A remote control apparatus for use with an equipment which includes a master apparatus and a slave apparatus remotely located from the master apparatus. The master apparatus transmits a control signal to the slave apparatus so as to remotely control the slave apparatus. The master apparatus has a light-transmitting...http://www.google.fr/patents/US5917630?utm_source=gb-gplus-shareBrevet US5917630 - Controlling apparatus for remote control operation
Controlling apparatus for remote control operation
