Plural Timepiece System Or System Device (e.g., Primary Or Secondary Clocks) Patents (Class 368/46)
  • Patent number: 9720385
    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: October 25, 2016
    Date of Patent: August 1, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Teruhiko Fujisawa
  • Patent number: 9690674
    Abstract: A method and system for maintaining clock synchronization in a communication network having multiple clocks are disclosed. According to one aspect, the invention provides a first precision time protocol (PTP) instance and second PTP service instance. Dynamic PTP parameters and tuning PTP parameters are periodically cloned from the first PTP service instance to the second PTP service instance substantially in real time.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: June 27, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Baifeng Cui, Qingfeng Yang
  • Patent number: 9679273
    Abstract: According to embodiments described in the specification, a method, system and apparatus for generating notification signals are provided. The method includes storing an identifier of a slave device in a memory of a master device; detecting, at a processor interconnected with the memory, a notification message via execution of a notification application; in response to detecting the notification message, retrieving the slave device identifier and transmitting an instruction message to the slave device, the instruction message including an identifier of the notification message and an alert parameter; and generating an alert via an output device interconnected with the processor according to the alert parameter.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: June 13, 2017
    Assignee: BLACKBERRY LIMITED
    Inventors: Hayward Ivan Craig Welcher, Daryl Joseph Martin
  • Patent number: 9621483
    Abstract: An EtherCAT packet forwarding system with distributed clocking is provided. The system comprises a master device and a plurality of slaves. The master comprises a processing port and a forward port for being respectively coupled to the at least two Ethernet ports of the master device in a redundant ring topology. The slaves comprise an internal clock indicating a current time, and a slave memory comprising a processing timestamp variable, a forwarding timestamp variable, a temporary timestamp variable and a copy-direct bit.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: April 11, 2017
    Assignee: NXP USA, INC.
    Inventors: Hezi Rahamim, Amir Yosha
  • Patent number: 9614577
    Abstract: A method and arrangement are provided for time synchronization between two geographically separated stationary clocks, such as first and second clocks located respectively at first and second ends of an AC power line. A first representation of an oscillating power line quantity is produced by measuring or recording the power line quantity at the first end of the power line, and time-stamping the first representation by the first clock. A second representation of the same oscillating power line quantity is produced by measuring the power line quantity at the second end of the power line, and time-stamping the second representation by the second clock. The first and second representations are compared to determine a clock offset between the first and second clocks. Based on the comparison, one or both of the first and second clocks are adjusted to reduce the determined clock offset.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: April 4, 2017
    Assignee: ABB Schweiz AG
    Inventor: Dacfey Dzung
  • Patent number: 9310780
    Abstract: An analog wearable electronic device that is operationally coupleable to a transmitting device. The transmitting device permits viewing a simulation of a display provided on the wearable electronic device, changing information displayable on the simulated display and transmitting the changed information and/or information from which the changed information is derivable to the wearable electronic device. The wearable electronic device includes a receiver for receiving from the transmitting device the changed information and/or the information from which the changed information is derivable. A controller assembly processes the changed information and/or derives the changed information, and an actuation mechanism moves a display indicator based at least in part on the changed information. The changed information is thereafter reflected on the display of the wearable electronic device by the display indicator.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: April 12, 2016
    Assignee: Timex Group USA, Inc.
    Inventors: Thomas Essery, Alexander Kniffin
  • Patent number: 9176809
    Abstract: A time information obtaining device and a radio-controlled timepiece are shown. According to one implementation, the time information obtaining device includes the following. A code identifying section identifies each code of a code string in a radio wave. A first portion parity calculating section calculates a portion parity where a parity bit of a variable code is subtracted from a parity code showing a parity bit for a code string portion. A first portion parity deciding section decides a portion parity based on a calculated number of portion parities. A second portion parity deciding section obtains a portion parity from an invariable code other than the variable code. A parity confirming section confirms a match between the portion parities decided by the first portion parity deciding section and the second portion parity deciding section.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: November 3, 2015
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Haruo Kajitani, Takashi Sano
  • Publication number: 20150107478
    Abstract: A timer key relating to monitoring a countdown time of a countdown routine of an electronic device is disclosed. The timer key comprises a processor configured to respond to a countdown time associated with operation of the electronic device, a display operably coupled with the processor, and a housing configured to house at least the processor. The housing has an associated structure configured to engage with the electronic device to share the countdown time between the electronic device and the timer key. The processor is configured to begin a countdown routine based at least in part on the countdown time, wherein the countdown routine is at least substantially synchronized with a countdown routine of the electronic device when the timer key is removed from the electronic device. A system and method for synchronizing countdown routines of a timer key and an electronic device are also disclosed.
