Patents by Inventor Itzhak Gurantz
Itzhak Gurantz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20110209186Abstract: 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 based on a feedback signal received in response to a transmitted probe signal. The system may also, in response to the feedback signal from a remote device in the network, assign a channel from a plurality of channels having differing carrier frequencies and modulation schemes to the remote device and may also modify the carrier frequencies of the channels.Type: ApplicationFiled: May 2, 2011Publication date: August 25, 2011Applicant: ENTROPIC COMMUNICATIONS, INC.Inventor: Itzhak GURANTZ
-
Publication number: 20110194636Abstract: 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.Type: ApplicationFiled: April 20, 2011Publication date: August 11, 2011Applicant: ENTROPIC COMMUNICATIONS, INC.Inventors: Anton MONK, Brett BERNATH, Itzhak GURANTZ, Ladd EL WARDANI, Ron PORAT
-
Patent number: 7937738Abstract: 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 based on a feedback signal received in response to a transmitted probe signal. The system may also, in response to the feedback signal from a remote device in the network, assign a channel from a plurality of channels having differing carrier frequencies and modulation schemes to the remote device and may also modify the carrier frequencies of the channels.Type: GrantFiled: August 23, 2004Date of Patent: May 3, 2011Assignee: Entropic Communications, Inc.Inventor: Itzhak Gurantz
-
Publication number: 20110035647Abstract: 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 power required of the decoding engine compared to processing each channel with a separate engine. A set of input buffers holds blocks of data for each channel needing decoding. A quality measure is computed on each input block to set the priority and iteration allocation of decoding in the common decoder. The input RF signal is digitized by a broadband tuner that processes some or all of the channels to feed the multiple channel demodulator and decoder. Multiple decoded video data streams are output.Type: ApplicationFiled: August 24, 2010Publication date: February 10, 2011Applicant: ENTROPIC COMMUNICATIONS, INC.Inventors: Donald Brian Eidson, Arndt Joseph Mueller, Joseph B. Soriaga, Itzhak Gurantz
-
Patent number: 7783958Abstract: 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 power required of the decoding engine compared to processing each channel with a separate engine. A set of input buffers holds blocks of data for each channel needing decoding. A quality measure is computed on each input block to set the priority and iteration allocation of decoding in the common decoder. The input RF signal is digitized by a broadband tuner that processes some or all of the channels to feed the multiple channel demodulator and decoder. Multiple decoded video data streams are output.Type: GrantFiled: November 1, 2006Date of Patent: August 24, 2010Assignee: Entropic Communications, Inc.Inventors: Donald Brian Eidson, Arndt Joseph Mueller, Joseph B. Soriaga, Itzhak Gurantz
-
Publication number: 20090296611Abstract: 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.Type: ApplicationFiled: August 10, 2009Publication date: December 3, 2009Applicant: ENTROPIC COMMUNICATIONS INC.Inventors: Anton MONK, Brett BERNATH, Itzhak GURANTZ, Ladd EL WARDANI, Ron PORAT
-
Publication number: 20090290659Abstract: A channel stacking system includes first and second downconverting stages, first and second analog to digital converters, and a digital switching and signal processor. The first downconverting stage includes a first downconverter circuit having an input for receiving a first RF input signal which includes a multitude of first channels. The first downconverter circuit frequency downconverts the first RF input signal to a first IF signal which includes the multitude of first channels. The first analog-to-digital converter converts the first IF signal to a first digital IF signal. The second downconverter stage includes a second downconverter circuit having an input for receiving a second RF input signal which includes a multitude of second channels. The second downconverter circuit frequency downconverts the second RF input signal to a second IF signal including said multitude of second channels.Type: ApplicationFiled: March 31, 2009Publication date: November 26, 2009Applicant: Entropic Communications, Inc.Inventors: Branislav Petrovic, Itzhak Gurantz, Keith Bargroff
-
Patent number: 7594249Abstract: 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 back into the building distribution to be received by other terminal devices. By reflecting network upstream signals back into the building as downstream signals, the network interface provides a path for terminal devices to transmit to and receive from other terminal devices.Type: GrantFiled: July 21, 2001Date of Patent: September 22, 2009Assignee: Entropic Communications, Inc.Inventors: Itzhak Gurantz, Ladd ElWardani, Anton Monk, Brett Bernath, Magnus Berggren
-
