Appeal No. 2002-0489
Application 08/831,731
luminance signal and a chrominance signal, the appliance
comprising:
a video decoder for decoding the luminance signal and
the chrominance signal, the chrominance signal including a
color burst, the video decoder providing a programmable
decoded horizontal sync pulse; and
a controller for programming the programmable decoded
horizontal sync pulse of the video decoder to simulate an
external burst gate signal for enveloping a color external
burst,
wherein the external burst gate signal is asserted at a
first suitable timing location prior to the color burst and
the external burst gate signal is deasserted at a second
suitable timing location after the color burst, and
wherein the external burst gate signal provides a
suitable width to effectively lock onto the color burst.
The examiner relies on the following references:
Brown 3,716,795 February 13, 1973
Burrows 4,620,219 October 28, 1986
Romesburg et al. (Romesburg) 4,864,399 September 5, 1989
MC141622 Motorola Semiconductor Technical Data, Advance
Information, Advanced Comb Filter-II (AFC-II), Motorola,
Inc. (2/95) (MC141622).
MC44144 Motorola Semiconductor Technical Data, Advance
Information, Subcarrier Phase-Locked-Loop, Motorola, Inc.
(printed 4/94 (on back cover)) (MC44144).
SAA7111 Video Input Processor (VIP) Data Sheet, Philips
Semiconductors, May 15, 1996 (Philips).
Greg Rogers, Guide to Comb Filters: Y/C Separation ,
CyberTheater: The Internet Journal of Home Cinema,
http://www.cybertheater.com/Tech_Reports/Comb_Filter_Tut/-
guide_comb_filters.html (printout dated 6/12/96) (Rogers).
Claims 1-3, 5, 6, 8, 12-14, 31, and 33-36 stand rejected
under 35 U.S.C. § 102(a) as being anticipated by Philips.
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