Audio jack with plug or head set identification circuit

Details Audio jack with plug or head set identification circuit Audio jack with plug or head set identification circuit

2006-01-24

2006-01-24

Abrams, Neil (Department: 2839)

Electrical connectors

Alternatively connected

Coupling part

C439S669000, C439S955000, C381S074000

Reexamination Certificate

active

06988905

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. With this identification, appropriate connections to the audio source as well as to noise cancellation circuitry may be made to enable the headset to function correctly

REFERENCES:
patent: 1157026 (1915-10-01), Meschenmoser
patent: 4433209 (1984-02-01), Kurosawa et al.
patent: 5341254 (1994-08-01), Ueno
patent: 5642424 (1997-06-01), Masaki
patent: 5655025 (1997-08-01), Kim et al.
patent: 6069960 (2000-05-01), Mizukami et al.
patent: 6109797 (2000-08-01), Nagura et al.
patent: 6594366 (2003-07-01), Adams

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