Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1989-10-16
1991-03-19
Chin, Tommy P.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358141, H04N 1114
Patent
active
050015508
ABSTRACT:
By employing different independent polarity codes to polarity-modulate respective quads of averaged values in the vertical-temporal plane of luma, chroma, sidepanel and enhanced-luma components in the mid-frequency and/or high-frequency split-bands of a 4.2 MHz baseband television-type signal, the encoded components can be combined into successive composite quads of an encoded single channel, NTSC compatible, enhanced-definition 4.2 Mhz bandwidth television signal. The successive composite quads of the encoded signal can be decoded by a widescreen receiver without crosstalk taking place among the components, while such an encoded signal does not noticeably affect the display of a standard NTSC receiver.
REFERENCES:
patent: 4473837 (1984-09-01), Tiemann
patent: 4701783 (1987-10-01), Glenn
patent: 4855824 (1989-08-01), Fuhrer
patent: 4884127 (1989-11-01), Isnardi
patent: 4910585 (1990-03-01), Smith
An Extended Definition Television System Quadrature Modulation of the Video Carrier with Inverse Nyquist Filter, by Yasumoto et al., IEEE Transactions on Consumer Electronics, vol. CE-33, No. 3, Aug. 1987, pp. 173 to 180.
"Decoding Issues in the ACTV System", M. A. Isnardi et al., IEEE Transactions on Consumer Electronics, vol. 34, Feb. 1988.
"Single Channel Backward-Compatible EDTV Systems", SMPTE Journal, Jan. 1989.
Chin Tommy P.
General Electric Co.
Herrmann Eric P.
Kurdyla Ronald H.
Tripoli Joseph S.
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