Communications – electrical: acoustic wave systems and devices – Echo systems – Returned signal used for control
Reexamination Certificate
2005-06-21
2005-06-21
Pihulic, Daniel (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Echo systems
Returned signal used for control
Reexamination Certificate
active
06909668
ABSTRACT:
An apparatus and method is provided for detecting motion or displacement of an object in a monitored zone. The apparatus is disposed between a load and a power source and comprises a transmitter for providing a pulsed signal within a monitored zone. The pulsed signal interacts with objects in the monitored zone and provides a return signal. A receiver receives echoes from a return signal of the pulsed record signal, and a microcontroller circuit processes the echoes. The processing involves retrieving and comparing phase and amplitude information associated with the echoes.
REFERENCES:
patent: 4382291 (1983-05-01), Nakauchi
patent: 4499564 (1985-02-01), Sirai
patent: 4512000 (1985-04-01), Masuko
patent: 4939683 (1990-07-01), van Heerden et al.
patent: 5349524 (1994-09-01), Draft et al.
patent: 5415045 (1995-05-01), Wadaka et al.
patent: 5576712 (1996-11-01), Bian et al.
patent: 5675320 (1997-10-01), Cecic et al.
patent: 5781460 (1998-07-01), Nguyen et al.
patent: 5831528 (1998-11-01), Cecic et al.
patent: 5914655 (1999-06-01), Clifton et al.
patent: 5917410 (1999-06-01), Cecic et al.
patent: 6239736 (2001-05-01), McDonald et al.
Baldwin John R.
Fox Martin D.
'Hubbell Incorporated
Goodman Alfred N.
Kendall Peter L.
Longanecker Stacey J.
Pihulic Daniel
LandOfFree
Ultrasonic displacement sensor using envelope detection 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 displacement sensor using envelope detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic displacement sensor using envelope detection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3508186