Data processing: structural design – modeling – simulation – and em – Simulating electronic device or electrical system – Circuit simulation
Reexamination Certificate
2007-10-16
2007-10-16
Phan, Thai (Department: 2128)
Data processing: structural design, modeling, simulation, and em
Simulating electronic device or electrical system
Circuit simulation
C703S002000, C703S022000, C710S105000
Reexamination Certificate
active
10737154
ABSTRACT:
While simulating a circuit described by the netlist, a circuit simulator produces a dump file containing a set of waveform data sequences, each corresponding to a separate signal within the circuit, and representing states of its corresponding signal at a succession of times during the circuit simulation. Based on a mapping of the waveform data sequences to lines of a bus, and on transaction data models describing characteristic signal patterns appearing on the bus during each type of transaction that can occur on the bus, a transaction analysis system identifies transactions that occurred on the bus during the simulation. The transaction analysis system also notes a time during the circuit simulation in which each transaction occurred, and generates a display including a separate representation of each identified transaction positioned to represent the time the transaction occurred.
REFERENCES:
patent: 6188975 (2001-02-01), Gay
patent: 7130942 (2006-10-01), Gemelli et al.
patent: 2004/0249757 (2004-12-01), Walmsley et al.
Material Appearing on Structured Design Verification Website , (http:www.sdvinc.com) as of Dec. 9, 2003, no specific papers, INF.
Chen Chung-Chia
Chen Sheng-Chiang
Hsiao Shih-Fang
Lin Gwo-Ching
Lu Mou-Tien
Bedell Daniel J.
Phan Thai
Smith-Hill and Bedell
Springsoft, Inc.
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