38 results about "Crosstalk cancellation" patented technology

Methods, systems, and devices for crosstalk cancellation for signal lines are described. In some examples, a device (e.g., a host device or a memory device) may generate a first signal and may invert the first signal to obtain an inverted first signal. The device may obtain a second signal based on attenuating a first range of frequencies of the inverted first signal and a second range of frequencies of the inverted first signal, where the first range of frequencies is below a first threshold frequency and the second range of frequencies is above a second threshold frequency that is greater than the first threshold frequency. The device may transmit the first signal via a first signal line of a set of signal lines and the second signal line via a second signal line of the set of signal lines.

A radar-based sensing and communication apparatus, a method, and a device, relating to the technical field of electronics, and used for solving the problem of interference caused by a crosstalk signal (S2) in a radar-based sensing and communication apparatus, thereby improving the performance of the apparatus. The apparatus comprises: a first transmit link (21) for transmitting a transmit signal (S1); a loopback link (22) for receiving an input signal and outputting a first crosstalk cancellation signal, the input signal being the transmit signal (S1) or a baseband signal corresponding to the transmit signal (S1); and a first receive link (23) for receiving the first crosstalk cancellation signal and a receive signal, the receive signal comprising the crosstalk signal (S2) corresponding to the transmit signal (S1) and an echo signal obtained when the transmit signal (S1) is reflected by an obstacle. The phase of the first crosstalk cancellation signal is opposite to that of the crosstalk signal (S2), and the absolute value of the difference between the amplitude of the first crosstalk cancellation signal and the amplitude of the crosstalk signal (S2) is less than a preset value.

The application discloses a kind of based on digital encoding multi-channel data transmission crosstalk elimination method and device, the application based on digital encoding multi-channel data transmission crosstalk elimination method includes that each three-way signal is converted to four-way signal for each channel needing sending multiple parallel signals of sending party to crosstalk elimination, and the multiple signals obtained after conversion are combined and sent into channel to carry out data transmission;For the signal received by each channel, each four-way signal is restored to three-way signal to obtain original data;The device of the application includes the encoder for converting the three-way signal needing sending of sending party to four-way signal and the decoder for restoring the four-way signal received by receiving party to three-way signal.The application aims at the data transmission of multi-channel digital signal to ensure efficient premise and realize maximum crosstalk elimination.

The present disclosure relates to a computer-implemented method of generating audio signals. A computer-implemented method of generating audio signals for a low frequency unit array and a high frequency unit array housed in a computing device is disclosed, the method comprising: receiving a plurality of input audio signals to be reproduced by the low frequency unit array and the high frequency unit array at a respective plurality of control points in an acoustic environment; and generating a respective output audio signal for each low frequency unit and each high frequency unit by applying one or more crosstalk cancellation algorithms to the plurality of input audio signals to control a pressure at each of the plurality of control points, wherein the low frequency unit array comprises two low frequency units and the high frequency unit array comprises at least three high frequency units.

This invention provides a low-crosstalk signal demodulation device and method for fiber optic laser communication, belonging to the field of fiber optic communication technology. The device includes a fiber optic signal input port, an optical circulator, a polarization beam splitter / combiner module, a balanced photodetector unit, a low-noise amplification and quadrature demodulation module, an adaptive crosstalk cancellation unit, a MIMO equalization and decision unit, and a digital signal output port, connected in series according to the signal flow direction. It also includes a crosstalk monitoring and feedback unit bidirectionally connected to the low-noise amplification and quadrature demodulation module, the adaptive crosstalk cancellation unit, and the MIMO equalization and decision unit. This invention, employing the aforementioned low-crosstalk signal demodulation device and method for fiber optic laser communication, overcomes the limitations of traditional single-domain crosstalk suppression. Through the synergistic effect of optical path, circuit, and algorithm layers, it effectively suppresses crosstalk caused by multi-channel multiplexing, polarization mode dispersion, and backscattering, significantly improving demodulation accuracy, anti-interference capability, and system stability.

The invention discloses an inter-core-particle interconnection 5b-6b crosstalk cancellation transceiver, a chip and equipment, the inter-core-particle interconnection 5b-6b crosstalk cancellation transceiver comprises a transmitter, a receiver and a clock module, the transmitter comprises an encoder used for realizing inter-channel bit smooth coding, the receiver comprises a clock module, and the clock module comprises a clock module. The receiver comprises a decoder used for realizing inter-channel bit smooth decoding, inter-channel bit smooth coding refers to performing inter-channel bit smooth coding on 5-bit binary data to obtain 6-bit coded data, and inter-channel bit smooth decoding refers to performing inter-channel bit smooth decoding on the 6-bit coded data to obtain 5-bit binary data. The present invention is directed to combining crosstalk cancellation coding with channel characteristics to maximize bandwidth and edge density while maintaining signal integrity, improving the ability to maintain signal integrity in high density interconnects by reducing bit transitions between channels to reduce far-end crosstalk (FEXT) between lines and to improve crosstalk suppression performance.

