Communications: electrical – Continuously variable indicating – With meter reading
Patent
1991-08-09
1993-10-05
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
377 6, 377 52, H04Q 100
Patent
active
052509419
ABSTRACT:
A customer, automobile or other moving entity is monitored by sensing the presence of the entity to generate a signal. The signals are correlated with individual increments of time during an extended time period of days or months. Each signal may represent the count of a single individual or car, or the amount of time the individual or car is in the range of the sensor. The data is collected in a digital memory for the prolong periods of time and can be dumped to a personal computer in the form of a spreadsheet compatible file for future analysis. A unitary battery powered version of the invention includes a power saving circuit while another version of the invention, powered by a wall outlet, can be connected to multiple sensors for collecting data in a large environment such as a store.
REFERENCES:
patent: 3727034 (1973-04-01), Pope
patent: 3808410 (1974-04-01), Schlesinger
patent: 4285483 (1981-08-01), Cipollone
patent: 4700295 (1987-10-01), Katsof et al.
patent: 4799243 (1989-01-01), Zepke
patent: 4831638 (1989-05-01), Dabby et al.
patent: 4967608 (1990-11-01), Yost
patent: 5047962 (1991-09-01), Cornish
Cohen-Miller Lily
McGregor Peter L.
Holloway III Edwin C.
Yusko Donald J.
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