Primary With Direct Synchronization Or Drive Patents (Class 368/52)
  • 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: 8250398
    Abstract: An electric vehicle charging station, which does not include a battery-backed Real Time Clock, is in a charging station network managed by a charging station network server. Upon booting, the charging station requests actual real time from a remote source. While the charging station has not received the actual real time, it records the time of charging station specific events in a local system time format that resets when the charging station loses power. The charging station maintains the events recorded in their local system time until actual time is received. When actual real time is received, the charging station synchronizes its local system clock with the actual real time and converts the time of each event into real time format. When actual time is received, the charging station converts the time of each event into real time format. After the time of the events are converted to real time format, they are communicated to the charging station network server for further processing.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: August 21, 2012
    Assignee: Coulomb Technologies, Inc.
    Inventors: James Solomon, Hongfei Cheng
  • Patent number: 7984001
    Abstract: A wireless communication system (20) includes a base station controller (22) that receives timing information from a data set (26) that is generated by a neural network (28). The data set (26) allows for generating timing information based upon previous time information received from a GPS (24) and in one example, is capable of covering a time interval of up to two weeks during which effective communication with the GPS may be interrupted. In one example, the data set is continuously updated so that the base station controller (24) continuously has up to two weeks of future time information available.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: July 19, 2011
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Christopher J. Capece, Behzad D. Mottahed
  • Patent number: 7911326
    Abstract: A master generator that updates time data of remote devices comprises an acquisition module, a clock module, an encoding module, and a transmission module. The acquisition module acquires time data representing current time of day. The clock module receives and stores the time data from the acquisition module and periodically updates the time data. The encoding module encodes the time data from the clock module into time messages. The transmission module selectively superimposes the time messages onto a power signal.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: March 22, 2011
    Assignee: Marvell World Trade Ltd.
    Inventor: Sehat Sutardja
  • Publication number: 20090196123
    Abstract: An appointment system for synchronizing disparate electronic calendars of a plurality of remote electronic devices is disclosed. The system includes a primary electronic calendar having a memory for storing information from the remote electronic devices. A processing means processes the information received from remote electronic devices that are connected to an electronic network. The primary electronic calendar utilizes a remote device access means to access each remote electronic device. The primary electronic calendar reads from and writes to each remote electronic calendar through one of the at least one remote device translation means thereby synchronizing the electronic calendar of each remote electronic device with the primary electronic calendar. Appointments, events and reminder maintained on any one of the electronic devices are displayed on all the remote electronic devices associated with the electronic network.
    Type: Application
    Filed: July 15, 2008
    Publication date: August 6, 2009
    Inventor: Rajesh Gautam
  • Publication number: 20090129208
    Abstract: According to one aspect, the invention provides a method of synchronizing a clock included in a device. According to one embodiment, the method includes acts of: (a) receiving with the device a clock signal including a time standard provided by a reference clock; (b) determining an elapsed time since a prior receipt of a clock signal including a time standard provided by the reference clock; (c) determining an error between a time provided by the clock signal received in act (a) and a time maintained by the clock included in the device; and (d) adjusting the time maintained by the clock included in the device to correct for the error determined by act (c), where the reference clock comprises an atomic clock.
    Type: Application
    Filed: January 28, 2009
    Publication date: May 21, 2009
    Inventor: Kenneth P. Weiss
  • Patent number: 7398411
    Abstract: Provided is a self-calibrating time code generator and method for generating an accurate time code (e.g., an accurate IRIG waveform). The self-calibrating time code generator includes a phase-locked loop configured to provide a generated output signal based on a phase difference between an absolute time reference signal and a compensated generated input signal, an IRIG encoder configured to couple a present time value with the generated output signal to form an IRIG waveform, a delay difference indicator configured to provide a time interval value based on a comparison of corresponding pulse edges of the generated output signal and the IRIG waveform, and a numerical delay component configured to delay the generated output signal by the time interval value to form the compensated generated input signal used to time-align the IRIG waveform with the absolute time reference signal to form the accurate IRIG waveform.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: July 8, 2008
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Gregary C. Zweigle, Jerry J. Bennett, Shankar V. Achanta
  • Patent number: 7395448
    Abstract: Information usable in determining the quality of time produced by a clock of a processing environment is obtained. The information is obtained directly by an application program absent use of a supervisor service, such as an operating system or operating system service. The application program invokes an instruction that returns a parameter block that includes the information.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: July 1, 2008
    Assignee: International Business Machines Corporation
    Inventor: Ronald M. Smith, Sr.
