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:
Jun. 24, 2008
Filed:
Aug. 16, 2001
Toru Shibusawa, Osaka, JP;
Toru Shibusawa, Osaka, JP;
Sanyo Electric Co., Moriguchi-shi, JP;
Abstract
A demodulation circuit generates information related to the frequency of error correction, and feeds the information to a CPU. The CPU acquires noise intensity data on the basis of the information related to the frequency of error correction from the demodulation circuit in view of noise intensity data corresponding to the frequency of error correction stored in a memory. The CPU feeds the acquired noise intensity data to a D/A converter. The D/A converter feeds a noise control voltage to a voltage controlled amplifier. Noises produced in a noise source are overlaid on a signal in an adder after the intensity thereof is adjusted in the voltage controlled amplifier.