Miscellaneous Patents (Class 375/377)
  • Patent number: 11960432
    Abstract: The purpose of the present invention is to cause a reception side communication device to appropriately detect a start bit. A serial communication unit (100), which transmits serial data by a combination of a high level signal and a low level signal, is provided with: a serial communication part (111) that provides the start bit on the head of the serial data, and transmits the high level signal in a prescribed duration just before the start bit; and a duration setting part (113) that sets the duration.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: April 16, 2024
    Assignee: OMRON Corporation
    Inventor: Kenji Sato
  • Patent number: 11921158
    Abstract: Disclosed is a fan-out buffer which includes a first channel that includes a first delay circuit adjusting a first delay time of a calibration test signal depending on a first delay control signal, a second channel that includes a second delay circuit adjusting a second delay time of the calibration test signal depending on a second delay control signal, a first edge-to-pulse converter that detects a first edge included in a first time domain reflectometry (TDR) waveform of an output terminal of the first channel and generates a first start pulse signal including a first pulse, a second edge-to-pulse converter that generates a second start pulse signal including a second pulse, a stop pulse signal generator that generates a stop pulse signal including a first stop pulse, and a first delay control signal generator that calculates a phase difference generates the first delay control signal.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: March 5, 2024
    Inventors: Byung-Sung Kim, Yun-Hyok Choi, Gyuyeol Kim, Sungjung Kim, Cheol-Heui Park, Sanghoon Lee, Jae-Woong Choi
  • Patent number: 11892889
    Abstract: The present disclosure relates to a device for network switching. The device includes an uninterrupted power supply (UPS) configured to provide electrical power from a power grid to a battery and a modem. The device further includes the battery configured to provide electrical power to a cellular modem. The device also includes the cellular modem configured to provide internet connection to a remote device. The device in addition includes a network switch configured to switch internet connectivity between the modem and the cellular modem. The network switch, when the power grid is interrupted, switches from the modem to the cellular modem to provide internet connectivity to the remote device.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: February 6, 2024
    Assignee: Metropolitan Industries, Inc.
    Inventors: James Andrew Nimmer, John R. Kochan, Jr.
  • Patent number: 11881282
    Abstract: A memory device including a memory die including an internally-powered thermometer to determine a first measured operating temperature value of the memory die; detect the first measured operating temperature value satisfies one of a first condition or a second condition; and generate a first signal indicating an out-of-range operating temperature of the memory die in response to one of the first condition or the second condition being satisfied by the first measured operating temperature value. The memory die also including an externally-powered thermometer to: determine a second measured operating temperature value of the memory die; detect the second measured operating temperature value satisfies one of the first condition or the second condition; and generate a second signal indicating the out-of-range operating temperature of the memory die in response to one of the first condition or the second condition being satisfied by the second measured operating temperature value.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: January 23, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Yui Shimizu, Manik Advani, Michele Piccardi
  • Patent number: 11843483
    Abstract: During a training procedure for communicating via a full-duplex communication link, a first communication device receives training information from a second communication device. The training information corresponds to first signal processing parameters developed at the second communication device for use by the second communication device to process signals received by the second communication device via the full-duplex communication link. After receiving the training information from the second communication device, the first communication device develops second signal processing parameters to be used by the first communication device to process signals received by the first communication device via the full-duplex communication link. The second signal processing parameters are developed using the training information received from the second communication device.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: December 12, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Seid Alireza Razavi Majomard, Sina Barkeshli
  • Patent number: 11665743
    Abstract: A UE may receive, from a base station, a configuration for a plurality of parameter sets that each include one or more parameters for a RACH message and are each associated with one of TDM, FDM, or SDM. The UE may determine a transmission type of the RACH message corresponding to one or more of the TDM, the FDM, or the SDM and transmit the RACH message to the base station based on at least one parameter set and the determined transmission type of the RACH message. In aspects, the configuration received by the UE may be a configuration for transmitting the RACH message based on a RACH determination protocol. The UE may transmit the RACH message to the base station based on the received configuration associated with the RACH determination protocol and the determined at least one transmission type of the RACH message.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: May 30, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Qian Zhang, Yan Zhou, Navid Abedini, Junyi Li, Kapil Gulati, Tao Luo
  • Patent number: 11665742
