |
FR2498850A1 (en) | 1982-07-30 |
DK38682A (en) | 1982-07-30 |
ES8308457A1 (en) | 1983-06-16 |
GB2094594A (en) | 1982-09-15 |
SE8200367A0 (en) | 1982-07-30 |
DE3202951C2 (en) | 1984-08-09 |
NL8200321A (en) | 1982-08-16 |
PT74105A (en) | 1982-01-01 |
AU544439B2 (en) | 1985-05-30 |
KR830009703A (en) | 1983-12-22 |
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