Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-02-21
1992-11-17
Peng, John K.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358105, 358135, 358 85, H04N 712, H04N 718, H04N 714
Patent
active
051648288
ABSTRACT:
In a video signal transmission system, in which video signals are transformed to high efficiency coded data and are then transmitted, a quantization step size is enlarged when quantizing intra coded picture data to avoid an excessive increase in the amount of data generated. The amount of residual data in a transmission buffer memory is monitored, and frame dropping is initiated when it exceeds a certain predetermined level, but the frame dropping operation is not completed until the amount of residual data falls below a different, smaller predetermined level. Video signals which are sent immediately after a transmission line is connected to a destination are intra coded to enhance system usability.
REFERENCES:
patent: 4217609 (1980-08-01), Hatori et al.
patent: 4546386 (1985-10-01), Matsumoto et al.
patent: 4689672 (1987-08-01), Furukawa et al.
patent: 4942465 (1990-07-01), Ohta
patent: 4951140 (1990-08-01), Veno et al.
patent: 4953023 (1990-08-01), Kondo
patent: 4999704 (1991-03-01), Ando
patent: 5005076 (1991-04-01), Stroppina et al.
patent: 5089888 (1992-02-01), Zdepski et al.
Emoto Seiichi
Tahara Katsumi
Frommer William S.
Peng John K.
Sinderbrand Alvin
Sony Corporation
LandOfFree
Video signal transmission and method and apparatus for coding vi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video signal transmission and method and apparatus for coding vi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video signal transmission and method and apparatus for coding vi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1176022