Connectors to a set of differential transmit signal contacts for multiple lanes of a communications link may incur signal crosstalk between adjacent lanes. Similar signal crosstalk at the other end of the communications link may be incurred by connectors to a set of differential receive signal contacts. The connector arrangement may provide opposite polarities to the signal crosstalk contributions at opposite ends of the link, creating a substantial reduction in crosstalk.

The invention discloses a sound field expansion method, an audio device and a computer readable storage medium, and relates to the technical field of audio processing, and the method comprises the steps: obtaining a target transfer function between a test audio device at an expansion target position and two ears of a user, and obtaining personalized acoustic transmission data of a target user, the personalized acoustic transmission data comprises at least one head related transfer function HRTF generated based on the personal auditory physiological data of the target user; rendering the original audio according to the personalized acoustic transmission data to obtain personalized audio; and performing crosstalk elimination processing on the personalized audio according to the target transfer function to obtain a target audio, and playing the target audio. While the sound field is effectively expanded, the crosstalk is reduced, and the sound quality is guaranteed.

Semiconductor devices, packages, and structures are described. A semiconductor structure can include a plurality of BGA pads, where a plurality of BGA balls are attached to a first surface of the plurality of BGA pads. The semiconductor structure can further include a layer of dielectrics deposited on a second surface of the plurality of BGA pads. The second surface can be opposite from the first surface. The semiconductor structure can further include at least one floating structure deposited on the layer of dielectrics. The at least one floating structure and at least two of the plurality of BGA pads can form at least two capacitors that are connected within the interposer.

The invention discloses a microseismic crosstalk noise elimination method and device based on cross-correlation. The method comprises the following steps: S1, inputting microseismic monitoring data; s2, calculating a correlation coefficient of each channel of monitoring data, and constructing a standard crosstalk set based on each channel of correlation coefficient and a crosstalk identification threshold; s3, calculating a maximum crosstalk channel, and obtaining a standard crosstalk channel based on the correlation coefficient of the maximum crosstalk channel and the standard crosstalk set; s4, calculating a correlation coefficient of the standard crosstalk channel and the data, and constructing a crosstalk elimination factor based on the correlation coefficient of the standard crosstalk channel and the data; s5, constructing crosstalk of each channel through the standard crosstalk channel and the crosstalk elimination factor, and eliminating the crosstalk of each channel from the original data of each channel to obtain new microseism monitoring data; and S6, repeatedly executing the steps S2-S5 on the new micro-seismic monitoring data until the standard crosstalk set cannot be constructed, and outputting the micro-seismic monitoring data after crosstalk elimination. According to the invention, the crosstalk of the microseism monitoring data can be automatically eliminated.

Semiconductor devices are described herein. The semiconductor device may include a semiconductor package including a plurality of circuits and a plurality of connectors configured to facilitate signal transmission between the semiconductor package and an apparatus when the semiconductor package is connected to the apparatus via the plurality of connectors. At least a first connector of the plurality of connectors may be embedded with a capacitor. A capacitor embedded in the first connector may be connected to a second connector of the plurality of connectors.

An improved apparatus and method for enhancing images is disclosed, and more specifically, an apparatus and method for enhancing images by crosstalk cancellation in multi-beam inspection is disclosed. A method for enhancing images includes obtaining a first image signal of a plurality of image signals from a detector of a multi-beam inspection system. The first image signal corresponds to detection signals from a first region of the detector on which electrons of a first secondary electron beam and electrons of a second secondary electron beam are incident. The method further includes reducing, from the first image signal, crosstalk contamination originating from the second secondary electron beam using a relationship between the first image signal and beam intensities associated with the first secondary electron beam and the second secondary electron beam. The method further includes generating, after the reducing, a first image corresponding to the first secondary electron beam.

Various embodiments disclose a computer-implemented method comprising determining a new position and orientation of a user; updating, based on the new position and orientation of the user, a dimensional map, wherein the dimensional map includes a set of points in a multi-dimensional space and each point is associated with a corresponding transfer function; identifying, based on the new position and orientation of the user, a point in the updated dimensional map nearest to the new position and orientation of the user; configuring, based on at least the transfer function associated with the point nearest to the new position and orientation of the user, at least one crosstalk cancellation filter; generating a plurality of audio signals for a plurality of loudspeakers based on the at least one crosstalk cancelation filter; and transmitting the plurality of audio signals to the plurality of loudspeakers for output.

