85results about How to "Reliable synchronization" patented technology

In the case of a fitting for a vehicle seat, in particular for a motor vehicle seat, having a first fitting part (11), a second fitting part (12) connected by a gear mechanism to the first fitting part (11), a driving ring (26), which at least partially defines an eccentric (27, 29) and is mounted rotatably in the first fitting part, for driving a rolling movement of the second fitting part (12) on the first fitting part (11), and a drivable driving bushing (21) which is mounted rotatably, the driving bushing (21) and the driving ring (26) are connected to each other in a form-fitting manner by a transmission profile (24′, 26′).

Error correcting section holds PTS(n−1) and DTS(n−1) of the frame immediately preceding the current frame and the most recent CPTS as determined to be correct in the past. The time stamp of the current frame is determined to be incorrect if (1) CPTS>PTS(n) which is the current frame or (2) CPTS<PTS(n) and greater than the time interval of time information B_TS(n)−B_TS(n−1) plus a reference time (e.g., the multiple of the standard frame interval 33 msec of moving images using 30 frames per second). If the PTS(n) of the current frame is correct, it is used as reproduction timing and updates the CPTS, using the PTS(n). If, on the other hand, the PTS(n) of the current frame is incorrect, it is not used and the time obtained by adding the CPTS and B_TS(n)−B_TS(n−1) is used as corrected PTS(n).

In an automatic transmission position control by a motor, it is determined whether the present instant belongs to a starting period, that is, the present instant is immediately after resetting of a control unit or application of power to it. If it is the starting period, an actual shift position that is detected from an output of an output shaft sensor for detecting a rotation position of a motor is set as an instructed shift position. With this measure, even if the control unit is reset for a certain reason while the vehicle is running, the instructed shift position is not changed in association with the resetting. This prevents trouble that the shift position is switched contrary to the intention of the driver, whereby the reliability of a position switching control can be increased.

The invention relates to a massive data synchronization system and method. The synchronization system comprises an incremental data input interface, a full data input interface, a storage module, a filter module and a data output interface, wherein the incremental data input interface is used for receiving the incremental data of the changed data of a resource system from an incremental data interface of the resource system, and the full data input interface is used for calling a full data interface of a target system and receiving a full data identification code from the target system; the storage module is used for storing the received incremental data and full data identification code, and the filter module is used for filtering the incremental data based on the full data identification code, and using the incremental data corresponding to the full data identification code as filtered data; and the data output interface is used for submitting the filtered data as synchronous data to a synchronous data interface of the target system, and the filtered data is stored in the target system. Through the system and the method, the massive data can be synchronized efficiently, reliably and fast.

An atrial defibrillator has a stimulation pulse generator to generate pacing pulses, a sensing stage for sensing intrinsic ventricular events, (an R-wave having an amplitude). It also includes a defibrillation shock generator to generate an atrial defibrillation shock, an atrial fibrillation detector adapted to detect an atrial fibrillation, and a control unit connected to the stimulation pulse generator. The sensing stage, the atrial fibrillation detector, the defibrillation shock generator, and control unit are adapted to trigger an atrial defibrillation shock after detection of an atrial fibrillation and synchronous with a sensed or a paced ventricular event. The control unit is adapted to compare a sensed R-wave amplitude with a reference R-wave amplitude and synchronize an atrial defibrillation shock with a paced ventricular event or a sensed ventricular event if the sensed ventricular event is an R-wave having an amplitude of at least 60% of the magnitude of the reference amplitude.

A system and method for asynchronous data communication over a cellular communications network that allows the transmission of different types of data frames over a voice channel using a vocoder. The data frames include a synchronization signal and data segment, with the synchronization signal being selected in accordance with an attribute of the data segment so that, upon receipt of the data frame, the synchronization signal can be used by the demodulating modem to determine not only where the data segment begins, but also to identify what type of data segment is in the received data frame. The synchronization signals used have low cross-correlation and an auto-correlation function that approximates a unit impulse function to provide reliable transmission through the vocoder.

