HK15691A - Audio/video quality monitoring system - Google Patents

Audio/video quality monitoring system

Info

Publication number
HK15691A
HK15691A HK156/91A HK15691A HK15691A HK 15691 A HK15691 A HK 15691A HK 156/91 A HK156/91 A HK 156/91A HK 15691 A HK15691 A HK 15691A HK 15691 A HK15691 A HK 15691A
Authority
HK
Hong Kong
Prior art keywords
quality
input signal
audio
unit
signal
Prior art date
Application number
HK156/91A
Other languages
English (en)
Inventor
Edward Efron
James Oliver Mcpherson
Young Been Kim
Original Assignee
Discovision Ass
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 Ass filed Critical Discovision Ass
Publication of HK15691A publication Critical patent/HK15691A/xx

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Studio Devices (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Stereophonic System (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Circuits Of Receivers In General (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
HK156/91A 1982-01-12 1991-03-07 Audio/video quality monitoring system HK15691A (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
HK15691A true HK15691A (en) 1991-03-15

Family

ID=23327082

Family Applications (6)

Application Number Title Priority Date Filing Date
HK156/91A HK15691A (en) 1982-01-12 1991-03-07 Audio/video quality monitoring system
HK160/91A HK16091A (en) 1982-01-12 1991-03-07 Method and apparatus for analyzing the information transfer characteristics of a recording medium
HK154/91A HK15491A (en) 1982-01-12 1991-03-07 Method of and apparatus for establishing the characteristics of a prerecorded two-channel audio program
HK208/91A HK20891A (en) 1982-01-12 1991-03-21 Method of evaluating and apparatus for analyzing recording characteristics of a recording medium with a prescribed analog electrical signal
HK299/91A HK29991A (en) 1982-01-12 1991-04-18 Method of and apparatus for analyzing the signal transfer characteristics of a signal processing unit
HK300/91A HK30091A (en) 1982-01-12 1991-04-18 Apparatus for signal evaluation by accumulation at one rate and releasing and testing at a slower rate

Family Applications After (5)

Application Number Title Priority Date Filing Date
HK160/91A HK16091A (en) 1982-01-12 1991-03-07 Method and apparatus for analyzing the information transfer characteristics of a recording medium
HK154/91A HK15491A (en) 1982-01-12 1991-03-07 Method of and apparatus for establishing the characteristics of a prerecorded two-channel audio program
HK208/91A HK20891A (en) 1982-01-12 1991-03-21 Method of evaluating and apparatus for analyzing recording characteristics of a recording medium with a prescribed analog electrical signal
HK299/91A HK29991A (en) 1982-01-12 1991-04-18 Method of and apparatus for analyzing the signal transfer characteristics of a signal processing unit
HK300/91A HK30091A (en) 1982-01-12 1991-04-18 Apparatus for signal evaluation by accumulation at one rate and releasing and testing at a slower rate

Country Status (7)

Country Link
US (1) US4746991A (xx)
EP (9) EP0116135B1 (xx)
JP (2) JPH0711548B2 (xx)
KR (2) KR880002665B1 (xx)
AT (5) ATE31991T1 (xx)
DE (1) DE3272153D1 (xx)
HK (6) HK15691A (xx)

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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
US5265079A (en) 1991-02-15 1993-11-23 Applied Magnetics Corporation Seek actuator for optical recording
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
US5121260A (en) * 1989-06-22 1992-06-09 Digital Equipment Corporation Read channel optimization system
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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
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
US5808980A (en) * 1991-02-15 1998-09-15 Discovision Associates Seek actuator for optical recording
US6069857A (en) 1991-02-15 2000-05-30 Discovision Associates Optical disc system having improved circuitry for performing blank sector check on readable disc
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
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
DE69330478T2 (de) * 1992-04-10 2002-05-16 Wea Mfg 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
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
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
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
EP1245118A2 (en) 1999-12-03 2002-10-02 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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Also Published As

Publication number Publication date
EP0152535A3 (en) 1985-10-02
KR880002665B1 (ko) 1988-12-17
EP0309639A2 (en) 1989-04-05
HK20891A (en) 1991-03-28
KR840001716A (ko) 1984-05-16
KR880002667B1 (ko) 1988-12-17
EP0113426A1 (en) 1984-07-18
DE3272153D1 (en) 1986-08-28
US4746991A (en) 1988-05-24
EP0113425A1 (en) 1984-07-18
EP0116135A1 (en) 1984-08-22
EP0083686B1 (en) 1986-07-23
JPS58120173A (ja) 1983-07-16
ATE37112T1 (de) 1988-09-15
EP0116135B1 (en) 1988-09-07
EP0113425B1 (en) 1988-01-13
EP0117908A1 (en) 1984-09-12
EP0117910A1 (en) 1984-09-12
EP0083686A1 (en) 1983-07-20
ATE31991T1 (de) 1988-01-15
EP0309639A3 (en) 1989-04-12
ATE28713T1 (de) 1987-08-15
ATE28958T1 (de) 1987-08-15
EP0117908B1 (en) 1987-08-12
HK16091A (en) 1991-03-15
ATE29638T1 (de) 1987-09-15
HK30091A (en) 1991-04-26
JPH0711548B2 (ja) 1995-02-08
JP2839058B2 (ja) 1998-12-16
EP0117909A1 (en) 1984-09-12
EP0113426B1 (en) 1987-09-09
HK15491A (en) 1991-03-15
EP0152535A2 (en) 1985-08-28
EP0117910B1 (en) 1987-07-29
HK29991A (en) 1991-04-26
JPH0778423A (ja) 1995-03-20

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Legal Events

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PE Patent expired