Intel Corporation

Maxlinear, Inc.

Safefields Technologies Ltd.

Maxlinear Asia Singapore Pte Ltd

Shaul Shulman

Bernard Arambepola

Thushara Hewavithana

Noam Tal

Nathan Goichberg

Sahan S Gamage

Amos Klimker

Guy Ray

Oded Ei-nat

Naor Goldman

Barak Hermesh

Boaz Kol

Gerfried Krampl

Franz-Josef Schaefer

David Barr

Dmitrii A Loukianov

Avi Priev

Elihay Shalem

Eran Eran Vodevoz

A vehicle, comprising: a frame; a passenger compartment including a selected region suitable for presence of people; an electric motor that, when in operation is associated with an undesired magnetic field emitted into the selected region; a magnetic field generator positioned in at least one of a passenger seat, a vehicle door, or the frame, wherein the magnetic field generator is configured to at least reduce the undesired magnetic field in the selected region; a magnetic field sensor configured for sensing the undesired magnetic field emitted into the selected region; and a circuit configured to: receive from the magnetic field sensor sensing data indicative of the undesired magnetic field; determine a cancelation magnetic field for at least reducing the undesired magnetic field; and direct electrical signals to the magnetic field generator for generating the cancelation magnetic field for at least reducing the undesired magnetic field.

System and method for active cancellation of magnetic fields in a passenger cabin of a vehicle

A method and apparatus for detecting and locating a fault in a cable network. A cable modem may perform channel estimation to obtain a time domain channel response on an echo channel in a cable network. The cable modem then analyzes the time domain channel response to determine whether there is any change from a previously obtained time domain channel response on the echo channel. If there is a change from the previously obtained time domain channel response, the cable modem may generate an alert for a fault in the cable network and estimate a location of the fault based on the time domain channel response. Calibration may be performed to determine a reference latency for a reflection occurred inside the cable modem, and the location of the fault may be estimated based on the reference latency.

Method and apparatus for detecting and locating a fault in a cable network

System, method, and computer readable medium are disclosed for reducing a time-varying undesired magnetic field in a passenger compartment of a vehicle. Reducing a time-varying undesired magnetic field in a passenger compartment of a vehicle includes a magnetic field source for transmitting time-varying currents resulting in the time-varying undesired magnetic field in the passenger compartment including a selected region suitable for presence of people; a sensor for detecting the time-varying undesired magnetic field and to provide sensing data; a magnetic field generator for generating a time-varying cancellation magnetic field in the selected region; a circuit for receiving the associated sensing data; determining the time-varying cancellation magnetic field from the associated sensing data; and transmitting signals to the magnetic field generator to thereby generate the time-varying cancellation magnetic field for at least reducing the time-varying undesired magnetic field.

System and method for cancelling a continually varying electromagnetic field in a passenger cabin

A passenger vehicle, comprising: a frame of a vehicle; a passenger compartment of the vehicle, including a selected region suitable for presence of people; a magnetic field source configured such that upon electrification, magnetic field radiation is caused in the selected region; a plurality of magnetic field sensors arranged along generally intersecting planes for providing magnetic field sensing data along at least two axes within the selected region; and at least one circuit mounted in the vehicle and electrically connected to the plurality of magnetic field sensors, the at least one circuit being configured to measure the magnetic field radiation in the selected region.

Sensor positioning relative to a magnetic field source and a passenger cabin of a vehicle

A network infrastructure combining data over cable service interface specification (DOCSIS) cable modem management and 10 Gb passive optical network XGPON networking technology. The DOCSIS equipment controls restrict the XGPON to physical layer (layer 1) while the DOCSIS equipment operate at a data link layer and above.

Cable modem system management of passive optical networks (PONS)

A cable modem transceiver includes a processor configured to derive an instant of time for an upstream calibration signal on basis of upstream scheduling information. Further, the cable modem transceiver includes a transmitter configured to generate the upstream calibration signal at the derived instant of time. The cable modem transceiver additionally includes a detector configured to determine a property of the generated upstream calibration signal. The processor is further configured to derive at least one calibration parameter for the transmitter on basis of the detected property.

