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US 5,402,186 AGranted
Television signal processor for converting the number of scanning lines in a television signal
AssigneeKabushiki Kaisha Toshiba
InventorKiyoyuki Kawai
Life of this patent
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AssigneeKabushiki Kaisha Toshiba
InventorKiyoyuki Kawai
Estimating the term…
A television signal processor including a device for generating a frame signal, which represents a moving picture, by combining a first field and a second field of an interlace scanning input signal, a filter for separating the frame signal into a vertical low frequency component and a vertical high frequency component, a device for doubling the frame frequency by a frame progressive operation of the vertical low frequency component, a device for converting the vertical high frequency component into a second vertical low frequency component by shifting the frequency of the vertical high frequency component and for converting the vertical high frequency component into a temporal high frequency component by doubling the frequency of the frame signal, and a device for generating a moving picture signal by combining the temporal high frequency component with the double frame-frequency signal produced by the frame progressive operation of the vertical low frequency component. The processor may double the frequencies of the first and second fields, prior to filtering, instead of performing frequency doubling after filtering.
A television signal processor comprising:
A television signal processor comprising:
A television signal processor comprising:
Dependencies are inferred from the claim text.