JCIPRNET
Accelerated compression method and accelerated compression apparatus
An accelerated compression method and apparatus are provided. The accelerated compression apparatus includes a look-ahead buffer, a string matching processing pipeline and a control circuit. The string to be compressed extracted from the data register is stored to the look-ahead buffer. A string to be compressed includes Q characters, and a repeat flag is stored in the look-ahead buffer for each character in the string to be compressed. P instances are issued in parallel in each issue cycle. When all the characters included in P substrings corresponding to the P instances are identical to each other, the control circuit sets the repeat flags of the start characters corresponding to the last (P−1) instances among the P instances to a set state. An instance in which the repeat flag of any character of the P instances is not set to the set state is sent to the string matching processing pipeline for a matching operation, and an instance in which the repeat flags of all the characters are set to the set state is prevented from being sent to the string matching processing pipeline.
Shanghai Zhaoxin Semiconductor Co., Ltd.
H G H H
H03M G06F H03M H03M
inventional inventional inventional inventional
Lin Zongpu Zheng Xiaoyang
Li Qi Wang Li