Patents by Inventor Li-Ta Ku

Li-Ta Ku 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).

  • Patent number: 7088808
    Abstract: A kit for converting an existing pay telephone to additionally provide computer network access includes an upper housing unit that latches to a lower housing of the existing telephone, and a network adapter unit which includes a network computer and a control module that selectively disables a hook switch connection to a payphone electronics module of the existing payphone. A coin scanner and an escrow unit of the existing payphone are connected through the control module to the payphone electronics unit. The network computer, in combination with the control module, provides a stand by mode, a pay phone mode, a data mode utilizing an optional data port socket for connection of an external data device, and a network mode. The kit provides for remote management of network functions as well as payphone functions over a single telephone line. Also disclosed is a complete network access pay telephone.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: August 8, 2006
    Inventor: Li-Ta Ku
  • Publication number: 20030103609
    Abstract: A kit for converting an existing pay telephone to additionally provide computer network access includes an upper housing unit that latches to a lower housing of the existing telephone, and a network adapter unit which includes a network computer and a control module that selectively disables a hook switch connection to a payphone electronics module of the existing payphone. A coin scanner and an escrow unit of the existing payphone are connected through the control module to the payphone electronics unit. The network computer, in combination with the control module, provides a stand by mode, a pay phone mode, a data mode utilizing an optional data port socket for connection of an external data device, and a network mode. The kit provides for remote management of network functions as well as payphone functions over a single telephone line. Also disclosed is a complete network access pay telephone.
    Type: Application
    Filed: October 29, 2002
    Publication date: June 5, 2003
    Inventor: Li-Ta Ku
  • Publication number: 20020176555
    Abstract: A kit for converting an existing pay telephone to additionally provide computer network access includes an upper housing unit that latches to a lower housing of the existing telephone, and a network adapter unit which includes a network computer and a control module that selectively disables a hook switch connection to a payphone electronics module of the existing payphone. A coin scanner and an escrow unit of the existing payphone are connected through the control module to the payphone electronics unit. The network computer, in combination with the control module, provides a stand by mode, a pay phone mode, and a network mode. Also disclosed are a complete network access pay telephone and a method for converting the existing payphone to add network access.
    Type: Application
    Filed: May 23, 2001
    Publication date: November 28, 2002
    Inventor: Li-Ta Ku
  • Patent number: 6480590
    Abstract: A kit for converting an existing pay telephone to additionally provide computer network access includes an upper housing unit that latches to a lower housing of the existing telephone, and a network adapter unit which includes a network computer and a control module that selectively disables a hook switch connection to a payphone electronics module of the existing payphone. A coin scanner and an escrow unit of the existing payphone are connected through the control module to the payphone electronics unit. The network computer, in combination with the control module, provides a stand by mode, a pay phone mode, and a network mode. Also disclosed are a complete network access pay telephone and a method for converting the existing payphone to add network access.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: November 12, 2002
    Inventor: Li-Ta Ku