Patents by Inventor Jong-Yeong H. Hwang

Jong-Yeong H. Hwang 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).

  • Data set diagnostic system
    Patent number: 4498186
    Abstract: A voiceband data set network includes a control data set (10), a plurality of tributary data sets (4a, 4b . . . 4n) and a diagnostic control device (5). User-provided data is communicated between the control data set and the tributary data sets via a primary channel within a four-wire private telephone line (11, 12). Diagnostic and control information is communicated between the control data set and the tributaries via a secondary channel within the private line. Diagnostic and control information is communicated between the diagnostic control device and the control data set, with which it is co-located, via a control channel. Each data set includes a data set diagnostic unit (50), or DDU, via which it transmits and receives the diagnostic and control information.
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: February 5, 1985
    Assignee: AT&T Bell Laboratories
    Inventors: Jong-Yeong H. Hwang, Stevan J. Thayer, Bonnie A. Zimmer
  • Data set diagnostic system
    Patent number: 4398297
    Abstract: A voiceband data set network includes a control data set (10), a plurality of tributary data sets (4a, 4b . . . 4n) and a diagnostic control device (5). User-provided data is communicated between the control data set and the tributary data sets via a primary channel within a four-wire private telephone line (11, 12). Diagnostic and control information is communicated between the control data set and the tributaries via a secondary channel within the private line. Diagnostic and control information is communicated between the diagnostic control device and the control data set, with which it is co-located, via a control channel. Each data set includes a data set diagnostic unit (50), or DDU, via which it transmits and receives the diagnostic and control information.
    Type: Grant
    Filed: October 10, 1980
    Date of Patent: August 9, 1983
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Jong-Yeong H. Hwang, Stevan J. Thayer, Bonnie A. Zimmer