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:
Feb. 17, 2009
Filed:
Feb. 25, 2005
Jeremy B. Goolsby, Longmont, CO (US);
Jeremy B. Goolsby, Longmont, CO (US);
Xilinx, Inc., San Jose, CA (US);
Abstract
Method and apparatus for detecting timeout for packets transmitted in a packet-switched point-to-point communication system is described. In one example, timeout logic in a transmitter includes a master time counter, a first-in-first-out circuit (FIFO), difference logic, a timeout counter, and timeout detection logic. The master time counter generates a time signal, and the FIFO stores time stamps for the packets in response to the time signal. The FIFO provides a time stamp to the difference logic in response to a packet acknowledgement. The difference logic computes a time left value in response to the time stamp, the time signal, and a predefined timeout value. The timeout counter counts down from the time left value towards a zero value. The timeout detection logic produces a timeout signal in response to the timeout counter reaching the zero value.