Signal Strength Patents (Class 455/226.2)
  • Patent number: 11982730
    Abstract: A measurement system includes a gain chain configured to amplify an analog input signal; a range selector configured to select a gain between the analog input signal and a plurality of analog-to-digital converter (ADC) outputs from a plurality of ADCs, wherein each ADC output has a path, and a gain of each output path is made up of a plurality of gain stages in the gain chain; and a mixer configured to combine the plurality of ADC outputs into a single mixed output.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: May 14, 2024
    Assignee: Lake Shore Cryotronics, Inc.
    Inventor: Houston Fortney
  • Patent number: 11936437
    Abstract: The invention is directed to a signal-strength compensating unit (100) for providing a temperature-compensated received-signal-strength indication value of a wireless signal (W) received by an external wireless receiver from an external wireless transmitter (106).
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: March 19, 2024
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Hugo Jose Krajnc, Peter Deixler, Hendrik Stevens
  • Patent number: 11910255
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) measure and report cell measurements for neighboring cells to assist the wireless network with handover decisions. In some cases, the UE may be configured to report beam-level measurements for just a subset of neighboring cells instead of each neighboring cell. For example, the UE may measure, or report beam measurements for a subset of the neighboring cells which meet configured criteria or are included in a subset of cells configured by the serving cell. Techniques for configuring and maintaining the subset of cells are described herein. For example, the cells in the subset may be configured by the UE or the serving cell of UE. A cell may also be removed from the subset if the cell does not continue to meet criteria for being included in the subset.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Peng Cheng, Huichun Liu
  • Patent number: 11877343
    Abstract: Methods and systems for cellular device detection are presented. A signal processing receiver operable to determine a plurality of uplink parameters according to a downlink broadcast message. The signal processing receiver is also configurable to receive an uplink message according to the plurality of uplink parameters, thereby determining a presence and/or an identity of a cellular device by decoding the uplink message.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: January 16, 2024
    Assignee: Epiq Solutions
    Inventors: Keith Blankenship, John Orlando, Aaron Madsen, Michael Johnson
  • Patent number: 11824580
    Abstract: A communication system is described. The communication system includes a number of nodes which frequency hop without coordination from a frequency table. To establish communication, the nodes scan across a band for one or more signals of interest. The signals of interest include one or more of a synchronization signal, a control signal, and a traffic signal. When transmitting the signals of interest, the nodes determine one or more characteristic for the signal, such as a channel, based on a spectral occupancy of interferers in the band.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: November 21, 2023
    Assignee: Rockwell Collins, Inc.
    Inventors: John V. Thommana, Syed A. Ahmed
  • Patent number: 11626803
    Abstract: A switching power converter is provided that adaptively changes the on-time period for an auxiliary switch transistor to locate a boundary between sufficient and insufficient energy.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: April 11, 2023
    Assignee: Dialog Semiconductor Inc.
    Inventors: Wenduo Liu, Cong Zheng, Xiaoyan Wang, Pengju Kong
  • Patent number: 11619673
    Abstract: Methods, apparatuses, systems, and computer program products for lifetime battery tracking using a wireless interface are disclosed. During production and assembly of a battery pack, the location of a battery module in a production line is tracked using detected signal strengths from a wireless transmitter of a battery module monitoring system. During the life of the battery module, the battery module monitoring system provides battery usage data that can be combined with vehicle data for diagnostic analysis.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: April 4, 2023
    Assignee: Sensata Technologies, Inc.
    Inventors: Jing Deng, Stephen C. Millen, Jonathan M. Rigelsford
  • Patent number: 11569853
    Abstract: Systems, methods, and computer program product embodiments are disclosed for removing any fixed frequency interfering signal from an input signal without introducing artifacts that are not part of the original signal of interest. An embodiment operates by using a virtual buffer with a length that matches a length of one cycle of an interfering signal. The embodiment extracts the interfering signal into the virtual buffer. For a sample in the next cycle of the interfering signal that corresponds to a virtual memory location for the virtual buffer, the embodiment can update one or more physical memory locations of the virtual buffer that are in the vicinity of the virtual memory location. This use of virtual buffer can remove any interfering signal without creating the artifacts associated with conventional notch filters.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: January 31, 2023
    Assignee: BioSig Technologies, Inc.
