Local processing of received RFID tag responses
First Claim
1. A method for an RFID reader system comprising at least two layers to process a plurality of received RFID tag responses, the method comprising:
- receiving a particular one of the responses at a first one of the layers;
determining whether the particular response meets at least one post select criterion, while still at the first layer; and
if so, handing off control from the first layer to a second one of the layers, and then waiting until control is returned to the first layer, and then receiving a second one of the responses at the first layer.
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Abstract
Radio frequency identification (RFID) tags selected for inventorying using combination of preselect and/or post select criteria. The selection commands can be for selecting according to a tag memory content, by invoking the mask address or by comparing other tag characteristics. Selection criteria can be determined locally at a modem block of a reader or provided to the modem block by higher layers of the reader. Tags meeting the selection criteria are reported to the higher layers for further actions. Some tags may be held while waiting for instructions from the higher layer block(s).
66 Citations
43 Claims
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1. A method for an RFID reader system comprising at least two layers to process a plurality of received RFID tag responses, the method comprising:
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receiving a particular one of the responses at a first one of the layers;
determining whether the particular response meets at least one post select criterion, while still at the first layer; and
if so, handing off control from the first layer to a second one of the layers, and then waiting until control is returned to the first layer, and then receiving a second one of the responses at the first layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An RFID reader system for receiving and processing RFID tag responses, comprising:
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a first layer; and
a second layer, and in which the first layer configured to;
receive a particular one of the responses, determine whether the particular response meets a post select criterion, and if so, hand off control to the second layers and then wait until control is returned to the first layer, and then receive a second one of the responses. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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15. The system of claim 15, further comprising:
a Media Access Control layer as part of the first layer, wherein the first layer is a modem and the second layer is a host processor, and wherein the first layer and the second layer communicate through a Modem Application Programming Interface (MAPI).
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34. An RFID reader system for receiving and processing RFID tag responses, comprising:
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a means for receiving a particular one of the responses at a first one of the layers;
a means for determining whether the particular response meets a post select criterion, while still at the first layer; and
a means for handing off control from the first layer to a second one of the layers if the post select criterion is met, and then waiting until control is returned to the first layer, and then receiving a second one of the responses at the first layer. - View Dependent Claims (35, 36)
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37. A computer-readable medium including instructions thereon for processing a plurality of received RFID tag responses in an RFID reader system comprising at least two layers, the instructions comprising:
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receiving a particular one of the responses at a first one of the layers;
determining whether the particular response meets at least one post select criterion, while still at the first layer; and
if so, handing off control from the first layer to a second one of the layers, and then waiting until control is returned to the first layer, and then receiving a second one of the responses at the first layer. - View Dependent Claims (38, 39, 40, 41, 42, 43)
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Specification