Disclosed is a method for the distributed storage and distribution of data. Original data is divided into fragments and erasure encoding is performed on it. The divided fragments are dispersedly stored on a plurality of storage mediums, preferably that are geographically remote from one another. When access to the data is requested, the fragments are transmitted through a network and reconstructed into the original data. In certain embodiments, the original data is media content which is steamed to a user from the distributed storage.

According to an example, a method for assigning redundancy in encoding data onto crossbar memory arrays is provided wherein each of said crossbar memory arrays include cells. The data may be allocated to a subset of the cells in multiple crossbar memory arrays. The redundancy for the data may then be assigned based on coordinates of the subset of cells within the multiple crossbar memory arrays onto which the data is allocated.

Symbols are loaded into a diagonal anti-diagonal structure. To provide for fast loading, the symbols may be shifted by one or more shift registers associated with the diagonal or anti-diagonal structure. The two locations at which each symbol are positioned are included within different diagonals or anti-diagonals making it possible to load or unload either symbol or multiple symbols in a single clock cycle. Further, by partitioning the diagonal anti-diagonal structure, multiple respective symbols or plurality of symbols may be loaded or unloaded in a single clock cycle.

A quarter product code codeword includes various R code symbols and C code symbols each including a plurality of symbols. Each symbol is loaded into a diagonal anti-diagonal structure in two unique locations. To provide for fast loading, the symbols may be shifted by one or more shift registers associated with the diagonal or anti-diagonal structure. The two locations at which each symbol is positioned are included within different diagonals or anti-diagonals making it possible to load or unload either symbol or multiple symbols in a single clock cycle. Further, by partitioning the diagonal anti-diagonal structure, multiple respective symbols or plurality of symbols may be loaded or unloaded in a single clock cycle.

A first set of data is encoded using a first code to obtain a first-code codeword which includes the first set of data and first-code parity information. The first set of data is stored on a plurality of drives, wherein the first set of data is distributed amongst the plurality of drives. A second set of data is encoded using a second code to obtain a second-code codeword which includes the second set of data and second-code parity information. The second-code codeword is stored on the plurality of drives, wherein the second set of data and second-code parity information are distributed amongst the plurality of drives.

A transmitting system and a method of transmitting digital broadcast signal are disclosed. The method of transmitting digital broadcast signal includes generating signaling data including a transmission parameter, wherein the transmission parameter includes a protocol version field identifying between a first transmission mode and a second transmission mode, forming a data group including mobile service data and the signaling data, forming mobile service data packets including the mobile service data and the signaling data in the data group, transmitting the digital broadcast signal including the data group.

Communication endpoints and related methods for forward error correction (FEC) are disclosed. A communication endpoint includes control circuitry including a packetizer configured to segment near-end data into groups of near-end data packets, and a forward error correction (FEC) packet generator configured to generate at least two near-end FEC packets for each group of near-end data packets. A method includes generating the FEC packets, and transmitting the data packets and the FEC packets to a far-end communication endpoint. A communication endpoint includes control circuitry including a forward error correction repairer configured to use far-end FEC packets to repair groups of far-end data packets. A method includes receiving a group of far-end data packets and corresponding far-end FEC packets, and repairing far-end data packets with the corresponding far-end FEC packets.

Methods and systems that enable recovery lost packets that were transmitted over a communication network. In one embodiment, a device includes a receiver and a processor. The receiver receives n packets that belong to a set comprising n+2 packets transmitted over the communication network, where the set includes: n data packets, a row parity packet (RPP), and a diagonal parity packet (DPP). Each received packet comprises n segments. Each segment of RPP comprises a result of a parity function applied to a row parity set comprising n segments, each belonging to a different packet from among the n data packets. Each segment of DPP comprises a result of a parity function applied to a diagonal parity set comprising n segments, each belonging to a different packet selected from a group comprising the n data packets and RPP. The processor utilized the received packets to recover two lost packets.

Methods and systems for enabling recovery of lost packets transmitted over a communication network. In one embodiment, a device includes a processor and a transmitter. The processor is configured to calculate a row parity packet (RPP) and a diagonal parity packet (DPP) for n packets. Each of RPP, DPP, and the n packets comprises n segments. The processor utilizes each packet, from among the n packets, to update parity values in RPP and DPP in such a way that each segment in the packet is used to update one segment in RPP and at most one segment in DPP. The transmitter transmits the n packets, RPP, and DPP over the communication network. Receiving any subset of n member of a set comprising: RPP, DPP, and the n packets, enables recovery of two lost packets.

Methods and systems for providing a virtual HDBaseT link. In one embodiment, a first switch transmits packets over an Ethernet network that includes one or more hops. The payload of each of the packets includes an HDBaseT T-packet belonging to an HDBaseT session. A first processor sets, for each packet from among a plurality of the packets, a timestamp value in the packet to correspond to the time at which the packet is transmitted by the first switch. A second switch receives the packets over the Ethernet network. A second processor calculates a clock correction value based on the timestamps in the plurality of packets, and utilizes the clock correction value to perform at least one of the following: (i) control transmission, by the second switch, of data in T-packets in the payloads of the packets, and (ii) recover a source clock of native media delivered over the Ethernet network.