JPS5933357U - 圧縮伸長装置 - Google Patents
圧縮伸長装置Info
- Publication number
- JPS5933357U JPS5933357U JP1982129585U JP12958582U JPS5933357U JP S5933357 U JPS5933357 U JP S5933357U JP 1982129585 U JP1982129585 U JP 1982129585U JP 12958582 U JP12958582 U JP 12958582U JP S5933357 U JPS5933357 U JP S5933357U
- Authority
- JP
- Japan
- Prior art keywords
- compression
- expansion equipment
- sum signal
- gain
- audio signals
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
- H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
- H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
- H04H40/72—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving for noise suppression
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Stereo-Broadcasting Methods (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
め要約のデータは記録されません。
Description
第1図は圧縮伸長装置の従来例を示すブロック図、第2
図はモノラル受信機の伸長器のブ爾ツク図、第3図は本
考案の実施例を示すブロック図、第4図及び第5図は本
考案の他の実施例を示すブロック図である。 主要部分の符号の説明、1・・・圧縮器、2・・・伸長
器、3,4,9.10・・・VCA、5.11・・・ピ
ークOR回路、6.19・・・レベル検出回路。
図はモノラル受信機の伸長器のブ爾ツク図、第3図は本
考案の実施例を示すブロック図、第4図及び第5図は本
考案の他の実施例を示すブロック図である。 主要部分の符号の説明、1・・・圧縮器、2・・・伸長
器、3,4,9.10・・・VCA、5.11・・・ピ
ークOR回路、6.19・・・レベル検出回路。
Claims (1)
- 相関性を有する少なくとも2つのオーディオ信号の各レ
ベルの和信号及び差信号の利得を圧縮伸長する圧縮伸長
装置であって、前記和信号レベルに応じて前記各オーデ
ィオ信号又は前記和信号及び差信号のいずれか一方を圧
縮側で各々圧縮しかつ伸長側で各々伸長するようになさ
れていることを特徴とする圧縮伸長装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1982129585U JPS5933357U (ja) | 1982-08-27 | 1982-08-27 | 圧縮伸長装置 |
GB08322739A GB2129659B (en) | 1982-08-27 | 1983-08-24 | Stereo compression/expansion device |
DE19833330882 DE3330882A1 (de) | 1982-08-27 | 1983-08-26 | Kompressions-/dehnungsvorrichtung |
US06/526,843 US4535471A (en) | 1982-08-27 | 1983-08-26 | Compression/expansion device |
FR8313844A FR2532496B1 (fr) | 1982-08-27 | 1983-08-29 | Dispositif de compression/expansion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1982129585U JPS5933357U (ja) | 1982-08-27 | 1982-08-27 | 圧縮伸長装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5933357U true JPS5933357U (ja) | 1984-03-01 |
Family
ID=15013086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1982129585U Pending JPS5933357U (ja) | 1982-08-27 | 1982-08-27 | 圧縮伸長装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4535471A (ja) |
JP (1) | JPS5933357U (ja) |
DE (1) | DE3330882A1 (ja) |
FR (1) | FR2532496B1 (ja) |
GB (1) | GB2129659B (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3414632A1 (de) * | 1984-04-18 | 1985-10-24 | Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover | Verfahren und schaltung zur verarbeitung von in ihrer dynamik vorbestimmt veraenderten signalen, insbesondere fuer audio-signale |
US4679239A (en) * | 1984-08-22 | 1987-07-07 | National Communications Research Center, Inc. | Apparatus and method for processing stereo signals for application to an AM stereo broadcasting unit |
US4704727A (en) * | 1985-11-27 | 1987-11-03 | Beard Terry D | Low noise and distortion FM transmission system and method |
US4934770A (en) * | 1986-03-12 | 1990-06-19 | Beltone Electronics | Electronic compression system |
US4829270A (en) * | 1986-03-12 | 1989-05-09 | Beltone Electronics Corporation | Compansion system |
US4912393A (en) * | 1986-03-12 | 1990-03-27 | Beltone Electronics Corporation | Voltage regulator with variable reference outputs for a hearing aid |
