Patents Assigned to Sierra Wireless
  • Patent number: 9635532
    Abstract: A method is proposed for switching a radiocommunications terminal from a first radiocommunications network, with which the terminal is synchronized and registered, to a second radiocommunications network. The terminal has first and second connection profiles associated respectively with the first and second radiocommunications networks. According to the method, the terminal performs the following steps: for the second connection profile, a preliminary and at least partial synchronization of the terminal with the second radiocommunications network; and upon a switching request: a complete synchronization, based on said preliminary and at least partial synchronization, of the terminal with the second radiocommunications network; and registration of the terminal with the second radiocommunications network.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: April 25, 2017
    Assignee: SIERRA WIRELESS
    Inventors: Ludovic Haessler, Christophe Flechelle
  • Patent number: 9148746
    Abstract: The present invention concerns a method for controlling access by an equipment for a network of the machine-to-machine type to the resources of a cellular telephony network, said equipment comprising means for wireless communication with another equipment for a machine-to-machine network. The method is characterised in that it comprises the following steps: defining at least one so-called activity time range and at least one so-called inactivity time range, enabling the equipment to access the resources of the cellular telephony network during each activity time range, and preventing the equipment from accessing the resources of the cellular telephony network during each inactivity time range.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: September 29, 2015
    Assignee: SIERRA WIRELESS
    Inventors: Djelal Raouf, Bruno Corlay
  • Patent number: 9113409
    Abstract: A method and apparatus are provided for synchronizing a terminal with a frequency from an ordered initial sequence of frequencies of a radio-communications network. An available power spectrum associates to each frequency of the initial sequence a power value representing the power with which the frequency is received by the terminal. At least one first range of consecutive frequencies is determined within the initial sequence, having a power variation below a first predetermined threshold. The terminal attempts at least one first synchronization with a frequency of the first range. If each first synchronization fails, the terminal obtains a modified sequence by modifying the position of the frequency or frequencies of the at least one first range of the initial sequence or by eliminating the at least one first range. The terminal then attempts a second synchronization with at least one of the frequencies of the modified sequence.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: August 18, 2015
    Assignee: SIERRA WIRELESS
    Inventors: Ludovic Haessler, Christophe Fléchelle
  • Patent number: 8915746
    Abstract: A connector component for operably coupling a removable integrated circuit component such as a Micro SIM™, to a host PCB is provided. The connector component is configured to fit within an aperture formed within the host PCB and houses the removable integrated circuit component within an internal cavity. The connector component includes a coupling portion configured for coupling to the top face of the host PCB, and a port for insertion and removal of the removable integrated circuit component which is exposed within the bottom face of the host PCB. The connector component may be made flush with the bottom face of the host PCB, and the host PCB may optionally be populated on one side only.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 23, 2014
    Assignee: Sierra Wireless
    Inventors: Bruce Richard John Samuels, Edwin Sy Liu
  • Patent number: 8902818
    Abstract: The present invention concerns the field of communication between a server and target devices not connected to a communications network. The context of use is typically the management of a fleet of devices by an operator. A generic mobile application is described, for relaying messages between these non-connected devices and a management server. This application is intended to operate on a mobile terminal hold by a person moving close to the equipment. The terminal and the equipment are provided with point to point communication means. The terminal communicates with the management server when it is located within range of a communication network. The application makes it possible to store and resend the messages between the moment when the terminal is connected to the communications network and the moment when the terminal is connected to the equipment.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: December 2, 2014
    Assignee: Sierra Wireless
    Inventors: Nhon Chu, Djelal Raouf
  • Patent number: 8838039
    Abstract: A device is provided for controlling operation of a radiocommunication electronic module using a control signal. The device includes a circuit for switching the control signal between a high logic state and a low logic state or vice versa, and a circuit for controlling the switching circuit. The control circuit generates a control signal. The module includes an activation input receiving the control signal. The control circuit includes: a first input receiving a first signal representative of a supply voltage; and a second input receiving a second signal from the module.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: September 16, 2014
    Assignee: Sierra Wireless
    Inventors: Frédéric Pauly, Chieng Kieng Du
  • Publication number: 20140134968
    Abstract: The present invention concerns a method for filtering incoming calls intended to be implemented by a device in a vehicle, said device previously having sent an emergency call to an emergency call center that manages the emergency calls and said device being in a state awaiting any incoming calls sent by callers. The method is characterized in that it comprises the following steps: identifying the caller of each new incoming call, if the identified caller is an emergency call center, then a communication between the device and an operator in the emergency call center is established, and the device returns to the state of awaiting any incoming calls at the end of the communication.
    Type: Application
    Filed: April 2, 2013
    Publication date: May 15, 2014
    Applicant: Sierra Wireless
    Inventor: Sierra Wireless
  • Publication number: 20140087743
    Abstract: The present invention concerns a method for controlling access by an equipment for a network of the machine-to-machine type to the resources of a cellular telephony network, said equipment comprising means for wireless communication with another equipment for a machine-to-machine network. The method is characterised in that it comprises the following steps: defining at least one so-called activity time range and at least one so-called inactivity time range, enabling the equipment to access the resources of the cellular telephony network during each activity time range, and preventing the equipment from accessing the resources of the cellular telephony network during each inactivity time range.
