Patents Issued in December 15, 2015
-
Patent number: 9214941Abstract: An input/output circuit implemented in an integrated circuit is described. The input/output circuit comprises an input/output pad and a voltage control circuit coupled to the input/output pad. The voltage control circuit sets a voltage at the input/output pad at a first voltage when the input/output pad is implemented as an input pad and at a second voltage when the input/output pad is implemented as an output pad. Methods of implementing input/output circuits in an integrated circuit are also described.Type: GrantFiled: August 30, 2013Date of Patent: December 15, 2015Assignee: XILINX, INC.Inventors: Aman Sewani, Parag Upadhyaya
-
Patent number: 9214942Abstract: A complementary push-pull buffer includes complementary transconductance (GM) devices connected as source-followers to drive a load. Current flowing through the GM devices is split, on the source side, between constant-current source circuitry and a push signal current multiplier (e.g., a current mirror) and, on the sink side, between constant-current sink circuitry and a pull signal current multiplier. The devices used to implement the constant-current circuits and the current multipliers are sized such that the current multipliers provide low output impedance, while the current splitting provides low overall power consumption.Type: GrantFiled: February 17, 2014Date of Patent: December 15, 2015Assignee: FREESCALE SEMICONDUCTOR, INC.Inventor: Nishant Singh Thakur
-
Patent number: 9214943Abstract: A fractional frequency divider counts pulses of a digital input clock signal and enables a clock gating module when a preset count is reached. The clock gating module combines the outputs of two clock gating cells that receive, respectively, the input clock signal and an inverted version of the input clock signal. Output pulses are produced on both positive and negative edges of the input clock signal. This permits generation of output clock pulses that can be set to have a spacing and width granularity of half an input clock period, giving the advantages of low jitter and fine duty cycle control.Type: GrantFiled: October 16, 2014Date of Patent: December 15, 2015Assignee: FREESCALE SEMICONDUCTOR, INC.Inventors: Akshat Gupta, Simon J. Gallimore, Deepak Negi, Garima Sharda
-
Patent number: 9214944Abstract: A digital counter includes: a plurality of flip-flops configured to generate a plurality of count signals; and a controller configured to prevent level transition of an input terminal of a flip-flop to generate a count signal corresponding to a least significant bit (LSB), in response to a clock signal and a count end signal.Type: GrantFiled: September 5, 2013Date of Patent: December 15, 2015Assignee: SK Hynix Inc.Inventors: Sung Mook Kim, Byong Deok Choi, Jong Seok Kim
-
Patent number: 9214945Abstract: An apparatus of digital phase lock loop and method are provided. In one embodiment, an apparatus comprises: an analog-to-digital converter (ADC) for converting a voltage level of an output clock into a first digital word in accordance with a timing defined by a reference clock; a first digital loop filter for receiving the first digital word and outputting a control code; a circuit to receive the reference clock and the output clock and output an offset code according to a frequency error of the output clock with respect to a frequency of the reference clock; an adder for generating an offset control code by summing the control code with the offset code; and a digitally controlled oscillator for outputting the output clock in accordance with the offset control code.Type: GrantFiled: February 27, 2012Date of Patent: December 15, 2015Assignee: REALTEK SEMICONDUCTOR CORP.Inventor: Chia-Liang Lin
-
Patent number: 9214946Abstract: A phase locked loop circuit is provided which includes a bang-bang phase frequency detector configured to receive a reference signal and a feedback signal, detect a phase difference between the reference signal and the feedback signal, output a detection signal on the based on a result of the detection; an analog-digital mixed filter configured to receive the detection signal and output a control signal on the basis of the received detection signal; a voltage controlled oscillator configured to output an output signal in response to the control signal; and a divider configured to divide the output signal by n to output as the feedback signal. The detection signal is a digital signal, and the control signal is an analog signal.Type: GrantFiled: December 17, 2013Date of Patent: December 15, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nan Xing, Jaejin Park, Jenlung Liu, Tae-Kwang Jang
-
Patent number: 9214947Abstract: This disclosure relates to an all digital phase-lock loop (ADPLL). The ADPLL determines an error generated by a digitally controlled oscillator (DCO) which is operated using a tuning word, stores information related to the error, and compensates for the error based on the stored information.Type: GrantFiled: February 19, 2013Date of Patent: December 15, 2015Assignee: Intel Mobile Communications GmbHInventor: Stefan Mendel
-