A microfluidic device is provided, the microfluidic device comprising: a plurality of chambers (3, 4, 5, 6) adapted for performing chemical, biochemical, or physical processes and a flow path (9) connecting the plurality of chambers (3, 4, 5, 6) adapted for accommodating at least one magnetic particle (7) subsequently moving through the plurality of chambers The plurality of chambers (3, 4, 5, 6) are separated by at least one valve-like structure (10) adapted to enable passing-through of the at least one magnetic particle (7) from one of the plurality of chambers to another one of the plurality of chambers. At least one delaying structure (11, 111) adapted to delay movement of the at least one magnetic particle (7) along the flow path is provided.

A method for driving a planar light source device is provided. The planar light source device includes (a) a plurality of planar light source units to light a color LCD device from the back, each planar light source unit including a red LED, a green LED, and a blue LED; and (b) a driving circuit to perform ON / OFF control of the red LED, the green LED, and the blue LED included in each planar light source unit on the basis of pulse-width modulation. The method includes adjusting respective pulse-width modulation unit clocks CLR-unit, CLG-Unit, and CLB-Unit in each planar light source unit to long or short by increasing or decreasing the number of frequency division cycles of a system clock in the driving circuit.

A light grid is provided for the detection of objects in a monitoring region having a transmitter unit comprising a plurality of light transmitters and a receiver unit comprising a plurality of light receivers in which respective pairs of light transmitters and light receivers associated with one another and bounding the monitoring region can be activated in succession in time in dependence on a synchronization signal transmitted between the transmitter unit and the receiver unit, with at least one light guide being provided for the transmission of the synchronization signal.

An integrated, pervasive service management system of a service organization for a mobile workforce and vehicle that includes an application server to coordinate communications between the system and field service entities that include service technician communication devices. The system also includes an integration hub server to communicate between the service optimization suite and back office systems of the service organization and a universal service model to automatically coordinate the details of a service contract concerning service to be provided to customers of the organization. A optional service optimization suite to provide integrated, optimized service can also be provided.

The invention provides a synchronous access method carried out between first communication equipment and second communication equipment in frequency hopping wireless communication, related communication equipment and a related communication system. The first communication equipment adopts N frequency hopping channels to carry out frequency hopping in a predetermined frequency hopping sequence and at a predetermined frequency hopping time interval. The method comprises the following steps: the first communication equipment transmits a broadcast beacon on the N frequency hopping channels with M times of the predetermined frequency hopping time interval as a period, wherein the broadcast beacon carries general information including synchronization information, and M and N are natural numbers and are relatively prime; the second communication equipment receives the broadcast beacon on any frequency hopping channel among the N frequency hopping channels to obtain the synchronization information; and the second communication equipment and the first communication equipment carry out information interaction on to be accessed. By the adoption of the flexible, simple and easy-to-implement synchronous access scheme, efficient use of bandwidth and good anti-interference performance can be achieved, and fast and reliable synchronization can be carried out at very low power.

The present invention discloses an expandable distributed coordination service management method under a cloud platform, which comprises the steps of: initializing all nodes of a distributed cluster in an organization manner of middle node crossing forest; inquiring father member node and son member node information of each node of all member nodes according to a global network topology structure from a central management node; performing information synchronization and communication among all father member nodes and son member nodes according to a heartbeat mechanism; determining whether a member state variation information is received from other member nodes by each member node; if the member state variation information is received, further determining whether the member state variation information indicates number reduction or increase of members; and if number reduction of members is determined, after the member node receives member state variation information which indicates number reduction of members, packaging a piece of member state variation information according to heartbeat interruption, and furthermore transmitting the member state variation information to the central management node. According to the expandable distributed coordination service management method, service updating efficiency does not reduce rapidly in the expanding process, and therefore the expandable distributed coordination service management method is more suitable for a large-scale cloud platform and data processing system.

