Patents by Inventor Yuan-Jen Chang
Yuan-Jen Chang 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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Patent number: 11963296Abstract: A cavity printed circuit board (PCB) that allows electronic components with different dimensions disposed therein is provided. A cavity with a desired dimension is formed in the cavity PCB where the electronic components may be mounted and soldered therein. The cavity formed in the cavity PCB may also provide additional flexibility regarding placements and locations where the electronic components may be disposed in the 3D vertical stacking and packaging of the IC devices so as to provide alternatives of using different types of wiring or interconnection structures or fine-pitch connection lines among the electronic components.Type: GrantFiled: December 15, 2021Date of Patent: April 16, 2024Assignee: Google LLCInventors: Yuan Jen Chang, Ronald Trinidad
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Publication number: 20240103593Abstract: A power adapter can include a power input node, a communication channel node, an output node, a low-pass filter, a modulator, and a high-pass filter. The low-pass filter can include a low-pass input node coupled to the power input node and a low-pass output node coupled to the output node. The modulator can include a modulator input node coupled to the communication channel node and a modulator output node. The modulator can be configured to modulate data received from the communication channel node onto a signal having a higher frequency than a data-carrying signal carrying the data received from the communication channel node and output the modulated data to a high-pass input node of a high-pass filter. The high-pass filter can include the high-pass input node coupled to the modulator output node and a high-pass output node coupled to the output node.Type: ApplicationFiled: March 3, 2021Publication date: March 28, 2024Inventors: Chia-Hang Yeh, Yuan-Jen Chang
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Publication number: 20230376434Abstract: The present disclosure provides systems and methods for activating a general purpose input/out (“GPIO”) pin. The system may include a control device, agency device, and a controlled device. The agency device may be part of the controlled device or it may be a separate device. The agency device may receive a communication signal transmitted from the control device. The agency device may count the number of pulses during a certain period of time to determine a GPIO pin to trigger on the controlled device.Type: ApplicationFiled: August 26, 2020Publication date: November 23, 2023Applicant: Google LLCInventors: Yuan Jen Chang, Shih-hsien Yang
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Publication number: 20230123283Abstract: The present invention provides a machining fluid comprising a first phase fluid and a second phase fluid pressurized to be dissolved in the first phase fluid. The present invention further provides a machining device comprising an injecting head having a nozzle and a flow channel communicating with the nozzle for guiding the machining fluid to the nozzle injecting the machining fluid to an object. Alternatively, the present invention further provides a machining device comprising a light source for generating a laser beam and an injecting head having a nozzle and a flow channel communicating with the nozzle. The flow channel guides a machining fluid having a first phase fluid and a second phase fluid such that the machining fluid is injected to an object by the nozzle. The injecting head also receives the laser beam and guides the laser beam to the object through the nozzle.Type: ApplicationFiled: October 12, 2022Publication date: April 20, 2023Inventors: Chia-Lung Kuo, Yuan-Jen Chang, Zong-Lun Wu
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Publication number: 20230114118Abstract: A cavity printed circuit board (PCB) that allows electronic components with different dimensions disposed therein is provided. A cavity with a desired dimension is formed in the cavity PCB where the electronic components may be mounted and soldered therein. The cavity formed in the cavity PCB may also provide additional flexibility regarding placements and locations where the electronic components may be disposed in the 3D vertical stacking and packaging of the IC devices so as to provide alternatives of using different types of wiring or interconnection structures or fine-pitch connection lines among the electronic components.Type: ApplicationFiled: December 15, 2021Publication date: April 13, 2023Inventors: Yuan Jen Chang, Ronald Trinidad
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Publication number: 20220173768Abstract: The technology provides for a power line communication system capable of providing data from a first device to a second device over a power line. The first device may include a set of contacts and a second device may include a second set of contacts. The second set of contacts may be adapted to electronically engage with the first set of contacts of the first device to form at least a power and ground lines connection. Circuitry within the first device and the second device may include circuitry for providing data over the power line connection between the first device and the second device. The circuitry may comprise a power line, a ground line, a transmitter line carrying data signals, a capacitor coupling the transmitter line to the power line at a connection point, and a receiver comprising two field effect transistors.Type: ApplicationFiled: June 29, 2020Publication date: June 2, 2022Inventors: Yuan Jen Chang, Shih-hsien Yang