Patent number: 9214948Abstract: A comparator tracking scheme for an analog-to-digital converter (ADC) may implement a dynamic window size by varying, over time, a number of comparators powered up to convert an analog input signal to a digital output signal. A comparator-tracking scheme may be implemented, for example, in a controller coupled to a plurality of comparators in an ADC. For example, the controller may determine a window size for the ADC and determine a window position for the ADC. The controller may then activate comparators of the ADC within a window centered at the window position and having a width of the window size. The controller may determine a window size by analyzing an output of a filter. When the filter output indicates a rapidly changing analog input signal, the controller may dynamically increase a window size of the ADC, which may increase a number of comparators powered on.Type: GrantFiled: April 17, 2014Date of Patent: December 15, 2015Assignee: CIRRUS LOGIC, INC.Inventors: Ku He, Xin Zhao, Xiaofan Fei
-
Patent number: 9214949Abstract: An Analog to Digital Converter (ADC) includes an ADC core, a first switched capacitor voltage regulator, and a second switched capacitor voltage regulator. The ADC core includes a plurality of digital components that sample an incoming signal based on an ADC clock, a first voltage, and a first ground and a plurality of analog components configured to operate using a second voltage and a second ground. The first switched capacitor voltage regulator produces the first voltage and the first ground for the plurality of digital components using a supply voltage, a supply ground, and the ADC clock. The second switched capacitor voltage regulator produces the second voltage and the second ground using the supply voltage, the supply ground, and the ADC clock. Switching of the first and second switched capacitor voltage regulators is performed using complementary and non-overlapping clocks having switching frequency that is based upon the ADC clock.Type: GrantFiled: December 29, 2014Date of Patent: December 15, 2015Assignee: BROADCOM CORPORATIONInventors: Jiangfeng Wu, Tianwei Li
-
Patent number: 9214950Abstract: A flash analog to digital converter (ADC) provides a temperature compensated trim current by applying a first temperature compensated reference current across a replica resistor ladder. The reference current is mirrored to a trim digital to analog converter, which outputs a fractional portion of the temperature compensated reference current. The proportional trim current is then fed back to the reference current to provide a trimmed temperature compensated reference current. The trimmed reference current is mirrored across the output resistor ladder providing a trimmed current in which the trim varies along with temperature changes due to the trim current being a proportion of the temperature compensated reference current. A proportional trim current which varies with temperature changes is applied to the gain current trim and mismatch current trim in a DAC of a quantizing stage of a sub-ranging ADC.Type: GrantFiled: April 23, 2015Date of Patent: December 15, 2015Assignee: Lockheed Martin CorporationInventors: Brandon R. Davis, Toshi Omori, Lloyd F. Linder, Victoria T. Pereira
-
Patent number: 9214951Abstract: A circuit includes an input dispatch unit for receiving an input signal and a calibration signal and outputting N dispatched signals in accordance with a selection signal. The circuit also includes N analog-to-digital converter (ADC) units for receiving the N dispatched signals, N control signals, and N mapping tables and outputting N raw data, and N refined data, respectively. An output dispatch unit receives the N refined data and outputting an output data in accordance with the selection signal, and a calibration controller receives the N raw data and outputting the selection signal, the N control signals, the N mapping tables, and a digital code. A DAC (digital-to-analog converter) receives the digital code and outputting the calibration signal, wherein one of the dispatched signals, as specified by the selection signal is from the calibration signal while the other dispatched signals are from the input signal.Type: GrantFiled: May 30, 2014Date of Patent: December 15, 2015Assignee: REALTEK SEMICONDUCTOR CORP.Inventor: Chia-Liang (Leon) Lin
-
Patent number: 9214952Abstract: A sensor includes: a detection element; an analog front end; a digital back end, the digital back end being connected to a control unit via a digital interface, and the sensor providing sampled data in the digital back end; and a timer unit for providing pieces of time information of the sampled data in the digital back end which the control unit is able to access via the digital interface.Type: GrantFiled: March 6, 2013Date of Patent: December 15, 2015Assignee: ROBERT BOSCH GMBHInventors: Thomas Claus, Rainer Dorsch, Gerhard Lammel
-
Patent number: 9214953Abstract: A multi-level data weighted averaging circuit for inclusion in a multi-bit DAC circuit has a thermometer encoder that includes a binary to thermometer code conversion array configured for retaining or generating a multi-bit code representing an amplitude to be developed by each of the DAC element of the DAC circuit. The thermometer encoder is in communication with a multi-bit delta/sigma modulator to receive an oversampled binary coding representing an amplitude of a sampling of an analog signal. The oversampled binary coding is applied to an element selector to select the elements retaining or generating the element binary strings of bits of the multi-bit thermometer code. The multi-bit thermometer code is transferred to a rotational dynamic element matching circuit that rotationally selects order that the DAC elements are to receive each of the element binary strings of bits of the multi-bit thermometer code.Type: GrantFiled: September 8, 2014Date of Patent: December 15, 2015Assignee: Dialog Semiconductor (UK) LimitedInventor: Zakaria Mengad
-
