H04L25/49

Multi-mode active circuit control and activation system
09768991 · 2017-09-19 · ·

An active circuit control system that utilizes multiple PWM signals to activate and power an array of active components, requiring minimal wiring between the multi-mode signal conditioner and active components. Signal conditioning and filtering is implemented to allow transmission of power and control signals for multiple components over a single or multiple transmission lines. The circuit can be used to provide supply voltage and control signals for active antennas, switch networks, and other components in communication systems and electronic devices.

Device and method for compensating for nonlinearity of power amplifier

A device configured to perform wireless communication includes: a pre-distortion circuit configured to generate a pre-distorted input signal by performing pre-distortion on an input signal based on a parameter set comprising a plurality of coefficients; a power amplifier configured to generate an output signal by amplifying an RF signal based on the pre-distorted input signal; and a parameter obtaining circuit configured to obtain second memory polynomial modeling information corresponding to an operating frequency band based on first memory polynomial modeling information corresponding to each of a plurality of frequency sections and obtain a parameter set according to an indirect learning structure by using the second memory polynomial modeling information.

Codeword synchronization for fiber channel protocol

Efficient codeword synchronization methods and systems for fiber channel protocol are disclosed. The method includes identifying a codeword boundary by detecting 100-bit known patterns in a bit codeword in a transmission.

Codeword synchronization for fiber channel protocol

Efficient codeword synchronization methods and systems for fiber channel protocol are disclosed. The method includes identifying a codeword boundary by detecting 100-bit known patterns in a bit codeword in a transmission.

Power electronics device, cooperative control method and non-transitory computer readable medium

According to one embodiment, there is provided a power electronics device in which a selects a first power electronics device and a second power electronics device from power electronics devices, based on power attribute information and communication attribute information of each power electronics device, and the first power electronics device is a master of power allocation control of electric energy that the power electronics devices connected to one power line of power lines perform input and output on the one power line, and the second power electronics device is a master of output power phase synchronization control of power which the power electronics devices connected to the one power line outputs to the one power line.

Power electronics device, cooperative control method and non-transitory computer readable medium

According to one embodiment, there is provided a power electronics device in which a selects a first power electronics device and a second power electronics device from power electronics devices, based on power attribute information and communication attribute information of each power electronics device, and the first power electronics device is a master of power allocation control of electric energy that the power electronics devices connected to one power line of power lines perform input and output on the one power line, and the second power electronics device is a master of output power phase synchronization control of power which the power electronics devices connected to the one power line outputs to the one power line.

SAMPLER REFERENCE LEVEL, DC OFFSET, AND AFE GAIN ADAPTATION FOR PAM-N RECEIVER
20170264470 · 2017-09-14 ·

In a PAM-N receiver, sampler reference levels, DC offset and AFE gain may be jointly adapted to achieve optimal or near-optimal boundaries for the symbol decisions of the PAM-N signal. For reference level adaptation, the hamming distances between two consecutive data samples and their in-between edge sample are evaluated. Reference levels for symbol decisions are adjusted accordingly such that on a data transition, an edge sample has on average, equal hamming distance to its adjacent data samples. DC offset may be compensated to ensure detectable data transitions for reference level adaptation. AFE gains may be jointly adapted with sampler reference levels such that the difference between a reference level and a pre-determined target voltage is minimized

INTELLIGENT EQUALIZATION FOR A THREE-TRANSMITTER MULTI-PHASE SYSTEM
20170264471 · 2017-09-14 ·

An intelligent equalization technique is provided for a three-transmitter system in which mid-level transitions are selectively emphasized and de-emphasized to conserve power and reduce data jitter.

MULTIPHASE PREAMBLE DATA SEQUENCES FOR RECEIVER CALIBRATION AND MODE DATA SIGNALING
20170264379 · 2017-09-14 ·

Methods and apparatus are described that facilitate transmission of data, particularly between two devices within an electronic apparatus. In particular, a preamble for transmission in a sequence of symbols over a multi-wire communications interface, such as a MIPI C-PHY interface, is constructed to include one or more symbols each having a single state transition symbols for signaling a particular calibration preamble from a transmitter to a receiver over the multi-wire communications interface. The preamble, having only single state transition symbols, improves reliability of decoding the symbols at a receiver, including reception and decoding without the use of a calibration clock.

Method For Processing A Stream Of Data In A Receiver Device
20220045886 · 2022-02-10 ·

A method for processing, in a receiver device, a signal representative of a stream of data coded from a series of information units through coding using a predefined group of symbols to code each information unit of the series, comprises: —a step of receiving (E0) said signal, said signal having been sent by a sender device via a transmission channel, said received signal containing a sequence of symbols of predefined length, and —a step of combined equalization and decoding (E3) applied to said received signal (Ireceived), using a mesh (100) representing the transmission channel (3) and the coding that is used, the mesh (100) containing a number of nodes (101) representing states of the transmission channel (104), said states of the transmission channel (104) taking into account said coding that is used.