The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2004
Filed:
Apr. 25, 2001
Yutaka Aoki, Nisshin, JP;
Minoru Okada, Nagoya, JP;
Denso Corporation, Kariya, JP;
Abstract
A radio communication system performs radio communication between a terminal station installed on a vehicle and a plurality of base stations provided along a roadside. The system detects a vehicle traveling speed in each communication area formed by each base station. The vehicle traveling speed is detected by a method which uses radio communication between the terminal station and the base stations. The time of the vehicle stay in the communication area is estimated based on the detected vehicle traveling speed, and the length of a packet is determined based on the estimated time of the vehicle stay in the communication area. In this way, the present system performs data transmission using a packet of an appropriate length according to the detected vehicle traveling speed.