Patents Examined by Shawkat M Ali
  • Patent number: 11563479
    Abstract: A test transmission can be used to train and/or select a signal. For example, a cellular network can configure a receiver with a recommended receiver signal sweeping pattern for mobile devices. A transmitter device can duplicate a data packet transmission and send it to a receiver device to ensure that the receiver can receive the duplicated packets from different signals. Consequently, the duplicated data packet can be indicated in the associated control channel so that the receiver is aware that the data packet is a duplicated transmission, and based on this info and configuration data, the receiver can select a more favorable signal.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: January 24, 2023
    Inventors: Xiaoyi Wang, Salam Akoum
  • Patent number: 11558126
    Abstract: An echo estimation system includes a transceiver circuitry and a processor circuitry. The processor circuitry is coupled to the transceiver circuitry. The processor circuitry is configured to calculate linear echo power and non-linear echo power based on a signal under test in the transceiver circuitry. The linear echo power and the non-linear echo power are utilized to determine a quality of the transceiver circuitry or utilized to determine component parameters of the transceiver circuitry.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: January 17, 2023
    Inventors: Bo-Rong Huang, Cheng-Hsien Li, Tsung-En Wu, Yu-Tung Liao
  • Patent number: 11558090
    Abstract: A system and method of optimizing a selection of an antenna on an information handling system comprising executing a sensor module to receive data from a plurality of sensors for tracking orientations, configurations, and locations of the information handling system and an antenna performance tracking system for measuring antenna performance parameters at a plurality of locations and training an antenna selection machine learning algorithm of an antenna selection machine learning module with training inputs of the orientations, configurations, and antenna performance parameters for a plurality of locations to determine an antenna system recommendation from a plurality of available antenna systems deployed on the information handling system. Executing the trained antenna selection machine learning module with operating inputs for an orientation and configuration at an operation location to determine a recommended antenna system from the plurality of available antenna systems for use in wireless communication.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: January 17, 2023
    Assignee: Dell Products, LP
    Inventors: Jace W. Files, Liam B. Quinn, Abu S. Sanaullah
  • Patent number: 11558020
    Abstract: A transmission circuit includes a power amplifier, a power amplifier forestage circuit and a signal strength adjusting circuit. The power amplifier is configured to amplify an input signal to output an output signal. The power amplifier forestage circuit is configured to output the input signal. The signal strength adjusting circuit includes a conversion circuit, a processing circuit and a storage unit. The conversion circuit is configured to convert the voltage of the output signal into an operation value. The processing circuit is configured to perform an operation according to a target index value stored by the storage unit and the operation value to obtain a differential value. The processing circuit is further configured to adjust the input signal outputted by the power amplifier forestage circuit according to the differential value, so that the power of the output signal is maintained at a target power value.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: January 17, 2023
    Inventors: Beng-Meng Chen, Chien-Jung Huang, Yi-Hua Lu
  • Patent number: 11558070
    Abstract: With advanced compute capabilities and growing convergence of wireless standards, it is desirable to run multiple wireless standards, e.g., 4G, 5G NR, and Wi-Fi, on a single signal processing system. Automatic gain control (AGC) is a process of converging on a gain level for optimum signal reception considering the dynamic range of all the components in the receive chain, including analog and digital parts. For certain wireless standard such as Wi-Fi, AGC is required to complete within a short interval. Both RF and baseband gains have to be adjusted within this short time. Discloses in the present disclosure are embodiments of a high-speed and low pin-count interface between an RF circuit and a baseband circuit for AGC communication. The high-speed interface provides a light-weight serial protocol over one or more low-voltage differential signaling (LVDS) channels to meet a low-latency requirement for gain updates.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: January 17, 2023
    Assignee: EdgeQ, Inc.
