Patents by Inventor Chih-Hung Chien
Chih-Hung Chien has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240379308Abstract: A backlight keyswitch includes a keyswitch body, a membrane circuit board disposed under the keyswitch body, a backlight module and an elastic body having a bridge structure, a central pillar, and a ring-shaped base disposed on the membrane circuit board. The keyswitch body has a keycap with a symbol. The backlight module is disposed under the membrane circuit board for emitting light to the symbol. The elastic body is disposed between the keycap and the membrane circuit board for returning the keycap to its original position. The bridge structure extends from the ring-shaped base toward the keycap to connect to the central pillar for supporting the central pillar, such that the central pillar is suspended relative to the membrane circuit board and abuts against the keycap. A projection of the central pillar on the keycap completely covers the symbol.Type: ApplicationFiled: April 23, 2024Publication date: November 14, 2024Applicant: Darfon Electronics Corp.Inventors: Chih-Hung Chien, Chih-Chung Yen
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Publication number: 20240361821Abstract: An electronic device may include a first wireless transceiver, a second wireless transceiver, and a processor. The processor may establish a first wireless communication with an external device via the first wireless transceiver. Further, processor may monitor a distance between the electronic device and the external device via the first wireless transceiver. In response to a determination that the monitored distance crosses a first threshold, the processor may establish a second wireless communication with the external device via the second wireless transceiver and monitor the distance between the electronic device and the external device via the second wireless transceiver. Furthermore, the processor may control the electronic device to operate in a first power state or a second power state based on the monitored distance via the first wireless transceiver or the second wireless transceiver.Type: ApplicationFiled: April 30, 2021Publication date: October 31, 2024Applicant: Hewlett-Packard Development Company, L.P.Inventors: Huai-Yung Yen, Isaac Lagnado, Chih-Hung Chien, Chien-Pai Lai, Hsiao-Chun Su
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Publication number: 20240347073Abstract: The present disclosure generally relates to a dual free layer two dimensional magnetic recording read head. The read head comprises a first lower shield, a first sensor disposed over the first lower shield, a first upper shield disposed over the first sensor, a read separation gap (RSG) disposed on the first upper shield, a second lower shield disposed on the RSG, a second sensor disposed over the second lower shield, and a second upper shield disposed over the second sensor. In one embodiment, the RSG comprises SiO2 and has a thickness of about 7 nm to about 14 nm. The SiO2 isolates the first sensor from the second sensor, and is a chemical mechanical processing (CMP) stop layer. In another embodiment, the RSG comprises a first sublayer comprising AlOx and a second sublayer comprising SiO2. The thicknesses of the first and second sublayers are based on an adjustable capacitance.Type: ApplicationFiled: July 31, 2023Publication date: October 17, 2024Applicant: Western Digital Technologies, Inc.Inventors: Fang CHEN, Chih-Ching HU, Yung-Hung WANG, Chen-Jung CHIEN, Ming MAO, Ming JIANG
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Patent number: 12106787Abstract: The present disclosure generally relate to a read head and methods of forming thereof. Upon forming a dual free layer (DFL) sensor and a rear hard bias (RHB) structure on a seed layer, a photoresist is deposited on the DFL read head and the RHB structure. A refill layer is deposited on the photoresist and the seed layer adjacent to the DFL sensor and the RHB structure. Portions of the refill layer disposed on one or more sidewalls of the photoresist are removed, and a SiOx cap layer is deposited on the refill layer and on the one or more sidewalls. The photoresist is removed, and the SiOx cap layer and top surfaces of the DFL sensor and the RHB structure are planarized to form a substantially flat topography. The SiOx cap layer acts as a stop layer for the refill layer, and remains in the finished read head.Type: GrantFiled: August 1, 2023Date of Patent: October 1, 2024Assignee: Western Digital Technologies, Inc.Inventors: Yung-Hung Wang, Chih-Ching Hu, Hongxue Liu, Guanxiong Li, Chen-Jung Chien, Ming Mao, Ming Jiang
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Publication number: 20240098652Abstract: In an example, a computing device may include a first radio device including a first antenna, a second radio device including a second antenna, and a basic input/output system (BIOS). The BIOS may establish a communication with the first and second radio devices. Further, the BIOS may receive first transmission status information associated with the first antenna from the first radio device and second transmission status information associated with the second antenna from the second radio device. Furthermore, the BIOS may detect a condition indicative of a combined transmit power of the first and second antennas exceeding a radio frequency exposure threshold based on the first and second transmission status information. The BIOS may instruct the first radio device, the second radio device, or both to perform a mitigation action to maintain the combined transmit power at or below the radio frequency exposure threshold.Type: ApplicationFiled: February 23, 2021Publication date: March 21, 2024Applicant: Hewlett-Packard Development Company, L.P.Inventors: Chih-Hung Chien, Chien-pai Lai, Chin-Hung Ma
