US. PATENT DOCUMENTS processor; a backscatter modulator coupled to the processor;
and an active transmitter coupled to the processor, the active 5,097,253 A 3/1992 …

SUMMARY OF THE INVENTION RF transponders are commonly classified in terms of the
use they make of an internal power source. A passive tran sponder has no internal power …

A radio frequency identification (RFID) tag is described that has both passive RFID tag
features and active RFID tag features. In one example, the tag has a first radio transponder …

BACKGROUND The field of the disclosure relates generally but not exclu sively to wireless
tag readers, such as Radio Frequency Iden tification (RFID) tag readers, and, more …

Int. Cl. B60O 25/10(2006.01) Remote communications devices, wireless communications
(52) US Cl....................... 340/428; 340/447; 340/442: systems, and wireless communications …

The invention relates to managing and controlling access by a user wireless device (MD) to
a wireless local area network (WLAN) at an access point or “hotspot', while protecting the …

BACKGROUND An important feature in modern work machines (eg, fixed and mobile
commercial machines, such as construction machines, fixed engine systems, marine-based …

A multiuse system for use with Wireless Display Tags (WDTs) includes, in one or more
exemplary arrangements, techniques for automatically maintaining synchronicity between …

Method and system of placing a RFID tag in a continuous transmission mode. At least some
of the illustrative embodi ments are methods comprising sending a command from a radio …

(57) ABSTRACT A method of operating an RFID system and an RFID system in a power-
saving mode are disclosed. In one embodiment, the system comprises at least one reader …