    Inventor: Narendra M Acharya
  • Patent number: 11552625
    Abstract: Disclosed is a transmitting device comprising two galvanically isolated sub-circuits. The first sub-circuit comprises: a carrier signal source for outputting a carrier signal; a digital signal source for outputting binary signal levels; and a logic component for performing an AND operation on two input signals. The second sub-circuit comprises: a signal input; a signal output; and a first RC element, the signal input, the signal output and the RC element being connected in parallel to one another with respect to a second reference potential. A first isolating capacitor is connected between the first logic output and the signal input for galvanic isolation. A second isolating capacitor is connected between the first reference potential and the second reference potential for galvanic isolation.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: January 10, 2023
    Assignee: Endress+Hauser SE+Co. KG
    Inventors: Ghislain Daufeld, Arnd Kempa, Roland Grozinger, Stefan Scherr
  • Patent number: 11546004
    Abstract: Aspects of the disclosure relate to an apparatus for wireless communication. The apparatus may include a set of power detectors configured to generate a set of analog signals related to a set of output signal power levels of a set of transmit chains of a transmitter, respectively; an analog summer; a set of switching devices configured to send a selected one or more of the set of analog signals to the analog summer, and substantially isolated unselected one or more of the set of power detectors from the analog summer, wherein the analog summer is configured to generate a cumulative analog signal based on a sum of the selected one or more of the set of analog signals; an analog-to-digital converter (ADC) configured to generate a digital signal based on the cumulative analog signal; and a controller configured to control the set of switching devices.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: January 3, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Meysam Azin, Li Lu, Anees Habib, Chinmaya Mishra, Damin Cao, Arul Balasubramaniyan, David Ta-hsiang Lin, Shuang Zhu, Dinesh Jagannath Alladi
  • Patent number: 11539384
    Abstract: A transmitter with a DC detection circuit that can control when a modulator of the transmitter is active. When data is being transmitted, a tone introduced by a mixer in the transmit path is hidden by the data signal and has minimal effect on the transmit path. However, when there is no data, the tone can cause undesirable noise. A modulator may move the tone or noise outside of the transmitter's bandwidth. As the data can hide the tone, the DSM may only be needed when there is a DC signal. By activating the DSM only when a DC signal is detected, the extra power introduced by the modulator can be reduced while eliminating in-band noise.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: December 27, 2022
    Assignee: Analog Devices, Inc.
    Inventors: Robert D. Solanki, Christopher Mayer
  • Patent number: 11533077
    Abstract: Disclosed is a signaling circuit. A switch circuit generates an internal reference supply voltage and an internal lower supply voltage, from first and second power supply voltages. A transmit circuit drives a high bit from the first power supply voltage, and drives a low bit from the internal lower supply voltage. The second terminal of the data output is connected to the internal reference supply voltage.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: December 20, 2022
    Assignee: Rambus Inc.
    Inventors: Frederick Ware, Carl Werner
  • Patent number: 11528059
    Abstract: A high frequency (HF) radio communications system is disclosed. HF radio communications system comprises a plurality of geographically-distributed HF radio sites comprising a corresponding plurality of receivers, each receiver of the plurality of receivers being configured to: (a) receive, via at least one antenna, respective HF signals throughout a HF band, and (b) directly and concurrently sample a subset of the respective HF signals to provide a respective stream of digital samples, the subset being the respective HF signals that are received over a plurality of HF channels within part of the HF band or all of the HF band; and a central processing server configured to receive a plurality of respective streams of digital samples from the plurality of receivers, being the respective stream of digital samples provided by each receiver of the receivers.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: December 13, 2022
    Inventor: Alexey Kozlov
  • Patent number: 11513147
    Abstract: A noise detection circuit includes a first transistor configured to receive a delayed version of a clock signal; a second transistor configured to receive a delayed version of a reference clock signal; and a latch circuit, coupled to the first transistor at a first node and coupled to the second transistor at a second node, and configured to latch logic states of voltage levels at the first and second nodes, respectively, based on whether a timing difference between transition edges of the clock signal and the reference clock signal exceeds a pre-defined timing offset threshold.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: November 29, 2022
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventor: Tien-Chien Huang
  • Patent number: 11515900
    Abstract: A transmitter circuit applicable to a digital isolator is provided, adapted to receive a data input signal and coupled to an isolation barrier, developing a receiver input signal to a receiver circuit for generating a data output signal. The transmitter circuit generates a transmitter output signal in response to a rising edge and falling edge of the data input signal, and includes a rising and falling converter for outputting a converted data input signal according to the rising edge and falling edge of the data input signal, a delay and logic unit for receiving the converted data input signal and generating a carrier signal, and an AND gate receiving the converted data input signal and the carrier signal, and outputting the transmitter output signal. Since a number of pulses of the carrier signal is limited and definite, the present invention achieves to reduce power consumption and electromagnetic interferences effectively.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: November 29, 2022
    Inventor: Guan-Shun Li
  • Patent number: 11509033
    Abstract: An isolator includes an insulating layer, a first electrode provided on a first side of the insulating layer, and a second electrode provided on a second side of the insulating layer opposite to the first side. The second electrode faces the first electrode across the insulating layer. The insulating layer includes therein a gap between the first electrode and the second electrode. The gap extends along a plane perpendicular to a thickness direction of the insulating layer.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: November 22, 2022
    Inventor: Tatsuya Ohguro
  • Patent number: 11502879
    Abstract: An equalizer includes a first feed-forward stage that provides a measure of low-frequency IS I and a second feed-forward stage that includes a cascade of stages each making an IS I estimate. The IS I estimate from each stage is further equalized by application of the measures of low-frequency IS I from the first feed-forward stage and fed to the next in the cascade of stages. The IS I estimate from the stages thus become progressively more accurate. The number of stages applied to a given signal can be optimized to achieve a suitably low bit-error rate. Power is saved by disabling stages which are not required to meet that goal.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: November 15, 2022
    Assignee: Rambus Inc.