The invention relates to a permanent magnetism mechanism, which comprises an upper case body and a lower case body, wherein, a movable core is arranged between the upper case body and the lower case body; the upper part of the movable core is provided with three upper guide levers. Both sides of the upper guide lever positioned at the middle are provided with a tripping spring and a tripping spring adjusting screw. The upper part of the upper guide lever is provided with an insulator and a contact spring. The position where the lower part of the movable core corresponds to the upper guide lever is provided with a hand trip gear, and both sides of the movable core are provided with a closing coil and a permanent magnet. The invention has the advantages that linear drive is realized on a three step switch tube and the synchronicity and the operability of the three step action are more reliable; the adjustment of the speed of a trip also can be realized; the structure is simple; the cost is low. The invention can be widely used for a breaker and a contactor of a mine feed system, and the environment of the mine feed system is vile, and the mine feed system has high requirement for the reliability. Because the invention only adopts one closing coil, the space of the closing coil is increased. The number of turns of the closing coil can be increased on the premise that the coil diameter is the same or greater than the diameter of the primary coil. The invention can realize frequent electrification for a long time and can not be burnt under the condition that ampere-turn is invariable or the ampere-turn is properly enhanced.

A method for synchronizing a first control device and a second control device of a redundantly structured automation device that controls a technical process is provided. The first control device and the second control device are connected to each other. The first and second devices include functional components which implement the functions that control the technical process. The first control device performs the functions in the functional components for controlling the technical process in cycles, thus creating internal states of the functional components. During control of the technical process by the first control device, information about the internal states of the functional components is transferred, distributed over several cycles, to the second control device. The second control device assigns the transmitted information about the internal states to the functional components. In addition, a corresponding redundantly structured automation device is provided.

Systems and methods for providing frequency compensation over a wide range of frequency drift are shown. The preferred embodiment utilizes a sweep mode function to provide frequency compensation over a range of frequency drift broader than the frequency drift accommodated by a phase lock loop, without increasing the noise characteristics of the phase lock loop. Accordingly, the preferred embodiment operates in a phase lock loop mode while frequency drift can be compensated for by the lock range of the phase lock loop circuitry. The preferred embodiment operates in sweep mode to step through a range of offset frequencies to position the phase lock loop mode where frequency drift can be compensated for by the lock range of phase lock loop circuitry. Additionally, a preferred embodiment of the present invention includes a drift mode in order to monitor frequency offset information, such as may be used in performing sweep mode functions and / or other control or management functions.

A scanning-type image display device includes: a light source section; a horizontal scanner; a vertical scanner, and a vertical scanner control section in such manner that, when a discrepancy occurs between a target scan line number and a scannable line number, and when a difference obtained by subtracting of the target scan line number from the scannable line number is a positive value, the vertical scanner control section controls the vertical scanner so as to put vertical scanning on standby within a time range from a point of time at which horizontal scanning is completed in a first frame to a point of time at which a horizontal scanning start signal corresponding to a vertical synchronizing signal of the video signal in a second frame is input, and restarts the vertical scanning in synchronization with an input timing of the horizontal scanning start signal.

A wireless communication device includes: a first transmission portion that transmits a radio signal using a plurality of frequency bands in accordance with a first frequency hopping pattern; a second transmission portion that transmits a radio signal using a plurality of frequency bands in accordance with a second frequency hopping pattern that differs from the first frequency hopping pattern; and an adjustment portion that adjusts a start timing of the second frequency hopping pattern such that a time slot of each of the plurality of frequency bands used by the first transmission portion and a time slot of each of the plurality of frequency bands used by the second transmission portion are not the same.

The invention relates to a cross-correlation and autocorrelation cascade based frame synchronizing method, which includes: 1) repeatedly modulating a synchronizing sequence in length of N twice at a transmitting end to serve as a frame header of a physical layer frame, transmitting radio signals to a receiving end through a signal generator, sampling the radio signals to be a discrete sequence after the receiving end receives the radio signals; 2) subjecting the received discrete sequence to sliding cross-correlation operation through the local-storage synchronization sequence at the receiving end and obtaining a first secondary correlation output sequence; 3) subjecting the first secondary correlation sequence in the step 2) at the receiving end to obtain a second secondary correlation output sequence; and 4) finishing frame synchronization since any moment is the starting moment of the physical layer frame if sampling point value of the first secondary correlation output sequence at any moment is larger than a set threshold value output by first secondary correlation and a sampling point value in the second secondary correlation output sequence is larger than a set threshold value output by second secondary correlation.

