| 摘要 |
<p>A detector of predetermined patterns of Manchester encoded data signals (PRICHL) in which the voltage levels of the half-bit cells of "n" sequential Manchester bit cells, where "n" is an integer greater than zero, are clocked into a shift register (12-1, 12-2), the pattern of 2 "n" voltage levels of 2 "n" half-bit cells of the "n" sequential Manchester bit cells stored in the register at any given time are examined by a programmable logic array (18) which produces an output signal when the pattern of outputs of the shift register corresponds to the predetermined patterns (Fig. 1).</p> |
