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:
Feb. 04, 2003
Filed:
Dec. 10, 2001
Yukio Koyanagi, Saitama, JP;
Other;
Abstract
A digital-analog converter and method for lowering the computational complexity and decreasing the circuit scale, and data interpolating device and method. The digital-analog converter has a fundamental digital waveform generating section for generating a fundamental waveform according to the values of inputted discrete data, a convolution calculating section for carrying out oversampling and convolution of the output from the digital waveform generating section , and a D/A converting section for D/A converting the output from the convolution calculating section . The amplitude of the fundamental digital waveform is modulated according to the discrete data and the data is combined by convolution. Only by carrying out oversampling and convolution, continuous interpolation values are obtained.