Ebook Electronic circuits Fundamentals and applications (3rd edition) Part 1

... is the foot of the perpendicular from the point to the plane The projection of any figure on a plane is the locus of the projections of all points of the figure on the plane Thus, B is the projection ... side of a triangle and h the altitude on it and b another side and k the altitude on it, then ah = bk 62 The area of a trapezoid is equal to one half the product of its altitude and the sum of ... 214 SOLID GEOMETRY WITH PROBLEMS AND APPLICATIONS REVISED EDITION BY H E SLAUGHT, Ph.D., Sc.D PROFESSOR OF MATHEMATICS IN THE UNIVERSITY OF CHICAGO AND N J LENNES, Ph.D PROFESSOR OF MATHEMATICS...

... available in electronic books Library of Congress Cataloging -in- Publication Data Finkenzeller, Klaus [RFID Handbuch English] RFID handbook : fundamentals and applications in contactless smart cards and ... These also include proximity coupling (ISO 14 443, contactless smart cards) and vicinity coupling systems (ISO 15 693, smart label and contactless smart cards) Frequencies below 13 5 kHz or 13 .56 MHz ... comparing unmistakable and individual physical characteristics In practice, these are fingerprinting and handprinting procedures, voice identification and, less commonly, retina (or iris) identification...

... up in the following equation: (4 .22 ) Because, in practice, i1 and i2 are sinusoidal (HF) alternating currents, we write equation (4 .22 ) in the more appropriate complex notation (where ω = 2 f): ... Impedance Z2 represents the parallel connection of C2 and RL in the transponder We replace Z2 with the full expression containing C2 and RL and thus finally obtain an expression for that incorporates ... us now investigate the influence of the circuit elements R2 , RL and L2 on voltage u2 To gain a better understanding of the interactions between the individual parameters we will now introduce...

... transmitted is held in the two sidebands, with each sideband containing the same information One of the two sidebands is filtered in the reader and finally demodulated to reclaim the baseband signal of ... by contactless smart cards for local public transport applications, which carry out authentication with the reader within a few 100 ms and must also transmit booking data Contactless smart cards ... Matching of a Schottky detector (point 1) to a dipole antenna (point 4) by means of the series connection of a coil (point 1-2), the parallel connection of a second coil (point 2 3) , and finally...