Patent ID: 8154997

Claim:
A communication signal processing apparatus for a repeater, comprising an interface for receiving communication signals of at least two different communication services from an outside in a multiplexed manner and separately outputting the communication signals, and a communication signal processor for combining a pair of different communication signals, separately input from the interface, into a single digital signal, and converting the single digital signal into a frame, serializing the frame, and outputting the frame to the outside; wherein the interface comprises a downstream interface that is equipped with an input signal interface for separately receiving communication signals of at least two different communication services from the outside and separately outputting the signals; and wherein the communication signal processor comprises a downstream signal processor that is equipped with a combiner for combining the two different digital communication signals, which form a pair and are separately input from the input signal interface of the interface, into a single digital signal, and outputting the single digital signal, a mapper for temporarily storing the digital signal input from the combiner and outputting the digital signal, a main frame unit for converting the digital signal, temporarily stored in the mapper, into a frame and outputting the frame, a frame management control unit for controlling operation of the main frame unit, a scrambler for scrambling the data frame input from the main frame unit and outputting the scrambled data frame, and a serializer for serializing the output signal input from the scrambler and outputting the serialized signal to the outside, wherein the communication signal processor is supplemented with an upstream signal processor that is equipped with a deserializer for receiving the serialized digital signal from the outside, and parallelizing and outputting the serialized signal, a descrambler for descrambling and outputting the output signal input from the deserializer, a main deframe unit for deframing and outputting the data frame input from the descrambler, a deframe management control unit for controlling operation of the main deframe unit, a demapper for temporarily storing and outputting the digital signal input from the main deframe unit, and a digital filter for separating the signal digital signal, temporarily stored in the demapper, into two different digital communication signals, and separately outputting the digital communication signals; and the interface is supplemented with an upstream interface that is equipped with an output signal interface for separately receiving at least two different digital communication signals from the upstream signal processor and separately outputting the digital signals to the outside.