Patent number: 9214954Abstract: A computer implemented method of performing data compression includes applying, with a computing device, a hash function to a selected part of a character string to calculate a hash value; searching, using the hash value, through entries in a bucket chain having the hash value previously registered in a hash table, and finding a longest matching character string; acquiring, an index indicating that a longest matching character string cannot be found in the search through the entries and thus the search operation is wasted; and switching the hash function to a different hash function for expanding the selected part of the character string, without reconstructing the hash table, when the index exceeds a predetermined threshold.Type: GrantFiled: March 6, 2015Date of Patent: December 15, 2015Assignee: International Business Machines CorporationInventors: Takeshi Ogasawara, Toshio Suganuma
-
Patent number: 9214955Abstract: A Boolean entropy decoder including a decoding module, a buffer and an updating module is provided. The decoder sequentially generates a first boolean value, a second boolean value and a third boolean value. The first and second boolean values are generated during a same cycle. The decoding module requires a first bit amount while generating a first value corresponding to the first boolean value, and requires a second bit amount while generating a second value corresponding to the second boolean value. The buffer temporarily stores a bit segment in the bitstream to be provided to the decoding module. The updating module fetches a new bit segment according to the first bit amount and the second bit amount and updates the buffer. The decoding module selectively updates a value corresponding to the third boolean value after the buffer is updated.Type: GrantFiled: December 23, 2011Date of Patent: December 15, 2015Assignee: MSTAR SEMICONDUCTOR, INC.Inventors: Ying-Chieh Tu, Jin-Mu Wu
-
Patent number: 9214956Abstract: A semiconductor device includes an error detection unit suitable for receiving data and a cyclic redundancy check (CRC) code, and for outputting a detection signal by detecting a transmission error of the data, and a signal change unit suitable for generating error information based on the detection signal while changing a signal form of the error information based on a signal transmission environment of the data.Type: GrantFiled: November 20, 2013Date of Patent: December 15, 2015Assignee: SK Hynix Inc.Inventor: Sung-Hwa Ok
-
Patent number: 9214957Abstract: A calculation, prediction and validation method can include receiving a portion of a data packet in a data buffer, computing, in a processor, information related to the checksum of the data packet based on the portion of the data packet and processing the data packet in the processor.Type: GrantFiled: October 17, 2012Date of Patent: December 15, 2015Assignee: International Business Machines CorporationInventors: Carl A. Bender, Michael J. Cadigan, Jr., Nihad Hadzic, Howard M Haynie, Jeffrey M. Turner, Raymond Wong
-
Patent number: 9214958Abstract: Embodiments of the present invention provide a method and a decoder for processing decoding. The method includes: acquiring a combined generator matrix Gcom of a Turbo code generator matrix Gturbo and a cyclic redundancy check CRC generator matrix Gcrc, and acquiring a log likelihood ratio sequence outputted by a Turbo code decoder; and performing CRC-assisted iterative ordered statistics decoding of a Turbo code by using the combined generator matrix Gcom and the log likelihood ratio sequence, so as to obtain a decoding processing result. A decoding performance gain can be improved by using the method and the device for decoding a Turbo code provided in the embodiments of the present invention.Type: GrantFiled: September 16, 2014Date of Patent: December 15, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Jie Xiong, Yuejun Wei
-
Patent number: 9214959Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for performing data decoding including skipping one or more codeword blocks in the data decoding process. In one embodiment a data processing system includes a skip control circuit operable to skip re-application of a data decode algorithm to a portion of a codeword where at least the number of unsatisfied checks for the portion is zero.Type: GrantFiled: February 19, 2013Date of Patent: December 15, 2015Assignee: Avago Technologies General IP (Singapore) pte. Ltd.Inventors: Shaohua Yang, Fan Zhang, Chung-Li Wang, Shu Li
-
Patent number: 9214960Abstract: An apparatus and method for transmitting and receiving data in a wireless communication is provided. The method includes Low Density Parity Check (LDPC)-encoding LDPC information bits to generate a codeword, determining a number (Npunc) of bits to be punctured in parity bits of the codeword, determining a number (Npunc—group) of parity bit groups in which all bits are punctured, and puncturing the all bits within 0th to (Npunc—group?1)th parity bit groups indicated by a puncturing pattern, wherein the puncturing pattern is defined as an order of the parity bit groups defined as 29, 45, 43, 27, 32, 35, 40, 38, 0, 19, 8, 16, 41, 4, 26, 36, 30, 2, 13, 42, 46, 24, 37, 1, 33, 11, 44, 28, 20, 9, 34, 3, 17, 6, 21, 14, 23, 7, 22, 47, 5, 10, 12, 15, 18, 25, 31 and 39.Type: GrantFiled: July 15, 2014Date of Patent: December 15, 2015Assignee: Samsung Electronics Co., LtdInventors: Hong-Sil Jeong, Sung-Ryul Yun, Hyun-koo Yang, Alain Mourad, Ismael Gutierrez
-
