Patents by Inventor Hay Yeung Cheung

Hay Yeung Cheung 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: 20190317523
    Abstract: A highway system including: a stretch of highway that includes one or more lanes, and each lane being divided into a plurality of fixed size slots; a plurality of vehicles traveling on the highway at a system specified speed; and a control system configured to control the plurality of vehicles by sending commands to the plurality of vehicles via a wireless communication system; wherein the control system is configured to divide time into timeslots based on the system specified speed and the size of the slots, such that each vehicle is assigned to occupy a slot during a timeslot; wherein each of the plurality of vehicles includes a processor configured to receive a command from the control system and to control its associated vehicle according to the command.
    Type: Application
    Filed: April 1, 2019
    Publication date: October 17, 2019
    Inventor: Hay Yeung Cheung
  • Patent number: 6671261
    Abstract: An apparatus and method of establishing a communication connection is provided. A one-way delay is not approximated by an average of a two-way delay calculation. Instead, a first time difference is determined based on a round-trip delay of a transmission over a packetized network and a circuit-switched network. A second time difference is also determined based on a round-trip delay of a transmission over the circuit-switched network. Then a delay value is calculated based on the two time differences.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: December 30, 2003
    Assignee: AT&T Corp.
    Inventor: Hay Yeung Cheung
  • Patent number: 6657957
    Abstract: A network call admission control system receives a call and determines a call characteristic requirement and a network characteristic parameter. The call is admitted to the network based in part on whether the call characteristic requirement is satisfied by the network characteristic parameter. As a result, a communications service provider can provide a high quality of service for completed calls or charge a discounted rate for completed calls not meeting a certain quality of service.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: December 2, 2003
    Assignee: AT&T Corp.
    Inventors: Hay Yeung Cheung, Louise E. Hosseini-Nasab, Daniel J. Yaniro, Jr.
  • Patent number: 6515964
    Abstract: A network call admission control system receives a call and determines a call characteristic requirement and a network characteristic parameter. The call is admitted to the network based in part on whether the call characteristic requirement is satisfied by the network characteristic parameter. As a result, a communications service provider can provide a high quality of service for completed calls or charge a discounted rate for completed calls not meeting a certain quality of service.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: February 4, 2003
    Assignee: AT&T Corp.
    Inventors: Hay Yeung Cheung, Louise E. Hosseini-Nasab, Daniel J. Yaniro, Jr.