Information display system

Claim 2

In digital instrument apparatus including instrument means for providing sets of binary numbers representative of coordinate points, and means for displaying the coordinate points connected to the instrument means, the improvement comprising: means connected to the instrument means, for subtracting a selectable constant binary number from one binary number of each coordinate set; and means connected intermediate the means for subtracting and the display means, for multiplying the difference of the one binary number by a selectable binary number.

Claim 3

The apparatus of claim 1 in which the means for subtracting includes: binary counter means having input means; and pulse means connected to the binary counter input means, for varying the constant binary number.

Claim 4

The apparatus of claim 2 in which: the binary counter comprises an up-down counter; and the binary counter input means includes count-up input means and count-down input means.

Claim 5

The apparatus of claim 3 in which the pulse means comprises: pulse generator means having output means; switch means; the switch means connected to the pulse generator output means, the count-up input means and the count-down input means; and the switch means operable to a first position disconnecting the pulse generator output means from the binary counter input means, a second position connecting the pulse generator output means to the count-up input means and a third position connecting the pulse generator output means to the count-down input means.

Claim 6

The apparatus of claim 4 in which the switch means includes: lever means manually operable to select each of the first, second and third positions; and means connected to the lever mean for normally biasing the lever means to the first position.

Claim 7

The apparatus of claim 4 in which: the pulse generator means includes means for providing pulses at a plurality of frequencies; and said switch means is operable to select any one of the frequencies when in he second or third position.

Claim 8

The apparatus of claim 2 including: gate means connected intermediate the binary counter means and the means for subtracting; and gate switch means connected to the gate means for selectively opening and closing the gate means.

Claim 9

The apparatus of claim 2 including: further binary counter means; means connecting the further binary counter means to the pulse means for varying the count stored therein; comparator means; means connecting the comparator means to the instrument means, for providing thereto another binary number of each coordinate set; means connecting the comparator means to the further counter means; signal output means on the comparator means for providing an output signal only on comparison between the other binary number in the comparator means and the count in the further counter means; gate means connecting the instrument means to the binary counter input means for providing the one binary number to the binary counter means; switch means connecting the signal output means to the gate means, the switch means having on and off positions; and the gate means responsive to the signal from the signal output means when the switch is in the on position, for enering the one binary number in the binary counter means.

Claim 10

The apparatus of claim 8 including: marking means in the display means for marking a selected coordinate point; and means connecting the marking means to the signal output means.

Claim 11

The apparatus of claim 1 in which the means for subtracting includes: limit means for establishing a maximum difference of the one binary number and a minimum difference of the one binary number.

Claim 12

The apparatus of claim 1 in which the means fOr multiplying includes: limit means for establishing a maximum product of the difference of the one binary number times the selected binary number and a minimum product of the difference of the one binary number times the selected binary number.

Claim 13

The apparatus of claim 8 in which: the further binary counter means comprises an up-down counter; and the further binary counter means includes input means comprising count-up input mean and count-down input means.

Claim 14

The apparatus of claim 12 in which the pulse means comprises: pulse generator means having output means; switch means; the switch means connected to the pulse generator output means, the count-up input means and the count-down input means; and the switch means operable to a first position disconnecting the pulse generator output means from the binary counter input means, a second position connecting the pulse generator output means to the count-up input means and a third position connecting he pulse generator output means to the count-down input means.

Claim 15

The apparatus of claim 13 in which the switch means includes: lever means manually operable to select each of the first, second and third positions; and means connected to the lever means for normally biasing the lever means to the first position.

Claim 16

The apparatus of claim 12 in which: the pulse generator means includes means for providing pulses at a plurality of frequencies; and said switch means is operable to select any one of the frequencies when in the second or third position.

Claim 17

In an information display system in which sets of coordinate points are sequentially displayed on display means, each of the coordinate points having an ordinate value and an abscissa value, the improvement comprising: abscissa input means for receiving digital signals representative of the abscissa value of each coordinate point; ordinate input means for receiving digital signals representaive of the ordinate value of each coordinate point; subtraction means having minuend input means, subtrahend input means and difference output means; digital storage means having input means and output means; multiplication means having multiplicand input means, multiplier input means and product output means; means connecting the abscissa input means to the display means; means connecting the ordinate input means to the minuend input means; means connecting the digital storage means output means to the subtrahend input means; means connected to the digital storage means input means, for selectively supplying digital signals thereto for storage; means connecting the difference output means to the multiplicand input means; means connected to the multiplier input means for selectively supplying signals thereto for varying the multiplier value; and means connecting the product output means to the display means.

