US 4,100,401 AGranted

Calorie calculator-chronometer

OwnerEugene F. Tutt, Rita C. Tuttinventors

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Abstract

A solid-state electronic wristwatch with a digital display includes additional circuitry to permit utilization of the display and the source of constant frequency signals of the watch to expand its operation to a calorie calculator. The calorie calculator components include a counter circuit for entering a count indicative of caloric intake, circuitry for entering calorie expenditure rate in terms of calories expended per hour, and a main calorie counter into which the calorie input information is entered and from which counts representative of calories consumed are removed at a rate determined by the calorie expenditure rate entered into the system. The watch display may be activated to display the calories being added, the calorie expenditure rate, and the net calories unconsumed on demand by the user. The watch also, if desired, may include a calendar display which also shares the common digital display elements used to display the time and calorie information.

Claims4

Dependent claims

In an electronic timepiece having a source of constant frequency signals pulses, a time computing circuit coupled to the source of constant frequency signal pulses and producing time information in binary coded decimal form, an electro-optical digital display, a decoder circuit coupling the time computer circuit to the display, and a first manually operated switch coupled to the time computing circuit for energizing the display from the time computing circuit in response to operation of such first switch, an auxiliary calorie calculator data system including in combination:

a main storage counter for storing numerical data indicative of net calories;
a rate controlling circuit coupling said main counter with said source of constant frequency pulses for decrementing the count in said main counter at a predetermined rate;
an auxiliary digital counter;
means including at least a second manually operated switch coupled with said auxiliary counter and with said source of constant frequency pulses to store a count in said auxiliary counter corresponding to caloric intake, said second switch further being coupled with said auxiliary counter for energizing said display from the output of said auxiliary counter in response to operation of said second switch;
means controlled by said second switch for transferring the count from said auxiliary counter to said main counter to increase the count in said main counter by the amount of the count stored in said auxiliary counter;
calorie rate expenditure circuit means including a third manually operated switch for effecting storage of a count in said auxiliary counter corresponding to the rate of expenditure of calories;
a latch memory circuit coupled with said auxiliary counter and operated by said third switch for storing the count present in said auxiliary counter;
a calorie rate down-counter coupled with said latch memory circuit and with said rate controlling circuit for temporarily storing the calorie count stored in said latch memory circuit and for varying the rate at which the count in the main counter is decremented by said rate controlling circuit directly proportional to the count stored in said latch memory circuit;
and
a fourth manually operated switch coupled with said main counter for energizing said display from said main counter in response to operation of said fourth switch.

7 more elements

In an electronic timepiece including a source of constant frequency signals, a time computing circuit coupled to the source of constant frequency signals and an electro-optical digital display where the time computing circuit produces time information in binary coded form to a decoder coupling the time computer circuit to said display, and means coupled with the time computing circuit for energizing said display in response to operation of such means, an auxiliary data system including in combination:

main auxiliary storage counter circuit means for storing numerical data other than time and date data;
means including at least first manually operated switch coupled with said main auxiliary storage counter circuit means for effecting the storage of data therein;
means coupled with said source of constant frequency signals and with said main auxiliary storage counter circuit means for applying pulses from said source of constant frequency signals to said counter circuit means for decrementing the count in said counter circuit means upon the application of each of said pulses thereto;
further means coupled with said counter circuit means for selectively supplying additional pulses to said counter circuit means over predetermined time intervals to further decrement the count in said counter circuit means in response to each of such additional pulses;
and
means including a second manually operated switch coupling the output of said counter circuit means with the decoder for energizing the display from said counter circuit means in response to operation of said second switch.

3 more elements

Dependencies are inferred from the claim text.