Patent number: 9214962Abstract: An encoding method generates an encoded sequence by performing encoding of a given coding rate according to a predetermined parity check matrix. The predetermined parity check matrix is a first parity check matrix or a second parity check matrix. The first parity check matrix corresponds to a low-density parity check (LDPC) convolutional code using a plurality of parity check polynomials. The second parity check matrix is generated by performing at least one of row permutation and column permutation with respect to the first parity check matrix. An eth parity check polynomial that satisfies zero, of the LDPC convolutional code, is expressible by using a predetermined mathematical formula.Type: GrantFiled: July 24, 2012Date of Patent: December 15, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventor: Yutaka Murakami
-
Patent number: 9214963Abstract: A data storage system configured to adaptively code data and related methods are disclosed. In some embodiments of the present invention, a data storage system includes a controller and a non-volatile memory array having a plurality of memory pages. The controller includes a channel monitor that determines the quality of read signals from the pages when they are read, and provides adjustment metrics to aid in the selection of a code rate, such as a code rate for a low-density parity-check (LDPC) code. In this way, the code rate used for data encoding can be dynamically adjusted to accommodate degradation of the non-volatile memory array over its useable life.Type: GrantFiled: December 21, 2012Date of Patent: December 15, 2015Assignee: Western Digital Technologies, Inc.Inventors: Shayan S. Garani, Kent D. Anderson, Anantha Raman Krishnan, Guangming Lu, Shafa Dahandeh, Andrew J. Tomlin
-
Patent number: 9214964Abstract: Systems and methods are provided for using a product code having a first dimension and a second dimension to encode data, decode data, or both. An encoding method includes receiving a portion of user data to be written in the first dimension, and computing first parity symbols with respect to the first dimension for the portion of user data. Partial parity symbols with respect to the second dimension are computed for the portion of user data and are used to obtain second parity symbols for the portion of user data. A decoding method includes decoding a first codeword in the first dimension. When the decoding the first codeword in the first dimension is successful, a target syndrome of a second codeword in the second dimension is computed based on a result of the decoding of the first codeword, wherein the first codeword partially overlaps with the second codeword.Type: GrantFiled: September 19, 2013Date of Patent: December 15, 2015Assignee: Marvell International Ltd.Inventors: Nedeljko Varnica, Gregory Burd, Panu Chaichanavong
-
Patent number: 9214965Abstract: A method for improving data integrity in a non-volatile memory system includes: accessing a non-volatile memory cell for retrieving hard data bits; generating soft information by capturing a reliability of the hard data bits; calculating syndrome bits by applying a lossy compression to the soft information; and generating a host data by executing a low density parity check (LDPC) iterative decode on the hard data bits and the syndrome bits.Type: GrantFiled: November 8, 2013Date of Patent: December 15, 2015Assignee: SANDISK ENTERPRISE IP LLCInventors: James Fitzpatrick, Amirhossein Rafati
-
Patent number: 9214966Abstract: Embodiments of the present invention disclose a method and an apparatus for controlling power consumption of a TURBO decoder, which relate to the field of wireless communications technologies, can control a peak operation amount of the TURBO decoder to be within a certain range, and avoid occurrence of greater peak power consumption during a work process of the TURBO decoder, thereby lowering the manufacturing cost of a device using the TURBO decoder. The method of the present invention includes: determining size of a transmission block; determining, according to the size of the transmission block, the number of iteration times required for the TURBO decoder to process the transmission block, so as to control an operation amount required for the TURBO decoder to process the transmission block. The present invention is applicable to the TURBO decoder.Type: GrantFiled: June 28, 2013Date of Patent: December 15, 2015Assignee: Huawei Technologies Co., Ltd.Inventor: Jiaji Zhang
-
Patent number: 9214967Abstract: Disclosed are circuits and methods for reducing insertion loss effects associated with radio-frequency (RF) power couplers. In some implementations, an RF circuit can include a first path configured to route a first RF signal in a first band, and a second path configured to route a second RF signal in a second band. The RF circuit can further include a power detector having a first coupler configured to detect power along the first path, and a second coupler configured to detect power along the second path. The first coupler and the second couplers can be connected in a daisy-chain configuration. The RF circuit can further include an adjustment circuit implemented along at least one of the first path and the second paths. The adjustment circuit can be configured to move a frequency response feature associated with the power detector to a different frequency range.Type: GrantFiled: October 24, 2013Date of Patent: December 15, 2015Assignee: Skyworks Solutions, Inc.Inventors: Russ Alan Reisner, John C Baldwin
-
