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.

Date of Patent:
Jan. 15, 2002

Filed:

Aug. 09, 2000
Applicant:
Inventor:

Mamoru Takikita, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08G 1/00 ;
U.S. Cl.
CPC ...
G08G 1/00 ;
Abstract

A DSRC car-mounted equipment reliably preventing communication error in the communication area, comprising a communication control unit for transmitting and receiving data by radio to and from an on-the-road equipment, a radio detector unit for detecting signals received from the on-the-road equipment by detecting the electric field intensity E, and a microcomputer ( A) for fetching output signals from the radio detector unit by controlling the communication control unit to process data included in the received signals, wherein the microcomputer includes an input interface for receiving data Vr related to the speed of the vehicle, and communication area-setting means for variably setting the radio communication area depending upon the vehicle speed data, and wherein the communication area-setting means contracts the communication area when the vehicle speed data represents a low-speed state and expands the communication area when the vehicle speed data represents a high-speed state.


Find Patent Forward Citations

Takikita, Mamoru. (2002). Dsrc car-mounted equipment (U.S. Patent No. 6339381). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6339381

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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