Telecommunications – Transmitter and receiver at separate stations – Distortion – noise – or other interference prevention,...
Patent
1995-09-19
1998-09-22
To, Doris H.
Telecommunications
Transmitter and receiver at separate stations
Distortion, noise, or other interference prevention,...
455117, 455522, 455575, 370321, 370442, H04B 110
Patent
active
058129367
ABSTRACT:
A method and apparatus are disclosed that mitigate the induction of baseband interference that can from time-division radios (e.g., radios that radiate an RF signal with a time-varying power envelope). A radio comprising an embodiment of the present invention radiates, in transmit mode, an information-bearing signal. In some or all idle modes, the radio radiates at least one energy-reducing pulse, but in an idle-mode channel. These energy-reducing pulses reduce the energy in the fundamental frequency component of the average RF power envelope of the radio and also reduce the energy in the harmonics of the fundamental frequency.
REFERENCES:
patent: 4521912 (1985-06-01), Franke et al.
patent: 4564867 (1986-01-01), Nakajima
patent: 4694466 (1987-09-01), Kadin
patent: 4697281 (1987-09-01), O'Sullivan
patent: 5157661 (1992-10-01), Kanai et al.
patent: 5612955 (1997-03-01), Fernandes et al.
"Interference from the TDMA structure in digital mobile communication to PSTN", TF Televerkets Forskningsinstitutt, TF R 40/92, pp. 1-13 and Annex 1-15; GSM 05.90, version 4.0.0; Feb. 1993, pp. 5-9.
"Interference to Hearing Aids by the New Digital Mobile Telephone System", Global System for Mobile (GSM) Communications Standard, K. H. Joyner, M. Wood, E. Burwood, D. Allison, R. LeStrange, National Acoustic Laboratories, a Division of Australian Hearing Services, Sydney, 30 Mar. 1993, pp. i-13.
"Pacemakers, Other Devices May Be Vulnerable to Wireless Technology", L. Neergaard, The Associated Press, Oct. 6, 1994.
Stray Signals: Clutter on Airwaves Can Block Workings of Medical Electronics, T. Knudson, W. M. Bulkeley, Wall Street Journal, Jun. 15, 1994, p. A1.
"Digital Cell Phones Can Interfere With Pacemakers", Steve Young, Show: Moneyline, 7:33 PM EST, Apr. 28, 1995, Transcript #1407-2, Cable News Network, Inc. (CNN); Researchers: Digital Cell Phones Might Interfere with Pacemakers, Robert W. Trott, Associated Press, Apr. 18, 1995.
Lucent Technologies - Inc.
To Doris H.
LandOfFree
Energy-efficient time-division radio that reduces the induction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Energy-efficient time-division radio that reduces the induction , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy-efficient time-division radio that reduces the induction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1634734