Patent EP0190919A2 successfully refreshed from Google Patents.
EP0190919A2
Expired / Lapsed
EP
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Recording system
Assignee: Sony Corp
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Filing: 1986-02-04
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Granted: —
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Expires: 2006-02-04
Abstract
Abstract A recording and reproducing apparatus for recording and reproducing a video signal by expanding and separating it into two channels and wherein the video signal is provided with a horizonal synchronizing signal which has a polarity which is the same as a picture signal in a horizontal period is recorded and reproduced and whereupon recording a second horizontal synchronizing signal with a polarity which is opposite to the picture signal and a burst signal are added and then recorded in two channels and wherein during reproduction the second horizontal synchronizing signal is extracted by level detection and the burst signal is extracted by said second horizontal synchronizing signal and time-base errors of the picture signal and horizontal sychronizing signal are removed by removing said extracted burst signal so as to reproduce the video signal.
Inventors
- 👤 Toshihiko Numakura
- 👤 Keiji Kanouta
- 👤 Masashi Mizuta
- 👤 Masayoshi Ishimaru
- 👤 Michio Nagai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 11:58
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/917; H04N5/919; H04N9/00; H04N9/79; H04N9/797; H04N9/7973
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
103 words
A recording and reproducing apparatus for a time compressed integration video signal comprising; means for processing a recording signal having an expander for time expanding an input signal at each line period and a separator for separating every other lines of the expanded input signal to first and second video channels, first and second video heads for simultaneously recording and reproducing said signals from said first and second video channels to different tracks on a video tape, and means for processing a recorded signal having a time base compression circuit and a channel mixing circuit from which an output video signal is obtained.
Claim 2
Dependent Claim
103 words
A recording and reproducing apparatus for a time compressed integration video signal comprising; means for processing a recording signal having an expander for time expanding an input signal at each line period and a separator for separating every other lines of the expanded input signal to first and second video channels, first and second video heads for simultaneously recording and reproducing said signals from said first and second video channels to different tracks on a video tape, and means for processing a recorded signal having a time base compression circuit and a channel mixing circuit from which an output video signal is obtained.
Claim 3
Dependent Claim
135 words
A recording and reproducing apparatus for a time compressed video signal according to claim 1 in which a video signal provided with a horizontal synchronizing signal having the same polarity as a picture signal in a horizontal period of said picture signal is recorded and reproduced including means for recording which adds a second horizontal synchronizing signal with a polarity which is opposite to said picture signal and a burst signal to the signal and then records them, and reproducing means which includes extraction means to extract said signal with opposite polarity and also to extract said burst signal using said scond horizontal synchronizing signal so as to remove time base errors of said picture signal and horizontal synchronizing signal by ussing said burst signal which has been extracted, whereby to reproduce said video signal.
Claim 4
Dependent Claim
135 words
A recording and reproducing apparatus for a time compressed integration video signal comrising, means for processing a recording signal including a time base compressor for time compressing an input signal during each line period, means for generating a burst signal and a horizontal sync pulse having a polarity opposite to said picture signal, adding means adding said burst signal and said horizontal sync pulse signal of opposite polarity to the compressed input signal, means for recording and reproducing said compressed signal on video tape, means for detecting said burst signal and said horzintal sync pulse of opposte polarity from said tape connected to said recording and reproducing means, a time base expander connected to said recording and reproducing means and receiving an input from said means for detecting to produce a time stable output signal.
Claim 5
Dependent Claim
135 words
A recording and reproducing apparatus for a time compressed integration video signal comrising, means for processing a recording signal including a time base compressor for time compressing an input signal during each line period, means for generating a burst signal and a horizontal sync pulse having a polarity opposite to said picture signal, adding means adding said burst signal and said horizontal sync pulse signal of opposite polarity to the compressed input signal, means for recording and reproducing said compressed signal on video tape, means for detecting said burst signal and said horzintal sync pulse of opposte polarity from said tape connected to said recording and reproducing means, a time base expander connected to said recording and reproducing means and receiving an input from said means for detecting to produce a time stable output signal.
Claim 6
Dependent Claim
39 words
A recording and reproducing apparatus for a time compressd integration signal according to claim 3 including a time base corrector receiving the output of said time base expander and said burst signal to produce a corrected video output signal.
Claim 7
Dependent Claim
180 words
A recording and reproducing apparatus for a time compressed integration video signal comprising a channel separation and time base expander receiving said video signal and expanding it and separating it into two channel signals, means for generating a burst signal and a second horizontal sync pulse (RH) which has a polarity which is opposite to said video signal, means for adding said burst signal and said second horizontal sync pulse (RH) to said two channel signals, two channel reproducing and recording means receiving the output of said adder and recording said two channels on two separate tracks on a video tape, a time base compressor connected to said two channel reproducing and recording means, a pair of clock generators receiving said two channel signals from said two channel reproducing and recording means and supplying inputs to said time base compressor, a timing control supplying an input to said time base compresosr, and a channel mixing and time base compensator receiving the outputs of said time base compressor and producing at its output said time compressed integration video signal without jitter.
Claim 8
Dependent Claim
180 words
A recording and reproducing apparatus for a time compressed integration video signal comprising a channel separation and time base expander receiving said video signal and expanding it and separating it into two channel signals, means for generating a burst signal and a second horizontal sync pulse (RH) which has a polarity which is opposite to said video signal, means for adding said burst signal and said second horizontal sync pulse (RH) to said two channel signals, two channel reproducing and recording means receiving the output of said adder and recording said two channels on two separate tracks on a video tape, a time base compressor connected to said two channel reproducing and recording means, a pair of clock generators receiving said two channel signals from said two channel reproducing and recording means and supplying inputs to said time base compressor, a timing control supplying an input to said time base compresosr, and a channel mixing and time base compensator receiving the outputs of said time base compressor and producing at its output said time compressed integration video signal without jitter.
Claim 9
Dependent Claim
27 words
A recording and reproducing apparatus according to claim 5 including a frame sync generator connected to supply an input to said channel mixing and time base compressor.
References Cited (Backward Citations)
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