Patents Assigned to Slab DSP Limited
  • Audio jack with plug or head set identification circuit
    Patent number: 6988905
    Abstract: A jack (90) typically mounted in an aircraft seat is adapted for use with a variety of headset types. A jack has sockets (92, 93, 94) accepting any of several different types of plugs associated with different types of noise cancellation headsets or aviation industry headsets including one, two, or three pin types. The jack includes sensing components to correctly detect from the number of pins inserted, and the impedance and/or voltages sensed on those pins, the type of headset being used.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: January 24, 2006
    Assignee: Slab DSP Limited
    Inventors: John Frederick Corey, Mark Donaldson