Title: System and method for reducing the pulse repetition rate in an electronic taxi meter

Abstract: The taxi meter receives a sequence of pulses each representing a determined distance travelled by the taxi. The repetition rate of the input pulses is to be reduced by a ratio T so that each pulse having the reduced repetition rate signifies a determined fare increment. An adder or counter has a determined capacity and furnishes a carry signal whenever the sum signal created therein exceeds that capacity. An addend equal to K/T where K is the capacity of the adder is applied to the input of the adder for addition therein in response to each of the input pulses. The carry signals furnished by the adder constitute the desired signals each signifying the correct fare increment. The repetition rate of pulses each signifying a unit of waiting time can be similarly reduced and the resulting carry pulse sequences be applied to a selection circuit which selects the one having the highest repetition rate to constitute the tariff signal, namely the signals for advancing the taxi meter by one fare increment.

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Inventors: Warkentin, Ulrich (Tannheim, DT)

Application Number: 528820
Filing Date: 1974-12-03
Publication_date: 1976-02-10
Assignee: Kienzle Apparate GmbH (Villingen, DT)
Primary Class(es): 705/417 235/30R, 235/45
Other Classes:
US Patent Ref:

2892933	Jun, 1959	Shaw	235/150.
2913179	Nov, 1959	Gordon	235/150.
3388859	Jun, 1968	Kelch et al.	235/30.
3703985	Nov, 1972	Berg	235/45.
3818186	Jun, 1974	Harwood	235/45.

Other Refs:
Primary Examiner: Ruggiero, Joseph F.
Assistant Examiner:
Attorney: Striker; Michael J.