With Wireless Synchronization Patents (Class 368/47)
  • Patent number: 10341213
    Abstract: An object of the present invention is to generate a clock also before reception of a packet in a reception device. A reception device has: a storage unit storing a true time-stamp included in a received packet including audio data and the true time-stamp expressing reproduction time of the audio data; a timer counting time; a dummy time-stamp generation unit generating a dummy time-stamp as a false time-stamp; a comparator comparing time based on the true time-stamp stored in the storage unit or the dummy time-stamp and time indicated by the timer; and a clock generation unit generating a clock in accordance with a comparison result of the comparator. The comparator performs comparison using the dummy time-stamp until a predetermined condition is satisfied and, after the predetermined condition is satisfied, performs comparison using the true time-stamp.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: July 2, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Hirofumi Shigehisa, Teruhisa Takeda, Akihito Sakai, Hirohisa Furukawa
  • Patent number: 10320635
    Abstract: System and techniques are described which provide a method for time correlated monitoring of nodes in a network. A statistics request message is sent from a centralized control point to a node in a network having a plurality of nodes, wherein the statistics request message contains a centralized control point time stamp tn of when the message was sent. The statistics request message is received at the node which records a node timestamp ta when the message was received in the node. Node statistics are converted to system time at the centralized control point according to a first delta between tn and ta to generate adjusted node statistics. A second delta is determined at the centralized control point which is applied to the adjusted node statistics to provide consistent system time information for feedback or presentation through a network attached user interface.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: June 11, 2019
    Assignee: Talari Networks Incorported
    Inventors: Todd Martin, Adam Phillip Schultz
  • Patent number: 10310091
    Abstract: A system and method for providing time stamps protected from GPS timing signal attacks. A GPS receiver receives a GPS time data, and a local clock provides local time data. A controller initiates the local clock with the GPS time data. It continuously monitors the GPS time data by calculating any difference error between current GPS time data and local time data, and determining whether the error exceeds a threshold value. If the error does not exceed the threshold value, the GPS time data is used to discipline the local clock data and the disciplined output is used for the time stamp. If the error exceeds the threshold value, the local time data is used for the time stamp.
    Type: Grant
    Filed: January 31, 2015
    Date of Patent: June 4, 2019
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Gerardo Trevino, Ben A. Abbott
  • Patent number: 10281882
    Abstract: An electronic timepiece has a reception device; an input device; a detection device that detects a start reception operation of the input device and outputs a start reception signal; a manual reception controller that operates the receiver and executes a reception process if the start reception signal output from the detection device is received; an automatic reception controller that determines if an automatic reception condition is met, and operates the reception device to execute the reception process if the automatic reception condition is met; and a reception setter that enables or disables operation of the automatic reception controller. The reception setter enables operation of the automatic reception controller if the start reception signal output from the detection device is received if operation of the automatic reception controller is disabled.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: May 7, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Katsuyuki Honda
  • Patent number: 10197680
    Abstract: A method for use with a Global Navigation Satellite System (GNSS) receiver is provided. The method includes obtaining a first system time from a satellite of a first satellite navigation system, obtaining a second system time from a satellite of a second satellite navigation system, calculating a difference between the first system time and the second system time to obtain a number of leap seconds between Coordinated Universal Time (UTC) and the second satellite system.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: February 5, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Gary Lennen
  • Patent number: 10114341
    Abstract: A method of setting inertia of and/or poizing a timepiece sprung balance assembly including: manufacturing a balance and a balance spring irreversibly assembled to each other; fixing an outer coil of the balance spring in position in a tamperproof manner to a balance spring stud which is immobilized in a tamperproof manner by irreversible attachment to a balance cock; determining a peripheral surface of the balance, every point of which is remote from the balance spring by a first predefined distance; performing a re-machining operation only on the peripheral area.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: October 30, 2018
    Assignee: Nivarox-FAR S.A.
