45results about "Cross-talk reduction" patented technology

Examples described herein relate to an Ethernet physical layer transceiver (PHY) circuitry to generate a training signal for transmission for a lane based on a pseudorandom bit sequence (PRBS) polynomial and seed.

This communication system using a heating line may perform communication by dividing a time section into a heating section and a communication section in communication between a control panel and a sensor unit connected by the heating line. The present invention enables communication to be performed by dividing a time section into a heating section and a communication section in communication between a control panel and a sensor unit, thereby preventing a problem that a communication signal is blocked or distorted in power communication in which a heating line is connected. The present invention enables communication to be performed by dividing a time section into a heating section and a communication section, thereby solving problems of excessive heating caused by continuous supply of power to the heating line and high temperature maintenance costs.

A differential data transmission system (200; 700), comprising: a source (201) configured to transmit a differential signal containing data; a load (204) configured to receive the differential signal; and a common-mode suppressor (300; 400; 500; 702) comprising a long, wound differential transmission line configured to carry the differential signal from the source to the load; wherein a length of the differential transmission line is at least greater than one tenth of the wavelength of the differential signal, which is transmitted through the differential transmission lines in a predetermined operating frequency range of the differential signal, further comprising a protection circuit (202; 701) against electrostatic discharges, which is connected to the first (303; 703) and second (304; 704) input pins of the common-mode suppressor (300; 400; 500; 702) and which is configured to provide protection against shocks from electrostatic discharge.

A communication system for use in a vehicle includes a first communication device configured for operation in the vehicle, and a second communication device configured for operation in the vehicle. A cable assembly communicatively couples the first communication device with the second communication device. A signal suppressing device is coupled to the cable assembly at a location proximate to an end of the cable assembly. The signal suppressing device is configured to suppress signals in a frequency range corresponding to in-band radiated emission (RE).

The transmitter transmits a first signal at a first communication rate over a first cable. The receiver receives a second signal over the first cable simultaneously with transmitting the first signal over the first cable. The second signal is transmitted by another device at a second communication rate that is lower than both (i) the first communication rate and (ii) a third communication rate at which a third signal is being transmitted over the second cable that causes crosstalk in the second signal received over the first cable. Receiving the second signal at a second communication rate that is lower than the third communication rate facilitates mitigating crosstalk in the second signal caused by transmission of the third signal at the third communication rate over the second cable.

The invention provides a synchronous data crosstalk effect optimization method and system and electronic equipment. The method comprises the following steps: respectively measuring a jump edge jitter range of a victim channel and a jump edge jitter range of an applicator channel; any channel is selected from the victim channel and the applicator channel, and a first delay module is additionally arranged at the sending end of the selected channel; a second delay module is additionally arranged at the tail of the other unselected channel; configuring the first time delay module and the second time delay module based on the jump edge jitter range of the victim channel and the jump edge jitter range of the applier channel; and performing crosstalk effect optimization on the synchronous data of the two channels based on the configured first delay module and second delay module. The method can solve the problems that an existing synchronous data crosstalk effect optimization scheme is high in responsible degree and poor in optimization effect.

Embodiments of the present invention provide systems, devices and methods for identifying and selecting a preferred frequency spectrum for communication using a wireline media. In certain embodiments, a process of sensing traffic on the wireline media from other service is described and subsequent selection of a preferred frequency range in which interference from these other services is reduced.

The invention relates to a method for crosstalk compensation of output signals (SL1 (t), SL2 (t)) of at least one small signal converter for measuring electrical quantities on at least two conductors (L1, L2), at least one of which causes crosstalk,-wherein when a sinusoidal electrical quantity is fed into one of the conductors (L1, L2), the output signals (SL1 (t), SL2 (t)) of the small signal converter are compensated for the crosstalk of the output signals (SL1 (t), SL2 (t)). A crosstalk amplitude and a crosstalk phase angle of the small signal converter on the other conductor (L1, L2) are determined,-wherein for each small signal converter the crosstalk (CrCap) at a phase angle of 90 DEG (or-90 DEG) is determined from the product of the measured crosstalk amplitude and the sine of the measured crosstalk phase angle,-wherein for each small signal converter the crosstalk (CrCap) at a phase angle of 90 DEG (or-90 DEG) is determined from the product of the measured crosstalk amplitude and the sine of the measured crosstalk phase angle,-wherein the crosstalk (CrCap) at a phase angle of 90 DEG (or-90 DEG) is determined from the product of the measured crosstalk amplitude and the sine of the measured crosstalk phase angle. The crosstalk (Cind) at a phase angle of 0 DEG (or 180 DEG) is determined from the product of the measured crosstalk amplitude and the cosine of the measured crosstalk phase angle,-wherein, in order to form the compensated output signal (SL1 comp (t), SL2 comp (t)) of each small signal converter considered, the crosstalk (Cind) is determined at a phase angle of 0 DEG (or 180 DEG). From the uncompensated output signal (SL1 (t), SL2 (t)) of the small signal converter, the product of the electrical quantity on the respective other conductor (L1, L2) and the crosstalk (Cind) at a phase angle of 0 or 180 DEG and the product of the electrical quantity on the respective other conductor (L1, L2) phase shifted by 90 DEG and the crosstalk (CrCap) at a phase angle of + 90 DEG or-90 DEG are subtracted.

