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. 22, 2000
Filed:
Nov. 03, 1995
Sony Corporation, Tokyo, JP;
Abstract
A digital signal processing apparatus for matching the sampling frequency of an input digital signal to an internal sampling frequency. The digital signal processing apparatus has a sampling frequency converting unit for matching the sampling frequency of an input digital signal to an internal sampling frequency, a sampling frequency detection unit for detecting the sampling frequency of the input digital signa, a frequency difference calculating unit for finding the frequency difference between the inherent sampling frequency of the input digital signal and the sampling frequency detected by the sampling frequency detection unit and a pitch shifting unit for shifting the pitch of an output digital signal of the sampling frequency converting unit based upon said frequency difference. If the input digital signal has the sampling frequency slightly offset from the inherent sampling frequency, the signal of the inherent sampling frequency can be recovered, while the pitch can be restored to the inherent pitch.