Various embodiments of the present technology may comprise methods and apparatus for data compression and transmission. Embodiments the present technology transmit relevant data sub-cubes and compress and transmit non-relevant data sub-cubes. Relevant data sub-cubes may be those sub-cubes that contain detected target data and sub-cubes that are directly adjacent to the detected target data. Data contained in the directly adjacent sub-cubes that are overlapping/shared are only transmitted once.

Systems, apparatus and methods are provided for compressing data. An exemplary method may comprise interleaving one or more literal length fields with one or more literal fields to an output. The literal fields may contain a first data segment literally copied to the output, and each of the one or more literal length fields may contain a value representing a length of a succeeding literal field. The method may further comprise determining a second data segment being matched to a previously literally copied sequence of data and a match position and writing to the output one or more match length fields and a match position field containing the match position. The literal length fields may contain a total length of the first data segment and the match length fields may contain a total length of the second data segment.

An encoding/decoding technique is provided with which encoding can be performed using a small average number of bits even for a sequence of integer values including small non-zero values and having a distribution heavily biased toward small values. The present invention includes an integer encoding part 110 that, with respect to an inputted sequence of non-negative integer values x_n, n {1, 2, . . . , N} (hereinafter referred to as an integer sequence), obtains a 1-bit code as a code corresponding to a run of integer values 0 of length L, a predetermined number which satisfies 2L2.sup.K1, which is included in the integer sequence and obtains a (Kx_n)-bit or (Kx_n+1)-bit code as a code corresponding to a set of a run of integer values 0 of length from 0 to L1 and one non-zero integer value x_n included in the integer sequence, where K is assumed to be an integer equal to or larger than 2.

Systems and methods are provided for encoding a multi-pixel caching scheme for lossless encoders. The systems and methods can include obtaining a sequence of pixels, determining repeating sub-sequences of the sequence of pixels consisting of a single repeated pixel and non-repeating sub-sequences of the sequence of pixels, responsive to the determination, encoding the repeating sub-sequences using a run-length of the repeated pixel and encoding the non-repeating sub-sequences using a multi-pixel cache, wherein the encoding using a multi-pixel cache comprises, encoding non-repeating sub-sequences stored in the multi-pixel cache as the location of the non-repeating sub-sequences in the multi-pixel cache, and encoding non-repeating sub-sequences not stored in the multi-pixel cache using the value of the pixels in the non-repeating sub-sequences.

Systems and methods are provided for encoding a multi-pixel caching scheme for lossless encoders. The systems and methods can include obtaining a sequence of pixels, determining repeating sub-sequences of the sequence of pixels consisting of a single repeated pixel and non-repeating sub-sequences of the sequence of pixels, responsive to the determination, encoding the repeating sub-sequences using a run-length of the repeated pixel and encoding the non-repeating sub-sequences using a multi-pixel cache, wherein the encoding using a multi-pixel cache comprises, encoding non-repeating sub-sequences stored in the multi-pixel cache as the location of the non-repeating sub-sequences in the multi-pixel cache, and encoding non-repeating sub-sequences not stored in the multi-pixel cache using the value of the pixels in the non-repeating sub-sequences.

Systems, apparatus and methods are provided for compressing data. An exemplary method may comprise interleaving one or more literal length fields with one or more literal fields to an output. The literal fields may contain a first data segment literally copied to the output, and each of the one or more literal length fields may contain a value representing a length of a succeeding literal field. The method may further comprise determining a second data segment being matched to a previously literally copied sequence of data and a match position and writing to the output one or more match length fields and a match position field containing the match position. The literal length fields may contain a total length of the first data segment and the match length fields may contain a total length of the second data segment.

An information storage device includes a memory and a processor coupled to the memory. The memory is configured to store therein a plurality of data. The processor is configured to receive a write request of writing first data to the memory. The processor is configured to perform an exclusive OR operation on the first data and second data of the plurality of data to obtain first difference data. The processor is configured to encode the first difference data by a run-length encoding to obtain encoded data. The processor is configured to determine whether a first size of the encoded data is smaller than a predetermined threshold value. The processor is configured to store, upon determining that the first size is smaller than the predetermined threshold value, the encoded data in the memory in association with first position information indicating a position of the second data.

An information storage device includes a memory and a processor coupled to the memory. The memory is configured to store therein a plurality of data. The processor is configured to receive a write request of writing first data to the memory. The processor is configured to perform an exclusive OR operation on the first data and second data of the plurality of data to obtain first difference data. The processor is configured to encode the first difference data by a run-length encoding to obtain encoded data. The processor is configured to determine whether a first size of the encoded data is smaller than a predetermined threshold value. The processor is configured to store, upon determining that the first size is smaller than the predetermined threshold value, the encoded data in the memory in association with first position information indicating a position of the second data.

Methods, devices and systems enhance compression and decompression of data blocks of data values by selecting the best suited compression method and device among two or a plurality of compression methods and devices, which are combined together and which said compression methods and devices compress effectively data values of particular data types; said best suited compression method and device is selected using as main selection criterion the dominating data type in a data block by predicting the data types within said data block.

Methods, devices and systems enhance compression and decompression of data blocks of data values by selecting the best suited compression method and device among two or a plurality of compression methods and devices, which are combined together and which said compression methods and devices compress effectively data values of particular data types; said best suited compression method and device is selected using as main selection criterion the dominating data type in a data block by predicting the data types within said data block.