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:
Aug. 02, 2011
Filed:
Dec. 13, 2006
William Tsu, San Jose, CA (US);
Ashish Kaul, Santa Clara, CA (US);
William Tsu, San Jose, CA (US);
Ashish Kaul, Santa Clara, CA (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
Circuits, methods, and apparatus that provide transactions to wake an external device from a low-power state before a data transfer. This prevents an interruption that would be caused if the external device exited the low-power state during the data transfer. One example monitors a need for data by a first device. At a predetermined time before data is needed, the first device sends a transaction to a second device. The transaction is intended to wake the second device from a low-power state. If the first device has information to indicate that the second device is not in a low-power state, this transaction can be skipped. The first device then requests data. Later transactions to the second device do not result in the second device exiting the low-power state and therefore do not interrupt or cause delays in the data transfer.