Patent ID: 8368513
Filing Date: 2013-02-05
Classification: G06K,H04Q

Abstract:
1. A radio frequency identification interrogator (RFIDI) system, comprising: first band transmitter circuitry for transmitting first band radio frequency (RF) signal communications, the first band being a multiple channel-based frequency band; and at least one processing device that is coupled to the first band transmitter circuitry; the at least one processing device being configured to control transmission of first band RF signal interrogator polling signals to multiple radio frequency identification (RFID) tags from the RFIDI system by the first band transmitter circuitry, at least a first one of the multiple RFID tags being located in a first sector coverage area and at least a second one of the multiple RFID tags being location in a second sector coverage area that is a different area from the first sector coverage area; wherein the at least one processing device is configured to control the first band transmitter circuitry to transmit a separate interrogator polling signal on each of a selected number of multiple pre-defined channels of the multiple channel-based first band, each of the pre-defined multiple channels being selected to correspond to the first band receiver frequency of at least one given RFID tag, each of the multiple pre-defined channels being selected to correspond to a RFID tag first band receiver frequency that is different from the RFID tag first band receiver frequency corresponding to each of the other pre-defined multiple pre-defined channels, and the first band receiver frequency of the first RFID tag being different than the first band receiver frequency of the second RFID tag; wherein the at least one processing device is further configured to control the first band transmitter circuitry to transmit each of the interrogator polling signals on a first selected pre-defined channel for a given transmit time prior to sequentially transmitting another interrogator polling signal on a second and different selected pre-defined channel for a given transmit time in a frequency hopping manner; wherein the at least one processing device is further configured to control the first band transmitter circuitry to first sequentially transmit the interrogator polling signals on each of the selected multiple pre-defined channels in a first given direction to the first sector coverage area and not to the second sector coverage area, and then to sequentially transmit interrogator polling signals on each of the selected multiple pre-defined channels in a second given direction to a second sector coverage area and not to the first sector coverage area, the first and second coverage areas being different from each other and the first and second directions each extending radially outward from a common centerpoint and being different from each other; wherein the interrogator polling signal transmitted on the first selected pre-defined channel has a data format that is readable by the first RFID tag and not readable by the second RFID tag, and contains instructions operable to control one or more operations of the first RFID tag; and wherein the interrogator polling signal transmitted on the second selected pre-defined channel has a data format that is readable by the second RFID tag and not readable by the first RFID tag, and contains instructions operable to control one or more operations of the second RFID tag.