    Inventors: Budimir S. Drakulic, Sina Fakhar, Thomas G. Foxall, Branislav Vlajinic
  • Patent number: 11522741
    Abstract: A method of a receiver is used for receiving an amplitude shift keyed signal provided over a multi-layered transmission from a plurality of antennas with different precoding of different symbols for the respective layers. The method comprises receiving a sequence of signal values of the signal, estimating, from the sequence of signal values, channels for the respective layers, and selecting one of a plurality of detection methods based on a difference in quality between the estimated channels A receiver and a computer program are also disclosed.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: December 6, 2022
    Inventors: Leif Wilhelmsson, Erik G. Larsson, Emil Björnson
  • Patent number: 11513190
    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to test RADAR integrated circuits. A radar circuit comprising a local oscillator (LO), a transmitter coupled to the LO and configured to be coupled to a transmission network, a receiver configured to be coupled to the transmission network, and a controller coupled to the LO, the transmitter, and the receiver, the controller to cause the LO to generate a frequency modulated continuous waveform (FMCW), cause the transmitter to modulate the FMCW as a modulated FMCW, cause the transmitter to transmit the modulated FMCW via the transmission network and the receiver to obtain a received FMCW from the transmission network, and in response to obtaining the received FMCW from the receiver, generate a performance characteristic of the radar circuit based on the received FMCW.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: November 29, 2022
    Assignee: Texas Instruments Incorporated
    Inventors: Karthik Subburaj, Zahir Ibrahim Parkar, Krishnanshu Dandu, Vashishth Dudhia
  • Patent number: 11497411
    Abstract: The present invention provides a circuit applied to a bio-information acquisition system, wherein the circuit includes a terminal, an output circuit, a feedback circuit and a calibration circuit. In the operations of the circuit, the terminal is arranged to receive an input signal, the output circuit is configured to generate an output signal according to the input signal, the feedback circuit is configured to receive the output signal to generate a current signal to the terminal, and the calibration circuit is configured to generate a control signal to control the feedback circuit to determine a level of the current signal according to the output signal.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: November 15, 2022
    Assignee: MEDIATEK INC.
    Inventors: Chih-Hsin Chen, Yu-Hung Lin
  • Patent number: 11387875
    Abstract: A wireless communication device can selectively perform a beam switch upon performing a power-up operation based on the criticality of the beam switch. The wireless communication device can switch from a previously serving downlink beam to a new downlink beam either during or after a paging time window based on beam measurements obtained for the previously serving downlink beam and the new downlink beam. Other aspects, features, and embodiments are also claimed and described.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: July 12, 2022
    Inventor: Vishnu Namboodiri Karakkad Kesavan Namboodiri
  • Patent number: 11265737
    Abstract: There is provided mechanisms for shaping cells in a wireless communications network. A method is performed by a network node. The method comprises obtaining spatial channel characteristics of a set of currently and/or previously served terminal devices in the wireless communications network, wherein the spatial channel characteristics are indicative of a current collective first network performance metric value for the set of currently and/or previously served terminal devices. The method comprises identifying, using the spatial channel characteristics, those terminal devices of the set of currently and/or previously served terminal devices that have an individual second network performance metric value below a threshold value by comparing the individual second network performance metric value for each of the currently and/or previously served terminal devices to the threshold value.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: March 1, 2022
    Inventors: Hamed Farhadi, Niklas Jaldén, Nafiseh Shariati
  • Patent number: 11237968
    Abstract: Techniques including receiving configuration information for a trigger control channel of the one or more trigger control channels, the configuration information defining a first one or more triggering events, receiving a first memory management command, store the first memory management command, detecting a first one or more triggering events, and triggering the stored first memory management command based on the detected first one or more triggering events.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: February 1, 2022
    Inventors: Kai Chirca, Matthew David Pierson, David E. Smith, Timothy David Anderson
  • Patent number: 11178624
