Patents Assigned to Siemens Components
  • Data access arrangement
    Patent number: 5717752
    Abstract: A digital access arrangement, coupled between a data terminal equipment having a transmit line and a receive line and tip and ring lines of a network, having a circuit that provides polarity check, hook/switch control, and data modulation functionality. The circuit includes a controller and six controllable switches, each having a conducting state and a blocking state.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: February 10, 1998
    Assignee: Siemens Components
    Inventor: David Whitney