Patents by Inventor Peter Chan

Peter Chan 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).

  • Publication number: 20180076811
    Abstract: A circuit for controlling a high-side power switch includes a level shifting circuit configured to receive an input signal for selectively configuring a logic command circuit to be in a set state, for providing a first output signal to the high-side power switch, and in a reset state, for providing a second output signal, different from the first output signal, to the high-side power switch. The circuit also includes a regulation circuit configured to detect an indicative signal indicative of the output signal provided to the high-side power switch and to change sensitivity of the level shifting circuit to the input signal, based on the indicative signal that is detected.
    Type: Application
    Filed: September 7, 2017
    Publication date: March 15, 2018
    Inventor: On Bon Peter CHAN
  • Publication number: 20170155238
    Abstract: A clamp for a spacer-damper includes a first jaw and a second jaw connected to the first jaw. The first jaw has a first clamping surface and a first aperture. The first aperture retains the fastener in an initial position and in a second position spaced latterly from said initial position. The second jaw has a second clamping surface and an open-ended second aperture. The second aperture receives the fastener in the second position. The first jaw may also include a keeper surface for receiving the fastener in an initial position, a keeper pocket for receiving the fastener in a second position and a keeper protrusion is positioned between the keeper surface and the keeper pocket.
    Type: Application
    Filed: February 14, 2017
    Publication date: June 1, 2017
    Inventors: Daniel David Dobrinski, Peter Chan
  • Patent number: 9570897
    Abstract: A clamp for a spacer-damper includes a first jaw and a second jaw connected to the first jaw. The first jaw has a first clamping surface and a first aperture. The first aperture retains the fastener in an initial position and in a second position spaced latterly from said initial position. The second jaw has a second clamping surface and an open-ended second aperture. The second aperture receives the fastener in the second position. The first jaw may also include a keeper surface for receiving the fastener in an initial position, a keeper pocket for receiving the fastener in a second position and a keeper protrusion is positioned between the keeper surface and the keeper pocket.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: February 14, 2017
    Assignee: Hubbell Incorporated
    Inventors: Daniel David Dobrinski, Peter Chan
  • Patent number: 9570216
    Abstract: A spacer assembly includes a first clamping body having first and second ends and first and second protrusions extending from the first and second ends, respectively. A second clamping body has third and fourth ends and third and fourth protrusions extending from the third and fourth ends, respectively. A first gripping member disposed between the first and third ends has first and second openings for receiving the first and third protrusions, respectively, such that the first and third protrusions pass completely through the first and second openings to contact a first conductor received by the first gripping member. A second gripping member disposed between the second and fourth ends has third and fourth openings for receiving the second and fourth protrusions, respectively, such that the second and fourth protrusions pass completely through the third and fourth openings to contact a second conductor received by the second gripping member.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: February 14, 2017
    Assignee: Hubbell Incorporated
    Inventor: Peter Chan
  • Publication number: 20170036424
    Abstract: A method of manufacturing a timber composite (7) is disclosed. The method comprises the steps of applying adhesive to one or more timber layers (23-226), applying pressure to the one or more timber layers, and heating the timber layers. The adhesive penetrates into the one or more timber layers and cures to form the timber composite (7). One or more spacers (332) may be positioned between the timber layers. The invention also related to timber composite (7) obtainable by such method and to decorative panels (1) comprising such timber composite (7) as a top layer.
    Type: Application
    Filed: March 20, 2015
    Publication date: February 9, 2017
    Inventor: Peter CHAN
  • Patent number: 9553085
    Abstract: A three terminal high voltage Darlington bipolar transistor power switching device includes two high voltage bipolar transistors, with collectors connected together serving as the collector terminal. The base of the first high voltage bipolar transistor serves as the base terminal. The emitter of the first high voltage bipolar transistor connects to the base of the second high voltage bipolar transistor (inner base), and the emitter of the second high voltage bipolar transistor serves as the emitter terminal. A diode has its anode connected to the inner base (emitter of the first high voltage bipolar transistor, or base of the second high voltage bipolar transistor), and its cathode connected to the base terminal. Similarly, a three terminal hybrid MOSFET/bipolar high voltage switching device can be formed by replacing the first high voltage bipolar transistor of the previous switching device by a high voltage MOSFET.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: January 24, 2017
    Assignee: Mosway Semiconductor Limited
    Inventors: Chiu-Sing Celement Tse, On-Bon Peter Chan, Chi-Keung Tang
  • Publication number: 20160366730
    Abstract: A direct drive LED lighting circuit includes a LED current control circuit with a power switching device; a current sensing device, an averaging circuit, and an error amplifier. A LED chain circuit is formed by connecting several LEDs in series with a capacitor connecting in parallel with the series of LEDs, with a current flowing in side as a positive terminal, and a current leaving terminal as a negative terminal. The LED chain circuit and the LED current control circuit are connecting in series and the whole circuit is connected between the positive and negative terminals of a rectified AC power source.
