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:
Mar. 16, 1999
Filed:
Jan. 29, 1997
Masamichi Kawarabayashi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An optimization apparatus comprises a hierarchical circuit specification input for entering a logic circuit having a hierarchical structure, a delay constraint input for entering delay constraints of the logic circuit, a circuit database for storing and holding the logic circuit and delay constraint, a timing analyzer for performing the timing analysis of the logic circuit, a delay constraint distributor for distributing the delay constraints to each hierarchical configuring the logic circuit according to optimization possibility of the logic circuit, an optimizing unit for performing the delay optimization of the logic circuit according to the delay constraints distributed to the respective hierarchical sub-circuit of the logic circuit, a library input for entering library information to be used for the timing analysis of the logic circuit, a library database for holding the library information, and an output for outputting the optimized logic circuit.