    Abstract: The present application provides a method of adjusting transmission power of a terminal, a mobile terminal, and a non-transitory storage device, and relate to the field of mobile terminals. The method includes: connecting to an accession point of a wireless network; obtaining a connection state of the terminal connecting to the accession point; calculating a connection evaluation score based on the connection state; obtaining a state of a screen, setting a threshold connection score based on the state of the screen; comparing the connection evaluation score to the threshold connection score; and reducing the transmission power of the terminal connecting to the wireless network in response to the connection evaluation score being greater than the threshold connection score.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: November 16, 2021
    Inventors: Zhaoyun Wu, Huixin Wang, Yan Fang, Weilong Zhou, Zilong He
  • Patent number: 11129097
    Abstract: Methods and circuits for reducing power dissipation in wireless transceivers and other electronic circuits and systems. Embodiments of the present invention use bias current reduction, impedance scaling, and gain changes either separately or in combination to reduce power dissipation. For example, bias currents are reduced in response to a need for reduced signal handling capability, impedances are scaled thus reducing required drive and other bias currents in response to a strong received signal, or gain is increased and impedances are scaled in response to a low received signal in the presence of no or weak interfering signals.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: September 21, 2021
    Assignee: THETA IP, LLC
    Inventor: Yannis Tsividis
  • Patent number: 10999790
    Abstract: A system described herein may provide for the selection of a cell of a wireless telecommunications network to which a User Equipment (“UE”) should connect. The UE may receive radio frequency (“RF”) signals from a group of cells (e.g., implemented by Radio Units (“RUs”)) of a radio access network (“RAN”), and may determine signal strengths or measures of channel quality associated with the RF signals. For example, the UE may determine a rate of change of signal strengths over time associated with each cell, a differential rate of change, or some other value, and may select the cell based on the respective rates of change. For example, the UE may select a particular cell which exhibits the lowest differential rate of change of signal strengths over time. A particular cell may be implemented, for example, by a mobile RU mounted on a vehicle that maintains relatively close proximity to UE.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: May 4, 2021
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Peter Brockmann, Soumyadeep Pan
  • Patent number: 10993123
    Abstract: A data sending method and a base station is provided. The method includes: determining a coverage zone set to a covered state in a cell at a current moment, where the cell includes multiple coverage zones, at least one set to the covered state in the cell at one moment, and coverage zones set to the covered state at different moments are different; obtaining a common channel beam of the cell at the current moment, where the common channel beam of the cell at the current moment points to the coverage zone set to the covered state in the cell at the current moment; and sending the common channel beam of the cell at the current moment to the coverage zone set to the covered state in the cell at the current moment.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: April 27, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Yuxin Su
  • Patent number: 10966205
    Abstract: Embodiments of the present disclosure provide a communication method, and a communications apparatus and system. User equipment can communicate with the network device by using a plurality of beams, the plurality of beams include a first beam and at least one second beam, the first beam is a serving beam used by the user equipment to listen to control information, and the second beam is a beam other than the serving beam. The method includes: determining, by the user equipment, that the serving beam is blocked; and obtaining, by the user equipment, a first message from the network device by using the first beam or the second beam. According to the method, the UE may determine that the serving beam is blocked, and further obtain the first message sent by the network device, thereby eliminating an adverse effect caused by the blocking of the serving beam.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: March 30, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xun Tang, Li Chai
  • Patent number: 10623982
    Abstract: An information processing device may include a control unit to control display of information of a base station of a first wireless communication method existing around a predictive migration path by using position information of the information processing device, the information processing device using a second wireless communication method.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: April 14, 2020
    Inventors: Shinichiro Tsuda, Nishiki Mizusawa, Takashi Usui, Kazuhisa Takamura
  • Patent number: 10594280
