| 摘要 |
<p>A sync restoring apparatus includes a first-in-first-out (FIFO) memory (100) for storing the received variable-length-coded data and sequentially outputting a predetermined number of bits of data according to a read signal, a variable-length-decoder (300) for variable-length-decoding the applied data, outputting the block end signal obtained by the variable-length-decoding operation, and generating a data request signal every time the number of bits of data used in the variable-length-decoding operation becomes a predetermined number of bits, an error detector (400) for generating an error signal when the number of block end signals which are not decoded at the exact variable-length-decoding time is not less than a predetermined limit value based on the data format, and an interfacer (200) coupled to transmit the data applied from the FIFO memory (100) according to the read signal, and if the error signal is not generated in the error detector (400), generating a read signal according to the data request signal generated from the variable-length-decoder (300), while if the error signal is generated in the error detector (400), generating read signals until error-detected second block data is wholly read from the FIFO memory (100), independently of the data request signal, and a controller (500) for controlling the variable-length-decoder (300) so as to stop the decoding operation of the variable-length-decoder (300) when the error signal output from the error detector (400) is applied to the controller (500), while when the second block data following the error-detected second block is supplied to the variable-length-decoder (300), the decoding operation is performed. <MATH></p> |