    Type: Application
    Filed: June 10, 2015
    Publication date: December 15, 2016
    Inventors: Chiu Sing Celement TSE, On Bon Peter CHAN, Chi Keung TANG
  • Publication number: 20160277421
    Abstract: Methods and systems for receiving sensitive information include receiving a request for entering sensitive information, the request received from a user interface rendered on a client device. The methods and systems rely upon nested iframes, each of which is hosted by a different server. An inner iframe is hosted by a server within a secure zone, such as a digital vault. A middle iframe is hosted within the secure zone and is invoked by an intermediate server. An outer iframe is hosted by a server that provides the user interface. The server that provides the user interface may be hosted by a cloud service provider, for example. Using the nested iframes and the network topology described in the present disclosure, users are able to exchange sensitive information with a server within the secure zone through a user interface provided outside the secure zone.
    Type: Application
    Filed: December 15, 2015
    Publication date: September 22, 2016
    Inventors: Maria Eugenia Tornos Lahoz, Anna Chu-Sumida, Nikunj Koolar, Peter Chan, Aditi Sinha Gundlapalli, Surajit Dutta, Binu Ramakrishnan, Venkatesh Dharmar
  • Patent number: 9399600
    Abstract: The present invention relates to a method of producing a sintered composite body comprising cubic boron nitride particles dispersed in a cemented carbide matrix by sintering a mixture comprising cubic boron nitride particles and a cemented carbide powder at a sintering temperature below 1350° C. without applying a pressure.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: July 26, 2016
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Jane Smith, Peter Chan, Michael Carpenter
  • Publication number: 20160079237
    Abstract: A three terminal high voltage Darlington bipolar transistor power switching device includes two high voltage bipolar transistors, with collectors connected together serving as the collector terminal. The base of the first high voltage bipolar transistor serves as the base terminal. The emitter of the first high voltage bipolar transistor connects to the base of the second high voltage bipolar transistor (inner base), and the emitter of the second high voltage bipolar transistor serves as the emitter terminal. A diode has its anode connected to the inner base (emitter of the first high voltage bipolar transistor, or base of the second high voltage bipolar transistor), and its cathode connected to the base terminal. Similarly, a three terminal hybrid MOSFET/bipolar high voltage switching device can be formed by replacing the first high voltage bipolar transistor of the previous switching device by a high voltage MOSFET.
    Type: Application
    Filed: November 23, 2015
    Publication date: March 17, 2016
    Inventors: Chiu-Sing Celement Tse, On-Bon Peter Chan, Chi-Keung Tang
  • Patent number: 9251372
    Abstract: Methods and systems for receiving sensitive information include receiving a request for entering sensitive information, the request received from a user interface rendered on a client device. The methods and systems rely upon nested iframes, each of which is hosted by a different server. An inner iframe is hosted by a server within a secure zone, such as a digital vault. A middle iframe is hosted within the secure zone and is invoked by an intermediate server. An outer iframe is hosted by a server that provides the user interface. The server that provides the user interface may be hosted by a cloud service provider, for example. Using the nested iframes and the network topology described in the present disclosure, users are able to exchange sensitive information with a server within the secure zone through a user interface provided outside the secure zone.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: February 2, 2016
    Assignee: Yahoo! Inc.
    Inventors: Maria Eugenia Tornos Lahoz, Anna Chu-Sumida, Nikunj Koolar, Peter Chan, Aditi Sinha Gundlapalli, Surajit Dutta, Binu Ramakrishnan, Venkatesh Dharmar
  • Patent number: 9245880
    Abstract: A three terminal high voltage Darlington bipolar transistor power switching device includes two high voltage bipolar transistors, with collectors connected together serving as the collector terminal. The base of the first high voltage bipolar transistor serves as the base terminal. The emitter of the first high voltage bipolar transistor connects to the base of the second high voltage bipolar transistor (inner base), and the emitter of the second high voltage bipolar transistor serves as the emitter terminal. A diode has its anode connected to the inner base (emitter of the first high voltage bipolar transistor, or base of the second high voltage bipolar transistor), and its cathode connected to the base terminal. Similarly, a three terminal hybrid MOSFET/bipolar high voltage switching device can be formed by replacing the first high voltage bipolar transistor of the previous switching device by a high voltage MOSFET.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: January 26, 2016
    Assignee: Mosway Semiconductor Limited
    Inventors: Chiu-Sing Celement Tse, On-Bon Peter Chan, Chi-Keung Tang
  • Publication number: 20150332816
    Abstract: A spacer assembly includes a first clamping body having first and second ends and first and second protrusions extending from the first and second ends, respectively. A second clamping body has third and fourth ends and third and fourth protrusions extending from the third and fourth ends, respectively. A first gripping member disposed between the first and third ends has first and second openings for receiving the first and third protrusions, respectively, such that the first and third protrusions pass completely through the first and second openings to contact a first conductor received by the first gripping member. A second gripping member disposed between the second and fourth ends has third and fourth openings for receiving the second and fourth protrusions, respectively, such that the second and fourth protrusions pass completely through the third and fourth openings to contact a second conductor received by the second gripping member.