    Abstract: A UE may receive, from a base station, a configuration for a plurality of parameter sets that each include one or more parameters for a RACH message and are each associated with one of TDM, FDM, or SDM. The UE may determine a transmission type of the RACH message corresponding to one or more of the TDM, the FDM, or the SDM and transmit the RACH message to the base station based on at least one parameter set and the determined transmission type of the RACH message. In aspects, the configuration received by the UE may be a configuration for transmitting the RACH message based on a RACH determination protocol. The UE may transmit the RACH message to the base station based on the received configuration associated with the RACH determination protocol and the determined at least one transmission type of the RACH message.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: May 30, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Qian Zhang, Yan Zhou, Navid Abedini, Junyi Li, Kapil Gulati, Tao Luo
  • Patent number: 11604961
    Abstract: A neural network models fragmenting method, system, and computer program product include recursively factoring out common prefixes of models, constructing a hierarchy of decomposed model fragments based on the factoring, and grouping the constructed hierarchy for deployment.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: March 14, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Vinod Muthusamy, Parijat Dube, Kaoutar El Maghraoui, Falk Pollok
  • Patent number: 11498423
    Abstract: A rail-mounted rail processing machine has at least one traction motor and with at least one working unit for processing tracks, a permanent energy source, an electrical energy storage and a current collector. The components are connected to a common direct current network via power converters. In order to create a rail-mounted rail processing machine that allows low-maintenance and environmentally friendly operation of working aggregates with strongly varying peak loads without having to accept losses in the processing quality, the permanent energy source is a fuel cell which feeds at least one base load of the working unit into the direct current network via one of the power converters. To cover peak loads of at least the working unit, buffer energy of the electrical energy storage acting as a buffer store is feedable into the direct current network via an associated one of the power converters.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: November 15, 2022
    Assignee: Mate GmbH
    Inventor: Philipp Haselsteiner
  • Patent number: 11283505
    Abstract: A method may include obtaining spatial diagnostics data determined independent of changes to channel state parameters associated with a communication channel; and providing a service associated with a location at which the network exists using the spatial diagnostics data. Another method may include obtaining channel state parameters associated with a communication channel, the channel state parameters changing over time; determining spatial diagnostics data independent of changes to the channel state parameters; and providing a service associated with a location at which the network exists using the spatial diagnostics data. Another method may include monitoring activity at a location based on spatial diagnostics data associated with a communication channel of a network with a WAP; and in response to detecting an unrecognized device at the location, calibrating the WAP to nullify parameters of the communication channel from the unrecognized device without disrupting communication with authorized devices.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: March 22, 2022
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Debashis Dash, Hossein Dehghan, Georgy Gilyarovskiy
  • Patent number: 11189339
    Abstract: A memory device includes: a memory array including a plurality of memory cells and a plurality of bit lines; and a current converting circuit, coupled to the memory array. In executing a calculation operation, the memory cells of the memory array generate a source current corresponding to a calculation operation result. The source current is converted by the current converting circuit into an output value for being an input signal provided to a next calculation operation.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: November 30, 2021
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Yi-Ching Liu, Chi Lo
  • Patent number: 11175426
    Abstract: A method for mapping geological structures of a formation on a side of a surface, includes: generating a magnetic moment using at least one magnetic moment generator to build up a magnetic field in the formation in an on-period, wherein the magnetic moment has a moment strength, and wherein the magnetic moment is positioned on another side of the surface; changing the magnetic moment to change the magnetic field; and making at least one record in a recording device at a recording time trecord in an off-period, wherein the record includes at least a representation of the change in the magnetic field and/or a representation of the magnetic field obtained by a B/E-measuring unit; wherein the on-period is separated from the off-period by the act of changing the magnetic moment.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: November 16, 2021
    Assignee: Skytem Survey APS
    Inventor: Kurt Ingvard Sorensen
  • Patent number: 11159203
    Abstract: A bridge connected between a first process control loop and a second process control loop wherein the bridge allows alternating current digital signals to pass between the first process control loop and the second process control loop while preventing direct current analog signals from passing between the first process control loop and the second process control loop.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: October 26, 2021
    Assignee: MICRO MOTION, INC.
    Inventors: Walter Charles Baker, Marcos A V Peluso, Cheng Chua Vue, Randy Kenneth Paschke
  • Patent number: 11099222
    Abstract: A near-field capacitive data communication system that uses a variable capacitive device such as a PIN diode to change the capacitance of a conductive plate in response to either a high or low data signal. A detector attached to a second conductive plate that is in proximity to the first conductive plate measures the capacitance of the first conductive plate and outputs a corresponding data signal. The technique is wireless, since the two conductive plates are not in electrical contact with one-another, but rather share their static electric fields. A microcontroller can act as a detector by baselining the capacitance of the first conductive plate when its capacitance is in the low capacitance state. The technique is ideal for communication between a pair of toys that can be brought in close proximity to one-another. Since no radio frequencies are used, no special testing or governmental electromagnetic compatibility rules apply.
