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US 3,946,213 AGranted
Taximeter
AssigneeHaca Pty. Ltd.
InventorGeorge John Kepper
Life of this patent
Estimating the term…
Abstract
A taximeter in which taxi speed is represented by an analogue signal, the analogue signal controlling the frequency of a variable frequency oscillator and an indicated taxi fare read out being obtained by counting pulses from the oscillator to display a fare charge the rate of advancement of which is thus dependent upon the magnitude of the analogue signal.
Claims4
A taximeter comprising:
- generator means for generating a generator analog signal representing the speed of a taxi with which the meter is to be used;
- a reference source for generating a reference analog signal representative of a predetermined speed of said vehicle;
- selector means coupled to receive and compare the analog signals generated by said generator means and by said source;
- and
- fare read-out means coupled to said selector means for displaying a fare charged which is advanced in dependence upon the reference analog signal when the generator analog signal is indicative of a lesser speed than said predetermined speed and in dependence upon the generator analog signal when the speed represented thereby is greater than said predetermined speed.
2 more elements
Dependencies are inferred from the claim text.