Patent number: 9214968Abstract: Methods and apparatus are provided for amplifying an input signal. An electronic circuit system comprises a first circuit comprising a power amplifier, configured to receive a first branch of an input signal, and generate a first amplified signal based on the input signal of the first branch; a second circuit, configured to receive a second branch of the input signal, generate a cancellation signal based on the input signal of the second branch, and combine the first amplified signal and the cancellation signal to generate a second amplified signal. The second circuit comprises an interference re-construction module, which is configured to model an inverse characteristic of residual distortion and interference of the first circuit via a predefined re-construction function, and generate an anti-phased interference signal based on the input signal of the second branch and the predefined re-construction function. The cancellation signal is generated from the anti-phased interference signal.Type: GrantFiled: July 24, 2013Date of Patent: December 15, 2015Assignee: Nokia Technologies OyInventor: Zhancang Wang
-
Patent number: 9214969Abstract: The scalable digital predistortion system and method provides compensation for the nonlinear distortions of power amplifiers and transmitters. The scalable digital predistortion system and its associated update algorithms provide scalability in terms of signal bandwidth and average power, allowing for low complexity updates following changes in the signal's bandwidth and/or power level. The method applies both memory polynomial functions and memoryless predistortion functions for compensating for the nonlinear distortions.Type: GrantFiled: October 23, 2014Date of Patent: December 15, 2015Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventor: Oualid Hammi
-
Patent number: 9214970Abstract: In one embodiment, the method includes determining, at a network element, a first filter component based on reference sequences for user equipments in a first set. The method further includes determining a second filter component. The second component is based on a plurality of received signals and has estimated contributions to the plurality of received signals by the user equipments in the first set removed. The plurality of received signals are associated with a plurality of antennas. The method further includes filtering a selected received signal based on the first and second filter components to obtain an estimated signal for a selected user equipment.Type: GrantFiled: October 15, 2013Date of Patent: December 15, 2015Assignee: Alcatel LucentInventors: Krishna Balachandran, Joseph H. Kang, Kemal M. Karakayali, Kiran M. Rege
-
Patent number: 9214971Abstract: An apparatus and method for evaluating statistical interference concerning a multi-source noise environment of an electromagnetic (EM) zone are disclosed. The apparatus for evaluating statistical interference may include a receiver to receive an EM wave in a preset frequency band, a spectrum analyzer to analyze the received EM wave and to measure interference in the preset frequency band, a frequency selector to select an interest frequency in the frequency band based on a level of the measured interference, an amplitude probability distribution (APD) measurement unit to measure an APD of an interference signal with respect to the interest frequency, and a comparator to compare the measured APD to a preset limit and to draw a probability of the limit or higher of interference occurring.Type: GrantFiled: June 6, 2013Date of Patent: December 15, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: Su Na Choi, Seung Keun Park
-
Patent number: 9214972Abstract: In general, the present invention relates to an adaptive IF filter for a multiband receiver. According to certain aspects, the adaptive IF filter can be dynamically configured as a low-pass architecture or a complex band-pass architecture. According to further aspects, the adaptive IF filter enables a wideband receiver which can simultaneously receive multiple frequency bands, but still protect itself from close-in or in-band jammers by selecting a single frequency band or subset of frequency bands. This retains the multiband functionality of the receiver under nominal conditions, which is traded off dynamically for a single-frequency-band with high jammer resistance under severe jamming conditions. According to still further aspects, the approach of the invention is particularly useful for GNSS receivers, since unlike a cellular transceiver, a temporary loss of signal is not catastrophic to GNSS receivers due to the long integration times.Type: GrantFiled: June 13, 2013Date of Patent: December 15, 2015Assignee: QUALCOMM TECHNOLOGIES INTERNATIONAL, LTD.Inventors: Noshir Dubash, Joakim Landmark
-
Patent number: 9214973Abstract: The present disclosure includes systems and techniques relating to time-varying notch filter. In some implementations, an apparatus includes a time-variant notch filter and a controller. The time-variant notch filter includes a notch depth and a notch bandwidth. At least one of the notch depth or the notch bandwidth is based on a coefficient of the notch filter. The controller is configured to set at least one of the notch depth to a first depth or the notch bandwidth to a first bandwidth by setting a value of the coefficient to a first value during a ramp-up of the notch filter before a packet is received. The controller is also configured to set at least one of the notch depth to a second depth or the notch bandwidth to a second bandwidth by adjusting the value of the coefficient to a second value after the packet is received.Type: GrantFiled: July 12, 2013Date of Patent: December 15, 2015Assignee: Marvell International Ltd.Inventors: Swaroop Venkatesh, Vijay Ahirwar
