Broadband multi-drop local network, interface and method for multimedia access
View Patent ↗Broadband multi-drop local network, interface and method for multimedia access. A local network architecture include a wired bus coupleable directly to an external data network terminal and configured for carrying broadband packetized data traffic over a frequency spectrum uninterrupted by other defined data channels or services; and one or a plurality of network transceivers operable individually for coupling an addressable network device processing a defined class of information to the bus wherein each network appliance is configured for and further operable for providing communication interfacing of the class of information of each addressable network appliance with the packetized IP data traffic on the wired bus.
1. An interface transceiver for coupling an addressable network device to a broadband wireline local network, comprising:
a broadband modem, coupled via a physical interface to said broadband wireline local network, for demodulating incoming broadband packetized data from said network and modulating data output from said addressable network device to form broadband packetized data to said broadband wireline local network;
a network controller, coupled between said broadband modem and a communication interface with said addressable network device, for performing multimedia access control (MAC) with error correction, carrier sense multiple access with collision detection (CSMA/CD), and quality of service (QoS) affecting data traffic through said transceiver; and
a communication processor, disposed integrally with said communication interface with said addressable network device and configured to process data traffic between said network controller and said addressable network device.
2. The apparatus of claim 1 , wherein said interface transceiver further comprises an analog-to-digital converter having an addressable output and an input for analog signals for sourcing analog signals.
3. The apparatus of claim 1 , wherein said interface transceiver further comprises a digital-to-analog converter having an addressable input and an output for analog signals.
4. The apparatus of claim 1 , wherein said broadband modem provides modulation and demodulation of said packetized data using multiple subcarrier modulation.
5. The apparatus of claim 1 , wherein said broadband modem utilizes modulation selected from the group consisting of multiple subcarrier modulation, carrierless amplitude phase (CAP) modulation, discrete multitone (DMT) modulation, quadrature amplitude modulation (QAM), and orthogonal frequency division multiplexing (OFDM).
6. The apparatus of claim 1 , wherein said network controller comprises:
a multimedia access control (MAC) unit;
a carrier sense multiple access/collision detect (CSMA/CD) unit; and
a quality of service (QoS) unit, collectively configured for processing data traffic through said interface transceiver according to respective protocols associated with each said respective MAC, CSMA/CD and QoS units.
7. The apparatus of claim 1 , wherein said communication processor comprises:
a computing device configured to provide a secure communications link between said interface transceiver and at least one other said addressable network device; and
a memory having stored therein functional routines selected from the group consisting of protocols for providing real-time, packetized multimedia data traffic on said broadband wireline local network, programs for encryption/decryption of said data traffic, programs for packetization/depacketization and programs for controlling security protocol.