JPS5649008B2 - - Google Patents
Info
- Publication number
- JPS5649008B2 JPS5649008B2 JP3614873A JP3614873A JPS5649008B2 JP S5649008 B2 JPS5649008 B2 JP S5649008B2 JP 3614873 A JP3614873 A JP 3614873A JP 3614873 A JP3614873 A JP 3614873A JP S5649008 B2 JPS5649008 B2 JP S5649008B2
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
-
- 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
- H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
- H03G9/18—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Networks Using Active Elements (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Dc Digital Transmission (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7204290A NL7204290A (US20020095090A1-20020718-M00002.png) | 1972-03-30 | 1972-03-30 | |
| NL7301752A NL7301752A (US20020095090A1-20020718-M00002.png) | 1973-02-08 | 1973-02-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4910010A JPS4910010A (US20020095090A1-20020718-M00002.png) | 1974-01-29 |
| JPS5649008B2 true JPS5649008B2 (US20020095090A1-20020718-M00002.png) | 1981-11-19 |
Family
ID=26644756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3614873A Expired JPS5649008B2 (US20020095090A1-20020718-M00002.png) | 1972-03-30 | 1973-03-29 |
Country Status (12)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1000617A (en) * | 1973-05-17 | 1976-11-30 | Ray M. Dolby | Compressors, expanders and noise reduction systems |
| NL7413514A (nl) * | 1974-10-15 | 1976-04-21 | Philips Nv | Inrichting voor het naar keuze realiseren van twee onderling komplementaire funkties. |
| JPS55156431A (en) * | 1979-05-24 | 1980-12-05 | Sony Corp | Noise reduction system |
| JPS5762779A (en) * | 1980-09-29 | 1982-04-15 | Toshiba Corp | Alwave rectifying circuit |
| LU87145A1 (fr) * | 1988-02-26 | 1989-09-20 | Oreal | Methode pour ameliorer l'aspect esthetique de la peau a l'aide de melanges polyvitaminiques |
| JPH0483548A (ja) * | 1990-07-24 | 1992-03-17 | Masaya Koyama | 泡立機及び泡立容器 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4939008A (US20020095090A1-20020718-M00002.png) * | 1972-08-23 | 1974-04-11 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2730576A (en) * | 1951-09-17 | 1956-01-10 | Bell Telephone Labor Inc | Miniaturized transistor amplifier circuit |
| GB920723A (en) * | 1960-07-07 | 1963-03-13 | Ass Elect Ind | Amplifier circuit |
| US3368158A (en) * | 1965-05-14 | 1968-02-06 | Bell Telephone Labor Inc | Low-level automatic gain control circuitry |
| US3444474A (en) * | 1965-12-10 | 1969-05-13 | Bell Telephone Labor Inc | Active equalizer circuit |
-
1973
- 1973-03-10 DE DE19732312086 patent/DE2312086C3/de not_active Expired
- 1973-03-19 AR AR24711073A patent/AR195708A1/es active
- 1973-03-21 CA CA166,658A patent/CA975439A/en not_active Expired
- 1973-03-27 SE SE7304271A patent/SE388988B/xx unknown
- 1973-03-27 IT IT6787773A patent/IT980703B/it active
- 1973-03-27 CH CH441973A patent/CH561488A5/xx not_active IP Right Cessation
- 1973-03-27 GB GB1458973A patent/GB1431481A/en not_active Expired
- 1973-03-28 AT AT270873A patent/AT346906B/de not_active IP Right Cessation
- 1973-03-28 FR FR7311127A patent/FR2178108B1/fr not_active Expired
- 1973-03-28 ES ES413099A patent/ES413099A1/es not_active Expired
- 1973-03-28 BE BE129400A patent/BE797480A/xx unknown
- 1973-03-29 JP JP3614873A patent/JPS5649008B2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4939008A (US20020095090A1-20020718-M00002.png) * | 1972-08-23 | 1974-04-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1431481A (en) | 1976-04-07 |
| DE2312086C3 (de) | 1979-10-31 |
| IT980703B (it) | 1974-10-10 |
| JPS4910010A (US20020095090A1-20020718-M00002.png) | 1974-01-29 |
| BE797480A (fr) | 1973-09-28 |
| AT346906B (de) | 1978-12-11 |
| FR2178108B1 (US20020095090A1-20020718-M00002.png) | 1976-05-21 |
| CH561488A5 (US20020095090A1-20020718-M00002.png) | 1975-04-30 |
| DE2312086A1 (de) | 1973-10-31 |
| DE2312086B2 (de) | 1979-03-22 |
| FR2178108A1 (US20020095090A1-20020718-M00002.png) | 1973-11-09 |
| CA975439A (en) | 1975-09-30 |
| ES413099A1 (es) | 1976-01-16 |
| AR195708A1 (es) | 1973-10-31 |
| SE388988B (sv) | 1976-10-18 |
| ATA270873A (de) | 1978-04-15 |
