| 摘要 |
<p>ASYNCHRONOUS TRANSMISSION SYSTEM FOR BINARY-CODED INFORMATION An asynchronous transmission system for binary coded information is disclosed. According to this system, in a transmitting terminal (A), when successive data of the same code in asynchronous data lasts for a predetermined period (T1) of time, a refresh pulse the polarity of which is opposite to the successive data is added to a transmission signal. However, the addition of such a refresh pulse to the transmission signal is inhibited for a predetermined period (T2) of time before a change of data. In a receiving terminal (B), a pulse, the width of which is larger or equal to a minimum period of data, and a pulse, the width of which is smaller or equal to a pulse-width (T0) of a refresh pulse, can be discriminated by a pulse-width discrimination circuit (6). As a result, such a refresh pulse is not present in the output signal of the pulse-width discrimination circuit. Thus, asynchronous data is restored.</p> |