    Type: Grant
    Filed: January 20, 2019
    Date of Patent: August 24, 2021
    Inventors: Christopher T. Baumgartner, Ro Annis
  • Patent number: 11075783
    Abstract: A communication method for phase separation differential chaos shift keying (DCSK) based on a second order hybrid system (SOHS) is provided. The method includes the following steps. At Step 1: communication system parameters are set. At Step 2: binary information to be transmitted are prepared. At Step 3: the chaotic signal u(t) is generated. At Step 4: the chaotic signal is prepared to be transmitted. At Step 5: a received signal is demodulated. At Step 6: a chaotic matched filtering operation is performed on the demodulated reference signal and the demodulated information bearing signal. At Step 7: optimal signal to noise ratio (SNR) points are extracted in a sampling way. At Step 8: polarity of each symbol is determined to obtain a recovered signal.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: July 27, 2021
    Assignee: Xi'an University of Technology
    Inventors: Haipeng Ren, Chao Bai
  • Patent number: 10674325
    Abstract: A method for implementing a multimedia messaging service between a terminal that communicates with a network over a radio path and a server includes receiving a multimedia message addressed to the terminal at the server. The multimedia message includes at least one multimedia component. A notification message is transmitted over the radio path to the terminal to indicate that a multimedia message is available for retrieval from the server. The notification message includes the information on at least one property of the multimedia component. The notification message is received at the terminal, whereupon a bearer is selected for transferring the multimedia component over the radio path on the basis of the property data conveyed by the notification message. The multimedia component is transferred from the server to the terminal over the radio path using the bearer selected by the terminal.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: June 2, 2020
    Assignee: Conversant Wireless Licensing S.a r.l
    Inventor: Outi Aho
  • Patent number: 10523344
    Abstract: A method and system that provides for execution of a first calibration sequence, such as upon initialization of a system, to establish an operation value, which utilizes an algorithm intended to be exhaustive, and executing a second calibration sequence from time to time, to measure drift in the parameter, and to update the operation value in response to the measured drift. The second calibration sequence utilizes less resources of the communication channel than does the first calibration sequence. In one embodiment, the first calibration sequence for measurement and convergence on the operation value utilizes long calibration patterns, such as codes that are greater than 30 bytes, or pseudorandom bit sequences having lengths of 2N?1 bits, where N is equal to or greater than 7, while the second calibration sequence utilizes short calibration patterns, such as fixed codes less than 16 bytes, and for example as short as 2 bytes long.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: December 31, 2019
    Assignee: Rambus Inc.
    Inventors: Craig E. Hampel, Frederick A. Ware, Richard E. Perego
  • Patent number: 10492189
    Abstract: Disclosed are: a MIMO transmitter communication method estimating a channel correlation for REs on the basis of information regarding channels of REs contained in a resource region allocable to a MIMO receiver, allocating a part of the resource region as a resource for the MIMO receiver in consideration of the estimated channel correlation, and transmitting a downlink signal to the MIMO receiver through the allocated resource; and a MIMO transmitter.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: November 26, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kilbom Lee, Jiwon Kang, Kitae Kim, Heejin Kim
  • Patent number: 10031882
    Abstract: Described is an I3C Repeater. The I3C Repeater may have a first circuitry with an I3C interface, a second circuitry with an I2C interface, and a datapath circuitry coupled to the first circuitry and the second circuitry. The second circuitry may be operable to convert a transaction received on the I2C interface into a transaction for the I3C interface, and to convert a transaction received on the I3C interface into a transaction for the I2C interface. The I3C Repeater may also have additional circuitries operable to convert transactions received on one of an SPI interface, a UART interface, and a Debug bus interface into transactions for the I3C interface, and vice-versa.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: July 24, 2018
    Assignee: Intel Corporation
    Inventor: Amit Kumar Srivastava
  • Patent number: 9996593
    Abstract: Data can be processed in parallel across a cluster of nodes using a parallel processing framework. Using Web services calls between components allows the number of nodes to be scaled as necessary, and allows developers to build applications on the framework using a Web services interface. A job scheduler works together with a queuing service to distribute jobs to nodes as the nodes have capacity, such that jobs can be performed in parallel as quickly as the nodes are able to process the jobs. Data can be loaded efficiently across the cluster, and levels of nodes can be determined dynamically to process queries and other requests on the system.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: June 12, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Govindaswamy Bacthavachalu, Peter Grant Gavares, Ahmed A. Badran, James E. Scharf, Jr.
