Patents Assigned to ST-Ericsson SA
  • Patent number: 9264109
    Abstract: The invention concerns a Near Field Communication method comprising a step (1) of generating, by an antenna of a transmitter, a magnetic field (H), a step (2) of receiving, by an antenna of a tag, power from the generated magnetic field (H), then causing a drop in the generated magnetic field (H), wherein the method further comprises a step (3) of estimating the drop by sensing a voltage swing across said transmitter antenna.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: February 16, 2016
    Assignee: ST-ERICSSON SA
    Inventors: Yoann Bouvet, Kanan Saurabh
  • Patent number: 9264060
    Abstract: A new approach is disclosed concerning offset cancellation methods in analog to digital converters and analog to digital converters implementing the same. Such approach allows to efficiently cancel offset drifts in analog to digital converters.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: February 16, 2016
    Assignee: ST-ERICSSON SA
    Inventors: Pierangelo Confalonieri, Federico Guanziroli, Alberto Minuti
  • Patent number: 9265005
    Abstract: Methods of throttling video streaming downloads in burst transmissions to a mobile device are driven by the network client. By knowing various input parameters such as the media bitrate, the current (average) network link bitrate, transceiver state timeout characteristics (e.g., inactivity timers), and power consumption information for various mobile device operating states, the network client can decide the proportion of each repeating burst interval duration to spend in an idle state. From a control parameter and the other input parameters, it can calculate the amount of media data it then needs to request in each burst transmission. Other calculations further inform this decision, such as the relative average power consumption (as compared to staying at a high activity state continuously).
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: February 16, 2016
    Assignee: ST-Ericsson SA
    Inventors: Ulf Christian Björkengren, Göran Roth
  • Patent number: 9258069
    Abstract: A method of operating a user equipment for measuring non-contiguous carriers comprises: changing a position of a local oscillator to be in the middle of the non-contiguous carriers; measuring the carriers simultaneously; estimating a power level of an interferer in a gap in the non-contiguous carriers which creates image interference; and compensating the measurement dependent on the interferer power level and an image rejection factor.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: February 9, 2016
    Assignee: ST-ERICSSON SA
    Inventors: Stefania Sesia, Pierre Demaj, Martial Gander, Muhammad Kazmi
  • Patent number: 9252705
    Abstract: An oscillator (200, 300, 350) comprises a tank circuit (100), a first transistor (M1c) and a second transistor (M1r), and the second transistor (M1r) occupies an area of silicon that is smaller than an area of silicon occupied by the first transistor (M1c). A switching apparatus (Sw1 . . . Sw14) selects either one of a first oscillator topology and a second oscillator topology, where in the first oscillator topology, the tank circuit (100) is coupled to the first transistor (M1c) in a first feedback configuration to provide feedback around the first transistor (M1c), and in the second oscillator topology, the tank circuit (100) is coupled to the second transistor (M1r) in a second feedback configuration that is different to the first feedback configuration to provide feedback around the second transistor (M1r).
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: February 2, 2016
    Assignee: ST-ERICSSON SA
    Inventors: Emmanuel Chataigner, Sebastien Dedieu
  • Patent number: 9251036
    Abstract: Disclosed herein is a system for monitoring high speed interchip (HSIC) universal serial bus (USB) signals in a device comprising a USB controller configured to output first USB transceiver macro-cell (UTMI+) signals, an HSIC PHY transceiver configured to receive first UTMI+ signals from the USB controller and to convert and transmit received first UTMI+ signals as first HSIC signals, and to receive second HSIC signals and transmit them as second UTMI+ signals to the USB controller, a UTMI+ conversion block configured to receive first and second UTMI+ signals and to transform the received first and second UTMI+ signals to corresponding first and second ULPI signals, and transmit first and second ULPI signals, the first and second ULPI signals being equivalent to the first and second HSIC signals, and a ULPI PHY transceiver configured to receive the first and second ULPI signals and transmit corresponding first and second USB signals.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: February 2, 2016
    Assignee: ST-ERICSSON SA
    Inventors: Morten Christiansen, Jonny Blom
  • Patent number: 9247491
    Abstract: A receiver 10 and method in the receiver for cell search to find an actual base station having a carrier frequency in a radio communications network 1. The receiver detects a first signal representative of a base station 12, 14, 16, 18 by performing slot synchronisation, frame synchronization, cell identification, measurement of a signal quality of the first signal and comparison of the measured signal quality with a first threshold value. When a first signal having a signal quality that is greater than the first threshold value has been detected, the receiver searches for at least one second signal representative of a base station for at least one frequency offset comprised in a set of offsets S3. Further, when one or more second signals are detected, the receiver selects the signal with the highest signal quality, and detects a broadcast radio channel representative of a base station for the selected signal.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: January 26, 2016
    Assignee: ST-ERICSSON SA
    Inventors: Oskar Drugge, Koichi Kojima, Max Larsson, Torgny Palenius, Benny Stenlund
  • Patent number: 9239947