An active single-ended transmission cable is disclosed. The active single-ended transmission cable allows connection between a first and a second electronic device and comprises a first port, a second port, and a transmission wire. The first or second port is used for receiving or transmitting a differential signal between the first and the second electronic devices, and for converting between a differential signal and a single-ended signal. The transmission wire is used for transmitting the single-ended signal. This allows the conversion between the received or transmitted differential signal at the first and second ports into the single-ended signal so as to allow the transmission of the single-ended signal within the transmission wire.

This application relates to signal correction for serial interfaces. A signal correction circuitry is described that improves the integrity of data transmitted over a serial data interface without interrupting communication between connected devices. The signal correction circuitry includes edge correction circuitry that accelerates rising and falling edges of a data signal. The signal correction circuitry also includes DC compensation circuitry that boosts the level of the data signal.

Provided is an electronic device including a first signal line configured to receive a first reception signal, a second signal line configured to receive a second reception signal, a third signal line configured to receive a third reception signal having a correlation with the second reception signal, the third signal line being positioned between the first signal line and the second signal line, a first crosstalk filter connected to the second signal line and configured to output a first compensation signal by applying a pole frequency and a gain coefficient to a second reception signal, and an adaptive filter configured to receive the second reception signal and a first final signal corresponding to the first reception signal, and to adjust the pole frequency and the gain coefficient of the first crosstalk filter based on the second reception signal and the first final signal.

The invention relates to a method for crosstalk compensation for output signals (S L1 (t), S L2 (t)) of at least one low-power instrument transformer for measuring electrical quantities on at least two conductors (L1, L2), at least one of which causes crosstalk, wherein: - while a sinusoidal electrical quantity is fed in on one of the conductors (L1, L2), a crosstalk amplitude and a crosstalk phase angle of the low-power instrument transformer on the other conductor (L1, L2) is determined; - cross-coupling (Cr Cap ) at a phase angle of 90° (or -90°) is determined from the product of the measured crosstalk amplitude and the sine of the measured crosstalk phase angle for each low-power instrument transformer; - cross-coupling (Cr ind ) at a phase angle of 0° (or 180°) is determined from the product of the measured crosstalk amplitude and the cosine of the measured crosstalk phase angle for each low-power instrument transformer; - to form a compensated output signal (S L1comp (t), S L2comp (t)) of each low-power instrument transformer considered, the product of the electrical quantity on the other conductor (L1, L2) and the cross-coupling (Cr ind ) at a phase angle of 0° or 180° and the product of the electrical quantity phase-shifted by 90° on the other conductor (L1, L2) and the cross-coupling (Cr cap ) at the phase angle of +90° or -90° are subtracted from an uncompensated output signal (S L1 (t), S L2 (t)) of said low-power instrument transformer.

An example method can include determining, by a compiler based at least in part on crosstalk data indicative of a rate of crosstalk between a first data transmission path and a second data transmission path, a timing of a first data transmission over the first data transmission path. The example method can include providing, by the compiler, one or more computer-readable instructions to cause one or more processor devices to initiate the first data transmission according to the timing.

Examples described herein relate to an Ethernet physical layer transceiver (PHY) circuitry to generate a training signal for transmission for a lane based on a pseudorandom bit sequence (PRBS) polynomial and seed.

This communication system using a power source line can perform, in communication between a control panel and a sensor control unit connected by the power source line, communication by dividing a time period into a power source supply period and a communication period. The present invention can prevent, in communication between a control panel and a sensor control unit, problems of communication signals being blocked or distorted in power source line-connected power communication by dividing a time period into a power source supply period and a communication period. The present invention can divide a time period into a power source supply period and a communication period, and thus can solve problems of excessive heat generation and greatly increased temperature-maintenance costs caused by continuously supplying a power source to a power source line.

