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:
Mar. 06, 2018
Filed:
Jan. 15, 2016
Marvell International Ltd., Hamilton, BM;
Edy Susanto, Singapore, SG;
Foo Leng Leong, Singapore, SG;
Marvell International Ltd., Hamilton, BM;
Abstract
A circuit comprises a position sensing circuit to sense first and second position states of a rotating object, a first counter storing a first counter value, and a second counter storing a second counter value. The first counter value is incremented when the position states are the same, the second counter value is incremented when the position states indicate that the rotating object has rotated in a direction, and a fault is indicated when either counter value is equal to or greater than their respective limits. A method comprises sensing two position states of a rotating object, incrementing a first counter value when the position states are the same, incrementing a second counter value when the rotating object is determined, using the position states, to have rotated in a direction, and indicating a fault when either counter value is equal to or greater than their respective limits.