DE3272153D1 - Audio/video quality monitoring system - Google Patents

Audio/video quality monitoring system

Info

Publication number
DE3272153D1
DE3272153D1 DE8282108473T DE3272153T DE3272153D1 DE 3272153 D1 DE3272153 D1 DE 3272153D1 DE 8282108473 T DE8282108473 T DE 8282108473T DE 3272153 T DE3272153 T DE 3272153T DE 3272153 D1 DE3272153 D1 DE 3272153D1
Authority
DE
Germany
Prior art keywords
quality
input signal
audio
unit
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.)
Expired
Application number
DE8282108473T
Other languages
English (en)
Inventor
Edward Efron
James Oliver Mcpherson
Young Been Kim
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.)
Discovision Associates
Original Assignee
Discovision Associates
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 Discovision Associates filed Critical Discovision Associates
Application granted granted Critical
Publication of DE3272153D1 publication Critical patent/DE3272153D1/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • G11B20/182—Testing using test patterns
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
    • G11B27/024—Electronic editing of analogue information signals, e.g. audio or video signals on tapes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
    • G11B27/028—Electronic editing of analogue information signals, e.g. audio or video signals with computer assistance
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/06—Diagnosis, testing or measuring for television systems or their details for recorders
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
DE8282108473T 1982-01-12 1982-09-14 Audio/video quality monitoring system Expired DE3272153D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/339,011 US4746991A (en) 1982-01-12 1982-01-12 Recording characteristic evaluation of a recording medium with a time sequence of test signals

Publications (1)

Publication Number Publication Date
DE3272153D1 true DE3272153D1 (en) 1986-08-28

Family

ID=23327082

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282108473T Expired DE3272153D1 (en) 1982-01-12 1982-09-14 Audio/video quality monitoring system

Country Status (7)

Country Link
US (1) US4746991A (de)
EP (9) EP0117910B1 (de)
JP (2) JPH0711548B2 (de)
KR (2) KR880002665B1 (de)
AT (5) ATE28958T1 (de)
DE (1) DE3272153D1 (de)
HK (6) HK15691A (de)

