Abstract: A method and device for decoding a syntax element are provided. The method includes reading candidate context models which correspond to a syntax element to be decoded; determining a context index increment for the syntax element; selecting a candidate context model of the candidate context models according to the context index increment; and performing binary arithmetic decoding for the syntax element based on the selected candidate context model. The device includes a context model reservoir which reads and stores candidate context models corresponding to a syntax element to be decoded; an increment determining unit which determines a context index increment for the syntax element; a context model selection unit which selects a candidate context model of the candidate context models by using the context index increment; and a decoding unit which performs a binary arithmetic decoding operation for the syntax element based on the selected candidate context model.

Abstract: A bus system transmitting estimated standby time and a method of controlling the bus system are provided. The bus system includes a plurality of masters, a slave, and a bus unit which supports connections between the plurality of masters and the slave via a bus, and transmits an estimated standby time to at least one master among the plurality of masters if one of the plurality of masters already occupies the bus. Accordingly, the master may schedule a valid operation using the estimated standby time.

Abstract: A method and device for decoding bin values using a pipeline architecture in a CABAC decoder are provided. The method includes reading a first context model required to decode a first bin value, from a memory; determining whether a second context model required to decode a second bin value is the same as the first context model, while decoding the first bin value using the first context model; determining whether a third context model required to decode a third bin value is the same as the second context model, while decoding the second bin value using the second context model, if it is determined that the second context model is the same as the first context model; and reading the second context model from the memory, if it is determined that the second context model is not the same as the first context model.

Abstract: A method and a device for decoding a syntax element in a context-based adaptive binary arithmetic coding (CABAC) decoder perform a binary arithmetic coding (BAD) process and a binarization matching (BM) process in parallel. The method includes determining an expected bin value to make a bin string including the bin value valid while generating a one-bit bin value by performing a BAD process for a syntax element to be decoded; determining whether the generated bin value is the same as the expected bin value; generating the decoded value of the syntax element by de-binarization of a bin string including the generated bin value if the bin value generated in the BAD process is the same as the expected bin value; and performing the BAD process to generate the next bin value if the bin value generated in the BAD process is different from the expected bin value.

Abstract: A method and device for decoding bin values using a pipeline architecture in a CABAC decoder are provided. The method includes reading a first context model required to decode a first bin value, from a memory; determining whether a second context model required to decode a second bin value is the same as the first context model, while decoding the first bin value using the first context model; determining whether a third context model required to decode a third bin value is the same as the second context model, while decoding the second bin value using the second context model, if it is determined that the second context model is the same as the first context model; and reading the second context model from the memory, if it is determined that the second context model is not the same as the first context model.

Abstract: A method and a device for decoding a syntax element in a context-based adaptive binary arithmetic coding (CABAC) decoder perform a binary arithmetic coding (BAD) process and a binarization matching (BM) process in parallel. The method includes determining an expected bin value to make a bin string including the bin value valid while generating a one-bit bin value by performing a BAD process for a syntax element to be decoded; determining whether the generated bin value is the same as the expected bin value; generating the decoded value of the syntax element by de-binarization of a bin string including the generated bin value if the bin value generated in the BAD process is the same as the expected bin value; and performing the BAD process to generate the next bin value if the bin value generated in the BAD process is different from the expected bin value.

Abstract: A method and device for decoding a syntax element are provided. The method includes reading candidate context models which correspond to a syntax element to be decoded; determining a context index increment for the syntax element; selecting a candidate context model of the candidate context models according to the context index increment; and performing binary arithmetic decoding for the syntax element based on the selected candidate context model. The device includes a context model reservoir which reads and stores candidate context models corresponding to a syntax element to be decoded; an increment determining unit which determines a context index increment for the syntax element; a context model selection unit which selects a candidate context model of the candidate context models by using the context index increment; and a decoding unit which performs a binary arithmetic decoding operation for the syntax element based on the selected candidate context model.