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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7204290A NL7204290A (sv) | 1972-03-30 | 1972-03-30 | |
| NL7301752A NL7301752A (sv) | 1973-02-08 | 1973-02-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4910010A JPS4910010A (sv) | 1974-01-29 |
| JPS5649008B2 true JPS5649008B2 (sv) | 1981-11-19 |
Family
ID=26644756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3614873A Expired JPS5649008B2 (sv) | 1972-03-30 | 1973-03-29 |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5649008B2 (sv) |
| AR (1) | AR195708A1 (sv) |
| AT (1) | AT346906B (sv) |
| BE (1) | BE797480A (sv) |
| CA (1) | CA975439A (sv) |
| CH (1) | CH561488A5 (sv) |
| DE (1) | DE2312086C3 (sv) |
| ES (1) | ES413099A1 (sv) |
| FR (1) | FR2178108B1 (sv) |
| GB (1) | GB1431481A (sv) |
| IT (1) | IT980703B (sv) |
| SE (1) | SE388988B (sv) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3909733A (en) * | 1973-05-17 | 1975-09-30 | Dolby Laboratories Inc | Dynamic range modifying circuits utilizing variable negative resistance |
| 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 (sv) * | 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 GB GB1458973A patent/GB1431481A/en not_active Expired
- 1973-03-27 CH CH441973A patent/CH561488A5/xx not_active IP Right Cessation
- 1973-03-27 IT IT6787773A patent/IT980703B/it active
- 1973-03-27 SE SE7304271A patent/SE388988B/sv unknown
- 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
- 1973-03-28 AT AT270873A patent/AT346906B/de not_active IP Right Cessation
- 1973-03-29 JP JP3614873A patent/JPS5649008B2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4939008A (sv) * | 1972-08-23 | 1974-04-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2312086C3 (de) | 1979-10-31 |
| ATA270873A (de) | 1978-04-15 |
| AT346906B (de) | 1978-12-11 |
| CA975439A (en) | 1975-09-30 |
| FR2178108B1 (sv) | 1976-05-21 |
| JPS4910010A (sv) | 1974-01-29 |
| DE2312086A1 (de) | 1973-10-31 |
| ES413099A1 (es) | 1976-01-16 |
| CH561488A5 (sv) | 1975-04-30 |
| FR2178108A1 (sv) | 1973-11-09 |
| GB1431481A (en) | 1976-04-07 |
| IT980703B (it) | 1974-10-10 |
| SE388988B (sv) | 1976-10-18 |
| DE2312086B2 (de) | 1979-03-22 |
| AR195708A1 (es) | 1973-10-31 |
| BE797480A (fr) | 1973-09-28 |