Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1990-04-16
1991-10-01
Shepperd, John W.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 16, H04N 1100, H04N 1114
Patent
active
050538586
ABSTRACT:
In a transmitter/encoder system for processing a widescreen television signal having main panel and side panel information, side panel luminance information and side panel "Q" color difference information modulate one phase of a quadrature modulated 3.58 MHz auxiliary subcarrier, other than the standard NTSC chrominanced subcarrier, having a field reversing phase characteristics. the other (quadrature) phase of the auxiliary subcarrier is modulated with side panel wideband "I" color difference information. The "I" modulated component is filtered by an inverse Nyquist slope filter which mirrors the filter characteristics of Nyquist slop filter used at a receiver/decoder to achieve a desired flat amplitude response when the signal component containing the side panel luminannce and "Q" color difference information is demodulated.
REFERENCES:
patent: 4855811 (1989-08-01), Isnardi
patent: 4882614 (1989-11-01), Kageyama et al.
Yasumoto, Y. et al., "A Fully Compatible Extended Definition Television System Capable of Increasing the Aspect Ratio", Wireless Research Laboratory, Matsushita Electric Industrial Co., Ltd. U.S. patent application Ser. No. 07/435,227 filed 6 Nov. 1989.
Gibson James J.
Isnardi Michael A.
Koslov Joshua L.
General Electric Company
Herrmann Eric P.
Kurdyla Ronald H.
Shepperd John W.
Tripoli Joseph S.
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