[1] LIU W P. Development of laser marking machine based on ARM and FPGA.Nanjing:Nanjing Forestry University,2011:10-11(in Chinese).
[2] ZHANG N X. Study on CO2 laser marker.Changchun: Changchun University of Science and Technology,2012:8-12(in Chinese).
[3] ZHANG Y.High speed and high precision galvanometer laser marking system solutions based on DSP.Wuhan:Huazhong University of Science Technology, 2007:8-10(in Chinese).
[4] SUN L Y, HAN X Ch. The research of NC controller of laser-pointer[J].Machine Design and Manufacturing Engeering,1998,27(6):44-45(in Chinese).
[5] LIU Y Zh. The laser marking system on lattice character optimum processing.Changchun: Changchun Institute of Optics, Fine Mechanics and Physics of Chinese Academy of Sciences, 2004:44-48(in Chinese).
[6] ZHAO Y F, CHEN X H, ZHENG Y, et al.Achievement for scanning project upon the mirror laser online-marking system[J].Applied Laser,2004,24(1):41-42(in Chinese).
[7] FENG L Y, WANG X, ZHOU J T, et al.Polynomial fitting correction of galvanometer geometric distortion error in laser marking[J].Laser Technology,2013,37(5):601-604(in Chinese).
[8] BI X J, HAN Zh N. The development of Chinese font and its storage technology[J].Computer Techniques of Automation and Applications,2007,26(12):95-96(in Chinese).
[9] KUANG Y, WU Y F, WU B, et al. Extraction and optimization of marking path laser marking systems[J].Laser Technology,2012,36(1):131-133(in Chinese).
[10] TEMLYAKOV V N, ZHELTOV P. On performance of greedy algorithms[J]. Journal of Approximation Theory,2011,163(9):1134-1145.