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:
Nov. 20, 2007
Filed:
May. 29, 2003
Ryoji Abe, Kanagawa-ken, JP;
Ryoji Abe, Kanagawa-ken, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Herein disclosed is a digital signal processing apparatus comprising: input means for inputting a plurality of acoustic signals from an external outputting device; a plurality of digital signal processing units electrically connected with one another in series to form a closed loop, for receiving and processing said acoustic signals as shared data elements in a sequential order; and output means for outputting a plurality of acoustic data elements processed and generated by said digital signal processing units to an external inputting device, whereby each of said digital signal processing units comprises: receiving means for receiving said shared data elements from a preceding digital signal processing unit; copied data storing means for copying said shared data elements to a shared memory section; acoustic signal processing means for inputting said shared data elements stored in said shared memory section as an input signal, processing said shared data elements thus inputted, and writing an output signal into said shared memory section as shared data elements; transmitting data storing means for storing shared data elements stored in said shared memory section into a transmitting memory; and transmitting means for transmitting said shared data elements stored in said transmitting memory to a subsequent digital signal processing unit.