BE712376A - - Google Patents
Info
- Publication number
- BE712376A BE712376A BE712376DA BE712376A BE 712376 A BE712376 A BE 712376A BE 712376D A BE712376D A BE 712376DA BE 712376 A BE712376 A BE 712376A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
- H04B1/64—Volume compression or expansion arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude
- H03G11/002—Limiting amplitude; Limiting rate of change of amplitude without controlling loop
-
- 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
-
- 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)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3439465A GB1120541A (en) | 1965-08-11 | 1965-08-11 | Improvements in noise reduction systems |
| GB4313665 | 1965-10-11 | ||
| GB236866 | 1966-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE712376A true BE712376A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1968-07-31 |
Family
ID=27254067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE712376D BE712376A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-08-11 | 1968-03-18 |
Country Status (6)
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1338227A (en) * | 1970-01-23 | 1973-11-21 | Dalby Lab Inc | Limiters for noise reduction systems |
| GB1390341A (en) * | 1971-03-12 | 1975-04-09 | Dolby Laboratories Inc | Signal compressors and expanders |
| NL163388C (nl) * | 1971-05-04 | 1980-08-15 | Philips Nv | Ruisonderdrukkingsschakeling. |
| US3729693A (en) * | 1971-08-02 | 1973-04-24 | R Dolby | Compressor/expander switching methods and apparatus |
| GB1438711A (en) * | 1973-01-23 | 1976-06-09 | Dolby Laboratories Inc | Calibration oscillators for noise reduction systems |
| US3909733A (en) * | 1973-05-17 | 1975-09-30 | Dolby Laboratories Inc | Dynamic range modifying circuits utilizing variable negative resistance |
| DE2542745C2 (de) * | 1975-09-25 | 1983-06-09 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verstärker mit veränderbarem Übertragungsmaß, insbesondere für ein Kompander-System |
| DE2530144C3 (de) * | 1975-07-05 | 1981-11-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verstärker mit veränderbarem Übertragungsmaß |
| DE2655325C2 (de) * | 1976-12-07 | 1984-01-26 | Saba Gmbh, 7730 Villingen-Schwenningen | Magnetbandgerät mit einer im Wiedergabebetrieb wirksamen Rauschunterdrückungs-Schaltung |
| GB2002204B (en) * | 1977-08-06 | 1982-01-27 | Licentia Gmbh | Dynamic compression or expansion circuits |
| JPS5439516A (en) * | 1977-09-02 | 1979-03-27 | Sanyo Electric Co Ltd | Noise reduction unit |
| JPS5545112A (en) | 1978-09-22 | 1980-03-29 | Sony Corp | Signal transmitter |
| JPS55156431A (en) * | 1979-05-24 | 1980-12-05 | Sony Corp | Noise reduction system |
| CA1184506A (en) * | 1980-04-21 | 1985-03-26 | Akira Komatsu | Method and system for discriminating human voice signal |
| US4540946A (en) * | 1980-06-06 | 1985-09-10 | National Research Development Corp. | Variable characteristic filters |
| DE3029441A1 (de) * | 1980-08-02 | 1982-03-04 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Signaluebertragungsschaltung mit steuerbarem uebertragungsmass |
| JPS5744338A (en) | 1980-08-29 | 1982-03-12 | Victor Co Of Japan Ltd | Noise reduction device |
| FR2490856B1 (fr) * | 1980-09-22 | 1985-09-27 | Elison Sarl | Appareil pour la reduction du bruit de fond du type a analyse spectrale en temps reel |
| JPS5769891A (en) * | 1980-10-17 | 1982-04-28 | Tokyo Shibaura Electric Co | Washing machine doubling as hydroextracting |
| JPS57138009A (en) * | 1981-02-20 | 1982-08-26 | Hitachi Ltd | Magnetic recorder and reproducer |
| JPS57140085A (en) * | 1981-02-23 | 1982-08-30 | Hitachi Ltd | Audio signal recording and reproducing circuit |
| JPS5866064A (ja) * | 1981-10-15 | 1983-04-20 | Toshiba Corp | レベル検出回路 |
| GB2111355B (en) * | 1981-12-01 | 1985-02-13 | Ray Milton Dolby | Improvements in circuit arrangements for modifying dynamic range |
| DE3305938A1 (de) * | 1983-02-21 | 1984-08-23 | Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover | Schaltungsanordnung zur erzeugung einer von einer wechselspannung abhaengigen steuergleichspannung |
