Wearable electronic device
First Claim
1. A wearable electronic device, comprisinga first sensor providing a first sensor signal, which first sensor is a temperature sensor or a humidity sensor,a second sensor providing a second sensor signal, which second sensor is a temperature sensor or a humidity sensor,wherein the first sensor and the second sensor are of the same type,a control unit configured to determine based on the first sensor signal and the second sensor signal if the device is worn by a user, and configured to provide an output signal indicative of a result of the determination,a common channel including at least one opening, the at least one opening facing a body part of the user when the device is worn by a user, andwherein the first sensor is arranged in the common channel at a first distance from the at least one opening and the second sensor is arranged in the common channel in spatial series with the first sensor, at a second distance from the at least one opening, the first distance being less than the second distance, the first and second sensors and the common channel being so configured and arranged that the first and second sensors sense an air volume propagated in the common channel and measure a heat flux or humidity flux determined as a difference between the first sensor signal and the second sensor signal.
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Accused Products
Abstract
A wearable electronic device (100) comprises a sensor (1) providing a sensor signal (s1), which sensor (1) is one of a temperature sensor and a humidity sensor. A control unit (3) determines, subject to at least the sensor signal (s1), if the wearable electronic device (100) is worn by a user, and provides an output signal (t1) indicative of a result of the determination.
28 Citations
20 Claims
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1. A wearable electronic device, comprising
a first sensor providing a first sensor signal, which first sensor is a temperature sensor or a humidity sensor, a second sensor providing a second sensor signal, which second sensor is a temperature sensor or a humidity sensor, wherein the first sensor and the second sensor are of the same type, a control unit configured to determine based on the first sensor signal and the second sensor signal if the device is worn by a user, and configured to provide an output signal indicative of a result of the determination, a common channel including at least one opening, the at least one opening facing a body part of the user when the device is worn by a user, and wherein the first sensor is arranged in the common channel at a first distance from the at least one opening and the second sensor is arranged in the common channel in spatial series with the first sensor, at a second distance from the at least one opening, the first distance being less than the second distance, the first and second sensors and the common channel being so configured and arranged that the first and second sensors sense an air volume propagated in the common channel and measure a heat flux or humidity flux determined as a difference between the first sensor signal and the second sensor signal.
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20. A method for determining if a wearable electronic device is worn by a user, comprising
i) sensing a first temperature using a first temperature sensor or a first humidity using a first humidity sensor, ii) further sensing a second temperature using a second temperature sensor or a second humidity using a second humidity sensor, wherein sensing and further sensing are done by sensors of the same type, iii) determining, based on the first temperature and the second temperature or the first humidity and the second humidity, if the wearable electronic device is worn by the user, and iv) providing an output signal indicative of a result of the determination, wherein the wearable electronic device comprises a common channel including at least one opening, the at least one opening facing a body part of the user when the device is worn by the user, and wherein the first sensor is arranged in the common channel at a first distance from the at least one opening and the second sensor is arranged in the common channel in spatial series with the first sensor at a second distance from the at least one opening, the first distance being less than the second distance, the first and second sensors and the common channel being so configured and arranged that the first and second sensors sense an air volume propagated in the common channel and measure a heat flux or humidity flux determined as a difference between the first sensor signal and the second sensor signal.
Specification