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Patent number: 11721899Abstract: An example radio frequency (RF) front-end module is described, which may include a printed circuit board (PCB) including a ground plane, an RF integrated circuit (RFIC) including RF components mounted on the PCB, and an antenna array on the PCB. The antenna array may operate at a first resonant frequency in a wireless communication network. Further, the RF front-end module may include a slot defined in the ground plane to provide a second resonant frequency in the wireless communication network. The second resonant frequency is lower than the first resonant frequency.Type: GrantFiled: May 19, 2022Date of Patent: August 8, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Chin-Hung Ma, Chien-Pai Lai, Chih Hung Chien
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Publication number: 20230198141Abstract: An example antenna device includes an antenna array coupled to a motor. The antenna device also includes a controller to determine an antenna array direction weighting based on a weather condition and a time condition. The controller is also to cause the motor to rotate the antenna array based on the antenna array direction weighting.Type: ApplicationFiled: April 13, 2018Publication date: June 22, 2023Inventors: CHIH-HUNG CHIEN, CHIN-HUNG MA, MIN-HSU CHUANG
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Publication number: 20230171677Abstract: In some examples, the disclosure describes a device that includes a radio device, a transmitter, and a processor to: instruct the radio device to perform a radio scan of an area, compare the radio scan to a previous radio scan by the radio device, determine an acceleration of the device based on the comparison, and activate the transmitter in response to the acceleration being below a threshold acceleration.Type: ApplicationFiled: November 29, 2021Publication date: June 1, 2023Inventors: Isaac Lagnado, Steven Petit, Danny Farnyih Meng, Mats Anders Krister Luckman, Chih-Hung Chien, Christopher Charles Mohrman
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Publication number: 20230126424Abstract: In some examples, the disclosure describes a device that includes a radio device and a processor to: instruct the radio device to perform a radio scan of an area, compare the radio scan to a previous radio scan by the radio device, determine that the device has moved from a first location to a second location based on the comparison, and execute a global positioning system (GPS) request to identify the second location.Type: ApplicationFiled: October 26, 2021Publication date: April 27, 2023Inventors: Isaac Lagnado, Chih-Hung Chien, Danny Farnyih Meng, Steven Petit, Mats Anders Krister Luckman
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Patent number: 11625086Abstract: In some examples, the disclosure describes a device, comprising: a processor, and a non-transitory memory resource storing machine-readable instructions stored thereon that, when executed, cause the processor to: activate a dynamic power reduction mode for a device in response to identifying the device is in a first power state associated with a first account, and deactivate the dynamic power reduction mode for the device in response to identifying the device is in a second power state associated with a second account.Type: GrantFiled: June 29, 2021Date of Patent: April 11, 2023Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Isaac Lagnado, Chih-Hung Chien, Danny Farnyih Meng, Steven Petit
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Publication number: 20230077797Abstract: In some examples, the disclosure describes an electronic device with a display member, a base member rotatably coupled to the display member, the base member including an input component, a photovoltaic component coupled to an exterior surface of the display member to generate an amount of solar power, and an array of millimeter wave (mmWave) antennas to wirelessly transmit the amount of solar power to an external device.Type: ApplicationFiled: September 10, 2021Publication date: March 16, 2023Inventors: Chien-Pai Lai, Chih-Hung Chien, Chung-Chun Chen, Xinchang Chen
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Publication number: 20230078184Abstract: In some examples an electronic device includes a first wireless transceiver, a second wireless transceiver, and a processor. The processor is to transmit data via the first wireless transceiver, detect an indicator of a secure activity, and, in response to a detection of the indicator, stop transmission of the data via the first wireless transceiver and begin transmission of data of the secure activity via the second wireless transceiver.Type: ApplicationFiled: September 16, 2021Publication date: March 16, 2023Inventors: Xin-Chang CHEN, Chih-Hung CHIEN, Chien-Pai LAI, Chung-Chun CHEN
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Publication number: 20230007598Abstract: Approaches for controlling the transmit power of antennas of a communication device, are described. The communication device may include a first wireless communication module and a second wireless communication module. In an example, the first wireless communication module may be coupled to a first antenna.Type: ApplicationFiled: December 20, 2019Publication date: January 5, 2023Inventors: KUN-JUNG WU, HUNG-WEN CHENG, CHIH-HUNG CHIEN
