DE69218782D1 - Rückgewinnung der tonsignalen von einer optischen aufzeichnung von variabeler breite - Google Patents

Rückgewinnung der tonsignalen von einer optischen aufzeichnung von variabeler breite

Info

Publication number
DE69218782D1
DE69218782D1 DE69218782T DE69218782T DE69218782D1 DE 69218782 D1 DE69218782 D1 DE 69218782D1 DE 69218782 T DE69218782 T DE 69218782T DE 69218782 T DE69218782 T DE 69218782T DE 69218782 D1 DE69218782 D1 DE 69218782D1
Authority
DE
Germany
Prior art keywords
recovery
optical recording
sound signals
variable width
variable
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.)
Expired - Lifetime
Application number
DE69218782T
Other languages
English (en)
Inventor
James Murphy
Martin Richards
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Application granted granted Critical
Publication of DE69218782D1 publication Critical patent/DE69218782D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G11B20/02—Analogue recording or reproducing
    • G11B20/025—Error detection or correction
    • 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
    • G11B20/00992—Circuits for stereophonic or quadraphonic recording or reproducing
    • 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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
    • G11B7/0032—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent for moving-picture soundtracks, i.e. cinema

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Color Television Image Signal Generators (AREA)
DE69218782T 1991-09-05 1992-09-04 Rückgewinnung der tonsignalen von einer optischen aufzeichnung von variabeler breite Expired - Lifetime DE69218782D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/756,187 US5237559A (en) 1991-09-05 1991-09-05 Reproduction of sound track signals by varying the detector threshold level as a function of the transverse scan position
PCT/US1992/007563 WO1993005507A1 (en) 1991-09-05 1992-09-04 Recovering audio signals from a variable-area optical record

Publications (1)

Publication Number Publication Date
DE69218782D1 true DE69218782D1 (de) 1997-05-07

Family

ID=25042386

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69218782T Expired - Lifetime DE69218782D1 (de) 1991-09-05 1992-09-04 Rückgewinnung der tonsignalen von einer optischen aufzeichnung von variabeler breite

Country Status (7)

Country Link
US (1) US5237559A (de)
EP (1) EP0604517B1 (de)
JP (1) JPH06510391A (de)
AU (1) AU658671B2 (de)
CA (1) CA2116034A1 (de)
DE (1) DE69218782D1 (de)
WO (1) WO1993005507A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06506555A (ja) * 1991-02-04 1994-07-21 ドルビー・ラボラトリーズ・ライセンシング・コーポレーション オーバーサンプリングによる情報復元のための記憶媒体、装置、及び方法
JPH06332084A (ja) * 1993-05-25 1994-12-02 Sony Corp 映画フィルム用ディジタル情報再生装置
US6351302B1 (en) * 2000-05-11 2002-02-26 Carlsen, Ii George D. Analog sound track digitizer
US7400821B2 (en) * 2000-09-11 2008-07-15 Thomson Licensing Device and method for reproducing photographic sound recordings
US7053978B2 (en) * 2001-09-17 2006-05-30 Technicolor Inc. Correction of optical film soundtrack deficiencies
US7126663B2 (en) * 2001-09-17 2006-10-24 Technicolor Inc. Variable area film soundtrack renovation
US7366461B1 (en) * 2004-05-17 2008-04-29 Wendell Brown Method and apparatus for improving the quality of a recorded broadcast audio program
WO2006000231A1 (en) * 2004-06-29 2006-01-05 Laser Interface A/S An optical sound track scanner system
CN102017402B (zh) 2007-12-21 2015-01-07 Dts有限责任公司 用于调节音频信号的感知响度的系统
US8538042B2 (en) 2009-08-11 2013-09-17 Dts Llc System for increasing perceived loudness of speakers
US9312829B2 (en) 2012-04-12 2016-04-12 Dts Llc System for adjusting loudness of audio signals in real time

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE447615A (de) * 1941-08-30
US2347084A (en) * 1942-09-15 1944-04-18 Rca Corp Noiseless sound system
US2615991A (en) * 1948-06-11 1952-10-28 Rca Corp Sound reproducing method and system
US2575445A (en) * 1948-10-01 1951-11-20 Anthony E Neidt Scanning of sound records
US3124784A (en) * 1959-12-23 1964-03-10 Cathode ray tube printer
GB1508802A (en) * 1974-05-22 1978-04-26 Agfa Gevaert Coating of viscous aqueous gelatin compositions on a continuous web support
GB1525691A (en) * 1974-08-27 1978-09-20 Dolby Laboratories Inc Reproduction of optical sound tracks
US4223188A (en) * 1977-03-18 1980-09-16 Dolby Laboratories, Inc. Scanning system for reproduction of optical sound tracks with clear area noise discriminator delay means
US4124784A (en) * 1977-05-23 1978-11-07 Dbx, Inc. Motion picture sound system
US4355383A (en) * 1977-06-03 1982-10-19 Dolby Laboratories Licensing Corporation Apparatus for scanning variable area optical sound tracks by parallel processing discrete photosensor outputs
US4577302A (en) * 1983-03-14 1986-03-18 Dolby Laboratories Licensing Corporation Apparatus for reproducing motion picture film photographic sound-tracks to correct reproduction errors and reduce noise
US4482583A (en) * 1983-05-20 1984-11-13 Miles Laboratories, Inc. Process for sealing reagent ribbons
DE3631195A1 (de) * 1986-05-16 1987-11-19 Miles Lab Verfahren zur herstellung von teststreifen durch impraegnieren saugfaehiger substrate

Also Published As

Publication number Publication date
WO1993005507A1 (en) 1993-03-18
AU2581092A (en) 1993-04-05
EP0604517A1 (de) 1994-07-06
CA2116034A1 (en) 1993-03-18
AU658671B2 (en) 1995-04-27
JPH06510391A (ja) 1994-11-17
US5237559A (en) 1993-08-17
EP0604517B1 (de) 1997-04-02

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Legal Events

Date Code Title Description
8332 No legal effect for de