A semiconductor structure including: a substrate including a plurality of conductive layers and a plurality of insulating layers stacked alternately with each other along a vertical direction of the substrate; a first conductive via structure extending from a top conductive layer of the conductive layers to a bottom conductive layer of the conductive layers and including a first capacitive structure, the first capacitive structure extending in a first conductive layer of the conductive layers; a second conductive via structure extending from the top conductive layer to the bottom conductive layer and including a second capacitive structure extending in the first conductive layer; and a third capacitive structure extending in the first conductive layer or a second conductive layer of the conductive layers, wherein the third capacitive structure forms a first mutual capacitance with the first capacitive structure and a second mutual capacitance with the second capacitive structure.

This invention discloses an image processing circuit for autonomous vehicles, belonging to the field of image processing technology. It solves the problems of unexpected refraction and scattering of light due to physical defects in optical microlenses and color filters, and charge coupling caused by parasitic capacitance in pixel units, leading to leakage of optical / electrical signals from a single pixel to adjacent pixels, resulting in color aliasing and blurred image edges. The circuit includes a main image sensor module, a reference image sensor module, and an analog signal preprocessing and multiplexing module. This invention coordinates the synchronous signal acquisition of the main and reference image sensors through a low-jitter clock distribution module. After integration by the analog signal preprocessing module, a dynamic crosstalk compensation module generates an inverse compensation signal based on the reference signal. A high-precision differential correlation dual sampling module then performs noise suppression and crosstalk elimination on the main signal. Finally, a programmable gain amplifier module outputs the purified differential signal.

The optical fiber sensor based on the multi-parameter response mechanism of the cascaded FFPI cavity includes a ceramic tube No. 1 and a ceramic tube No. 2 arranged in the ceramic tube No. 1, wherein a sapphire wafer No. 1 is embedded in the bottom of the ceramic tube No. 1, and a sapphire wafer No. 2 is provided at one end of the ceramic tube No. 2 extending into the ceramic tube No. 1, and an FFPI-1 cavity is formed in the ceramic tube No. 1 and between the sapphire wafer No. 1 and the sapphire wafer No. 2; a pure quartz optical fiber is provided in the ceramic tube No. 2, wherein an optical fiber core is wrapped inside the pure quartz optical fiber, and an FFPI-2 cavity is formed in the ceramic tube No. 2 and between one end of the pure quartz optical fiber close to the sapphire wafer No. 2 and the sapphire wafer No. 2; an FFPI-3 cavity is further provided in the pure quartz optical fiber located in the ceramic tube No. 2; the present invention quantitatively analyzes the crosstalk perception between different parameters under the action of high temperature and multi-physical field coupling, establishes a multi-parameter superposition response model and a crosstalk elimination model, combines the high-temperature resistant materials of sapphire and ceramic tubes, and is resistant to high temperature, large strain, and high pressure, and has high measurement accuracy.

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.

The invention discloses an audio processing method, apparatus and device, and a computer readable storage medium. The method comprises the steps of obtaining loudspeaker data of a plurality of loudspeakers and first distance information between each loudspeaker and a listening position; determining audio equalization data based on the loudspeaker data; determining crosstalk cancellation data based on the first distance information and second distance information between the plurality of speakers; and processing the to-be-processed audio data based on the audio equalization data and the crosstalk elimination data to obtain target audio data. By adopting the method provided by the invention, the acoustic image range of the loudspeaker can be expanded, and the influence of acoustic defects in a playback environment on the playback effect can be reduced.

The invention provides a signal receiving circuit and a receiver, and relates to the technical field of communication, the signal receiving circuit comprises a first decision feedback equalizer and at least one second decision feedback equalizer, the first decision feedback equalizer comprises a first processing circuit, the first processing circuit comprises a first input end and at least one second input end, the first input end is connected with a first channel, each second input end is connected with the output end of the corresponding second decision feedback equalizer through a first filter circuit of the second decision feedback equalizer in one-to-one correspondence, and the second decision feedback equalizer is a decision feedback equalizer corresponding to a channel adjacent to the first channel; wherein the first filter circuit is used for extracting a crosstalk signal of a channel corresponding to the second decision feedback equalizer to the first channel, and the first processing circuit is used for eliminating a crosstalk signal of an adjacent channel to the first channel. The crosstalk elimination effect of the receiver can be improved.

