Patents by Inventor Albert Chow

Albert Chow 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: 20020130751
    Abstract: An auxiliary wiring structure for stabilizer which includes a ferrite core and a separator. The ferrite core is assembled by annular silicon sheets and has a slot formed at a selected location. The separator is clamped in the slot and enables wiring for a coil around the ferrite core be done in a well organized layer structure thereby to provide a stable current output for discharging lamp tube or other electric devices use.
    Type: Application
    Filed: March 15, 2001
    Publication date: September 19, 2002
    Inventor: Albert Chow
  • Patent number: 6445911
    Abstract: A method for providing a local cordless service comprises the steps of receiving subscriber neighborhood zone selection input so that a mobile telephone equipped subscriber may place or receive calls for a fixed rate, for example, per month without having to pay radio frequency air time charges any time they are located within their selected subscribed-to zones. If the subscribed-to zones are adjacent to one another and the mobile subscriber roams from one zone to another, the subscriber may continue their free call uninterrupted and without paying air time charges. However, when the subscriber roams outside their subscribed-to zones they may be switched from the present local cordless services to conventional personal communications services and pay air time charges. However for an active call, no air-time charges are incurred as the user transitions between the cellular/DPCS environment and the local cordless service environment.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: September 3, 2002
    Assignee: AT&T Corp
    Inventors: Albert Chow, Robert Raymond Miller, II, Jesse Eugene Russell, Spencer Wang, Wenchu Ying
  • Publication number: 20020058495
    Abstract: A method for providing a local cordless service comprises the steps of receiving subscriber neighborhood zone selection input so that a mobile telephone equipped subscriber may place or receive calls for a fixed rate, for example, per month without having to pay radio frequency air time charges any time they are located within their selected subscribed-to zones. If the subscribed-to zones are adjacent to one another and the mobile subscriber roams from one zone to another, the subscriber may continue their free call uninterrupted and without paying air time charges. However, when the subscriber roams outside their subscribed-to zones they may be switched from the present local cordless services to conventional personal communications services and pay air time charges. However for an active call, no air-time charges are incurred as the user transitions between the cellular/DPCS environment and the local cordless service environment.
    Type: Application
    Filed: December 30, 1998
    Publication date: May 16, 2002
    Inventors: ALBERT CHOW, ROBERT RAYMOND MILLER II, JESSE EUGENE RUSSELL, SPENCER WANG, WENCHU YING
  • Publication number: 20010041553
    Abstract: Systems and methods for providing intelligent wireless access systems are presented. A microcell cellular architecture is provided in which a digital switch and controller are provided in conjunction with a number of intelligent radio ports. Each of the intelligent radio ports provides at least one voice channel to both the microcell and to the traditional wireless macrocell. Calls placed within the microcell, however, do not access the traditional public macrocell. This architecture enables the microcell to be easily integrated into an existing wire-based system such that calls placed to the wire-based system are simultaneously forwarded to a cell phone (thereby ringing at both phones using a single phone number). If the call is answered by the cell phone within the confines of the microcell (i.e., via an intelligent radio port rather than a conventional wireless base station), the call is handled as a wire-based call and the type of phone used to answer the call is transparent to the caller.
    Type: Application
    Filed: February 18, 1997
    Publication date: November 15, 2001
    Inventors: JAMES JEN-CHEI CHANG, ALBERT CHOW
  • Patent number: 6243572
    Abstract: A method for providing a local cordless service comprises the steps of receiving subscriber neighborhood zone selection input so that a mobile telephone equipped subscriber may place or receive calls for a fixed rate, for example, per month without having to pay radio frequency air time charges any time they are located within their selected subscribed-to zones. If the subscribed-to zones are adjacent to one another and the mobile subscriber roams from one zone to another, the subscriber may continue their free call uninterrupted and without paying air time charges. However, when the subscriber roams outside their subscribed-to zones they may be switched from the present local cordless services to conventional personal communications services and pay air time charges. However for an active call, no air-time charges are incurred as the user transitions between the cellular/DPCS environment and the local cordless service environment.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: June 5, 2001
    Assignee: AT&T Corp.
    Inventors: Albert Chow, Jesse Eugene Russell, Spencer Wang, Wenchu Ying
  • Patent number: 5894478
    Abstract: The present invention encompasses an apparatus and method for supporting multiple wireless data communication networks between a wireless communications device and a fixed communications device or another wireless communications device. Two network elements compose the physical apparatus, a protocol converter and a router. Upon receiving packet data from a fixed communications device, a router will locate a destination wireless communications device. The router will then convert the packet data to a format usable by the wireless data network that the wireless communications device is currently using for wireless access. After conversion, the router will perform actual transmission of the packet data to the correct destination wireless network. Once the converted packet data is received by the wireless network base station, it will be transmitted via RF to the destination wireless communications device.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: April 13, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: Farhad Barzegar, Chi-Hwey Chang, Albert Chow, Gregory M. Durant, Danny K. Hsu, Xiaojian Huang, Jesse Eugene Russell, Robert Edward Schroeder