A remote control apparatus for a digital cable television system and a method thereof which are capable of inserting and transmitting a control data into each channel of a head end (HE) which is an output unit of a transmitting unit and modulating a state checking data of a receiving unit for a VSB/QAM...http://www.google.fr/patents/US6211926?utm_source=gb-gplus-shareBrevet US6211926 - Remote control apparatus for digital cable television system and method thereof
Remote control apparatus for digital cable television system and method thereof
