35results about How to "The decoding process is simple" patented technology

Methods and apparatus are disclosed herein for encoding human readable text conveying a non-genetic message into nucleic acid sequences with a substantially reduced probability of biological impact and decoding such text from nucleic acid sequences. In one embodiment, each symbol of a symbol set of human readable symbols uniquely maps to a respective codon identifier. Mapping may ensure that each symbol will not map to a codon identifier that generates an amino acid residue which has a single-letter abbreviation that is the equivalent to the respective symbol. Synthetic nucleic acid sequences comprising such human readable text, and recombinant or synthetic cells comprising such sequences are provided, as well as methods of identifying cells, organisms, or samples containing such sequences.

A moving picture reproducing device includes a compressed data buffer, a display size obtaining unit, a resolution selecting unit, four kinds of resolution decoding units, and a frame data buffer. Compressed moving picture is received by the compressed data buffer and decoded in one of the four kinds of resolution decoding units. The display size obtaining unit obtains a display size of the decoded moving picture when the image is displayed on a display device. The resolution selecting unit selects one resolution decoding unit from the four kinds of resolution decoding units, according to the display size obtained by the display size obtaining unit. When the moving picture is reduced and displayed on the display device, it is not required to decode the moving picture in an original resolution. The moving picture reproducing device decodes the compressed moving picture in a necessary and the minimum resolution.

The invention discloses methods of video encoding and methods of video decoding. One of the methods of video encoding includes: obtaining intra-frame encoded frames in to-be-encoded image frames; comparing the obtained intra-frame encoded frames with reference images in a preset reference image library, and determining difference frames and identification information thereof; determining residualvalues according to the intra-frame encoded frames and the difference frames; encoding the residual values; and outputting residual values after encoding and the identification information of the difference frames. Through using the above method, further simplification processing on the intra-frame encoded frames and compression ratio improvement in a limited video application scene can be realized; and the problems of increasing complexity of video encoding processes and introducing other additional drawbacks due to optimization manners of multiple encoding, repeated compression, encoding parameter setting optimization or the like used for improving video compression technology can be solved.

The present invention restricts a method of assigning unit identification numbers when parameter sets are arranged in a stream. This makes it possible to simplify a decode process and to increase the speed of the process. In a stream containing a plurality of picture units, a plurality of picture parameter units, and a plurality of system parameter units, the units being arranged in the direction of time series, if a plurality of units have the same parameter set contents, the same unit identification number is assigned to the units. If the parameter set contents of the unit referenced by the preceding unit are different from those of the unit referenced by the next current unit, the unit referenced by the current unit is provided with a unit identification number different from that for the preceding unit.

The invention discloses an encoding and decoding method for improving decoding efficiency by pilot frequency information and a device thereof. The method comprises the following steps that: pilot frequency sequences are evenly inserted into an information sequence before encoding, and the information sequence is subjected to error correction encoding by an error correcting code; the encoded information sequence is generated into an OFDMA symbol after IFFT conversion, and is transmitted to a receiving end; the receiving end carries out FFT conversion on the received information sequence to obtain soft information corresponding to the information sequence which is encoded by a transmitting end; the positions of the pilot frequency sequences inserted into the information sequence are set into corresponding soft information values according to values of the pilot frequency sequences; and the information is subjected to error correcting decoding to obtain transmitting information of the transmitting end. The method and the device can improve the velocity of convergence and decoding performance of an error correcting decoder, reduce the times of decoding iteration, reduce decoding time delay, and simplify the process of decoding.

The invention discloses a method and system for allocating discrete resources. The method comprises the following steps: carrying out joint coding on allocated preset parameters of multiple clusters, and sending the joint coding result to a receiving terminal, wherein the preset parameters comprise the starting point and length of each cluster in the multiple clusters; and calculating the allocated preset parameters of the multiple clusters by the receiving terminal according to the joint coding result. The method and system provided by the invention are convenient to realize, are low in cost and can be used for achieving the balance between the cost and flexibility of the resource allocation through reasonable allocation of the number and size of coprime numbers.

The invention discloses a decoding method of low-density parity check codes. The method includes the following steps that: type analysis is performed on the low-density parity check codes, so that the feature information of the low-density parity check codes can be obtained; the check information and variable information of the low-density parity check codes are stored according to the feature information; a check sub matrix corresponding to the check information is determined through the check information; and decoding of the low-density parity check codes is realized through the check sub matrix and a variable matrix corresponding to the variable information.

The invention discloses a ground digital television receiver, comprising an outer housing, a front panel, a rear panel, an antenna installed on the outer housing, a video output interface and an audio output unit which are installed on the rear panel, further comprising an integral signal decoding unit installed in the outer housing and an FLASH memory unit, a DDR storage unit, a tuner unit and a signal channel demodulation unit which are electrically connected with the integral signal decoding unit; the antenna is electrically connected with the tuner unit; the tuner unit is electrically connected with the signal demodulation unit; and the video output interface and the audio output interface are electrically connected with the integral signal decoding unit. The receiver receives television signals through the antenna, and the signals are processed by the tuner unit and the signal channel demodulation unit and then transmitted to the integral signal decoding unit, and various video and audio signals are generated after the signals are processed by the integral signal decoding unit and then transmitted to the corresponding video output interface and audio output unit. The receiver uses a single chip computer to decode in various encoding standards.

A method for converting multi-order run length data includes using quaternary ( d , k ) code with code rate of R = 5/8 bit/code element as run length limited code in order to convert 5 bit source character formed by decimal system user data to be code character formed by 8 multi-order code elements, using 0 , 1 , 2 and 3 as code element and applying d+1=3 to present minimum number of continuous identical code element to be 3 as well as applying k+1=10 to present maximum number of continuous identical code element to be 10. The data converting device used for realizing said method is also disclosed.

The present invention discloses a method and device for time-frequency transform decoding suitable for an OvXDM system and an OvXDM system. The method comprises: receiving signals and processing the signals to obtain a digital received signal sequence in a first domain; dividing the digital received signal sequence in the first domain by a digital multiplexed waveform signal sequence in the firstdomain to obtain a digital transmission signal sequence in the first domain; converting the digital transmission signal sequence in the first domain to a digital transmission signal sequence in a second domain; and performing decision of the digital transmission signal sequence in the second domain, and taking a decision result as a decoding sequence for output. The method and device for time-frequency transform decoding suitable for an OvXDM system and the OvXDM system simplify a decoding process, save storage resources of a system, reduce the decoding complexity, improve the real-time performance of decoding output, and allow the decoding complexity basically to be only related to a data length without influence of the number of overlapping, so that the complexity cannot be increased with an index rate when the number of times of overlapping is improved.

The invention discloses a video compression method, a video decompression method, an intelligent terminal and a storage medium. The video compression method comprises the following steps: acquiring a picture group of a video, and acquiring a forward frame and a backward frame of a B-frame original frame according to the picture group; obtaining the original frame of the B frame, performing motion compensation on the original frame of the B frame through a motion compensation network, and reconstructing the B frame; encoding the forward frame and the backward frame; and coding the reconstructed B frame according to the coded forward frame and the coded backward frame. The video decompression method comprises the following steps: acquiring a coded and compressed picture group in a video, the picture group comprising a coded B frame and a forward frame and a backward frame of the B frame; decoding the forward frame and the backward frame; and decoding the frame B according to the decoded forward frame and the backward frame. According to the invention, the coding and decoding effects of the B frame can be improved.