43results about How to "Reduce the amount of redundant data" patented technology

According to the present invention there is provided a telecommunications system for providing a facility for communicating internet packet data in accordance with a first internet protocol (IPV6). The system comprises a user equipment, the user equipment including a first internet protocol stack operable in accordance with a first internet protocol (IPV6) and a second internet protocol stack operable in accordance with a second internet protocol (IPV4). The system includes a packet radio system (GPRS) network operable to communicate internet packet data in accordance with the second internet protocol (IPV4), and an inter-working. The inter-working unit is operable in association with the user equipment to represent internet packet data according to the first internet protocol (IPV6) as internet packet data according to the second internet protocol (IPV4) for communication via the packet radio system network (GPRS). The inter-working-unit is operable to represent internet packet data received from the packet radio system network (GPRS) in the form of internet packet data according to the second internet protocol (IPV4) as internet packet data according to the first internet protocol (IPV6) for communication to the user equipment. The inter-working unit acquires from the second internet protocol stack an address for representing the internet packet data according to the first internet protocol as internet packet data according to the second internet protocol. The inter-working unit also acquires from the first internet protocol stack an address for representing the internet packet data according to the second internet protocol as internet packet data according to the first internet protocol. A corresponding inter-working unit is provided for reciprocal communication of internet packet data to and from the packet radio system network (GPRS).Embodiments of the present invention can provide a facility for a user equipment to run application programs which require the use of internet protocol communications according to one internet protocol using a packet radio system network which has been arranged to communicate internet packet data according to a different internet protocol.

Transparent content addressable data storage and compression for a file system including providing a data structure that associates file identifiers and retrieval keys for memory blocks for storing file contents; storing in the data structure one or more file identifiers; providing a chunk of data comprising a quantity of input data of a file; retrieving a memory block from computer memory; searching for a segment of the chunk that matches the memory block; and if a matching segment is found: discarding the matching segment; providing a retrieval key for the memory block as a retrieval key for the matching segment; identifying an unmatched portion of the chunk that does not match the memory block; storing the unmatched portion; and providing a retrieval key for the unmatched portion.

A disk array for a storage system that includes a dual controller disk array and a server includes a disk frame and two controller nodes. Each controller node includes a switch, where a port of the switch is connected to a port of a switch of a peer controller node. Each controller node is configured to detect whether the peer controller node is invalid through the port. When it has been detected that the peer controller node is invalid, a local controller node enables the peer controller node to send, through the port of the switch of the peer controller node, received data from the server to a port of a switch of the local controller node.

The present application discloses a language recognition method, device and electronic device, belonging to the field of communication technology, and can solve the problem of low efficiency and success rate of information recognition of moving parts of a face by electronic devices. The method includes: obtaining a target light corresponding to a face part of an object to be photographed through an FPI multispectral component; according to the target light, obtaining a target image sequence of the target part through a real-sensing pixel sensor, where the target part is in motion in the face part The part of the state; according to the target image sequence, the language information corresponding to the target part is output. The embodiments of the present application are applied in the process of identifying the information of the moving part of the face by the electronic device.

The invention provides a safety Top-k checking method and device in a double-layer sensor network; the method comprises the following steps: receiving and storing first data reports sent by a sensor node Si in a same network unit, receiving a Top-k checking request sent by a base station, and determining a to-be-checked data report set from locally stored all first data reports according to a to-be-checked network unit ID, a to-be-checked time slot number and a to-be-checked sensor node set; ranking items (see formula in description) in the to-be-checked data report set from big to small according to EMOPE {di, j}, and determining Top-k data items according to a to-be-checked Top-k data item number k; determining the number ni of Top-k data items contained in each first data report RT<Si>in the to-be-checked data report set according to the Top-k data items; forming a second data report of each to-be-checked sensor node according to a perception data item number Mu i and the Top-k data item number ni, and carrying out data integrity detection for the checking result report. The method can protect data item and weight privacy, and can reduce inter-node communication overhead in thesame time.

The invention discloses a method for multiplexing transmission of digital audio in a multimedia broadcasting system, which comprises the following steps: after a broadcasting sending end removes a load head from an audio load to be transmitted, audio single-frames are extracted from the audio load to be transmitted; each audio single-frame is taken as the content of an audio unit, or one or more polyframes are formed by connecting the audio single-frames from heads to tails, and each polyframe is taken as the content of one audio unit; and audio data is multiplexingly transmitted to a broadcasting receiving end through a multiplexing protocol of the multimedia broadcasting system after at least one audio unit multiplexingly forms multiplexing subframes. The application of the method can remove unnecessary load heads when the multiplexing transmission of the audio data is realized, thereby reducing redundant data amount and saving precious bandwidth resources.

An embodiment of the present invention provides a method and device for network time correction, wherein the network time correction method includes: when an adaptive time correction instruction is received, obtaining historical time correction data before the current moment; The total difference of historical time correction corresponding to the time point; according to the total difference of historical time correction corresponding to each historical time point of correction, the total difference of the current time correction at the current moment is obtained through the preset algorithm; the total difference of the current time correction The difference between the total difference between the historical time correction and the latest historical time correction time point in the historical time correction time point is determined as the current time correction time difference value; according to the current time correction time difference value, adjust the current time correction time difference time to complete this self-adaptive time adjustment. Through this solution, the amount of redundant data in the network can be reduced on the basis of ensuring the accuracy of the device time.

This invention relates to a forward EC method in single-way broadcast document transmission including the following steps: 100) depacketizing the to-be-sent data into multiple data blocks and computing the check sum of each data block; 200) processing XOR operation to the said multiple data blocks and computing protection data blocks; 300) sending contents of the data blocks including the protection ones; 400) receiving the data blocks; checking if the acquired data blocks are correct and making identifications; 500) adding up numbers of error data blocks; if there is only one error data block which has been accepted as a protection block, then correcting the mistake; and 600) direct split joint is carried out to resume the data in light of the coding rule, if there is no data error.

The invention discloses a method for receiving a wireless data packet, which comprises the following steps: A: a receiving terminal obtains the corresponding code rate V according to the current link quality condition and the original data packet length L; B: the data length M in the same order, which needs to be received is estimated according to the code rate V and the original data packet length L; and C: after receiving the data to be received, which have the length of at least M, the receiving terminal decodes the data so as to obtain the original data packet. The terminal with good linkquality can select data volume according to the acceptable code rate of the terminal to receive and decode under the condition of not influencing the receiving of the terminal with poor link quality and reduce the received redundant data volume, thereby realizing the electric energy saving of the terminal with good link quality.