Headset for hands-free wireless telephone

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

379430, 455569, H04Q 732

Patent

active

057941637

ABSTRACT:
A wireless telephone using an RF receiver unit and an RF transmitter unit and having a removable headset, the telephone and headset particularly suitable for applications where the RF transmitter unit is switched on and off at a frequency less than twenty kilohertz. The wireless telephone is coupled to the headset using a conventional stereo plug and jack. A headset detect logic signal is generated from the speaker audio line. A microphone current detect logic signal is generated from the microphone audio line. A digital logic circuit, preferably including a microprocessor, monitors the headset detect logic signal and microphone current detect logic signals and generates a programmed response to the headset detect logic signal. The programmed response reduces audible noise to the headset user, generates a ringing signal on the speaker audio line when an incoming call is received and allows the headset user to answer incoming calls, and place outgoing calls while touching only the headset. The wireless telephone and headset include circuitry to reject RF noise and circuitry to attenuate RF noise passed into the wireless telephone by a long multi-conductor wire coupling the headset to the wireless telephone.

REFERENCES:
patent: 4433209 (1984-02-01), Kurusawa et al.
patent: 4449017 (1984-05-01), Burke et al.
patent: 4558178 (1985-12-01), Yasuda et al.
patent: 4562310 (1985-12-01), Watters et al.
patent: 5488657 (1996-01-01), Lynn et al.
patent: 5504812 (1996-04-01), Vangarde
patent: 5606607 (1997-02-01), Yamaguchi et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Headset for hands-free wireless telephone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Headset for hands-free wireless telephone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Headset for hands-free wireless telephone will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-403346

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.