Patents Examined by James M Perez
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Patent number: 11979163Abstract: Example systems, read channels, and methods provide an oversampled digital phase lock loop for use in a read channel. The phase lock loop receives a digital data signal comprised of oversampled digital signal values with a sample rate that is a multiple of the baud rate of the channel. A set of oversampled digital signal values is selected for each iteration of the phase lock loop to correct the phase of an analog-to-digital converter. The phase lock loop determines a phase gradient, based on an iterative detector, and feeds back a phase correction for the next iteration of the phase lock loop. A baud rate digital data signal is provided to the rest of the channel based on down sampling or interpolated based on the phase gradient.Type: GrantFiled: October 3, 2022Date of Patent: May 7, 2024Assignee: Western Digital Technologies, Inc.Inventors: Iouri Oboukhov, Derrick E. Burton, Richard Galbraith
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Patent number: 11979263Abstract: A wire-line transceiver is configured to perform a serial loop back test. The wire-line transceiver includes an on-chip transmitter, an on-chip receiver and a fractional feed forward equalizer circuit (fractional FFE circuit) in a serial loop back line path between the on-chip transmitter and the on-chip receiver. The fractional FFE circuit is configured to induce a delay one of less than one symbol time of data, for enhancing an eye opening from the serial loop back line during the serial loop back test, compared to a situation where the fractional FFE circuit is not present or is not used.Type: GrantFiled: July 25, 2022Date of Patent: May 7, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Vishal Khatri, Tamal Das, Umamaheswara Reddy Katta
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Patent number: 11968005Abstract: Method and device(s) for providing precoder selection policy for a multi-antenna transmitter arranged to transmit data over a communication channel of a wireless communication network. Machine learning in the form of reinforcement learning is applied involving adaptation of an action value function configured to compute an action value based on information indicative of a precoder of the multi-antenna transmitter and of a state relating to at least the communication channel. The adaptation being further based on reward information provided by a reward function, indicative of how successfully data is transmitted over the communication channel, and the precoder selection policy is provided based on the adapted action value function resulting from the reinforcement learning.Type: GrantFiled: September 12, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Heunchul Lee, Maksym Girnyk
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Patent number: 11968063Abstract: A single-wire communication system and a control method of the single-wire communication system are disclosed. A single-wire communication system includes a single-wire, a first communication module and a second communication module. The first communication module includes a plurality of current conveyors so as to communicate high-speed signals only with current freely from a capacitive load of the single-wire. The first communication module is connected to one side of the single-wire. The second communication module includes a plurality of current conveyors so as to communicate high-speed signals only with current freely from a capacitive load of the single-wire. The second communication module is connected to another side of the single-wire.Type: GrantFiled: June 24, 2021Date of Patent: April 23, 2024Inventors: Sang-hyun Han, Jae-sung An
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Patent number: 11955606Abstract: The present invention relates to a wireless communication method in a battery pack and a master BMS for providing the method.Type: GrantFiled: August 10, 2021Date of Patent: April 9, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventor: Ho Byung Yoon
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Patent number: 11956111Abstract: A computer-implemented method for reducing crest factor by an electronic device includes: receiving a plurality of first samples of a first input signal. The plurality of first samples are generated at a first sampling rate. A first peak detection is performed based on the plurality of first samples to generate a plurality of first peak detection output samples. A plurality of first windowing input samples are generated at a second sampling rate by downsampling the plurality of first peak detection output samples. A plurality of first windowing output samples are generated based on the plurality of first windowing input samples. A plurality of first peak reduction samples are generated at the first sampling rate by upsampling the plurality of first windowing output samples. A first output signal is generated based on the plurality of first samples and the plurality of first peak reduction samples.Type: GrantFiled: February 14, 2020Date of Patent: April 9, 2024Assignee: Huawei Technologies Co., Ltd.Inventor: Huei Yuan Shih
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Patent number: 11936390Abstract: Disclosed is a low-power fractional-N phase-locked loop circuit, which comprises a phase detector, a voltage-to-current converter, a loop filter, a voltage-controlled oscillator, a frequency divider and a digital logic processor; the phase detector, the voltage-to-current converter, the loop filter, the voltage-controlled oscillator and the frequency divider are connected in sequence; a reference signal is input from the phase detector, the phase detector detects the phases of the reference signal and a feedback signal with a quantization error output by the frequency divider, compensates a quantization phase error generated by fractional frequency division, and outputs a compensated phase detection result to the voltage-to-current converter; the quantization error generated by fractional frequency division is converted into a voltage domain through a digital domain or directly coupled to a phase error signal in the phase detector to complete the compensation of the quantization error.Type: GrantFiled: October 25, 2022Date of Patent: March 19, 2024Assignee: ZHEJIANG UNIVERSITYInventors: Xiang Gao, Gaofeng Jin, Fei Feng
