61results about How to "Loss of data" patented technology

A communication system includes a first wireless communication device disposed onboard a vehicle system having two or more propulsion-generating vehicles that are mechanically interconnected with each other. The communication system also includes a controller configured to be disposed onboard the vehicle system and operatively connected with the first wireless communication device in order to control operations of the device. The controller is configured to direct the first wireless communication device to switch between operating in an off-board communication mode and an onboard communication mode. When the first wireless communication device is operating in the off-board communication mode, the device is configured to receive remote data signals from a location that is disposed off-board of the vehicle system. When the first wireless communication device is operating in the onboard communication mode, the device is configured to communicate local data signals between the propulsion-generating vehicles of the vehicle system.

In a method of facilitating handover of a mobile communication device from a source node to a target node, the method includes buffering received user data packets in the target node during handover prior to sending to the mobile device.

A method and system for implementing a high availability and high performance database cluster are disclosed. The method comprises: installing a distributed block device replication software, a high availability cluster component, and a dependent package of database multi-master software on a host and a backup machine; building a distributed block device replication software environment in the cluster for synchronizing data of the backup machine with the host; building a high availability cluster component environment in the cluster; building a database multi-master environment among nodes of the host, the backup machine and a slave; and defining a resource on the host and the backup machine so that the host and the backup machine are switchable to each other and the slave can access database services provided by the host and the backup machine to provide uninterrupted database cluster services.

A flow control server forecasts a fluctuation in the traffic on a network to be controlled, on the basis of an information set on itself and a result of searching information on the Internet. The flow control server issues a flow control command to a management server so as to prevent a congestion in the network on the basis of the forecast. The management server controls a routing information of each router on the basis of the flow control command from the flow control server, and sends out a routing control command to each router based on the control. Each router carries out the routing control by setting its own routing information on the basis of the routing control command received from the management server, in order to realize the flow control.

When a storage system receives a request from a host computer to read data from a logical unit, the storage system selects a logical device from which data is to be read, in accordance with the power supply status and power-off time for each logical device allocated to the logical unit, turns on the power supply for the selected logical device, and reads data from that device. When the storage system receives a request from a host computer to write data to a logical unit, it turns on the power supply for each logical device allocated to the logical unit and performs multiplex-writing of data for each logical device.

An apparatus for monitoring and measuring the electrical, thermal and mechanical operating parameters of high voltage power conductors. A toroidal shaped housing, which can be mounted onto an energized conductor, contains all of the necessary electrical instruments to monitor the parameters associated with the conductor. Moreover, the housing includes the processing capability to analyze disturbance and fault events based on these parameters.

The invention relates to methods of using a trainable software module used in the handover procedure employing the location based information for the self optimization of wireless communication networks, in particular for the self optimization of cellular mobile networks. Embodiments of the invention address the problems of radio link failures and rapid handovers immediately after transferring a wireless appliance from one base station apparatus to the other at certain cell border locations by evaluating which base station apparatus a wireless appliance should have its wireless connection transferred to using either a database or a trainable software module.

A cable organizer box for the maintenance of cables connecting computer workstations and peripherals, including power supplies, is described. The system comprises a specially adapted box that attaches via a removable top surface to the underside of a table or desk. The box has a hinged wall that opens easily for the insertion of wires, cables, and the like. The hinged wall can then be secured in the closed position. The box is easily installed and removed, and is reusable at a new location.

A handover control system in a mobile communication system includes;a first handover processing unit for controlling forwarding of user data from a source radio base station to a target radio base station in handover processing caused by movement of a mobile communication terminal;a second handover processing unit for controlling transmission of the user data from an upper layer node to both the source radio base station and the target radio base station in the handover processing; anda control unit for selecting activating either the first handover processing means or the second handover processing means according to a preliminarily requested communication quality for the user data.