    Type: Application
    Filed: April 14, 2014
    Publication date: April 23, 2015
    Applicant: Battelle Energy Alliance, LLC
    Inventors: Reston A. Condit, Michael A. Daniels, Gregory P. Clemens, Eric S. Tomberlin, Joel A. Johnson
  • Patent number: 9001625
    Abstract: An analog wearable electronic device that is operationally coupleable to a transmitting device. The transmitting device includes means for viewing a simulation of a display provided on the wearable electronic device, changing information displayable on the simulated display and transmitting the changed information and/or information from which the changed information is derivable to the wearable electronic device. The wearable electronic device includes a receiver for receiving from the transmitting device the changed information and/or the information from which the changed information is derivable. A controller assembly processes the changed information and/or derives the changed information, and an actuation mechanism moves a display indicator based at least in part on the changed information. The changed information is thereafter reflected on the display of the wearable electronic device by the display indicator.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: April 7, 2015
    Assignee: Timex Group USA, Inc.
    Inventors: Thomas Essery, Alexander Kniffin
  • Patent number: 8873342
    Abstract: A wristwatch includes a face having a first area, in which the hour of the time associated with a first time zone is displayable; a second area, in which the hour of the time associated with a second time zone is displayable; and a third area, in which the minutes past the respective hours of the first and second time zones is displayable. The first area includes an analog display of an hour hand without a minute hand; the second area includes an analog display of an hour hand without a minute hand; and the third area includes an analog display of a minute hand without an hour hand. Each of the displays alternatively could be digital. Each of the areas preferably is compartmentalized and physically separated from the other areas on the face of the wristwatch.
    Type: Grant
    Filed: February 23, 2013
    Date of Patent: October 28, 2014
    Assignee: UCB Industries, LLC
    Inventors: Ursula Blackshere Boudreaux, Ian D. Kovacevich, Daniel Lee Bizzell
  • Publication number: 20140192624
    Abstract: An information processing apparatus includes: a communication device communicating with an external device and a clock server; a first clock measuring a local time; a second clock measuring a time based on time information from the clock server; a storage device storing setting information; and a controller performing: when receiving the time information from the external device, judging whether a specified condition is met; when the specified condition is met, setting a time indicated by the time information to the first clock as the local time; when the specified condition is met, controlling the first clock to measure the local time, without the controller setting the time to the first clock as the local time; setting the time indicated by the time information to the second clock and setting a time determined based on the time of the second clock and the setting information to the first clock.
    Type: Application
    Filed: January 7, 2014
    Publication date: July 10, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Takatoshi ONO
  • Patent number: 8750078
    Abstract: A slave device includes: a clock unit that outputs time information; a message receiving unit that receives messages sent from a master device; a message sending unit that sends messages to the master device; a calculation unit that calculates a correction value necessary for correcting the time on the clock unit; and a correction unit that corrects the time on the clock unit based on the correction value calculated by the calculation unit.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: June 10, 2014
    Assignee: Sony Corporation
    Inventor: Naoki Inomata
  • Patent number: 8737173
    Abstract: In one embodiment, a computer readable medium is provided that includes a date time zone dimension table comprising a date key and a time zone key, the date key identifying a selected point in time relative to a selected temporal origin and the time zone key identifying one of a plurality of possible time zones, and at least one attribute, the at least one attribute describing time information for a selected date and time zone key pair.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: May 27, 2014
    Assignee: Avaya Inc.
