Synchronization Patents (Class 340/681)
  • Patent number: 8371551
    Abstract: An apparatus for adjusting the level of a refrigerator includes: a main body; a guide groove formed to be level in a forward/backward direction of the main body; a movement unit inserted in the guide groove and moving in the direction in which the main body is inclined; a contact point part formed at one of both ends of the guide groove and selectively connected to the movement unit; and a notifying unit informing about whether or not the contact point part is connected. When the refrigerator is installed, an installation technician can recognize whether or not the refrigerator is installed to be level regardless of a skilled degree of the installation technician, so the installation time can be shortened and a service satisfaction of consumers can be increased.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: February 12, 2013
    Assignee: LG Electronics Inc.
    Inventor: Woo-Jin Jang
  • Patent number: 8325053
    Abstract: Apparatus for monitoring compliance with the 100% tied off rule for climbers using personal fall protection equipment. The personal fall protection monitoring system includes a remote monitoring module that monitors multiple harness systems. Each harness system includes sensors that detect the engagement of the lanyard with anchorage points and the harness. The system also includes a harness module that monitors the sensors and indicates an alarm condition to the climber and to the remote monitoring module. The harness module includes a transmitter that communicates with the remote monitoring module. The remote monitoring module communicates with multiple harness systems to indicate and log the status of each harness system.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: December 4, 2012
    Assignee: JCJ Inc.
    Inventors: William N. Flynt, Shawn A. Remington, Jacob M. Martin, Timothy Vile
  • Patent number: 8269620
    Abstract: An alarm trend summary display system and method can utilize an alarm trend list that works together with an alarm summary list. A set of rows in the alarm trend list can be organized in a top-to-bottom manner. A set of alarm indicators within each row in the alarm trend list can be arranged in a right-to-left horizontal arrangement. The set of alarm indicators can be aligned with most recent alarms appearing on a right side of the alarm trend list. The specific alarm indicators can be selected in the alarm trend list, so that a corresponding item can be highlighted in the alarm summary list, if the alarms are active. Hence, the system and method can allow an operator to see when alarms occur, their sequence, relations and priority, which aid the operators cope with inevitable alarm floods.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: September 18, 2012
    Assignee: Honeywell Internatonal Inc.
    Inventors: Peter Bullemer, Dal Vernon C. Reising, Mischa Tolsma
  • Patent number: 8233576
    Abstract: A synchronization sequence (preamble) that is known to the receiver forms as an integral part of packet-based digital communication systems. The first operation in such digital communication systems is the detection of the beginning of a valid signal (packet). A system, apparatus, and method for a scheme to robustly detect the preamble are provided having a hierarchical cross-correlator in combination with a second stage delayed auto-correlator using the output of the cross-correlator as an input to the second stage correlator.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: July 31, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Dagnachew Birru
  • Patent number: 8209078
    Abstract: An electronic control unit (ECU) and a vehicle control system are disclosed. When a vehicle ID rewrite instruction and a malfunction information erasure instruction are inputted to the system from an external scantool, one ECU in the system erases the malfunction information stored therein and determines whether the malfunction information stored in another ECU has been erased. When it is determined that the malfunction information stored in every ECU has been erased, the vehicle ID is rewritten. According to the above system, it is possible to prevent violation of a requirement, the requirement being such that when a vehicle ID is rewritten, malfunction information should be erased at the same time.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: June 26, 2012
    Assignee: Denso Corporation
    Inventor: Kazunori Okada
  • Patent number: 8184741
    Abstract: A receiving device includes: a first signal processor, for receiving a radio frequency signal, and converting the radio frequency signal to generate a first signal, where the radio frequency signal includes a plurality of frames; a second signal processor, coupled to the first signal processor, for performing a Fourier transform operation on the first signal according to a synchronization signal to generate an output signal; a first filter, coupled to the first signal processor, for filtering the first signal to generate a second signal; and a synchronization detection circuit, coupled to the first filter, for detecting the second signal to generate the synchronization signal. The first signal includes a channel signal and at least a portion of neighboring channel signals from neighboring channels, and the output signal corresponds to the channel signal.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: May 22, 2012
    Assignee: Realtek Semiconductor Corp.
