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:
Jan. 17, 2012
Filed:
Jun. 05, 2003
Charley Selvidge, Wellesley, MA (US);
Robert W. Davis, Issaquah, WA (US);
Peer Schmitt, Paris, FR;
Joshua D. Marantz, Brookline, MA (US);
Charley Selvidge, Wellesley, MA (US);
Robert W. Davis, Issaquah, WA (US);
Peer Schmitt, Paris, FR;
Joshua D. Marantz, Brookline, MA (US);
Mentor Graphics Corporation, Wilsonville, OR (US);
Abstract
A system and method for compressing trace data from an emulation system. Scan chains may receive trace data from configurable logic blocks inside one or more emulation chips, and the data received from the scan chains may be compressed. Where delta compression is used, the scan chains may also perform a delta detection function. Alternatively, delta detection may be performed using the outputs of the scan chains. In addition, event detectors may be implemented within or outside of the scan chains. Compression of the trace data may include receiving a plurality of data sets and performing compression along cross-sections of the combined data sets.