    Abstract: A method for detecting faces in an image having a plurality of picture elements, each having a plurality of color components in a predetermined color space, includes determining an extended range for color component values, in the color space, in which a skin tone area is likely to be detected, defining intervals for the color component values, in the color space, covering at least part of the extended range, and scanning each of the intervals to detect a skin tone area. If a skin tone area is detected, the method includes selecting the intervals in which a skin tone area is detected, defining candidate limited ranges for color component values, in the color space, from the selected intervals, performing face detection on a skin tone area in at least some of the candidate limited ranges, and selecting a chosen candidate limited range based on the number of faces detected.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: January 19, 2016
    Assignee: ST-Ericsson SA
    Inventors: Stéphane Auberger, Arnaud Bourge, Adrien Graton
  • Patent number: 9240919
    Abstract: A polar modulator (200) comprises a modulation generator (10) arranged to generate phase modulation data and amplitude modulation data; and a phase modulation stage (20) arranged to generate a phase modulated, PM, carrier signal and a PM clock signal, wherein the PM carrier signal has a PM carrier signal frequency and the PM clock signal has a PM clock signal frequency, and the PM carrier signal frequency is higher than the PM clock signal frequency, the PM carrier signal and the PM clock signal are phase modulated by the phase modulation data, and the phase modulation stage (20) comprises an adjustable delay stage (50) arranged to adjust a relative delay between the PM carrier signal and the PM clock signal to a target value.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: January 19, 2016
    Assignee: ST-ERICSSON SA
    Inventors: Hendrik Visser, Roeland Heijna
  • Patent number: 9237406
    Abstract: An integrated circuit for processing audio and voice signals in a telephone is disclosed. The integrated circuit comprises an audio output port having a first and a second output terminal for connection to a first and a second input terminal, respectively, of a speaker. The integrated circuit further comprises an audio input port having a first and a second input terminal for connection to a first and a second output terminal of an audio input source. The integrated circuit also comprises at least one audio output path and one audio input path. Moreover, the integrated circuit comprises a test impedance, such as a resistor, (RT) for measuring an electrical impedance of the speaker.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: January 12, 2016
    Assignee: ST-ERICSSON SA
    Inventors: Federico Guanziroli, Sergio Pernici, Robert Nilsson, Jan R. E. Thimansson
  • Publication number: 20150377937
    Abstract: A power consumption measurement method for operating an electronic component during an interval of time includes: logging power states that the component adopts during the interval, interrogating the log to determine the amount of time that the component spent in each power state during interval, and multiplying the rated power consumption for each state by the amount of time spent in each respective state. The power consumptions for each of the states are summed to determine a total power consumption of the component during the interval. Logging the power states may be achieved by counting command line instructions of different types, thus identify the beginning and end of each power state, during the interval. The method may be used to measure and/or benchmark the actual power consumption of a DDR RAM module. An apparatus for carrying out the method is also disclosed.
    Type: Application
    Filed: February 18, 2014
    Publication date: December 31, 2015
    Applicant: ST-Ericsson SA
    Inventors: Nicolas LAFARGUE, Thomas ALOFS
  • Patent number: 9225566
    Abstract: The present subject matter discloses a system and a method for estimating a frequency offset in communication devices. In one embodiment, the method of estimating a frequency offset in a communication device comprises generating a reconstructed signal based at least in part on a channel impulse response (CIR) corresponding to a received signal. Further, a normalization matrix is determined for the reconstructed signal. Thereafter, based at least in part on the normalization matrix and the reconstructed signal, the frequency offset is estimated such that the frequency offset corresponds to a maximum normalized-correlation between the reconstructed signal and the received signal.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: December 29, 2015
    Assignee: ST-ERICSSON SA
    Inventors: Leela Srikar Muppirisetty, Aravindh Krishnamoorthy
  • Patent number: 9225297
    Abstract: A protection module (4) for a RF-amplifier (2) is efficient against overvoltage due to load impedance mismatch when said RF-amplifier is connected to a load RF-element (3). The protection module comprises a branch with at least one diode-like operating component (D1, D2, . . . , Dn) and a resistor (R2) which starts conducting when a RF-signal on a transmission link (6) between the RF-amplifier and the load RF-element is higher than a threshold set by the diode-like operating component. Such protection may be implemented in MOS technology only.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: December 29, 2015
    Assignee: ST-ERICSSON SA
    Inventor: Vincent Knopik
  • Patent number: 9225469
    Abstract: A method for determining a length of a message block of k bits from a length candidate set, comprising steps of: —Selecting (401) a length candidate (N) among the set; —Decoding (402) a received frame to form a decoded sequence that includes a message of a length equal to the length candidate (N), by a Viterbi decoder; —Calculating (402) a Viterbi variable (S(N)) for this candidate (N), —Comparing (403) the Viterbi variable with a threshold (?), —Repeating the selecting (401), decoding (402) and calculating (402) steps if said Viterbi variable (S(N)) is greater than the threshold (?) and if there exists an unselected length candidate among the set; —If the Viterbi variable is greater than a best value (Sbest), updating this best value to the Viterbi variable and updating a best length (Nend) to this candidate; —Wherein the threshold (?) is initially set to a value determined according to the conditions of reception of the receiver.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: December 29, 2015
