H04L25/03038

COMMUNICATION METHOD, ELECTRONIC APPARATUS, PROCESSING APPARATUS, AND ELECTRONIC DEVICE
20220200826 · 2022-06-23 · ·

A communication method is applicable to a processing apparatus that includes a processor and a communications interface. The processor determines a first parameter corresponding to the communications interface, wherein the communications interface is connected to at least one storage apparatus and communicates with the at least one storage apparatus based on the first parameter. In this way, the processor determines a parameter used to improve a quality of signal transmission and integrity during communication between the processing apparatus and the at least one storage apparatus.

ANALOG RECEIVER EQUALIZER ARCHITECTURES FOR HIGH-SPEED WIRELINE AND OPTICAL APPLICATION
20220182268 · 2022-06-09 ·

The present invention is directed to communication method and techniques. In a specific embodiment, the present invention provides a receiver that interleaves data signal n-ways for n slices. Each of the n slices includes feedforward equalizer and decision feedback equalizers that are coupled to other slices. Each of the n slices also includes an analog-to-digital converter section that includes data and error slicers. There are other embodiments as well.

Electronic device including equalizing circuit and operating method of the electronic device

An electronic device includes: a first equalizing circuit configured to receive a data signal and output a first equalizing signal based on the data signal; a pulse generator configured to generate a first pulse signal and a second pulse signal in response to a rising edge and a falling edge of the data signal, respectively; a second equalizing circuit configured to output a second equalizing signal based on the first pulse signal and the second pulse signal that have been inverted; and an output terminal configured to output an output signal in which the first equalizing signal and the second equalizing signal have been summed.

SERDES RECEIVER WITH OPTIMIZED CDR PULSE SHAPING

An optimized pulse shaping clock data recovery system is provided that includes a slicer configured to receive a signal and provide an initial set of tentative decisions to a decision feedforward equalizer, where the decision feedforward equalizer provides a fully equalized output signal. The slicer may be incorporated as part of decision feedback equalizer to provide better quality tentative decisions. The clock data recovery system also receives the first output signal that is partially equalized in such a way as to optimally shape it for a clock to sample it at an ideal location by providing an adjustment signal to the analog to digital controller.

MULTI-LEVEL OUTPUT DRIVING CIRCUIT AND METHOD
20230261913 · 2023-08-17 ·

Provided are a multilevel output drive circuit and method. The circuit includes: a signal selection module, configured to selectively output a signal to be transmitted of a corresponding channel according to an external input signal; a weight generation module, configured to generate weight data according to a weight of an output eye diagram, wherein the weight of the output eye diagram and the weight data are multi-bit binary data; a coefficient transfer module, configured to perform weight control on the signal to be transmitted according to the weight data and generate data containing weight information; and a weight adjustment and data outputting module, configured to perform weight adjustment and pulse amplitude modulation calculation according to weight adjustment control data, the signal to be transmitted and the data containing weight information, and generate PAM4 data.

VARIABLE RESOLUTION DIGITAL EQUALIZATION

A receiver includes a variable resolution analog-to-digital converter (ADC) and variable resolution processing logic/circuitry. The processing logic may use feed-forward equalization (FFE) techniques to process the outputs from the ADC. When receiving data from a channel having low attenuation, distortion, and/or noise, the ADC and processing logic may be configured to sample and process the received signal using fewer bits, and therefore less logic, than when configured to receiving data from a channel having a higher attenuation, distortion, and/or noise. Thus, the number of (valid) bits output by the ADC, and subsequently processed (e.g., for FFE equalization) can be reduced when a receiver of this type is coupled to a low loss channel. These reductions can reduce power consumption when compared to operating the receiver using the full (i.e., maximum) number of bits the ADC and processing logic is capable of processing.

WIRELESS REPEATER WITH FIR BASED CHANNEL EQUALIZER
20220029658 · 2022-01-27 · ·

This invention presents a repeater enhanced MU-MIMO wireless communication system comprising a BS, a plural of repeaters, and a plural of UEs, where a repeater estimates the channel between itself and its upper communication node in the system, a repeater computes equalization coefficients based on the estimation of the channel coefficients, and a repeater applies the equalization coefficients to reduce the channel delay spread or increase the coherence bandwidth of the channel between communication nodes containing the BS, the UEs, or the repeaters.

Methods and systems for providing multi-stage distributed decision feedback equalization
11233677 · 2022-01-25 · ·

Pre-charging two or more sets of nodes to set a differential output of a multi-input summation latch connected to the two or more sets of nodes in a pre-charged state, the two or more sets of nodes comprising a set of data signal nodes and a set of DFE correction nodes, in response to a sampling clock, generating a differential data voltage and an aggregate differential DFE correction signal, and generating a data decision by driving the differential output of the multi-input summation latch into one of two possible output states according to a summation of the differential data voltage signal and the aggregate differential DFE correction signal and subsequently holding the data decision by holding the differential output of the multi-input summation latch in a latched state for a duration determined by the sampling clock.

Parallel decision feedback equalizer partitioned for high throughput

In some disclosed embodiments, a Decision Feedback Equalizer (DFE) processes multiple symbols in parallel using a novel architecture that avoids violating a timing constraint. The DFE comprises Feed-Back (FB) filters that can be configured to equalizing nonlinear phenomena. Using a Look-Up Table (LUT)-based implementation, the FB filters may implement complex nonlinear functions at low hardware complexity, low latency and low power consumption. A LUT-based implementation of the FB filter supports adaptive FB filtering to changing channel conditions by updating LUT content.

Analog receiver equalizer architectures for high-speed wireline and optical applications
11218225 · 2022-01-04 · ·

The present invention is directed to communication method and techniques. In a specific embodiment, the present invention provides a receiver that interleaves data signal n-ways for n slices. Each of the n slices includes feedforward equalizer and decision feedback equalizers that are coupled to other slices. Each of the n slices also includes an analog-to-digital converter section that includes data and error slicers. There are other embodiments as well.