Digital coaxial cable LAN
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Abstract
The invention relates to a coaxial cable local area network (LAN) for digitally communicating client generated data between clients of the cable LAN. The cable LAN has adapters in communication with both the clients and other adapters of the cable LAN. Connected through coaxial cable, these adapters generate and communicate data transmitting signals that take advantage of the operating frequency spectrum of the coaxial cable so as to not interfere with the operating frequency of the client data within the coaxial cable. Other features are disclosed.
178 Citations
84 Claims
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1-26. -26. (canceled)
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27. An interface component for communicating between a client device and a local area network (LAN), the interface component comprising:
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a universal client interface to communicate a signal between a cable LAN adapter and the client device; and
the cable LAN adapter comprising;
a broadband application specific integrated circuit (ASIC) to encode and to modulate the signal received from the universal client interface and to decode and to demodulate the signal received from a radio frequency and mixed signal, section (RF&
MSS);
the RF&
MSS to convert the encoded and modulated signal received from the ASIC to a carrier modulated digital signal with a transmission frequency, the transmission frequency greater than a signal cut-off frequency defined for conventional coaxial cable services, and the RF&
MSS to convert the carrier modulated digital signal received from a transmission switch to the encoded and modulated signal transmitted to the ASIC; and
the transmission switch to transmit the carrier modulated digital signal through a coaxial cable to at least one other cable LAN adapter and to transmit the carrier modulated digital signal to the RF&
MSS. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A method for transmitting information from a client device to a local area network (LAN), the method comprising:
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communicating a signal from the client device to a cable LAN adapter with a universal client interface;
encoding the signal in the cable LAN adapter;
modulating the encoded signal in the cable LAN adapter;
converting the encoded and modulated signal to a carrier modulated digital signal in the cable LAN adapter, the carrier modulated digital signal having a transmission frequency, the transmission frequency greater than a signal cut-off frequency defined for conventional coaxial cable services; and
transmitting the carrier modulated digital signal through a coaxial cable to at least one other cable LAN adapter. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67)
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68. An apparatus for transmitting information from a client device to a local area network (LAN), the apparatus comprising:
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a universal client interface communicating a signal from the client device to a cable LAN apparatus; and
the cable LAN apparatus comprising;
an encoding means for encoding the signal, the encoding means converting the signal to an encoded signal;
a modulating means for modulating the encoded signal, the modulating means converting the signal to an encoded and modulated signal;
a converting means for converting the encoded and modulated signal to a carrier modulated digital signal having a transmission frequency, the transmission frequency greater than a signal cut-off frequency defined for conventional coaxial cable services; and
a transmitting means for transmitting the carrier modulated digital signal through a coaxial cable to at least one other cable LAN apparatus. - View Dependent Claims (69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84)
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Specification