Research on the Key-technology Selection of Virtual Reality Based on Patent Citation Analysis

摘要

Based on the data of "Derwent Innovation Index" from 1963 to 2009, the authors construct a pa-tent analysis dataset of virtual reality by retrieving the patents through keywords and classification numbers. The authors also reveal technical hot points,key technologies of virtual reality through patent citation analy-sis and multivariate statistical analysis, and then acquire CTI (competitive technical intelligence) for enter-prises.