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US4746991A (en) * 1982-01-12 1988-05-24 Discovision Associates Recording characteristic evaluation of a recording medium with a time sequence of test signals
US4773094A (en) * 1985-12-23 1988-09-20 Dolby Ray Milton Apparatus and method for calibrating recording and transmission systems
US5148291A (en) * 1986-05-21 1992-09-15 Canon Kabushiki Kaisha Apparatus for displaying image signal drop-out
US4752825A (en) * 1986-10-10 1988-06-21 Grumman Aerospace Corporation Video display simulator and analyzer
JPH0337801A (ja) * 1989-07-04 1991-02-19 Jonan Denki Kogyosho:Kk 記録済ビデオ・テープの検査装置
US6141300A (en) 1989-06-20 2000-10-31 Discovision Associates Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same
US5265079A (en) 1991-02-15 1993-11-23 Applied Magnetics Corporation Seek actuator for optical recording
US5121260A (en) * 1989-06-22 1992-06-09 Digital Equipment Corporation Read channel optimization system
JPH03178057A (ja) * 1989-12-06 1991-08-02 Sony Corp ディスク評価装置
GB2239976B (en) * 1989-12-20 1993-12-22 Toshiba Emi Kk Method of inspecting pancake tape
US5677899A (en) 1991-02-15 1997-10-14 Discovision Associates Method for moving carriage assembly from initial position to target position relative to storage medium
US5808980A (en) * 1991-02-15 1998-09-15 Discovision Associates Seek actuator for optical recording
US5729511A (en) 1991-02-15 1998-03-17 Discovision Associates Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal
US6069857A (en) 1991-02-15 2000-05-30 Discovision Associates Optical disc system having improved circuitry for performing blank sector check on readable disc
US6236625B1 (en) 1991-02-15 2001-05-22 Discovision Associates Optical disc system having current monitoring circuit with controller for laser driver and method for operating same
DE4124378A1 (de) * 1991-07-23 1993-01-28 Basf Magnetics Gmbh Verfahren zur automatischen qualitaetsueberwachung von audio-video-programmen, welche auf einem aufzeichnungstraeger aufgezeichnet sind
US5363250A (en) * 1991-07-31 1994-11-08 U.S. Philips Corporation Prerecorded record carrier
JPH06131618A (ja) * 1991-12-27 1994-05-13 Teac Corp 磁気テ−プにおける基準信号の記録再生方法
US5357520A (en) * 1992-01-31 1994-10-18 International Business Machines Corporation Method and apparatus for precompensation value determination in a PRML data channel
GB9203911D0 (en) * 1992-02-24 1992-04-08 Emi Plc Thorn Alignment corresponding segments of a digital signal and a digital reference signal
US5812506A (en) * 1992-04-10 1998-09-22 Wea Manufacturing, Inc. System and methods for measuring and correcting for overshoot in a high frequency (HF) signal generated by a compact disc player during testing of a compact disc
EP0564916B1 (de) * 1992-04-10 2001-07-25 Wea Manufacturing Inc. Compact-Disc-Analysevorrichtung
US5450247A (en) * 1992-11-06 1995-09-12 Future Network, Inc. Simultaneous contact duplication of a plurality of magnetic copy tapes from a single magnetic master tape
US5424881A (en) 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
US6091684A (en) * 1995-01-25 2000-07-18 Discovision Associates Optical disc system and method for changing the rotational rate of an information storage medium
US5748578A (en) * 1995-01-25 1998-05-05 Discovision Associates Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same
US6434087B1 (en) 1995-01-25 2002-08-13 Discovision Associates Optical disc system and method for controlling bias coil and light source to process information on a storage medium
US5920539A (en) * 1995-01-25 1999-07-06 Discovision Associates Apparatus and method for suppression of electromagnetic emissions having a groove on an external surface for passing an electrical conductor
US6269482B1 (en) * 1997-07-14 2001-07-31 Altinex, Inc. Methods of testing electrical signals and compensating for degradation
US5927988A (en) * 1997-12-17 1999-07-27 Jenkins; William M. Method and apparatus for training of sensory and perceptual systems in LLI subjects
US6157505A (en) * 1998-06-19 2000-12-05 The United States Of America As Represented By The Secretary Of The Navy System and a method of operation thereof for analyzing the performance of a tape recorder
WO2001041452A2 (en) * 1999-12-03 2001-06-07 Mti Film, Llc System and method for identifying inconsistencies in duplicate digital videos
GB2407910B (en) 2003-11-05 2006-07-19 Zoo Digital Group Plc Automated testing of digital content
ITMI20040985A1 (it) * 2004-05-17 2004-08-17 Technicolor S P A Rilevamento automatico di soncronizzazione del suono
WO2007014325A2 (en) * 2005-07-27 2007-02-01 Doug Carson & Associates, Inc. Verifying provenance data associated with digital content
JP2008016128A (ja) * 2006-07-06 2008-01-24 Fujifilm Corp 記録媒体の検査方法、記録媒体の検査装置、記録媒体用ドライブ装置の検査方法及び記録媒体用ドライブ装置の検査装置
CN103747407B (zh) * 2013-12-27 2017-04-12 深圳英飞拓科技股份有限公司 一种基于fft扫频的音频模块自动化测试方法
CN106154096B (zh) * 2015-04-27 2019-12-10 中兴通讯股份有限公司 音频连接线检测方法和装置
CN105548865B (zh) * 2016-01-19 2018-07-06 歌尔股份有限公司 一种摄像头模组上电时序测试装置及测试方法
CN113096694B (zh) * 2019-12-23 2023-02-21 北京声智科技有限公司 一种电子终端的播放质量检测方法及电子终端

