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:
Aug. 11, 2009
Filed:
Oct. 11, 2006
Teiji Amanuma, Kanagawa, JP;
Hidetoshi Sugawara, Kanagawa, JP;
Satoshi Arima, Kanagawa, JP;
Kosuke Yoshizawa, Kanagawa, JP;
Naoichi Hasegawa, Kanagawa, JP;
Teiji Amanuma, Kanagawa, JP;
Hidetoshi Sugawara, Kanagawa, JP;
Satoshi Arima, Kanagawa, JP;
Kosuke Yoshizawa, Kanagawa, JP;
Naoichi Hasegawa, Kanagawa, JP;
Ono Sokki Co., Ltd., Yokohama-Shi, JP;
Abstract
A CPU generates the reference value (root mean squared value) of sound level and outputs it to a DSP, the DSP generates a measured value of sound level (root mean squared value), and compares thus-generated measured value of sound level (root mean squared value) with the reference value (root mean squared value) of sound level received from the CPU, and outputs a signal expressing the result of comparison to a display device, to thereby enable comparison of the measured value of sound level (root mean squared value) with the reference value (root mean squared value) of sound level, every time the sampling takes place in synchronization with the sampling frequency in the A/D converter.