    Inventors: Thierry Conus, Marco Verardo, Christian Charbon
  • Patent number: 10042329
    Abstract: An electronic timepiece enables displaying multiple times and easily correcting the displayed time. An electronic device has a correction mode setting unit that sets a first time correction mode for adjusting a first time, or a second time correction mode for adjusting a second time, in response to a correction mode setting operation; and a display control unit that moves an indicator hand to a first indicated position indicating that the hands to be corrected are first hands when the first time correction mode is set, and moves the indicator hand to the second indicated position indicating that the hands to be corrected are second hands when the second time correction mode is set.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: August 7, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Toshikazu Akiyama
  • Patent number: 10009116
    Abstract: Either the electronic timepiece or the communication device of a communication system has a first communicator, and the other has a second communicator. The first communicator has a first transmitter including a transmission coil and a drive circuit configured to drive the transmission coil, and is configured to transmit signals by communicating through electromagnetic coupling; and an first receiver including a photodetector and a detection circuit that detects the output value of the photodetector, and configured to receive signals by optical communication. The second communicator has an second transmitter including a light-emitting device and a drive circuit that drives the light-emitting device, and configured to transmit signals by optical communication; and a second receiver including a reception coil and a detection circuit that detects the output value of the reception coil, and configured to receive signals by communicating through electromagnetic coupling.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: June 26, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Norimitsu Baba, Hirokazu Nishijima
  • Patent number: 10001758
    Abstract: A time information receiver that receives a standard radio wave containing a time code and analyzes the time code based on a demodulated signal of the standard radio wave includes a falling edge cycle measurement part that measures a falling edge cycle of the demodulated signal over a measurement period set in advance and counts an occurrence in which the falling edge cycle is determined to coincide with any of 400 ms, 700 ms, 1300 ms, and 1600 ms, a low level width measurement part that measures a low level width over the measurement period whenever the falling edge cycle of the demodulated signal occurs and counts an occurrence in which the measured low level width is greater than or equal to a predetermined threshold greater than 300 ms but smaller than 500 ms.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: June 19, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Hiroaki Yoshida
  • Patent number: 9977406
    Abstract: A timepiece includes a case that is made of a conductive material, a bezel that is made of a nonconductive material, a patch antenna that is disposed inside the case and at the back side of the dial, and a bezel that is made of a ceramic.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: May 22, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Teruhiko Fujisawa
  • Patent number: 9952561
    Abstract: A radio timepiece, including: a satellite radio wave receiver; a ground wave receiver; a memory; and a controller, wherein the controller performs area determination operation of determining whether a current position is located within a geographical range where the ground wave receiver is capable of acquiring notice information regarding implementation/non-implementation of the leap second adjustment, when the controller determines that the current position is located within the geographical range, the controller controls the ground wave receiver to acquire the notice information, the controller determines, with the notice information, whether the leap second adjustment is scheduled to be implemented at an implementation candidate timing of the leap second adjustment, and when the controller determines that the leap second adjustment is scheduled to be implemented, the controller changes the leap second correction information at or after the implementation candidate timing.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: April 24, 2018
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Tatsuya Sekitsuka, Takeshi Matsue
  • Patent number: 9897979
    Abstract: An electronic timepiece having a satellite signal receiver; a standard time signal receiver; a storage battery; a voltage detection circuit that detects the remaining capacity of the storage battery; a satellite signal reception controller; and a standard time signal reception controller. The satellite signal reception controller operates the satellite signal receiver when the battery capacity detected by the voltage detection circuit is greater than or equal to a first threshold and the automatic reception condition is met. The standard time signal reception controller operates the standard time signal receiver when the automatic reception condition for the standard time signal is met whether the reserve power is greater than or equal to the first threshold and when the reserve power is less than the first threshold.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 20, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Teruhiko Fujisawa
  • Patent number: 9869977
    Abstract: A radio-controlled timepiece is shown including the following. A timekeeping unit keeps date and time. A date/time obtaining unit obtains date/time information from outside to correct the date and time of the timekeeping unit. A preliminary notice information obtaining unit obtains from outside preliminary notice information regarding whether leap second adjustment in which a leap second is inserted or deleted is executed. A date/time obtaining necessity setting unit sets whether the date/time information needs to be obtained based on history of obtaining the date/time information. The date/time obtaining necessity setting unit sets that the date/time information needs to be obtained when the preliminary notice information is not obtained by the adjustment possible date/time or the leap second adjustment is executed at the adjustment possible date/time, and does not change setting when the preliminary notice information is obtained and the leap second adjustment is not executed.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: January 16, 2018
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Kosuke Hasegawa
  • Patent number: 9854369
    Abstract: The present subject matter relates to the wireless stereo reception of first and second audio information by wireless hearing communication devices. One type of device which may employ the present subject matter is a hearing assistance device, such as a hearing aid. Various forms and protocols of signal transmission are employed in varying embodiments. The present subject matter includes various communication modes such as eavesdropping modes and relaying modes.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: December 26, 2017
    Assignee: Starkey Laboratories, Inc.
