U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

System and method for LSI circuit analysis

Patent 4386403 Issued on May 31, 1983. Estimated Expiration Date: Icon_subject May 31, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3653072

Inventors

Application

No. 06/108911 filed on 12/31/1979

US Classes:

716/17Programmable integrated circuit (e.g., basic cell, standard cell, macrocell)

Examiners

Primary: Shaw, Gareth D.
Assistant: Heckler, Thomas M.

Attorney, Agent or Firm

International Class

G06F 17/50 (20060101)

Abstract

A system and method for analysis of circuits which include a large number of circuit elements. Blocks of circuitry which define logical circuit functions such as gates and latches are set up as macromodels. Each macromodel need be represented in its full detail only once. Means are provided to recognize latency, or quiescence, of macromodels so that time may be saved in the circuit analysis when a macromodel is latent.

Other References

  • Shalla, L., "Automatic Analysis of Electronic Digital Circuits Using List Processing", Comm. of the ACM, vol. 9, No. 5, May 1966, pp. 372-380
  • Dammkoehler, R. A., "A Macromodular Systems Simulator (MSZ)", Spring Joint Computer Conf., 1967, pp. 371-376
PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$16.95more info
 
Sign InRegister
Username  
Password   
forgot password?