Television – Format – Including additional information
Patent
1996-09-06
1997-07-08
Peng, John K.
Television
Format
Including additional information
348473, 348725, H04N 708
Patent
active
056466986
ABSTRACT:
BPSK modulation of suppressed carrier in quadrature with a video carrier amplitude-modulated by composite video signal is used for transmitting a serial-bit digital signal, which is subjected both to "pre-line-comb" and "pre-frame-comb" partial-response filtering prior to conversion to BPSK modulating signal. The "pre-frame-comb" partial-response filtering of the serial-bit data is done on a continuous basis, rather than transmitting frames of the BPSK twice, once in positive logic and once in negative logic, during successive pairs of consecutive frames of the NTSC television signal. This results in the full luminance bandwidth below chroma frequencies being available on average for the transmission of BPSK, rather than half that bandwidth.
REFERENCES:
patent: 5029003 (1991-07-01), Jonnalagadda
patent: 5053860 (1991-10-01), Tsinberg
patent: 5061998 (1991-10-01), Yasuki et al.
patent: 5063446 (1991-11-01), Gibson
patent: 5093723 (1992-03-01), Yang
patent: 5121203 (1992-06-01), Citta
patent: 5122879 (1992-06-01), Ito
patent: 5132797 (1992-07-01), Citta
patent: 5134464 (1992-07-01), Basile et al.
patent: 5229847 (1993-07-01), Gibson
patent: 5260793 (1993-11-01), Citta et al.
patent: 5287180 (1994-02-01), White
patent: 5327237 (1994-07-01), Gerdes et al.
patent: 5376894 (1994-12-01), Petranovich
patent: 5430487 (1995-07-01), Naimfally
patent: 5448299 (1995-09-01), Yang et al.
patent: 5461426 (1995-10-01), Lynberg et al.
patent: 5534933 (1996-07-01), Yang et al.
patent: 5565930 (1996-10-01), Bolger et al.
T.C. Leslie and B. Singh, "An Improved Sigma-Delta Modulator Architecture", 1990 IEEE Symposium on Circuits and Systems, 90 CH 2868-8900000-0372, pp. 372-375.
Limberg Allen LeRoy
Yang Jian
Grant Chris
Peng John K.
Samsung Electronics Co,. Ltd.
LandOfFree
Pre-frame-comb as well as "pre-line-comb" partial-response filte does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pre-frame-comb as well as "pre-line-comb" partial-response filte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pre-frame-comb as well as "pre-line-comb" partial-response filte will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2411578