DE2512907A1 - Verfahren und geraet zum vergroessern des richtungsinformationsgehaltes von signalen - Google Patents
Verfahren und geraet zum vergroessern des richtungsinformationsgehaltes von signalenInfo
- Publication number
- DE2512907A1 DE2512907A1 DE19752512907 DE2512907A DE2512907A1 DE 2512907 A1 DE2512907 A1 DE 2512907A1 DE 19752512907 DE19752512907 DE 19752512907 DE 2512907 A DE2512907 A DE 2512907A DE 2512907 A1 DE2512907 A1 DE 2512907A1
- Authority
- DE
- Germany
- Prior art keywords
- signals
- output
- input
- matrix
- signal
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 34
- 239000011159 matrix material Substances 0.000 claims description 130
- 239000002131 composite material Substances 0.000 claims description 22
- 238000012545 processing Methods 0.000 claims description 22
- 238000009499 grossing Methods 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 14
- 230000004044 response Effects 0.000 claims description 10
- 230000001419 dependent effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 21
- 238000010168 coupling process Methods 0.000 claims 21
- 238000005859 coupling reaction Methods 0.000 claims 21
- 230000001105 regulatory effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 13
- 230000009466 transformation Effects 0.000 description 12
- 230000008859 change Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Analysis (AREA)
- General Physics & Mathematics (AREA)
- Algebra (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Stereophonic System (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB13047/74A GB1514162A (en) | 1974-03-25 | 1974-03-25 | Directional enhancement system for quadraphonic decoders |
| US05/472,291 US3944735A (en) | 1974-03-25 | 1974-05-22 | Directional enhancement system for quadraphonic decoders |
| CA222,932A CA1025365A (en) | 1974-03-25 | 1975-03-24 | Directional enhancement system for quadraphonic decoders |
| AU79485/75A AU496615B2 (en) | 1975-03-25 | Signal enhancement system | |
| FR7510144A FR2306591A1 (fr) | 1974-03-25 | 1975-04-01 | Systeme d'accroissement de directivite pour decodeurs quadriphoniques |
| JP50049239A JPS6053520B2 (ja) | 1974-03-25 | 1975-04-24 | ４チャンネルステレオデコ−ダ用方向性情報強調装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2512907A1 true DE2512907A1 (de) | 1975-10-09 |
Family
ID=32074786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752512907 Withdrawn DE2512907A1 (de) | 1974-03-25 | 1975-03-24 | Verfahren und geraet zum vergroessern des richtungsinformationsgehaltes von signalen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3944735A (OSRAM) |
| JP (1) | JPS6053520B2 (OSRAM) |
| CA (1) | CA1025365A (OSRAM) |
| DE (1) | DE2512907A1 (OSRAM) |
| FR (1) | FR2306591A1 (OSRAM) |
| GB (1) | GB1514162A (OSRAM) |
| NL (1) | NL7503603A (OSRAM) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018992A (en) * | 1975-09-25 | 1977-04-19 | Clifford H. Moulton | Decoder for quadraphonic playback |
| US4251688A (en) * | 1979-01-15 | 1981-02-17 | Ana Maria Furner | Audio-digital processing system for demultiplexing stereophonic/quadriphonic input audio signals into 4-to-72 output audio signals |
| US4532647A (en) * | 1981-08-19 | 1985-07-30 | John C. Bogue | Automatic dimension control for a directional enhancement system |
| US4525855A (en) * | 1981-08-27 | 1985-06-25 | John C. Bogue | Variable rate and variable limit dimension controls for a directional enhancement system |
| GB8402682D0 (en) * | 1984-02-01 | 1984-03-07 | Audim Sa | Stereophonic sound system |
| US4589129A (en) * | 1984-02-21 | 1986-05-13 | Kintek, Inc. | Signal decoding system |
| US4615043A (en) * | 1984-12-24 | 1986-09-30 | Don Latshaw | Triphonic sound system |
| US4704728A (en) * | 1984-12-31 | 1987-11-03 | Peter Scheiber | Signal re-distribution, decoding and processing in accordance with amplitude, phase, and other characteristics |
| US4799260A (en) * | 1985-03-07 | 1989-01-17 | Dolby Laboratories Licensing Corporation | Variable matrix decoder |
| US5046098A (en) * | 1985-03-07 | 1991-09-03 | Dolby Laboratories Licensing Corporation | Variable matrix decoder with three output channels |
| US4862502A (en) * | 1988-01-06 | 1989-08-29 | Lexicon, Inc. | Sound reproduction |
| US5504819A (en) * | 1990-06-08 | 1996-04-02 | Harman International Industries, Inc. | Surround sound processor with improved control voltage generator |
| US5339363A (en) * | 1990-06-08 | 1994-08-16 | Fosgate James W | Apparatus for enhancing monophonic audio signals using phase shifters |
