General Instrument Corporation

George S Karpati

Robert L Howald

Provided is a device for use with a headend, a household and an amplifier. The headend is able to provide signals within a high-frequency band f. The household is able to provide signals within a low-frequency band f, and to provide signals within a super-high-frequency band f, where f&#x3c;f&#x3c;f. The device includes a splitter, a diplexer and a combiner. The splitter is arranged to receive the signals within the high-frequency band fand to split the signals within the high-frequency band finto a first signal portion within the high-frequency band fand a second signal portion within the high-frequency band f. The diplexer is operable to pass the second signal portion within the high-frequency band fto the household, to pass the signals within the low-frequency band fto the splitter and to pass the signals within the super-high-frequency band f. The combiner is operable to provide, to the amplifier, the first signal portion within the high-frequency band fand the signals within the super-high-frequency band f.

Return feed forward

A method and apparatus is provided for installing an optical cable link between first and second communication access points is provided. The method begins by securing a first end of an optical cable to the first communication access point to establish optical connectivity therebetween. A second end of the optical cable is secured to the second communication access point to establish optical connectivity therebetween. Prior to securing the second end of the optical cable, an optical probe signal is launched into the first or second end of the optical cable. A portion of the optical probe signal is received which has traversed at least a part of the cable and in which information concerning optical characteristics of the optical cable is embodied. An alert indicative of cable tampering is generated if the received portion of the optical probe signal changes beyond a threshold limit.

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Quakertown, PA, United States of America

George S Karpati