    Abstract: A method can include: generating a first compensation value based on a receiving frequency, where the first compensation value represents attenuations of a wireless signal at different receiving frequencies during transmission to an analog receiving circuit; generating a second compensation value based on an automatic gain control coefficient, where the second compensation value represents gain errors corresponding to different automatic gain control coefficients; and generating a received signal strength indication based on the first and second compensation values, an intermediate frequency signal strength, and a gain of the intermediate frequency signal with respect to a received signal.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: March 17, 2020
    Assignee: Silergy Semiconductor Technology (Hangzhou) LTD
    Inventors: Junjie Qiao, Ran Li
  • Patent number: 10584951
    Abstract: To provide a wireless communication module that implements the function to detect a human body in a conserved space and is capable of detecting a proximity to human bodies with high accuracy. A wireless communication module includes an antenna unit and a proximity detector which detects that a human body has approached the module. The antenna unit includes an antenna and a first filter which is comprised of distributed constant elements. The proximity detector for human bodies uses the antenna and the first filter as an electrode to detect capacitance.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: March 10, 2020
    Assignee: Renesas Electronics Corporation
    Inventors: Tatsuya Serizawa, Yoshihiro Hayashi, Noriaki Matsuno
  • Patent number: 10545231
    Abstract: Embodiments are disclosed for compressing radio maps of fingerprint-based positioning systems using different compression models. In an embodiment, a method comprises: receiving, by a computing device, access point (AP) data from a plurality of mobile devices operating in a geographic region, the AP data including signal strength measurements of AP signals received at a plurality of reference locations in the geographic region and uncertainty measurements associated with the signal strength measurements; determining a level of accuracy with the first compression model; responsive to the determining, selecting one of the first compression model or a second compression model to compress the AP data, the second compression model being different than the first compression model; compressing the AP data using the selected compression model; and responsive to a request from a mobile device operating in the geographic region, sending a data packet including the compressed AP data to the mobile device.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 28, 2020
    Assignee: Apple Inc.
    Inventors: Wuzhou Zhang, Benjamin A. Detwiler, David Benjamin Millman, Jasvinder Singh, Anders M. Holtsberg, Darin Tay
  • Patent number: 10453212
    Abstract: A wireless transmitting/receiving system includes a transmitter, a first directional receiver, a camera, a storage device and a processor. The transmitter is disposed on a target object and transmits a wireless signal. The first directional receiver is disposed with respect to an entry/exit boundary. The first directional receiver receives the wireless signal and generates a first received signal strength indication. The camera captures an image of the entry/exit boundary. The storage device stores a mapping table of target object location and received signal strength. The processor is electrically connected to the storage device and determines a location of the target object and a moving direction of the target object with respect to the entry/exit boundary according to the image and the mapping table of target object location and received signal strength.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: October 22, 2019
    Assignee: VIVOTEK INC.
    Inventor: Cheng-Chieh Liu
  • Patent number: 10448283
    Abstract: Buffering streaming content includes accessing prior device location data of a device and predicting a future sector that the device will travel through based at least in part on the prior device location data. A predicted quality of service of wireless communications is determined and a streaming buffer is adjusted based at least in part on the predicted quality of service.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: October 15, 2019
    Assignee: T-Mobile USA, Inc.
    Inventors: Paul Bongaarts, Jeffery A. Smith
  • Patent number: 10361744
    Abstract: A transceiver circuit and related radio frequency (RF) circuit are provided. An RF circuit is coupled to a transceiver circuit configured to generate an envelope tracking (ET) target voltage. The RF circuit includes a tracker circuit and a power amplifier circuit(s). The tracker circuit may have inherent frequency-dependent impedance that can interact with a load current of the amplifier circuit(s) to cause degradation in an ET modulated voltage, which can lead to spectral distortions in an RF offset spectrum. As such, a voltage compensation circuit is provided in the transceiver circuit and configured to add a voltage compensation term in the ET target voltage. By adding the voltage compensation term into the ET target voltage, it is possible to compensate for the degradation in the ET modulated voltage, thus helping to reduce the spectral distortions in the RF offset spectrum and improve linearity and efficiency of the amplifier circuit(s).
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: July 23, 2019
    Assignee: Qorvo US, Inc.