  • Patent number: 9847867
    Abstract: The object of the present invention is a method for selecting a terminal of an HD-FDD duplexing model. The invention enables the complexity of a switch of a terminal operating in an HD-FDD duplexing mode, at a level equivalent to that of a terminal operating in a TDD or FDD duplexing mode, to be reduced. To do this, thanks to the invention, it is provided that the terminal operating in an HD-FDD duplexing mode receives notifications or information via a network that programs the HD-FDD terminals through different uplink and downlink transmission models illustrated in FIG. 1. It may also be provided that the terminal operating in an HD-FDD duplexing mode has knowledge of the HD-FDD model to use for its communication. In this event, the complexity of its communication is reduced to the same level as that of a terminal operating in TDD mode.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: December 19, 2017
    Assignee: AIRBUS DS SAS
    Inventors: Christophe Gruet, Eric Georgeaux
  • Patent number: 9485044
    Abstract: An electronic service guide (ESG) is provided by transmitting announcements describing multimedia sessions, such as video streams. Sessions are organized into a session directory (28) which is split into two parts: a full session directory (291) and an updated session directory (292). A first kind of announcement describes all sessions in the full session directory. A second kind of announcement describes sessions in the updated session directory. Once a client has received a description of the full session directory, it need only listen to announcements of the second type so as to learn of any updates to sessions.
    Type: Grant
    Filed: November 27, 2003
    Date of Patent: November 1, 2016
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Juha-Pekka Luoma, Dominique Muller, Toni Paila
  • Patent number: 9355690
    Abstract: A method for asynchronous time multiplexing of information with synchronous interfacing includes, responsive to a first edge of a clock signal, asynchronously loading first data, including first multiple sets of data for multiple operations, into a first asynchronous shift register. The first data is asynchronously unloaded from the first asynchronous shift register to a function block for processing to provide second data, including second multiple sets of data as results of the multiple operations. The second data is asynchronously loaded into a second asynchronous shift register. Responsive to a second edge of the clock signal, the second data is asynchronously unloaded from the second asynchronous shift register as the results of the multiple operations. The first edge and the second edge of the clock signal are associated with a same period of the clock signal.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: May 31, 2016
    Assignee: XILINX, INC.
    Inventor: Tim Tuan
  • Patent number: 9155140
    Abstract: An optical high speed Arbitrary Waveform Generator (AWG) comprising a trigger module configured to receive binary signals and generate a trigger output in response, a digital waveform shaper (DWS) module configured to be programmed by a digital waveform and convert it to analog waveform, an amplifier module configured to amplify the analog waveform, a load adapter module configured to match the electrical impedance of the amplifier module to the electrical impedance of a light source, a TEC controller and a voltage supply module adapted to supply voltage to the trigger module, the digital waveform shaper module, the amplifier module, and the load adapter and the TEC controller.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: October 6, 2015
    Inventor: Gabriel Yavor
  • Patent number: 9143195
    Abstract: A communication system has a trunk extending from a network facility, such as a central office, with a plurality of distribution points positioned along the trunk. Each leg of the trunk defines a shared channel that permits peak data rates much greater than what would be achievable without channel sharing. As an example, the connections of each respective trunk leg may be bonded. Further, the same modulation format and crosstalk vectoring are used for each leg of the trunk. The crosstalk vectoring cancels both far-end crosstalk (FEXT) that couples between connections of a given trunk leg and crossover crosstalk that couples between one trunk leg and another. In addition, logic determines an amount of excess capacity available for each leg of the trunk and controls error correction based on the determined excess capacity.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: September 22, 2015
    Assignee: ADTRAN, Inc.
