Patent EP0414993A2 successfully refreshed from Google Patents.
EP0414993A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Video signal recording method
Assignee: Pioneer Corp
•
Filing: 1990-03-23
•
Granted: —
•
Expires: 2010-03-23
Abstract
Abstract A video signal recording method and apparatus by means of which, when a video signal based on a high definition television system is to be converted into a video signal based on a current television system and recorded on record media, such video signals can be recorded so as not to cause a deterioration in picture image quality such as color phase irregularity. According to the video signal recording method, a screen to be displayed in accordance with signals of a high definition television system is divided into a plurality of screens, video signals of each of which are then converted into signals of a current television system. A luminance signal and a chrominance signal of each of the signals of the current television system are time division multiplexed. Signals obtained by such time division multiplexing are recorded onto a plurality of record media with or without a color burst signal added thereto for each line.
Inventors
- 👤 Hitoshi C/O Pioneer Electronic Corp. Senso
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 22:29
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/79; H04N9/80; H04N9/82; H04N9/797; H04N9/81
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
81 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing a luminance signal and chrominance signals of each of the signals of the current television system, and recording signals obtained by such time division multiplexing onto a plurality of record media.
Claim 2
Dependent Claim
81 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing a luminance signal and chrominance signals of each of the signals of the current television system, and recording signals obtained by such time division multiplexing onto a plurality of record media.
Claim 3
Dependent Claim
86 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing, for each line, two chrominance signals and a luminance signal which constitute each of the signals of the current television system, and recording signals obtained by such time division multiplexing onto a plurality of record media.
Claim 4
Dependent Claim
86 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing, for each line, two chrominance signals and a luminance signal which constitute each of the signals of the current television system, and recording signals obtained by such time division multiplexing onto a plurality of record media.
Claim 5
Dependent Claim
58 words
A video signal recording method as claimed in claim 2, wherein two chrominance signals and a luminance signal which constitute each of the signals of the current television system is time division multiplexed after the luminance signal is time base compressed to one half and each of the two chrominance signals is time base compressed to one forth.
Claim 6
Dependent Claim
88 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing one of two line sequentially arrayed chrominance signals and a luminance signal which constitute each of the signals of the current television system, and recording signals obtained by such time division multiplexing onto a plurality of record media.
Claim 7
Dependent Claim
88 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing one of two line sequentially arrayed chrominance signals and a luminance signal which constitute each of the signals of the current television system, and recording signals obtained by such time division multiplexing onto a plurality of record media.
Claim 8
Dependent Claim
58 words
A video signal recording method as claimed in claim 4, wherein one of two chrominance signals and a luminance signal which constitute each of the signals of the current television system is time division multiplexed after the luminance signal is time base compressed to two thirds and the one chrominance signal is time base compressed to one third.
Claim 9
Dependent Claim
95 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing a luminance signal and chrominance signals of each of the signals of the current television system, adding a color burst signal for each line to signals obtained by such time division multiplexing, and recording signals obtained by such addition onto a plurality of record media.
Claim 10
Dependent Claim
95 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing a luminance signal and chrominance signals of each of the signals of the current television system, adding a color burst signal for each line to signals obtained by such time division multiplexing, and recording signals obtained by such addition onto a plurality of record media.
Claim 11
Dependent Claim
100 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing, for each line, two chrominance signals and a luminance signal which constitute each of the signals of the current television system, adding a color burst signal for each line to signals obtained by such time division multiplexing, and recording signals obtained by such addition onto a plurality of record media.
Claim 12
Dependent Claim
100 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing, for each line, two chrominance signals and a luminance signal which constitute each of the signals of the current television system, adding a color burst signal for each line to signals obtained by such time division multiplexing, and recording signals obtained by such addition onto a plurality of record media.
Claim 13
Dependent Claim
58 words
A video signal recording method as claimed in claim 7, wherein two chrominance signals and a luminance signal which constitute each of the signals of the current television system is time division multiplexed after the luminance signal is time base compressed to one half and each of the two chrominance signals is time base compressed to one forth.
Claim 14
Dependent Claim
102 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing one of two line sequentially arrayed chrominance signals and a luminance signal which constitute each of the signals of the current television system, adding a color burst signal for each line to signals obtained by such time division multiplexing, and recording signals obtained by such addition onto a plurality of record media.
Claim 15
Dependent Claim
102 words
A video signal recording method, comprising the steps of dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, converting video signals of each of the screens thus obtained into signals of a current television system, time division multiplexing one of two line sequentially arrayed chrominance signals and a luminance signal which constitute each of the signals of the current television system, adding a color burst signal for each line to signals obtained by such time division multiplexing, and recording signals obtained by such addition onto a plurality of record media.
Claim 16
Dependent Claim
58 words
A video signal recording method as claimed in claim 9, wherein one of two chrominance signals and a luminance signal which constitute each of the signals of the current television system is time division multiplexed after the luminance signal is time base compressed to two thirds and the one chrominance signal is time base compressed to one third.
Claim 17
Dependent Claim
108 words
A video signal recording apparatus, comprising means for dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, means for converting video signals of each of the screens from the dividing means into signals of a current television system, means for time division multiplexing a luminance signal and chrominance signals of each of the signals of the current television system from the converting means, means for adding a color burst signal for each line to signals from the time division multiplexing means, and means for recording signals from the adding means onto a plurality of record media.
Claim 18
Dependent Claim
108 words
A video signal recording apparatus, comprising means for dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, means for converting video signals of each of the screens from the dividing means into signals of a current television system, means for time division multiplexing a luminance signal and chrominance signals of each of the signals of the current television system from the converting means, means for adding a color burst signal for each line to signals from the time division multiplexing means, and means for recording signals from the adding means onto a plurality of record media.
Claim 19
Dependent Claim
92 words
A video signal recording apparatus, comprising means for dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, means for converting video signals of each of the screens from the dividing means into signals of a current television system, means for time division multiplexing a luminance signal and chrominance signals of each of the signals of the current television system from the converting means, and means for recording signals from the time division multiplexing means onto a plurality of record media.
Claim 20
Dependent Claim
92 words
A video signal recording apparatus, comprising means for dividing a screen to be displayed in accordance with signals of a high definition television system into a plurality of screens, means for converting video signals of each of the screens from the dividing means into signals of a current television system, means for time division multiplexing a luminance signal and chrominance signals of each of the signals of the current television system from the converting means, and means for recording signals from the time division multiplexing means onto a plurality of record media.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.