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:
Jul. 24, 2018
Filed:
May. 24, 2016
Zoom Corporation, Tokyo, JP;
Michihito Nozokido, Tokyo, JP;
ZOOM CORPORATION, Tokyo, JP;
Abstract
A digital signal processor that is capable of suppressing a signal level of an input analog signal at not more than the maximum voltage for A/D conversion and capable of preventing distortion of an A/D converted digital signal while maintaining a good S/N ratio. The digital signal processorof the present invention includes amplification factor setting mechanisms to set amplification factors of the analog amplifiers to second amplification factors lower than first amplification factors specified by amplification factor adjustment knobs, digital amplifier mechanisms to amplify A/D converted digital signals by third amplification factors lower than the first amplification factors, and digital limiter mechanisms to compare the signal levels of the digital signals amplified by the third amplification factors with a threshold defined in advance and attenuate the digital signals within the range of the third amplification factors based on a result of the comparison.