Patent number: 7573822Abstract: 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.Type: GrantFiled: November 12, 2007Date of Patent: August 11, 2009Assignee: Entropic Communications, Inc.Inventors: Anton Monk, Brett Bernath, Itzhak Gurantz, Ladd El Wardani, Ron Porat
-
Patent number: 7542715Abstract: 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.Type: GrantFiled: October 26, 2006Date of Patent: June 2, 2009Assignee: Entropic Communications Inc.Inventors: Itzhak Gurantz, Ladd El Wardani, Michael Landry
-
Patent number: 7522875Abstract: 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.Type: GrantFiled: December 31, 2004Date of Patent: April 21, 2009Assignee: Entropic Communications Inc.Inventors: Itzhak Gurantz, Ladd El Wardani, Michael Landry
-
Patent number: 7499397Abstract: 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.Type: GrantFiled: November 11, 2007Date of Patent: March 3, 2009Assignee: Entropic Communications Inc.Inventors: Anton Monk, Brett Bernath, Itzhak Gurantz, Ladd El Wardani, Ron Porat
-
Patent number: 7477871Abstract: 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.Type: GrantFiled: December 31, 2004Date of Patent: January 13, 2009Assignee: Entropic Communications Inc.Inventors: Itzhak Gurantz, Ladd El Wardani, Michael Landry
-
Patent number: 7428238Abstract: 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.Type: GrantFiled: August 9, 2002Date of Patent: September 23, 2008Assignee: Entropic Communications Inc.Inventors: Ladd El Wardani, Itzhak Gurantz, Anton Monk, Brett Bernath, Michael Landry
-
Patent number: 7295518Abstract: 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.Type: GrantFiled: December 18, 2002Date of Patent: November 13, 2007Assignee: Entropic Communications Inc.Inventors: Anton Monk, Brett Bernath, Itzhak Gurantz, Ladd El Wardani, Ron Porat
-
Patent number: 7154957Abstract: 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 part of the network share the communication medium and are exposed to the network signal. Power levels across the network band are selected to reduce interference in the non-networked devices. One area of susceptibility is the tuner of cable channel receivers, which perform mixing and down conversion of RF signals. The power spectrum profile is selected to minimize the IF and base band interference after down conversion. The spectrum can be shaped within each 6 MHz band to further minimize the interference with a TV signal. The power levels can be optimized for both peak power limitation and quantization effects.Type: GrantFiled: March 10, 2003Date of Patent: December 26, 2006Assignee: Entropic Communications, Inc.Inventors: Anton Monk, Edward Warner, Itzhak Gurantz, Ladd Elwardani, Ron Porat
-
Patent number: 7151575Abstract: 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 transmitting encrypted data and decrypting at the receiving node. The conditional access encryption inherent in the data can insure communication security or encryption may be performed at the transmitting node.Type: GrantFiled: July 17, 2003Date of Patent: December 19, 2006Assignee: Entropic Communications, Inc.Inventors: Michael William Landry, Itzhak Gurantz
-
Patent number: 7130576Abstract: 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.Type: GrantFiled: November 6, 2002Date of Patent: October 31, 2006Assignee: Entropic Communications, Inc.Inventors: Itzhak Gurantz, Ladd El Wardani, Michael Landry
-
Publication number: 20030179830Abstract: A system for pre-distorting samples derived from modulated data symbols to compensate, at least in part, for non-linear operation of a power amplifier in a power-constrained remote relay station. A symbol mapper maps successive renderings of an input alphabet into successive modulation symbols such as but not limited to 16-QAM or 64-QAM symbols. Pre-distortion logic pre-distorts samples derived from the symbols, and logic incorporates samples derived from the pre-distorted samples into a transmission signal. The transmission signal is amplified and transmitted over a communications link to the remote relay station. The system may employ a feedback loop to measure the amount of residual distortion still present is a signal relayed from the relay station and derived from the transmission signal.Type: ApplicationFiled: March 25, 2002Publication date: September 25, 2003Inventors: Donald B. Eidson, Itzhak Gurantz, Mats K. Lindstrom
-
Patent number: RE39202Abstract: A digital video conversion system housing multiple converter chains of units in a single main box chassis. A preferred embodiment uses only a single conditional access unit to authorize decryption of premium channels in response to a smartcard. The conversion system allows a single converter box sharing consolidated decryption (access control) circuitry and a single remote control receiver to provide video output for multiple television sets on the subscriber's premises. In addition to reducing the subscriber's hardware costs per television set, a common access control allows the video service provider to grant a multiple-set discount on a single smartcard.Type: GrantFiled: January 25, 2000Date of Patent: July 18, 2006Assignee: Conexant Systems, Inc.Inventor: Itzhak Gurantz