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. 27, 2002
Filed:
Jul. 19, 1999
Hirohisa Machida, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
The resampler circuit according to the present invention is arranged such that the number of multiplication, that is, the number of multiplying means is reduced by storing the coefficients in each of the time intervals between the time point at which the time interval T has elapsed and a predetermined time point in a plurality of ROMs, taking advantage of the symmetrical characteristic of the waveform indicated by the SINC function in the direction in which the number of T increments and that in which the number of −T increments, except the time intervals from the reference time 0, namely [0, T] and [0, −T]. In addition, the ROM size is also reduced by storing in each ROM the coefficients for only a half of each of the time intervals on the basis of the above symmetrical characteristic.