| 摘要 |
PROBLEM TO BE SOLVED: To easily extract only desired data from input signals in a digital circuit. SOLUTION: This digital processing signal extraction circuit 1 integrates a noise signal into an H level by using a pulse width (t) in which a 1st monostable multivibrator 3 is set and also integrates it into the H level by using the width (t) with a NOT circuit and a 2nd monostable multivibrator 7 when an input signal di is inputted. Also, about valid data, the multivibrators 3 and 7 detect the rise and fall of the valid data, an OR circuit 11 generates an output signal C with the width (t) corresponding to the rise and fall of the valid data, and a D-flip-flop 9 defines it as an L level in a section corresponding to a noise component and transmits it as the H level between the rise and fall of valid data. |