    Inventor: Jeffrey James Olson
  • Patent number: 8701560
    Abstract: A timer key relating to monitoring a countdown time of a countdown routine of an electronic device is disclosed. The timer key comprises a processor configured to respond to a countdown time associated with operation of the electronic device, a display operably coupled with the processor, and a housing configured to house at least the processor. The housing has an associated structure configured to engage with the electronic device to share the countdown time between the electronic device and the timer key. The processor is configured to begin a countdown routine based at least in part on the countdown time, wherein the countdown routine is at least substantially synchronized with a countdown routine of the electronic device when the timer key is removed from the electronic device. A system and method for synchronizing countdown routines of a timer key and an electronic device are also disclosed.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: April 22, 2014
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Reston A. Condit, Michael A. Daniels, Gregory P. Clemens, Eric S. Tomberlin, Joel A. Johnson
  • Patent number: 8693506
    Abstract: A transparent clock adaptor is provided for use with a router, switch or other network device that does not otherwise support transparent clock functionality. The transparent clock adaptor comprises a network port for coupling to a link of a network, a local port for coupling to a port of the network device, transparent clock processing circuitry operative to perform one or more transparent clock timing adjustment operations for each of a plurality of packets including at least one packet arriving in the adaptor via the network port and at least one packet arriving in the adaptor via the local port, and a synchronization interface for communicating with a corresponding synchronization interface of at least one other transparent clock adaptor. The adaptor can operate both as an ingress adaptor for packets arriving over the network link for delivery to the network device and as an egress adaptor for packets arriving from the network device for delivery over the network link.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: April 8, 2014
    Assignee: Alcatel Lucent
    Inventor: Ilija Hadzic
  • Publication number: 20140092713
    Abstract: The present invention discloses a method, a device, a server, and a system for configuring daylight saving time, belonging to the field of communications. The method includes: receiving, by a CPE, a message carrying a daylight saving time rule parameter; if a daylight saving time enable flag displays that daylight saving time is enabled, extracting, by the CPE, the daylight saving time rule parameter from the message; obtaining the current year of the CPE; and obtaining start time or end time of daylight saving time according to the current year and the daylight saving time rule parameter. The system includes a CPE and a server. The CPE includes a receiving module, an extracting module, a first obtaining module, and a second obtaining module. The server includes a generating module and a sending module. Through the present invention, daylight saving time can be configured in a single attempt and used permanently.
    Type: Application
    Filed: March 13, 2013
    Publication date: April 3, 2014
    Applicant: Huawei Device Co., Ltd.
    Inventor: Huawei Device Co., Ltd.
  • Publication number: 20140085141
    Abstract: Apparatus for providing timing information, the apparatus comprising: a primary reference time clock (PRTC) that provides a reference time of day (ToD) and a reference frequency; a packet master clock that receives the ToD and reference frequency and is configured to distribute timing to a slave clock in accordance with a timing over packet procedure responsive to the ToD and the reference frequency; and a housing that houses the PRTC and packet master clock which may be plugged into a conventional small form factor (SFP) compliant cage to connect the packet master clock to a packet switched network (PSN).
    Type: Application
    Filed: September 25, 2012
    Publication date: March 27, 2014
    Applicant: RAD DATA COMMUNICATIONS LTD.
    Inventors: Alon Geva, Yaakov Stein
  • Publication number: 20140003199
    Abstract: Methods, time consumer systems, and computer program products for maintaining accurate time on an ideal clock of a timing device are disclosed. The method includes receiving time information from a local clock, a reference clock, and one or more secondary clocks. The method further includes calculating frequencies for the local clock, the reference clock, and the one or more secondary clocks. The method further includes comparing the calculated frequencies of the reference clock to the calculated frequencies of the one or more secondary clocks. The method further includes detecting a holdover and/or a compromise situation based on the comparison. The method further includes syntonizing the ideal clock to one or more of the calculated frequencies.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 2, 2014
    Inventors: Cort DOUGAN, Victor Yodaiken
  • Publication number: 20130272099
    Abstract: A time calibration method includes steps: establishing a connection between the electronic device and the communication device. A trigger signal is produced to the communication device in response to the operation of the user triggering the communication device to update the time of the communication device. The time provided by the electronic device is obtained and compared to the time provided by the communication device. The time of the electronic device is calibrated according to the updated time of the communication device if the difference between the time provided by the electronic device and the updated time provided by the communication device is greater than a predetermined value.
