Patents by Inventor Tony Yuan

Tony Yuan 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).

  • Patent number: 11526212
    Abstract: Operation of a head-mounted wearable device is responsive to whether a state of the device is being worn (donned) or not worn (doffed) on the head. The device may operate in a first mode while donned and a second mode while doffed. A capacitive sensor device having an electrode positioned in a bridge of the device provides output data. The output data is processed to determine a baseline value. Later, acquired output data is compared to the baseline value to determine don/doff data indicative of whether the device is donned or doffed. Data from other sensors, may also be used in conjunction with the output data to improve accuracy of the don/doff data. For example, if the output data is above the baseline value and accelerometer data is indicative of motion greater than a motion threshold, the don/doff data may be designated as donned.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: December 13, 2022
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Jung Sik Yang, Pierre Djinki, Alfred Ying Fai Lui, Tony Yuan, Scott Michael Shill
  • Patent number: 9448575
    Abstract: An adjustable shunt regulator circuit has two current paths in parallel, with each current path having a bipolar transistor therein with the bases of the bipolar transistors of the two current paths connected in common. One of the current paths has a high impedance node. A MOS transistor has a gate connected to the high impedance node, and a source and a drain. A resistor divide circuit is connected in parallel to the source and drain of the MOS transistor and provides the output of the regulator circuit. The resistor divide circuit has a first resistor connected in series with a second resistor at a first node. A feedback connects the first node to the bases of the bipolar transistors connected in common of the two current paths.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: September 20, 2016
    Assignee: Microchip Technology Inc.
    Inventors: Tony Yuan Yen Mai, Isaac Terasuth Ko
  • Publication number: 20140009128
    Abstract: An adjustable shunt regulator circuit has two current paths in parallel, with each current path having a bipolar transistor therein with the bases of the bipolar transistors of the two current paths connected in common. One of the current paths has a high impedance node. A MOS transistor has a gate connected to the high impedance node, and a source and a drain. A resistor divide circuit is connected in parallel to the source and drain of the MOS transistor and provides the output of the regulator circuit. The resistor divide circuit has a first resistor connected in series with a second resistor at a first node. A feedback connects the first node to the bases of the bipolar transistors connected in common of the two current paths.
    Type: Application
    Filed: September 4, 2013
    Publication date: January 9, 2014
    Applicant: Supertex, Inc.
    Inventors: Tony Yuan Yen MAI, Isaac Terasuth Ko
  • Patent number: 8536855
    Abstract: An adjustable shunt regulator circuit has two current paths in parallel, with each current path having a bipolar transistor therein with the bases of the bipolar transistors of the two current paths connected in common. One of the current paths has a high impedance node. A MOS transistor has a gate connected to the high impedance node, and a source and a drain. A resistor divide circuit is connected in parallel to the source and drain of the MOS transistor and provides the output of the regulator circuit. The resistor divide circuit has a first resistor connected in series with a second resistor at a first node. A feedback connects the first node to the bases of the bipolar transistors connected in common of the two current paths.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: September 17, 2013
    Assignee: Supertex, Inc.
    Inventors: Tony Yuan Yen Mai, Isaac Terasuth Ko
  • Publication number: 20110285363
    Abstract: An adjustable shunt regulator circuit has two current paths in parallel, with each current path having a bipolar transistor therein with the bases of the bipolar transistors of the two current paths connected in common. One of the current paths has a high impedance node. A MOS transistor has a gate connected to the high impedance node, and a source and a drain. A resistor divide circuit is connected in parallel to the source and drain of the MOS transistor and provides the output of the regulator circuit. The resistor divide circuit has a first resistor connected in series with a second resistor at a first node. A feedback connects the first node to the bases of the bipolar transistors connected in common of the two current paths.
    Type: Application
    Filed: May 24, 2010
    Publication date: November 24, 2011
    Inventors: Tony Yuan Yen Mai, Isaac Terasuth Ko
  • Publication number: 20080273548
    Abstract: A method and apparatus for configuring service groups in a cable network is provided. A method may comprise identifying a primary downstream channel in a cable network and identifying a plurality of fiber nodes fed by the primary downstream channel. For each fiber node identified, the method may comprise identifying a set of downstream channels communicating with the fiber node. If duplicate sets are identified, duplicate sets of downstream channels may be eliminated and a downstream service group may be associated with each of the remaining sets of downstream channels. In an example embodiment, at least one Media Access Control (MAC) domain is automatically selected to correspond to the identified service groups.
    Type: Application
    Filed: May 3, 2007
    Publication date: November 6, 2008
    Inventors: Chrisanto de Jesus Leano, Yong Lu, Jin Zhang, Tung-Fai Chan, Tony Yuan-Kon Chang, Alon Shlomo Bernstein, John T. Chapman
  • Patent number: 6321976
    Abstract: A method of wire bonding for small clearance employs a conductive bump over the pad of a chip to prevent a capillary from colliding with the chip during three-dimensional package wiring process. The conventional constraint which limits the clearance to greater than 0.2 mm so as to find an appropriate capillary is overcome in this method.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: November 27, 2001
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Randy H. Y. Lo, Han-Ping Pu, Tony Yuan
  • Publication number: 20010042776
    Abstract: A method of wire bonding for small clearance is disclosed. The method employs a conductive bump over the pad of the chip to prevent the capillary from colliding with the chip during the three-dimensional package wiring process The conventional constraint which limits the clearance to greater than 0.2 mm so as to find the appropriate capillary is overcome in this method.
    Type: Application
    Filed: May 22, 2000
    Publication date: November 22, 2001
    Inventors: Randy H. Y. Lo, Han-Ping Pu, Tony Yuan