A satellite communications system provides an information channel between remotely located transmitters and receivers. A virtual satellite system provides the same service, but divides the signal either in power or in data content into subchannels such that any particular signal is conducted to the intended receiver via a plurality of traditional satellite channels. The receiving terminal accepts the plurality of signals simultaneously from a possible plurality of satellites, combining the subchannels comprising the virtual channel into the original signal content as if conducted via a single channel. The receiving antenna system receives satellite subchannel signals from a plurality of directions using multiple antennas or a single antenna with multi-direction capability. Prior to signal combining, the receiver necessarily time-synchronizes the plurality of subchannels by introducing time delay in some channels before combining the subsignals into the original composite. A timing signal present in the virtual satellite system assists the receiver in determining the amount of delay to apply to each incoming signal. The timing signal is either a separate carrier or an additional modulation on the existing information-bearing carrier.

The invention provides a remote data synchronization method and device for a database. The remote data synchronization method comprises the steps of acquiring service data containing updated data updating events, generating event versions corresponding to the data updating events, packaging the service data and the event versions into event objects, transmitting the event objects to service applications of an opposite terminal to update an opposite-terminal database according to the service data when the service applications of the opposite terminal determines that the data updating events are effective according to the event versions. The remote data synchronization method and the device achieves rapid and reliable data synchronization.

A record carrier has a servo track (4) indicating an information track (9) intended for recording information blocks. The servo track (4) has a periodic variation of a physical parameter at a predetermined frequency and modulated parts for encoding position information at regular intervals. The modulated parts start with a bit sync element and are of a data type having a data bit element, or of a word sync type having a word sync element. The word sync element and the data bit element are modulated according to a same predetermined type of modulation of the periodic variation. The effective strength of a modulated element is the number of periodic variations that are substantially different and available for detection of that element. The effective strength of the word sync element and of the data bit element are equal.

The invention relates to a winch device with a first winch having a first winch drum and a second winch having a second winch drum. There is also a synchronizing device through which a rotation of the first winch drum can be synchronized with the rotation of the second winch drum. Further, a differential shaft with a first synchronous wheel and a second synchronous wheel is provided, said first synchronous wheel being connected via a first rotary connection device to a first drive and the second synchronous wheel is connected via a second rotary connection device to the second drive.

The invention provides an automatic cloth cutting mechanism and belongs to the technical field of sewing equipment. The problems that an existing cloth cutting mechanism is complex in structure and high in cost are solved. The automatic cloth cutting mechanism comprises a cloth cutting motor seat and a cutter groove disc, a cutter assembly with a cutter and a cloth cutting motor for driving the cutter assembly to work are arranged on the cloth cutting motor seat, and a first driving part and a rotary motor mounting seat connected with the first driving part are further included, and a cutter rotary motor is arranged on the rotary motor mounting seat. The cutter groove disc is connected with the cloth cutting motor seat through a transmission structure, an output shaft of the cutter rotary motor is fixedly connected with the cloth cutting motor seat and drives the cloth cutting motor seat and the cutter groove disc to rotate, and the first driving part drives the rotary motor mounting seat and the cloth cutting motor mounting seat to vertically move. The automatic cloth cutting mechanism has the advantages of achieving free curve cloth cutting and being simple in structure, good in stability and low in cost.

An image processing apparatus that is capable of more reliably synchronizing an execution state of a job flow set in a plurality of machines without using a management server. In the digital multi-function peripheral, a job flow list management section receives a job flow setting file in which a job flow to be executed is described, and a job execution section executes the job flow based on the received job flow setting file. A communication section notifies other digital multi-function peripherals of execution of the job flow when the job flow is executed, and notifies the other digital multi-function peripherals of termination of the job flow when the execution of the job flow is terminated.