Claim 18

In an information display system in which sets of coordinate points are sequentially displayed on display means, each of the coordinate points having an ordinate value and an abscissa value, the improvement comprising: abscissa input means for receiving digital signals representative of the abscissa value of each coordinate point; ordinate input means for receiving digital signals representaive of the ordinate value of each coordinate point; subtraction means having minuend input means, subtrahend input means and difference output means; digital storage means having input means and output means; multiplication means having multiplicand input means, multiplier input means and product output means; means connecting the abscissa input means to the display means; means connecting the ordinate input means to the minuend input means; means connecting the digital storage means output means to the subtrahend input means; means connected to the digital storage means input means, for selectively supplying digital signals thereto for storage; means connecting the difference output means to the multiplicand input means; means connected to the multiplier input means for selectively supplying signals thereto for varying the multiplier value; and means connecting the product output means to the display means.

Claim 19

The system of claim 16 in which the means connecting the digital storage means output means to the subtrahend input means includes: inhibit means for selectivley inhibiting transfer of information from the digital storage means to the subtrahend input means.

Claim 20

The system of claim 17 in which the inhibit means includes: gate means connected intermediate the digital storage means output means and the subtrahend input means; and switch means connected to the gate means for selectively enabling the gate means.

Claim 21

The system of claim 16 in which: the digital storage means comprises digital up-down counter means; and the digital storage means input means includes count-up input means and count-down input means.

Claim 22

The system of claim 19 in which: the means for supplying digital signals comprises pulse generator means haing output means; and switch means connected intermediate the generator output means and the count-up and count-down input means.

Claim 23

The system of claim 20 in which: the generator means includes means for generating pulses at different rates; and the switch means is movable to connect a selected rate to the selected one of the count-up and count-dOwn input means.

Claim 24

The system of claim 16 in which the difference output means includes: difference limit means for inhibiting transfer of any number to the multiplier means when the number is greater than a first predetermined value or less than a second predetermined value.

Claim 25

The system of claim 16 in which the product output means includes; product limit means for inhibiting transfer of any number to thedisplay means when the number is greater than a first predetermined value or less than a second predetermined value.

Claim 26

The system of claim 16 including: means for entering the ordinate value corresponding to the selected abscissa value of any selected coordinate point into the digital storage means; and means connecting the means for storing to the abscissa input means, the ordinate input means and the digital storage input means.

Claim 27

The system of claim 24 including: mark means on the display means; and means connecting the means for entering to the mark means, for marking a selected coordinate point on the display means.

Claim 28

The system of claim 19 including: gated input means on the up-down counter means; furher counter means having input and output means; comparator means having input and output means; means connecting the ordinate input means to the gated input means; control means connecting the comparator output means to the gated input means; means connecting the abscissa input means to the comparator input means; means connecting the further counter means output means to the comparator input means; and means connecting the further counter input means to the means for supplying digital signals.

Claim 29

The system of claim 26 including: mark means on the display means for marking a selected displayed coordinate point; and the control means connected intermediate the mark means and the comparator output means.

Claim 30

The system of claim 27 in combination with the system of claim 20 in which: the further counter means comprises a further up-down counter means having further count-up input means and further count-down input means; and further switch means connected intermediate the generator output means and the further count-up and further count-down input means.

Claim 31

The system of claim 28 in combination wih the system of claim 21 in which: the furher switch means is movable to connect a selected rate to the selected one of the further count-up and further count-down input means.

Claim 32

In apparatus for displaying coordinate points on display means, each coordinate point having at least an abscissa value and an ordinate value, the improvement comprising: abscissa input means; ordinate input means; means connecting the abscissa input means to the display means; subtraction means for subtracting a selectable value from each ordinate value; and means connecting the subtraction means between the ordinate input means and the display means.

Claim 33

In apparatus for displaying coordinate points on display means, each coordinate point having at least an abscissa value and an ordinate value, the improvement comprising: abscissa input means; ordinate input means; means connecting the abscissa input means to the display means; subtraction means for subtracting a selectable value from each ordinate value; and means connecting the subtraction means between the ordinate input means and the display means.

Claim 34

The apparatus of claim 30 in which the means connecting the subtraction means between the ordinate means and the display means comprises: multiplication means for multiplying a received value by a selectable factor.