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:
Nov. 19, 2002
Filed:
Dec. 29, 1999
Hyun Lee, Allentown, PA (US);
David W. Potter, Allentown, PA (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
The present invention comprises a clocked bus keeper circuit that does not drive the bus during the first half of a clock cycle and then holds the value driven onto the bus during the first half of the clock cycle for the second half of the clock cycle. Accordingly, true data drivers on the bus drive the bus during the first half of the clock cycle without the need to overcome the value driven by the bus keeper, but during the second half of the clock cycle, the bus keeper holds the data driven during the first half of the clock cycle. In this manner, there is no bus contention between the true bus data drivers and the bus keeper.