Method for a compatible increase in resolution in television...

Details Method for a compatible increase in resolution in television... Method for a compatible increase in resolution in television...

H - Electricity

04

N

350/36, 350/50,

H04N 5/14 (2006.01) H04N 7/12 (2006.01) H04N 7/00 (2006.01)

Patent

CA 1154147

ABSTRACT OF THE DISCLOSURE Band limited standard video signals are sampled with line coupled sampling clock pulses. The sampling clock pulses are shifted from field to field by one-half a sampling interval. The sampling clock pulse rate is twice the frequency at the center of the Nyquist edge of the transmission channel. The received signal is sampled in synchronism, line coupled and offset from field to field. A video memory records the sampled values and furnishes them to the monitor at twice the sampling frequency and without flicker as a full frame. The video playback takes place at twice the line frequency or alternatively with the same line frequency and synchronous spot wobbling.

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