JPS5745362B2 - - Google Patents
Info
- Publication number
- JPS5745362B2 JPS5745362B2 JP50080559A JP8055975A JPS5745362B2 JP S5745362 B2 JPS5745362 B2 JP S5745362B2 JP 50080559 A JP50080559 A JP 50080559A JP 8055975 A JP8055975 A JP 8055975A JP S5745362 B2 JPS5745362 B2 JP S5745362B2
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US503716A US3902131A (en) | 1974-09-06 | 1974-09-06 | Tandem audio dynamic range expander |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5138946A JPS5138946A (https=) | 1976-03-31 |
| JPS5745362B2 true JPS5745362B2 (https=) | 1982-09-27 |
Family
ID=24003220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50080559A Expired JPS5745362B2 (https=) | 1974-09-06 | 1975-07-01 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3902131A (https=) |
| JP (1) | JPS5745362B2 (https=) |
| CA (1) | CA1020872A (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59108445U (ja) * | 1983-01-14 | 1984-07-21 | 松下電工株式会社 | 什器 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529172A (en) * | 1975-07-14 | 1977-01-24 | Riyokuseishiya:Kk | Recovering apparatus for suspended oil on water surface |
| US4200889A (en) * | 1976-12-27 | 1980-04-29 | Basf Aktiengesellschaft | Complementary pre-emphasis and de-emphasis circuits for a video signal transfer channel |
| JPS5439516A (en) * | 1977-09-02 | 1979-03-27 | Sanyo Electric Co Ltd | Noise reduction unit |
| JPS56106433A (en) * | 1980-01-28 | 1981-08-24 | Sony Corp | Noise reducing circuit |
| JPS56107648A (en) * | 1980-01-30 | 1981-08-26 | Sony Corp | Noise reduction circuit |
| DK172325B1 (da) * | 1980-06-30 | 1998-03-16 | Ray Milton Dolby | Signalkompressor og signalekspander til brug i et transmissionssystem |
| JPS58161694U (ja) * | 1982-04-21 | 1983-10-27 | 梨井 義雄 | 浮上油回収装置 |
| US4628276A (en) * | 1983-12-15 | 1986-12-09 | Matsushita Graphic Communications Systems, Inc. | Logarithmically linearly controlled variable gain amplifier |
| US4701722A (en) * | 1985-06-17 | 1987-10-20 | Dolby Ray Milton | Circuit arrangements for modifying dynamic range using series and parallel circuit techniques |
| GB9520468D0 (en) * | 1995-10-06 | 1995-12-06 | Plessey Semiconductors Ltd | Lan equalizer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665345A (en) * | 1969-07-21 | 1972-05-23 | Dolby Laboratories Inc | Compressors and expanders for noise reduction systems |
| US3795876A (en) * | 1971-04-06 | 1974-03-05 | Victor Company Of Japan | Compression and/or expansion system and circuit |
| GB1401336A (en) * | 1971-10-05 | 1975-07-16 | Victor Company Of Japan | Expander circuit for a compression and expansion system |
| US3735290A (en) * | 1972-04-18 | 1973-05-22 | Victor Company Of Japan | Compressing and/or expanding system comprising fixed and variable frequency characteristic changing circuits |
-
1974
- 1974-09-06 US US503716A patent/US3902131A/en not_active Expired - Lifetime
-
1975
- 1975-06-19 CA CA229,719A patent/CA1020872A/en not_active Expired
- 1975-07-01 JP JP50080559A patent/JPS5745362B2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59108445U (ja) * | 1983-01-14 | 1984-07-21 | 松下電工株式会社 | 什器 |
Also Published As
| Publication number | Publication date |
|---|---|
| US3902131A (en) | 1975-08-26 |
| JPS5138946A (https=) | 1976-03-31 |
| CA1020872A (en) | 1977-11-15 |