基于专利视角的中国智能语音技术发展态势研究

Research on the development trend of China's intelligent voice technology from patent perspective

利用inco Pat科技创新情报平台对智能语音领域专利信息进行检索,经过清洗、标引形成数据库并进行分析,以了解中国智能语音技术的研发态势、技术布局、竞争格局。分析表明,2000年以来中国智能语音领域专利申请处于快速增长阶段,2000-2011年处于技术成长期,2011年之后处于技术换代期。中国智能语音领域专利申请集中在语音识别系统中的后端处理、声学模型、降噪处理等方面。自然语言理解专利申请年均增长率最高,是新的研发热点。将专利权人研究强度分为专注型、新秀型、奠基型和追随型,并据此对全球语音关键技术专利申请排名前25位专利权人进行了分类,其中的3位中国专利权人分布于新秀型和专注型。美国和中国是全球智能语音领域的主要竞争者。中国国内机构海外专利申请数量较少,在智能语音产业链上的参与企业数量、类型仍然偏少。

A statistical analysis of the incoPat database＇ s global patents of intelligent voice technologies was conducted to study the current innovative trends, technical layout and competition of China＇ s R＆D in speech technology. The conclusions of the analysis are given below ： after 2000, the number of patent application of China in the field of intelligent voice grew rapidly, and the technology growth period was from 2000 to 2011. In 2011, China＇ s intelligent voice technology entered the era of technical upgrading China are speech recognition＇ s back-end processing The main research areas of intelligent voice technology in , acoustic model and noise reduction. Natural language under- standing shows its fastest annual growth, and it becomes a new hot spot in the field. The research strength of paten- tees was divided into the types of focus, rookie, foundation and pursuit. According to this, the top 25 patent hold- ers from global intelligent voice technology patent applications were classified, and among them, 3 Chinese paten- tees distributed in the types of rookie and focus. United States and China are the world＇ s main competitors in the field of intelligent voice. The number of overseas patent applications of China＇ s domestic research institutions is very small. The number and type of enterprises involved in China＇ s intelligent voice industry chain is still relatively small.