Circuits and methods for generating signals representing the division or multiplication of two analog signals are incorporated into optical triangulation distance measurement systems. In one embodiment one of two analog voltage signals is used to generate a current signal. A capacitor is charged by the...http://www.google.es/patents/US6549058?utm_source=gb-gplus-sharePatente US6549058 - Signal processing circuits for multiplication or division of analog signals and optical triangulation distance measurement system and method incorporating same
Signal processing circuits for multiplication or division of analog signals ...
