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:
Jun. 13, 2017
Filed:
May. 06, 2015
Apple Inc., Cupertino, CA (US);
Gary L. Stirk, West Melbourne, FL (US);
Apple Inc., Cupertino, CA (US);
Abstract
An apparatus may include an energy monitoring circuit configured to generate a bitstream dependent upon an amount of charge passing through a sensing unit. The apparatus may also include a control unit configured to receive the bitstream from the energy monitoring circuit, and modify a count value in response to a determined state of each bit of the bitstream. The control unit may also read a first value of the count value at a first time and at a later second time read a second value of the count value. The control unit may assert a wake-up signal in response to a determination that a difference between the first value and the second value is greater than a predetermined threshold value.