    Inventor: Nadim Khlat
  • Patent number: 10277494
    Abstract: A device and method for antenna alignment using vibrational positioning are provided. The device comprises: a controller; a vibrating device; and an antenna. The controller configured monitors a data quality parameter of the antenna. When the data quality parameter meets a first threshold condition, the controller activates the vibrating device. When a second threshold condition is met, after the vibrating device is activated, the controller deactivates the vibrating device. Activation of the vibrating device can cause the device to vibrate to move the device into a minimum energy position on a docking station to align the antenna with a respective antenna of the docking station. The docking station can comprise a wireless charging pad and the alignment of the antenna (e.g. a loop antenna and the like) with the respective antenna of the docking station can assist with charging efficiency of a battery of the device.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: April 30, 2019
    Inventors: Jerrold Richard Randell, Mohammed Nawaf Smadi, Jeffrey Ronald Clemmer, Anthony Hu
  • Patent number: 10243600
    Abstract: Embodiments of the present invention provide a receiver and a wireless communications apparatus. The receiver includes: an attenuation circuit, configured to receive an input signal, and obtain a first signal according to the input signal; a low-noise amplification circuit, configured to receive the first signal, and obtain a second signal according to the first signal; an orthogonal down-frequency conversion circuit, configured to receive the second signal, and process the second signal to obtain an output signal; and a control circuit, configured to separately control the attenuation circuit and the low-noise amplification circuit according to power of an interference signal included in the output signal, so as to determine whether the attenuation circuit attenuates the input signal and whether the low-noise amplification circuit amplifies the first signal.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: March 26, 2019
    Inventors: Cheng Zhang, Jinming Wang, Chen Wang, Bingxin Li
  • Patent number: 10243602
    Abstract: A wireless receiver includes an analog-to-digital converter that converts a signal corresponding to a received signal into a digital signal on the basis of multiple reference voltages and outputs the digital signal. The wireless receiver also includes a control circuit that controls at least one of the multiple reference voltages on the basis of the digital signal that is output from the analog-to-digital converter.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: March 26, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomoki Shioda, Hiroshi Yoshida
  • Patent number: 10237099
    Abstract: Systems, methods, and apparatus are provided for automated identification of open space in a wireless communications spectrum, by identifying sources of signal emission in the spectrum by automatically detecting signals, analyzing signals, comparing signal data to historical and reference data, creating corresponding signal profiles, and determining information about the open space based upon the measured and analyzed data in near real-time.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: March 19, 2019
    Inventor: Daniel Carbajal
  • Patent number: 10211793
    Abstract: A method for detecting oscillation in a signal coupling device includes at least one oscillation detection step. The oscillation detection step includes the steps of determining an undamped signal level of a signal on a signal path of the signal coupling device in a first step, reducing a gain of the signal path in a second step, and determining a damped signal level of the signal on the signal path and a deviation between the undamped signal level and the damped signal level at least once in a third step. An oscillation is detected if at least one deviation determined in the third step of the at least one oscillation detection step is higher than or equal to a predetermined oscillation threshold value. A device for detecting oscillation in a signal coupling device and a signal coupling device are also provided.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: February 19, 2019
    Assignee: Laird Dabendorf GmbH
    Inventors: Raimo Jacobi, Marcus Weigelt, Khaled Bathich
  • Patent number: 10181970
    Abstract: Embodiments of a method and a system controlling an amplifier of a communications device are disclosed. In an embodiment, a method for controlling an amplifier of a communications device involves checking for a data reception at the communications device and freezing a gain of the amplifier if the data reception is detected.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: January 15, 2019
    Assignee: NXP B.V.
