公开(公告)号：US06992564B2

公开(公告)日：2006-01-31

申请号：US09909369

申请日：2001-07-19

申请人： Sean A. Connolly ,  William Sackett ,  Stephen J. Shellhammer ,  Frank Boccuzzi ,  Adam Levine

发明人： Sean A. Connolly ,  William Sackett ,  Stephen J. Shellhammer ,  Frank Boccuzzi ,  Adam Levine

IPC分类号： G06F7/00

CPC分类号： G06K17/00 ,  G06K2017/0045

摘要： A system and method described for tracking portable devices. The system may include a transmitter which transmits wireless inquiries to a plurality of portable devices and a receiver receiving replies to the inquiries from the portable devices. In addition, the system may include a memory storing identifier data corresponding to the portable devices and a processor coupled to the memory and to the receiver, the processor retrieving from each reply, identifier data uniquely identifying a particular one of the portable devices which generated the reply and comparing the identifier data to the stored identifier data. Furthermore, the system may include an alarm system coupled to the processor and controlled based on the comparison of stored identifier data to the identifier data retrieved from the replies.

公开(公告)号：US07047051B2

公开(公告)日：2006-05-16

申请号：US10280557

申请日：2002-10-25

申请人： William Sackett ,  Adam Levine ,  Sean Connolly ,  Anthony Biuso ,  Stephen Shellhammer ,  Frank Boccuzzi ,  Kevin Cordes

发明人： William Sackett ,  Adam Levine ,  Sean Connolly ,  Anthony Biuso ,  Stephen Shellhammer ,  Frank Boccuzzi ,  Kevin Cordes

IPC分类号： H04B1/38

CPC分类号： H04W52/0229 ,  Y02D70/144 ,  Y02D70/26

摘要： Battery power consumption and data transfer latency of an electro-optical reader in a wireless network are minimized by turning a radio off in a default state, and by turning the radio on only after the reader has generated data to be transferred along the network.

公开(公告)号：US06783071B2

公开(公告)日：2004-08-31

申请号：US09883516

申请日：2001-06-18

申请人： Adam Levine ,  Stephen J. Shellhammer

发明人： Adam Levine ,  Stephen J. Shellhammer

IPC分类号： G06K1500

CPC分类号： G07G1/14 ,  G06K17/0022 ,  H04W84/18

摘要： Wireless data communications using a master/slave protocol are easily established between a master radio module which is part of a POS terminal and a slave radio module which is part of a portable bar code scanning device. A bar code identifying the portable bar code scanning device is provided on the outside of the housing of the portable device. By scanning this bar code with a scanner associated with the POS terminal, such as a fixed scanner built onto a counter, the master/slave radio communications link can be automatically implemented.

摘要翻译： 使用主/从协议的无线数据通信在作为POS终端的一部分的主无线电模块和作为便携式条形码扫描装置的一部分的从无线电模块之间容易地建立。 识别便携式条形码扫描装置的条形码设置在便携式装置的壳体的外部。 通过使用与POS终端相关联的扫描仪（例如内置在计数器上的固定扫描仪）扫描该条形码，可以自动实现主/从无线电通信链路。