Device to locate commonly misplaced objects

Details Device to locate commonly misplaced objects Device to locate commonly misplaced objects

1976-01-26

1978-07-18

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340171R, 340311, 340312, 325 55, 325 64, G08B 108

Patent

active

041018737

ABSTRACT:
Miniaturized coded transmitter and battery powered receivers selectively responsive to a predetermined code transmission are provided with a miniaturized audible signal generator in each receiver such that the receiver, when interrogated by a proper signal, will respond audibly. By placing such receivers on commonly used objects such as eyeglasses, purses and other personal articles, audible location of these articles is accomplished by interrogating each object with a corresponding coded signal and following the audible response from the object to the position of the object to locate the latter. The duty cycle of the receiver is very short and recurrent over intervals less than the known energization interval of the transmitter to insure reception but materially minimize the power consumption of the receivers.

REFERENCES:
patent: 2541050 (1951-02-01), Halstead
patent: 2579470 (1951-12-01), Brown
patent: 3314048 (1967-04-01), Green
patent: 3336530 (1967-08-01), Sloan et al.
patent: 3403381 (1968-09-01), Haner
patent: 3465294 (1969-09-01), Carsello et al.
patent: 3500458 (1970-03-01), Cannalte
patent: 3686635 (1972-08-01), Millington et al.
patent: 3768090 (1973-10-01), Williams
patent: 3790948 (1974-02-01), Ratkovich
patent: 3818368 (1974-06-01), Wycoff

Affiliated with

Also associated with

Rating

Device to locate commonly misplaced objects does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device to locate commonly misplaced objects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device to locate commonly misplaced objects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-342007