Automobile communications method and system

Details Automobile communications method and system Automobile communications method and system

2006-08-29

2006-08-29

Appiah, Charles N. (Department: 2617)

Telecommunications

Transmitter and receiver at separate stations

Optimum frequency selection

C455S450000, C455S446000, C370S329000

Reexamination Certificate

active

07099625

ABSTRACT:
An automobile communication system which can ensure fast hand-over without putting unnecessary burden on mobile stations and can adequately handle changes in road condition is disclosed. For each of the radio zones formed by roadside transceivers arranged along a road, a plurality of transmission and reception frequencies ft1/fr1and ft2/fr2are provided. The in-use transmission/reception frequencies in adjoining radio zones are switched at predetermined timing such that they are not permitted to be overlapped. By switching a time slot allocated to the vehicle-mounted transceiver, the vehicle-mounted transceiver can continuously communicate with the roadside transceivers at the same communication frequency over the radio zones.

REFERENCES:
patent: 5127100 (1992-06-01), D'Amico et al.
patent: 5159593 (1992-10-01), D'Amico et al.
patent: 5345448 (1994-09-01), Keskitalo
patent: 5390235 (1995-02-01), Beasley
patent: 5448751 (1995-09-01), Takenaka et al.
patent: 5557603 (1996-09-01), Barlett et al.
patent: 5737329 (1998-04-01), Horiguchi
patent: 5822313 (1998-10-01), Malek et al.
patent: 5859841 (1999-01-01), Gitlits
patent: 5901114 (1999-05-01), Baravian et al.
patent: 5937333 (1999-08-01), Sexton et al.
patent: 6072842 (2000-06-01), Janesch et al.
patent: 6128287 (2000-10-01), Freegurg et al.
patent: 6131033 (2000-10-01), Shi
patent: 6310867 (2001-10-01), Tat et al.
patent: 2106017 (1995-03-01), None
patent: 2166832 (1996-07-01), None
patent: 0 199 266 (1986-10-01), None
patent: 1-218138 (1989-08-01), None
patent: 2-186843 (1990-07-01), None
patent: 8-340569 (1996-12-01), None
European Search Report dated Feb. 16, 2000.
Japanese Office Action dated Apr. 25, 2000 with partial translation.
European Communication pursuant to Aticle 96(2) EPC dated June 4, 2002.
Canadian Office Action dated Nov. 26, 2001.
European Patent Office Communication dated Aug. 12, 2005.
Mouly, et al. “The GSM System for Mobile Communications”, pp. 45-46, 195-197, 327-329, no date listed.
Canadian Office Action dated Aug. 9, 2004.
Canadian Office Action dated Mar. 25, 2003.

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