Proximity Sensor

Capacitive proximity sensors pick up the miniscule charge on the human body. Usually they have one of two types of front end: a sensitive transistor pre-amplifier, or an RC oscillator with a very small value of C. Whatever the case may be, their front ends use active components. I today submitted a capacitive proximity sensor to publishers, which almost entirely strips out the front end -- using no active components in this section of the design. OBSERVATION: My method is better than existing methods, and if published, will undoubtedly change capacitive proximity sensors forever. Watch this space.