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).
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Publication number: 20180076811Abstract: 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: ApplicationFiled: September 7, 2017Publication date: March 15, 2018Inventor: On Bon Peter CHAN
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Publication number: 20170155238Abstract: 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: ApplicationFiled: February 14, 2017Publication date: June 1, 2017Inventors: Daniel David Dobrinski, Peter Chan
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Patent number: 9570897Abstract: 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: GrantFiled: February 11, 2014Date of Patent: February 14, 2017Assignee: Hubbell IncorporatedInventors: Daniel David Dobrinski, Peter Chan
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Patent number: 9570216Abstract: 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: GrantFiled: July 27, 2015Date of Patent: February 14, 2017Assignee: Hubbell IncorporatedInventor: Peter Chan
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Publication number: 20170036424Abstract: 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: ApplicationFiled: March 20, 2015Publication date: February 9, 2017Inventor: Peter CHAN
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Patent number: 9553085Abstract: 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: GrantFiled: November 23, 2015Date of Patent: January 24, 2017Assignee: Mosway Semiconductor LimitedInventors: Chiu-Sing Celement Tse, On-Bon Peter Chan, Chi-Keung Tang
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Publication number: 20160366730Abstract: 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: ApplicationFiled: June 10, 2015Publication date: December 15, 2016Inventors: Chiu Sing Celement TSE, On Bon Peter CHAN, Chi Keung TANG
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Publication number: 20160277421Abstract: 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: ApplicationFiled: December 15, 2015Publication date: September 22, 2016Inventors: Maria Eugenia Tornos Lahoz, Anna Chu-Sumida, Nikunj Koolar, Peter Chan, Aditi Sinha Gundlapalli, Surajit Dutta, Binu Ramakrishnan, Venkatesh Dharmar
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Patent number: 9399600Abstract: 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: GrantFiled: September 23, 2011Date of Patent: July 26, 2016Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Jane Smith, Peter Chan, Michael Carpenter
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Publication number: 20160079237Abstract: 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: ApplicationFiled: November 23, 2015Publication date: March 17, 2016Inventors: Chiu-Sing Celement Tse, On-Bon Peter Chan, Chi-Keung Tang
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Patent number: 9251372Abstract: 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: GrantFiled: July 8, 2015Date of Patent: February 2, 2016Assignee: Yahoo! Inc.Inventors: Maria Eugenia Tornos Lahoz, Anna Chu-Sumida, Nikunj Koolar, Peter Chan, Aditi Sinha Gundlapalli, Surajit Dutta, Binu Ramakrishnan, Venkatesh Dharmar
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Patent number: 9245880Abstract: 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: GrantFiled: October 28, 2013Date of Patent: January 26, 2016Assignee: Mosway Semiconductor LimitedInventors: Chiu-Sing Celement Tse, On-Bon Peter Chan, Chi-Keung Tang
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Publication number: 20150332816Abstract: 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: ApplicationFiled: July 27, 2015Publication date: November 19, 2015Inventor: Peter Chan
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Patent number: 9154982Abstract: 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: GrantFiled: August 13, 2012Date of Patent: October 6, 2015Assignee: TRAFFICCAST INTERNATIONAL, INC.Inventors: Peter Chan, Roland Ho, Yunfeng Liu
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Publication number: 20150229113Abstract: 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: ApplicationFiled: February 11, 2014Publication date: August 13, 2015Applicant: Hubbell IncorporatedInventors: Daniel David Dobrinski, Peter Chan
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Patent number: 9093202Abstract: 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: GrantFiled: February 20, 2013Date of Patent: July 28, 2015Assignee: Hubbell IncorporatedInventor: Peter Chan
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Publication number: 20150115315Abstract: 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: ApplicationFiled: October 28, 2013Publication date: April 30, 2015Applicant: Mosway Semiconductor LimitedInventors: Chiu-Sing Celement Tse, On-Bon Peter Chan, Chi-Keung Tang
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Patent number: 9019591Abstract: 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: GrantFiled: March 12, 2008Date of Patent: April 28, 2015Assignees: National Institute of Information and communications Technology, Amonics LimitedInventors: Yoshinari Awaji, Hideaki Furukawa, Naoya Wada, Ray Man, Peter Chan, Eddie Kong
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Patent number: 8804385Abstract: 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: GrantFiled: August 8, 2011Date of Patent: August 12, 2014Assignee: Mosway Semiconductor LimitedInventors: Chiu-Sing Celement Tse, On-Bon Peter Chan, Chik-Yam Lee, Chi-Keung Tang, Chi-Ken Kenny Lee
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Publication number: 20140146575Abstract: 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: ApplicationFiled: October 17, 2013Publication date: May 29, 2014Applicant: Mosway Semiconductor LimitedInventors: Chiu-Sing Celement Tse, On-Bon Peter Chan