Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1985-06-05
1987-07-28
Masinick, Michael A.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 31, H04N 967
Patent
active
046834907
ABSTRACT:
The present application discloses a video signal processing apparatus for minimizing cross-color and cross-luminance interference in a composite video signal. A first filter is coupled to a color difference signal input terminal and generates a signal occupying a first region of a predetermined spatio-temporal frequency space. A second filter is coupled to a brightness signal input terminal and generates a signal occupying a second region of the predetermined spatio-temporal frequency space exclusive of the first region. An encoder forms a composite video signal from the filtered color difference and brightness signals such that they occupy mutually exclusive spatio-temporal frequency spaces. A television receiver for decoding the composite video signal is described which comprises the serial connection of a vertical-temporal filter and a horizontal filter. Filters are also disclosed for the first and second filters described above which are the serial connection of vertical-temporal filters and a horizontal filter. Specific vertical-temporal filter arrangements are also disclosed.
REFERENCES:
patent: 2921121 (1960-01-01), Grundmann et al.
patent: 4343017 (1982-08-01), Wilkinson
patent: 4507676 (1985-03-01), Dischert
patent: 4530004 (1985-07-01), Achiha
patent: 4551753 (1985-11-01), Nishizawa et al.
patent: 4597007 (1986-06-01), Reitmeier
J. O. Drewery, "The Filtering of Luminance and Chrominance Signals to Avoid Cross--Colour in a PAL Colour System," BBC Engineering, Sep. 1976, pp. 8-39.
Hadwen Brian M.
Smith Terrence R.
Strolle Christopher H.
Caracappa David N.
Herrmann Eric P.
Masinick Michael A.
Rasmussen Paul J.
RCA Corporation
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