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Patent number: 10157114Abstract: Systems for testing a computer keyboard are provided. In some implementations, the system comprises: a plurality of elongate members, each having a first end and a second end; a support structure having a first surface, a second surface, and a plurality of apertures that pass through the support structure from the first surface to the second surface such that the plurality of apertures corresponds to a layout of keys of a computer keyboard, wherein a longitudinal axis of each of the plurality of elongate members is aligned with the plurality of apertures; and a roller that moves under a subset of apertures during operation of the system and contacts the elongate member thereby causing the elongate member to be displaced by at least a first amount such that the second end of the elongate member protrudes at least a second amount from the surface of the support structure.Type: GrantFiled: July 7, 2016Date of Patent: December 18, 2018Assignee: Google LLCInventors: Yuan-Jen Chang, Chia Hang Yeh
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Patent number: 9591348Abstract: In accordance with some implementations of the disclosed subject matter, a method for controlling a High-Definition Multimedia Interface (HDMI) port is provided, the method comprising: generating a first voltage at a first pin of the HDMI port; detecting a second voltage at the first pin of the HDMI port; detecting a third voltage at a second pin of the HDMI port; comparing the second voltage to the first voltage; comparing the second voltage to the third voltage; determining based on the comparison of the second voltage to the third voltage that the HDMI port of the device is connected to an HDMI source; causing the HDMI port to act as an HDMI sink; determining based on the comparison of the second voltage to the first voltage that the HDMI port of the device is connected to an HDMI sink; and causing the HDMI port to act as an HDMI source.Type: GrantFiled: April 15, 2016Date of Patent: March 7, 2017Assignee: Google Inc.Inventors: Chia Hang Yeh, Yuan-Jen Chang
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Publication number: 20160320268Abstract: Systems for testing a computer keyboard are provided. In some implementations, the system comprises: a plurality of elongate members, each having a first end and a second end; a support structure having a first surface, a second surface, and a plurality of apertures that pass through the support structure from the first surface to the second surface such that the plurality of apertures corresponds to a layout of keys of a computer keyboard, wherein a longitudinal axis of each of the plurality of elongate members is aligned with the plurality of apertures; and a roller that moves under a subset of apertures during operation of the system and contacts the elongate member thereby causing the elongate member to be displaced by at least a first amount such that the second end of the elongate member protrudes at least a second amount from the surface of the support structure.Type: ApplicationFiled: July 7, 2016Publication date: November 3, 2016Inventors: Yuan-Jen Chang, Chia Hang Yeh
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Patent number: 9417980Abstract: Systems for testing a computer keyboard are provided. In some implementations, the system comprises: a plurality of elongate members, each having a first end and a second end; a support structure having a first surface, a second surface, and a plurality of apertures that pass through the support structure from the first surface to the second surface such that the plurality of apertures corresponds to a layout of keys of a computer keyboard, wherein a longitudinal axis of each of the plurality of elongate members is aligned with the plurality of apertures; and a roller that moves under a subset of apertures during operation of the system and contacts the elongate member thereby causing the elongate member to be displaced by at least a first amount such that the second end of the elongate member protrudes at least a second amount from the surface of the support structure.Type: GrantFiled: May 21, 2014Date of Patent: August 16, 2016Assignee: Google Inc.Inventors: Yuan-Jen Chang, Chia Hang Yeh
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Publication number: 20160234541Abstract: In accordance with some implementations of the disclosed subject matter, a method for controlling a High-Definition Multimedia Interface (HDMI) port is provided, the method comprising: generating a first voltage at a first pin of the HDMI port; detecting a second voltage at the first pin of the HDMI port; detecting a third voltage at a second pin of the HDMI port; comparing the second voltage to the first voltage; comparing the second voltage to the third voltage; determining based on the comparison of the second voltage to the third voltage that the HDMI port of the device is connected to an HDMI source; causing the HDMI port to act as an HDMI sink; determining based on the comparison of the second voltage to the first voltage that the HDMI port of the device is connected to an HDMI sink; and causing the HDMI port to act as an HDMI source.Type: ApplicationFiled: April 15, 2016Publication date: August 11, 2016Inventors: Chia Hang Yeh, Yuan-Jen Chang
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Publication number: 20160175375Abstract: Preparation of an orally administrable pharmaceutical composition containing traditional Chinese medicine for hematologic diseases is disclosed. The pharmaceutical composition is for immunotherapy and is made from natural, non-toxic medicinal materials through extraction and other preparing processes. The pharmaceutical composition is helpful to prevent, mitigate and cure cancers.Type: ApplicationFiled: December 17, 2014Publication date: June 23, 2016Inventor: YUAN-JEN CHANG
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Patent number: 9369753Abstract: In accordance with some implementations of the disclosed subject matter, a method for controlling a High-Definition Multimedia Interface (HDMI) port is provided, the method comprising: generating a first voltage at a first pin of the HDMI port; detecting a second voltage at the first pin of the HDMI port; detecting a third voltage at a second pin of the HDMI port; comparing the second voltage to the first voltage; comparing the second voltage to the third voltage; determining based on the comparison of the second voltage to the third voltage that the HDMI port of the device is connected to an HDMI source; causing the HDMI port to act as an HDMI sink; determining based on the comparison of the second voltage to the first voltage that the HDMI port of the device is connected to an HDMI sink; and causing the HDMI port to act as an HDMI source.Type: GrantFiled: November 6, 2015Date of Patent: June 14, 2016Assignee: Google Inc.Inventors: Chia Hang Yeh, Yuan-Jen Chang