  • Patent number: 7385879
    Abstract: A radio-controlled clock (RCC) for receiving and decoding a transmitted time signal to display a precise time in accordance with a time standard. A light emitting diode (LED) display emits sufficient light for easy readability under all lighting conditions, including the time numerals. A signal reception indicator remains lit if the RCC has successfully decoded a time signal. If the time signal is currently being received and decoded, the signal reception indicator flashes. If the decoding is unsuccessful, the signal reception indicator will be unlit until the next decoding attempt. A power transformer to supply current to electronic circuitry contained within in the housing of the RCC is located in the power line cord, as at the plug end, to minimize electromagnetic interference with the decoding of the time signals. A signal strength indicator may have multiple segments to indicate if the received signal is strong, medium, weak or too weak for decoding.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: June 10, 2008
    Assignee: Equity Industries, Inc.
    Inventors: Keith Kibiloski, Charles Wong Tak Chung
  • Patent number: 7095679
    Abstract: In an analog electrical timepiece with a motor coil, when an external operating member is in a prescribed operating condition, the operating mode of the analog electrical timepiece is set to the data receive mode. Next, the analog timepiece generates a synchronization signal which is in synchronized to an external synchronization signal that is input from outside. Then, the analog electrical timepiece, when the operating mode is the data receive mode by the detection circuit, based on a synchronization signal and a data voltage signal that is a voltage signal induced around the motor coil by a data signal input from outside, generates and outputs a receive data.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: August 22, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Teruhiko Fujisawa, Takashi Kawaguchi, Fumiaki Miyahara
  • Patent number: 6850468
    Abstract: In an analog electrical timepiece with a motor coil, when an external operating member is in a prescribed operating condition, the operating mode of the analog electrical timepiece is set to the data receive mode. Next, the analog timepiece generates a synchronization signal which is in synchronized to an external synchronization signal that is input from outside. Then, the analog electrical timepiece, when the operating mode is the data receive mode by the detection circuit, based on a synchronization signal and a data voltage signal that is a voltage signal induced around the motor coil by a data signal input from outside, generates and outputs a receive data.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: February 1, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Teruhiko Fujisawa, Takashi Kawaguchi, Fumiaki Miyahara
  • Patent number: 6754138
    Abstract: A data transmission/reception system for wrist-type electronic timepiece. The data transmission/reception system for electronic timepieces comprises a data transmission device for generating data signals, and an electronic timepiece that receives data signals from the data transmission device by utilizing a coil for driving the hands, wherein the electronic timepiece is provided with a timing signal-generating means which generates a timing signal, and the data transmission device is provided with a timing signal-receiving means which receives the timing signals output from said hand-driving coil and transmits data signals in synchronism with the timing signals that are received. The data are transmitted and received in an ordinary hand-moving state without halting the timepiece while the functions are being operated. Therefore, there is no need of adjusting the time after the operation of the functions.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: June 22, 2004
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Masao Sakuyama
  • Patent number: 6548997
    Abstract: A novel and useful mechanism for measuring the time duration between asynchronous events. The mechanism utilizes two metastability resolvers, one for detecting the rising edge of the input signal and one for detecting its falling edge. The input signal is typically assumed to have some known nominal clock rate, but its exact frequency and phase (timing of transitions) are not known. Each of the two metastability resolvers comprises two branches of cascaded flip flops, each clocked off the rising edge and falling edge of a fast clock. Each metastability resolver functions to output an edge event signal and a clock phase signal indicating which edge of the fast clock the rising (or falling) edge of the data signal was closer to. The edge event signals are used to start and stop a counter clocked off the fast clock. The clock phase is used to correct (i.e. compensate) the counter value depending on which half cycle of the fast clock the rising and falling edge of the data signal arrived in.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: April 15, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Alexander Bronfer, Eldad Falik
  • Patent number: 6522601
    Abstract: A data transmission/reception system for wrist-type electronic timepiece. The data transmission/reception system for electronic timepieces comprises a data transmission device for generating data signals, and an electronic timepiece that receives data signals from the data transmission device by utilizing a coil for driving the hands, wherein the electronic timepiece is provided with a timing signal-generating means which generates a timing signal, and the data transmission device is provided with a timing signal-receiving means which receives the timing signals output from said hand-driving coil and transmits data signals in synchronism with the timing signals that are received. The data are transmitted and received in an ordinary hand-moving state without halting the timepiece while the functions are being operated. Therefore, there is no need of adjusting the time after the operation of the functions.