    Inventor: Jeffrey Paul Solum
  • Patent number: 9846120
    Abstract: A light measurement apparatus includes a master laser, a slave laser, an illumination light pulse, and a signal-under-measurement generator. The master laser generates as an output a master laser light pulse, and the slave laser generates as an output a slave laser light pulse having a repetition frequency or a phase different from that of the master laser light pulse. The illumination light pulse generator receives the master laser light pulse and generates as an output an illumination light pulse, and the signal-under-measurement generator, at a point in time when receiving a light pulse under measurement obtained by illuminating the object under measurement with the illumination light pulse and further the slave laser light pulse, generates as an output a signal under measurement according to a power of the light pulse under measurement. The apparatus corrects an error in a measurement of the signal under measurement.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: December 19, 2017
    Assignee: ADVANTEST CORPORATION
    Inventors: Masaichi Hashimoto, Akiyoshi Irisawa
  • Patent number: 9766595
    Abstract: An electronic timepiece includes a measured time display region, a reception state display region, and one indicating hand that indicates the measured time display region and the reception state display region. In addition, a scale indicating measured time measured by using a time measurement function is disposed in the measured time display region, and a scale indicating a reception state of a satellite signal is disposed in the reception state display region. The one indicating hand indicates the scale in the measured time display region when the time measurement function is executed, and indicates the scale in the reception state display region when the reception function is executed.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: September 19, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Nobuhiko Nakanishi
  • Patent number: 9720384
    Abstract: A radio signal receiver includes a GPS receiver circuit, an environment detection circuit (charging state detection circuit and voltage detection circuit) that detects is in an environment suited to the radio signal receiver receiving satellite signals, and a control circuit. The control circuit has a first reception control unit that operates the GPS receiver circuit when the radio signal receiver is determined to be in an environment suited to receiving satellite signals based on the result output by the environment detection circuit, a second reception control unit that operates the GPS receiver circuit at a scheduled reception time, and a switching unit that switches operation between the first reception control unit and second reception control unit.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: August 1, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Katsuyuki Honda
  • Patent number: 9709961
    Abstract: The fixed-time reception control section carries out the reception process at first time to acquire first reception time data and compares the acquired first reception time data with the internal time. When a difference in time between the first reception time data and the internal time is greater than or equal to a first threshold, the fixed-time reception control section carries out the reception process at second time different from the first time to acquire second reception time data. The time correction section compares the acquired second reception time data with the internal time and corrects the internal time based on the second reception time data when a difference in time between the second reception time data and the internal time is smaller than a second threshold.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: July 18, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Teruhiko Fujisawa
  • Patent number: 9709962
    Abstract: A time correction system includes a timepiece, and an electronic device that corrects the time of the timepiece. The electronic device includes a display unit, a time data acquisition unit, a control unit that causes the display unit to display an instruction time of the electronic timepiece, based on the current time, and that calculates a time correction amount from a difference between the current time and the instruction time, and a light source that transmits the time correction amount to the electronic timepiece. The electronic timepiece includes an input unit that receives an operation input for correcting the time displayed by a display unit, a solar cell that receives the time correction amount from the electronic device, and a control circuit that corrects the time displayed by an indicating hand of the display unit, based on the time correction amount.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: July 18, 2017
    Assignee: SEIKO INSTRUMENTS INC.
