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Electronics with Coherent Self-Mixing Proximity Sensors

A proximity sensor and self-mixing technology, applied in the field of optical sensors, can solve problems such as inaccurate measurement

Active Publication Date: 2022-07-08
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the intensity of emitted infrared light reflected or backscattered from nearby objects can be affected by the reflectivity and bidirectional reflectance distribution function (BRDF) of the object, which can lead to inaccurate measurements

Method used

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  • Electronics with Coherent Self-Mixing Proximity Sensors
  • Electronics with Coherent Self-Mixing Proximity Sensors
  • Electronics with Coherent Self-Mixing Proximity Sensors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] figure 1 An exemplary electronic device of the type that may be provided with one or more optical proximity sensors, such as coherent self-mixing proximity sensors, is shown in . Electronic device 10 may be a computing device (such as a laptop computer, a computer monitor including an embedded computer, a tablet computer), a cellular phone, a media player, or other handheld or portable electronic device, a smaller device (such as a wristwatch) Watch devices), hanging devices, earphone or earpiece devices such as wireless earbuds, devices embedded in eyeglasses or other devices worn on the user's head, or other wearable or miniature devices, televisions, not containing embedded computer monitors for modern computers, gaming devices, navigation devices, embedded systems (such as systems in which electronic devices with displays are installed in kiosks or cars), covers for tablets or other devices, keyboards in covers, A keyboard in a computer, a standalone keyboard acces...

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PUM

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Abstract

The present invention is entitled "Electronic Device with Coherent Self-Mixing Proximity Sensors". The invention discloses an electronic device. The electronic device, such as an earplug, may have control circuitry mounted in the housing. The housing may have a portion such as an ear portion having a speaker port through which the speaker plays audio and a stem portion extending from the ear portion. Proximity sensors can be formed in electronic devices. For example, one or more proximity sensors may be formed on the ear portion to detect when the user inserts the earbud into the user's ear and / or one or more proximity sensors may be formed on the stem portion to detect when the user passes The stem is holding the earbud, or when the user is providing finger touch input on the stem portion, such as taps, swipes, and / or other gestures. The proximity sensor may be an optical proximity sensor, such as a coherent self-mixing proximity sensor.

Description

[0001] This patent application claims priority to US Patent Application No. 16 / 352,588, filed March 13, 2019, and US Provisional Patent Application No. 62 / 653,444, filed April 5, 2018, which are hereby incorporated by reference in their entirety. method is incorporated herein. technical field [0002] The present invention relates generally to electronic devices, and more particularly, to optical sensors for electronic devices. Background technique [0003] Electronic devices may include optical sensors. For example, earbuds may contain optical proximity sensors based on infrared light emitting diodes and infrared photodetectors. Optical proximity sensors can use infrared light-emitting diodes to emit infrared light. The emitted infrared light can be reflected or backscattered from objects near the proximity sensor. Infrared photodetectors can be used to measure the intensity of reflected or backscattered light to determine whether objects are near or far away from the se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/10G01D5/34
CPCH04R1/1091H04R1/1041G01D5/34H04R1/1016H03K17/943G01B11/026G01S17/08G01S7/4916H04R2460/15G01J1/0403H03K17/945H04R29/001
Inventor M·姆特鲁M·T·温克勒O·A·莎米尔
Owner APPLE INC