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:
Nov. 10, 1998
Filed:
Aug. 14, 1997
Mikio Iwakuni, Tokyo, JP;
Uniden Corporation, Tokyo, JP;
Abstract
Disclosed is a radar detector for frequency sweeping a wide band range by using a VCO circuit to detect a radar signal, wherein the frequency precision of the received band can be improved by using comparatively simple and inexpensive circuits. This radar detector comprises an antenna for receiving radar signals, a voltage controlled oscillator which receives a controlled signal and generates a signal of a frequency corresponding thereto, a receiving section which demodulates the radar signal received by said antenna based on the output signal of said voltage controlled oscillator, a sweep signal generating section which generates and supplies a sweep signal to said voltage controlled oscillator as said controlled signal, a memory section which stores data indicating the relation between said sweep signal and oscillating frequency in advance, and a controlling section which, after detecting a radar signal demodulated by said receiving section, decides the received frequency of said radar signal by comparing the controlled signal of said voltage controlled oscillator with the data in said memory section. The memory section stores the actual characteristics of the voltage controlled oscillator, so that a correct distinction is possible.