公开(公告)号：US20220087529A1

公开(公告)日：2022-03-24

申请号：US17030546

申请日：2020-09-24

Applicant: PIXART IMAGING INC.

Inventor： CHUN-CHIH CHEN ,  YUNG-CHANG LIN ,  MING-HSUAN KU

IPC: A61B5/00

Abstract: A wearable device and a method for performing a registration process in the wearable device are provided. The wearable device includes a light source, a light sensor and a microcontroller that performs the method. In the method, the light source is activated to emit a detection light and the light sensor senses a reflected light. A light intensity of the reflected light is calculated. A registration value is produced based on the light intensity. Specifically, the detection light with a specific frequency to be registered in the registration value is used as a reference to detect whether the wearable device is properly worn by a person. For example, since the wearable device can be worn on the person's wrist, the registration value is used to detect whether the wearable device is away from the wrist.

公开(公告)号：US20200242226A1

公开(公告)日：2020-07-30

申请号：US16850753

申请日：2020-04-16

Applicant: PixArt Imaging Inc.

Inventor： REN-HAU GU ,  CHIH-HSIN LIN ,  TZUNG-MIN SU ,  YUNG-CHANG LIN ,  JIAN-CHENG LIAO ,  CHUN-CHIH CHEN

IPC: G06F21/32 ,  H04W12/00 ,  G06F1/16

Abstract: A wearable device including a skin sensor and a processor is provided. The processor is configured to receive an authentication data for authenticating a user when a wearing state of the wearable device is adjacent to a skin surface of the user, execute a predetermined function in response to a request when the authentication data matches a pre-stored data and the skin sensor determines that the wearable device does not leave the skin surface after the authentication data is received, and reject or ignore the request when the skin sensor determines that the wearable device leaves the skin surface before the predetermined function is executed.

公开(公告)号：US20150022360A1

公开(公告)日：2015-01-22

申请号：US14299099

申请日：2014-06-09

Applicant: PIXART IMAGING INC.

Inventor： CHUN-WEI CHEN ,  YEN-MIN CHANG ,  YIN-HUI LEE ,  CHUN-CHIH CHEN ,  YEN-CHANG WANG

IPC: G08B21/18

CPC classification number: G06F3/048 ,  A61B2503/20 ,  G16H50/20

Abstract: There is provided an input device including at least one input unit, a trigger detection unit, a storage unit and an analysis and processing unit. The at least one input unit is for inputting a plurality of trigger events by a user. The trigger detection unit is configured to detect the trigger events of the at least one input unit and generate a trigger signal corresponding to each of the trigger events. The storage unit is configured to record an operating condition associated with the user. The analysis and processing unit is configured to analyze an operating pattern of the trigger signals and determine a warning time according to the operating condition and the operating pattern.

Abstract translation: 提供了包括至少一个输入单元，触发检测单元，存储单元和分析和处理单元的输入装置。 所述至少一个输入单元用于由用户输入多个触发事件。 触发检测单元被配置为检测至少一个输入单元的触发事件并产生与每个触发事件对应的触发信号。 存储单元被配置为记录与用户相关联的操作条件。 分析处理单元被配置为分析触发信号的操作模式，并根据操作条件和操作模式确定警告时间。

公开(公告)号：US20240081649A1

公开(公告)日：2024-03-14

申请号：US18517873

申请日：2023-11-22

Applicant: PIXART IMAGING INC.

Inventor： CHUN-CHIH CHEN ,  YUNG-CHANG LIN ,  MING-HSUAN KU

IPC: A61B5/00

CPC classification number: A61B5/0064 ,  A61B5/0082 ,  A61B5/681 ,  A61B5/6844 ,  A61B2560/0266

Abstract: A wearable device and a method for performing a registration process in the wearable device are provided. The wearable device includes a light source, a light sensor and a microcontroller that performs the method. In the method, the light source is activated to emit a detection light and the light sensor senses a reflected light. A light intensity of the reflected light is calculated. Specifically, an upper limit and a lower limit are referred to for detecting whether the wearable device is properly worn by a person. For example, since the wearable device can be worn on the person's wrist, the registration value is used to detect whether the wearable device is away from the wrist.