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2010-11-10T01:14:17Z
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Jouve S.A., EPO - Publication - KB, TaggedPDF v1.27
EP-0249985-A3-19890823
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EP-0249985-A3-19890823
A video memory, for use with a video tape recorder, a television receiver of the like to process a picture, is simplified and can achieve the functions of a time base corrector, a noise reduced and a comb filter, so as to considerably improve the quality of a video picture. A frequency converting circuit for use with the video memory includes a comparator (30) for comparing first and second address signals and an address correction circuit (38) connected to receive an output signal from the comparator (30). When a crossing occurs between the first and second address signals, the sequential order in which an address signal is supplied to the memory (12) is switched by the address correcting circuit (38), to thereby derive a continuous output signal from the memory (12). A video memory, for use with a video tape recorder, a television receiver of the like to process a picture, is simplified and can achieve the functions of a time base corrector, a noise reduced and a comb filter, so as to considerably improve the quality of a video picture. A frequency converting circuit for use with the video memory includes a comparator (30) for comparing first and second address signals and an address correction circuit (38) connected to receive an output signal from the comparator (30). When a crossing occurs between the first and second address signals, the sequential order in which an address signal is supplied to the memory (12) is switched by the address correcting circuit (38), to thereby derive a continuous output signal from the memory (12).
A video memory, for use with a video tape recorder, a television receiver of the like to process a picture, is simplified and can achieve the functions of a time base corrector, a noise reduced and a comb filter, so as to considerably improve the quality of a video picture. A frequency converting circuit for use with the video memory includes a comparator (30) for comparing first and second address signals and an address correction circuit (38) connected to receive an output signal from the comparator (30). When a crossing occurs between the first and second address signals, the sequential order in which an address signal is supplied to the memory (12) is switched by the address correcting circuit (38), to thereby derive a continuous output signal from the memory (12). A video memory, for use with a video tape recorder, a television receiver of the like to process a picture, is simplified and can achieve the functions of a time base corrector, a noise reduced and a comb filter, so as to considerably improve the quality of a video picture. A frequency converting circuit for use with the video memory includes a comparator (30) for comparing first and second address signals and an address correction circuit (38) connected to receive an output signal from the comparator (30). When a crossing occurs between the first and second address signals, the sequential order in which an address signal is supplied to the memory (12) is switched by the address correcting circuit (38), to thereby derive a continuous output signal from the memory (12).
en
European Patent Office
EP0249985
EP 0249985
H04N 05/907
Video memory
Video memory - European Patent Office - EP 0249985 A3
Video memory - European Patent Office - EP 0249985 A3
Adobe PDF Library 8.0
"EP0249985"; "EP 0249985"; "H04N 05/907"; "Video memory"
1.4
1
B
2
EP
0249985
A3
1989-08-23
87108801
1987-06-19
JP
14407586
1986-06-20
JP
15049386
1986-06-26
H04N 05/907
SONY CORPORATION
Ebihara, Norio
Sasaki, Takayuki
Kita, Hiroyuki
Ohsawa, Yoshihito
TER MEER - MÜLLER - STEINMEISTER & PARTNER
Video memory
Videospeicher
Video memory
Mémoire vidéo
A video memory, for use with a video tape recorder, a television receiver of the like to process a picture, is simplified and can achieve the functions of a time base corrector, a noise reduced and a comb filter, so as to considerably improve the quality of a video picture. A frequency converting circuit for use with the video memory includes a comparator (30) for comparing first and second address signals and an address correction circuit (38) connected to receive an output signal from the comparator (30). When a crossing occurs between the first and second address signals, the sequential order in which an address signal is supplied to the memory (12) is switched by the address correcting circuit (38), to thereby derive a continuous output signal from the memory (12). A video memory, for use with a video tape recorder, a television receiver of the like to process a picture, is simplified and can achieve the functions of a time base corrector, a noise reduced and a comb filter, so as to considerably improve the quality of a video picture. A frequency converting circuit for use with the video memory includes a comparator (30) for comparing first and second address signals and an address correction circuit (38) connected to receive an output signal from the comparator (30). When a crossing occurs between the first and second address signals, the sequential order in which an address signal is supplied to the memory (12) is switched by the address correcting circuit (38), to thereby derive a continuous output signal from the memory (12).
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