    Inventors: Kenji Ogasawara, Akira Takakura, Kazuhiro Koyama, Tamotsu Maesawa
  • Patent number: 9696689
    Abstract: An electronic timepiece including: a clocking unit which counts current date and time; a daylight saving time application unit which applies daylight saving time information corresponding to positional information to the date and time counted by the clocking unit; a radio wave reception unit which receives radio waves including daylight saving time implementation information of a predetermined area; a daylight saving time information acquisition unit which acquires the daylight saving time implementation information from the received radio waves; a storage unit in which a daylight saving time implementation rule of each area in the world is stored in advance; and an information selection unit which selects, as the daylight saving time information, one of the daylight saving time implementation information and the daylight saving time implementation rule corresponding to a current position on the basis of the current position and the daylight saving time implementation information.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: July 4, 2017
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Kosuke Hasegawa
  • Patent number: 9673971
    Abstract: An automatic calibration of a clock of a wireless portable part with respect to a clock of a fixed part in a field environment. The calibration performed in the field environment negates the need to calibrate the clock during manufacture and negates the need for an initial field recalibration because of temperature differences between manufacture and the field. In performing the calibration the frequency of the clock of the portable part is varied until the portable part is synchronous with the fixed part to with in a range of timing bits. The portable part is declared calibrated after remaining calibrated for a defined number of data frames.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: June 6, 2017
    Assignee: Dialog Semiconductor B.V.
    Inventors: Wik Roovers, Steven Leussink
  • Patent number: 9654985
    Abstract: A wireless communication terminal including a controller coupled to a transceiver wherein the controller is configured to determine a synchronization based on a mapping of channel state information to decoder error rate corresponding to a hypothetical control code word, to attempt to decode a control codeword in a received signal, and to conclude that an out of synchronization event has not occurred if the control codeword is decoded successfully regardless of an indication of the mapping.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: May 16, 2017
    Assignee: Google Technology Holdings LLC
    Inventors: Sandeep H. Krishnamurthy, Ravi Kuchibhotla
  • Patent number: 9634824
    Abstract: A method and apparatus of providing a configurable computer system capable of being modeled are disclosed. The system, in one embodiment, includes a configurable component and a clock distributor. The configurable component includes multiple programmable devices arranged in a predefined configuration. The predefined configuration, for example, is a cubical shape having multiple neighboring nodes. The configurable component is capable of being modeled in accordance with policies from a system program for data transmission. The clock distributor further includes a first clock element, which provides long-term accuracy, and a second clock element, which provides short-term accuracy.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: April 25, 2017
    Inventor: Robert Welland
  • Patent number: 9582399
    Abstract: In a service emulation method, a transaction library storing a plurality of messages communicated between a system under test and a target system upon which the system under test depends is accessed responsive to receiving a request from the system under test. One of the messages stored in the transaction library is identified as corresponding to the received request based on different weightings assigned to respective sections of the messages, and a response to the received request is generated using the one of the messages that was identified. Related systems and computer program products are also discussed.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: February 28, 2017
    Assignee: CA, Inc.