    Type: Application
    Filed: October 25, 2012
    Publication date: October 17, 2013
    Inventor: FENG-CHI YANG
  • Patent number: 8472284
    Abstract: A radio controlled timepiece includes: a radio wave receiving section which outputs a time code signal; an indicator display section which performs a display regarding a reception condition; a level change detecting section which detects a change of a signal level of the time code signal in a predetermined detection interval in a period of 1 second; an indicator control section which controls a content of the display based on a number of times that the change of the detected signal level appears; and an interval setting section which specifies the detection interval as a whole interval of the period of 1 second during a detecting process of a synchronization point in the time code signal every 1 second, and narrows the detection interval to be a certain interval within the period of 1 second after a detection of the synchronization point every 1 second.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: June 25, 2013
    Assignee: Casio Computer Co., Ltd
    Inventors: Teruhisa Tokiwa, Takashi Sano
  • Patent number: 8472283
    Abstract: In a clock synchronization system, clocks on a local area network are synchronized to a standard time signal such as the Network Time Protocol (NTP) signal or the Global Positioning System (GPS) time signal. A terminal on the network enables a user to introduce an offset to the clocks individually so that clocks can display the time in different time zones.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: June 25, 2013
    Inventor: Jeremy Laurence Fischer
  • Patent number: 8446223
    Abstract: Systems and methods for calibrating real time clock are provided. A representative receiver includes a GPS device comprising a real time clock (RTC) circuitry that generates RTC clock signals and a temperature compensated crystal oscillator (TCXO) that generates TCXO clock signals. A ratio counter circuitry receives both the RTC clock signals and the TCXO clock signals and determines a frequency ratio by comparing the RTC clock signals and the TCXO clock signals. A computing device receives the frequency ratio and estimates a current RTC frequency based on the received frequency ratio. The computing device is configured to calibrate an estimated RTC time being maintained at the RTC circuitry based on an estimated RTC frequency from a prior estimation, the current RTC frequency and an elapsed time of the RTC circuitry.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: May 21, 2013
    Assignee: CSR Technology, Inc.
    Inventor: Steven A Gronemeyer
  • Patent number: 8438415
    Abstract: A system, method and computer program product for steering a time-of-day (TOD) clock for a computer system having a physical clock providing a time base for executing operations that is stepped to a common oscillator. The method includes receiving, at a processing unit, a request to change a clock steering rate used to control a TOD-clock offset value for the processing unit, the TOD-clock offset defined as a function of a start time (s), a base offset (b), and a steering rate (r). The unit schedules a next episode start time with which to update the TOD-clock offset value. After updating TOD-clock offset value (d) at the scheduled time, TOD-clock offset value is added to a physical-clock value (Tr) value to obtain a logical TOD-clock value (Tb), where the logical TOD-clock value is adjustable without adjusting a stepping rate of the oscillator.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: May 7, 2013
    Assignee: International Business Machines Corporation
    Inventors: Eberhard Engler, Mark S. Farrell, Klaus Meissner, Mark A. Check, Evangelyn K. Smith
  • Patent number: 8427907
    Abstract: A clock device acquires time information representing present time from an external device at preset time intervals, corrects time of an internal clock based on the time information, calculates an error of the time of the internal clock based on the present time represented by the time information, and changes a first set value of the time interval based on the error. The changing updates the first set value to a second set value, which is m times the first set value when the error is smaller than a first threshold value, while updating the first set value to a second set value, which is n times the set value when the error is larger than a second threshold value larger than the first threshold value (m, n: positive values satisfying m>1, n<1 and m·n?1).
