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1. 发明授权

US10148286B2 Keyboard scanning circuit, keyboard and scanning method thereof 有权
公开(公告)号：US10148286B2
公开(公告)日：2018-12-04
申请号：US15010912
申请日：2016-01-29
申请人： LITE-ON ELECTRONICS (GUANGZHOU) LIMITED , LITE-ON TECHNOLOGY CORPORATION
发明人： Chien-Chih Chen , Er-Hao Chen
IPC分类号： G06F3/02 , H01H13/70 , H03M11/20 , G06F3/023
摘要： A keyboard scanning circuit includes a plurality of switching elements, M scanning lines and N sensing lines. Each of the sensing lines has a common node extended to M transmission lines. A switching element is coupled where one of the transmission lines and one of the scanning lines intersects. Two scanning lines correspondingly coupled through two switching elements to two transmission lines extended from one sensing line are different from each other.

2. 发明授权

US09791945B2 Optical mouse and method for performing configured function thereof 有权
公开(公告)号：US09791945B2
公开(公告)日：2017-10-17
申请号：US15186649
申请日：2016-06-20
申请人： LITE-ON ELECTRONICS (GUANGZHOU) LIMITED , LITE-ON TECHNOLOGY CORPORATION
发明人： Chin-Fa Wu , Yao-Chih Yang , Er-Hao Chen , Chih-Wen Su , Chen-Yu Tsai
IPC分类号： G06F3/03 , G06F3/0354 , G06F3/0346
CPC分类号： G06F3/0317 , G06F3/0346 , G06F3/03543 , G06F3/038
摘要： An optical mouse is provided with a conversion unit, a control unit, an optical sensing unit, a light emitting unit, and a switch unit. The conversion unit is electrically connected to a working voltage source, the control unit, and the optical sensing unit. The conversion unit is configured to convert voltage to supply power to the control unit, the optical sensing unit, and the light emitting unit. The control unit is electrically connected to the optical sensing unit. The switch unit is electrically connected to the light unit. When the switch unit is in a turn-off state, the light emitting unit stops emitting light toward a trace surface. The optical sensing unit senses a darkness and transfers darkness data to the control unit. The control unit performs a configured function based on the darkness data.

3. 发明授权

US11048119B2 Keyboard device and operation method thereof 有权
公开(公告)号：US11048119B2
公开(公告)日：2021-06-29
申请号：US16513711
申请日：2019-07-17
申请人： LITE-ON ELECTRONICS (GUANGZHOU) LIMITED , Lite-On Technology Corporation
发明人： Chun-Lin Chen , Chin-Fa Wu , Wen-Tong Liu , Er-Hao Chen , Ming-Fu Yen
IPC分类号： H01H13/83 , G02F1/13357
摘要： A keyboard device and an operating method thereof are provided. The keyboard device includes a microcontroller, a drive circuit, a backlight module, and a plurality of key units. The microcontroller is coupled to a computer device. A detection module of the computer device detects an input mode of the computer device. The plurality of key units is disposed on the backlight module. The plurality of key units each has a plurality of character symbols corresponding to different input modes. The microcontroller outputs a control signal to the drive circuit according to the input mode. The drive circuit drives the backlight module according to the control signal to selectively illuminate one of the plurality of character symbols of each of at least a portion of the plurality of key units.

4. 发明授权

US09003069B2 Input device for controlling multiple computers and the controlling method thereof 有权
标题翻译：用于控制多台计算机的输入装置及其控制方法
公开(公告)号：US09003069B2
公开(公告)日：2015-04-07
申请号：US13793144
申请日：2013-03-11
申请人： Lite-On Electronics (Guangzhou) Limited , Lite-On Technology Corporation
发明人： Tao-Cheng Yen , Er-Hao Chen
IPC分类号： G06F3/00 , G06F3/033 , G06F3/02 , G06F3/038
CPC分类号： G06F3/0227 , G06F3/038
摘要： An input device for controlling multiple computers includes a storing unit, a sensing unit, a controlling unit, and a transmitting unit. The controlling unit calculates a moving direction and a displacement value of the input device according to the sensing unit to determine one of the computers which the input device is in control of and generates an input command for it. The input command includes identification of the controlled computer and is transmitted to multiple computers. The computer corresponding to the identification performs the input command. The moving direction corresponds to a pointer direction of the computer. The controlling unit accumulates the displacement value to be a first accumulated displacement value when the input device moves toward to a first pointer direction. When the first accumulated displacement value is larger than a threshold value, the controlling unit switches the input device to control another one of computers.
摘要翻译：用于控制多台计算机的输入装置包括存储单元，感测单元，控制单元和发送单元。控制单元根据感测单元计算输入装置的移动方向和位移值，以确定输入装置正在控制的计算机之一并为其生成输入命令。输入命令包括受控计算机的识别，并被发送到多个计算机。对应于识别的计算机执行输入命令。移动方向对应于计算机的指针方向。当输入装置向第一指针方向移动时，控制单元将位移值累积为第一累积位移值。当第一累积位移值大于阈值时，控制单元切换输入设备以控制另一个计算机。

5. 发明授权

US10727866B2 Keyboard apparatus 有权
公开(公告)号：US10727866B2
公开(公告)日：2020-07-28
申请号：US15954613
申请日：2018-04-17
申请人： Lite-On Technology Corporation
发明人： Er-Hao Chen , Wen-Tong Liu
IPC分类号： H03M11/00 , G06F3/023
摘要： A keyboard apparatus including a key module and a detection circuit is provided. The key module includes a plurality of keys, a plurality of scan lines, and a plurality of return lines. The scan lines and the return lines are crossed to each other and coupled to the keys respectively. The detection circuit is coupled to the return lines and configured to detect a current flowing through each of the return lines and indicate that a switch of each of the keys is in an on state or in an off state according to a value of the current.

6. 发明申请

US20190052285A1 KEYBOARD APPARATUS 审中-公开
公开(公告)号：US20190052285A1
公开(公告)日：2019-02-14
申请号：US15954613
申请日：2018-04-17
申请人： Lite-On Technology Corporation
发明人： Er-Hao Chen , Wen-Tong Liu
IPC分类号： H03M11/00 , G06F3/023
摘要： A keyboard apparatus including a key module and a detection circuit is provided. The key module includes a plurality of keys, a plurality of scan lines, and a plurality of return lines. The scan lines and the return lines are crossed to each other and coupled to the keys respectively. The detection circuit is coupled to the return lines and configured to detect a current flowing through each of the return lines and indicate that a switch of each of the keys is in an on state or in an off state according to a value of the current.

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