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. 16, 1999
Filed:
Aug. 05, 1996
Masao Ishiguro, Yokohama, JP;
Keiji Kojima, Sagamihara, JP;
Kiyokazu Nishioka, Odawara, JP;
Tohru Nojiri, Tokyo, JP;
Kazuhiko Tanaka, Fujisawa, JP;
Yoshifumi Fujikawa, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A unit for efficiently carrying out a comparison operation and making it possible to prevent a generation of a disturbance in a pipeline during a pipeline operation is provided. This unit includes a first storage unit for storing storage information on two data to be compared, kind of comparison operation and result of comparison operation respectively, a second storage unit for storing said two data, kind of comparison operation and result of comparison operation, an operating unit for carrying out a predetermined plurality of kinds of comparison operations for two data, a selecting unit for selecting any one of results of comparison operation, and a processing unit for carrying out a processing of a comparison operation. The processing unit checks a storage destination of two data to be compared, gives the two data to the operating unit, checks a storage destination of a kind of a comparison operation, controls the selecting unit to select a result of an operation corresponding to the kind of comparison operation, and stores the operation result into a storage destination in the second storage unit.