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:
Dec. 29, 2015
Filed:
Feb. 27, 2014
Perry H. Pelley, Austin, TX (US);
George P. Hoekstra, Austin, TX (US);
Ravindraraj Ramaraju, Round Rock, TX (US);
Perry H. Pelley, Austin, TX (US);
George P. Hoekstra, Austin, TX (US);
Ravindraraj Ramaraju, Round Rock, TX (US);
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Abstract
A circuit for determining a threshold indication of temperature with respect to a threshold temperature. The circuit includes a timer circuit and a temperature sensor circuit having an counter whose output has a relationship to temperature. At the end of a period determined by the timer circuit, a comparator circuit compares the count of the counter with an indication of the threshold temperature to determine a state of the threshold indication. In response to a change in state of the threshold indication, the circuit changes one of the count time or the counter output's relationship to temperature to provide a hysteresis for the threshold indication.