Key-controlled inductive input arrangement

Claim 2

Input arrangement for representing information in coded form; comprising, in combination, a primary plate, and at least one secondary plate superimposed on said primary plate, said primary and secondary plates having a plurality of sets of registering holes forming a plurality of rows of registering holes; primary circuit means carried by said primary plate and having a plurality of sets of primary coupling loops; at least one set of secondary circuit means carried by said secondary plate, each secondary circuit means having secondary coupling loops registering with selected primary coupling loops in accordance with a code; a plurality of key means; a plurality of sets of coupling core means, said sets of core means being respectively connected with and controlled by said key means to move to and from an operative position located in a set of said holes and primary coupling loops and in secondary coupling loops where the same are provided in accordance with said code; means for generating a driving pulse in said primary circuit means and being operated by said key means so that upon actuation of any selected key means, a driving pulse is produced in said primary circuit means and produces a secondary pulse only in a secondary circuit means connected by a secondary coupling loop and by a core means in said operative position with a primary coupling loop; and a set of output means respectively electrically connected with said secondary circuit means for receiving said secondary pulses.

Claim 3

Input arrangement for representing information in coded form; comprising, in combination, primary circuit means having a plurality of sets of primary coupling loops, said primary circuit means including a set of pairs of primary conductor bars extending along a set of imaginary lines and being connected to form a primary line loop having portions extending along said lines, said primary conductor bars of each pair having portions forming said primary coupling loops; at least one set of secondary circuit means, each having secondary coupling loops registering with selected primary coupling loops in accordance with a code, said secondary circuit means including at least one set of pairs of secondary conductor bars extending along said lines, respectively, the ends of said secondary conductor bars of each pair being connected to each other so as to form a set of secondary line loops, said secondary conductor bars of each pair having portions forming said secondary coupling loops; a plurality of key means; a plurality of sets of coupling core means, said sets of core means being respectively connected with and controlled by said key means to move to and from an operative position located in a set of said primary coupling loops and in secondary coupling loops where the same are provided in accordance with said code; means for generating a driving pulse in said primary circuit means and being operated by said key means so that upon actuation of any selected key means, a driving pulse is produced in said primary circuit means and produces a secondary pulse only in a secondary circuit means connected by a secondary coupling loop and by a core means in said operative position with a primary coupling loop; and a set of output means respectively electrically connected with said secondary circuit means for receiving said secondary pulses.

Claim 4

Input arrangement for representing information in coded form; comprising, in combination, primary circuit means having a plurality of sets of primary coupling loops, said primary circuit means including a set of pairs of primary conductor bars extending along a set of imaginary lines and being connected to form a primary line loop having portions extending along said lines, said primary conductor bars of each pair having portions forming said primary coupling loops; at least one set of secondary circuit means, each having secondary coupling loops registering with selected primary coupling loops in accordance with a code, said secondary circuit means including at least one set of pairs of secondary conductor bars extending along said lines, respectively, the ends of said secondary conductor bars of each pair being connected to each other so as to form a set of secondary line loops, said secondary conductor bars of each pair having portions forming said secondary coupling loops; a plurality of key means; a plurality of sets of coupling core means, said sets of core means being respectively connected with and controlled by said key means to move to and from an operative position located in a set of said primary coupling loops and in secondary coupling loops where the same are provided in accordance with said code; means for generating a driving pulse in said primary circuit means and being operated by said key means so that upon actuation of any selected key means, a driving pulse is produced in said primary circuit means and produces a secondary pulse only in a secondary circuit means connected by a secondary coupling loop and by a core means in said operative position with a primary coupling loop; and a set of output means respectively electrically connected with said secondary circuit means for receiving said secondary pulses.

Claim 5

Input arrangement for representing information in coded form; comprising, in combination, primary circuit means having a plurality of sets of primary coupling loops; at least one set of secondary circuit means each having secondary coupling loops registering with selected primary coupling loops in accordance with a code; a plurality of key means; a plurality of sets of coupling core means, said sets of core means beIng respectively connected with and controlled by said key means to move to and from an operative position located in a set of said primary coupling loops and in secondary coupling loops where the same are provided in accordance with said code; a plurality of linkages respectively connecting said key means with said sets of core means, each linkage including a self-disengaging coupling means so that each set of core means is disconnected from the respective key means after having been moved by the same by means of said linkage to said operative position; means for returning each set of core means to a position of rest upon disengagement of the respective coupling means; means for generating a driving pulse in said primary circuit means and being operated by said key means so that upon actuation of any selected key means, a driving pulse is produced in said primary circuit means and produces a secondary pulse only in a secondary circuit means connected by a secondary coupling loop and by a core means in said operative position with a primary coupling loop; and a set of output means respectively electrically connected with said secondary circuit means for receiving said secondary pulses.

Claim 6

Input arrangement for representing information in coded form; comprising, in combination, primary circuit means having a plurality of sets of primary coupling loops; at least one set of secondary circuit means each having secondary coupling loops registering with selected primary coupling loops in accordance with a code; a plurality of key means; a plurality of sets of coupling core means, said sets of core means beIng respectively connected with and controlled by said key means to move to and from an operative position located in a set of said primary coupling loops and in secondary coupling loops where the same are provided in accordance with said code; a plurality of linkages respectively connecting said key means with said sets of core means, each linkage including a self-disengaging coupling means so that each set of core means is disconnected from the respective key means after having been moved by the same by means of said linkage to said operative position; means for returning each set of core means to a position of rest upon disengagement of the respective coupling means; means for generating a driving pulse in said primary circuit means and being operated by said key means so that upon actuation of any selected key means, a driving pulse is produced in said primary circuit means and produces a secondary pulse only in a secondary circuit means connected by a secondary coupling loop and by a core means in said operative position with a primary coupling loop; and a set of output means respectively electrically connected with said secondary circuit means for receiving said secondary pulses.

Claim 7

Input arrangement for representing information in coded form; comprising, in combination, primary circuit means including a primary winding having a plurality of sets of primary coupling loops; at least one set of secondary circuit means, each including a secondary winding having secondary coupling loops registering with selected primary coupling loops in accordance with a code; a plurality of key means forming a keyboard, and including alphanumerical key means for effecting printing of a selected one of two different alphanumerical symbols, and a shift key; a plurality of sets of coupling core means, said sets of core means being respectively connected with and controlled by said alphanumerical key means to move to and from an operative position located in a set of said primary coupling loops and in secondary coupling loops where the same are provided in accordance with said code; means for generating a driving pulse in said primary circuit means and being operated by said key means so that upon actuation of any selected key means, a driving pulse is produced in said primary circuit means and produces a secondary pulse only in a secondary circuit means connected by a secondary coupling loop and by a core means in said operative position with a primary coupling loop; a set of output means respectively electrically connected with said secondary circuit means for receiving said secondary pulses; and a coupling core operated by said shift key to magnetically couple said primary and secondary windings whereby a shift pulse is produced in said secondary circuit means by a driving pulse in said primary circuit means; said secondary circuit means including means for producing an L bit representing one of said alphanumerical symbols of an actuated alphanumerical key means at said output means under the control of said secondary pulse; and negating means for producing an O bit representing the other alphanumerical symbol of said actuated key means when said shift key is operated at the same time as said alphanumerical key means whereby a selected one of said two alphanumerical symbols can be represented at said output means.

Claim 8

Input arrangement for representing information in coded form; comprising, in combination, primary circuit means including a primary winding having a plurality of sets of primary coupling loops; at least one set of secondary circuit means, each including a secondary winding having secondary coupling loops registering with selected primary coupling loops in accordance with a code; a plurality of key means forming a keyboard, and including alphanumerical key means for effecting printing of a selected one of two different alphanumerical symbols, and a shift key; a plurality of sets of coupling core means, said sets of core means being respectively connected with and controlled by said alphanumerical key means to move to and from an operative position located in a set of said primary coupling loops and in secondary coupling loops where the same are provided in accordance with said code; means for generating a driving pulse in said primary circuit means and being operated by said key means so that upon actuation of any selected key means, a driving pulse is produced in said primary circuit means and produces a secondary pulse only in a secondary circuit means connected by a secondary coupling loop and by a core means in said operative position with a primary coupling loop; a set of output means respectively electrically connected with said secondary circuit means for receiving said secondary pulses; and a coupling core operated by said shift key to magnetically couple said primary and secondary windings whereby a shift pulse is produced in said secondary circuit means by a driving pulse in said primary circuit means; said secondary circuit means including means for producing an L bit representing one of said alphanumerical symbols of an actuated alphanumerical key means at said output means under the control of said secondary pulse; and negating means for producing an O bit representing the other alphanumerical symbol of said actuated key means when said shift key is operated at the same time as said alphanumerical key means whereby a selected one of said two alphanumerical symbols can be represented at said output means.

Claim 9

Input arrangement as claimed in claim 1 wherein each said key means has the same number of ferromagnetic coupling core means in each set of coupling core means; wherein said primary coupling loops of each set have said number; wherein said secondary coupling loops of each set have said number; and wherein primary and said secondary coupling loops which register with each other substantially surround in accordance with said code registering holes in said primary and secondary plates, and the core means in the same in said operative position.

