JPS645176A - Video signal recording and reproducing device - Google Patents

Video signal recording and reproducing device

Info

Publication number
JPS645176A
JPS645176A JP62160347A JP16034787A JPS645176A JP S645176 A JPS645176 A JP S645176A JP 62160347 A JP62160347 A JP 62160347A JP 16034787 A JP16034787 A JP 16034787A JP S645176 A JPS645176 A JP S645176A
Authority
JP
Japan
Prior art keywords
speed
variable
video signal
recording
reproducing device
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
JP62160347A
Other languages
Japanese (ja)
Other versions
JP2804757B2 (en
Inventor
Yoshiyuki Inoue
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62160347A priority Critical patent/JP2804757B2/en
Priority to CA000550118A priority patent/CA1316593C/en
Priority to NL8702558A priority patent/NL194878C/en
Priority to DE19873737054 priority patent/DE3737054C3/en
Publication of JPS645176A publication Critical patent/JPS645176A/en
Priority to US07/816,844 priority patent/US5214515A/en
Priority to US08/024,488 priority patent/US5339165A/en
Priority to US08/273,921 priority patent/US5446552A/en
Application granted granted Critical
Publication of JP2804757B2 publication Critical patent/JP2804757B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To eliminate a decrease in S/N ratio and a fixed noise band by controlling the traveling speed of a magnetic tape in variable speed reproduction to speed of specific times as fast as in recording. CONSTITUTION:Envelope detecting circuits 7a and 7b fetch the envelope of a reproducing FM signal and comparators 8a and 8b compare the outputs of the envelope detecting circuits 7a and 7b with specific levels, are provided. Then a traveling control circuit 13 controls the traveling speed of the magnetic tape in variable-speed reproduction to N+1/L times(N:0, + or -1, + or -2,...) as fast as in recording, where L(L=1) is the number of channels. Consequently, a high speed reproducing image is obtained by using a field memory 6 and excellent variable-speed reproduction which is free from a decrease in S/N ratio and a fixed noise band is performed.
JP62160347A 1986-10-28 1987-06-26 Video signal recording and playback device Expired - Fee Related JP2804757B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP62160347A JP2804757B2 (en) 1987-06-26 1987-06-26 Video signal recording and playback device
CA000550118A CA1316593C (en) 1986-10-28 1987-10-23 Video recorder with noise-free high-speed playback
DE19873737054 DE3737054C3 (en) 1986-10-28 1987-10-28 Video signal recording / playback device
NL8702558A NL194878C (en) 1986-10-28 1987-10-28 Video signal recording and reproducing device.
US07/816,844 US5214515A (en) 1986-10-28 1991-12-31 Video signal recording/reproducing apparatus
US08/024,488 US5339165A (en) 1986-10-28 1993-03-01 Video signal recording/reproducing apparatus
US08/273,921 US5446552A (en) 1986-10-28 1994-07-12 Video signal recording/reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62160347A JP2804757B2 (en) 1987-06-26 1987-06-26 Video signal recording and playback device

Publications (2)

Publication Number Publication Date
JPS645176A true JPS645176A (en) 1989-01-10
JP2804757B2 JP2804757B2 (en) 1998-09-30

Family

ID=15713019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62160347A Expired - Fee Related JP2804757B2 (en) 1986-10-28 1987-06-26 Video signal recording and playback device

Country Status (1)

Country Link
JP (1) JP2804757B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0451361A (en) * 1990-06-19 1992-02-19 Sanyo Electric Co Ltd Document filing device
US5563716A (en) * 1994-01-24 1996-10-08 Victor Company Of Japan, Ltd. Video signal reproducing method and apparatus
US6595893B1 (en) 1999-03-26 2003-07-22 Teijin Seiki Co., Ltd. Freeing mechanism for motorized gear reducer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62190981A (en) * 1986-02-18 1987-08-21 Matsushita Electric Ind Co Ltd Video signal recording method and recording and reproducing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62190981A (en) * 1986-02-18 1987-08-21 Matsushita Electric Ind Co Ltd Video signal recording method and recording and reproducing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0451361A (en) * 1990-06-19 1992-02-19 Sanyo Electric Co Ltd Document filing device
US5563716A (en) * 1994-01-24 1996-10-08 Victor Company Of Japan, Ltd. Video signal reproducing method and apparatus
US6595893B1 (en) 1999-03-26 2003-07-22 Teijin Seiki Co., Ltd. Freeing mechanism for motorized gear reducer

Also Published As

Publication number Publication date
JP2804757B2 (en) 1998-09-30

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees