Register overflow warning device

Claim 2

An overflow warning device comprising: input means for entering digital information; a register having a predetermined storage capacity for storing the information entered by said input means; a plurality of digit indicators each having a first and a second electrode for indicating the digit of the information entered in said register; means for detecting the overflow of the information entered in said register beyond the predetermined storage capacity of said register; means for producing indication controlling signals by which a flashing period of said indicators is determined; a plurality of first switching means connected to selected ones of said first electrodes of said digit indicators; a plurality of second switching mEans connected to selected one of said second electrodes of said digit indicators; counting means having a plurality of bit outputs for counting the indication controlling signals; means for applying some bit outputs of said counting means to said first switching means to control the operation of said first switching means; means for applying other bits outputs of said counting means to said second switching means to control the operation of said second switching means; and means for supplying power to said digit indicators through said first and second switching means whereby the digit indicators will light and extinguish intermittently and in sequence upon the occurrence of said overflow.

Claim 3

An overflow warning device according to claim 1, wherein said indication controlling signal producing means comprises a motor and means for generating signals in response to the rotation of said motor.

Claim 4

An overflow warning device according to claim 1, wherein said first and second switching means comprise transistors.

Claim 5

An overflow warning device according to claim 1, wherein said counting means is connected to an OR gate having two inputs to one of which the indication controlling signals are applied and to the other of which is applied a pulse generated when the digital information is entered by said input means.

Claim 6

An overflow warning device according to claim 1, wherein said overflow detecting means comprises an AND gate to which is applied the information entered in said register and a digit signal corresponding to the overflow digit of said register and a flip-flop to which is applied an output of said AND gate.

Claim 7

An overflow warning device according to claim 5, wherein said flip-flop has clear signal applying means for reversing a condition of said flip-flop in which the output of said AND gate is applied thereto.

Claim 8

An overflow warning device comprising: input means for entering digital information; a register having a predetermined storage capacity for storing the information entered by said input means; a plurality of digit indicators each having a first and a second electrode for indicating the digit of the information entered in said register; means for detecting the overflow of the information entered in said register beyond the predetermined storage capacity of said register; means for producing indication controlling signals by which a flashing period of said indicators is determined; a plurality of first switching means connected to selected ones of said first electrodes of said digit indicators; a plurality of second switching means connected to selected ones of said second electrodes of said digit indicators; counting means having a plurality of bit outputs for counting the indication controlling signals; means for applying a plurality of bit outputs of said counting means to said first switching means through first AND gates to control the operation of said first switching means; means for applying a plurality of other bit outputs of said counting means to said second switching means through second AND gates to control the operation of said second switching means; and means for supplying power to said digit indicators through said first and second switching means whereby the digit indicators will light and extinguish intermittently and in sequence upon the occurrence of said overflow.

Claim 9

An overflow warning device comprising: input means for entering digital information; a register having a predetermined storage capacity for storing the information entered by said input means; a plurality of digit indicators each having a first and a second electrode for indicating the digit of the information entered in said register; means for detecting the overflow of the information entered in said register beyond the predetermined storage capacity of said register; means for producing indication controlling signals by which a flashing period of said indicators is determined; a plurality of first switching means connected to selected ones of said first electrodes of said digit indicators; a plurality of second switching means connected to selected ones of said second electrodes of said digit indicators; counting means having a plurality of bit outputs for counting the indication controlling signals; means for applying a plurality of bit outputs of said counting means to said first switching means through first AND gates to control the operation of said first switching means; means for applying a plurality of other bit outputs of said counting means to said second switching means through second AND gates to control the operation of said second switching means; and means for supplying power to said digit indicators through said first and second switching means whereby the digit indicators will light and extinguish intermittently and in sequence upon the occurrence of said overflow.

Claim 10

An overflow warning device comprising: input means for entering digital information; a register having a predetermined storage capacity and an overflow digit stage which stores information beyond a given storage capacity for storing the information entered by said input means; a plurality of digit indicators each having a first and a second electrode for indicating the digit of the information entered in said register; an AND gate to which is applied information entered in said register and a digit signal corresponding to the overflow digit stage of said regiSter; a flip-flop to which is applied an output of said AND gate; means for generating indication controlling signals in response to the rotation of a motor to determine a flashing period of said digit indicators; a plurality of first switching means being connected to selected ones of said first electrodes of said digit indicators; a plurality of second switching means being connected to selected ones of said second electrodes of said digit indicators; counting means having a plurality of bit outputs for counting the indication controlling signals; means for applying some bit outputs of said counting means to said first switching means to control the operation of said first switching means; means for applying other bit outputs of said counting means to said second switching means to control the operation of said second switching means; and means for supplying power to said digit indicators through said first and second switching means whereby the digit indicators will light and extinguish intermittently and in sequence upon the occurrence of said digit signal corresponding to the overflow digit stage of said register.

Claim 11

An overflow warning device comprising: input means for entering digital information; a register having a predetermined storage capacity and an overflow digit stage which stores information beyond a given storage capacity for storing the information entered by said input means; a plurality of digit indicators each having a first and a second electrode for indicating the digit of the information entered in said register; an AND gate to which is applied information entered in said register and a digit signal corresponding to the overflow digit stage of said regiSter; a flip-flop to which is applied an output of said AND gate; means for generating indication controlling signals in response to the rotation of a motor to determine a flashing period of said digit indicators; a plurality of first switching means being connected to selected ones of said first electrodes of said digit indicators; a plurality of second switching means being connected to selected ones of said second electrodes of said digit indicators; counting means having a plurality of bit outputs for counting the indication controlling signals; means for applying some bit outputs of said counting means to said first switching means to control the operation of said first switching means; means for applying other bit outputs of said counting means to said second switching means to control the operation of said second switching means; and means for supplying power to said digit indicators through said first and second switching means whereby the digit indicators will light and extinguish intermittently and in sequence upon the occurrence of said digit signal corresponding to the overflow digit stage of said register.