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Publication number: 20220413587Abstract: In some examples, the disclosure describes a device, comprising: a processor, and a non-transitory memory resource storing machine-readable instructions stored thereon that, when executed, cause the processor to: activate a dynamic power reduction mode for a device in response to identifying the device is in a first power state associated with a first account, and deactivate the dynamic power reduction mode for the device in response to identifying the device is in a second power state associated with a second account.Type: ApplicationFiled: June 29, 2021Publication date: December 29, 2022Inventors: Isaac Lagnado, Chih-Hung Chien, Danny Farnyih Meng, Steven Petit
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Publication number: 20220349958Abstract: Techniques for determining a working state of an electronic component of an electronic device are described. The electronic component is coupled to the electronic device via a connection interface and a connector. The electronic device further comprises a contact detection assembly. The contact detection assembly detects a position of the connector relative to a connection interface. Based on the position of the connector relative to the connection interface, a state of connection between the connector and the connection interface is determined.Type: ApplicationFiled: May 29, 2019Publication date: November 3, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Chih-Hung Chien, Shih Huang Wu, Po Chao Chen
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Publication number: 20220289611Abstract: An assembly for pushing an electrode into a glass melting vessel can include a frame, a shaft, a pusher actuator, a contact mechanism, a master actuator, and a torque limiter. The contact mechanism can be attached to the shaft. The pusher actuator can be mounted to the frame and configured to cause translation of the shaft and the contact mechanism relative to the frame. The master actuator can be operatively connected to the pusher actuator such that operation of the master actuator causes operation of the pusher actuator. The torque limiter can be operatively connected between the master actuator and the pusher actuator, and can be configured to disengage when a rotational force on the master actuator exceeds a predetermined amount.Type: ApplicationFiled: September 8, 2020Publication date: September 15, 2022Inventors: Chih Hung Chien, Hyun-taek Han, JinSoo Kim, Yong-hyeon Park
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Publication number: 20220278454Abstract: An example radio frequency (RF) front-end module is described, which may include a printed circuit board (PCB) including a ground plane, an RF integrated circuit (RFIC) including RF components mounted on the PCB, and an antenna array on the PCB. The antenna array may operate at a first resonant frequency in a wireless communication network. Further, the RF front-end module may include a slot defined in the ground plane to provide a second resonant frequency in the wireless communication network. The second resonant frequency is lower than the first resonant frequency.Type: ApplicationFiled: May 19, 2022Publication date: September 1, 2022Inventors: Chin-Hung MA, Chien-Pai LAI, Chih Hung CHIEN
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Patent number: 11367957Abstract: An example radio frequency (RF) front-end module may include a printed circuit board (PCB) including a ground plane, an RF integrated circuit (RFIC) including RF components mounted on the PCB, and an antenna array on the PCB. The antenna array may operate at a first resonant frequency in a wireless communication network. Further, the RF front-end module may include a slot defined in the ground plane to provide a second resonant frequency in the wireless communication network. The second resonant frequency is lower than the first resonant frequency.Type: GrantFiled: June 7, 2018Date of Patent: June 21, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Chin-Hung Ma, Chien-Pai Lai, Chih Hung Chien
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Patent number: 11296399Abstract: A computer device including integrated communications antennas is disclosed. In the computer device, a first antenna is disposed above a display panel in a hinge-up portion of the laptop computer, and a second antenna is disposed below the display panel. A signal divider circuit is coupled to a radio module, wherein the signal divider circuit is configured to send a first frequency range to the first antenna via a flat printed circuit radio frequency (FPC RF) cable, and a second frequency range to the second antenna.Type: GrantFiled: July 13, 2017Date of Patent: April 5, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kuan-Jung Hung, Chih-Hung Chien, Min-Hsu Chuang
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Publication number: 20210280958Abstract: A computer device including integrated communications antennas is disclosed. In the computer device, a first antenna is disposed above a display panel in a hinge-up portion of the laptop computer, and a second antenna is disposed below the display panel. A signal divider circuit is coupled to a radio module, wherein the signal divider circuit is configured to send a first frequency range to the first antenna via a flat printed circuit radio frequency (FPC RF) cable, and a second frequency range to the second antenna.Type: ApplicationFiled: July 13, 2017Publication date: September 9, 2021Inventors: Kuan-Jung Hung, Chih-Hung Chien, Min-Hsu Chuang