    Inventors: Fred Chu, Kenneth D. Ko, Richard Goodson, Kevin W. Schneider
  • Patent number: 9025695
    Abstract: A network interface apparatus for wireless Ethernet is provided. The network interface apparatus includes: a Network Interface Card (NIC) control unit for converting a gigabit wired Ethernet signal into a Peripheral Component Interconnect express (PCIe) signal; a wireless network processing unit for converting the PCIe signal received from the NIC control unit into an analog signal; and an RF transmitting/receiving unit for converting the analog signal inputted from the wireless network processing unit into an RF signal of a 60 GHz frequency band to transmit the converted RF signal into a wireless terminal device.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: May 5, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventor: Ho Jin Roh
  • Patent number: 9025712
    Abstract: A clock frequency adjusting system is disclosed. The clock frequency adjusting system includes a sensing clock generating unit, a frequency-dividing unit and a controller. The frequency-dividing unit makes frequency of the sensing clock signal be divided by a frequency-dividing modulus and then outputs a clock calibration signal. The controller includes a period counter and a frequency adjusting unit. The period counter samples the clock calibration signal through the external clock signal so as to acquire a second count value. The frequency adjusting unit calculates a frequency difference data between the clock calibration signal and the predetermined clock signal according to the first count value and the second count value, and determines a number of adjustment according to the frequency difference data and a step adjusting frequency so as to output a clock adjusting signal to the sensing clock unit to adjust frequency of the sensing clock signal.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: May 5, 2015
    Assignee: Pixart Imaging Inc.
    Inventor: Kevin Len-Li Lim
  • Patent number: 8995598
    Abstract: A clock recovery circuit includes a first phase detector for measuring the phase difference between a first clock signal from a voltage controlled oscillator (VCO) and a data signal. A phase shifter responsive to a control signal based on this phase difference adjusts the phase of an incoming clock signal to yield a second clock signal. The phase difference between the first clock signal and the second clock signal is measured and the resulting signal is low-pass filtered to derive a control signal for controlling the VCO. The phase locked loop including the VCO filters out jitter.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: March 31, 2015
    Assignee: Rambus Inc.
    Inventor: Carl William Werner
  • Patent number: 8971421
    Abstract: A millimeter wave wireless (M2W2) interconnect is used for transmitting and receiving signals at millimeter-wave frequencies for short-range wireless communication with high data rate capability. The transmitter and receiver antennae may comprise an on-chip differential dipole antenna or a bond-wire differential dipole antenna. The bond wire differential dipole antenna is comprised of a pair of bond wires connecting between a pair of pads on an integrated circuit (IC) die and a pair of floating pads on a printed circuit board (PCB).
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: March 3, 2015
    Assignee: The Regents of the University of California
    Inventors: Sai-Wang Tam, Mau-Chung F. Chang
  • Patent number: 8917797
    Abstract: A method and apparatus are disclosed for controlling a buffer in a digital audio broadcasting (DAB) communication system. An audio encoder marks a frame as “dropped” whenever a buffer overflow might occur. Only a small number of bits are utilized to process a lost frame, thereby preventing the buffer from overflowing and allowing the encoder buffer-level to quickly recover from the potential overflow condition. The audio encoder optionally sets a flag that provides an indication to the receivers that a frame has been lost. If a “frame lost” condition is detected by a receiver, the receiver can optionally employ mitigation techniques to reduce the impact of the lost frame(s).
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: December 23, 2014
    Assignee: LSI Corporation
    Inventor: Christof Faller
  • Patent number: 8913691
    Abstract: Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled to provide the desired phase, frequency, and/or amplitude characteristics of the desired time-varying complex envelope signal. In another embodiment, a time-varying complex envelope signal is decomposed into a plurality of constant envelope constituent signals. The constituent signals are amplified equally or substantially equally, and then summed to construct an amplified version of the original time-varying envelope signal. Embodiments also perform frequency up-conversion.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: December 16, 2014
    Assignee: ParkerVision, Inc.
    Inventors: David F. Sorrells, Gregory S. Rawlins, Michael W. Rawlins
  • Patent number: 8907821
    Abstract: A computer-implemented method and apparatus are disclosed for decoding an encoded data signal. In one embodiment, the method includes accessing, in a memory, a set of signal elements. The encoded data signal is received at a computing device. The signal includes signal fragments each having a projection value and an index value. The projection value has been calculated as a function of at least one signal element of the set of signal elements and at least a portion of the data signal. The index value associates its respective signal fragment with the at least one signal element used to calculate the projection value. The computing device determines amplitude values based on the projection values in the signal fragments. The decoded signal is determined using the amplitude values and the signal elements associated with the at least some of the signal fragments.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: December 9, 2014
    Assignee: Google Inc.
    Inventor: Pascal Massimino
  • Patent number: 8903031
    Abstract: A clock recovery circuit includes a first phase detector for measuring the phase difference between a first clock signal from a voltage controlled oscillator (VCO) and a data signal. A phase shifter responsive to a control signal based on this phase difference adjusts the phase of an incoming clock signal to yield a second clock signal. The phase difference between the first clock signal and the second clock signal is measured and the resulting signal is low-pass filtered to derive a control signal for controlling the VCO. The phase locked loop including the VCO filters out jitter.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: December 2, 2014
    Assignee: Rambus Inc.
