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:
Jul. 19, 1994
Filed:
Apr. 09, 1992
Nobukazu Doi, Hachioji, JP;
Tohru Setoyama, Kokubunji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A signal processing device is provided with a plurality of signal processing circuits which are integrated on a monolithic semiconductor chip and which execute a plurality of predetermined signal processing stages. Signal input terminals are connected with predetermined one of the signal processing circuits for receiving input signals necessary for the plurality of signal processing stages. A first signal output circuit outputs the final signal processing result while a second signal output circuit outputs the intermediate processing results obtained from the signal processing circuits other than a signal processing circuit which performs the final stage signal processing. A plurality of selection circuits are respectively located on each of signal transfer paths for transferring the intermediate signal processing result to a succeeding signal processing circuit. Each selection circuit is provided with supplemental signal input terminals for externally receiving signals, respectively, and each of said selection can serve to select either of the intermediate signal processing result or the signal received at a supplemental signal input terminal on the basis of a predetermined control signal, with the selected signal being supplied to the succeeding signal processing circuit.