    Type: Grant
    Filed: November 28, 1997
    Date of Patent: February 18, 2003
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Masao Sakuyama
  • Patent number: 6205090
    Abstract: A self adjusting clock system operable to provide a uniform time display on clocks throughout a facility including a master time-keeper, a plurality of slave time-keepers, and a time-keeping correction apparatus for correcting time of the slave time-keepers in accordance with the master timekeeper. The master time-keeper keeps the correct time and is operable to generate a master signal representative of a time correction. This master signal is then received by the time-keeping correction apparatus and analyzed in combination with other applicable information. The time-keeping correction apparatus supplies a slave correction signal to the slave time-keepers. The slave time-keepers independently keep and display the slave time-keeper time and respond to the slave correction signal to correct their slave time-keeper time when it deviates from the correct time kept by the master time-keeper.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: March 20, 2001
    Inventors: Rodney K. Blount, Rex A. Darrow
  • Patent number: 5442599
    Abstract: A master secondary clock system of the analog impulse type consisting of separate motor driven secondary clocks and a master control unit. The secondary clocks can be set at any time by an appropriate signal from the master clock so that even widely scattered secondary clocks can be brought at any time to the correct time. In one disclosed embodiment, the secondary clocks are moved by a series of rapid pulses form the master clock to a predetermined known time, the secondary clocks are brought into registry, the master clock calculates the time disparity between the registration time and the real time, and the secondary clocks are moved in unison to the real time.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: August 15, 1995
    Assignee: National Time & Signal Corporation
    Inventors: Michael P. Burke, Stephen A. Bogdan, Bruce D. Emaus
  • Patent number: 5282180
    Abstract: A master/secondary clock system of the impulse type consisting of stepper motor driven secondary clocks and a master control unit. At five minutes before a predetermined registration time, for example 6:00, the sensor of each secondary clock movement is activated by a reverse polarity signal from the master control unit and a series of reset pulses are thereafter transmitted to the secondary clocks with each secondary clock stopping as the window in its drive train gear moves into alignment with the emitter and detector of its sensor mechanism. After this five minute pulse reset phase to correct clocks that are five or less minutes fast, the master control unit transmits a rapid pulse train so as to quickly move all of the remaining clocks to the 6:00 position with each clock being halted at the 6:00 position by movement of the window of its gear into alignment with the emitter and detector of the sensor mechanism of that clock.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: January 25, 1994
    Assignee: National Time & Signal Corporation
    Inventors: Michael P. Burke, Stephen A. Bogdan, Bruce D. Emaus
  • Patent number: 4206327
    Abstract: A switching arrangement comprises a spring-loaded clockwork movement and a switch to control a device, the movement of the spring itself, as it is tensioned or becomes substantially de-tensioned, being utilized to operate the switch.
    Type: Grant
    Filed: October 14, 1977
    Date of Patent: June 3, 1980
    Inventor: Herbert L. Lindsay