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Publication number: 20160066016Abstract: In accordance with some implementations of the disclosed subject matter, a method for controlling a High-Definition Multimedia Interface (HDMI) port is provided, the method comprising: generating a first voltage at a first pin of the HDMI port; detecting a second voltage at the first pin of the HDMI port; detecting a third voltage at a second pin of the HDMI port; comparing the second voltage to the first voltage; comparing the second voltage to the third voltage; determining based on the comparison of the second voltage to the third voltage that the HDMI port of the device is connected to an HDMI source; causing the HDMI port to act as an HDMI sink; determining based on the comparison of the second voltage to the first voltage that the HDMI port of the device is connected to an HDMI sink; and causing the HDMI port to act as an HDMI source.Type: ApplicationFiled: November 6, 2015Publication date: March 3, 2016Inventors: Chia Hang Yeh, Yuan-Jen Chang
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Patent number: 9274564Abstract: An electronic device may include a housing enclosing electronic components, the housing including an aperture on a top portion of the housing, a keyboard within the aperture of the housing, the keyboard comprising multiple keys, and an antenna extending around a subset of the multiple keys.Type: GrantFiled: December 27, 2013Date of Patent: March 1, 2016Assignee: Google Inc.Inventors: Yuan-Jen Chang, Ajay Chandra Venkata Gummalla
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Patent number: 9215491Abstract: In accordance with some implementations of the disclosed subject matter, a method for controlling a High-Definition Multimedia Interface (HDMI) port is provided, the method comprising: generating a first voltage at a first pin of the HDMI port; detecting a second voltage at the first pin of the HDMI port; detecting a third voltage at a second pin of the HDMI port; comparing the second voltage to the first voltage; comparing the second voltage to the third voltage; determining based on the comparison of the second voltage to the third voltage that the HDMI port of the device is connected to an HDMI source; causing the HDMI port to act as an HDMI sink; determining based on the comparison of the second voltage to the first voltage that the HDMI port of the device is connected to an HDMI sink; and causing the HDMI port to act as an HDMI source.Type: GrantFiled: July 10, 2014Date of Patent: December 15, 2015Assignee: Google Inc.Inventors: Chia Hang Yeh, Yuan-Jen Chang
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Publication number: 20150146357Abstract: An electronic device may include a housing enclosing electronic components, the housing including an aperture on a top portion of the housing, a keyboard within the aperture of the housing, the keyboard comprising multiple keys, and an antenna extending around a subset of the multiple keys.Type: ApplicationFiled: December 27, 2013Publication date: May 28, 2015Applicant: GOOGLE INC.Inventors: Yuan-Jen Chang, Ajay Chandra Venkata Gummalla
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Patent number: 7178991Abstract: An optical transceiver module includes a plurality of optical signal transmission/receiving units to receive and transmit optical signals, and is fastened to a base by a fastening unit. Each optical signal transmission/receiving unit includes a heat sink to promote heat dissipation efficiency. An electromagnetic shielding part covers the optical receiver to isolate from electromagnetic interference. A guiding plate is provided in the module to comb terminals of the module when the low-density wavelength-multiplex transceiver module is to be placed in an electronic device.Type: GrantFiled: November 12, 2003Date of Patent: February 20, 2007Assignee: Industrial Technology Research InstituteInventors: Chia-Hung Chiu, Cheng-Da Shaw, Yi-Ming Chen, Chiung-Hung Wang, Yuan-Jen Chang, Chi-Lun Hsu, Ming-Fa Huang, Chih-Hao Hsu
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Publication number: 20050089281Abstract: An optical transceiver module includes a plurality of optical signal transmission/receiving units to receive and transmit optical signals, and is fastened to a base by a fastening unit. Each optical signal transmission/receiving unit includes a heat sink to promote heat dissipation efficiency. An electromagnetic shielding part covers the optical receiver to isolate from electromagnetic interference. A guiding plate is provided in the module to comb terminals of the module when the low-density wavelength-multiplex transceiver module is to be placed in an electronic device.Type: ApplicationFiled: November 12, 2003Publication date: April 28, 2005Inventors: Chia-Hung Chiu, Cheng-Da Shaw, Yi-Ming Chen, Chiung-Hung Wang, Yuan-Jen Chang, Chi-Lun Hsu, Ming-Fa Huang, Chih-Hao Hsu
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Patent number: 6523959Abstract: A cooling device of liquid crystal projector is utilized to cool a liquid crystal panel and polarizer of an optical system in a liquid crystal projector; when the optical system of the present invention is heated by a light projection, coolant will carry the heat of the liquid crystal panel and polarizer of the optical system away, and a flow guiding device is used to lead the coolant to flow so as to cool the high temperature coolant by means of a heat dissipating device, then the heat is dissipated to outside environment thereby. After the temperature of the coolant is lowered, it is led to flow through the liquid crystal panel and polarizer again by means of the flow-guiding device, so as to repeat a cooling cycle.Type: GrantFiled: December 14, 2001Date of Patent: February 25, 2003Assignee: Industrial Technology Research InstituteInventors: Wen-Tsung Lee, Yuan-Jen Chang