Television – Bandwidth reduction system – Format type
Patent
1992-09-30
1995-07-04
Groody, James J.
Television
Bandwidth reduction system
Format type
348474, 348475, 348493, 348488, 348699, H04N 1106
Patent
active
054304873
ABSTRACT:
A system for improving motion-sensitive processing in a television receiver generates motion vectors for video images in a studio environment, encodes the motion vectors and then combines the encoded motion vectors with the video signal for transmission. A receiver decodes the motion vectors and applies them to the motion-sensitive processing apparatus to improve its performance. The motion vector information is encoded during the active portion of the video signal in a manner that does not produce significant distortion when the video signal is processed for display. According to one embodiment of the invention, the motion vectors are encoded in a band of frequencies surrounding the color subcarrier signal as a 16 quadrature amplitude modulated (QAM) signal using Fukinuki-type modulation. According to another embodiment of the invention the motion vectors are encoded using conventional 16 QAM modulation and then used to modulate a carrier signal which is quadrature phase related to the picture carrier signal.
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Grant Chris
Groody James J.
Matsushita Electric Corporation of America
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