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.

Date of Patent:
Jul. 14, 2009

Filed:

Dec. 05, 2006
Applicants:

Lewis Nardini, Dallas, TX (US);

Manisha Agarwala, Richardson, TX (US);

John M. Johnsen, Dallas, TX (US);

Inventors:

Lewis Nardini, Dallas, TX (US);

Manisha Agarwala, Richardson, TX (US);

John M. Johnsen, Dallas, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/00 (2006.01); G06F 13/12 (2006.01); G06F 9/455 (2006.01); G06R 31/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

This invention provides trace address compression by comparing respective bytes of a current trace address with a stored comparison address. Only the least significant bytes of the current trace address that do not match the comparison address or are less significant than any section of the current trace address that does not match the comparison address are transmitted. This sometimes reduces the amount of data that needs to be transmitted. The comparison address is specified by a central processing unit via a memory mapped register write operation.


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