DK0571774T3 - Process and video recorder for post-processing video recordings - Google Patents

Process and video recorder for post-processing video recordings

Info

Publication number
DK0571774T3
DK0571774T3 DK93106951.2T DK93106951T DK0571774T3 DK 0571774 T3 DK0571774 T3 DK 0571774T3 DK 93106951 T DK93106951 T DK 93106951T DK 0571774 T3 DK0571774 T3 DK 0571774T3
Authority
DK
Denmark
Prior art keywords
video
post
recording
information
processing
Prior art date
Application number
DK93106951.2T
Other languages
Danish (da)
Inventor
Wolfgang Kornhaas
Manfred Dipl-Ing Fh Richter
Original Assignee
Ir3 Video Int Gmbh
Grundig Emv
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 Ir3 Video Int Gmbh, Grundig Emv filed Critical Ir3 Video Int Gmbh
Application granted granted Critical
Publication of DK0571774T3 publication Critical patent/DK0571774T3/en

Links

Classifications

    • 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
    • G11B27/029—Insert-editing
    • 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
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • G11B27/3036—Time code signal
    • G11B27/3054—Vertical Interval Time code [VITC]
    • 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
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
    • G11B27/324—Duty cycle modulation of control pulses, e.g. VHS-CTL-coding systems, RAPID-time code, VASS- or VISS-cue signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/9201—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal
    • H04N5/9206—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal the additional signal being a character code signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

The invention relates to a video recorder for the post-processing of video recordings which allows the subsequent insertion of information into sections of the recording tracks which usually contain no visible video information. In the case of video recorders with frequency-modulated sound recording, such post-processing causes interference to the audio signal. In the case of the video recorder according to the invention, interferences to the audio signal are avoided by using a lower recording current in the subsequent recording of information than in the preceding recording of the video information. <IMAGE>
DK93106951.2T 1992-05-23 1993-04-29 Process and video recorder for post-processing video recordings DK0571774T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4217207A DE4217207C1 (en) 1992-05-23 1992-05-23

Publications (1)

Publication Number Publication Date
DK0571774T3 true DK0571774T3 (en) 1995-11-13

Family

ID=6459646

Family Applications (1)

Application Number Title Priority Date Filing Date
DK93106951.2T DK0571774T3 (en) 1992-05-23 1993-04-29 Process and video recorder for post-processing video recordings

Country Status (4)

Country Link
EP (1) EP0571774B1 (en)
AT (1) ATE127953T1 (en)
DE (2) DE4217207C1 (en)
DK (1) DK0571774T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6487362B1 (en) 1991-08-19 2002-11-26 Index Systems, Inc. Enhancing operations of video tape cassette players
US6091884A (en) * 1991-08-19 2000-07-18 Index Systems, Inc. Enhancing operations of video tape cassette players
DE4236872A1 (en) * 1992-10-31 1994-05-05 Grundig Emv Process for securing a video recorder against unauthorized use and device for carrying out the process
TW259866B (en) * 1993-12-30 1995-10-11 Yuen Henry C

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3504354A1 (en) * 1984-02-10 1985-08-22 Pioneer Electronic Corp., Tokio/Tokyo TAPE POSITION DATA RECORDING AND PLAYBACK METHOD
JPH02226912A (en) * 1989-02-28 1990-09-10 Victor Co Of Japan Ltd Switching circuit
DE3925628C2 (en) * 1989-08-03 1998-04-09 Grundig Ag Magnetic tape device, in particular video recorder, with a device for hi-fi stereo dubbing
DE4014513A1 (en) * 1990-05-07 1991-11-14 Nokia Unterhaltungselektronik VIDEO RECORDER
JPH05166349A (en) * 1991-12-13 1993-07-02 Victor Co Of Japan Ltd Magnetic recording and reproducing device

Also Published As

Publication number Publication date
EP0571774A2 (en) 1993-12-01
DE4217207C1 (en) 1992-12-17
EP0571774A3 (en) 1993-12-15
DE59300580D1 (en) 1995-10-19
EP0571774B1 (en) 1995-09-13
ATE127953T1 (en) 1995-09-15

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