    Inventors: Steven Cornelis Versteeg, John Sinclair Bird, Nathan Allin Hastings, Miao Du, Jean-David Dahan
  • Patent number: 9529339
    Abstract: A radio receiver receives transmitted radio waves from positioning satellites, and includes: a signal amplification unit configured to amplify a received signal; an acquisition unit configured to acquire a satellite signal from the amplified signal; and a control unit configured to obtain predetermined information from the acquired satellite signal, determine a reception condition of transmitted radio waves based on the processing condition of at least one of the obtainment and the acquisition unit, and performs operation setting of a gain of the signal amplification unit according to the determined reception condition, wherein the control unit performs the operation setting so that the gain set in the operation setting when the reception condition is determined to be a first reception condition is smaller than the gain set in the operation setting when the reception condition is determined to be a second reception condition inferior to the first reception condition.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: December 27, 2016
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Takeshi Matsue
  • Patent number: 9523963
    Abstract: An electronic timepiece has a time display unit including a dial made from a non-conductive material, and hands; and a movement that drives the hands. The movement includes a circuit board, a planar antenna attached to the circuit board, a stepper motor that drives the hands, and a battery. The planar antenna, the stepper motor, and the battery are disposed to positions overlapping the time display unit in plan view, and not overlapping each other in plan view.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: December 20, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Teruhiko Fujisawa, Shuichi Tamura
  • Patent number: 9513605
    Abstract: A timepiece includes a case; a movement that is housed in the case and has multiple motors that drive respective staffs disposed at different locations; a patch antenna that is disposed inside the case and at the back side of the dial; and a battery that supplies power to the motors and is disposed at a position in the case that does not overlap the patch antenna in plan view. The position at which the battery is disposed overlaps at least one of the motors in plan view.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: December 6, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Teruhiko Fujisawa
  • Patent number: 9501045
    Abstract: A radio wave receiver, that receives satellite waves, includes a GPS reception processing unit configured to receive signals from a plurality of positioning satellites, acquire data necessary for positioning from the received signals, calculate a current location of the radio wave receiver, save a failure history related to acquisition of the data necessary for positioning with respect to each of the received signals, determine a reception condition of each of the received signals in accordance with the failure history, and suspend acquisition of the data necessary for positioning with respect to a signal having the reception condition determined to be at least equal to a predetermined reference level, the signal being among the signals from the plurality of positioning satellites.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: November 22, 2016
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Yuki Oshita
  • Patent number: 9483030
    Abstract: A receipt time determination unit of a control unit in a control circuit modifies a receipt time in a case where a gain determined by an AGC circuit in a receiver circuit unit is not less than a reference value, where it is discerned that there is an error in a time code by an error discernment unit of a TCO decoder unit in the control circuit unit, and where it is discerned that data of the time code is impacted by interference waves by an interference wave discernment unit of the TCO decoder unit.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: November 1, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Fumiaki Miyahara
  • Patent number: 9477208
    Abstract: Discussed are a smart watch and a control method for the same, which provide a notification indicating events, which are scheduled to occur later on the basis of a take-off time, if the smart watch is taken off. The smart watch includes a display unit to display content, a communication unit to perform transmission/reception of data, and a sensor unit to detect an input signal with regard to the smart watch and transmit the signal to a processor that serves to control the aforementioned units. The processor detects a take-off signal, indicating separation of the smart watch from a user, in a worn mode, to switch the smart watch to an unworn mode in response to the detected take-off signal, and provides a notification indicating at least one event that is scheduled to occur after detecting the take-off signal in the unworn mode.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: October 25, 2016
    Assignee: LG Electronics Inc.
