Papers by Author: Hong Shen

Abstract: Pipeline processing provides us an effective way to enhance processing speed with low hardware costs. However, pipeline hazards are obstacles to the smooth pipelined execution of instructions. This paper analyzes the pipeline hazards occur in a pipeline processor designed for data processing in mechanical measurements. Instruction scheduling and register renaming are performed to eliminate hazards. The simulation experiments are performed, and the effectiveness is confirmed.

Abstract: This paper makes an attempt to improve the retrieving algorithm for an intelligent communication instrument. The instrument is developed for visually impaired computer users, and it converts texts displayed on a computer screen into audio messages to help them operate the computer. The conversion is performed based on a user dictionary, and a retrieving algorithm is needed to search the dictionary. In order to accelerate the retrieving speed, we adopt an index table when retrieving the first two alphabets of a word in the dictionary. The time for retrieving words is measured in the experiments. The experimental results reveal that the retrieving operations can be finished within an acceptable time.