    Type: Application
    Filed: February 28, 2013
    Publication date: March 27, 2014
    Applicant: SIERRA WIRELESS
    Inventor: SIERRA WIRELESS
  • Patent number: 8650412
    Abstract: A method for managing execution by a processor of a software architecture included in a radiocommunication circuit is provided. The software architecture includes a radiocommunication software stack and at least one client application. The has the following steps, for a given frequency of the processor: a) obtaining a first computing power associated with the stack; b) obtaining a second computing power associated with the at least one client application; c) computing the sum of the first and second computing powers; d) comparing the sum with a predetermined threshold; e) detecting, based on the result of the comparison step, that the second computing power is insufficient for the processor to execute the at least one client application; and f) in the case of positive detection, restraining at least one functionality of the stack.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: February 11, 2014
    Assignee: Sierra Wireless
    Inventors: Erwan Girard, Jacques Montes
  • Patent number: 8611376
    Abstract: A method and apparatus are provided for the transmission of radio data between at least two transmitters and one receiver, said method employing at least one multi-carrier data transmission signal. The aforementioned multi-carrier signal is formed by a temporal succession of symbols comprising: (i) informative data elements, and (ii) reference elements known as pilots which are distributed within the informative data elements according to a pre-determined pattern. Moreover, the value of said pilots at transmission is known to the receiver. At least two transmitters use different pilot patterns such that, at a give instant and a give frequency, only one pilot can be received (possibly with other informative data elements) by the receiver from other transmitters.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: December 17, 2013
    Assignee: Sierra Wireless
    Inventor: Nicolas Ibrahim
  • Patent number: 8565439
    Abstract: A method is provided for detecting scrambling of a radiocommunication network. The method is applied by a radiocommunication circuit capable of being connected to the network by being synchronized on a radiocommunication channel. The method includes a final detection phase, having the following steps: detection of verification of the following final condition: there are N radiocommunication channels on which the radiocommunication circuit cannot be synchronized despite detection of a power level normally sufficient for being synchronized, where N>2; and if the final condition is verified, generation of a final scrambling signal with a probability of scrambling equal to 100%. The method also includes at least one intermediate detection phase, having the following steps: detection of verification of at least one intermediate condition; and if the at least one intermediate condition is verified, generation of an intermediate scrambling signal with a probability of scrambling of less than 100%.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: October 22, 2013
    Assignee: Sierra Wireless
    Inventors: Erwan Girard, Christophe Flechelle, Thierry Lys
  • Publication number: 20130272195
    Abstract: The present invention concerns the field of communication between a server and target devices not connected to a communications network. The context of use is typically the management of a fleet of devices by an operator. A generic mobile application is described, for relaying messages between these non-connected devices and a management server. This application is intended to operate on a mobile terminal hold by a person moving close to the equipment. The terminal and the equipment are provided with point to point communication means. The terminal communicates with the management server when it is located within range of a communication network. The application makes it possible to store and resend the messages between the moment when the terminal is connected to the communications network and the moment when the terminal is connected to the equipment.
    Type: Application
    Filed: October 1, 2012
    Publication date: October 17, 2013
    Applicant: SIERRA WIRELESS
    Inventor: SIERRA WIRELESS
  • Patent number: 8422234
    Abstract: A device is provided for electromagnetic shielding an electronic component and for dissipating heat generated by the component. The component includes a package designed to be fastened to a first face of a printed circuit, called a rear face, by a heat sink, the heat sink passing through the rear face of the printed circuit and emerging on a second face of the printed circuit, called a front face. The device includes a metal structure mounted on the front face of the printed circuit and defining an electromagnetic shielding enclosure. The metal structure having a first heat discharge opening lying approximately opposite the heat sink. The device further includes at least one thermal connector, a first end of which is fastened to the metal structure and a second end of which is fastened to the heat sink and/or to the front face of the printed circuit near the heat sink.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: April 16, 2013
    Assignee: Sierra Wireless
    Inventors: Jacques Goriaux, Alain Bironneau, Jean-Pierre Mauclerc
  • Patent number: 8301170
    Abstract: A method is provided for locating a radiocommunication device in a radiocommunication network comprising a plurality of distinct geographical cells. The device comprises a radiocommunication module allowing reception of radiocommunication carriers. Each carrier is associated with a cell of the network and is defined by a frequency and a cell identifier. The module performs the following steps: obtaining initialization information comprising a predetermined list of N1 reference carriers; selecting N carrier(s) from among the N1 reference carriers; for each carrier selected, determining the cell identifier, termed the current cell identifier, associated with the selected carrier, on the basis of system information messages conveyed by the carrier; and obtaining an item of information regarding the location of the radiocommunication device, on the basis of the current cell identifier or identifiers.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: October 30, 2012