-
Patent number: 9214974Abstract: A method for detecting wireless microphone signals based on an augmented spectral correlation function is provided. The method includes obtaining an augmented spectral correlation function (SCF) of acquired digital signals based on a SCF of the digital signal and a conjugate SCF proposed in the present invention, calculating a statistic, and comparing it with a decision threshold simulated or calculated through a predetermined method to determine whether the digital signal is a wireless microphone signal. With the proposed augmented SCF, the present invention overcomes a difficulty in sensing TV white space, namely, the inability of most existing detection methods to effectively distinguish between narrowband interferences and wireless microphone signals. Meanwhile, the detection method has low algorithm complexity and is easy to implement in real systems.Type: GrantFiled: May 23, 2012Date of Patent: December 15, 2015Assignee: University of Science and Technology of ChinaInventors: Huanhuan Sun, Wenyi Zhang, Taitai Zhang
-
Patent number: 9214975Abstract: A method and apparatus are provided by which a radio communication device with multi-watch receivers improves the comprehension of a high-priority message when the high-priority message is overlapped in time with a normal-priority message. A first receiver of the radio communication device receives a first incoming message over a first channel, and a second receiver of the radio communication device receives a second incoming message over a second channel. The radio communication device, upon receiving the first and second incoming messages, detects that a portion of the first incoming message overlaps in time with a portion of the second incoming message. The radio communication device further determines whether at least one of the first or the second incoming message is a high-priority message and repeats the determined high-priority message when at least one of the first or second incoming messages is a high-priority message.Type: GrantFiled: November 22, 2013Date of Patent: December 15, 2015Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Stuart S Kreitzer, Jesus F Corretjer
-
Patent number: 9214976Abstract: A display apparatus including a display module further including a control board for controlling an operation of the display module to display an image. An outer casing unit accommodates the display module, and a wireless communication unit performs wireless communication with an external communication device. The wireless communication unit includes at least one antenna for transmitting and receiving a radio signal to and from the external communication device, and a wireless communication board converts the radio signal received from the antenna into an electrical signal and transmits the electrical signal to the control board or transmits the electrical signal provided from the control board to the antenna, wherein the antenna and the wireless communication board are arranged to be spatially separated from each other.Type: GrantFiled: November 15, 2012Date of Patent: December 15, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: In-beom Kim, Chang-joo Jung
-
Patent number: 9214977Abstract: Technologies are described for reliably constraining a maximum transmission power of a mobile communication device such as a cellular phone so that RF radiation associated with that transmission and incident to a head of the device's user can be held at or below predetermined “safe” levels. Upon determining an operational or communication mode of the mobile communication device where it is likely to be held against or very near the user's head, its maximum transmit power may be reduced until the near-head operation is completed. The reduction may be to a fixed maximum level or may be adjusted to allow for a maximum amount of radiated energy over a period of time. The reduction may also take into account adjustment factors such as frequency band, modulation, antenna gain, and similar factors.Type: GrantFiled: December 28, 2011Date of Patent: December 15, 2015Assignee: Empire Technology Development LLCInventor: Elliott H. Drucker
-
Patent number: 9214978Abstract: A circuit comprises a transmitter to provide a transmit signal. The circuit also comprises a coupler element to receive the transmit signal at an input port, to provide a first representation of the transmit signal at an antenna port and a second representation of the transmit signal at a testing port. The circuit further comprises a monitoring receiver unit. The monitoring receiver unit is coupled to the testing port. Furthermore, the monitoring receiver unit is configured to determine a characteristic of the second representation of the transmit signal.Type: GrantFiled: December 20, 2013Date of Patent: December 15, 2015Assignee: Infineon Technologies AGInventors: Christoph Wagner, Herbert Jaeger
-
Dual mode power amplifier control interface with a multi-mode general purpose input/output interface
Patent number: 9214979Abstract: In accordance with some embodiments, the present disclosure relates to a dual mode control interface that can be used to provide both a radio frequency front end (RFFE) serial interface and a two-mode general purpose input/output (GPIO) interface within a single digital control interface die. In certain embodiments, the dual mode control interface, or digital control interface, can communicate with a power amplifier. Further, the dual mode control interface can be used to set the mode of the power amplifier.Type: GrantFiled: June 10, 2014Date of Patent: December 15, 2015Assignee: Skyworks Solutions, Inc.Inventor: David Steven Ripley -
