JPS5032814A - - Google Patents
Info
- Publication number
- JPS5032814A JPS5032814A JP5465574A JP5465574A JPS5032814A JP S5032814 A JPS5032814 A JP S5032814A JP 5465574 A JP5465574 A JP 5465574A JP 5465574 A JP5465574 A JP 5465574A JP S5032814 A JPS5032814 A JP S5032814A
- 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.)
- Granted
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
-
- 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
Landscapes
- 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)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2363873 | 1973-05-17 | ||
GB2363873A GB1473831A (ja) | 1973-05-17 | 1973-05-17 | |
GB4167373 | 1973-09-05 | ||
GB4167373 | 1973-09-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5032814A true JPS5032814A (ja) | 1975-03-29 |
JPS5920205B2 JPS5920205B2 (ja) | 1984-05-11 |
Family
ID=26256641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP49054655A Expired JPS5920205B2 (ja) | 1973-05-17 | 1974-05-17 | 入力信号のダイナミツクレンジを変更するための回路 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3909733A (ja) |
JP (1) | JPS5920205B2 (ja) |
CA (1) | CA1000617A (ja) |
DE (3) | DE2423475C2 (ja) |
FR (1) | FR2230119B1 (ja) |
NL (1) | NL186053C (ja) |
SE (2) | SE403333B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63119327A (ja) * | 1980-06-30 | 1988-05-24 | レー・ミルトン・ドルビ | 信号の録音及び送信システムにおける媒体過負荷効果を低減させるエクスパンダ |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL179684C (nl) * | 1977-10-24 | 1986-10-16 | Hazemeijer Bv | Capacitieve wisselspanningsdeler. |
DK156356C (da) * | 1980-06-30 | 1989-12-27 | Ray Milton Dolby | Kredsloeb til reduktion af overbelastningseffekter i signalindspilnings-og transmissionssystemer |
FR2485838B1 (fr) * | 1980-06-30 | 1986-02-21 | Dolby Ray | Dispositif destine a modifier la plage dynamique de signaux d'entree |
GB2111356B (en) * | 1981-12-01 | 1985-03-20 | Ray Milton Dolby | Improvements in circuit arrangements for modifying dynamic range |
CA1188384A (en) * | 1981-12-29 | 1985-06-04 | Masayuki Katakura | Noise reduction circuit |
US5278912A (en) * | 1991-06-28 | 1994-01-11 | Resound Corporation | Multiband programmable compression system |
DE4124133C2 (de) * | 1991-07-20 | 2000-07-13 | Daimlerchrysler Aerospace Ag | Replayverfahren für eine Peilanordnung und Peilanordnung zum Ausführen des Replayverfahrens |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4910010A (ja) * | 1972-03-30 | 1974-01-29 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE727190C (de) * | 1934-03-23 | 1942-10-29 | Siemens Ag | Schaltungsanordnung zur Regelung des UEbertragungsmasses von UEbertragungssystemen mit Hilfe von Regelwiderstaenden |
US2589723A (en) * | 1948-12-09 | 1952-03-18 | Bendix Aviat Corp | Noise suppressor for audio circuits |
US3051846A (en) * | 1960-12-27 | 1962-08-28 | Bell Telephone Labor Inc | Negative resistance diode pulse repeater |
DE1954328U (de) | 1964-11-20 | 1967-01-26 | Bieder K G Stahl Und Maschb | Scharnier, insbesondere fuer kisten. |
GB1120541A (en) * | 1965-08-11 | 1968-07-17 | Dolby Ray Milton | Improvements in noise reduction systems |
US3581122A (en) * | 1967-10-26 | 1971-05-25 | Bell Telephone Labor Inc | All-pass filter circuit having negative resistance shunting resonant circuit |
GB1253031A (ja) * | 1968-01-10 | 1971-11-10 | ||
US3631365A (en) * | 1968-11-01 | 1971-12-28 | Dolby Laboratories Inc | Signal compressors and expanders |
US3562675A (en) * | 1969-05-16 | 1971-02-09 | Sperry Rand Corp | Automatic tuned interference signal rejection filter including drift compensation means |
DE1954238A1 (de) * | 1969-10-28 | 1971-05-06 | Standard Elek K Lorenz Ag | Schutzrohrankerkontakt |
GB1390341A (en) * | 1971-03-12 | 1975-04-09 | Dolby Laboratories Inc | Signal compressors and expanders |
GB1432763A (en) * | 1972-05-02 | 1976-04-22 | Dolby Laboratories Inc | Compressors expanders and noise reduction systems |
-
1974
- 1974-05-14 US US469837A patent/US3909733A/en not_active Expired - Lifetime
- 1974-05-14 CA CA199,760A patent/CA1000617A/en not_active Expired
- 1974-05-15 DE DE2423475A patent/DE2423475C2/de not_active Expired
- 1974-05-15 DE DE19742463193 patent/DE2463193C2/de not_active Expired
- 1974-05-15 DE DE19742463192 patent/DE2463192C2/de not_active Expired
- 1974-05-15 FR FR7416847A patent/FR2230119B1/fr not_active Expired
- 1974-05-16 SE SE7406542A patent/SE403333B/xx not_active IP Right Cessation
- 1974-05-17 JP JP49054655A patent/JPS5920205B2/ja not_active Expired
- 1974-05-17 NL NLAANVRAGE7406698,A patent/NL186053C/xx not_active IP Right Cessation
-
1977
- 1977-09-21 SE SE7710588A patent/SE421264B/xx not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4910010A (ja) * | 1972-03-30 | 1974-01-29 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63119327A (ja) * | 1980-06-30 | 1988-05-24 | レー・ミルトン・ドルビ | 信号の録音及び送信システムにおける媒体過負荷効果を低減させるエクスパンダ |
JPS63119328A (ja) * | 1980-06-30 | 1988-05-24 | レー・ミルトン・ドルビ | 信号の録音及び送信システムにおける媒体過負荷効果を低減させるノイズ低減装置 |
JPH0359612B2 (ja) * | 1980-06-30 | 1991-09-11 | Dolby Ray Milton | |
JPH0359611B2 (ja) * | 1980-06-30 | 1991-09-11 | Dolby Ray Milton |
Also Published As
Publication number | Publication date |
---|---|
DE2423475C2 (de) | 1984-01-05 |
NL186053B (nl) | 1990-04-02 |
SE403333B (sv) | 1978-08-07 |
DE2423475A1 (de) | 1974-12-05 |
US3909733A (en) | 1975-09-30 |
FR2230119B1 (ja) | 1979-07-13 |
SE7710588L (sv) | 1977-09-21 |
JPS5920205B2 (ja) | 1984-05-11 |
NL186053C (nl) | 1990-09-03 |
FR2230119A1 (ja) | 1974-12-13 |
SE421264B (sv) | 1981-12-07 |
CA1000617A (en) | 1976-11-30 |
NL7406698A (ja) | 1974-11-19 |
DE2463192C2 (de) | 1984-04-05 |
DE2463193C2 (de) | 1983-12-29 |