Ningbo University

Weitong Tang

Pengjun Wang

Qian Wang

A carbon nanotube-based ternary comparator including a first decoder, a second decoder, and a comparison circuit. The comparison circuit includes: a first comparison unit for producing a greater-than-or-equal-to signal, and a second comparison unit for producing a less-than-or-equal-to signal. A first two-bit ternary signal is input into the signal input terminal of the first decoder. A first three-bit binary signal and a phase inverted signal of the first three-bit binary signal are output from a signal output terminal of the first decoder. A second two-bit ternary signal is input into the signal input terminal of the second decoder. A second three-bit binary signal and a phase inverted signal of the second three-bit binary signal are output from the signal output terminal of the second decoder.

Carbon nanotube-based ternary comparator

A carbon nanotube field-effect transistor encoder, based on a binary circuit which includes: a first inverter, a second inverter, a third inverter, a first three-input NAND gate, a second three-input NAND gate, a third three-input NAND gate, a fourth three-input NAND gate, a fifth three-input NAND gate, a sixth three-input NAND gate, a seventh three-input NAND gate, a first two-input NAND gate, a second two-input NAND gate, a third two-input NAND gate and a two-input AND gate. When the input end of the encoder inputs three-bit binary input signals, the three-bit binary input signals are first processed by the binary circuit; and the processed signals are input into the ternary circuit which includes a first CNFET NAND gate, a second CNFET NAND gate, a first CNFET NOR gate, a second CNFET NOR gate, a fourth inverter and a fifth inverter to be converted into ternary signals for transmission.

Growing community of inventors

Ningbo, China

Weitong Tang