    Inventor: Carl W. Werner
  • Patent number: 8891663
    Abstract: A method and apparatus for transmitting digital data in a cellular environment. Adjacent cells of the cellular system are prevented from simultaneously transmitting data. Because the noise from transmissions of adjacent cells is a primary source of interference, the transmission rate of power limited base stations can be dramatically increased when the noise from adjacent cells is eliminated. The transmissions to each subscriber station are made at a fixed transmission power level. However, the data rate of transmitted signals differs from one subscriber station to another depending the path loss differences. In a first exemplary embodiment, the data rate of transmissions to a subscriber station is determined by selecting an encoding rate for the transmitted signal while holding the symbol rate constant.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: November 18, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Ephraim Zehavi
  • Patent number: 8891718
    Abstract: A system for simultaneous transmission (1) of Morse signaling over a radio communication using digital technology, comprising a signal generator (2) with at least one digital modulation which includes at least one amplitude modulation component; a Morse code generator (3) that generates Morse tones in analog form; and a first attenuator module (4), controlled by the Morse code generator (4). In this way, a signal with digital modulation generated by the signal generator (2) is attenuated in amplitude by the first attenuator module (4), the amplitude attenuation being the function of the amplitude of the waveform generated by the Morse code generator (3). In this way the transmission of information by digital modulation is simultaneous with the transmission of the Morse code by analog amplitude modulation (AM), using one single radiofrequency (RF) carrier signal and without service interruption or information loss.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: November 18, 2014
    Assignee: Teltronic, S.A.
    Inventors: Javier Cordova Val, Ignacio Cano Lazaro, Roman Abadias Pelacho
  • Patent number: 8848834
    Abstract: A method for detecting a format of a frame in a communication system is presented. An embodiment of the method includes receiving the frame comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols. The plurality of OFDM symbols may include at least one signal field symbol. The method further includes determining a modulation associated with the at least one signal field symbol. The modulation may be a first modulation or a second modulation. Also, the method includes estimating a position of the at least one signal field symbol among the plurality of symbols, and extracting a coding rate of the received frame. The method then includes detecting the format of the received frame based on the determined modulation and the estimated position of the at least one signal field symbol, and the extracted coding rate of the received frame.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 30, 2014
    Assignee: Uurmi Systems Pvt. Ltd
    Inventor: Nanda Kishore Chavali
  • Patent number: 8842779
    Abstract: Embodiments of user equipment and methods for determining IQ imbalance parameters are described. In some embodiments, a method for determining in-phase (I) and Quadrature (Q) imbalance (IQ imbalance) parameters based on a known signal in a dual-carrier receiver using at least one controllable frequency offset includes receiving a known signal modulated onto a first radio frequency (RF) carrier frequency and a second RF carrier frequency different than the first RF carrier frequency. The known signal is downconverted to a baseband signal for the carriers by conversion from the respective RF carrier frequencies to an intermediate frequency (IF) using a common RF local oscillator (LO) and by further conversion from IF to baseband using carrier specific IF LOs, where a controllable frequency offset is used. Any controllable frequency offset is removed from the baseband signal for the first and second carriers to produce representations of the received signals.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: September 23, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Chester Park, Jim Svensson
  • Patent number: 8831077
    Abstract: Systems and methods are disclosed for communicating on a pilot wire between Electric Vehicle Service Equipment (EVSE) and an Electric Vehicle (EV). The EVSE and EV exchange a Pulse Width Modulation (PWM) signal on the pilot wire to control charging operations of the EV. Data communications may also be transmitted on the pilot wire, such as between transmit and receive modems. The modems transmit communication signals either continuously, without regard to the state of the PWM signal, or only when the PWM is in an off-state. If transmitting while PWM is on, the modem needs a large coupling impedance and/or a large signal injection. To transmit only when the PWM is off, the modem may use a blocking diode in the coupling circuit or may synchronize to the pulses in the PWM signal.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: September 9, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Badri Varadarajan, Il Han Kim, Anand Dabak, Edward Mullins