A semiconductor device includes a first encoding circuit encoding data to generate encoding data including one or more symbol groups, each of the symbol groups including an upper symbol and a lower symbol; and a second encoding circuit generating transmission data by performing an operation on previous transmission data and the encoding data. The first encoding circuit encodes the data to prevent a signal on each of one or more of aggressor lines from transitioning when a signal on a victim line transitions. A plurality of data lines of the semiconductor device are arranged in a grid pattern, the victim line is a data line included in an inner row among the plurality of data lines, and each of the aggressor lines is a data line located adjacent the victim line. The upper symbol corresponds to the victim line and the lower symbol corresponds to the aggressor lines.

Disclosed herein are embodiments of an audio device having a first audio channel configured to transmit a first audio signal and at least one second audio channel configured to transmit at least one second audio signal. The first audio channel includes a first audio cable and a first noise masker for generating a masking noise, where the first noise masker is configured to introduce the masking noise into the first audio channel to mask a crosstalk level of a first crosstalk signal inflicted in the first audio channel by one or more of the at least one second audio signal.

A connector device includes a plurality of connectors each configured to connect a conductor of a first cable to a conductor of a second cable. The connectors each include a body portion having conductor receiving portions each structurally configured to receive a conductor of one of the cables, a crosstalk mitigation portion configured to mitigate crosstalk, the crosstalk mitigation portion including a connection portion structurally configured to connect a first one of the conductors to a second one of the conductors, and the crosstalk mitigation portion is configured with a crosstalk mitigating shape configured to reduce a level of crosstalk to the cables.

The invention relates to a signal processing arrangement (10) and a method for compensating or pre-compensating cross talk in a communication system (100) having M transmitters (Tx-1 - Tx-M) and N receivers (Rx-1 - Rx-N), the signal processing arrangement comprising a signal providing unit (2) configured to provide a first and a second set of digitized signals (HR1, HR2, LR3-LR6) based on at least some of the output signals (Rout-1 - Rout- 6) of the receivers or at least some of the input signals (In 1- In M) to be supplied to the transmitters (Tx-1 - Tx-M), wherein the digitized signals (HR1, HR2) of the first set of digitized signals have a higher resolution and / or sampling rate than the digitized signals (LR3-LR6) of the second set of digitized signals; and a MIMO processing unit (1) configured to receive the first and the second set of digitized signals (HR1, HR2, LR3-LR6) from the signal providing unit (2) and to process the first and the second set of digitized signals (HR1, HR2, LR3-LR6) to compensate or pre-compensate crosstalk.

A relay chip includes a plurality of front-stage receiving pin groups, a plurality of front-stage transmitting pin groups, a plurality of back-stage transmitting pin groups, a plurality of back-stage receiving pin groups, and a plurality of selectors. The front-stage transmitting pin groups and the front-stage receiving pin groups are arranged in an alternating manner, and the back-stage receiving pin groups and the back-stage transmitting pin groups are arranged in an alternating manner. The number of the back-stage transmitting pin groups is an integer multiple of the number of the front-stage receiving pin groups, and the number of the back-stage receiving pin groups is the integer multiple of the number of the front-stage transmitting pin groups. Each selector is connected to the integer multiple of one of the front-stage receiving pin groups and the back-stage transmitting pin groups, or connected to the integer multiple of one of the front-stage transmitting pin groups and the back-stage receiving pin groups. The present application also relates to a multiplexing control device having the relay chip.

The invention relates to crosstalk cancellation. Signal lines within an electronic system may be aligned in a spiral pattern. Further, two adjacent signal lines, in which at least one of the signal lines is aligned in a spiral pattern, may be arranged in a particular manner, in which signals on the two signal lines are transmitted in opposite directions. Some of the spiral patterns formed within the electronic system may be interwoven with each other.

A signal delivery wiring system for a quantum computer includes a first signal line carrying a first signal on a wiring cable on a first frequency band and a second signal line carrying a second signal on the wiring cable on a second frequency band. The first signal line is interspersed with the second signal line on the wiring cable. The first frequency band is different from the second frequency band such that crosstalk is avoided between the first signal line and the second signal line.

