Codeable identifying tag and method of identification thereof
作者： Daniel D. Mawhinney
DOI:
关键词:
摘要: A tag is receptive of two radio frequencies (RF signals) for mixing the and radiating a signal which either or both sum difference RF frequencies. uniquely identifiable includes, in addition to mixer one more filters only when signals pre-specified value are each pre-selected values.
lens.org 参考文章(16)
Norman E. Chasek, Vehicle identification system, using microwaves ,(1976)
Edward R. Fearon, Roger Scarr, Anti-shoplifting system ,(1979)
Dickron Mergerian, Daniel C. Buck, Spin echo matched filter ECM detector ,(1973)
Andrew David Ritzie, Gerald Stanley Kaplan, Homodyne communication system ,(1975)
Thomas D. Meyers, Ashley P. Leigh, Passive encoding microwave transponder ,(1976)
G.S. Kaplan, F. Sterzer, Dual-Mode Automobile Collision Avoidance RADAR international microwave symposium. pp. 335- 337 ,(1975) , 10.1109/MWSYM.1975.1123386
John D. Mccann, James H. Stephen, Marker tag for a detection system ,(1978)
Richard Keller, Harry A. Augenblick, Harmonic communication system ,(1974)
Stephen J Erst, Frequency modulated radar system employing two sinusoidal modulating frequencies ,(1958)
Morris E Brodwin, Wide band noise source ,(1957)