Receiver for pulses of different widths
AssigneeNippon Steel Corporation
InventorTetuya Sugai
Life of this patent
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Abstract
A data transmission system for transmitting data and subsidiary information by means of pulses of different widths corresponding to a multiple of a signal propagation time delay of a NAND gate. The system makes it possible to simplify the construction of the data transmission device to a considerable degree and at the same time to transmit data at a high speed, and includes a variety of circuits for generation and demodulation of the pulses.
Claims1
A width-modulated pulse demodulator system for receiving pulses of different widths and decoding them, said demodulation system comprising an arrangement of series connected NAND gates formed in an integrated circuit, and a control circuit including additional NAND gates, said series arrangement receiving the pulses of different widths and passing said pulses through said series arrangement of NAND gates, the output level of each NAND gate of said series arrangement at a given time after receiving a particular pulse being dependent upon the width of the particular pulse received, each of said additional NAND gates being respectively interconnected to the output of predetermined NAND gates from said series arrangement which have identical levels at given times after receiving a pulse, whereby said control circuit produces a signal depending upon the outputs of predetermined NAND gates.
Dependencies are inferred from the claim text.