Lost article detector unit with adaptive actuation signal recogn

Details Lost article detector unit with adaptive actuation signal recogn Lost article detector unit with adaptive actuation signal recogn

1997-08-25

1999-07-20

Lee, Benjamin C.

Communications: electrical

Condition responsive indicating system

Specific condition

3405731, 340571, 34082536, 34082549, 34082572, 367198, 367199, G08B 1314

Patent

active

059260904

ABSTRACT:
A lost article detector unit includes a microprocessor programmed to execute adaptive actuation signal recognition that discerns desired activation sounds from noise. Preferably the desired activation sounds include a sequence of four adjacent spaced-apart hand claps made by the same user. A transducer provides amplified sound signals to the microprocessor, which then analyzes and stores pattern information associated with the first clap-pair. Signals from a second clap-pair are then analyzed and compared with stored pattern information from the first clap-pair, using the algorithm. The adaptive use of such pattern information permits imposing timing tolerances that are sufficiently tight to reduce false triggering, without requiring the user to memorize a rigid sequence pattern of clapping. Upon microprocessor-recognition of desired activation sounds, the microprocessor causes the transducer to provide a locating signal that may be visual and/or audible. Audible locating signals may include synthesized human speech (in more than one language and/or voice), songs, music, among other signals. The activation signal permits a user to locate the detector unit and small objects attached thereto.

REFERENCES:
patent: 3949353 (1976-04-01), Waters et al.
patent: 4507653 (1985-03-01), Bayer
patent: 5315704 (1994-05-01), Shinta et al.
patent: 5677675 (1997-10-01), Taylor et al.
patent: 5699809 (1997-12-01), Combs et al.

Affiliated with

Also associated with

Rating

Lost article detector unit with adaptive actuation signal recogn does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lost article detector unit with adaptive actuation signal recogn, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lost article detector unit with adaptive actuation signal recogn will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1325225