Patent ID: 9274007
Filing Date: 2016-03-01
CPC Classification: G01K,G11C,H03K

Claim Text:
1. A device, comprising: a first temperature sensor circuit setting a temperature range upper limit value, the first temperature sensor circuit provides a first direction output signals, the first direction output signal having a logic level transition in response to a temperature of the device reaching about the temperature range upper limit value; a second temperature sensor circuit setting a temperature range lower limit value, the second temperature sensor circuit provides a second direction output signal, the second direction output signal having a logic level transition in response to the temperature of the device reaching about the temperature range lower limit value; and a single counter circuit coupled to receive the first direction output signal and the second direction output signal and provide a count value, the counter circuit incrementally changes the count value by an incremental amount in a first direction in response to the first direction output signal and incrementally changes the count value by the incremental amount in a second direction in response to the second direction output signal, wherein: the temperature range upper limit value and the temperature range lower limit value changes in response to the incremental change in the count value.