语音处理全球专利计量分析

Global Patent Analysis of Speech Processing

语音处理是人工智能应用的主要领域之一。语音处理是指用以研究语音发声过程、语音信号的统计特性、语音的自动识别、机器合成以及语音感知等各种处理技术的总称。该文以专利文献为分析对象,从专利申请趋势、专利布局国家/地区、专利申请机构、有效专利、近三年专利、四方专利六个角度对人工智能语音处理及其典型技术分支进行分析,揭示全球人工智能语音专利技术布局态势和竞争格局,以期为我国人工智能及语音处理技术研发布局提供情报参考和支撑。研究发现:全球语音处理技术专利布局整体呈现增长态势,我国在语音处理专利量上具有优势,但是专利布局主要围绕本国保护,海外专利布局方面距离美、日、韩等国家还有一定差距。

Speech processing is a general term used to study the process of speech production,statistical characteristics of speech signals,automatic speech recognition,machine synthesis,and speech perception.Taking patent literature as the analysis object,this paper analyzes the patents of speech processing and speech recognition from six perspectives:patent application trends,patent layout countries/regions,patent application agencies,valid patents,patents in the past three years,and four-party patents.It reveals the global speech processing patent technology layout situation and competition pattern,and provides reference for China’s Artificial Intelligence and speech processing technology research and development layout.The results show that:the global patent application of speech processing technology is on the rise as a whole;China’s speech processing patent application has some advantages,but the patent application mainly focuses on domestic protection;there is still a gap between China and the United States,Japan and South Korea in terms of overseas patent application.