Apple Inc.

Kuo Jen Huang

Chin San Han

Habib Sami Karaki

James C Clements

Wegene H Tadele

Joseph R Lee

Ali M Amin

Daniel W Labove

Esther Chen

Wanfeng Huang

Fred Y Chou

Chia-Hsien Lin

Craig C D'souza

Hongling Chen

Robust estimation of temperatures inside and outside a device can be achieved using one or more absolute temperature sensors optionally in conjunction with thermopile heat flux sensors. Thermopile temperature sensing systems can measure a temperature gradient across two locations within the device, to estimate absolute temperature at locations that are impractical to measure using absolute temperature sensors. Using heat flux models associated with the device, the thermopile temperature sensing system can be used to estimate temperature associated with objects that contact an outer surface of the device, such as a user's skin temperature. Additionally, the thermopile temperature sensing system can be used to estimate ambient air temperature. Within a device, temperature measurements from the thermopile temperature sensors can be used to compensate sensor measurements, such as when the accuracy or reliability of a sensor varies with temperature.

Temperature sensing systems and methods including multiple temperature sensors

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San Jose, CA, United States of America

Kuo Jen Huang