  • Patent number: 8831160
    Abstract: An apparatus includes a first clock source, a second clock source and circuitry configured to supply a clock signal to a circuit. The circuitry operates to change the clock signal from one frequency to another different frequency. This change is made in a manner whereby no clock signal is supplied during a period of time when the change from the one frequency to the another different clock frequency is being made.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: September 9, 2014
    Assignees: STMicroelectronics (Research & Development) Limited, STMicroelectronics (Grenoble 2) SAS
    Inventors: Andrew Ferris, Ignazio Antonino Urzi
  • Patent number: 8824564
    Abstract: Aspects of a method and system for redundancy-based decoding of video content are provided. A bit sequence comprising video content may be decoded in a multilayer process based on a decoding algorithm and at least one physical constraint. The decoding algorithm may be based on the Viterbi algorithm. Whether the bit sequence comprises video content may be determined based on information provided by a portion of a packet header or by packet priority information necessary for enabling quality of service applications. The physical constraint may be based on border, DC component, and/or low frequency continuity between neighboring discrete cosine transform (DCT) blocks. The physical constraint may also be based on the consistency of video data coded by a variable length coding (VLC) operation. At least one physical constraint test may be performed on selected estimated video bit sequences to select a decoded output video bit sequence.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 2, 2014
    Assignee: Broadcom Corporation
    Inventors: Arie Heiman, Jeyhan Karaoguz
  • Patent number: 8824597
    Abstract: Several circuits and methods for field-based communication are provided. In an embodiment, a field-based communication circuit includes a receiver circuit, a detection circuit and a control circuit. The receiver circuit is configured to receive a field input signal from a field source. The detection circuit includes a voltage detection circuit and a current detection circuit configured to detect a voltage signal and a current signal, respectively associated with the field input signal. The control circuit is configured to trigger a selection of one of the voltage detection circuit and the current detection circuit based on a detection of a signal magnitude of one of the voltage signal and the current signal relative to at least a first predetermined threshold level, wherein the selection of one of the voltage detection circuit and the current detection circuit facilitates a demodulation of one of the voltage signal and the current signal.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: September 2, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Yogesh Darwhekar, Vikas Singh, Ronen Issac, Matan Ben-Shachar
  • Patent number: 8817892
    Abstract: A data communications system having a plurality of communication devices including a host having a first receiver and a second receiver; and one or more clients, each client including a transmitter coupled between a signal node and a transmitter node, the transmitter selectively transmitting a multistate signal from the signal node to the transmitter node; and a single conductor daisy-chain loop redundantly communicating each multistate signal from each the transmitter to both receivers, the single conductor daisy-chain loop electrically communicating each transmitter node to the receivers. A data communications method including a) transmitting selectively a multistate signal from each of one or more clients; b) communicating electrically each multistate signal to a first location on a host using a single conductor coupled to each the client; and c) communicating electrically each multistate signal to a second location on the host using the single conductor.
    Type: Grant
    Filed: August 12, 2012
    Date of Patent: August 26, 2014
    Assignee: Tesla Motors, Inc.
    Inventors: Nathaniel Brian Martin, Ian Casimir Dimen, Samuel Douglas Crowder
  • Patent number: 8817891
    Abstract: A millimeter wave wireless (M2W2) interconnect is used for transmitting and receiving signals at millimeter-wave frequencies for short-range wireless communication with high data rate capability. The transmitter and receiver antennae may comprise an on-chip differential dipole antenna or a bond wire differential dipole antenna. The bond wire differential dipole antenna is comprised of a pair of bond wires connecting between a pair of pads on an integrated circuit (IC) die and a pair of floating pads on a printed circuit board (PCB).
