Ultrasonic proximity detector for a telephone device

Telephonic communications – Having light wave or ultrasonic link for speech or paging...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C455S569100

Reexamination Certificate

active

07010098

ABSTRACT:
An ultrasonic proximity detector for a telephone device to detect the proximity of an object thereto includes an ultrasound signal generator generating ultrasound that is broadcast by a speaker of the telephone device. Processing circuitry is coupled to a microphone of the telephone device. The processing circuitry processes broadcast ultrasound that is picked up by the microphone to detect the proximity of an object to the telephone device.

REFERENCES:
patent: 3109893 (1963-11-01), Burns
patent: 4206318 (1980-06-01), Steely
patent: 4330690 (1982-05-01), Botros
patent: 5539705 (1996-07-01), Akerman et al.
patent: 5729604 (1998-03-01), Van Schyndel
patent: 5813998 (1998-09-01), Dias
patent: 5835587 (1998-11-01), Adachi et al.
patent: 5884156 (1999-03-01), Gordon
patent: 5963640 (1999-10-01), Rabe
patent: 6021205 (2000-02-01), Yamada et al.
patent: 6104819 (2000-08-01), Nickum
patent: 6542436 (2003-04-01), Myllyla
patent: 6546096 (2003-04-01), Meiden et al.
patent: 2001/0012792 (2001-08-01), Murray
patent: 43 44 753 (1995-06-01), None
patent: 1 174 732 (2002-01-01), None
patent: WO 92/09166 (1992-05-01), None
Canadian Office Action dated Dec. 8, 2004 from corresponding Canadian Application No. 2,356,603.
Canadian Office Action dated Mar. 1, 2004 from corresponding Canadian Application No. 2,356,603.

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

Ultrasonic proximity detector for a telephone device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultrasonic proximity detector for a telephone device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic proximity detector for a telephone device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3608477

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