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Patent number: 11901977Abstract: Techniques are provided for a delay compensated analog beam forming network. A transceiver implementing the techniques according to an embodiment includes an array of circuit elements. Each of the circuit elements includes an analog frequency converter to up-convert an analog signal to radio frequency (RF) for transmission and to down-convert an RF signal to an analog signal for reception. The circuit element also includes an analog beam weighting circuit configured to apply a beam weight to both of the analog signals to form a beam for transmission and reception. The circuit element further includes an analog delay element configured to impart a time delay to the analog signals. The time delay is based on the position of the circuit element in the array and is selected to compensate for propagation delay of the analog signals along the electrical path that couples the circuit elements of the array, reducing beam squint.Type: GrantFiled: January 14, 2022Date of Patent: February 13, 2024Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventor: Tareef Al-Mahdawi
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Patent number: 11894959Abstract: Methods, systems, and apparatus described herein make a multi-level PAM signal (PAM-N signal) at a transmitter using CMOS-based components. By forming the PAM-N signal at the transmitter, receivers do not have to recombine and/or realign multiple signals and only employs a single transmission line channel (or two transmission line channels in differential implementations) to convey the data stream to the receiver from the transmitter.Type: GrantFiled: July 25, 2022Date of Patent: February 6, 2024Assignee: XILINX, INC.Inventors: Ronan Sean Casey, Lokesh Rajendran, Declan Carey, Kevin Zheng, Catherine Hearne, Hongtao Zhang
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Patent number: 11888553Abstract: Inter-alia, an apparatus is disclosed comprising: at least one power amplifier coupled to at least one radio frequency power storage device, wherein the at least one power amplifier is configured to supply power to the at least one radio frequency power storage device, wherein the at least one power amplifier provides power to be used to amplify one or more radio frequency signals; wherein the at least one radio frequency power storage device is configured to store the power of the at least one power amplifier for a certain time period; and one or more antenna elements coupled to the at least one radio frequency power storage device, wherein the at least one radio frequency power storage device is configured to output stored power to at least one of the one or more antenna elements, wherein the power is output variably dependent upon a power demand of a required radio frequency power and/or amplitude needed to transmit the one or more radio frequency signals, wherein the power demand represents a power demandType: GrantFiled: October 18, 2019Date of Patent: January 30, 2024Assignee: NOKIA TECHNOLOGIES OYInventors: Wolfgang Zirwas, Rakash Sivasiva Ganesan, Berthold Panzner
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Patent number: 11888608Abstract: Embodiments of this application disclose a data transmission method, apparatus, and system in backscatter communication, to improve spectrum usage efficiency of data. An embodiment of this application provides a data transmission method in backscatter communication, including: generating a first frame, where the first frame carries first data and second data, the first data and the second data in the first frame use different modulation schemes, the first data is sent to a first tag, and the second data is sent to a second tag; and sending the first frame to the first tag and the second tag.Type: GrantFiled: March 16, 2022Date of Patent: January 30, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Tao Wu, Teyan Chen
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Patent number: 11881974Abstract: Disclosed is a modulation method for modulating n-bit data (n=p+q+r). The modulation method includes forming a time difference between a data impulse and a sync impulse to correspond to p-bit data, modulating the amplitude of the sync impulse to correspond to q-bit data and modulating the amplitude of the data impulse to correspond to r-bit data, and combining the sync impulse and the data impulse. As an example, n may be equal to p+q+r.Type: GrantFiled: August 24, 2021Date of Patent: January 23, 2024Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITYInventors: Tae Wook Kim, Geun Haeng Lee
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Patent number: 11881969Abstract: A receiver for a serial data link, including an analog front end (AFE) including a continuous-time linear equalizer (CTLE) configured to receive an input signal from a transmitter, the CTLE including a first output node; a second output node; a plurality of programmable tail current sources configured to adjust a direct current (DC) offset between the first output node and the second output node; and a calibration circuit including: a slicer configured to output a difference between a first average output voltage corresponding to the first output node and a second average output, voltage corresponding to the second output node; and a calibration counter configured to increment or decrement an offset count based on the difference, wherein the plurality of programmable tail current sources are adjusted based on a value of the offset count.Type: GrantFiled: August 10, 2022Date of Patent: January 23, 2024Assignee: Samsung Display Co., Ltd.Inventors: Anup P Jose, Sam Ray, Ali Fazli Yeknami, Amir Amirkhany
