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. 12, 2000
Filed:
Nov. 23, 1998
Applicant:
Inventor:
Jae-Yong Ihm, Seoul, KR;
Assignee:
Hyundai Electronics Industries Co., Ltd., Ichon-shi, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341 61 ; 341155 ; 375122 ;
Abstract
An interpolation digital filter for an audio CODEC uses a bit serial method for an audio CODEC system with a clock signal of 256 FS. The interpolation digital filter converts a 32-bits data signal of sampling frequency of 1 FS to a 32-bit data signal of the sampling frequency of 8 FS using a clock signal of 256 FS in a filter unit. Therefore, the present invention reduces the size of the system and reduces the cost.