On May 10, 2013, two  sets of software named ‘Subreflector Control software [abbreviation:  Subctrl ] V4.0’ and ‘Delingha OTF Table Generator [abbreviation: dotg ]  V3.3’, which proposed by Purple Mountain Observatory, Qinghai Station,  were authenticated certifications of Computer Software Copyright  Registration by National Copyright Administration (NCA) of the People's  Republic of China, taking registration numbers with No.548908th and  No.548912nd respectively. 

  On June 24, 2013,  according to the relevant provisions of the Patent Law, a patent  application proposed by Qinghai station of the Purple Mountain  Observatory (‘A Method of OTF Observation Scanning’) was accepted in  State Intellectual Property Office of the People's Republic of China  with application number 201310251925.9. 

  This accepted patent  application and the two sets of software were developed by the Senior  Engineer Jixian Sun in Qinghai station. All of them have been used in  13.7m mm-wave radio telescope open operation for many years, and  received extensive praise from both domestic and foreign observers.