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:
Dec. 23, 1997
Filed:
Apr. 29, 1996
Toshio Oguma, Ebina, JP;
Yoshinobu Okazaki, Hadano, JP;
Osamu Tada, Hadano, JP;
Shigeki Yokotani, Minamiashigara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A logic simulation system for simulating a quality of logic description of a tested electric circuit includes a storage for storing execution results of logic simulation which was conducted for the electric circuit in the past and for which operations of the circuit have been confirmed, logic description to be tested for the electric circuit, and test data of the logic description to be tested. Logic simulation is conducted according to the test data and the logic description to be tested. Results of the logic simulation are compared with the past logic simulation results of operation by correcting time values according to a predetermined rule so as to simulate quality of the logic description, thereby outputting quality of the logic description in a visible form.