Horology: time measuring systems or devices – Combined with disparate device
Patent
1985-12-02
1986-11-25
Miska, Vit W.
Horology: time measuring systems or devices
Combined with disparate device
34030915, G04B 4700
Patent
active
046245782
ABSTRACT:
Rental equipment such as television sets are provided with a timer which operates a relay to connect power to the equipment only during the time for which rental has been paid. The timer includes a magnetic reader head and decoder to produce digital signals corresponding with a magnetic strip which has been encoded with rental period and identifying information at the location where the rent is paid. The timer contains a real-time clock and a microprocessor to compare the current time with the time in the rental period. A power supply for the timer derives energy from the same power lines used for the rental equipment, but a battery is also provided to power the clock alone when the power supply is not energized. Displays of the current time and rental expiration time are provided, as well as visible and audible alarms to warn of the approach of the end of the rental period.
REFERENCES:
patent: 3871502 (1975-03-01), Critchfield
patent: 3969886 (1976-07-01), Yoda
patent: 4301524 (1981-11-01), Koepp et al.
patent: 4451158 (1984-05-01), Selwyn et al.
patent: 4455093 (1984-06-01), Bowen et al.
patent: 4495484 (1985-01-01), Kawakatsu et al.
patent: 4504716 (1985-03-01), Sakamoto
Miska Vit W.
Prescott Charles J.
Quist Raymond H.
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