Document Type and Number:
Japanese Patent JPH0511709
Kind Code:
B2
Abstract:
PURPOSE:To detect whether a key is continuously depressed or redepressed if the same instruction code is continuously received in the reception side, by changing the pulse width of an end pulse in the transmission side in accordance with the number of times of transmission operation. CONSTITUTION:The number of times of key redepression is counted by a one-bit or plural-bit counter in the transmission side to generate the end pulse having a pulse width corresponding to the counted value in 1 : 1, and this end pulse is transmitted following a custom code 8 and an instruction code 9. In the reception side, the custom code 8, the instruction code 9, and an end pulse 11a, 11b, or 11c are received and decoded, and redepression of the key is discriminated to execute the instruction for a controlled system if the custom code 8 coincides with a prescribed code and the waveform of the end pulse is different from preceding that. If the waveform of the end pulse coincides with preceding received that, redepression of the key is not discriminated and the instruction is not executed.
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Inventors:
HONGO KATSUNOBU
SUDA SHINJI
SHICHINOHE DAISUKE
KOBAYASHI HIROSHI
SUDA SHINJI
SHICHINOHE DAISUKE
KOBAYASHI HIROSHI
Application Number:
JP10008786A
Publication Date:
February 16, 1993
Filing Date:
April 30, 1986
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H04L25/38; H04L1/00; H04Q9/00; H04Q9/14; H04Q9/16
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