Pulse or digital communications – Repeaters – Testing
Patent
1991-07-12
1992-06-30
Gregory, Bernarr E.
Pulse or digital communications
Repeaters
Testing
380 34, 358 12, 358141, 358142, 358186, 358188, H04L 2730, H04N 538, H04N 540, H04N 544
Patent
active
051270218
ABSTRACT:
A spread spectrum transmission system for transmitting a television signal, the transmission system including a module for dividing the television signal into a plurality of frequency components; a module for grouping at least some of the frequency components into a plurality of blocks, the grouping based upon the distance that each of the frequency components is from the origin in the frequency plane; a module for generating a plurality of spread spectrum signals, each of the spread spectrum signals being generated from a different one or more of the plurality of blocks; a module for combining more than one of the spread spectrum signals to form a combined signal; and a transmitter which receives the combined signal and generates a transmission signal therefrom.
REFERENCES:
patent: 4890283 (1989-12-01), Tsinberg et al.
patent: 4907087 (1990-03-01), Schreiber
patent: 4912721 (1990-03-01), Pidgeon, Jr. et al.
P. P. Valdyanathan, "Quadrature Mirror Filter Banks, M-Band Extensions and Perfect-Reconstruction Techniques", IEEE ASSP Magazine, Jul. 1987, pp. 4-20.
G. K. Wallace, "Overview of the JPEG Still Picture Compression Algorithm", Digital Equipment Corporation pp. 66-71.
Schreiber, William F., U.S. Ser. No. 07/257,402, filed Oct. 13, 1988, entitled "Reliable Television Transmission Through Analog Channels".
Baylon, David Michael, "Adaptive Amplitude Modulation for Transform/Subband Coefficients", Massachusetts Institute of Technology, Jun. 1990, pp. 1-104.
Chou, Warren H., "Methods to Improve Spatiotempoal Adaptive Amplitude Modulation for Video Transmission", Massachusetts Institute of Technology, Feb. 1990, pp. 1-79.
Ziv, Jacob et al., "A Universal Algorithm for Sequential Data Compression", IEEE Transactions on Information Theory, vol. IT-23, No. 3, May 1977, pp. 337-343.
Haber, Conrad H. et al., "Analog Versus Digital Antijam Video Transmission"IEEE Transactions on Communications, vol. COM-25, No. 3, Mar. 1977, pp. 310-317.
ARPA Annual Technical Reports, "Image Transmission Via Spread Spectrum Techniques", Jan. 1978, pp. 1-411.
Pickholtz, Raymond L. et al., "Theory of Spread-Spectrum Communications-A Tutorial", IEEE Transactions on Communications, vol. Com-30, No. 5, May 1982, pp. 855-884.
Scholtz, Robert A., "The Spread Spectrum Concept", IEEE Transactions on Communications, vol. Com-25, No. 8, Aug. 1988, pp. 748-755.
LandOfFree
Spread spectrum television transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spread spectrum television transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spread spectrum television transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1870836