Apparatus for and method of operating an automatic log on/log of

Details Apparatus for and method of operating an automatic log on/log of Apparatus for and method of operating an automatic log on/log of

1993-05-11

1996-01-30

Dwyer, James L.

Telephonic communications

Substation or terminal circuitry

Amplifying

379365, 379214, H04M 100

Patent

active

054886570

ABSTRACT:
Existing automatic log on/log off systems in telephone systems determine whether or not a workstation is occupied, and that calls can be directed to that workstation, by determining whether or not the amplifier that provides the interface between the telephone system and the occupant's headset is plugged into the workstation. Recent headsets have a connector in the cord between the headset and the amplifier. This enables the occupant to leave the workstation without unplugging the amplifier, which defeats sensing mechanism of the existing automatic log on/log off system. An amplifier according to the invention replaces the existing amplifier and includes a detector that determines whether the headset is connected to the amplifier, and an activator that activates the existing automatic log on/log off system in the telephone system. In the preferred embodiment, the detector senses the current drawn by the electret microphone in the headset, and the activator activates both current-sensing and voltage/resistance-sensing automatic log on/log off systems.

REFERENCES:
patent: 3571518 (1971-03-01), Chipman et al.
patent: 3851111 (1974-11-01), Young
patent: 4048452 (1977-09-01), Oshring et al.
patent: 4400587 (1983-08-01), Taylor et al.
patent: 4449017 (1984-05-01), Burke et al.
patent: 4499337 (1985-02-01), Elbaek
patent: 4562310 (1985-12-01), Watters et al.
patent: 4620066 (1986-10-01), Bushnell et al.
patent: 4672663 (1987-06-01), Tomasi
patent: 5062103 (1991-10-01), Davidson et al.
patent: 5073890 (1991-12-01), Danielson
patent: 5226077 (1993-07-01), Lynn et al.

Affiliated with

Also associated with

Rating

Apparatus for and method of operating an automatic log on/log of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for and method of operating an automatic log on/log of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for and method of operating an automatic log on/log of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-161403