Entropic Communications, Inc.

Conexant Systems, Inc.

Bridgewave Communications, Inc.

Ladd El Wardani

Itzhak Gurantz

Anton Monk

Brett Bernath

Ron Porat

Michael William Landry

Yusuf Ozturk

Magnus Berggren

Ron Lee

Wee-Peng Goh

Eliezer Pasternak

A BCN network with BCN modems that communicate using predefined messages to establish, optimize and facilitate data communication.

Multimedia over coaxial cable access protocol

A BCN network with BCN modems that enable network wired devices to communicate over a typical home coaxial network that may include passive splitters and different types of coaxial cable.

Broadband local area network

A broadband local area data network uses coaxial cable wiring for interconnection of terminal devices. Orthogonal frequency division multiplexing (OFDM) with bit loading is used to overcome channel impairments and provide a path for terminal devices to transmit to and receive from other terminal devices. Probe messages are sent between devices to characterize the communication channel and determine optimum bit loading. The data network shares the cable spectrum with other services and uses frequency bands not used by other services. Adaptive power control can be used to maintain signal to noise ratio in a communication between terminal devices. Frequency coordination can be used to avoid interference between the LAN communications and other services transmitted on the cable.

Broadband network for coaxial cable using multi-carrier modulation

In a satellite receiving system, program channels are selected from one or more broadband signals and combined with other selected channels and transmitted from a first unit, for example an outdoor unit, to a second unit, for example a gateway, server, or set-top box, using a single cable. Channels can be selected by digitizing the broadband signal then digitally filtering to isolate the desired channels. The outputs of several LNBs can be selected and combined into one signal. Multiple set-top boxes can receive independent signals over a single cable from the outdoor unit.

Signal selector and combiner for broadband content distribution

Signal selector and combiner system for broadband content distribution

A system and method for communicating signals over a noisy channel is provided wherein an input signal may be sampled and modulated to make the signal more noise insensitive. In accordance with one embodiment, of the invention, an signal code modulation (SCM) scheme may be used wherein digital and analog signals representing the original signal are generated. In another embodiment, an original modulated signal may be demodulated and then remodulated using a more robust modulation scheme. The system may be used to a variety of applications including wireless internet access.

Signal communications system and method for noisy links

A network utilizing two or more wiring systems with a bridging function to provide a signal interconnect for communication within and between wiring systems. The bridging function can translate the network signals to a different frequency.

Broadband network bridging various wiring channels

A clock smoothing circuit generates a smoothed clock signal from a gapped clock signal having unevenly spaced pulses separated by gaps that result from the removal of data bits and from a reference clock signal having evenly spaced pulses that create a predetermined reference frequency. A smoothing element is coupled to the input elements to receive the gapped clock signal and the reference clock signal. In one embodiment, the smoothing element generates a smoothed clock signal having one pulse for each of the pulses in the gapped clock signal and having a frequency that is greater than one-half of the predetermined reference frequency. Each pulse in the smoothed clock signal is synchronized with a pulse in the reference clock signal. In another embodiment, the smoothing element includes an accumulator that counts the pulses of the reference clock signal, a modulo signal that resets the accumulator to a particular reset value when a predetermined number of pulses M is reached, and an output element that produces one pulse of the smoothed clock signal for each pulse of the reference clock signal on which the modulo element does not reset the accumulator.

Growing community of inventors

La Jolla, CA, United States of America

Ladd El Wardani