| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surgical instrument that ensures safe data transmission in a high-interference environment of an active RF surgical apparatus as well as in a water jet, argon plasma and cryosurgical apparatus, endoscopes, etc. <P>SOLUTION: A differential transmission technique is selected. One or more conductor pairs 22, 23 are utilized. A signal is transmitted to one conductor of the conductor pairs, and an inverted signal is transmitted to the other. A difference between the two signals is obtained to acquire an actual data signal on the receiving side. If interference fedback from the environment act on a data transmission link, i.e., a cable 13, the two conductors are in spatial proximity and twisted optionally, so that the interference acts on the two conductors in the same way. These interferences are canceled out as a result of the subtraction performed on each receiver. <P>COPYRIGHT: (C)2013,JPO&INPIT |
