JPH04271395A - System discriminating method for input video signal of multiscan monitor and multiscan monitor - Google Patents

System discriminating method for input video signal of multiscan monitor and multiscan monitor

Info

Publication number
JPH04271395A
JPH04271395A JP3032987A JP3298791A JPH04271395A JP H04271395 A JPH04271395 A JP H04271395A JP 3032987 A JP3032987 A JP 3032987A JP 3298791 A JP3298791 A JP 3298791A JP H04271395 A JPH04271395 A JP H04271395A
Authority
JP
Japan
Prior art keywords
video signal
input video
system
memory
multiscan monitor
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.)
Granted
Application number
JP3032987A
Other versions
JP3141404B2 (en
Inventor
Shinichiro Miura
Yoshihisa Narui
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP03032987A priority Critical patent/JP3141404B2/en
Publication of JPH04271395A publication Critical patent/JPH04271395A/en
Application granted granted Critical
Publication of JP3141404B2 publication Critical patent/JP3141404B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To allow the setting of user systems of the number meeting a need and the well automatic discriminating of the system of an input video signal without being limited by the horizontal frequency fH of the input video signal, the state of a synchronizing signal, etc. CONSTITUTION:A memory 1 having a fixed system region 1a and a user system region 1b and a detecting means 2 which detects the horizontal frequency fH of the input video signal, the horizontal scanning line during one vertical period and the polarity of the synchronizing signal are provided. The user system region 1b of the memory 1 is first searched and thereafter the fixed system region la is searched in order to judge the system of this input video signal by the result of the detection with this detecting means 2 and the system information stored in the memory 1.
JP03032987A 1991-02-27 1991-02-27 System determination method for input video signal of multi-scan monitor and multi-scan monitor Expired - Lifetime JP3141404B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP03032987A JP3141404B2 (en) 1991-02-27 1991-02-27 System determination method for input video signal of multi-scan monitor and multi-scan monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03032987A JP3141404B2 (en) 1991-02-27 1991-02-27 System determination method for input video signal of multi-scan monitor and multi-scan monitor

Publications (2)

Publication Number Publication Date
JPH04271395A true JPH04271395A (en) 1992-09-28
JP3141404B2 JP3141404B2 (en) 2001-03-05

Family

ID=12374226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP03032987A Expired - Lifetime JP3141404B2 (en) 1991-02-27 1991-02-27 System determination method for input video signal of multi-scan monitor and multi-scan monitor

Country Status (1)

Country Link
JP (1) JP3141404B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08129367A (en) * 1994-10-31 1996-05-21 Nec Corp Judging and changing-over system for input video signal system
JPH08265793A (en) * 1995-03-27 1996-10-11 Nec Corp White balance control circuit and control method
WO2000035189A1 (en) * 1998-12-07 2000-06-15 Matsushita Electric Industrial Co., Ltd. Serial digital interface system transmission/reception method and device therefor
EP2043355A1 (en) 2007-09-25 2009-04-01 NEC Electronics Corporation Signal processing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08129367A (en) * 1994-10-31 1996-05-21 Nec Corp Judging and changing-over system for input video signal system
JPH08265793A (en) * 1995-03-27 1996-10-11 Nec Corp White balance control circuit and control method
WO2000035189A1 (en) * 1998-12-07 2000-06-15 Matsushita Electric Industrial Co., Ltd. Serial digital interface system transmission/reception method and device therefor
US6618095B1 (en) 1998-12-07 2003-09-09 Matsushita Electric Industrial Co., Ltd. Serial digital interface system transmission/reception method and device therefor
EP2043355A1 (en) 2007-09-25 2009-04-01 NEC Electronics Corporation Signal processing device

Also Published As

Publication number Publication date
JP3141404B2 (en) 2001-03-05

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