US4792977A (en) * | 1986-03-12 | 1988-12-20 | Beltone Electronics Corporation | Hearing aid circuit |
US4952867A (en) * | 1986-03-12 | 1990-08-28 | Beltone Electronics Corporation | Base bias current compensator |
US4922131A (en) * | 1986-03-12 | 1990-05-01 | Beltone Electronics Corporation | Differential voltage threshold detector |
GB8701365D0 (en) * | 1987-01-22 | 1987-02-25 | Thomas L D | Signal level control |
JP3549611B2 (ja) * | 1995-04-17 | 2004-08-04 | 沖電気工業株式会社 | 多地点通信装置 |
US5745700A (en) * | 1996-05-13 | 1998-04-28 | International Business Machines Corporation | Multi media video matrix address decoder |
US5867530A (en) * | 1996-06-14 | 1999-02-02 | Trw Inc. | Method and apparatus for accomodating signal blockage in satellite mobile radio systems |
AUPO714197A0 (en) | 1997-06-02 | 1997-06-26 | University Of Melbourne, The | Multi-strategy array processor |
US6757396B1 (en) | 1998-11-16 | 2004-06-29 | Texas Instruments Incorporated | Digital audio dynamic range compressor and method |
WO2001022579A1 (en) * | 1999-09-23 | 2001-03-29 | Audio Toys, Inc. | Multi-channel audio compressor control circuit for linking individual channels together |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5031761A (ja) * | 1973-07-23 | 1975-03-28 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1160038B (de) * | 1960-01-26 | 1963-12-27 | Grundig Max | Verfahren und Vorrichtung zur UEbertragung von zwei oder mehreren Signalen |
FR1289247A (fr) * | 1960-05-18 | 1962-03-30 | Philips Nv | Dispositif pour enregistrer simultanément, avec une dynamique comprimée, deux ou plusieurs signaux principaux |
GB1012160A (en) * | 1964-01-29 | 1965-12-08 | Emi Ltd | Improvements relating to stereophonic transmission systems and receivers therefor |
GB1390341A (en) * | 1971-03-12 | 1975-04-09 | Dolby Laboratories Inc | Signal compressors and expanders |
US3732371A (en) * | 1971-05-10 | 1973-05-08 | Richard S Burwen | Wide dynamic range noise masking compandor |
GB1428963A (en) * | 1972-04-04 | 1976-03-24 | Dolby Laboratories Inc | Circuits for modifying the dynamic range of signals |
US4281217A (en) * | 1978-03-27 | 1981-07-28 | Dolby Ray Milton | Apparatus and method for the identification of specially encoded FM stereophonic broadcasts |
US4271439A (en) * | 1979-04-24 | 1981-06-02 | Polaroid Corporation | Electronic gain and noise control for recording of analog information |
JPS5744338A (en) * | 1980-08-29 | 1982-03-12 | Victor Co Of Japan Ltd | Noise reduction device |
-
1982
- 1982-08-27 JP JP1982129585U patent/JPS5933357U/ja active Pending
-
1983
- 1983-08-24 GB GB08322739A patent/GB2129659B/en not_active Expired
- 1983-08-26 US US06/526,843 patent/US4535471A/en not_active Expired - Fee Related
- 1983-08-26 DE DE19833330882 patent/DE3330882A1/de not_active Ceased
- 1983-08-29 FR FR8313844A patent/FR2532496B1/fr not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5031761A (ja) * | 1973-07-23 | 1975-03-28 |
Also Published As
Publication number | Publication date |
---|---|
US4535471A (en) | 1985-08-13 |
FR2532496B1 (fr) | 1986-09-19 |
GB8322739D0 (en) | 1983-09-28 |
DE3330882A1 (de) | 1984-03-01 |
GB2129659B (en) | 1986-07-02 |
GB2129659A (en) | 1984-05-16 |
FR2532496A1 (fr) | 1984-03-02 |
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