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. 05, 2002
Filed:
Nov. 28, 1997
Yoichiro Sako, Toyko, JP;
Heitaro Nakajima, Toyko, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention provides a digital signal reproduction apparatus and a digital signal reproduction method which employs fluctuation in a sampling or quantization process, so as to eliminate lack of depth feeling in digital data, increasing the pleasantness. In a case when a switch is OFF and a switching circuit is set to at terminal b, a clock generator generates a master clock MCK having a 1/f fluctuation according to a signal generated by a fluctuation function generating circuit . This master clock MCK is supplied to a D/A converter , an aperture circuit , and a low pass filter . The D/A converter converts a digital signal into an analog signal having an amplitude A with an amplitude fluctuation &Dgr;A (A±&Dgr;A). Thus, the D/A converter is capable of adding a 1/f fluctuation in the amplitude direction (power axis direction) of the analog signal.