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The mobile computing has been introduced to the general public and widely accepted at present. In the next stage, mobile computers enrich our lives and a lot of functions is required. High-performance synthesizers are eagerly anticipated to equip for mobile computing because it can help us and cheer up. Synthesizers are used for sound productions but then it requires enormous computational power....
Many applications in image processing have high inherent parallelism. FPGAs have shown very high performance in spite of their low operational frequency by fully extracting the parallelism. In recent micro processors, it also becomes possible to utilize the parallelism using multi-cores which support improved SIMD instructions, though programmers have to use them explicitly to achieve high performance...
A pattern recognition system that can process a large amount of image data at high speed is required in many fields. In this paper, we propose an on-chip pattern recognition system that utilizes the reconfigurability of the FPGA. The features of the system are not only very high recognition speed but also an adaptive function. For example, when objects to be detected change appearance, recognition...
In image processing, FPGAs have shown very high performance in spite of their low operational frequency. This high performance comes from (1) high parallelism in applications in image processing, (2) high ratio of 8 bit operations, and (3) a large number of internal memory banks on FPGAs which can be accessed in parallel. In the recent micro processors, it becomes possible to execute SIMD instructions...
A method is described for enumerating the frequencies of DNA subsequences on a system comprising a host computer and a field programmable gate array (FPGA) board with one FPGA. Frequencies of subsequences with lengths of up to K0 + K1 + K2 (24 in the current implementation) are enumerated in three phases. In these three phases, subsequences with lengths of up to K0, K0 + K1 and K0 + K1 + K2, respectively,...
Multiple sequence alignment problems in computational biology have been focused recently because of the rapid growth of sequence databases. By computing alignment, we can understand similarity among the sequences. In this paper, we describe a compact system with an FPGA board and a host computer for multiple sequence alignment based on Carrillo-Lipman method. In our system, two dimensional dynamic...
This paper proposes a method of generating a lightweight scalable NFA-based string matching circuit with elimination of redundant resources. String matching circuits have been studied extensively for intrusion detection systems. An NFA-based string matching circuit, one of the works, has expandability of the processing data width. Due to the huge hardware requirement, it was difficult to implement...
To increase the flexibility of single-chip evolvable hardware systems, we explore possibilities of systems with the evolutionary algorithm implemented in software on an on-chip processor. This gives higher flexibility compared to implementing an evolutionary algorithm directly in hardware, since the parameters and behaviour of the algorithm can easily be changed, and complex operators are more feasible...
In the field of cell biology and biochemistry, it is now widely accepted that spatiotemporal dynamics play vital roles in cellular systems such as signal transduction and cell cycle control. For an efficient engineering of biochemistry with such problems, we have been developing a modeling system based on Monte Carlo simulation methods. In this system, protein molecules are described as particles...
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