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: August 26, 2014
    Assignee: The Regents of the University of California
    Inventors: Sai-Wang Tam, Mau-Chung Frank Chang
  • Patent number: 8811528
    Abstract: Transmitter-based techniques are provided for compensation of intersymbol interference and/or simultaneous switching outputs, using selective pulse width modulation. One or more signals are transmitted by detecting whether one or more of said signals satisfy one or more predefined signal corruption conditions, wherein said predefined signal corruption conditions indicate that one or more of said signals are anticipated to exhibit one or more of intersymbol interference and simultaneous switching outputs; and selecting a delay for one or more of the signals based on the one or more predefined signal corruptions conditions.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: August 19, 2014
    Assignee: LSI Corporation
    Inventors: Thomas Hughes, Victor K. Suen
  • Patent number: 8804855
    Abstract: A network infrastructure for mobile machines which are usable in explosive areas, having inherently safe participants and not inherently safe network participants the latter being arranged in pressure-resistant housings. The machine has at least one controller for actuating at least one not inherently safe participant. In order to provide a network infrastructure which avoids the drawbacks of the prior art, the machine has, outside the pressure-resistant housing for the first controller, at least one second, inherently safe controller for actuating at least one inherently safe participant, wherein the first controller forms a data distributor for a plurality of not inherently safe participants and the second controller forms a data distributor for a plurality of inherently safe participants, and wherein the first data distributor and the second data distributor are linked via an electrically decoupled data communication link.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: August 12, 2014
    Assignee: Caterpillar Global Mining Europe GmbH
    Inventors: Markus Lenzing, Henner Ruschkamp, Karsten Schwinne, Johannes Wesselmann
  • Patent number: 8804891
    Abstract: A frequency detector includes a multi-phase clock generation unit, a sampling unit connected to the multi-phase clock generation unit and a digital logic unit connected to the sampling unit. An inputted single-phase clock is received by the multi-phase clock generation unit and transformed into a multi-phase clock. Inputted random data are received by the sampling unit and sampled by the multi-phase clock. Each data bit of the random data is divided into several sampling intervals according to a phase number of the multi-phase clock. The digital logic unit analyzes sampling values logically, judges the corresponding sampling interval of each sampling value and outputs signals for indicating that a frequency of the random data is higher or lower than the frequency of the single-phase clock based on differences in the corresponding sampling intervals of the sampling values at two adjacent times. A method for detecting frequencies is further provided.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: August 12, 2014
    Assignee: IPGoal Microelectronics (SiChuan) Co., Ltd.
    Inventors: Yong Quan, Guosheng Wu
  • Patent number: 8792596
    Abstract: According to an embodiment of the invention, an apparatus includes a decoder configured to decode transmission parameter signaling data from a signal, the signal including the transmission parameter signaling data on a lower level than a level on which service information is included; and a determiner configured to determine from decoded transmission parameter signaling data if the signal carries time-sliced elementary streams and configured to determine from the decoded transmission parameter signaling data whether the signal has a forward error correction framing structure, wherein the apparatus is a receiver and is configured to operate in a network. The apparatus further includes a controller configured to disregard a signal in response to determining that the signal does not carry time-sliced elementary streams.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: July 29, 2014
    Assignee: Nokia Corporation
    Inventors: Jani Vare, Jarno Kallio, Matti Puputti, Pekka Talmola
  • Patent number: 8793562
    Abstract: An apparatus and method for reducing power consumption of a receiver by performing a Hybrid Automatic Repeat reQuest (HARQ) according to a detected decoding error are provided. The apparatus includes a decoding reliability metric generator for setting a decoding result as a decoding reliability metric, which is a reference value for determining a code block having a decoding error, based on a decoding result, a decoding reliability metric buffer for storing the decoding reliability metric set by the decoding reliability metric generator and a code block controller for, when the decoding error occurs, identifying code blocks having the decoding error by checking the decoding reliability metric and for controlling to decode the identified code blocks.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: July 29, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Hyoung Kim, Han-Ju Kim
  • Patent number: 8774305
    Abstract: Circuitry for use in aligning bytes in a serial data signal (e.g., with deserializer circuitry that operates in part in response to a byte rate clock signal) includes a multistage shift register for shifting the serial data signal through a number of stages at least equal to (and in many cases, preferably more than) the number of bits in a byte. The output signal of any shift register stage can be selected as the output of this “bit slipping” circuitry so that any number of bits over a fairly wide range can be “slipped” to produce or help produce appropriately aligned bytes. The disclosed bit slipping circuitry is alternatively or additionally usable in helping to align (“deskew”) two or more serial data signals that are received via separate communication channels.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: July 8, 2014
    Assignee: Altera Corporation
    Inventor: Richard Yen-Hsiang Chang
  • Patent number: 8767879
    Abstract: A transceiver includes a channel estimator configured to generate, based on a packet received over a channel, an initial channel estimate for the channel. A compensator is configured to compensate a phase of the initial channel estimate to adjust for a carrier frequency offset associated with the channel, and ii) selectively compensate the initial channel estimate for sampling phase jitter. The selectively compensating the initial channel estimate for sampling phase jitter includes compensating the initial channel estimate for sampling phase jitter responsive to the packet having been received at a data rate greater than a first predetermined data rate, and not compensating the initial channel estimate for sampling phase jitter responsive to the packet having been received at a data rate less than or equal to the first predetermined data rate.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: July 1, 2014
    Assignee: Marvell International Ltd.
    Inventor: Ravi Narasimhan