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: April 23, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroshi Shibata
  • Patent number: 8395969
    Abstract: Method and apparatus to implement a “virtual” real-time clock at a terminal based on time information from multiple communication systems. At least one system (e.g., GPS) provides “absolute” time information for the virtual real-time clock, and at least one other system (e.g., a cellular system) provides “relative” time information. The virtual real-time clock is “time-stamped” with absolute time as it becomes available from the first system. Relative time (which may be received from multiple asynchronous transmitters) is mapped to the timeline of the virtual real-time clock as it is received from the second system. Absolute time at any arbitrary time instant on the timeline may then be estimated based on the absolute time from the first system and the relative time from the second system. Absolute times from the first system for two or more time instants may also be used to calibrate the relative time from the second system.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: March 12, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Dominic Gerard Farmer
  • Patent number: 8391105
    Abstract: A real time clock circuit is provided that has an onboard oscillator continuously providing an internal clock frequency, which is digitally synchronized to a more accurate reference clock frequency. An exemplary real time clock inhibits synchronization of the internal clock frequency when the reference clock is unavailable or if the reference clock's frequency is outside of a defined accuracy range.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: March 5, 2013
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Luke Raymond
  • Patent number: 8385156
    Abstract: A start date and an end date of a daylight saving time input by a user is stored in the daylight saving time information storage unit (41). The radio-controlled adjustment section (20) generates a time to adjust the time which the clocking unit (10) is clocking, by daylight saving time information and a standard time received via an antenna (AT) and a reception circuit (21), and adjusts the time of the clocking unit (10) by use of the generated time. Here, the daylight saving time determination unit (42) references to the daylight saving time period stored in the daylight saving time information storage unit (41), and adjusts the time of the clocking unit (10) so that the time becomes one which corresponds to the user-set daylight saving time.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: February 26, 2013
    Assignee: Seiko Precision Inc.
    Inventor: Kenji Ozawa
  • Patent number: 8375081
    Abstract: Calendar repair may be provided. Calendar events, such as appointments and meetings, may be created and copied to a plurality of attendee calendars. A first copy of the event may be compared to a second copy of the event, and an event property of the second event may be updated to match a corresponding event property of the first event.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: February 12, 2013
    Assignee: Microsoft Corporation
    Inventors: Vanessa C. Feliberti, Cliff M. Don, Firdosh R. Ghyara, Sina Hakami, Matthias Leibmann, Roberto Ribeiro Da Fonseca Mendes, Paul David Tischhauser
  • Patent number: 8370675
    Abstract: A method for clock synchronization includes computing an offset value between a local clock time of a real-time clock circuit and a reference clock time, and loading the offset value into a register that is associated with the real-time clock circuit. The local clock time is then summed with the value in the register so as to give an adjusted value of the local clock time that is synchronized with the reference clock.
    Type: Grant
    Filed: November 15, 2009
    Date of Patent: February 5, 2013
    Assignee: Mellanox Technologies Ltd.
    Inventor: Michael Kagan
  • Patent number: 8369186
    Abstract: Methods and systems of extending battery life of remote battery-operated timekeeping devices by minimizing the number of required synchronizations per unit of time needed to maintain a predetermined accuracy of the devices. The number of synchronizations are minimized by first calculating a time error rate between the remote timekeeping device and a master device over a sample period. Then, a synchronization is delayed and the remote timekeeping device is compensated based on the time error rate. The compensation delays the need for a synchronization yet maintains the predetermined accuracy of the remote timekeeping device. In some embodiments, the remote timekeeping device is compensated and multiple synchronizations are delayed before a new synchronization is necessary to maintain the predetermined accuracy.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: February 5, 2013
    Assignee: Primex Wireless, Inc.