    Inventors: Doyoung Lee, Yongsin Kim, Hyorim Park
  • Patent number: 9448539
    Abstract: An electronic timepiece has a receiver device that receives at least a first satellite signal containing a first leap second value and a second satellite signal containing a second leap second value; a timekeeping device that keeps time according to the current leap second; an evaluation condition setting unit that sets an evaluation condition of the correctness of the first leap second value and the second leap second value based on the timing of first satellite signal and second satellite signal reception; and a leap second correction unit that corrects the current leap second based on the first leap second value or the second leap second value when the first leap second value and the second leap second value satisfy the set evaluation condition.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: September 20, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Toshikazu Akiyama
  • Patent number: 9448538
    Abstract: An electronic timepiece efficiently receives satellite signals, reduces power consumption, and displays the correct time. A GPS wristwatch 1 has a satellite signal reception unit 10A that receives satellite signals and acquires time information contained in the satellite signals; a time information adjustment unit 25 that keeps times and adjusts the kept time based on the time information acquired by the automatic receiving unit 24; a reception result memory unit 313 that stores the reception result of the reception process performed by the automatic receiving unit 24; and a reception time setting unit 21 that sets the reception start time at which the reception process starts based on the reception result stored in the reception result memory unit 313. The automatic receiving unit 24 executes the reception process when the kept time reaches the reception start time set by the reception time setting unit 21.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: September 20, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Katsuyuki Honda
  • Patent number: 9405276
    Abstract: A radio controlled timepiece includes a GPS reception processing unit that searches for and captures a signal included in radio waves from a positioning satellite, demodulates and decodes the captured signal to acquire the data corresponding to acquisition target information in data transmitted from the positioning satellite, acquires the acquisition target information using the acquired data, holds a failure history related to acquisition of the data with respect to each captured signal, suspends acquisition of the data from a signal having a reception level determined to be at least equal to a predetermined reference level based on the failure history, and ends acquisition of the data when the number of signals from which the data is to be acquired after search for the signal is ended under a predetermined condition becomes smaller than the number of signals necessary in acquiring the acquisition target information.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: August 2, 2016
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Yuki Oshita
  • Patent number: 9335743
    Abstract: An electronic timepiece includes a display section, a display control section, a reception section, a clock section, a timing section, a leap second acquisition section, a time correction section that corrects internal time information by using time information acquired by the timing section, and a leap second correction section that corrects the internal time information by using leap second information acquired by the leap second acquisition section. In a case where the operation of the timing section is followed by the operation of the leap second acquisition section, the time correction section corrects the internal time information by using the time information acquired by the timing section, and the display control section causes the display section to display, before the leap second acquisition section acquires the leap second information, time based on the internal time information corrected by the time correction section.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: May 10, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Toshikazu Akiyama
  • Patent number: 9329578
    Abstract: A timepiece can acquire time information in a short time, reduce power consumption, and display the correct time. A timepiece comprises a receiver to receive a satellite signal, and a time information generator to generate internal time information. The receiver runs a first reception process that acquires first information including week information from the satellite signal, a second reception process that acquires second information including leap second information from the satellite signal, or a third reception process that acquires third information including hour, minute and second information from the satellite signal. In the first reception timing, after the internal time information is initialized, the receiver runs the first reception process and runs the second reception process after running the first. In a next reception timing, after the first reception timing, the receiver runs the third reception process if the first and second information are acquired in the first reception timing.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 3, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Norimitsu Baba
  • Patent number: 9317017
    Abstract: A reception time period required for time adjustment is reduced in a satellite radio-controlled wristwatch.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: April 19, 2016
    Assignees: CITIZEN HOLDINGS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: Akira Kato
  • Patent number: 9310777
    Abstract: Provided is a radio-controlled wristwatch, including: reception means (11) for receiving a radio wave from a satellite to extract time-of-week specifying information and week specifying information; clock means for counting a current date and time; date and time adjustment means for adjusting the current date and time counted by the clock means; week information holding means for holding the week specifying information; week information updating means for updating the week specifying information held in the week information holding means based on the current date and time counted by the clock means; and week information reception limiting means for limiting the reception of the week specifying information performed by the reception means, and controlling the reception means to receive the week specifying information in a predetermined case.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: April 12, 2016
