Assignee: Entropic Communications, Inc.

Location: San Diego, CA
No. of patents: 31

Number	Title	Issue Date
8181208	Media server and network for coaxial cable supporting legacy set top boxes A media server located in the home has video processing and storage capability. The media server receives video programming and control data from the cable plant head-end and receives status and control data from set top boxes (STBs). The media server can also recei...	05/15/2012
8179920	High efficiency preambles for communications systems over pseudo-stationary communication channels A method includes appending a preamble to a data packet and transmitting the preamble and data packet over a communication channel in the network. The preamble may be a Beacon, Admission, Broadcast, or High-Throughput Preamble. The Beacon Preamble includes the follo...	05/15/2012
8176181	Layer-2 management entity messaging framework in a network A communications system and method comprises the steps of performing at least one Layer 2 transaction comprising a plurality of wave cycles, each Layer 2 transaction including performing a first wave cycle, concatenating the received first responses from each of the...	05/08/2012
8150351	Receiver with tuner front end using tracking filters and calibration A broadband tuner includes a tracking filter with calibration to compensate for component errors and drift. The filters use off-die inductors that are preferably within a system-in-package (SIP) with other critical tuner components, which produces a highly integrate...	04/03/2012
8085802	Multimedia over coaxial cable access protocol A BCN network with BCN modems that communicate using predefined messages to establish, optimize and facilitate data communication. ...	12/27/2011
8040962	Channel response calculation in an OFDM receiver An efficient algorithm is described for use with OFDM receivers that characterizes the impulse response of a communication channel using frequency domain techniques that reduce computational and memory requirements, relative to time-domain cross-correlation methods,...	10/18/2011
7995459	Echo profile probe In an orthogonal frequency division multiplex (OFDM) communication network, a node transmits an echo profile probe to other nodes in the network. The echo profile probe is a message that allows characterization of the unique echo profile through the communication ch...	08/09/2011
7937738	Variable modulation unicast system A system is described that consists of a variable modulation unicast system that utilizes multiple modulation schemes in a cable network for unicast applications and is capable of assigning users to different channels of differing modulation schemes in the network b...	05/03/2011
7936701	Frequency scanning to form a communication network A node forms a network by scanning for an existing network. If an existing network is not found, the node operates as a network controller node of the first network and admits at least one client node to the first network. As a network controller node, the node desi...	05/03/2011
7936669	Systems and methods for flow control and quality of service Various embodiments of methods and systems for pausing and shaping data flow while supporting both parameterized and prioritized Quality of Service are disclosed. In some embodiments, a system for pausing and shaping data flow comprises an input buffer, a first paus...	05/03/2011
7936206	Transistor junction diode circuitry systems and methods Methods and apparatus for capacitive voltage division are provided, an example apparatus having an input and an output and including a first switched capacitor circuit. In some embodiments, the capacitive voltage divider includes first and second MOSFETs. A first ca...	05/03/2011
7933281	Method of bus configuration to enable device bridging over dissimilar buses Several local IEEE1394 buses are bridged together over a second bus type to create a global bus wherein each local bus node is able to address nodes across the global bus without the local nodes being aware of the bridging operation. A bridging device operates by tr...	04/26/2011
7889759	Broadband cable network utilizing common bit-loading A broadband cable network (“BCN”) for determining a common bit-loading modulation scheme for communicating between a plurality of nodes in the BCN is disclosed. The BCN may include a transmitting node within the plurality of nodes where the transmitting node is ...	02/15/2011
7821914	Method of generation and set of implementation efficient preambles for OFDM systems In one embodiment, a network node includes a lookup table configured to store one or more of the following frequency domain bit sequences: i) x010101000110xxxxxxx011000000000; ii) x1011000111000000011011110xxxxxxxxxxxxx0110111001101001010111010; iii) x00110110111110...	10/26/2010
7783958	Broadband satellite system for the simultaneous reception of multiple channels using shared iterative decoder Multiple channels of received data are processed by a multiple channel demodulation and error correction decoding engine. The statistical uncertainty of processing channels with an iterative decoder are averaged across all the channels to reduce the total processing...	08/24/2010
