| 摘要 |
<p>The device enables transmission, without contact or electrical link, to a separate device having information transmitted to it from a further device, known as dynamic coding. The device allows a programming head (coder), to influence without any electrical connection, a programmable head to write a code, the latter being able to influence, also without electrical connection, the programming head or a read head to reform the written code. Parallel information at the programming head is translated into series information which is transmitted to the programmable head by the opening and closing of a transistor switch controlling a resonant circuit. The programmable head is put into a writing node only when a received code is verified as correct. The resonant circuit comprises a spiral on a p.c.b. and a capacitor with a static switch consisting of a transistor.</p> |