    Inventors: Wei-Hung He, Chin-Tai Chen
  • Patent number: 7944367
    Abstract: A system includes a comparator that triggers a signal indicating an event occurrence of a moving element of a machine that is sensed by a sensor. The signal is triggered in response to a raw signal from the sensor exceeding a trigger level. Logic calculates a hold off time for re-triggering of the signal, and a timer monitors expiration of the hold off time. A trigger screener monitors amplitude of the raw signal and accepts a triggering of the signal from the comparator in response to expiration of the hold off time and the raw signal exceeding a re-trigger level.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: May 17, 2011
    Assignee: General Electric Company
    Inventor: Matthew Allen Nelson
  • Patent number: 7876231
    Abstract: An integrated management system having at least one air conditioner group including a plurality of air conditioners, and a remote integrated management system connected to the at least one air conditioner group and configured to analyze operation state information related to the plurality of air conditioners in the at least one air conditioner group and to generate an alarm signal based on the analyzed operation state information.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: January 25, 2011
    Assignee: LG Electronics Inc.
    Inventors: Jun-Tae Kim, Sang-Chul Youn, Duck-Gu Jeon
  • Publication number: 20100235138
    Abstract: A system and method is provided for determining changes in the angular position of a driven pulley, with respect to a driving pulley, when the driven and driving pulleys are synchronously linked by a flexible drive member such as a toothed belt or a chain. From these determined changes in the angular positions, the system and method can determine the condition of the flexible drive member and can output an appropriate signal when the condition of the flexible drive member has exceed a pre-defined value. Further, the system and method can detect a variety of other undesired conditions in the operation of an engine and/or the relative angular position information can be used to alter operation of the engine to improve the engine's operating efficiency and/or reduce the emissions created during operation of the engine.
    Type: Application
    Filed: June 13, 2007
    Publication date: September 16, 2010
    Inventors: Zbyslaw Staniewicz, Terry P. Cleland, Gary J. Spicer, Jacek Stepniak
  • Patent number: 7427926
    Abstract: Motion detection notification is described. In an embodiment, a motion detector in a portable device detects a motion of the device and issues an activation signal when the detected motion has a magnitude greater than a preset threshold. A detection notification component in the portable device then receives the activation signal and initiates communication with an additional device that detects a corresponding motion to the motion of the portable device and is configured for communication with the portable device.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: September 23, 2008
    Assignee: Microsoft Corporation
    Inventors: Michael Sinclair, Kenneth Hinckley, Darko Kirovski, Gideon Yuval, Tom Blank
  • Patent number: 7260733
    Abstract: In a distributed control system, a first electronic control unit sends trigger information to a second electronic control unit. The trigger information includes a timing that triggers the second electronic unit to obtain second sensor information from a second sensor. The second electronic control unit is designed to receive the trigger information, and obtain, at the timing of the trigger information, the second sensor information from the second sensor. The second electronic unit is configured to send, to the first electronic control unit, the obtained second sensor information.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: August 21, 2007
    Inventors: Takahiro Ichikawa, Takashi Nakano, Shinichi Hayashi
  • Patent number: 5949352
    Abstract: A system for transmitting a radio-frequency signal from a contact detecting probe (1), powered by a battery (4), to a remote interface (11), that includes the transmitting, by way of coded serial signals, of messages containing information regarding the state of the probe, the level of charge of its associated battery, and other possible control and identification information. In order to guarantee the repeatability of the delay time that cannot be avoided in the transmission of the change of state of the probe, the bit periods of the single bits that form the message are changed, with respect to a nominal bit period (TN) of the serial signal, on the basis of the delay or the advance at which there occurs the change of state, with respect to a theoretical instant (C0) pre-set within the nominal bit period.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: September 7, 1999
    Assignee: Marposs Societa'Per Azioni
    Inventor: Andrea Ferrari
  • Patent number: 5030942
    Abstract: During monitoring of the driveline of an agricultural implement in respect of overloading and the degree of loading, from a first occurrence of slip, the slip revolutions occurring during a measuring cycle are added up. If the number of slip revolutions exceeds a permissible number of slip revolutions, a signal is generated indicating an overloading condition, a new measuring cycle beginning upon release of the signal to be able to take into account the effects resulting from a change in the behavior of the tractor driver, the nature of the signal being changed responsive to the speed differential between the input speed and output speed of a friction coupling permitting relative rotation.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: July 9, 1991
    Assignee: Jean Walterscheid GmbH
    Inventors: Hans J. Langen, Clemens Nienhaus
  • Patent number: 5010318
    Abstract: A malfunction detecting system issues an alarm signal when a torque converter turbine speed measuring device is out of order.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: April 23, 1991
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Hiroshi Yamaguchi
  • Patent number: 4897635
    Abstract: A synchronization indicator for a pair of rotating devices compares pulses generated by the two devices cyclically respectively pro-portional to their rotary speeds by using a predetermined count of one set of pulses to determine the then count of the other set and uses the count of the other set to cyclically provide a progressive indication of relative speed of the devices.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: January 30, 1990
    Inventor: Frederick V. Topping
  • Patent number: 4549163
    Abstract: Speed detectors are provided for detecting speeds of each of the four wheels of a vehicle. An electric circuit is provided to compare the speeds of all wheels and to turn on at least one lamp when a difference between individual wheel speeds is detected, whereby slipping of wheels is indicated.