    Assignee: Sierra Wireless
    Inventors: Thierry Didi, Christophe Flechelle
  • Patent number: 8295795
    Abstract: A method is provided for obtaining a calibration frequency for calibrating a transmission chain that can transmit information signals on a frequency band comprising a plurality of channels. The chain includes an amplifier that can be configured according to at least one gain configuration. The method includes: obtaining an output power value of the amplifier; obtaining a frequency dispersion, based on the power value; detecting whether a constraint linked to said frequency dispersion is satisfied; and if the constraint is not satisfied, then obtaining a current frequency subband and a calibration frequency for said current frequency subband.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: October 23, 2012
    Assignee: Sierra Wireless
    Inventors: Jacques Goriaux, Alain Bironneau, François Raymond
  • Patent number: 8289847
    Abstract: A method of transmitting voice frames, via a transmission channel reserved for voice data, by a transmitting terminal generating voice frames using a voice signal is proposed. Such a method includes steps of: obtaining non-voice data; selecting voice data from the voice frame according to configuration data obtained beforehand relative to the transmission of non-voice data on the reserved channel; constructing of a degraded voice frame by replacing selected voice data with non-voice data; transmitting the degraded voice frame via the reserved channel to a receiving terminal. On the receiving terminal side, a method of managing voice frames coming from the transmitting terminal is proposed including the steps of: detecting a non-voice data header included in the voice frame; extracting, from the voice frame, of non-voice data, according to configuration data read in the header; transmitting of extracted non-voice data to a processor of non-voice data.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: October 16, 2012
    Assignee: Sierra Wireless
    Inventor: Florian Lefeuvre
  • Publication number: 20120170754
    Abstract: A method is provided for detecting scrambling of a radiocommunication network. The method is applied by a radiocommunication circuit capable of being connected to the network by being synchronized on a radiocommunication channel. The method includes a final detection phase, having the following steps: detection of verification of the following final condition: there are N radiocommunication channels on which the radiocommunication circuit cannot be synchronized despite detection of a power level normally sufficient for being synchronized, where N>2; and if the final condition is verified, generation of a final scrambling signal with a probability of scrambling equal to 100%. The method also includes at least one intermediate detection phase, having the following steps: detection of verification of at least one intermediate condition; and if the at least one intermediate condition is verified, generation of an intermediate scrambling signal with a probability of scrambling of less than 100%.
    Type: Application
    Filed: July 11, 2008
    Publication date: July 5, 2012
    Applicant: SIERRA WIRELESS
    Inventors: Erwan Girard, Christophe Flechelle, Thierry Lys
  • Patent number: 8195110
    Abstract: A method and apparatus are provided for calibrating an information-signal transmission line that includes elements for generating a control signal and transmitting information signals controlled by the control signals, and an amplifier of the information signals. The amplifier can be configured according to at least a first gain configuration associated with a first gain value, and a second gain configuration associated with a second gain value. The method includes obtaining, for each of the first and second gain configurations, first and second sets of initial values of the control signal, that correspond to first and second sets of measured power that overlap, and selecting, for each power-recovery setpoint value to which corresponds a first measured-power value of the first set and a second measured-power value of the second set, from the first and second calibrated values of the control signal, the calibrated value that meets a predetermined criterion.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: June 5, 2012
    Assignee: Sierra Wireless
    Inventors: François Raymond, Jacques Goriaux, Alain Bironneau
  • Publication number: 20120111606
    Abstract: An electronic circuit includes a transfer face and a plurality of contact pads. The pads include a first set of pads of a first type in a central zone at the center of the transfer face; second sets of pads of the first type on an end portion of a diagonal of the transfer face; third sets of pads of a second type on a median portion of a diagonal of the transfer face; fourth sets of pads of a third type in a lateral zone demarcated by the central zone and two semi-diagonals joined by one side of the transfer face. Each pad of the first type has a greater surface area on the transfer face than each pad of the second type, and each pad of the second type has a greater surface area than each pad of the third type.
    Type: Application
    Filed: November 10, 2011
    Publication date: May 10, 2012
    Applicant: SIERRA WIRELESS
    Inventor: Jean-Pierre Mauclerc
  • Publication number: 20120042191
    Abstract: A method for managing execution by a processor of a software architecture included in a radiocommunication circuit is provided. The software architecture includes a radiocommunication software stack and at least one client application. The has the following steps, for a given frequency of the processor: a) obtaining a first computing power associated with the stack; b) obtaining a second computing power associated with the at least one client application; c) computing the sum of the first and second computing powers; d) comparing the sum with a predetermined threshold; e) detecting, based on the result of the comparison step, that the second computing power is insufficient for the processor to execute the at least one client application; and f) in the case of positive detection, restraining at least one functionality of the stack.
    Type: Application
    Filed: July 16, 2008
    Publication date: February 16, 2012
    Applicant: SIERRA WIRELESS
    Inventors: Erwan Girard, Jacques Montes