Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1984-05-03
1987-02-03
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 31, H04N 718
Patent
active
046411860
ABSTRACT:
A motion detector for detecting motion in a picture contained in a television signal includes a filter that extracts a portion of the frequency spectrum of the television signal. The amplitude of the sidebands of the television signal in this portion of the frequency spectrum is indicative of motion in the picture scene. The signal from the filter is coupled to a peak detector that produces a motion indicative signal. The amplitude of the motion signal is proportional to the absolute value of the amplitude of the sidebands in this portion of the spectrum.
REFERENCES:
patent: 3564122 (1977-02-01), Wise
patent: 3707596 (1972-12-01), Kuhn
patent: 3836707 (1974-09-01), Murakami et al.
patent: 4179705 (1979-12-01), Faroudja
patent: 4456921 (1984-06-01), Hess
patent: 4553158 (1985-11-01), Acampora
Article by M. Achiha et al., entitled, "A Motion Adaptive High-Definition Converter for NTSC Color TV Signals", submitted to the 13th International Television Symposium in Montreaux, Canada, May 1983.
U.S. patent application Ser. No. 226,712, filed Jan. 21, 1981, entitled, "Dropout Compensation in a Video Relay System, by R. N. Hurst.
Britton Howard W.
Coalter R. G.
Emanuel P. M.
Kostah Victor R.
Rasmussen P. J.
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