Patents by Inventor Cheng W. Kek

Cheng W. Kek 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: 6052454
    Abstract: A telephone apparatus for providing service to a plurality of telephones located at a particular facility, and with the capability of controlling the connection of calls to such telephones as well as recording selected phone conversations. In particular, control of call connection is accomplisued with access control data that is phone-related and PIN number-related. Phone-related data activates the telephone based on, for example, its location in the facility, time of day and day of the week. PIN number-related data allows access to the phone depending on data associated with the caller to whom a unique PIN number has been assigned. The recording of conversations is controllable based on a comparison of call-related data, particular to the call being attempted, with stored recording control data that may also be phone-related and/or PIN number-related.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: April 18, 2000
    Assignee: Global Tel*Link Corp.
    Inventors: Cheng W. Kek, Kenneth A. Salter, Daniel W. Cravey