    Assignees: CITIZEN HOLDINGS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: Akira Kato
  • Patent number: 9285781
    Abstract: A timepiece includes a case; a movement that is housed in the case and has multiple motors that drive respective staffs disposed at different locations; a patch antenna that is disposed inside the case and at the back side of the dial; and a battery that supplies power to the motors and is disposed at a position in the case that does not overlap the patch antenna in plan view. The position at which the battery is disposed overlaps at least one of the motors in plan view.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: March 15, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Teruhiko Fujisawa
  • Patent number: 9261861
    Abstract: A radio-controlled timepiece includes the following. A timekeeping unit keeps date and time. A satellite radio wave receiving unit receives a transmitting radio wave of a positioning satellite. A receiving term setting unit sets a receiving term with the satellite radio wave receiving unit. A date/time obtaining unit obtains date/time information from the transmitting radio wave received by the satellite radio wave receiving unit. An elapsed time counting unit counts elapsed time from when the date and time is obtained by the date/time obtaining unit. A first judging unit judges whether the elapsed time is less than a first reference time determined based on a timekeeping error of the timekeeping unit and a format of a signal transmitted from the positioning satellite.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: February 16, 2016
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Kosuke Hasegawa, Yuki Oshita, Takeshi Matsue
  • Patent number: 9250695
    Abstract: A display controller for use within an electronic device includes a dedicated memory and a low power display processor for displaying information when the electronic device is operating in a reduced power mode of operation (e.g., sleep mode). The memory stores display data for a predetermined image and the display processor supplies the display data to a display panel of the electronic device when the electronic device is operating in the reduced power mode. The display controller may also include a processor interface for receiving control information from the electronic device's device processor to enable the display processor to determine that the electronic device is operating in reduced power mode. The display processor may be configured to scale the stored display data when, due to memory size constraints, the memory stores the display data at a resolution that is different from (e.g., less than) the display panel resolution.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: February 2, 2016
    Assignee: Google Technology Holdings LLC
    Inventor: Lighten Tse
  • Patent number: 9236966
    Abstract: A clock synchronized control system includes a controller configured to control at least one function of a work machine. The controller may also be configured to select a clock source from among a plurality of external clock sources based on a predetermined order. The controller may be further configured to obtain information from the selected clock source. The controller may also be configured to use the obtained information to affect the at least one function of the work machine.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: January 12, 2016
    Assignee: Caterpillar Inc.
    Inventors: Anthony D. McNealy, Alan L. Ferguson
  • Patent number: 9229434
    Abstract: A radio-controlled timepiece is shown including the following. A receiving unit receives a transmitting radio wave including date/time information from a positioning satellite. A date/time information obtaining unit obtains a week number and elapsed time within a week as the date/time information. An operating unit receives operation. A term obtaining unit obtains a value of a 10 year digit of a present date and time. A first term setting unit sets a first date/time specified range including 10 years corresponding to the obtained value of the 10 year digit and a term adjacent to the 10 years with a predetermined length. A first date/time calculating unit calculates the present date and time within the set first date/time specified range. A date/time correcting unit corrects the date and time of a timekeeping unit based on the present date and time.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: January 5, 2016
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Kosuke Hasegawa
  • Patent number: 9215155
    Abstract: A method for selecting a mode of operation for at least two modems is described. First, a handshake procedure is performed in order to determine a set of possible modes of operation supported by said modems. From said set of possible modes of operation, a set of favorable modes of operation is derived. In case there exist two or more favorable modes of operation, a probing-based selection is performed that comprises evaluating respective performances of said favorable modes of operation. The favorable mode of operation with the best performance is selected as a resultant mode of operation.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: December 15, 2015
    Assignee: Broadcom Coporation
    Inventors: Miguel Peeters, Raphael Cassiers, Benoit Christiaens, Ruben Lysens, Olivier Van De Wiel
  • Patent number: 9195221
    Abstract: A timer includes: a case body made of synthetic resin; an outer case made of synthetic resin, located above the case body and extending to a portion of an upper face of a watch glass; a reinforcement member made of metal embedded in the case body to prevent deformation of the case body when the watch glass is fit thereto and ensure airtightness; and an antenna arranged inside the case body and beneath the reinforcement member, wherein the reinforcement member is embedded in the case body in no electrical continuity with a ground potential.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: November 24, 2015