    Inventors: Derek J. Brykowski, Terrence J. O'Neill, Vince Guarna, John Hill
  • Patent number: 8351301
    Abstract: An electronic timepiece includes a reception unit that receives satellite signals transmitted from positioning information satellites; a time information generating unit that generates an internal time; an automatic reception processing unit that activates the reception unit when predefined conditions are met to perform automatic reception processing, and performs simple time correction processing including acquiring time information from satellite signals received from one of the satellites, and, based thereon, correcting the internal time; and a manual reception processing unit that activates the reception unit via operation of an external member to perform manual reception processing, and performs simple time or high precision correction processing to correct the internal time, the high precision time correction processing including acquiring time and satellite orbit information from satellite signals received from two or more of the satellites, calculating a position of the timepiece, and correcting the i
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: January 8, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Teruhiko Fujisawa
  • Patent number: 8335132
    Abstract: A system and method for determining local time at an electronic device is disclosed. The system may include an input configured to receive home information for an electronic device. The system may also include a calibration module configured to calibrate the electronic device to a home time zone corresponding to the home information. Calibrating the electronic device may include determining a threshold time value for messages to be transmitted to and received from a home location associated with the home information and generating a time zone database based on the home time zone, and labeling each time zone in the time zone database with a label based on an offset in time from the home time zone. A time value corresponding to time of message transmission to and from the home location may also be determined.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: December 18, 2012
    Assignee: Verizon Patent and Licensing Inc
    Inventor: Scott D. Arena
  • Patent number: 8331200
    Abstract: In general, the subject matter described in this specification can be embodied in methods, systems, and program products for determining a time zone for a computing device. A computing system identifies an approximate location of the computing device. The computing system identifies multiple time zones that correspond to the approximate location of the computing device. The computing system identifies a time offset for the computing device at a point in time. The computing system determines, as being a time zone for the computing device, a single time zone of the multiple time zones that matches the time offset at the point in time.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: December 11, 2012
    Assignee: Google Inc.
    Inventors: Qingshan Luo, Timothy M. Dierks, Arturo Crespo
  • Patent number: 8286207
    Abstract: A system for initiating scheduled program processing functions such as program display, recording or playback, derives a time clock based on a current time reference indication produced by a particular broadcast source. The derived time clock is used in initiating scheduled processing functions for programs derived from the particular broadcast source and time clocks derived from sources other than the particular broadcast source are disregarded. The system displays a second time clock different to the derived time clock. In addition, the system forms a composite program guide from data from multiple broadcast sources to associate current time reference indications with their corresponding broadcast sources.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: October 9, 2012
    Assignee: Thomson Licensing
    Inventors: Daniel Richard Schneidewend, Aaron Hal Dinwiddie
  • Patent number: 8223593
    Abstract: An electronic timepiece includes a reception unit that receives satellite signals transmitted from positioning information satellites; a manual reception process unit that starts operation of the reception unit and executes a manual reception process when an external operating member is operated; an automatic reception process unit that automatically operates the reception unit and executes an automatic reception process when a predetermined condition is satisfied; a simple time adjustment process unit that executes such a process to receive a satellite signal from one positioning information satellite, acquire time information from the received satellite signal, and adjust an internal time; and a high precision time adjustment process unit that executes such a process to receive satellite signals from a plurality of positioning information satellites, acquire time and positioning information from the received satellite signals and determine the location, and adjust the internal time to the time acquired base
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: July 17, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Teruhiko Fujisawa
  • Patent number: 8185770
    Abstract: Modern computers (10, 20) come with different timers having different attributes like time resolution, supported time range and time reference. Some are local timers, representing relative time values like the TSC counter (11, 21) counting CPU cycles from the power on or reset of the computer. Some are global timers, representing an absolute or real time. Having different classes of timers in the computer (10, 20), a number of computations need to be performed to tie the different timers to each other. It is the idea of the invention to define a single high resolution timer structure wherein the time value is represented with a digital number and a flag clarifies whether the timer is a global timer or local timer. The invention enables a much faster processing of the time values. The global time, tied to a high-resolution timer can be tracked much faster. This means better precision of scheduling of time critical jobs, like packet scheduling for data transport.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: May 22, 2012