    Inventors: Prashant Choudhary, Nanyang Wang
  • Patent number: 11502815
    Abstract: A signal processing method includes receiving a digital signal including a sequence of samples. For each sample among at least some of the samples, a neighbor-based estimate is calculated over (i) one or more samples that precede the sample in the sequence and (ii) one or more samples that succeed the sample in the sequence, and an error value, indicative of a deviation of the neighbor-based estimate from an actual value of the sample, is calculating. An impairment in the digital signal is estimated based on a plurality of error values calculated for a plurality of the samples.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: November 15, 2022
    Inventors: Hananel Faig, Raanan Ivry
  • Patent number: 11496049
    Abstract: A continuous time digital signal processing (CT DSP) token includes a first signal indicating a change has occurred and a second signal indicating a direction of the change. An amplitude generation circuit operates to generate an amplitude value x in response to the token. A power estimation circuit processes the amplitude value x to generate a digital power signal in accordance with the formula: x2±2x+1.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: November 8, 2022
    Assignees: Universite de Lille, Centre National De La Recherche Scientifique, ISEN Yncrea Hauts-de-France, STMicroelectronics SA
    Inventors: Angel de Dios Gonzalez Santos, Andreas Kaiser, Antoine Frappe, Philippe Cathelin, Benoit Larras
  • Patent number: 11496179
    Abstract: A receiver system for demodulating a high-entropy continuous phase modulation (HE-CPM) signal is disclosed. A plurality of complex multipliers is configured to receive the synchronized HE-CPM signal. Each of the complex multipliers removes a phase associated with a respective one of a plurality of inter-symbol interference (ISI) hypotheses and generates a respective one of a plurality of complex multiplier outputs. Each ISI hypothesis includes a previous chip hypothesis corresponding to a binary value for a previous chip, and a next chip hypothesis corresponding to a binary value for a next chip. A summer is configured to combine real parts of the plurality of complex multiplier outputs to generate a soft decision for a current chip of the HE-CPM signal.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: November 8, 2022
    Assignee: Rockwell Collins, Inc.
    Inventor: Carlos J. Chavez
  • Patent number: 11488071
    Abstract: The present disclosure provides a novel advanced ensemble learning strategy for soft sensor development with semi-supervised model. The main target of the soft sensor is to improve the prediction performance with a limited number of labeled data samples, under the ensemble learning framework. Firstly, in order to improve the prediction accuracy of sub-models for ensemble modeling, a novel sample selection mechanism is established to select the most significantly estimated data samples. Secondly, the Bagging method is employed to both of the labeled and selected data-set, and the two different kinds of datasets are matched based on the Dissimilarity (DISSIM) algorithm. As a result, the proposed method guarantees the diversity and accuracy of the sub-models which are two significant issues of the ensemble learning. In this work, the soft sensor is constructed upon the Gaussian Process Regression (GPR) model.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: November 1, 2022
    Assignee: Jiangnan University
    Inventors: Weili Xiong, Xudong Shi, Bingbin Gu, Xiaoqing Che, Xiaochen Sheng
  • Patent number: 11489557
    Abstract: In the present invention, a transmitting station apparatus includes a training signal generation unit, a transmission end linear equalization unit configured to output a plurality of second data signals obtained by equalizing IAI of a plurality of first data signals by using a transmission end transfer function for equalizing IAI, and a transmitting station communication unit configured to transmit a training signal or the plurality of second data signals to a receiving station apparatus and receive information on the transmission end transfer function from the receiving station apparatus, and the receiving station apparatus includes a communication path estimation unit configured to estimate a communication path response from the training signal received by the receiving station communication unit, a reception end coefficient calculation unit configured to calculate the transmission end transfer function and a reception end transfer function for equalizing ISI, based on the communication path response, and a
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: November 1, 2022
    Inventors: Keita Kuriyama, Hayato Fukuzono, Tsutomu Tatsuta
  • Patent number: 11477061
    Abstract: Wireless digital communication method for the communication between two electronic devices (3, 16) of an industrial apparatus (1), including—encoding each bit of information by a respective sequence of a certain number (N) of pulses (25) that alternate with a corresponding number (N?1) of silence intervals (26), each pulse having a pulse duration (TI) shorter than or equal to ns and said silence intervals having respective silence durations (TSj) longer than or equal to 30 ns—transmitting, by a first electronic device, a radio signal (RS) comprising a plurality of radio pulses corresponding to the sequence of pulses without modulating any radio carrier, and—receiving and decoding, by the other electronic device, said radio signal to obtain said bit of information.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: October 18, 2022
    Assignee: Marposs Societa' Per Azioni
    Inventor: Roberto Padovani