Abstract: An electronic apparatus is disclosed. The electronic apparatus includes a communicator configured to receive a first signal from among a plurality of signals and a second from among the plurality of signals from a server through different communication methods and a processor configured to identify a first bandwidth of the first signal from among a plurality of bandwidths and a second bandwidth of the second signal from among the plurality of bandwidths, transmit information regarding a selected bandwidth from among the plurality of bandwidths, and control the communicator to receive one of the plurality of signals corresponding to the selected bandwidth.

Abstract: An electronic apparatus is disclosed. The electronic apparatus includes a communicator configured to receive a first signal from among a plurality of signals and a second from among the plurality of signals from a server through different communication methods and a processor configured to identify a first bandwidth of the first signal from among a plurality of bandwidths and a second bandwidth of the second signal from among the plurality of bandwidths, transmit information regarding a selected bandwidth from among the plurality of bandwidths, and control the communicator to receive one of the plurality of signals corresponding to the selected bandwidth.

Abstract: A power management system of a set-top box includes a display module, connected to the set-top box via a video terminal, for transmitting video terminal information, produced by video terminal selection of a user, to the set-top box; and the set-top box, when the video terminal information is received from the display module, allowing the detected video terminal, corresponding to the video terminal information, to output video signals, and preventing other video terminals from outputting video signals. The power consumption of the set-top box can be reduced by receiving the information of a connected video terminal from a TV and controlling the other video terminals based upon the information.

Abstract: A method of utilizing a bidirectional amplifier in a cable hybrid fiber and coax (HFC) and a cable modem utilizing an upstream signal. The invention provides an upstream pilot signal from the cable modem and automatically controls the gain of the signal so that the headend receives a constant level upstream pilot signal from each terminal. A cable modem for bidirectional services in the HFC network has a saw filter, a mixer & AGC, a LPF, a tuner, a gain controller, a downstream demodulator, an upstream modulator, a media access controller (MAC), a CPU, a programmable attenuator, a pilot signal generator and a switch connecting the tuner and the pilot signal generator under the control of the CPU.

Abstract: A method of utilizing a bidirectional amplifier in a cable hybrid fiber and coax (HFC) and a cable modem utilizing an upstream signal. The invention provides an upstream pilot signal from the cable modem and automatically controls the gain of the signal so that the headend receives a constant level upstream pilot signal from each terminal. A cable modem for bidirectional services in the HFC network has a saw filter, a mixer & AGC, a LPF, a tuner, a gain controller, a downstream demodulator, an upstream modulator, a media access controller (MAC), a CPU, a programmable attenuator, a pilot signal generator and a switch connecting the tuner and the pilot signal generator under the control of the CPU.