A wavelet transform (WT) is applied to a data stream of high definition video frames, each comprising one or more data channels digitally representing the same image. A WT is applied to each channel. Visual-quality preserving data filters and data substitution techniques are selectively applied that typically lead to at least 90-to-1 compression of the final encoded video frame. Image edge data is extracted and preserved and image noise is reduced to enhance compressibility. After the first WT, primarily low frequency (LL) image data is retained. With each later WT, more non-LL data is retained. Temporal sequences of LL images that result from the final iteration of the wavelet transform are compressed by means of a chain of invertible differenced images. Any color space can be used. Cross-channel conditional substitution is applicable. Complete multiresolution scalability is incorporated into the encoded product. Extra-high definition video encoding is also achievable.

A method performed by a source long term evolution (LTE) base station includes buffering downlink user data packets for transmission to a mobile communication device in a buffer, sending the downlink user data packets to the mobile communication device, receiving uplink user data packets from the mobile communication device, receiving a handover response indicating a handover of the mobile communication device to a target base station, and selectively forwarding the downlink user data packets from said buffer to the target base station depending upon an RLC status report or hybrid automatic repeat request (HARQ) feedback information. In response to the receiving the handover response, the source LTE base station stops the sending the downlink user data packets to the mobile communication device and transmits a handover command to the mobile communication device.

An apparatus and method for analog-to-digital conversion and peak detection includes at least one stage, which includes a first switch, second switch, current source or capacitor, and discriminator. The discriminator changes state in response to a current or charge associated with the input signal exceeding a threshold, thereby indicating whether the current or charge associated with the input signal is greater than the threshold. The input signal includes a peak or a charge, and the converter includes a peak or charge detect mode in which a state of the switch is retained in response to a decrease in the current or charge associated with the input signal. The state of the switch represents at least a portion of a value of the peak or of the charge.

In one embodiment, a first storage device and a second storage device form a mirror. When the first storage device loses synchronization with the second storage device, data present in the second storage device but not in the first storage device are identified. The identified data are then copied to the first storage device. In one embodiment, a method of rebuilding data in a storage device includes the act of replacing a failed storage device with a replacement storage device. Up-to-date data for the failed storage device, which may be stored in a corresponding mirror, may then be copied to the replacement storage device. Thereafter, the replacement storage device and any other storage devices that have lost synchronization with their mirror are resynchronized.

A one-way data transmission and reception system and method, which mitigate the problem of a buffer overflow that may occur on a reception system while also mitigating the problem of data loss caused by a link error that may occur in the unidirectional line of a physical one-way data transmission system. The one-way data transmission system includes a first interface unit connected to a first network. A second interface unit is unidirectionally connected to a reception system connected to a second network. An interface integration module unit transmits a delayed Transmission Control Protocol (TCP) Acknowledgement (ACK) frame to a TCP session established with a device of the first network unit through the first interface unit, and transmits one or more identical data frames to the reception system through the second interface unit.

At least one network device that moves storage blocks based upon a session layer or higher protocol set is employed to facilitate communication between at least one host and at least one target storage device. The at least one network device may include a server and a switch. Transactions related to data storage access are expressed in a non-network protocol and transmitted via a network protocol data unit across at least a portion of the network by employing encapsulation. An adapter card associated with the data storage unit is employed to extract the non-network protocol transaction. Multiple, mirrored data storage units that are separated by relatively large physical distance may be employed to reduce the likelihood of catastrophic data loss due to an event such as a fire. Further, READ transactions may be facilitated by preloading data storage units with READ metadata for subsequent transmission to a client device to enable expedited access to data stored on the data storage units.

Transmission delays due to the buffering of data packets are registered for the purpose of regulating a jitter buffer. Weighted mean delay values are continuously derived from registered transmission delays, with a shorter transmission delay receiving a higher weighting than a longer transmission delay. A read-out speed of the jitter buffer is then regulated as a function of the continuously derived weighted mean delay values in such a way that the weighted mean delay values are adjusted as a regulating variable to a predefined desired delay.

To provide a wireless communication device that can suppress data loss due to reduction in line speed in accordance with hand-down, to thereby improve throughput, and a control method thereof. A cellular telephone device 1 that is connected to a PC 100 and provides data packets received from a server 300 via wireless communication to the PC 100, includes: a wireless communication unit 40 that can establish data communication by connecting to the server 300 both in LTE and CDMA2000_1x that is of lower speed than LTE; and a control unit 30 that, in a case in which, during communication by the wireless communication unit 40 using LTE, communication is handed down to CDMA2000_1x due to reduction in communication quality to a first threshold, reduces an RWIN to be notified to the server 300 from the size before hand-down.

