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:
May. 14, 2019
Filed:
Apr. 27, 2016
Arm Limited, Cambridge, GB;
Ian David Andrews, Sheffield, GB;
Andrew David Tune, Dronfield, GB;
Daniel Adam Sara, Sheffield, GB;
George Robert Scott Lloyd, Sheffield, GB;
Arm Limited, Cambridge, GB;
Abstract
A crossbar switch comprises two or more data inputs, two or more data outputs, a bufferbetween the inputs and the outputs, an arbiterassociated with each output and configured to select data from one of the inputs when there is contention at the output, a bypassassociated with the buffer so that the buffer can be enabled or disabled, and a buffer controllerconfigured to enable or disable the buffer. The buffer controller further includes an accumulatorconfigured to assess whether a time-based average of the contention rate, or an average injection rate, at the output associated with the buffer, has reached a predetermined threshold. This prevents the buffer being enabled when the contention is only intermittent, which reduces power consumption without significant loss of performance.