    Assignee: Tixel GmbH
    Inventors: Eduard Siemens, Frank Glaeser, Jens Brocke, Stefan Kubsch, Ralf Koehler, Andreas Matthias Aust
  • Patent number: 8181057
    Abstract: To synchronize units of a formation evaluation/drilling operation evaluation system, a time delay associated with a communications link between a master unit and a slave unit of the formation evaluation/drilling operation evaluation system is determined. The master unit has a master time clock that provides universal time. The time delay associated with the communications link is used to enable synchronization of time provided by a slave time clock in the slave unit to the universal time.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: May 15, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Edward Nichols, Yuji Hosoda, Thor Johnsen, Vamsi Vytla, Hong Zhang, Luis DePavia
  • Patent number: 8169856
    Abstract: Techniques are described herein for synchronizing cluster time. According to one technique, a master node is appointed in a cluster. Other “slave” nodes periodically synchronize their clocks with the master node. To synchronize its clock with the master node, a slave node sends a timestamped message to the master node, which also timestamps the message and sends the message back to the slave node, which then timestamps the message again. Based on the timestamps, the slave node is able to determine the difference between the master node's clock's time and slave node's clock's time, compensating for the message travel time between master node and slave node. Depending on various circumstances, and based on the determined difference, the slave node adjusts its clock so that the time indicated by the slave node's clock at least begins to approach more closely the time indicated by the master node's clock.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: May 1, 2012
    Assignee: Oracle International Corporation
    Inventors: Vikram Rai, Alok Srivastava, Angelo Pruscino, Sameer Joshi
  • Patent number: 8160184
    Abstract: A method for extracting time information from a received, amplitude-modulated time signal is provided. The method provides that the time signal is demodulated, the analog signal thus obtained is digitized by a comparator, and the digital signal thus obtained is analyzed to extract the time information. In addition, a characteristic value of the time duration of at least one signal phase of a specific signal level of the digital signal is compared to a target value, and a comparator threshold of the comparator is altered as a function of a result of the comparison such that the time duration of at least the applicable signal phase of the digital signal approaches the target value. In this way, an improved system sensitivity is achieved according to the invention in a receiver for receiving time signals.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: April 17, 2012
    Assignee: Atmel Corporation
    Inventor: Horst Haefner
  • Patent number: 8135978
    Abstract: A system, method and computer program product for performing a Perform Timing Facility (PTFF) instruction for steering a Time of Day (TOD) clock of the computer system for synchronizing the TOD clock with TOD clocks of other computer systems. The computer system comprises a memory; and, a processor in communications with the computer memory.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: March 13, 2012
    Assignee: International Business Machines Corporation
    Inventors: Eberhard Engler, Mark S. Farrell, Klaus Meissner, Ronald M. Smith, Sr., Evangelyn K. Smith, legal representative, Mark A. Check
  • Patent number: 8122154
    Abstract: In a storage system that manages update prohibition (WORM) information, when time management is not performed with precision, there arises a possibility that an update prohibition (WORM) attribute may be erased before a preservation period expires.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: February 21, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Junji Ogawa, Yusuke Nonaka
  • Publication number: 20110310708
    Abstract: A device with a camera take pictures of a clock in order to use the time displayed on the clock to calibrate the time thereof. The device identifies elements related to time representation and extract features from the identified elements. The device translates the extracted features into a time data. The device sets time thereof with the time data.
    Type: Application
    Filed: July 7, 2010
    Publication date: December 22, 2011
    Applicants: CHI MEI COMMUNICATION SYSTEMS, INC., SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventor: JIAN-PING CHEN
  • Patent number: 8077808
    Abstract: Disclosed is a radio wave receiver including: a receiving unit to receive a radio wave including a time code in which a plurality of types of data pulse different in pulse width from one another are arranged with a predetermined period of time; a detection circuit to detect the time code in the radio wave received by the receiving unit to obtain a detected signal; a low-pass filter to pass low-frequency components in the detected signal detected by the detection circuit, a cutoff frequency of the low-pass filter being twice a transmit frequency of the data pulse or less; and a data distinction unit to distinguish the types of data pulse based on an output of the low-pass filter for at least one specific point of time during a transmit period of data pulse.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: December 13, 2011
    Assignee: Casio Computer Co., Ltd.
