Abstract: Disclosed are constructions of WOM codes that combine rewriting and error correction for mitigating the reliability and the endurance problems typically experienced with flash memory. A rewriting model is considered that is of practical interest to flash memory applications where only the second write uses WOM codes. The disclosed WOM code construction is based on binary erasure quantization with LDGM codes, where the rewriting uses message passing and has potential to share the efficient hardware implementations with LDPC codes in practice. The coding scheme achieves the capacity of the rewriting model.

Abstract: A method for enabling coexistence of multiple communication modes in mobile terminal and a mobile terminal thereof are provided. The method includes: when the mobile terminal is currently working in a first communication mode, if the mobile terminal receives a first signal of a second communication mode in a first frequency band, determining whether to continue working in the first communication mode or to shift to work in first frequency band of the second communication mode based on a preset priority rank. Accordingly, interferences between multiple wireless communication modes in a mobile terminal can be reduced.

Abstract: An encoder including a computer readable storage medium storing program instructions, and a processor executing the program instructions, the processor configured to generate a k-bit key, where k is a positive integer, estimate an upper bound of a number of eavesdropped links, encode each bit of the k-bit key using a random matrix of a selected rank, and transmit the encoded k-bit key through a network that performs linear operations on packets.

Abstract: A circuit interruption apparatus, for an electrical network, comprising a circuit interruption device that is operatively connectable at a source side to a source of the electrical network and at a back side to a load of an electrical network. The circuit interruption device when closed permits and when open inhibits the current flow between the source side the back side,. The current interruption device is configured to open when a current flowing therethrough meets or exceeds a fault current threshold. The circuit interruption apparatus also includes a fault current level determination unit that is configured to determine a predicted fault current level as a function of measured current and voltage values at the circuit interruption device before and after a variation in the current and voltage values at the circuit interruption device that result from a change of load at the back side of the circuit interruption device.

Abstract: An encoder including a computer readable storage medium storing program instructions, and a processor executing the program instructions, the processor configured to generating a message by aggregating a plurality of incoming packets, constructing an encoded message using the message and a random matrix, constructing of a hash using a shared secret, and transmitting the encoded message and the hash to a destination, through a network that performs network coding operations.

Abstract: A decoder deployed in one or more terminals, includes a computer readable storage medium storing program instructions, and a processor executing the program instructions, the processor configured to receiving a noisy message and a noisy hash from the network, searching for a pair of matching candidates for the hash and message from two row spaces of noisy message vectors using a shared secret with an encoder, and outputting, by the decoder, a decoded message if the searching is successful.

Abstract: Disclosed are low-complexity schemes to store information in a distributed manner across multiple nodes of a computer system. The schemes are resilient to node failures and resistant to node eavesdropping. The disclosed schemes may be used in conjunction with RAID systems, and when used in such systems may be referred to as“secure RAID”.

Abstract: Methods for distributed storage in accordance with embodiments of the invention enable secret sharing. One embodiment includes encoding source data using an encoding system to produce a plurality of sets of encoded data, where: the source data can be recovered from at least a portion of less than all of the plurality of sets of encoded data; and the source data cannot be recovered using less than a threshold number of the plurality of sets of encoded data; storing each of the plurality of sets of encoded data on a storage device from a set of storage devices on which encoded data is stored; determining a set of storage devices that are available using a decoding system, where the set of storage devices that are available does not include all of the storage devices in the set of storage devices on which encoded data is stored.

Abstract: Disclosed are constructions of WOM codes that combine rewriting and error correction for mitigating the reliability and the endurance problems typically experienced with flash memory. A rewriting model is considered that is of practical interest to flash memory applications where only the second write uses WOM codes. The disclosed WOM code construction is based on binary erasure quantization with LDGM codes, where the rewriting uses message passing and has potential to share the efficient hardware implementations with LDPC codes in practice. The coding scheme achieves the capacity of the rewriting model.

Abstract: A mobile terminal is provided. The mobile terminal includes: a base band processor; a main RF transceiver electrically coupled to the base band processor; a Balun unit adapted to receive single-ended RF signals, and convert the single-ended RF signals whose frequencies are within a preset range into differential RF signals; and a diversity RF receiver electrically coupled to the base band processor and the Balun unit, which is adapted to receive the differential RF signals converted by the Balun unit and process the differential RF signals to generate baseband signals to be processed by the base band processor. Accordingly, components required by a mobile terminal and cost of the mobile terminal can be reduced.

Abstract: A MIMO communication method and a MIMO system are provided. The method includes: a base band unit sending a control signal to a first RFFE unit or a second RFFE unit; based on the control signal, the first RFFE unit or the second RFFE unit implementing a processing to a RF signal transmitted from the RF transceiver unit; and a first antenna coupled to the first RFFE unit or a second antenna coupled to the second RFFE unit transmitting the RF signal which has been subjected to the processing. One RF transceiver unit is used to transmit signals in two communication modes, such that the number of the RF transceiver units in the MIMO system can be reduced, which means less system resource will be occupied.

Abstract: A method for enabling coexistence of multiple communication modes in mobile terminal and a mobile terminal thereof are provided. The method includes: when the mobile terminal is currently working in a first communication mode, if the mobile terminal receives a first signal of a second communication mode in a first frequency band, determining whether to continue working in the first communication mode or to shift to work in first frequency band of the second communication mode based on a preset priority rank. Accordingly, interferences between multiple wireless communication modes in a mobile terminal can be reduced.

Abstract: The present invention discloses a multi-mode signal transmission system and the transmission method thereof. The system comprises a transmitter, a selection device, a compensation device, and power amplifier modules. The transmitter comprises a Ramp Circuit connected to the transmitter and the power amplifier modules respectively. The selection device is configured between the transmitter and the power amplifier modules. The transmission method comprises: selecting a transmission module by the transmitter for transmitting the signal, the selection device strobes a transmission route between the transmission module and the power amplifier modules, and based on different transmission power parameters, the Ramp Circuit transmits different control signals to the power amplifier modules to adjust transmission gain of the power amplifier modules. The present invention has the purpose of improving the integration level of the chip and decreasing the board area and the difficulty of wiring.

Abstract: The present invention discloses a multi-channel signal transmission system and the transmission method thereof. The system comprises a transmitter, a selection device, a compensation device, and power amplifier modules. The transmitter comprises a Ramp Circuit connected to the transmitter and the power amplifier modules respectively. The selection device is configured between the transmitter and the power amplifier modules. The transmission method comprises: selecting a transmission channel by the transmitter for transmitting the signal, the selection device strobes a transmission route between the transmission channel and the power amplifier modules, and based on different transmission power parameters, the Ramp Circuit transmits different control signals to the power amplifier modules to adjust transmission gain of the power amplifier modules. The present invention has the purpose of improving the integration level of the chip and decreasing the board area and the difficulty of wiring.