7746969	High definition multi-media interface A receiver for a multi-channel system such as a HDMI system is presented. In accordance with the present invention, the receiver receives one of the plurality of channels and includes an analog portion, a digital-to-analog converter, and a digital control block that...	06/29/2010
7738355	Packet data transmission with optimum preamble length In a communication network, a sending node transmits a message with a multisegment preamble and data to a receiving node. The receiving node calculates characteristics of the sending unit, channel, or transmitted signal by processing preamble segments. Once an unkno...	06/15/2010
7724639	Method of bit allocation in a multicarrier symbol to achieve non-periodic frequency diversity In an orthogonal frequency division multiplex (OFDM) communication system, data bits are assigned to several carriers to create frequency redundancy in the transmitted waveform. Uniformly spaced carriers occupy the frequency band of the OFDM signal. Multipath nulls ...	05/25/2010
7714760	Apparatus and methods for direct quadrature sampling Methods and apparatuses are provided for performing direct quadrature sampling. One method for sampling quadrature baseband components of a bandpass signal includes receiving a bandpass signal, sampling the bandpass signal using a first sampling clock and a second s...	05/11/2010
7676199	Impedance control for signal interface of a network node The terminating impedance of a networked device in a wired communication channel is controlled to avoid an impedance discontinuity when power is applied and removed from the node or other event occurs that would change the impedance of the signal interface. When the...	03/09/2010
7613234	Near-end, far-end and echo cancellers in a multi-channel transceiver system A transceiver according to the present invention receives data from a plurality of frequency separated transmission channels from a complementary transmitter and includes an interference filter for correcting for interference from transmitters other than the complem...	11/03/2009
7594249	Network interface device and broadband local area network using coaxial cable A local area network uses coaxial cable wiring for interconnection of terminal devices. A frequency selective network interface device is placed at the building point of entry or another point in the wiring to reflect network signals transmitted by terminal devices ...	09/22/2009
7590168	Low complexity high-speed communications transceiver A communication system is disclosed that allows high data-rate transmission of data between components. N-bit parallel data is transmitted in K-frequency separated channels on the transmission medium so as to fully take advantage of the overall bandwidth of the tran...	09/15/2009
7573822	Broadband network for coaxial cable using multi-carrier modulation 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 a...	08/11/2009
7428238	Broadband network bridging various wiring channels 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. ...	09/23/2008
7428222	Method of bus configuration to enable device bridging over dissimilar buses Several local IEEE1394 buses are bridged together over a second bus type to create a global bus wherein each local bus node is able to address nodes across the global bus without the local nodes being aware of the bridging operation. A bridging device operates by tr...	09/23/2008
7295518	Broadband network for coaxial cable using multi-carrier modulation 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 a...	11/13/2007
7251703	Method of time stamping to enable device bridging over dissimilar buses Several local IEEE1394 buses are bridged together over a second bus type to create a global bus wherein each local bus node is able to address nodes across the global bus without the local nodes being aware of the bridging operation. A bridging device operates by tr...	07/31/2007
7154957	Power spectrum shaping to reduce interference effects in devices sharing a communication medium A broadband digital communication network transmits a signal with a shaped power spectrum to minimize interference with devices that share the communication medium. In one embodiment using coaxial wiring, devices such as cable converters and televisions that are not...	12/26/2006
7151575	Wireless extension for cable television signals A wireless link provides an extension to cable television signals for a television receiver that does not have access to a coaxial cable. Analog and digital cable channels are processed and transmitted over the wireless link. Security of the signal is provided by tr...	12/19/2006
7130576	Signal selector and combiner for broadband content distribution 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 bo...	10/31/2006

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Assignee: Entropic Communications, Inc.