Patent number: 9214980Abstract: There is a need to reduce secondary intermodulation distortion that may occur in a reception circuit of a high-frequency signal processor and a wireless communication system having the same. In test mode, for example, a test signal generating circuit TSGEN generates a test signal RFtst at f_tx±0.5 MHz. The test signal RFtst is input to a mixer circuit MIXrx_I (MIXrx_Q). A correction circuit block CALBK detects an IM2 component resulting from the MIXrx_I (MIXrx_Q). The CALBK varies a differential balance for the MIXrx_I (MIXrx_Q) and concurrently monitors a phase for the IM2 component resulting from MIXrx_I (MIXrx_Q). The CALBK searches for the differential balance corresponding to a transition point that allows the phase to transition by approximately 180°. The MIXrx_I (MIXrx_Q) operates in normal mode using the differential balance as a search result.Type: GrantFiled: March 4, 2015Date of Patent: December 15, 2015Assignee: Renesas Electronics CorporationInventors: Satoru Tomisawa, Hiroaki Matsui, Kazuaki Hori, Tetsuya Wakuda, Sungwoo Cha
-
Patent number: 9214981Abstract: A switching device and a method and medium for using the switching device are provided. The switching device is associated with a remote radio unit (RRU) and an antenna of a base station and comprises a plurality of switching cables arranged in predetermined configurations including a single-layer beam forming configuration, a dual-layer beam forming configuration, and a MIMO configuration. In response to inputs received from UEs served by the base station, the switching device can implement the configuration best-suited to target the UEs.Type: GrantFiled: December 2, 2013Date of Patent: December 15, 2015Assignee: Sprint Communications Company L.P.Inventors: Sungki Park, Brent Scott, Saied Kazeminejad, Brett Christian, Senthil K. Veeraragavan
-
Patent number: 9214982Abstract: The present invention provides an activated code channel detection method. The method includes: performing de-scrambling and de-spreading on a received signal according to a node corresponding to a current spreading factor, obtaining symbol energy corresponding to each node; acquiring a first decision parameter and a second decision parameter according to symbol energy of two adjacent nodes of a same parent node and a pre-acquired noise threshold, where the first decision parameter is a comparison result of comparing the noise threshold with symbol energy of each of the two adjacent nodes, and the second decision parameter is a comparison result of comparing the symbol energy of the two adjacent nodes; detecting modulation modes of code channels corresponding to the two adjacent nodes, obtaining a modulation mode detection result; and executing activated code channel detection according to the first decision parameter, the second decision parameter, and the modulation mode detection result.Type: GrantFiled: June 5, 2013Date of Patent: December 15, 2015Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventor: Jing Guo
-
Patent number: 9214983Abstract: A system that incorporates the subject disclosure may perform, for example, a method for receiving interference information from each of the plurality of communication devices detecting interference information in a plurality of segments of a radio frequency spectrum, correlating the interference information of the plurality of communication devices to generate correlated information, and identifying a plurality of interferers according to the correlated information. Other embodiments are disclosed.Type: GrantFiled: February 16, 2015Date of Patent: December 15, 2015Assignee: ISCO INTERNATIONAL, LLCInventors: Amr Abdelmonem, Sean S. Cordone, Dariusz Seskiewicz, Bill Myers, Krishna Komoravolu
-
Patent number: 9214984Abstract: Embodiments of the present invention relate to an interference cancellation method and system. The interference cancellation system of the present invention includes a centralized cancellation unit and at least two signal processing units, where at least a part of signal processing units in the at least two signal processing units are configured to detect at least a part of user signals in all user signals input into the interference cancellation system and reconstruct the detected user signals; the centralized cancellation unit is configured to perform cancellation on reconstructed signals and the user signals input into the interference cancellation system; and the at least two signal processing units are configured to detect, according to a residual signal after the cancellation, the user signals input into the interference cancellation system and output the detected signals.Type: GrantFiled: June 25, 2014Date of Patent: December 15, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Yongchao Pan, Bitao Li, Liang Xu
-
Patent number: 9214985Abstract: Aspects of the present disclosure are also directed towards a method that includes maintaining a transmission period which has a start time and an end time synchronized to metrological time. Further, this method, in response to the start time, begins transmission of a frame, which includes a plurality of symbols. This transmission occurs over power distribution lines that carry power using alternating current (AC). This method also includes synchronizing a transmission time for each symbol of the plurality of symbols according to a time-based parameter of the AC. In response to reaching an end of the frame, a synchronization symbol period is determined for a synchronization symbol, as a function of the transmission times, for the plurality of symbols and time from the end of the frame to the end time. The synchronization symbol is then transmitted on the power distribution lines.Type: GrantFiled: April 2, 2014Date of Patent: December 15, 2015Assignee: Landis+Gyr Technologies, LLCInventors: Chad Wolter, Rolf Flen, Damian Bonicatto