    Inventors: Stefan Mendel, Michael Pieber
  • Patent number: 9991721
    Abstract: A transformer includes first and second semiconductor substrates. The first semiconductor substrate includes a first circuit, a first coil providing a first impedance, and a first capacitor coupled in parallel with the first coil. The second semiconductor substrate includes a second circuit, a second coil providing a second impedance and inductively coupled with the first coil, and a second capacitor coupled in parallel with the second coil.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: June 5, 2018
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Jun-De Jin, Fan-Ming Kuo, Huan-Neng Chen, Ming-Hsien Tsai, Hsieh-Hung Hsieh, Tzu-Jin Yeh
  • Patent number: 9893819
    Abstract: A method determines far field EVM of a DUT using over-the-air (OTA) testing, the DUT having a transmitter/receiver and an antenna that are integrated together such that there is no connection port for interfacing a test system for directly measuring the EVM. Modulated RF signals transmitted by the DUT propagate OTA via the antenna. The method includes performing a near field scan of a bounded radiation surface, which includes measurement points at which waveforms of a repeatedly transmitted modulated RF signal are measured; downconverting the waveforms to intermediate frequency (IF), and digitizing the IF waveforms; synthesizing digital waveforms corresponding to the IF waveforms; accounting for corresponding RF propagation in the far field for the digital waveforms; providing a modulated digital IF waveform using the digital waveforms for which RF propagation has been accounted; and calculating EVM of the DUT in the far field using the modulated digital IF waveform.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: February 13, 2018
    Inventors: Gregory S. Lee, Gregory Douglas Vanwiggeren, Christopher Coleman
  • Patent number: 9872142
    Abstract: Technologies are presented that provide collaborative context-based user tracking and communications. A method of tracking communication options may include receiving, from one or more user devices of a user, user proximity information that indicates whether the user is in proximity of the one or more user devices; receiving, from the user devices, tracking loss warnings that indicate that loss of capabilities to track the user by respective user devices may be imminent; receiving, from the user devices, secondary device proximity information that indicates whether the user device is in proximity of one or more secondary devices; and receiving, from the secondary devices, additional user proximity information that indicates whether the user is in proximity of the one or more secondary devices. The method may further include dynamically determining from the received information which of the user devices and secondary devices are able to provide communications to the user.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: January 16, 2018
    Assignee: Intel Corporation
    Inventors: Lama Nachman, Horst W. Haussecker, Jim S. Baca, Burges Karkaria
  • Patent number: 9854527
    Abstract: In some embodiments, a user equipment device (UE) implements improved communication methods which include radio resource time multiplexing, dynamic sub-frame allocation, and UE transmit duty cycle control. In some embodiments, the UE may communicate with base stations using radio frames that include multiple sub-frames, transmit information regarding allocation of a portion of the sub-frames of a respective radio frame for each of a plurality of the radio frames, and transmit and receive data using allocated sub-frames and not using unallocated sub-frames. In some embodiments, the UE may operate according to a sub-frame allocation based on its current power state. The UE may transmit information to the base station and receive the sub-frame allocation based on at least the information. In some embodiments, the UE may switch transmit duty cycles based on an occurrence of a condition at the UE. The UE may inform the network of the switch.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: December 26, 2017
    Assignee: Apple Inc.
    Inventors: Li Su, Stephan V. Schell, Jianxiong Shi, Sami M. Almalfouh
  • Patent number: 9843673
    Abstract: Different call managing techniques are described for both voice calls and video calls. A call management system detects that a user is on an active call. The call management system detects that the user has continued to speak when the call was disconnected, as by another user terminating the call or poor network conditions. When the call management system detects a disconnected call, it records the spoken speech into a buffer and determines which portion of the user's speech was not processed and communicated to the other user. The user whose call was terminated is provided with an option to provide the un-communicated speech to the other user. Options can include sending a text version of the un-communicated speech to the other user or sending a voice file to the other user.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: December 12, 2017
    Inventors: Himanshu Chug, Amit Kumar Agrawal
  • Patent number: 9843947
    Abstract: A wireless edge device is operable in a wireless network and configured to communicate with other wireless devices in the wireless network. The wireless edge device includes a processor configured to receive an input to switch from a low power consumption normal operation mode to a site survey mode, a transceiver configured to (i) transmit data packets periodically or asynchronously to a wireless device of the wireless network, and (ii) receive the data packets returned by the wireless device, and a visual indicator. The processor is further configured to evaluate quality and/or reliability of the received data packets, to provide a signal to the visual indicator indicative of signal strength at the wireless edge device based on the evaluation of quality and/or reliability of the received data packets, and to switch from the site survey mode to the low power consumption normal operation mode after a predetermined time.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: December 12, 2017
    Assignee: KCF Technologies, Inc.
