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. 19, 2019
Filed:
Apr. 27, 2017
Qualcomm Incorporated, San Diego, CA (US);
Michael Kevin Batenburg, San Diego, CA (US);
Vincent Pierre Le Roy, San Diego, CA (US);
Praveen Kumar Origanti, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
In certain aspects of the disclosure, an apparatus includes first and second semaphore registers disposed in a first power domain. A common address bus is coupled to the first and second semaphore registers, and a semaphore lock is disposed in the first power domain and coupled to the first and second semaphore registers. The semaphore lock is controlled by the first and second semaphore registers, and controls whether a signal from a second power domain is permitted to propagate to the first power domain. The first and second semaphore registers may be associated with first and second register addresses, respectively, which are selected to provide a substantially maximized Hamming distance between them. The first and second semaphore registers may have a write order expectation enforced between them.