CATV-based wireless communications scheme

Telecommunications – Interference signal transmission

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

348 12, H04N 7173

Patent

active

058289461

ABSTRACT:
Radio frequency (RF) mobile telephone communications signals are converted to cable television (CATV) frequencies for transmission over existing CATV infrastructure. In the upstream path (i.e., from one or more mobile telephones to a base station), multiple receivers (called remote converters) receive and convert RF signals to cable signals. The cable signals from different receivers are combined by a remote cable node and transmitted over tie cable network to tie base station. In order to reduce noise in the combined cable signal, only those remote converters that receive RF signals of sufficient power level will contribute cable signals to the combined signal. This scheme enables the communications network to be configured with a greater number of relatively inexpensive, low-power remote converters for each remote cable node while still maintaining signal integrity.

REFERENCES:
patent: 3835393 (1974-09-01), Marron
patent: 3886454 (1975-05-01), Oakley et al.
patent: 5126840 (1992-06-01), Dufresne et al.
patent: 5381459 (1995-01-01), Lappington
patent: 5627879 (1997-05-01), Russell et al.
patent: 5638422 (1997-06-01), Roman
patent: 5657374 (1997-08-01), Russell et al.
"Cable Pursues Wireless", by Arthur Cole, editor of Video Technology News, a Phillips Telecom Group Publication, Jun. 1996, 5 pages.
"Interpolation, Extrapolation, and Reduction of Computation Speed in Digital Filtres", by Maurice G. Bellanger et al., IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-22, No. 4, Aug. 1974, pp. 231-235.
"A Class of Infinite-Duration Impulse Response Digital Filters for Sampling Rate Reduction", by Horacio G. Martinez et al., IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-27, No. 2, Apr. 1979, pp. 154-162.
"Some Comparisons Between FIR and IIR Digital Filters" by L.R. Rabiner et al., Copyright 1974 American Telephone can Telegraph Company, The Bell System Technical Journal, vol. 53, No. 2, Feb. 1974, pp. 305-331.
"On the Design and Performance of Efficient and Novel Filter Structures Using Recursive Allpass Filters", ISSPA 92, Signal Processing and its Applications, Gold Cost, Australia, Aug. 16-21, 1992, Editor, D. Gray, pp. 1-5.
"Design of Doubly-Complementary IIR Digital Filters Using a Single Complex Allpass Filter, With Multirate Applications", by P.P. Vaidyanathan et al., IEEE Transactions on Circuits and Systems, vol. CAS-34, No. 4, Apr. 1987, pp. 378-389.
"Design of Digital All-Pass Filtres Using a Weighted Least Squares Approach", by Charng-Kann Chen and Ju-Hong Lee, IEEE transactions on Circuits and Systems--II: Analog and Digital Signal Processing, vol. 41, No. 5, May 1994, pp.346-351.
"Simple and Robust Method for the Design of Allpass Filters Using Least-Squares Phase Error Criterion", by Markus Lang and Timo I Laako, IEEE Transactions on Circuits and Systems-II: Analog and Digital Signal Processing, vol. 41, No. 1, Jan. 1994, pp. 40-48.
"A Computer Program for Designing Optimum FIR Linear Phase Digital Filters", James H. McClellan et al., IEEE Transactions on Audio and Electroacoustics, vol. AU-21, No. 6, Dec. 1973, pp. 506-526.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

CATV-based wireless communications scheme does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with CATV-based wireless communications scheme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CATV-based wireless communications scheme will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1622387

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.