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. 03, 2002
Filed:
Sep. 07, 2001
Applicant:
Inventor:
Masashi Ohkubo, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 1/360 ; G01S 1/550 ;
U.S. Cl.
CPC ...
G01S 1/360 ; G01S 1/550 ;
Abstract
A detecting apparatus of vehicle speed including detecting means for emitting an electromagnetic wave or an ultrasonic wave to a road surface and detecting traveling speed of a vehicle from the Doppler effect produced in a reflected wave thereof, a transmitting circuit for sending information about the traveling speed detected by the detecting means by radio, a power generation mechanism for generating power by vibration produced in the vehicle, and a charging circuit for charging a charging type battery by an output voltage of the power generation mechanism.