| US5666424A (en) * | 1990-06-08 | 1997-09-09 | Harman International Industries, Inc. | Six-axis surround sound processor with automatic balancing and calibration |
| US5295189A (en) * | 1990-06-08 | 1994-03-15 | Fosgate James W | Control voltage generator for surround sound processor |
| US5172415A (en) * | 1990-06-08 | 1992-12-15 | Fosgate James W | Surround processor |
| US5136650A (en) * | 1991-01-09 | 1992-08-04 | Lexicon, Inc. | Sound reproduction |
| US5365219A (en) * | 1992-07-08 | 1994-11-15 | Michael Hung Chang | Conversation level warning device |
| US5291557A (en) * | 1992-10-13 | 1994-03-01 | Dolby Laboratories Licensing Corporation | Adaptive rematrixing of matrixed audio signals |
| DE29509157U1 (de) * | 1995-06-02 | 1995-09-21 | Clausonet, Rudolf, 55442 Daxweiler | Gerät zur Erzeugung von Raumklang aus Stereosignalen von Tonquellen |
| US5642423A (en) * | 1995-11-22 | 1997-06-24 | Sony Corporation | Digital surround sound processor |
| US5727068A (en) * | 1996-03-01 | 1998-03-10 | Cinema Group, Ltd. | Matrix decoding method and apparatus |
| US5870480A (en) * | 1996-07-19 | 1999-02-09 | Lexicon | Multichannel active matrix encoder and decoder with maximum lateral separation |
| US5796844A (en) * | 1996-07-19 | 1998-08-18 | Lexicon | Multichannel active matrix sound reproduction with maximum lateral separation |
| US7085387B1 (en) * | 1996-11-20 | 2006-08-01 | Metcalf Randall B | Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources |
| US6005948A (en) * | 1997-03-21 | 1999-12-21 | Sony Corporation | Audio channel mixing |
| SE521465C2 (sv) | 1999-06-07 | 2003-11-04 | Ericsson Telefon Ab L M | Mobiltelefon med taligenkänningssystem innehållande en beräkningsenhet för spektralavstånd. |
| US6239348B1 (en) * | 1999-09-10 | 2001-05-29 | Randall B. Metcalf | Sound system and method for creating a sound event based on a modeled sound field |
| US7003467B1 (en) * | 2000-10-06 | 2006-02-21 | Digital Theater Systems, Inc. | Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio |
| CA2499754A1 (en) * | 2002-09-30 | 2004-04-15 | Electro Products, Inc. | System and method for integral transference of acoustical events |
| WO2006050353A2 (en) * | 2004-10-28 | 2006-05-11 | Verax Technologies Inc. | A system and method for generating sound events |
| CA2598575A1 (en) * | 2005-02-22 | 2006-08-31 | Verax Technologies Inc. | System and method for formatting multimode sound content and metadata |
| US20100223552A1 (en) * | 2009-03-02 | 2010-09-02 | Metcalf Randall B | Playback Device For Generating Sound Events |
| GB2502618A (en) * | 2012-06-01 | 2013-12-04 | British Sky Broadcasting Ltd | Surround Sound Speaker System with Wireless Rear Speakers |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3812295A (en) * | 1970-10-19 | 1974-05-21 | Columbia Broadcasting Syst Inc | Quadraphonic reproducing system with gain riding logic |
| US3821471A (en) * | 1971-03-15 | 1974-06-28 | Cbs Inc | Apparatus for reproducing quadraphonic sound |
| US3798373A (en) * | 1971-06-23 | 1974-03-19 | Columbia Broadcasting Syst Inc | Apparatus for reproducing quadraphonic sound |
| JPS5213082B1 (OSRAM) * | 1971-07-19 | 1977-04-12 | ||
| US3794781A (en) * | 1971-09-01 | 1974-02-26 | Columbia Broadcasting Syst Inc | Four channel decoder with improved gain control |
| GB1402320A (en) * | 1971-10-25 | 1975-08-06 | Sansui Electric Co | Decoder for use in 4-2-4 matrix playback system |
| JPS5235282B2 (OSRAM) * | 1972-09-09 | 1977-09-08 | ||
| US3829615A (en) * | 1972-10-04 | 1974-08-13 | Mitsubishi Electric Corp | Quaternary stereophonic sound reproduction apparatus |
-
1974
- 1974-03-25 GB GB13047/74A patent/GB1514162A/en not_active Expired
- 1974-05-22 US US05/472,291 patent/US3944735A/en not_active Expired - Lifetime
-
1975
- 1975-03-24 CA CA222,932A patent/CA1025365A/en not_active Expired
- 1975-03-24 DE DE19752512907 patent/DE2512907A1/de not_active Withdrawn
- 1975-03-25 NL NL7503603A patent/NL7503603A/xx not_active Application Discontinuation
- 1975-04-01 FR FR7510144A patent/FR2306591A1/fr active Granted
- 1975-04-24 JP JP50049239A patent/JPS6053520B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3944735A (en) | 1976-03-16 |
| JPS6053520B2 (ja) | 1985-11-26 |
| NL7503603A (nl) | 1975-09-29 |
| FR2306591A1 (fr) | 1976-10-29 |
| JPS50153602A (OSRAM) | 1975-12-10 |
| AU7948575A (en) | 1976-09-30 |
| GB1514162A (en) | 1978-06-14 |
| CA1025365A (en) | 1978-01-31 |
| FR2306591B3 (OSRAM) | 1977-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |