Self-teaching machine for binary logic

Claim 2

An independent machine for teaching binary logic utilizing a printed problem sheet having a plurality of illustrated logic gates, input and output signal paths printed thereon, said machine comprising: a. a plurality of programmable universal gates (PUG), each PUG having at least two input terminals and one output terminal, b. annunciator means for at least one of said PUG, c. a plurality of manually operated situation selector switches to provide logic signals to the said PUGS, d. a means to position said problem sheet to match a plurality of said situation selector switches with said plurality of illustrated logic input signal paths printed on said problem sheet e. a programmable sensor means to selectively interconnect the output terminal of at least one said PUG to at least one input terminal of any second PUG and f. said programmable sensor means comprising switching means carried by the machine and operably connected to the terminals of the PUG, operator means for said switching means carried by the said problem sheet and engagable with said switching means.

Claim 3

The machine of claim 1 wherein a PUG comprises: a. an OR gate function, b. a plurality of controllable inverter processed logic input signals to said OR gate function, c. a controllable inverter processed logic output signal of said OR gate function, d. programmable means to control said inverters, and e. said annunciator means to indicate logic output condition of said controllable inverter processed logic output signal of said OR gate function.

Claim 4

A machine of claim 2 wherein said controllable inverter is an exclusive OR gate.

Claim 5

A machine of claim 2 wherein said annunciator is a visual display.

Claim 6

A machine of claim 2 wherein said switching means comprises a photosensitive swiTch, ambient light source means for energizing said switch and wherein said printed problem sheet is of a translucent material and said operator means carried by said problem sheet comprises selective opaque portions for blocking said ambient light source means from the photosensitive switch.

Claim 7

A machine of claim 2 wherein said programmable means to control said inverters comprises a photosensitive switch and ambient light source means operably connected to each said inverter, said switch being exposed to ambient light and energized thereby and wherein said printed problem sheet is of translucent material and having opaque portions thereof for selectively blocking the ambient light from the said photosensitive switch.

Claim 8

A machine of claim 2 wherein said programmable means to control said inverters comprises a photosensitive switch and ambient light source means operably connected to each said inverter, said switch being exposed to ambient light and energized thereby and wherein said problem sheet is of opaque material and having open portions thereof for selectively blocking the ambient light from the said photosensitive switch.

Claim 9

A machine of claim 2 and including programmable means operably connected to the situation selector switches for selectively paralleling the logic signals to said PUG''S.

Claim 10

A machine of claim 1 wherein said annunciator means includes aligned rear-projection lamps projectable through said problem sheet at a desired point of an illustrated gate output.

Claim 11

A machine of claim 1 wherein the means to position said problem sheet to match a plurality of said situation selector switches with a plurality of illustrated logic input signal paths printed on said problem sheet comprises machine paper stops carried by the machine for intercepting two perpendicular edges of said problem sheet for alignment of said illustrated input and output signal paths with the situation selector switches.

Claim 12

A machine of claim 1 wherein the means to position said problem sheet to match a plurality of said situation selector switches with a plurality of illustrated logic input signal paths printed on said problem sheet comprises machine paper stops carried by the machine for intercepting two perpendicular edges of problem sheet and wherein each of said situation selector switches is provided with an annunciator lamp for alignment with said illustrated input and output signal paths provided on said problem sheet.

Claim 13

An independent machine for teaching binary logic utilizing a printed problem sheet having a plurality of illustrated logic input signal paths printed thereon, said machine comprising: a. a plurality of programmable universal gates (PUG) each PUG having at least two input terminals and one output terminal; b. annunciator means for at least one of said PUG; c. a plurality of manually operated situation selector switches to provide logic signals to the said PUG; d. means to position said problem sheet to match a plurality of said situation selector switches with said plurality of illustrated logic input signal paths printed on said problem sheet, and e. a programmable sensor means to selectively interconnect the output terminal of at least one said PUG to at least one input terminal of any second PUG; and f. an OR gate function; g. a plurality of controllable inverter processed logic input signals to said OR gate function; h. a controllable inverter processed logic output signal of said OR gate function; i. programmable means to control said inverters, and j. said annunciator means to indicate logic output condition of said controllable inverter processed logic output signal of said OR gate function; and wherein said machine includes printed circuit contacts and wherein said programmable sensor means comprises conductive dots on said problem sheet placed in contact with said printed circuit contacts.

Claim 14

An independent machine for teaching binary logic utilizing a printed problem sheet having a plurality of illustrated logic input signal paths printed thereon, said machine comprising: a. a plurality of programmable universal gates (PUG) each PUG having at least two input terminals and one output terminal; b. annunciator means for at least one of said PUG; c. a plurality of manually operated situation selector switches to provide logic signals to the said PUG; d. means to position said problem sheet to match a plurality of said situation selector switches with said plurality of illustrated logic input signal paths printed on said problem sheet, and e. a programmable sensor means to selectively interconnect the output terminal of at least one said PUG to at least one input terminal of any second PUG; and f. an OR gate function; g. a plurality of controllable inverter processed logic input signals to said OR gate function; h. a controllable inverter processed logic output signal of said OR gate function; i. programmable means to control said inverters, and j. said annunciator means to indicate logic output condition of said controllable inverter processed logic output signal of said OR gate function; and wherein said machine includes printed circuit contacts and wherein said programmable sensor means comprises conductive dots on said problem sheet placed in contact with said printed circuit contacts.

Claim 15

A machine of claim 12 including printed circuit Contacts and wherein said conductive dots comprise carbon black ink dots on said problem sheet and are placed in contact with said printed circuit contacts.

Claim 16

A machine of claim 12 including printed circuit contacts, said printed circuit contacts including a printed circuit board, one side thereof having a plurality of spaced parallel conductive strips thereon, each said strip being connected to the output terminal of a PUG, a second plurality of parallel conductive strips secured to the opposite side of the printed circuit board and being disposed transversely to the first set of conductive strips to form a matrix therebetween, each of said second conductive strips being connected to the input terminal of a PUG, contact means provided through the board at each intersection of the first conductive strips with the second conductive strips, each said contact means being operably connected to said first conductive strips whereby upon connecting said contact means with its adjacent conducting strip of the second conducting strips by means of said conductive dots the output terminal of one PUG is operably connected to the input terminal of another PUG.