There is provided a method executed in a cluster system comprising a first computer and at least one second computer that stores the data transmitted from the first computer. The method comprising the steps of: judging whether the failure-occurred processing is restarted by the first computer or the failure-occurred processing is switched over by the second computer based on the system information; receiving the stored data from the second computer and re-executing the processing in which the failure has occurred by the first computer, in the case of which it is judged that the processing in which the failure has occurred is restarted by the first computer; and executing, by the second computer, the processing in which the failure has occurred, in the case of which it is judged that the processing in which the failure has occurred is switched over by the at least one second computer.

Disclosed herein is a method for preventing a loss of trip data of a vehicle during a substantial instantaneous voltage drop in a vehicle cluster. In the method, the trip data calculated by a processor of a trip computer are stored in a clear region of a memory and the trip data stored in the clear region are backed up in a nonvolatile region of the memory when new trip data is generated. The processor collects the trip data backed up in the nonvolatile region to rewrite the trip data in the clear region after a substantially instantaneous voltage drop occurs.

The invention relates to an image carrier for the storage of X-ray information, and includes an electronic memory in which data can be stored. In order to reduce the danger of loss of data it is envisaged that the image carrier comprises a mark that represents at least a part of the data stored in the electronic memory.

The invention relates to a method for transmitting communication data in a communication system (CSY) between a calling first communication unit (IPPA) and a called second communication unit (IPPD), wherein, in a first step a primary connection is set up starting from the first communication unit (IPPA) via at least one node unit to the second communication unit (IPPD) with transmission of addressing data of the communication units (IPPA,IPPD) and node units participating in the setup of the primary connection. Following this, the first communication unit (IPPA) and / or a first node unit disposed along the primary connection which have a valid addressing data element are registered as the ingress node. Furthermore, the second communication unit (IPPD) and / or a last node unit disposed along the primary connection which have a valid addressing data element are registered as the egress node. With the embodiment of a secondary connection (DMC) between the egress and the ingress node via a network which is available in the communication system (CSY), communication data is finally transmitted via the secondary connection (DMC).

A system for managing devices comprises a first device comprising a first interface and a second device comprising a second interface. The second interface is coupled to the first interface using a communication cable that comprises both power wires and data wires. The second device further comprises a power controller coupled to the second interface. The power controller detects at least one of a voltage or a current associated with the power wires of the communication cable. The power controller turns on a power supply associated with the second device in response to detecting at least one of the voltage or the current. The second device further comprises a data communication module coupled to the second interface. The data communication module communicates data between the first device and the second device using the data wires of the communication cable.

The invention provides a method for managing data transmission performed in a radio network controller during UE handover procedure. The method is performed in a RNC having a distributed architecture, and comprises the following steps: acquiring a handover request transmitted by UE from a first ATM interface board, by one of the plurality of radio signaling management boards; creating mapping between one of the plurality of data transmission management boards and a second ATM interface board, by the radio signaling management board, said data transmission management board having mapping to the first ATM interface board before handover; and informing UE of performing data transmission between the data transmission management board and the second ATM interface board, by the radio signaling management board. When UE executes handover between two cells dominated by the same RNC, the method avoids frequent shifting of data of the same UE between different data transmission management boards, thereby decreasing the load in the procedure of transmitting and handling of system signaling, improving effective handling capability of the system, and additionally reducing the probability of losing data packets of the system.

In audio / video (AV) capture, two video streaming adapters (VSAs) receive an original input video signal and a compressed input video signal respectively to generate an uncompressed video streaming and a compressed video streaming respectively. The uncompressed video streaming and the compressed video streaming are transmitted to an external device by way of time division duplex. An interlock mechanism prevents concurrent transmission of the uncompressed video streaming and the compressed video streaming, so that the loss of real-time video streaming is reduced.