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US3225135A (en) * 1960-06-25 1965-12-21 Fuji Telecasting Co Ltd Method and apparatus for monitoring a television tape recording operation
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US3485961A (en) * 1966-09-30 1969-12-23 Eastman Kodak Co Control system for re-recorders which senses and compares original and copy records
US3551608A (en) * 1967-04-07 1970-12-29 Bell & Howell Co Discrepancy indicator for record duplicating apparatus
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US3517305A (en) * 1968-10-22 1970-06-23 Us Navy Magnetic tape tester in which,after comparison with a standard,an erroneous signal is stored for later analysis
US3659044A (en) * 1970-07-31 1972-04-25 Rca Corp Test system for electrical apparatus
DE2049259B1 (de) * 1970-10-07 1972-03-23 Fernseh Gmbh System zur selbsttätigen Prüfung von Video-Studiogeräten
US3864736A (en) * 1973-06-25 1975-02-04 Burroughs Corp Magnetic recording verification
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DE2536585C3 (de) * 1975-08-16 1981-04-02 Philips Patentverwaltung Gmbh, 2000 Hamburg Anordnung zur statistischen Signalanalyse
JPS5231777A (en) * 1975-09-04 1977-03-10 Matsushita Electric Ind Co Ltd S/n ratio measuring apparatus
JPS5937784B2 (ja) * 1975-12-20 1984-09-12 日本ビクター株式会社 ジキテ−プカラノ サイセイシンゴウノシンゴウレベルノ ヘイキンチハンテイホウシキ
JPS52123606A (en) * 1976-04-09 1977-10-18 Sony Corp Recorder/reproducer
DE2650891A1 (de) * 1976-11-06 1978-05-11 Basf Ag Verfahren und anordnungen zur qualitaetskontrolle bei signal-kopieranlagen
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DE2827422C3 (de) * 1978-06-22 1985-01-31 Wandel & Goltermann Gmbh & Co, 7412 Eningen Verfahren und Schaltungsanordnung zum Messen von Kennwerten eines Vierpols, insbesondere einer Datenübertragungsstrecke
JPS5575822A (en) * 1978-12-05 1980-06-07 Niigataken Hydraulic bulging method for metallic container
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JPS5733409A (en) * 1980-08-06 1982-02-23 Sony Corp Reproducer of coded signal
US4455634A (en) * 1982-01-12 1984-06-19 Discovision Associates Audio/video quality monitoring system
US4746991A (en) * 1982-01-12 1988-05-24 Discovision Associates Recording characteristic evaluation of a recording medium with a time sequence of test signals

Also Published As

Publication number Publication date
EP0309639A3 (de) 1989-04-12
US4746991A (en) 1988-05-24
HK15491A (en) 1991-03-15
ATE37112T1 (de) 1988-09-15
HK16091A (en) 1991-03-15
HK30091A (en) 1991-04-26
EP0117910A1 (de) 1984-09-12
EP0117908B1 (de) 1987-08-12
HK29991A (en) 1991-04-26
JP2839058B2 (ja) 1998-12-16
HK15691A (en) 1991-03-15
EP0116135B1 (de) 1988-09-07
EP0083686A1 (de) 1983-07-20
EP0117909A1 (de) 1984-09-12
EP0116135A1 (de) 1984-08-22
JPH0778423A (ja) 1995-03-20
EP0117910B1 (de) 1987-07-29
EP0113426B1 (de) 1987-09-09
EP0309639A2 (de) 1989-04-05
EP0117908A1 (de) 1984-09-12
KR840001716A (ko) 1984-05-16
KR880002667B1 (ko) 1988-12-17
HK20891A (en) 1991-03-28
EP0113425B1 (de) 1988-01-13
JPH0711548B2 (ja) 1995-02-08
KR880002665B1 (ko) 1988-12-17
EP0152535A3 (de) 1985-10-02
JPS58120173A (ja) 1983-07-16
EP0113426A1 (de) 1984-07-18
ATE31991T1 (de) 1988-01-15
ATE29638T1 (de) 1987-09-15
EP0083686B1 (de) 1986-07-23
ATE28713T1 (de) 1987-08-15
EP0152535A2 (de) 1985-08-28
ATE28958T1 (de) 1987-08-15
EP0113425A1 (de) 1984-07-18

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: DERZEIT KEIN VERTRETER BESTELLT

8328 Change in the person/name/address of the agent

Free format text: GRUENECKER, A., DIPL.-ING. KINKELDEY, H., DIPL.-ING. DR.-ING. STOCKMAIR, W., DIPL.-ING. DR.-ING. AE.E. CAL TECH SCHUMANN, K., DIPL.-PHYS. DR.RER.NAT. JAKOB, P., DIPL.-ING. BEZOLD, G., DIPL.-CHEM. DR.RER.NAT. MEISTER, W., DIPL.-ING. HILGERS, H., DIPL.-ING. MEYER-PLATH, H., DIPL.-ING. DR.-ING. EHNOLD, A., DIPL.-ING. SCHUSTER, T., DIPL.-PHYS. GOLDBACH, K., DIPL.-ING.DR.-ING. AUFENANGER, M., DIPL.-ING., PAT.-ANWAELTE, 8000 MUENCHEN