    Inventors: Jacob Joseph Loverich, David R. Kraige, Stephen J. Wenner, Scott David Brown, Richard T. Geiger
  • Patent number: 9814005
    Abstract: Embodiments of a method and a system for processing a radio frequency (RF) signal are disclosed. In an embodiment, a method for processing an RF signal involves down-converting the RF signal into a converted signal, obtaining a received signal strength indicator (RSSI) value based on an amplitude of the RF signal, and amplifying the converted signal based on the RSSI value.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 7, 2017
    Assignee: NXP B.V.
    Inventors: Stefan Mendel, Michael Pieber
  • Patent number: 9794792
    Abstract: Shared spectrum operation is disclosed for sharing spectrum among multiple wireless deployments. Coordination procedures between and among 2nd and 3rd Tier deployments include the use of beacons transmitted by the 2nd Tier for clearing access to spectrum occupied by 3rd Tier users and multiple 3rd Tier deployments sharing resources using a group-listen before talk (LBT) protocol, rather than a per-node LBT protocol. The 2nd Tier beacon signals are transmitted to alert 3rd Tier users of their presence, which, upon detection, will leave the particular spectrum within a predetermined time. For the shared LBT protocol, the 3rd Tier deployments share the channel with each other through an LBT with random backoff, in which the start time of clear channel assessment (CCA) procedure and the random backoff values are synchronized among nodes of the same deployment.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: October 17, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Naga Bhushan, John Edward Smee, Tingfang Ji, Ahmed Kamel Sadek, Krishna Kiran Mukkavilli, Joseph Binamira Soriaga
  • Patent number: 9756657
    Abstract: A wireless device includes a preamble detector configured to identify a plurality of preambles transmitted via a random access channel of a wireless network. The preamble detector includes a noise floor estimator. The noise floor estimator is configured to: estimate, for a given preamble root sequence identified by the preamble detector, a noise floor value as mean energy of received signal samples, excluding detected preamble samples on the give preamble root sequence, below a noise floor threshold assigned to the given preamble root sequence. The noise floor estimator is configured to compute the noise floor threshold as a product of: average energy of the received signal samples less total signal energy contained in each cyclic prefix window in which a preamble is detected using the given preamble root sequence; and a predetermined normalized relative noise floor threshold based on a target false preamble detection rate.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: September 5, 2017
    Inventors: Jing Jiang, Mingjian Yan, Aleksandar Purkovic
  • Patent number: 9730130
    Abstract: A mobile communication system according to an exemplary aspect of the invention is a mobile communication system including a mobile station, a radio base station as a handover source of the mobile station, and a radio base station as a handover target of the mobile station, wherein the mobile station includes a transmission unit for transmitting radio quality information between the mobile station and the radio base station as the handover target to the radio base station as the handover source; and the radio base station as the handover source includes a transmission unit for transmitting the radio quality information to the radio base station as the handover target.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: August 8, 2017
    Inventors: Tadashi Ogami, Sadafuku Hayashi, Mazlyn Mona Mustapha
  • Patent number: 9665142
    Abstract: A modem includes a temperature detecting module, a frequency detecting module, and a power offset calculating module. The temperature detecting module detects a real-time-work temperature of the modem. The frequency detecting module obtains a real-time-work frequency of the modem. The power offset calculating module calculates a power offset by inputting the real-time-work temperature and the real-time-work frequency into a pre-stored calculating model and adjusts a power of the modem according to the calculated power offset. A method of adjusting power of the modem is also provided.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: May 30, 2017
    Inventors: Hau-Lung Huang, Yue-De Tang
  • Patent number: 9629004
    Abstract: Techniques for indication of wireless signal quality are described. According to various implementations, attributes of a wireless signal are detected and processed to ascertain a quality of the wireless signal. Based on an ascertained signal quality, indicia of the signal quality can be exposed. For instance, an indication of wireless signal quality is communicated to an application and/or service that manages communication of media data. According to one or more embodiments, an application/service may perform one or more actions based on the indication of signal quality, such as a procedure to improve signal quality, a procedure to optimize wireless performance, and so forth.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: April 18, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Amer A. Hassan, Andrei Jefremov
  • Patent number: 9572126