Claim 10

Input arrangement as claimed in claim 2 wherein said portions of said secondary conductor bars are semicircular; wHerein corresponding semicircular portions of a pair of secondary conductor bars have one position in which they are parallel, and another position in which they complement each other to form a substantially circular secondary coupling loop; the parallel position representing O, and said secondary coupling loop representing L in a binary code.

Claim 11

Input arrangement as claimed in claim 1 wherein said primary circuit includes a set of pairs of primary conductor bars respectively extending along said rows of holes in said primary plate, said primary conductor bars of each pair forming said primary coupling loops about said holes in said primary plate, said primary conductor bars being connected to form a primary line loop having portions extending along said rows of holes of said primary plate.

Claim 12

Input arrangement as claimed in claim 7 wherein said secondary circuit means include at least one set of pairs of secondary conductor bars extending along said rows of holes in said secondary plate, the ends of said secondary conductor bars of each pair being connected to each other to form a set of secondary line loops, said secondary conductor bars of each pair having portions together forming said secondary coupling loops about selected holes in said secondary plate.

Claim 13

Input arrangement as claimed in claim 1 wherein said primary circuit includes a set of pairs of primary conductor bars respectively extending along said rows of holes in said primary plate, said primary conductor bars of each pair forming said primary coupling loops about said holes in said primary plate, said primary conductor bars being connected to form a primary line loop having portions extending along said rows of holes of said primary plate; and wherein said secondary circuit means include at least one set of pairs of secondary conductor bars extending along said lines of holes in said secondary plate, the ends of said secondary conductor bars of each pair being connected to each other to form a set of secondary line loops, said secondary conductor bars of each pair having portions together forming said secondary coupling loops about selected holes in said secondary plate.

Claim 14

Input arrangement as claimed in claim 9 wherein conductor bars of a pair of conductor bars are secured along the length thereof to opposite surfaces of the respective plate, respectively, to form with the respective plate a printed circuit.

Claim 15

Input arrangement as claimed in claim 9 wherein each set of holes forms a column in said set of rows of holes; and comprising a plurality of movable carriers; wherein each set of core means is a set of magnetizable coupling pins mounted on a carrier opposite a column of registering holes in said plates; and comprising linkage means connecting each carrier with one of said keys so that each carrier with the respective set of coupling pins is moved by the respective key to said operative position in which said coupling pins are located in registering holes of a column and in the respective coupling loops.

Claim 16

Input arrangement as claimed in claim 1 comprising a first and second secondary plates superimposed on said primary plate, said primary and secondary plates having a plurality of sets of registering holes forming a set of rows; wherein said primary circuit means include a set of pairs of primary conductor bars, said pairs extending along said rows of holes, respectively, of said primary plate and forming said primary coupling loops about said holes in said primary plate, and being connected to form a primary line loop having portions along said rows; wherein said secondary circuit means include two sets of pairs of secondary conductor bars, said pairs of secondary conductor bars extending along said rows of holes in said first and second secondary include two plates, respectively, and forming secondary loops about selected holes in said first and second secondary plates, the ends of each pair of secondary conductor bars being connected to each other so that tHe conductor bars of said first secondary plate form a first set of secondary line loops having first secondary coupling loops, and the conductor bars of said second secondary plate form a second set of secondary line loops having second secondary coupling loops; and wherein said secondary line loops are respectively connected with different output means.

Claim 17

Input arrangement as claimed in claim 3 wherein each linkage includes a locking arm; and comprising locking means engaged by said locking arm in said operative position of each set of core means so that only one key means can be operated and only one set of core means can be moved to said operative position at a time.

Claim 18

Input arrangement as claimed in claim 3 comprising a base plate including a plurality of base plate portions and consisting of a synthetic material, said primary and secondary plates being superimposed on said base plate; and metal frame means for said superimposed plates, said base plate portions being individually secured to and supported by said metal frame means.

Claim 19

Input arrangement as claimed in claim 4 wherein said set of secondary circuit means includes a special secondary circuit means having coupling loops arranged so that a secondary pulse is produced in said special secondary circuit means upon actuation of any of said alphanumerical key means wherein said negating means is electrically connected with said special circuit means; and wherein all said alphanumerical key means are associated with corresponding bits for representing upper case and lower case symbols.

Claim 20

Input arrangement as claimed in claim 15 wherein said set of secondary circuit means includes a first group of secondary circuit means for producing a group of secondary pulses at a corresponding group of output means, and a second group of secondary circuit means electrically connected with said secondary winding for carrying out a parity control when said shift key is operated.