This application discloses a sound field expansion method, audio device, and computer-readable storage medium, relating to the field of audio processing technology. The method includes: obtaining a target transfer function between a test audio device at the target location and the user's two ears, and obtaining personalized acoustic transmission data of the target user, wherein the personalized acoustic transmission data includes at least one head-related transfer function (HRTF) generated based on the target user's personal auditory physiological data; rendering the original audio based on the personalized acoustic transmission data to obtain personalized audio; performing crosstalk cancellation processing on the personalized audio according to the target transfer function to obtain target audio, and playing the target audio. This application effectively expands the sound field while reducing crosstalk and ensuring sound quality.

Techniques are described for wirelessly receiving, at first and second speaker assemblies, signals representing left and right audio channels from each of first and second sources, and using the signals, simultaneously playing, on both speaker assemblies, music, computer game audio, computer chat audio, and speech picked up by speaker microphones. Microphone signal beamforming, cross-talk removal, echo cancelation, and noise reduction may be performed using local and remote channels to isolate microphone signals.

Connectors to a set of differential transmit signal contacts for a plurality of channels of a communication link may generate signal crosstalk between adjacent channels. Similar signal crosstalk at the other end of the communication link may be caused by connectors to a set of differential receive signal contacts. The connector arrangement may provide opposite polarities for signal crosstalk contributions at opposite ends of the link, resulting in significant crosstalk reduction.

The application provides an image processing method for reducing crosstalk artifacts, wherein according to an interpolation calculation direction, interpolation calculation of a specific color channel is performed on each pixel in a pixel block of another color channel, then according to the interpolation calculation direction and the interpolation calculation result, it is judged whether a pixel block to be measured in the specific color channel plane exists crosstalk artifacts, crosstalk cancellation processing is performed on the pixel block with crosstalk artifacts, and a RAW domain image after crosstalk cancellation processing is output, so that the crosstalk artifacts in the RAW domain image output by the image sensor can be reduced at a lower cost, and the image quality is improved.

This invention discloses a pre-emphasis crosstalk cancellation circuit, a transmitter, and a communication system, applicable to the field of integrated circuits. The circuit includes a capacitor network module, a driver slicing module, and an adjustable delay module. The capacitor network module generates a crosstalk cancellation signal; the adjustable delay module receives attacker data and adjusts the position of the crosstalk cancellation signal; the driver slicing module receives victim data, transmits the victim signal, and adds the victim signal and the crosstalk cancellation signal at the transmitter's transmitting end. This invention uses a capacitor network module to generate a crosstalk cancellation signal opposite to the crosstalk signal, and superimposes the victim signal and the crosstalk cancellation signal at the transmitter's transmitting end to cancel out the crosstalk signal. It eliminates the need for a driver slicing module to transmit the attacker signal, ensuring that the transmitter's main signal output swing is not reduced. This invention is suitable for high-order modulation signaling and tightly coupled channels.

A computer-implemented method for generating crosstalk cancellation (CTC) filters for a reverberant acoustic environment having multiple audio zones, the method comprising determining, based on a CTC simulation model of an acoustic environment, a first set of frequency responses for respective positions proximate to one or more speakers located in the acoustic environment, and a second set of frequency responses for respective listening positions in the acoustic environment, generating, based on the first set of frequency responses and the second set of frequency responses, an acoustic environment transfer function matrix for the acoustic environment, and generating, based on the acoustic environment transfer function matrix, a set of CTC filters for a set of speakers in the acoustic environment.

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.

Semiconductor devices are described herein. A semiconductor device can include a semiconductor package including a plurality of circuits and a plurality of connectors configured to facilitate signal transmission between the semiconductor package and a device when the semiconductor package is connected to the device via the plurality of connectors. At least a first connector among the plurality of connectors can be embedded with a capacitor. The capacitor embedded in the first connector can be connected to a second connector among the plurality of connectors.

Techniques are described for wirelessly receiving, at first and second speaker assemblies, signals representing left and right audio channels from each of first and second sources, and using the signals, simultaneously playing, on both speaker assemblies, music, computer game audio, computer chat audio, and speech picked up by speaker microphones. Microphone signal beamforming, cross-talk removal, echo cancelation, and noise reduction may be performed using local and remote channels to isolate microphone signals.

Provided is an electronic percussion instrument, an electronic musical instrument, an information processing device, and an information processing method, capable of more appropriate crosstalk cancellation. An electronic musical instrument includes a first performance operation member and a second performance operation member, and includes a control device that performs processing of generating an envelope indicating a temporal change in a reference value for determining whether vibration of the second performance operation member is self-vibration or vibration accompanying vibration of the first performance operation member, based on a waveform indicating vibration of the first performance operation member, and causing information indicating an operation of the second performance operation member to not include information based on vibration of the second performance operation member using the reference value indicated by the envelope.