Cable modem transceiver, cable modem, cable modem communication system, processor for a cable modem transceiver, method for calibrating a cable modem transceiver, and computer program

Mixed mode constellation mapping to map a data block to a block of sub-carriers based on a configurable set of one or more constellation mapping schemes, and corresponding mixed mode least likelihood ratio (LLR) de-mapping based on the configurable set of one or more modulation schemes. The set may be configurable to include multiple modulation schemes to provide to a SEvSNR measure that is a non-weighted or weighted average of SEvSNR measures of the multiple modulation schemes. Mixed mode constellation mapping may be useful be configurable to control spectral efficiency versus SNR (SEvSNR) over a range of SNR with relatively fine SNR granularity, and may be configurable to control SEvSNR over a range of SNR at a fixed FEC code rate, which may include a highest available or highest permitted code rate.

Configurable constellation mapping to control spectral efficiency versus signal-to-noise ratio

Cable modem system management of passive optical networks (PONs)

A cable modem system for discovering interference groups (IGs) includes an infrastructure and a cable modem termination system (CMTS). The infrastructure is for transferring data. The CMTS is configured to initiate generation of test signals by a set of cable modems (CMs), obtain a set of test measurements for the set of CMs, discover interference groups (IGs) of the set of CMs based on the obtained set of test measurements and assign a plurality of upstream and downstream channels for the set of CMs that use orthogonal frequency division multiplexing (OFDM) based on the discovered IGs.

Signaling method for interference group discovery in cable modems

A high-speed serial interface (HSIF) for communicating between an analog front end (AFE) and a System on a Chip (SoC) digital radio via a bi-directional serial bit connection for an OFDM cable modem includes generating Status Frames and Data Frames to be communicated between the tuner and AFE and sending the generated Status Frames and Data Frames on a continual basis. Each Frame is a 10-bit K.28 Comma Sync word followed by a payload and when no data is queued to be communicated, Status Frames are sent asynchronously as filler frames.

High-speed serial interface for orthogonal frequency division multiplexing (OFDM) cable modems

A cable modem supporting full duplex (FDX) operations. The cable modem includes a transmit circuitry configured to process a transmit signal and a receive circuitry configured to process a receive signal. The receive circuitry includes a switchable analog filter configured to filter the receive signal. The switchable analog filter is configurable for different passband frequencies. The receive circuitry also includes a digital compensation filter configured to compensate a difference in frequency response in a specific frequency band due to switching of the switchable analog filter for a different passband frequency. The cable modem also includes an adjacent channel interference (ACI) cancellation filter and an adjacent leakage interference (ALI) cancellation filter. A digital compensation filter is also used in processing the ACI cancellation signal and the ALI cancellation signal to impose or compensate the difference in frequency response due to the switchable analog filter switching.

Cable modem and digital compensation for switchable analog filter to assist echo cancellation in full duplex cable modem

A device includes a digital frontend. The digital frontend is configured to digitally modulate symbols for digital signals of a plurality of channels according to a transmission protocol. Each channel is associated with at least one respective carrier frequency within a transmission bandwidth. The digital frontend is further configured to combine the digital signals to obtain a digital output signal. The device further includes an analog frontend having a digital-to-analog converter configured to convert the digital output signal into an analog output signal. The analog frontend also includes a programmable gain amplifier configured to apply an analog gain to the analog output signal. The device further includes a control logic configured to determine the analog gain based on calibration data indicative of the frequency response of the analog frontend across a transmission bandwidth.

Multi-channel transmission with flexible gains

A cable modem (CM) system for utilizing additional bandwidth is disclosed. The system includes a receiver path, a feedback path, and a feedback receiver. The receiver path is configured to obtain a base signal having a base bandwidth from a downstream signal. The feedback path is configured to obtain an additional signal having an additional bandwidth from the downstream signal and convert the additional signal to a feedback bandwidth. The feedback receiver of a cable modem tuner is configured to process the additional signal using the feedback bandwidth.

Growing community of inventors

Ramat Gan, Israel

Shaul Shulman