US 6,982,646 B2
Object identification system with adaptive transceivers and methods of operation
James L. Rodgers, Mesa, Ariz. (US); John J. Coulthard, Scottsdale, Ariz. (US); Billy C. Fowler, Phoenix, Ariz. (US); Howard K. Jaecks, Mesa, Ariz. (US); Roc A. Lastinger, Mesa, Ariz. (US); Paul A. Picard, Mesa, Ariz. (US); and Mohammad A. Rehman, Chandler, Ariz. (US)
Assigned to RF Code, Inc., Mesa, Ariz. (US)
Filed on Aug. 03, 2001, as Appl. No. 9/921,956.
Application 09/921956 is a division of application No. 09/372274, filed on Aug. 11, 1999, granted, now 6,362,737.
Application 09/372274 is a continuation in part of application No. 09/233755, filed on Jan. 20, 1999, granted, now 6,351,215.
Application 09/233755 is a continuation in part of application No. 09/088924, filed on Jun. 02, 1998, abandoned.
Prior Publication US 2002/0011932 A1, Jan. 31, 2002
Int. Cl. G08B 13/14 (2006.01)
U.S. Cl. 340—572.7 12 Claims
OG exemplary drawing
 
1. A system comprising:
a. a monitor for determining whether a provided radio frequency identification device is present, determining being in accordance with a radio frequency signal input to the monitor; and
b. a plurality of antenna controllers coupled to the monitor via a provided network, the network for conveying one or more commands and for conveying the radio frequency signal, an antenna controller of the plurality comprising:
(1) a coupler;
(2) a radio frequency amplifier; and
(3) a plurality of antenna interfaces, each for coupling a provided antenna to the coupler; wherein
c. in response to the one or more commands received from the monitor via the network and identified to the antenna controller by an address of the one or more commands, the coupler couples at least one antenna interface identified by the one or more commands to the amplifier for providing an amplified signal, and the antenna controller provides the radio frequency signal to the monitor in accordance with the amplified signal.