Apple Inc.

Daniel W Labove

Osamu Yabe

Yoji Hamada

Timothy S Lui

Rimple Bhatia

William Leith

James C Clements

Wegene H Tadele

Ali M Amin

Craig C D'souza

Esther Chen

Kuo Jen Huang

Wanfeng Huang

Fred Y Chou

Chia-Hsien Lin

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

Characteristics of a watch band can change when placed in different configurations, and each of these characteristics can be correlated with each of the various configurations. The characteristics can be measured to detect in which of the various configurations the watch band is in. For example, the watch band can include an adjustable capacitor that changes it capacitance when the watch band changes its configuration. For example, the capacitance can change based on stretching of the watch band, bending of the watch band, and/or securement and release of an engagement element. The watch or another device can perform one or more operations based on the detected characteristic and configuration of the watch band.

Watch band with fit detection

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San Francisco, CA, United States of America

Daniel W Labove