GB1388832A - Television signal monitoring systems - Google Patents

Television signal monitoring systems

Info

Publication number
GB1388832A
GB1388832A GB1577071A GB1577071A GB1388832A GB 1388832 A GB1388832 A GB 1388832A GB 1577071 A GB1577071 A GB 1577071A GB 1577071 A GB1577071 A GB 1577071A GB 1388832 A GB1388832 A GB 1388832A
Authority
GB
United Kingdom
Prior art keywords
signal
pulses
vision
sync
sound
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
GB1577071A
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.)
Pye Electronic Products Ltd
Original Assignee
Pye Ltd
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 Pye Ltd filed Critical Pye Ltd
Priority to GB1577071A priority Critical patent/GB1388832A/en
Publication of GB1388832A publication Critical patent/GB1388832A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/084—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only
    • H04N7/085—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only the inserted signal being digital

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Television Systems (AREA)

Abstract

1388832 Monitoring television signals PYE Ltd 8 May 1972 [19 May 1971] 15770/71 Heading H4L In a method of monitoring for the presence of the sound signal in a "sound-in-sync." television signal, the sync. pulses are separated and pulses derived therefrom, one edge of which occurs within the period occupied by the vision content of the television signal, the television signal being applied to a vision monitor having a display triggered by said derived pulses whereby the sound signal appearing in the blanking period and at least a portion of the vision signal are displayed simultaneously. As described, the composite signal comprising line sync. pulses, picture signal and sound digits occurring within each line sync. pulse is supplied to a unit which removes the sound pulses. The sync. pulses are separated from the resulting signal, and these pulses are delayed by half a line period and used to trigger the display of the vision monitor. A second blanking pulse occurring at the flyback period of the vision monitor may be inserted into the signal to prevent illumination of the display during this period. Switching is provided so that if it is desired to monitor the vision content of the signal, the line sync. pulses are used to trigger the vision monitor.
GB1577071A 1971-05-19 1971-05-19 Television signal monitoring systems Expired GB1388832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1577071A GB1388832A (en) 1971-05-19 1971-05-19 Television signal monitoring systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1577071A GB1388832A (en) 1971-05-19 1971-05-19 Television signal monitoring systems

Publications (1)

Publication Number Publication Date
GB1388832A true GB1388832A (en) 1975-03-26

Family

ID=10065179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1577071A Expired GB1388832A (en) 1971-05-19 1971-05-19 Television signal monitoring systems

Country Status (1)

Country Link
GB (1) GB1388832A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008051387A2 (en) * 2006-10-25 2008-05-02 Macrovision Corporation Method and apparatus to improve playability in overscan areas of a tv display

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008051387A2 (en) * 2006-10-25 2008-05-02 Macrovision Corporation Method and apparatus to improve playability in overscan areas of a tv display
WO2008051387A3 (en) * 2006-10-25 2008-12-04 Macrovision Corp Method and apparatus to improve playability in overscan areas of a tv display
AU2007309640B2 (en) * 2006-10-25 2011-03-10 Rovi Solutions Corporation Method and apparatus to improve playability in overscan areas of a TV display
CN101569208B (en) * 2006-10-25 2011-06-29 罗威解决方案公司 Method and apparatus to improve playability in overscan areas of a TV display

Similar Documents

Publication Publication Date Title
HK213096A (en) Video display system for wide and standard aspect ratio video signals
AU564501B2 (en) Timing generator for sync suppressed television signals
CA1264372C (en) Television signal processing circuit
AU533980B2 (en) Decoding composite pal television signals
GB1388832A (en) Television signal monitoring systems
EP0173539A3 (en) Digital video signal processor with analog level control
CA953019A (en) Apparatus for blanking portion of fields of television video signals
FR2411528A1 (en)
CA1007363A (en) Television receiver using synchronous video detection
IE34887B1 (en) Color television receiver
CA943663A (en) Color television receiver for use in pal system
CA937323A (en) Video signal control circuit for color television
GB1356193A (en) Processing and or distributing television signals
GB1486774A (en) Television systems
EP0110689B1 (en) Television receivers
JPS5397725A (en) Television picture receiver possessing waveform display function
JPS5398727A (en) Interpolation reproducing system for video signal
GB1522560A (en) Colour television system
GB1175722A (en) Television Colour Synchronisation
JPS53102625A (en) Transmission system of horizontal blanking waveform for television signal
AU429640B2 (en) Color television receiver for use in pal system
JPS5422126A (en) Color television picture receiver
CA832174A (en) Composite television signal blanking apparatus
AU6221165A (en) Colour television receiver for signals ofthe ntsc system
CA895571A (en) Television blanking and synchronizing signal generator

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees