Patents Examined by Nguyen T. Vo
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Patent number: 10790864Abstract: A reception circuit includes a receiver, a noise boosting circuit and a buffer. The receiver generates a positive amplification signal and a negative amplification signal by amplifying a first input signal and a second input signal. The noise boosting circuit adjusts voltage levels of the positive amplification signal and the negative amplification signal based on the first input signal and the second input signal. The buffer generates an output signal by amplifying the positive amplification signal and the negative amplification signal.Type: GrantFiled: June 17, 2020Date of Patent: September 29, 2020Assignee: SK hynix Inc.Inventor: Hyun Bae Lee
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Patent number: 10784911Abstract: A local oscillation device according to the present invention includes: a first local oscillator to output a first local oscillation wave synchronized with a reference signal, the first local oscillator being turned on/off on the basis of a control signal; a second local oscillator to output a second local oscillation wave synchronized with the reference signal and the same in frequency and phase as the first local oscillation wave, the second local oscillator being turned on/off on the basis of the control signal; and a path switching circuit coupled to the first local oscillator and the second local oscillator, the path switching circuit switching paths of the first local oscillation wave and the second local oscillation wave on the basis of the control signal or a signal synchronized with the control signal.Type: GrantFiled: January 11, 2018Date of Patent: September 22, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroyuki Mizutani, Hideyuki Nakamizo, Kenichi Tajima
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Patent number: 10784913Abstract: A wearable electronic device includes a first member and a second member. The second member includes a first, RF-attenuating, portion and a second, electrically conductive portion. A gap exists between the first member and at least the second portion of the second member. One or more transmitter/receivers, such as one or more BLUETOOTH®, BLUETOOTH® low energy, and/or IEEE 802.11 transceivers may be mounted in the first member. The one or more transmitter/receivers are conductively coupled to the second portion of the second member. RF signals generated by the one or more transceivers are emitted from the second portion of the second member.Type: GrantFiled: July 10, 2017Date of Patent: September 22, 2020Assignee: Intel CorporationInventors: Aycan Erentok, Huan-Sheng Hwang, John Groff, Thomas H. Liu
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Patent number: 10784566Abstract: A wireless device includes a first transceiver circuit, a power splitter, a first directional antenna, and a second directional antenna. The first directional antenna is connected to a second end of the power splitter and has a first feeding portion and a first radiation unit, and the first feeding portion has a first line length. The second directional antenna is connected to a third end of the power splitter and has a second feeding portion and a second radiation unit, and the second feeding portion has a second line length. A phase difference is provided between the first directional antenna and the second directional antenna. The first transceiver circuit forms, through the first directional antenna, the second directional antenna and the predetermined phase difference, a predetermined pattern to transmit or receive signals, and the predetermined pattern has omnidirectionality.Type: GrantFiled: September 16, 2019Date of Patent: September 22, 2020Assignee: WISTRON NEWEB CORPORATIONInventors: Jui-Chih Chang, Wei-Kai Chen, Yu-Hsiang Chang
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Patent number: 10784910Abstract: Embodiments of the present invention include a system, method and computer program product for mitigating interference in data received by a multiple antenna array. Processor(s) executing program code identify signals from users, including active users, and by identifying these signals, mitigate interference and jamming in the received data, overall.Type: GrantFiled: September 27, 2019Date of Patent: September 22, 2020Assignee: Perspecta Labs Inc.Inventors: Nicholas Chang, Joseph C. Liberti
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Patent number: 10780839Abstract: A telescopic mechanism includes a mounting base, a telescopic block received within the mounting base, and a pushing rod received within the mounting base. The telescopic block is vertically arranged in the mounting base, and the pushing rod is horizontally arranged in the mounting base. The telescopic block defines a guiding channel. The pushing rod passes through the guiding channel. The pushing rod is driven through the guiding channel to cause the telescopic block to extend or retract relative to the mounting base.Type: GrantFiled: December 11, 2018Date of Patent: September 22, 2020Assignees: HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Xi-Hang Li, Zheng-Hu Jiang, Hui Ju, Yan-Fang Yan
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Patent number: 10784972Abstract: A method and apparatus for performing TRP measurements of an antenna system uses a sampling grid that takes into account the spherical geometry and the directivity of the antenna under test, while considering test time. The optimization of the sampling grid balances the trade-off between reducing the number of samples to reduce test time, and ensuring accuracy of the TRP estimates.Type: GrantFiled: August 16, 2017Date of Patent: September 22, 2020Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Joakim Axmon, Thomas Chapman, Torbjörn Elfström, Esther Sienkiewicz
