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.:

US 6839869 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 04, 2005

Filed:

May. 08, 2001
Applicants:

Yoshifumi Doi, Tokyo, JP;

Teruaki Kanzaki, Tokyo, JP;

Inventors:

Yoshifumi Doi, Tokyo, JP;

Teruaki Kanzaki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B06F 1100 ;
U.S. Cl.
CPC ...
Abstract

A trace control circuit includes a branch event generation circuithaving an address abbreviation information generation circuitfor detecting a portion in which a branch-source address and a branch-destination address are overlapped with each other from the upper-bit side of the address data thereof and generating branch-destination address abbreviation information on the basis of the result of the detection, and a trace data abbreviation circuitfor performing abbreviation of one part of trace data in accordance with the branch-destination address abbreviation information and outputting the partly abbreviated trace data, whereby the number of data packets of the trace data can be reduced to speed up the output operation of the trace data, and the ability to output trace data in real time can be thereby improved greatly.


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