| DE3323751C1 (de) * | 1983-07-01 | 1984-11-22 | Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover | System zur UEbertragung eines frequenzmodulierten Tontraegers |
| JPS60111137A (ja) * | 1983-11-18 | 1985-06-17 | Shimadzu Corp | 定荷重材料試験機 |
| GB2189366B (en) * | 1986-04-17 | 1989-12-28 | British Broadcasting Corp | Method and apparatus for conveying information signals |
| DE3939478C2 (de) * | 1989-02-03 | 1994-09-22 | Pioneer Electronic Corp | Vorrichtung zur Rauschunterdrückung in einem FM-Stereotuner |
| US5253299A (en) * | 1989-02-03 | 1993-10-12 | Pioneer Electronic Corporation | Noise reduction apparatus in an FM stereo tuner |
| KR920007607B1 (ko) * | 1989-09-01 | 1992-09-08 | 삼성전자 주식회사 | 디지탈 텔레비젼 수상기에 있어서 콘트라스트 조정회로 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE754298C (de) * | 1935-07-04 | 1952-07-17 | Emi Ltd | Niederfrequentes UEbertragungssystem mit selbsttaetiger Amplituden-regelung durch eine quer zum UEbertragungsweg geschaltete Impedanz-Mehrgitterroehre |
| US2171671A (en) * | 1936-05-20 | 1939-09-05 | Emi Ltd | Thermionic valve circuit |
| GB643574A (en) * | 1946-01-19 | 1950-09-20 | Hermon Hosmer Scott | Improvements in apparatus or systems for transmitting electric signals |
| US2817715A (en) * | 1952-07-15 | 1957-12-24 | California Research Corp | Amplifier circuit having linear and non-linear amplification ranges |
| US2925529A (en) * | 1952-11-04 | 1960-02-16 | Bell Telephone Labor Inc | Non-linear transmission circuits |
| DE1036930B (de) * | 1955-04-07 | 1958-08-21 | Siemens Ag | Nachrichtenuebertragungssystem mit Kompander |
| DE1048950B (de) * | 1956-07-19 | 1959-01-22 | Siemens Ag | Nachrichtenuebertragungssystem mit einer Anordnung zur Geraeuschunterdrueckung |
| US2969459A (en) * | 1957-11-14 | 1961-01-24 | Collins Radio Co | Method and means for reducing the threshold of angular-modulation receivers |
| GB856892A (en) * | 1957-11-14 | 1960-12-21 | Collins Radio Co | Means for reducing the threshold of angular-modulation receivers |
| DE1120171B (de) * | 1959-12-24 | 1961-12-21 | Carl Lindstroem Ges M B H | Verfahren zur Erhoehung der mittleren Aussteuerung von Tonaufnahmen |
| US3111635A (en) * | 1960-05-05 | 1963-11-19 | Fairchild Recording Equipment | Method and apparatus for eliminating overloading in modulating systems having pre-emphasis means |
| FR1374370A (fr) * | 1963-06-07 | 1964-10-09 | Emi Ltd | Perfectionnements à l'enregistrement et la transmission des sons |
| FR1392138A (fr) * | 1964-04-08 | 1965-03-12 | Rca Corp | Dispositif pour la transmission de sons audibles |
-
1965
- 1965-08-11 GB GB3439465A patent/GB1120541A/en not_active Expired
-
1966
- 1966-08-08 NL NL6611156A patent/NL147297B/xx not_active IP Right Cessation
- 1966-08-09 CH CH1140866A patent/CH467560A/de unknown
- 1966-08-10 DE DE19661487276 patent/DE1487276C3/de not_active Expired
- 1966-08-11 JP JP41052369A patent/JPS4841044B1/ja active Pending
-
1968
- 1968-03-18 BE BE712376D patent/BE712376A/xx not_active IP Right Cessation
-
1972
- 1972-01-21 JP JP771872A patent/JPS5026887B1/ja active Pending
- 1972-01-21 JP JP47007717A patent/JPS4842361B1/ja active Pending
-
1973
- 1973-11-26 JP JP13183273A patent/JPS5114842B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4841044B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-12-04 |
| DE1487276B2 (de) | 1975-02-20 |
| GB1120541A (en) | 1968-07-17 |
| NL6611156A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-02-13 |
| NL147297B (nl) | 1975-09-15 |
| CH467560A (de) | 1969-01-15 |
| JPS5026887B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-09-04 |
| JPS4842361B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-12-12 |
| DE1487276C3 (de) | 1982-01-07 |
| JPS5114842B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-05-12 |
| DE1487276A1 (de) | 1969-03-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE20 | Patent expired |
Owner name: DOLBY RAY M. Effective date: 19880318 |