JPS6484985A - Special reproducing detection circuit for video disk - Google Patents

Special reproducing detection circuit for video disk

Info

Publication number
JPS6484985A
JPS6484985A JP62241740A JP24174087A JPS6484985A JP S6484985 A JPS6484985 A JP S6484985A JP 62241740 A JP62241740 A JP 62241740A JP 24174087 A JP24174087 A JP 24174087A JP S6484985 A JPS6484985 A JP S6484985A
Authority
JP
Japan
Prior art keywords
circuit
signal
frame
inter
outputted
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
JP62241740A
Other languages
Japanese (ja)
Other versions
JPH0779485B2 (en
Inventor
Kazuo Mochizuki
Yukinori Senju
Toshinori Shimoyana
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric Co 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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP62241740A priority Critical patent/JPH0779485B2/en
Publication of JPS6484985A publication Critical patent/JPS6484985A/en
Publication of JPH0779485B2 publication Critical patent/JPH0779485B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:To obtain a detection circuit for special reproduction with a few hardware by using a one-frame delay circuit in common to a moving detection circuit utilizing the inter-frame correlation of an NTSC standard signal. CONSTITUTION:An inter-frame addition value of color signals included in an output of a subtraction circuit 12 is eliminated by an LPF 13 and only a difference signal of a luminance signal is fed to a coring circuit 15. On the other hand, a summing signal between an adjacent inter-frame difference signal of a color signal and an adjacent inter-frame addition signal of a luminance signal are outputted from an adder circuit 16. The signal is a signal representing the level of an edge by a differentiation circuit 17 and the result is fed to the circuit 15. The circuit 15 sets a nonresponse area expanded with the increase in the edge represented by the output of the circuit 18 with respect to the luminance difference signal outputted from the circuit 14. The output of the circuit 15 is converted to a prescribed coefficient by a coefficient generating circuit 19 and outputted as a signal indicating the level of movement.
JP62241740A 1987-09-26 1987-09-26 Video disc special playback detection circuit Expired - Lifetime JPH0779485B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62241740A JPH0779485B2 (en) 1987-09-26 1987-09-26 Video disc special playback detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62241740A JPH0779485B2 (en) 1987-09-26 1987-09-26 Video disc special playback detection circuit

Publications (2)

Publication Number Publication Date
JPS6484985A true JPS6484985A (en) 1989-03-30
JPH0779485B2 JPH0779485B2 (en) 1995-08-23

Family

ID=17078836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62241740A Expired - Lifetime JPH0779485B2 (en) 1987-09-26 1987-09-26 Video disc special playback detection circuit

Country Status (1)

Country Link
JP (1) JPH0779485B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5501387A (en) * 1993-01-18 1996-03-26 Max Co., Ltd. Staple cartridge and staple sheet pack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5501387A (en) * 1993-01-18 1996-03-26 Max Co., Ltd. Staple cartridge and staple sheet pack

Also Published As

Publication number Publication date
JPH0779485B2 (en) 1995-08-23

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