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/* Problem Vs Solutions */
|US20040246130<br>
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|align = "justify"|'''1.''' A major disadvantage of all transponder based tag designs is that the special anti-collision methodsmethod used<br>'''2. '''A short range reader must be used to individually address each tag within the larger field<br>'''3. '''A second major disadvantage is that to obtain long ranges (100-1,000 feet), higher frequencies are required and these lead to high power consumption<br>
|align = "justify"|'''1. & 2.''' By using lower frequencies (not exceeding 1 MHz and typically under 300 KHz) and a base station design that uses large loop antennas (such as 10.times.10 feet to 500.times.500 feet) and by transmitting a digital ID to selectively activate a selected client tag, rather than a non-selective signal which would activate many tags simultaneously<br>'''3.''' Networked RF Tags (NRF Tags) have significantly reduced power consumption and long range (1000 sq feet to 10,000 sq feet per antenna), have the power capacity to add displays (e.g. LCD) and light emitting diodes (LED<nowiki>’</nowiki>s) and detectors and buttons so they may become fully interactive "tag clients" (this is not possible with transponder)
|US20040201454<br>
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