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Patent number: 11881932Abstract: A random phase modulation method depending on a communication distance is provided. In the method, time synchronization is carried out by means of a transmitter and a receiver, a local random signal is generated, and an original signal to be sent is pre-coded according to a transmission delay and the generated local random signal, such that random phase modulation depending on a communication distance is realized, potential security brought about by positions of the transmitter and the receiver is fully utilized, a receiver at an expected distance position can receive a signal with a correct phase, and a receiver at another distance position receives a signal with a scrambled phase, thereby improving the secure communication capability of a wireless communication system in terms of the dimension of space.Type: GrantFiled: April 29, 2021Date of Patent: January 23, 2024Assignee: University of Electronic Science and Technology of ChinaInventors: Guangrong Yue, Daizhong Yu, Lin Yang
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Patent number: 11876661Abstract: System and methods for shaped single carrier orthogonal frequency division multiplexing with low peak to average power ratio are provided. The system receives an input signal and modulates the input signal to form Dirichlet kernels in a time domain to generate an offset Dirichlet kernel output time array where each Dirichlet kernel has a main lobe and a plurality of side lobes. Modulating the input signal suppresses a peak to average power ratio of the offset Dirichlet kernel output time array by reducing the plurality of side lobes of each Dirichlet kernel and respective amplitudes of the side lobes.Type: GrantFiled: January 13, 2023Date of Patent: January 16, 2024Assignee: Spectral DSP Corp.Inventors: Fredric J. Harris, Martial Gander
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Patent number: 11870880Abstract: A digital clock data recovery circuit including: a first vote circuit connected at an output of a first deserializer and configured to generate an even up/down signal based on even deserialized signals from the first deserializer; a first digital to analog converter (DAC) connected at an output of the first vote circuit and configured to control a voltage and/or frequency of a voltage controlled oscillator (VCO) based on the even up/down signal from the first vote circuit; a second vote circuit connected at an output of a second deserializer and configured to generate an odd up/down signal based on odd deserialized signals from the second deserializer; and a second DAC connected at an output of the second vote circuit and configured to control the voltage and/or frequency of the VCO based on the odd up/down signal from the second vote circuit.Type: GrantFiled: April 5, 2022Date of Patent: January 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Younghoon Song, Anup P. Jose
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Patent number: 11870620Abstract: A receiver and method for compensating for linear impairments at a receiver including receiving an Rx signal including an asymmetric response of a satellite filter; pre-equalizing the Rx signal with a coefficient; and demodulating, after the pre-equalizing, the Rx signal.Type: GrantFiled: December 29, 2021Date of Patent: January 9, 2024Assignee: Hughes Networks SystemsInventor: Bala Subramaniam
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Patent number: 11870539Abstract: A method for dispatching radio coverage drones to a geographical area of a failing node in a radio network, wherein the radio coverages drones are configured to re-establish operability of the failing node is disclosed.Type: GrantFiled: December 19, 2019Date of Patent: January 9, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Badawi Yamine
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Patent number: 11863357Abstract: Examples described herein relate to determining whether a device can re-train settings of one or more components of another device. Some examples include conducting link re-training by: receiving, by a receiver in a first device, signals over a lane from a transmitter in a second device, the signals comprising a first communication identifying capability to re-train a link; transmitting, from the first device, a second communication including one or more components of a second device with capability to be adjusted and a request to modify one or more parameters of the one or more components; and receiving, at the first device, a third communication identifying a status of re-training. In some examples, the one or more components comprise an equalizer and the one or more parameters comprises at least one tap setting. In some examples, the one or more parameters comprise a precursor, main cursor or post-cursor equalization setting.Type: GrantFiled: September 16, 2020Date of Patent: January 2, 2024Assignee: Intel CorporationInventor: Bruce McLoughlin
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Patent number: 11863367Abstract: Multimedia codecs (compression methods), based only on FFT (Fast Fourier Transform) have been recently proposed. These codecs use the largest points (foreground) and the most energetic bands (background). Medium quality versions are based on the largest local peaks only. The phases can be ignored with the largest local peaks or in the background. Alternatively, sine and cosine amplitudes can be used. This invention describes methods for giving utility to the reintroduced phases, in particular: local peaks are grouped to have a very narrow bandwidth, with the phases containing the displacements of these peaks, and we transport data and the points of the foreground in the phases of the background. High speed communications are supported using techniques similar to OFDM (Orthogonal Frequency-Division Multiplexing). These processes are intended to be used in particular with connected objects and in the physical layers of computer networks.Type: GrantFiled: August 20, 2021Date of Patent: January 2, 2024Inventor: Georges Samake