-
Patent number: 9214986Abstract: A plurality of circuits in a same package including a first integrated circuit having at least one NFC-type communication interface and at least one communication interface of another type, and a second integrated circuit having a security module with a non-volatile memory, the non-volatile memory being used by the NFC interface to store configuration data.Type: GrantFiled: February 14, 2013Date of Patent: December 15, 2015Assignee: STMICROELECTRONICS (ROUSSET) SASInventor: Alexandre Charles
-
Patent number: 9214987Abstract: A near field antenna adapted to an object detecting device, for sensing a plurality of units under test of at least an object under test. The near field antenna comprises a periodic guided-wave structure, a metallic reflection portion and at least two near field magnetic coupling antennas. The periodic guided-wave structure disposed below the object under test has a plurality of conductive units periodically arranged on a first plane. The metallic reflection portion is disposed under the periodic guided-wave structure to form an enclosed space. The near field magnetic coupling antennas are disposed on a second plane parallel to the periodic guided-wave structure, and are located in the enclosed space. The feed point and the ground point of each near field magnetic coupling antenna are fed by a coaxial cable with a feeding direction parallel to the periodically arranged conductive units.Type: GrantFiled: May 18, 2014Date of Patent: December 15, 2015Assignee: AUDEN TECHNO CORP.Inventors: Cheng-Min Yang, Hsien-Wen Liu
-
Patent number: 9214988Abstract: Aspects disclosed herein relate to providing peer communications between NFC enabled devices using an active communication mode. In one example, a communications device is equipped to detect a remote NFC device field within an operating volume, establish a peer communication link with the remote NFC device using an active communication mode, determine that the peer communication link is to be deselected, and transmit a deselection request message to the remote NFC device indicating to the remote NFC device that it has been deselected while maintaining the peer communication link. In another example, a communications device is equipped to sense an operating volume, as part of an active communication mode collision avoidance procedure, determine that no field is sensed, initiate an unmodulated carrier as part of switching an operating field to an on state, and maintain the unmodulated carrier for a collision avoidance threshold duration of time.Type: GrantFiled: November 5, 2012Date of Patent: December 15, 2015Assignee: QUALCOMM IncorporatedInventors: John Hillan, Anssi Kaleva Haverinen
-
Patent number: 9214989Abstract: Two or more base stations among a plurality of base stations transmit data of the same content at the same timing. A base station notifies a mobile station of two or more base stations which transmit the data of the same content among the plurality of base stations. The mobile station transmits information indicating reception conditions in the mobile station of radio signals from the base stations notified of, to the base station. According to the information indicating the reception conditions, the base station instructs the mobile station to receive the data of the same content from the base stations.Type: GrantFiled: October 10, 2012Date of Patent: December 15, 2015Assignee: FUJITSU LIMITEDInventor: Takayoshi Ode
-
Patent number: 9214990Abstract: A method of communication is provided. The method includes detecting at least a portion of a preamble of a packet transmitted by a first device by sweeping over a plurality of receive directions; receiving and decoding a header of the packet based on a first receive direction to identify that the first device had transmitted the packet; and completing reception of the packet based on a second receive direction. An apparatus for performing the method is also disclosed.Type: GrantFiled: June 12, 2009Date of Patent: December 15, 2015Assignee: QUALCOMM IncorporatedInventors: Ismail Lakkis, Vered Bar Bracha
-
Patent number: 9214991Abstract: A method, device and system for implementing microwave multiple-input multiple-output, relate to the field of wireless communications. The device includes a transmit channel correction module including a transmission energy distributor and a transmission coupler; the transmission energy distributor decomposes, according to a first energy distribution parameter, each channel of transmitted signals among N channels of transmitted signals into channels of transmitted sub-signals, where the number of the channels of transmitted sub-signals is the same as the number of transmit antennas, the number of transmit antennas is N, and N is a natural number greater than 1; and the transmission coupler performs phase processing on each channel of transmitted sub-signals according to a first phase parameter, selects one channel of phase-processed transmitted sub-signals from each of the N channels of transmitted signals, and combines them to obtain N channels of output signals.Type: GrantFiled: February 27, 2014Date of Patent: December 15, 2015Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Meng Cai, Kun Li