摘要：本研究将文献计量学中的共被引方法应用到专利文献的研究中，对在我国申请的数字信息传输领域中的专利技术前沿问题进行了探讨，并采用spring embedding聚类算法将研究结果用可视化的形式形象地表现出来。研究发现，近年来中国数字信息传输领域中的技术热点从信息加密技术转向信息分配和无线通讯；虚拟现实、人机交互和网络技术在这个领域中的应用越来越广泛；技术热点从集中向多元化方向发展的趋势也日趋明显。

Abstract: The co-citation measure of bibliometrics is employed into a patent analysis to study and show the technological frontier transferring in the digit information communication field of China. Spring embedding algorithm is used to cluster and visualize the patents. The patent maps show that in recent years, the technology hot point is transferring from information encrypt to information distribution and wireless communication. Virtual reality technology, interaction of men and machine, and network technology has been broadly used in this field. The technology frontier tends to become multi-hot points.