    Type: Grant
    Filed: November 18, 1981
    Date of Patent: October 22, 1985
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Tetsuo Satoh, Masaaki Ohgami, Shoji Ogata
  • Patent number: 4499450
    Abstract: An electromagnetic clutch has a drive member secured to a crankshaft of an internal combustion engine, and a driven member adjacent to the drive member. The system comprises a circuit for detecting the difference between numbers of revolutions of the drive member and driven member, a comparator for producing an output when the difference is higher than a reference value, a timer operated by the output of the comparator, and a warning device such as a buzzer operated by the signal from the timer when a predetermined time elapses. Thus, when the clutch slips, the warning signal is generated. Further, a circuit for changing clutch engaging characteristics is provided to be operated by the output of the comparator for preventing the overheating of the clutch.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: February 12, 1985
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Fujio Makita
  • Patent number: 4430647
    Abstract: In order to monitor the correct mounting of a rotation transducer on a rotary part, the output signal of the rotation of the indicator is caused to produce a first pulse at a particular angular position. An additional reference mark transducer is coupled to the rotary part to produce a second pulse for timing comparisons with the first pulse. Mechanical slippage of the rotation transducer on the rotary part can then be detected when one of the pulses is present without the other, and the failure of either of the transducers to operate can also be detected. The device is useful for assuring reliable operation of the rotation transducer controlling fuel injection in a Diesel engine.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: February 7, 1984
    Assignee: Robert Bosch GmbH
    Inventor: Heinz Moller
  • Patent number: 4426641
    Abstract: From the viewpoint of the preventive maintenance operation of a rotary machine, it is a very important subject to monitor the shaft vibration of the rotary machine and grasp the operating state of the machine. This invention relates to input processings in the case of executing the frequency analysis of a shaft vibration signal by digital processings.This invention describes the rotational frequency synchronization of a sampling frequency, the phase synchronization of the rotary machine to a reference phase, the relationship between an analytical wave number and a sample nunber, etc. in that case.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: January 17, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Nobuo Kurihara, Yasuo Morooka, Mitsuyo Nishikawa, Kiyoshi Miura, Yoshitoshi Nagahashi
  • Patent number: 4263578
    Abstract: An A.C. voltage picked up from the alternator driven by an internal combustion engine is converted into a pulse train signal so that the number of the pulses is counted for a period of time defined by a reference timing signal produced in synchronization with the rotation of the crankshaft of the engine. When the number of the pulses reaches a predetermined value during the period of time, a counter produces an output signal to indicate that the slipping rate of the belt is within a tolerance. On the other hand, when the number of pulses is less than the predetermined number, the counter does not produce an output signal (indicating that the slipping rate is over the tolerance). The output of the counter may be averaged over a plurality of measuring times.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: April 21, 1981
    Assignee: Nissan Motor Company, Limited
    Inventors: Takao Fukuhara, Kunihiro Saito
  • Patent number: 4193059
    Abstract: The indications of attitude indicators at two different indicating locations that are indicating the same parameter but actuated from different sources, are monitored for the same indication by electrically interconnecting two transolvers that are mechanically coupled to the respective attitude indicator at each location. A monitor, at one indicating location, furnishes the excitation for the transolver at the other location and by the magnitudes of the sine and cosine outputs of the local transolver furnishes flag indication of any system defects of either indicator at each location.
    Type: Grant
    Filed: June 15, 1978
    Date of Patent: March 11, 1980
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Richard L. Harris
  • Patent number: 4106972
    Abstract: The velocity compensator disclosed herein measures the velocity of an article being moved toward an apparatus which is to perform a work operation on the article. The velocity compensator then provides an actuation signal to the apparatus at an appropriate instant so that the actuator will have sufficient time to perform the work operation on the article as it is moved along.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: August 15, 1978
    Assignee: Label-Aire Inc.
    Inventor: Donald L. Caudill
  • Patent number: RE30868
    Abstract: A paper roll diameter sensing device for use with a paper splicing apparatus is disclosed which gives the output signal when the diameter of an unrolled paper roll is reduced to a predetermined diameter so that the running paper web may be spliced to the leading end of a new paper roll.
    Type: Grant
    Filed: August 9, 1978
    Date of Patent: February 16, 1982
    Assignee: Rengo Co., Ltd.
    Inventor: Yasuharu Mori