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Yuki Oshita, Junro Yano, Yohei Kawaguchi
  • Patent number: 9116512
    Abstract: A timepiece includes a case; a dial made from nonconductive material; a movement that is housed in the case and has multiple motors that drive respective staffs disposed at different locations; a patch antenna that is disposed inside the case and at the back side of the dial; and a battery that supplies power to the motors and is disposed at a position in the case that does not overlap the patch antenna in plan view. The position at which the battery is disposed overlaps at least one of the motors in plan view.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: August 25, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Teruhiko Fujisawa
  • Patent number: 9098071
    Abstract: An electronic timepiece efficiently acquires leap second information, reduces power consumption, and enables displaying the correct time. A GPS wristwatch 1 has a satellite signal reception unit 10A that receives satellite signals, a power supply including a solar panel 70 and storage battery 60, a time information adjustment unit 25 that keeps time, a reception timing determination unit 24 that operates the satellite signal reception unit 10A, receives a satellite signal, and acquires leap second information contained in the satellite signal, and a reception determination unit 23 that detects the remaining capacity of the storage battery 60. When the remaining battery capacity measured by the reception determination unit 23 is greater than or equal to a specific value, the reception timing determination unit 24 sets the reception frequency for receiving a satellite signal higher than when the remaining battery capacity is less than the specific value.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: August 4, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Katsuyuki Honda
  • Patent number: 9069054
    Abstract: A microwave transmission apparatus is provided. A multiplexing unit generates multiplexed data based on a service clock rate. An interface unit writes and reads the multiplexed data at the service clock rate and a read clock rate respectively. An encoding and mapping unit performs encoding and mapping on the multiplexed data using a symbol clock rate to generate symbol data, and sends the symbol data to up conversion units. A clock tracking unit generates the symbol clock according to the system clock, and performs frequency division on the symbol clock to acquire the read clock. A stream control unit adjusts the service clock rate according to a water line error generated by the interface unit, so that the service clock rate is equal to the read clock rate. As a frequency and a phase of the system clock are fixed, even ACM switching occurs, the system clock is stably transferred.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: June 30, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Bing Jiang, Yihua Zhang
  • Publication number: 20150138927
    Abstract: A wireless clock system includes a master clock or other master time source, and a plurality of slave clocks or repeater devices. Each slave clock can both wirelessly receive and wirelessly transmit time signals including current time data. To avoid conflicts among the slave clocks, each slave clock transmits time signals in a frequency-hopping manner over pseudo-randomized frequencies and at pseudo-randomized transmission start times. In another embodiment, power consumption at the slave clocks is minimized by activating and deactivating receivers within the slave clocks at predetermined times and at predetermined intervals, each interval being longer than the previous interval, until valid time signals are received from either the master clock or another slave clock. Calibration of the slave clock's time base is also performed.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventors: Ilan Shemesh, Goll Ofec, Yariv Oren, Leor Hardi, Paz Hameiri
  • Publication number: 20150138928
    Abstract: A control method is provided for an electronic device that has a receiver to receive a satellite signal, and a time display unit to display time. The method includes selecting, by manual operation using a crown or a button, a first time correction processing or a second time correction processing. When the first time correction processing is selected, the control method further includes receiving a satellite signal, acquiring time information based on the received satellite signal, and correcting the displayed time based on the acquired time information. When the second time correction processing is selected, the control method further includes receiving a satellite signal, calculating the position of the electronic device based on satellite orbit information contained in the received satellite signal, and correcting the displayed time based on the calculated position.
    Type: Application
    Filed: December 23, 2014
    Publication date: May 21, 2015
    Inventor: Teruhiko Fujisawa
  • Patent number: 9007876
    Abstract: An electronic timepiece includes a GPS receiving section, which captures a satellite signal emitted from a positional information satellite and receives the satellite signal, and is capable of obtaining at least one of time information and positioning information, and a reception mode setting section adapted to set a reception mode selectively to at least a time measurement mode and a positioning mode. The GPS receiving section is provided with a base band section as a correlation section, and the correlation section is capable of changing the frequency resolution in a plurality of levels. Further, the correlation section sets the minimum value of the frequency resolution to be changed in the time measurement mode to a value larger than the minimum value of the frequency resolution to be changed in the positioning mode.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: April 14, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Jun Matsuzaki