    Inventor: Kaoru Someya
  • Publication number: 20110280109
    Abstract: A real time clock circuit is provided that has an onboard oscillator continuously providing an internal clock frequency, which is digitally synchronized to a more accurate reference clock frequency. An exemplary real time clock inhibits synchronization of the internal clock frequency when the reference clock is unavailable or if the reference clock's frequency is outside of a defined accuracy range.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 17, 2011
    Applicant: MAXIM INTEGRATED PRODUCTS, INC.
    Inventor: LUKE RAYMOND
  • Patent number: 8050147
    Abstract: A breastfeeding assist timepiece includes a housing containing a first live time display and a second resettable static time display. A left/right side indicator is defined at a further location of said housing. In use, the static time display is continuously reset to a time of a most recently completed feeding, with the left/right side indicator further designating a left or right breast employed first in the most recent feeding and in order to more accurately predict the timing of a present or future feeding, as well as which breast to be initially employed in that feeding.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: November 1, 2011
    Assignee: The Anthena Company, LLC
    Inventor: Aindrea McKelvey Campbell
  • Publication number: 20110261657
    Abstract: The system for timing a sports competition includes a main timing device having a first time base, and a secondary timing device having a second time base (5). The two timing devices are capable of operating in parallel when the timing system is enabled. The two timing devices are arranged such that the second time base (5) is synchronised by using a reference timer signal (CLKref) generated by the first time base. The second time base (5) includes a phase lock loop (10, 11, 12, 13, 14, 17) for adapting the frequency of the second timer signal (CLK_T2) according to the frequency of the reference timer signal (CLKref). FIG.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 27, 2011
    Applicant: SWISS TIMING LTD
    Inventor: Fabien BLONDEAU
  • Patent number: 8009519
    Abstract: Various embodiments for maintaining a reliable time clock on a mobile computing device are described. In one embodiment, a mobile computing device may optionally enable and disable acquisition of time data from multiple sources including a mobile network and a global positioning system (GPS) satellite. The mobile computing device may comprise a time clock to display local time information derived from stored time data and may prioritize the multiple sources for writing and overwriting the stored time data to converge to the most reliable time data available. Other embodiments are described and claimed.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: August 30, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Cherif Jazra, Jianxiong Shi
  • Patent number: 8000172
    Abstract: A time control apparatus, which is not equipped with an auxiliary batter for real time control, includes a time information memory for storing real time information updated for a user; and a real time controller, in response to powering on, if the real time information stored in the time information memory is earlier than time information of the real time controller, displaying the real time information of the real time controller to a user and simultaneously updating the real time information in the time information memory without performing a time setting operation. It is possible to discern between a powering-off case where the battery is not removed from the terminal and a powering-off case where the battery is removed from the terminal in order to avoid a time setting operation that is unnecessary to the user.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: August 16, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Won-Jong Park
  • Patent number: 7995424
    Abstract: An electronic device includes a timer which measures a current time, a display which displays information based on the time, a receiver which, by receiving and decoding a signal, including time information indicating a standard time, which is encoded by means of a predetermined communication system, acquires the time information, and a controller which, as well as instructing the receiver to acquire the time information, corrects a deviation of the measured time, based on the time information, and instructs the display to display information based on the corrected time. The controller gives an instruction in such a way that no time period occurs in which both the receiver's operation of acquiring the time information, and the display's operation of displaying the information based on the corrected time, are executed.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: August 9, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Michio Irie, Osamu Urano
  • Patent number: 7983115
    Abstract: A time management system that includes a first clock having a first counter operating on a first timebase, a second clock having a second counter operating on a second timebase identical to the first timebase and a third counter operating on a third timebase less than the second timebase. The time management system performs a resynchronization of the second clock after the main electrical power supply has been restored, this resynchronization including, on a modification of the first counter, loading the first counter into the second counter and in zeroing the third counter.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: July 19, 2011
    Assignee: Schneider Electric Industries SAS
    Inventors: Giovanni Ianni, Jacques Piacibello