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:
May. 27, 1997
Filed:
May. 19, 1994
Applicant:
Inventor:
Takahiko Nakano, Ikoma, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341 61 ; 341122 ;
Abstract
A codec apparatus is for converting an analog signal to a digital signal, and for decoding the digital signal to an analog signal. The codec apparatus includes a detection device for discriminating a frequency bandwidth of the analog signal, and a changing device for changing a sampling frequency of the digital signal based upon a signal from the detection device. The sampling frequency of a digital signal can be changed according to a frequency bandwidth of an analog signal. This arrangement can prevent the sampling frequency from being set excessively high.