Patents by Inventor Dung Huynh
Dung Huynh 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: 8643378Abstract: Methods of performing electrostatic discharge testing on a transaction card are disclosed. A transaction card may be placed on an insulated surface. A grounding probe may be placed at a first location on the transaction card. A discharge probe may be charged to a known voltage level. The discharge probe may then be discharged at a second location on the transaction card. A discharge wave shape may be recorded from the ground probe, and one of a pass condition and a fail condition may be assigned based on at least the value of the known voltage level as compared to a reference voltage level. The first location and the second location may each be selected from a plurality of areas on the transaction card.Type: GrantFiled: January 24, 2011Date of Patent: February 4, 2014Assignee: Visa International Service AssociationInventors: Mustafa Top, Edward Kurtek, Johan Ras, Dung Huynh, Stan Weitz, Chris Stanley Nelson
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Publication number: 20110210723Abstract: Methods of performing electrostatic discharge testing on a transaction card are disclosed. A transaction card may be placed on an insulated surface. A grounding probe may be placed at a first location on the transaction card. A discharge probe may be charged to a known voltage level. The discharge probe may then be discharged at a second location on the transaction card. A discharge wave shape may be recorded from the ground probe, and one of a pass condition and a fail condition may be assigned based on at least the value of the known voltage level as compared to a reference voltage level. The first location and the second location may each be selected from a plurality of areas on the transaction card.Type: ApplicationFiled: January 24, 2011Publication date: September 1, 2011Applicant: Visa U.S.A. Inc.Inventors: Mustafa Cemal Top, Edward Kurtek, Johan Ras, Dung Huynh, Stan Weitz, Chris Stanley Nelson
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Patent number: 7902831Abstract: Methods of performing electrostatic discharge testing on a transaction card are disclosed. A transaction card may be placed on an insulated surface. A grounding probe may be placed at a first location on the transaction card. A discharge probe may be charged to a known voltage level. The discharge probe may then be discharged at a second location on the transaction card. A discharge wave shape may be recorded from the ground probe, and one of a pass condition and a fail condition may be assigned based on at least the value of the known voltage level as compared to a reference voltage level. The first location and the second location may each be selected from a plurality of areas on the transaction card.Type: GrantFiled: January 18, 2008Date of Patent: March 8, 2011Assignee: Visa U.S.A. Inc.Inventors: Mustafa Cemal Top, Edward Kurtek, Johan Ras, Dung Huynh, Stan Weitz, Chris Stanley Nelson
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Publication number: 20080174315Abstract: Methods of performing electrostatic discharge testing on a transaction card are disclosed. A transaction card may be placed on an insulated surface. A grounding probe may be placed at a first location on the transaction card. A discharge probe may be charged to a known voltage level. The discharge probe may then be discharged at a second location on the transaction card. A discharge wave shape may be recorded from the ground probe, and one of a pass condition and a fail condition may be assigned based on at least the value of the known voltage level as compared to a reference voltage level. The first location and the second location may each be selected from a plurality of areas on the transaction card.Type: ApplicationFiled: January 18, 2008Publication date: July 24, 2008Inventors: Mustafa Cemal Top, Edward Kurtek, Johan Ras, Dung Huynh, Stan Weitz, Chris Stanley Nelson
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Patent number: 6605788Abstract: An air-insulated high-voltage disconnector including a pivotally-mounted arm suitable for pivoting at one of its ends about a horizontal axis that is perpendicular to the axis &Dgr; of the arm, and also suitable for turning about its own axis &Dgr;, the free end of the arm carrying a contact part or “hammer” which, when the disconnector is in the closed position, co-operates with a jaw comprising a jaw support to which two facing rows of contact fingers are fixed, wherein the hammer is equipped with contact tabs co-operating with the contact fingers, each contact tab forming a wedge of angle &bgr;, which wedge acts, during disconnector closure, to meet the corresponding row of fingers with an angle of attack &agr;, said angle of attack &agr; being less than 90°.Type: GrantFiled: November 28, 2001Date of Patent: August 12, 2003Assignee: AlstomInventors: Daniel Demissy, Anh-Dung Huynh, Richard Marchand
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Patent number: 6570117Abstract: An air-insulated high-voltage disconnector includes a pivoting arm which pivots at one end about a horizontal axis perpendicular to the axis of the arm and turns about its axis. The free end of the arm carries a contact member referred to as the hammer cooperating, in the closed position of the disconnector, with a jaw including a jaw support to which are fixed two facing rows of contact fingers. The contact fingers are tubular and open at both ends.Type: GrantFiled: December 19, 2001Date of Patent: May 27, 2003Assignee: AlstomInventors: Daniel Demissy, Anh-Dung Huynh, Richard Marchand
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Publication number: 20020092741Abstract: An air-insulated high-voltage disconnector including a pivotally-mounted arm suitable for pivoting at one of its ends about a horizontal axis that is perpendicular to the axis &Dgr; of the arm, and also suitable for turning about its own axis &Dgr;, the free end of the arm carrying a contact part or “hammer” which, when the disconnector is in the closed position, co-operates with a jaw comprising a jaw support to which two facing rows of contact fingers are fixed, wherein the hammer is equipped with contact tabs co-operating with the contact fingers, each contact tab forming a wedge of angle &bgr;, which wedge acts, during disconnector closure, to meet the corresponding row of fingers with an angle of attack &agr;, said angle of attack &agr; being less than 90°.Type: ApplicationFiled: November 28, 2001Publication date: July 18, 2002Applicant: ALSTOMInventors: Daniel Demissy, Anh-Dung Huynh, Richard Marchand
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Publication number: 20020092828Abstract: An air-insulated high-voltage disconnector includes a pivoting arm which pivots at one end about a horizontal axis perpendicular to the axis of the arm and turns about its axis. The free end of the arm carries a contact member referred to as the hammer cooperating, in the closed position of the disconnector, with a jaw including a jaw support to which are fixed two facing rows of contact fingers. The contact fingers are tubular and open at both ends.Type: ApplicationFiled: December 19, 2001Publication date: July 18, 2002Applicant: ALSTOMInventors: Daniel Demissy, Anh-Dung Huynh, Richard Marchand
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Patent number: 6240184Abstract: A system, method, and data structure provide for securely synchronizing passwords and/or other information between systems. The password-related information is stored in the systems in a secure manner, and a user or some other, external agent participates actively in the transmission of a new password between systems. A password update file is communicated or shared between systems to synchronize passwords.Type: GrantFiled: September 2, 1998Date of Patent: May 29, 2001Assignee: RSA Security Inc.Inventors: Dung Huynh, Matthew Robshaw, Ari Juels, Burton Kaliski, Jr.
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Patent number: 5359167Abstract: A whip usable in a high tension section switch, in particular a vertically-opening switch, the whip comprising a flexible metal rod whose section is a truncated circle whose area diminishes progressively from the base of the whip to its tip.Type: GrantFiled: May 7, 1993Date of Patent: October 25, 1994Assignee: GEC Alsthom Energie Inc.Inventors: Daniel Demissy, Jean-Guy Chevaliere, Hadj Alidou, Anh Dung Huynh