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日本经济产业省专利厅曾以作为大规模PLD存在的FPGA/CPLD为对象,对在美日两国内FPGA/CPLD的相关技术专利状况进行了调查与分析,并对其技术发展趋势给予了展望。总的印象是,目前FPGA/CPLD正在持续地发展着,这与市场对它不断增长的需求趋势是基本相适应的。这一领域的技术开发在美国更为先进、活跃,日本也正在快速发展。然而日本的开发成果及专利进入市场的份额相对美国少,美国企业处于优势地位。如果对美日两国在FPGA/CPLD领域的专利状况作一比较便可知,两国的专利都呈现不断增加的趋势,尤其近几年内美国的增长更多些。FPGA/CPLD相对于其它半导体领域而言,美国专利申请数比日本申请数所占比例高近30%。从美日分别在对方国内专利申请人所
The Patent Office of the Japanese Ministry of Economy, Trade and Industry has targeted the FPGA/CPLD as a large-scale PLD, and has investigated and analyzed the related technology patents of the FPGA/CPLD in the United States and Japan, and has given its outlook for the technology development trend. The overall impression is that the current FPGA/CPLD is continuously developing, which is basically in line with the market’s growing demand trend. Technology development in this area is more advanced and active in the United States, and Japan is also developing rapidly. However, Japan’s development results and the market share of patents are relatively small compared to the United States, and US companies are in a dominant position. If we compare the patent situation in the field of FPGA/CPLD between the United States and Japan, we can see that the patents of both countries have shown an increasing trend, especially in the United States in recent years. Compared with other semiconductor fields, FPGA/CPLD has nearly 30% more U.S. patent applications than Japanese applications. From the United States and Japan in the other country’s domestic patent applicants