| 摘要 |
A signal-receiving conductor pattern has a number of separate leads (LM1...) which cross those in a signal-emitting conductor pattern (LS1...). Signal generating components feed electrical signals to the leads in the signal-emitting conductor pattern, with monitors probing the signals capacitively imposed on the leads in the signal-reception conductor pattern. For prodn., a pulse generator (PG) is employed, which for reading the topological pattern applies a voltage pulse to the signal emitting conductor pattern, with a time delay between consecutive pulses. The monitor comprises for each of the leads (LM1...) in the signal-receiving conductor pattern, components (A1,SR1) for detection and storage of signals capacitively transmitted to the leads in the form of a pulse train. Comparative components (A1-A5) compare the signal levels on the leads in the signal-receiving pattern with a reference level (Uc). (Provisional basic advised week 87/08) |
