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Patent Searching and Data


Title:
INTERFACE CIRCUIT
Document Type and Number:
Japanese Patent JP3022816
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To reduce the state change of a transmission signal and to easily transmit the data by sending the state transition time of the transmission signal to a transmission line in response to the transmission data value, converting the received state transition time of the transmission signal into the pulse signal width, and allocating the difference of the pulse signal width to the transmission data value to reproduce the transmission data value of a transmitter.
SOLUTION: The transmission signal of output of a driver part 1 is supplied to a receiver part 2, and the part 2 converts the received transmission signal and outputs the reception data. The reception data can be set at the multi-value of (m+1) pieces in all of 0...m, and the state transition time of the transmission signal is corresponding to the transmission data value. The pulse signal of output of a pulse generation part 21 of the part 2 is equal to a signal that is obtained by extracting the transition time of state change of the transmission signal, i.e., an input as the pulse signal width. The reception data are equal to the output of a data decision part 22 and obtained by allocating the value of 0...m to the pulse signal width extracted from the state transition time of the transmission signal and reproducing the transmission data.


Inventors:
Yoichi Kozeki
Shichigosan
Application Number:
JP20487997A
Publication Date:
March 21, 2000
Filing Date:
July 30, 1997
Export Citation:
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Assignee:
Yamagata NEC Corporation
International Classes:
H04L29/10; H03M5/08; H04L25/49; (IPC1-7): H04L29/10; H03M5/08; H04L25/49
Domestic Patent References:
JP57183159A
JP4911054A
JP4852164A
JP5059018A
JP936922A
JP367105B1
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)