Vector waveform correction device

Details Vector waveform correction device Vector waveform correction device

2008-03-25

2008-03-25

Kostak, Victor R. (Department: 2622)

Television

Monitoring, testing, or measuring

Monitor

C348S194000, C348S507000

Reexamination Certificate

active

07349009

ABSTRACT:
A phase shifter (70) for correcting the phase of a sub-carrier signal input into a decoder to a burst signal has a phase shift setting (5), a correction amount setting (9′), a phase shifter (6) and a 90-degree phase shifter (7). The phase shift setting (5) holds a phase shift amount for all the scanning lines. The correction amount setting (9′) holds a correction phase shift amount for every part of all the scanning lines. The phase shifter (6) partially shifts the phase of the sub-carrier signal in a unit of part of all the scanning lines, and shifts it in a unit of all the scanning lines, based on said phase shift amount and said correction phase shift amount. The 90-degree phase shifter (7) generates a sub-carrier signal orthogonal to said phase shifted sub-carrier signal.

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Office Action mailed Dec. 4, 2006 (U.S. Appl. No. 10/873,303), 8 pages.

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