Embodiments of the present invention provide systems, devices and methods for improving the performance and range of wireless-wireline communication systems. In certain examples, the architecture leverages pre-existing copper within a building to allow a signal to traverse physical barriers, such as walls, on copper wire while using wireless portions of the channel to communicate signals in air both outside and inside the building. Reallocation of spectrum within this architecture is performed across various embodiments to improve performance and decrease signal attenuation and interference.

For digital subscriber lines, the entire system needs to deal with the crosstalk problem of adjacent cable pairs in the same cable bundle. The present disclosure provides a mechanism for dynamic spectrum management to reduce crosstalk between subscriber lines by reducing the unnecessary power spectral density on some subscriber lines to optimize the overall performance of many subscriber lines. The decision of this reduction (or power back-off) is generally based on the loop distance between the central office and the customer equipment. The shorter the loop distance, the lower the power. However, this does not take into account the quality of each subscriber line, i.e., its background noise and external interference. The transceivers can receive this information, such as background noise and external interference. The negotiation procedure includes this information to adjust the power reduction so that the reduction does not degrade the potential best performance of these subscriber lines.

In accordance with an embodiment, the method includes detecting an update event whereupon a precoder needs to be updated, sending signal adjustment information to a receiver remotely coupled to a subscriber line out of the plurality of subscriber lines indicative of a signal compensation factor to be applied to a receive communication signal to compensate for a channel bias caused by the scheduled precoder update, and time-coordinating the precoder update with the enforcement of the signal compensation factor at the receiver.

This application provides a power line carrier communication PLC system and method, relating to the field of power line carrier communication technology. The method provided in this application can reduce power reduction caused by carrier power distribution when transmitting carrier signals in a PLC system. The system includes: a PLC host, a first carrier director, a first group of PLC terminal devices, and a second group of PLC terminal devices. The input terminal of the first carrier director is connected to the output terminal of the PLC host, the first carrier director is connected to the first group of PLC terminal devices, and the second output terminal of the first carrier director is connected to the second group of PLC terminal devices. The PLC host can be used to plan the carrier transmission line, generate a carrier control signal according to the carrier transmission line, and issue the carrier control signal from its output terminal. The first carrier director can be used to receive the carrier control signal and, in response to the carrier control signal, connect the transmission path between the PLC host and the PLC terminal devices indicated by the carrier transmission line.

A semiconductor device includes a first encoding circuit configured to encode data to generate encoding data including a plurality of symbols; and a second encoding circuit configured to generate transmission data by performing an operation on previous transmission data and the encoding data. A plurality of data lines of the semiconductor device are arranged in a grid pattern, and each of the plurality of symbols corresponds to a column of the data lines in the grid pattern. The first encoding circuit encodes the data to prevent a signal on each of one or more of aggressor lines from transitioning when a signal on a victim line transitions. The victim line is a data line included in an inner row of the data lines and each of the aggressor lines is a data line located adjacent to the victim line.

The application provides a synchronous data crosstalk effect optimization method, system and electronic equipment. The method comprises the following steps: measuring the jitter edge jitter range of a victim channel and the jitter edge jitter range of an aggressor channel respectively; adding a first delay module at the sending end of the selected channel in either the victim channel or the aggressor channel; adding a second delay module at the end of the unselected channel; configuring the first delay module and the second delay module based on the jitter edge jitter range of the victim channel and the jitter edge jitter range of the aggressor channel; and optimizing the crosstalk effect of the synchronous data of the two channels based on the configured first delay module and second delay module. The application can solve the problems of high responsibility and poor optimization effect of the existing synchronous data crosstalk effect optimization scheme.

A transceiver transmits data via a first cable among a plurality of cables in a wired communication network, and selectively operates in one of (i) an active mode for transmitting data to a link partner via the first cable and (ii) a low power mode during which the transceiver quiets transmissions to conserve power. A crosstalk detector determines that transmission of data in the first cable is causing crosstalk in one or more second cables. A controller, in response to the crosstalk detector determining that transmission of the data in the first cable is causing crosstalk in one or more second cables, controls the transceiver to operate in the low power mode during a plurality of first time periods to reduce crosstalk in the one or more second cables during the plurality of first time periods.

Signal lines within an electronic system can be aligned in a spiral pattern. Additionally, two adjacent signal lines, with at least one of the signal lines aligned in a spiral pattern, can be arranged in a particular manner, in which signals on the two signal lines are transmitted in opposite directions. Some of the spiral patterns formed within the electronic system can be intertwined with one another.