    Assignee: ST-ERICSSON SA
    Inventor: Eric Alliot
  • Patent number: 9226041
    Abstract: Imposing one or more usage constraints on digital content involves communicating a digital content data item to a digital content receiver system. The digital content data item includes the digital content and a usage constraint data item different from a digital license data item, or a reference to the usage constraint data item, the use case item being indicative of the one or more usage constraints.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: December 29, 2015
    Assignee: ST-ERICSSON SA
    Inventors: Ulf Björkengren, Frank Hartung, Daniel Catrein, Yi Cheng
  • Patent number: 9220083
    Abstract: A method is disclosed for paging of a terminal having a first subscriber identity (IMSI1) attachable to a first mobile communication network (101) and a second subscriber identity (IMSI2) attachable to a second mobile communication network (201). The method is performed in a controller node (213; 600) of the second mobile communication network and involves registering (310, 410) the terminal's second subscriber identity (IMSI2) as attached to the second mobile communication network (201), followed by registering (320, 420) an auxiliary paging address (422) for the terminal's second subscriber identity. Then, a need to page the terminal's second subscriber identity is determined (330), and the terminal's second subscriber identity is paged (340). The paging involves sending (240) an auxiliary paging message (442) to the registered auxiliary paging address, and the auxiliary paging message is adapted for delivery to the terminal's first subscriber identity (IMSI1).
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: December 22, 2015
    Assignee: ST-Ericsson SA
    Inventor: Vincent Nikkelen
  • Patent number: 9219491
    Abstract: An electronic analog-to-digital conversion device includes an analog-to-digital conversion block having a first input for receiving a voltage signal to be converted based on a reference voltage signal provided to a second input, and an input block connected to the first input of the analog-to-digital conversion block. The input block receives an input signal at a first resistive network connected to a second resistive network, which is then connected to a reference potential. The input block also includes an active network connected between an output of the first resistive network and the first input of the analog-to-digital conversion block. The active network has a first input terminal directly connected to the second input of the analog-to-digital conversion block for receiving the same reference voltage signal so that the input voltage signal received at a second input of the active network is processed based on the reference voltage signal.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: December 22, 2015
    Assignee: ST-ERICSSON SA
    Inventors: Alberto Minuti, Francesca Girardi, Germano Nicollini, Marco Zamprogno
  • Patent number: 9215753
    Abstract: There is described a multiple subscriber identity arrangement having a modem capable of receiving messages related to either one of at least two subscriber identities, but not simultaneously. The arrangement further comprises a control unit configured to, when the modem performs communication activity associated with a first subscriber identity: determine whether gaps not allocated for the communication activity associated with the first subscriber identity coincide with paging occasions associated with a second subscriber identity; and, if at least one gap not allocated for the communication activity associated with the first subscriber identity coincides with at least one paging occasion associated with the second subscriber identity, cause the modem to switch to the second subscriber identity to read one paging message on a paging channel associated with the second subscriber identity.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: December 15, 2015
    Assignee: ST-ERICSSON SA
    Inventors: Nicolas Josso, Erwan Preteseille, Sylviane Roullier
  • Patent number: 9215294
    Abstract: A method for managing communications between a server equipment and a client equipment, wherein the server equipment provides to the client equipment computer resources represented in the server equipment according to at least one file system, and upon receipt of a first request of the client equipment for access to a first resource dedicated to provide identifiers, the server equipment performs the following steps: —allocating a memory space for storing a data structure representing a file of the server, —determining an identifier based on an address of the allocated memory space, and—transmitting the determined identifier to the client equipment for use in later requests for accessing second resources of the server.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: December 15, 2015
    Assignee: ST-ERICSSON SA
    Inventor: Arnaud Troel
  • Patent number: 9207738
    Abstract: A data processing device has a processor (10) operable at selectable ones of a plurality of performance levels. The processor generates a workload data vector indicating a workload of the processor as a function of time. A memory stores a set of reference workload vectors. A pattern matcher (18) detects whether there is a matching reference workload data vector. A performance level controller (19) selects the performance level of the processor based on control information that is stored in combination with the matching workload data vector.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: December 8, 2015
    Assignee: ST-Ericsson SA
    Inventor: Pieter Struik