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Patent number: 10771030Abstract: Aspects of this disclosure relate to a VLIF receiver with automatic phase noise adjustment. The presence of an interfering signal is sensed within a bandwidth around a desired channel frequency. Then the local oscillator phase noise is automatically adjusted to optimize blocking. The phase noise adjustment includes increasing the bandwidth of a phase-locked loop.Type: GrantFiled: August 21, 2019Date of Patent: September 8, 2020Assignee: Analog Devices International Unlimited CompanyInventor: Niall Kevin Kearney
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Patent number: 10772058Abstract: The present invention provides a muting configuration for reference signal (RS) transmission as a pattern defined by at least the combination of a muting sequence and a reference point. Muting occasions for a given wireless communication network cell thus are differentiated from another cell by use of a different muting sequence, a different reference point, or both. Moreover, in one or more embodiments, the present invention provides for the use of a common muting sequence or reference point across cells, with muting occasions being differentiated between cells through use of different reference points (in the case of a common muting sequence), or through use of different muting sequences (in the case of a common reference point), or different sequences and different reference points.Type: GrantFiled: June 25, 2019Date of Patent: September 8, 2020Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Iana Siomina, Muhammad Kazmi, Tao Cui, Elena Myhre
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Patent number: 10749614Abstract: Aspects of the subject disclosure may include, for example, a system for transmitting a source test signal directed to a second system of a distributed communication system for a retransmission of the source test signal by the second system and a plurality of other systems of the distributed communication system, receiving a plurality of returned test signals from the second system, wherein the plurality of returned test signals corresponds to a retransmission of the source test signal by at least one of the plurality of other systems, and determining from the plurality of returned test signals whether any one of the plurality of other systems is experiencing an operational fault based on an expected round trip delay for each of the plurality of returned test signals. Other embodiments are disclosed.Type: GrantFiled: January 16, 2019Date of Patent: August 18, 2020Assignee: AT&T Intellectual Property I, L.P.Inventors: Paul Shala Henry, Irwin Gerszberg
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Patent number: 10742244Abstract: A device has a first switch in a first transmit path coupled between an output of a first DAC (digital-to-analog converter) in the first transmit path and an input of a first baseband filter in the first transmit path. The device also includes a second switch coupled between the output of the first DAC and an input of a second baseband filter in a second transmit path. The second switch is permanently open. The device also has a third switch and a fourth switch. The third switch is coupled between an output of a second DAC in the second transmit path and the input of the second baseband filter. The fourth switch is coupled between the output of the second DAC and the input of the first baseband filter.Type: GrantFiled: December 3, 2019Date of Patent: August 11, 2020Assignee: QUALCOMM IncorporatedInventors: Ayush Mittal, Arnab Chakraborty, Krishnaswamy Thiagarajan
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Patent number: 10734971Abstract: Disclosed is receiver for a noise limited system. A front-end circuit amplifies and band-limits an incoming signal. The amplification increases the signal swing but introduces both thermal and flicker noise. A low-pass band limitation reduces the thermal noise component present at frequencies above what is necessary for correctly receiving the transmitted symbols. This band limited signal is provided to the integrator circuit. The output of the integrator is equalized to reduce the effects of inter-symbol interference and then sampled. The samples are used to apply low frequency equalization (i.e., in response to long and/or unbalanced strings of symbols) to mitigate the effects of DC wander caused by mismatches between the number of symbols of each kind being received.Type: GrantFiled: February 15, 2019Date of Patent: August 4, 2020Assignee: Rambus Inc.Inventors: Masum Hossain, Carl W. Werner
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Patent number: 10727886Abstract: A crystal-free radio includes an antenna; a receiver configured to communicate with the antenna; a local radio frequency (RF) oscillator configured to communicate with the receiver; and a clock circuit configured to communicate with the receiver and the local RF oscillator, the clock circuit having an electronic circuit oscillator. The local RF oscillator is a free-running oscillator. The clock circuit is configured to receive a calibration signal via a wireless network and calibrate the electronic circuit oscillator based on the received calibration signal, and the clock circuit is a crystal-free clock circuit.Type: GrantFiled: May 8, 2017Date of Patent: July 28, 2020Assignee: The Regents of the University of CaliforniaInventors: Kristofer S. J. Pister, Osama Ullah Khan, Bradley Wheeler, David C. Burnett
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Patent number: 10727815Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to measure a resonant sensor based on detection of group delay. An example apparatus includes a modulation manager configured to query the resonant sensor with a modulated signal including a frequency; and a resonance determiner configured to determine a resonance frequency of the resonant sensor based on a group delay associated with the resonant sensor and the frequency.Type: GrantFiled: June 19, 2019Date of Patent: July 28, 2020Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Jeronimo Segovia Fernandez, Peter Smeys, Ali Djabbari
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Patent number: 10727570Abstract: An electronic device may be provided with a display and a phased array antenna that transmits radio-frequency signals at frequencies greater than 10 GHz. The display may include a conductive layer that is used to form pixel circuitry and/or touch sensor electrodes. A filter may be formed from conductive structures within the conductive layer. The conductive structures may include an array of conductive patches separated by slots or may include conductive paths that define an array of slots. The filter may include an additional array of conductive patches stacked under the array of conductive patches to allow the slots to be narrower than would be resolvable to the unaided human eye. The periodicity of the conductive structures and the slots in the filter may be selected to tune a cutoff frequency of the filter to be greater than frequencies handled by the phased antenna array.Type: GrantFiled: January 30, 2018Date of Patent: July 28, 2020Assignee: Apple Inc.Inventors: Simone Paulotto, Matthew A. Mow, Mattia Pascolini
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Patent number: 10727884Abstract: A reception circuit includes a receiver, a noise boosting circuit and a buffer. The receiver generates a positive amplification signal and a negative amplification signal by amplifying a first input signal and a second input signal. The noise boosting circuit adjusts voltage levels of the positive amplification signal and the negative amplification signal based on the first input signal and the second input signal. The buffer generates an output signal by amplifying the positive amplification signal and the negative amplification signal.Type: GrantFiled: June 6, 2019Date of Patent: July 28, 2020Assignee: SK hynix Inc.Inventor: Hyun Bae Lee
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Patent number: 10727562Abstract: Aspects of the disclosure include commanding an antenna to a first orientation relative to a structure that the antenna is mounted to, obtaining at least one measurement from at least one sensor, wherein the at least one measurement represents a first magnitude and a first direction of a displacement of the antenna relative to the first orientation, determining that the displacement of the antenna relative to the first orientation exceeds a threshold in terms of the first magnitude, the first direction, or a combination thereof, responsive to the determining that the displacement of the antenna relative to the first orientation exceeds the threshold, identifying at least one piezoelectric device to engage to cause the antenna to assume a second orientation relative to the structure, and responsive to the identifying, commanding the at least one piezoelectric device to engage to cause the antenna to assume the second orientation.Type: GrantFiled: April 23, 2019Date of Patent: July 28, 2020Assignee: AT&T Intellectual Property I, L.P.Inventors: Matthew D. Hanson, Daniel Redmond, Charles M. Stahulak, Dennis Martin
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Apparatus and method for dynamically stabilizing current limiting in a portable communication device
Patent number: 10700602Abstract: A battery operated portable communication device is provided with improved transmitter current limit stabilization via a current limit stabilization circuit operatively coupled to the battery and a DC-to-DC converter of the transmitter. The current limit stabilization circuit provides a variable stabilizing reference voltage which is directly proportional to the supply voltage. The current limit stabilization circuit generates a voltage limit output voltage that controls both the power to the transmitter (120) and limits current to the transmitter.Type: GrantFiled: October 16, 2019Date of Patent: June 30, 2020Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Kevin Alonso, David W. Henry, Michael Hand -
Patent number: 10700419Abstract: The present invention relates to an active antenna system comprising a plurality of antennas (2), a radio equipment (3) connected to the antennas (2) and being located adjacent to the antennas (2), wherein the radio equipment (3) comprises for each antenna (2) a separate transceiver module (12).Type: GrantFiled: July 30, 2018Date of Patent: June 30, 2020Assignee: Global Invest Properties Holding AGInventors: Clemens Rheinfelder, Michael Tauber
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Patent number: 10694011Abstract: A smart light guide battery cover and a mobile terminal are provided. The smart light guide battery cover is arranged above a battery of the mobile terminal, and comprises: at least one LED lamp connected to the battery, a battery rear cover arranged above the at least one LED lamp and capable of transmitting lights, and a light guide film arranged above the battery rear cover and configured to guide the lights. In the present application, the light guide film is applied to the smart battery cover for the first time, and thus the battery cover may guide the lights, meeting the personalized demands of the customer.Type: GrantFiled: March 31, 2017Date of Patent: June 23, 2020Assignee: JRD COMMUNICATION (SHENZHEN) LTDInventors: Zhiguo Hu, Dongshui Su, Benzhi Ye, Huajun Cheng, Ruilin Hou, Xieyuan Lin