    Type: Application
    Filed: July 27, 2015
    Publication date: November 19, 2015
    Inventor: Peter Chan
  • Patent number: 9154982
    Abstract: A system for collecting traffic information that includes at least one first mobile node; at least one second mobile node; at least one data collection node; and a central processing station. At least one packet is transmitted between the first mobile node and the second node. The data collection node includes a packet search analyzer to determine an identifier that identifiers the first mobile node or the second mobile node from the at least one packet. The central processing station is linked to the data collection node and communicates traffic information associated with the identifier.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: October 6, 2015
    Assignee: TRAFFICCAST INTERNATIONAL, INC.
    Inventors: Peter Chan, Roland Ho, Yunfeng Liu
  • Publication number: 20150229113
    Abstract: A clamp for a spacer-damper includes a first jaw and a second jaw connected to the first jaw. The first jaw has a first clamping surface and a first aperture. The first aperture retains the fastener in an initial position and in a second position spaced latterly from said initial position. The second jaw has a second clamping surface and an open-ended second aperture. The second aperture receives the fastener in the second position. The first jaw may also include a keeper surface for receiving the fastener in an initial position, a keeper pocket for receiving the fastener in a second position and a keeper protrusion is positioned between the keeper surface and the keeper pocket.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 13, 2015
    Applicant: Hubbell Incorporated
    Inventors: Daniel David Dobrinski, Peter Chan
  • Patent number: 9093202
    Abstract: A spacer assembly includes a first clamping body having first and second ends and first and second protrusions extending from the first and second ends, respectively. A second clamping body has third and fourth ends and third and fourth protrusions extending from the third and fourth ends, respectively. A first gripping member disposed between the first and third ends has first and second openings for receiving the first and third protrusions, respectively, such that the first and third protrusions pass completely through the first and second openings to contact a first conductor received by the first gripping member. A second gripping member disposed between the second and fourth ends has third and fourth openings for receiving the second and fourth protrusions, respectively, such that the second and fourth protrusions pass completely through the third and fourth openings to contact a second conductor received by the second gripping member.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: July 28, 2015
    Assignee: Hubbell Incorporated
    Inventor: Peter Chan
  • Publication number: 20150115315
    Abstract: A three terminal high voltage Darlington bipolar transistor power switching device includes two high voltage bipolar transistors, with collectors connected together serving as the collector terminal. The base of the first high voltage bipolar transistor serves as the base terminal. The emitter of the first high voltage bipolar transistor connects to the base of the second high voltage bipolar transistor (inner base), and the emitter of the second high voltage bipolar transistor serves as the emitter terminal. A diode has its anode connected to the inner base (emitter of the first high voltage bipolar transistor, or base of the second high voltage bipolar transistor), and its cathode connected to the base terminal. Similarly, a three terminal hybrid MOSFET/bipolar high voltage switching device can be formed by replacing the first high voltage bipolar transistor of the previous switching device by a high voltage MOSFET.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Applicant: Mosway Semiconductor Limited
    Inventors: Chiu-Sing Celement Tse, On-Bon Peter Chan, Chi-Keung Tang
  • Patent number: 9019591
    Abstract: It is an object of the present invention to provide a rare earth doped fiber whose transient response is suppressed and an optical amplifier for optical packet communication having a good characteristic even if there is little traffic. The above-mentioned problem is solved by an optical amplifier for optical packet communication comprising a first rare earth doped fiber (EDFA) having an active region whose diameter is between 3.4 ?m and 10 ?m, inclusive, an intermediate gain equalizing filter, and a second EDF, wherein the first EDFA is shorter than the second EDFA, and wherein the intermediate gain equalizing filter adjusts the intensity of each wavelength channel so as to equalize the light intensity of each wavelength channel having transmitted through the second EDF.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: April 28, 2015
    Assignees: National Institute of Information and communications Technology, Amonics Limited
    Inventors: Yoshinari Awaji, Hideaki Furukawa, Naoya Wada, Ray Man, Peter Chan, Eddie Kong
  • Patent number: 8804385
    Abstract: A switching converter IC without a built-in power switching device includes a first terminal serving as a power supply positive connection, a second terminal serving as a power supply return connection, a third terminal serving as the switch-driving connection for controlling the switching duty of an external bipolar or MOSFET power switching device and also serving as a conduit for detection of current drawn by the power switching device to thereby provide overcurrent protection. Feedback information is derived from voltage between the first and the second terminals.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: August 12, 2014
    Assignee: Mosway Semiconductor Limited
    Inventors: Chiu-Sing Celement Tse, On-Bon Peter Chan, Chik-Yam Lee, Chi-Keung Tang, Chi-Ken Kenny Lee
  • Publication number: 20140146575
    Abstract: A switching converter circuit includes bipolar devices in a Darlington configuration as a main switching element. Current drive is provided to the first base terminal to turn on the Darlington bipolar device. Base relaxation circuits to both the first and inner base terminals turn off the Darlington bipolar device.
    Type: Application
    Filed: October 17, 2013
    Publication date: May 29, 2014
    Applicant: Mosway Semiconductor Limited
    Inventors: Chiu-Sing Celement Tse, On-Bon Peter Chan