{"id":22155,"date":"2022-08-16T09:30:58","date_gmt":"2022-08-16T01:30:58","guid":{"rendered":"https:\/\/ljdevice.com.tw\/?p=22155\/"},"modified":"2022-08-16T09:30:58","modified_gmt":"2022-08-16T01:30:58","slug":"apples-new-patent-details-elements-rumored-body-temperature-sensor","status":"publish","type":"post","link":"https:\/\/ljdevice.com.tw\/en\/apples-new-patent-details-elements-rumored-body-temperature-sensor\/","title":{"rendered":"Apple\u2019s new patent details elements of the rumored body temperature sensor"},"content":{"rendered":"<div class=\"td-post-author-name\">\n<div class=\"td-author-by\">By Niel Smith\u00a0 August 10, 2022<\/div>\n<div class=\"td-author-by\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-22156\" src=\"https:\/\/ljdevice.com.tw\/wp-content\/uploads\/2022\/08\/Apple-Watch-temperature-sensor-design-696x438-300x189.jpg\" alt=\"\" width=\"300\" height=\"189\" \/><\/div>\n<\/div>\n<p><!--more--><\/p>\n<p>There have been numerous reports about upcoming temperature sensors on wrist-based wearables. Although these reports and rumors have been focused on the Apple Watch Series 8 and Samsung Galaxy Watch 5, the latest read is that the body temperature sensors may not be coming in either of these watches.<\/p>\n<h3><strong>Related reading:<\/strong><\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/www.myhealthyapple.com\/wearables-and-body-temperature-monitoring-current-products-and-what-to-expect-in-the-future\/\" target=\"_blank\" rel=\"noopener noreferrer\">Wearables and Body Temperature Monitoring \u2013 current products and what to expect in the future<\/a><\/strong><\/li>\n<\/ul>\n<h2><strong>Apple\u2019s temperature sensor patent details<\/strong><\/h2>\n<p data-slot-rendered-dynamic=\"true\">Apple\u2019s latest patent, released today, \u201c<b>Temperature gradient sensing in portable electronic devices,\u00a0<\/b>\u201c provides some input into how the company may approach the design related to this feature.<\/p>\n<p>This Apple patent was filed on July 21, 2020, and approved on August 9th, 2022.<\/p>\n<p>One of the main inventors of this patent is\u00a0<strong>Chad Bossetti,<\/strong>\u00a0who used to work in the Apple Health Technologies division for more than seven years.<\/p>\n<p>The other key person involved with this patent,\u00a0<strong>James Clements, is a Mechanical R&amp;D engineering manager with Apple Health Technologies.<\/strong><\/p>\n<p>One of the key challenges of incorporating a conventional temperature sensor into the portable device is the amount of volume (space) the sensor will need.<\/p>\n<p>According to this patent, Apple\u2019s idea is to enclose a temperature sensing system, including a temperature sensor and a differential temperature probe.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p>The\u00a0<em>differential temperature probe includes a flexible substrate<\/em>\u00a0defining two ends.<\/p>\n<p>A first end is thermally coupled to the temperature sensor, and a second end is thermally coupled to a surface, volume, or electronic device component.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p>The temperature probe is an in-plane thermopile with a series-coupled set of thermocouples extending from the first to the second.<\/p>\n<p>According to Apple, when it comes to wearable devices like the Apple Watch,<\/p>\n<blockquote data-slot-rendered-dynamic=\"true\"><p>\u201cBROADLY, A WEARABLE ELECTRONIC DEVICE INCORPORATING A TEMPERATURE SENSING SYSTEM AS DESCRIBED HEREIN CAN DETECT THE ABSOLUTE TEMPERATURE OF MULTIPLE DISCRETE LOCATIONS OR VOLUMES WITHOUT REQUIRING MULTIPLE TEMPERATURE DISCRETE TEMPERATURE SENSORS. AS A RESULT, A WEARABLE ELECTRONIC DEVICE CAN RECOVER AND\/OR REALLOCATE SUBSTANTIAL INTERNAL VOLUME OTHERWISE CONVENTIONALLY ALLOCATED TO MULTIPLE TEMPERATURE SENSORS AND CAN BE MANUFACTURED AT A LOWER COST WITHOUT SACRIFICING THE PERFORMANCE OF SENSORS OF SUBSYSTEMS OF THE WEARABLE ELECTRONIC DEVICE THAT ARE TEMPERATURE-DEPENDENT. \u201c<\/p><\/blockquote>\n<div class=\"mv-ad-box\" data-slotid=\"content_2_btf\"><\/div>\n<h3><b>Apple Watch and body temperature measurement<\/b><\/h3>\n<p data-slot-rendered-dynamic=\"true\">In the case of the Apple Watch, a differential temperature probe may be implemented on a\u00a0<b>flexible thin-film substrate<\/b>\u00a0that may be routed to a probe location that is substantially smaller than, thinner than, or otherwise not able to be thermally coupled to a conventional temperature sensor.<\/p>\n<p>A thin-film differential temperature probe may be routed around or through other components within the wearable electronic device to preserve space within the watch body.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p>In this manner, the wearable electronic device can be designed and manufactured with fewer positional and\/or component constraints.<\/p>\n<p>It may not be required to position a temperature sensor in any particular location of the wearable electronic device if a differential temperature probe, as described, can be routed to any arbitrary probe location.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p>The probe locations can be positioned on one or more areas to evaluate a user\u2019s skin or body temperature or the wearer of a wearable electronic device.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p>For example, in some embodiments, a differential temperature probe can position its second end (also referred to as a \u201cdistal\u201d end) such that the second end is thermally coupled to a portion of the housing of the wearable electronic device that touches a user\u2019s skin, such as a back crystal of a smartwatch.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p data-slot-rendered-dynamic=\"true\">As a result of these constructions, the wearable electronic device can obtain a highly accurate and\u00a0<strong>highly precise measurement of the user\u2019s skin temperature,<\/strong>\u00a0which, in turn, can be leveraged for: health or fitness recommendations, health or fitness tracking, and\u00a0biometric identification.<\/p>\n<div class=\"mv-ad-box\" data-slotid=\"content_4_btf\">\n<div class=\"mv-rail-frame\" data-slotid=\"content_4_btf\"><\/div>\n<p><strong>The idea of a temperature sensing system goes beyond the Apple Watch<\/strong><\/div>\n<p>According to the patent document, the temperature sensing system can be leveraged differently when incorporated into other classes of wearable electronic devices.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p>For example, a smartwatch may leverage a temperature sensing system to detect a processor\u2019s temperature and a back crystal.<\/p>\n<p><span class=\"Apple-converted-space\">\u00a0<\/span>In another example, a pair of wireless headphones or earbuds may leverage a temperature sensing system to detect a temperature of an inner ear of a wearer of those headphones or earbuds.<\/p>\n<p>The temperature measurement system of an Apple Pencil may help to detect whether a user is grasping the stylus.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p>As for Samsung Galaxy Watch 5 and skin temperature measurement sensors, the Samsung Unpacked event should give us all the details!<\/p>\n<p>Source:<a href=\"https:\/\/www.myhealthyapple.com\/apple-watch-body-temperature-sensor-design\/\">Apple\u2019s new patent details elements of the rumored body temperature sensor<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>By Niel Smith\u00a0 August 10, 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