Mobile perpetually self-correcting estimated time of arrival calculator
First Claim
1. An estimated time of arrival calculator for computing the estimated time of arrival of a vehicle or the like at a desired destination from information reflecting the total estimated distance and the desired average speed to be travelled to the destination supplied by an operator and from information reflecting the present chronological time and the actual distance travelled by the vehicle, the calculator comprising:
- (a) memory means having a plurality of storage locations for storing digital information;
(b) means for entering into said memory means the information reflecting the total estimated distance and the desired average speed to be travelled to the destination;
(c) clock means for generating information reflecting the present chronological time;
(d) calculating means responsive to said memory means and said clock means for computing the estimated time of arrival at the destination from information reflecting the total estimated distance to the destination, the desired average speed, the actual distance travelled and the present chronological time; and
(e) means responsive to said calculating means for displaying the estimated time of arrival.
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Accused Products
Abstract
A calculator for computing the estimated time of arrival of a vehicle or the like at a desired destination. The calculator, under control of a microprocessor and related interfacing devices, computes and periodically updates the estimated time of arrival at the destination from information reflecting present chronological time, the total estimated distance and the desired average speed to be travelled to the destination, and the actual distance travelled by the vehicle. The information resulting from the microprocessor'"'"'s computations is visually displayed together with the present chronological time. The calculator may also be provided with warning sensors to provide an indication when a predetermined maximum speed has been exceeded. In an alternate mode, the calculator may be caused to function as a standard four function calculator, without affecting data previously stored in the estimated time of arrival mode.
20 Citations
7 Claims
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1. An estimated time of arrival calculator for computing the estimated time of arrival of a vehicle or the like at a desired destination from information reflecting the total estimated distance and the desired average speed to be travelled to the destination supplied by an operator and from information reflecting the present chronological time and the actual distance travelled by the vehicle, the calculator comprising:
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(a) memory means having a plurality of storage locations for storing digital information; (b) means for entering into said memory means the information reflecting the total estimated distance and the desired average speed to be travelled to the destination; (c) clock means for generating information reflecting the present chronological time; (d) calculating means responsive to said memory means and said clock means for computing the estimated time of arrival at the destination from information reflecting the total estimated distance to the destination, the desired average speed, the actual distance travelled and the present chronological time; and (e) means responsive to said calculating means for displaying the estimated time of arrival. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification