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:
Dec. 02, 2003
Filed:
Dec. 14, 2001
Yukio Koyanagi, Saitama, JP;
Other;
Abstract
There are provided: an offset adding section for converting signed digital data to unsigned digital data by adding an offset value to signed digital data to be compressed, a rounding section for reducing the number of bits per word by performing a rounding operation of a lower-order bit on the unsigned digital data, a timing synthesizer and a compressing section for sampling the digital data undergoing a rounding operation at a time interval of a point where a differential value varies in polarity and for obtaining as compressed data a pair of a discrete amplitude data value on each sample point and a timing data value indicative of a time interval between sample points. When a signal is compressed and expanded on a time base, the operation can be performed on the time base without frequency conversion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile