Title:
METHOD AND SYSTEM FOR TRANSMITTING BINARY DIGITAL SIGNAL
Document Type and Number:
Japanese Patent JP2993817
Kind Code:
B2
Abstract:
PURPOSE: To simplify the circuit configuration and to make the manufacturing cost low by generating and transmitting a binary digital signal having at least a leading part rising steeply at a 1st signal level and a trailing signal part descending steeply at a 2nd signal level.
CONSTITUTION: A digital signal using a discharge pulse received via a reception terminal RET from a transmitter is inputted to a resonance amplifier 11 having a 10MHz of resonance frequency and a resonance amplifier 12 having a resonance frequency of 5MHz in a pulse detection and polarity discrimination circuit JU1 of a discharge pulse receiver. Since the sent digital signal includes a steep leading part or a steep trailing part, the signal includes a frequency component up to a very high frequency, and signals SG11, 12 obtained by tuning with resonance amplifiers 11, 12 are signals attenuated after the signal level is increased. Then the signal of a predetermined threshold level or over is waveform- shaped as a pulse signal and a binary digital signal is discriminated based on the relation of phase.
Inventors:
Atsushi Nishizawa
Application Number:
JP10072293A
Publication Date:
December 27, 1999
Filing Date:
April 27, 1993
Export Citation:
Assignee:
Atsushi Nishizawa
International Classes:
H03M5/16; H03M5/12; H04L13/10; H04L25/49; (IPC1-7): H03M5/12; H04L13/10; H04L25/49
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)
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