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:
Feb. 29, 2000
Filed:
Mar. 30, 1998
Masanobu Urabe, Wako, JP;
Satoru Komatsu, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A transmission channel selection controller intermittently energizes transmission amplifiers indicated by transmission channel information, based on a modulation signal supplied from a modulation signal generator, to modulate an FM signal. The modulated FM signal is radiated as a beam from transmission antennas. When the beam is reflected as an echo beam by an object, the echo beam is received by reception antennas which supply a reception signal to reception amplifiers. A first mixer mixes the FM signal with the amplified reception signal, producing a modulated beat signal which is a beat signal representing the distance up to the object and modulated by the frequency of the modulation signal. A second mixer mixes the modulated beat signal with the modulation signal thereby demodulating the modulated beat signal into the beat signal.