Progressive scan display system employing line and frame...

Details Progressive scan display system employing line and frame... Progressive scan display system employing line and frame...

H - Electricity

04

N

350/36

H04N 7/01 (2006.01) H04N 5/44 (2006.01)

Patent

CA 1282165

ABSTRACT PROGRESSIVE SCAN DISPLAY SYSTEM EMPLOYING LINE AND FRAME MEMORIES A receiver includes a line store progressive scan processor (26) and a frame store progressive scan processor (28) for doubling the line rate of a video input signal for display. The video input signal includes an identifying signal ("flag") signifying whether the fields are derived from a common scene. The identifying signal is detected (32) and used to control a switch (30) for selectively coupling the output of the processors to a display (20) such that frame store processed signals are displayed for fields derived from exactly the same scene and line store processed signals are displayed for "mixed" fields (i.e., fields from different frames or frames containing motion).

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