    Abstract: A system (10) for determining effects of one or more factors on one or more properties of a signal received by a wireless communication enabled device (24), the system (10) comprising: at least one sensor for sensing and gathering sensor data relating to a state of the wireless communication enabled device (24) or a state of the environment surrounding the wireless communication enabled device; and decision means for receiving input including the sensor data and determining whether one or more criteria are satisfied based on the input, each criteria being associated with a respective factor affecting a respective property, and determining the effects on the one or more properties of the signal on the basis of the criteria determination.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: February 14, 2017
    Assignee: Norwood Systems Pty Ltd
    Inventors: Paul Frederick Norwood Ostergaard, David Alexander Wilson, Andrew Phillip Mason
  • Patent number: 9571713
    Abstract: An electronic photographic device that automatically communicates an authorization signal that enables receivers of the authorization signal to authorize use of a likeness captured in a photographic image. The electronic authorization device includes an image capture mechanism for capturing the photographic image, a controller for initiating photographic authorization by generating an authorization signal at the capture of the photographic image by the image capture mechanism and a transmitter for transmitting the authorization signal generated by the controller towards a physical location at which the photographic image is captured. The authorization signal identifies a website URL at which information relating to the captured photographic image can be accessed to allow a person who has received the authorization signal to access the website and provide or deny an authorization for its use.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: February 14, 2017
    Assignee: International Business Machines Corporation
    Inventors: Sara H. Basson, Dimitri Kanevsky, Edward E. Kelley, Irina Rish
  • Patent number: 9552329
    Abstract: A correction arithmetic circuit disclosed herein includes an offset temperature characteristic correction unit that corrects an offset temperature characteristic of an input signal according to an input signal characteristic at a specific temperature and a temperature characteristic at a specific input signal. A signal processor disclosed herein includes a pulse count number setting circuit that generates a pulse count number setting signal in accordance with an input signal and a pulse generation unit that generates a pulse signal by counting a pulse number of a reference clock signal according to the pulse count number setting signal. The pulse count number setting circuit corrects the pulse count number setting signal so as to cancel a frequency temperature characteristic of the pulse signal.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: January 24, 2017
    Assignee: Rohm Co., Ltd.
    Inventor: Kazuma Mishima
  • Patent number: 9507008
    Abstract: Systems and methods for receiving a plurality of wireless communication signals and identifying an antenna occlusion condition from the received plurality of wireless communication signals is disclosed. A correction factor may be determined based at least in part on determined signal strength corresponding to each of the received wireless communication signals. The correction factor may be used to determine a location based at least in part on the signal strength corresponding to each of the received communication signals and the determined correction factor.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: November 29, 2016
    Assignee: Amazon Technologies, Inc.
    Inventor: Arvind Thiagarajan
  • Patent number: 9479207
    Abstract: A device and method for tracking a signal of interest from a signal transmitting device, in the presence of cross-polarization or adjacent emitter interference, is provided. An antenna, which may have a beamwidth greater than an angular spacing of geo-stationary transmitting device, is used to receive the signal of interest from a transmitting device. The received signal of interest is analyzed to determine a frequency characteristic of the received signal of interest, and a filter of a plurality of filters is selected based on the determined bandwidth of the signal of interest. The selected filter is applied to the received signal of interest.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: October 25, 2016
    Assignee: ThinKom Soultions, Inc.
    Inventors: William Henderson, Talat Kiani
  • Patent number: 9471900
    Abstract: Embodiments include a system and method of workforce data management including a wearable device, a scanner and a database server. The scanner emits a radius to identify an area around the wearable device, scans the area to detect the wearable device and transmits outgoing data to the wearable device. The scanner receives incoming data from the wearable device, processes the incoming data, and filters the incoming data to qualify accuracy of the incoming data. After filtering the incoming data, the scanner determines whether a portion of the incoming data includes accurate data capture. When the portion of the incoming data includes accurate data capture, the scanner outputs a corresponding trust score and transmits the portion of the incoming data to the database server. When the portion of the incoming data includes inaccurate data capture, the scanner outputs a corresponding trust score and awaits further action from the wearable device.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: October 18, 2016
    Assignee: Genesys Impact, LLC
    Inventor: Jad Boustany