Electronic multiple-valued register
AssigneeMiyagi National College of Technology
InventorShinji Karasawa
Life of this patent
Estimating the term…
Abstract
An electric multiple-valued register for electrically maintaining a multiple-valued digital signal of a ternary value of (0, 1/2, 1), quaternary value of (0, 1/3, 2/3, 1) or quinternary value of (0, 1/4, 2/4, 3/4, 1) instead of a binary digital signal such that 1 digit is of 0 or 1 is realized by inserting an element having a stair shaped voltage-current characteristic into a coupling circuit of a conventional flip-flop circuit. It may be used for a quantization circuit with the aid of a step characteristic, a multivalued memory, a multivalued register, a multivalued loop memory, a multivalued pattern matching circuit, a voice recognition divide, pattern recognition device, or a associative memory device.
Claims15
An electronic multiple-valued register comprising:
- a first inverted amplifier having an input and an output;
- a second inverted amplifier having an input and an output;
- and
- a first electronic element having a first terminal side connected to said output of said first inverted amplifier and a second terminal side connected to said input of said second inverted amplifier and a second electronic element having a first terminal side connected to said output of said second inverted amplifier and a second terminal side connected to said input of said first inverted amplifier, said first and second electronic elements each having a substantially stair-shaped voltage-current characteristic so as to provide more than two stable levels.
An electronic element having a substantially stair-shaped voltage-current characteristic comprising:
- a first leg comprising a first Zener diode connected in series with a first constant current diode, said first Zener diode being biased with respect to said first constant current diode;
- a second leg comprising a second Zener diode connected in series with a second constant current diode, said second Zener diode being biased with respect to said second constant current diode;
- and
- a third leg comprising a third constant current diode,
- said first, second and third legs being connected in parallel.
An electronic multiple-value register comprising:
- a flip-flop circuit having an input and an output, and including first and second inverted amplifiers each having an input and an output;
- and
- a first electronic element having a first terminal side connected to said output of said first inverted amplifier and a second terminal side connected to said input of said second inverted amplifier and a second electronic element having a first terminal side connected to said output of said second inverted amplifier and a second terminal side connected to said input of said first inverted amplifier, said first and second electronic elements each having a substantially stair-shaped voltage-current characteristic so as to provide more than two stable levels.
Dependencies are inferred from the claim text.