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公开(公告)号：US10326204B2
公开(公告)日：2019-06-18
申请号：US15258940
申请日：2016-09-07
Applicant: Cisco Technology, Inc.
Inventor： Derrick Pallas , Ian Snyder , Joshua Markell , Morgan Teachworth
Abstract: Disclosed is a system and method of a switchable, oscillating near-field and far-field antenna that may be used in access control systems. A controller is coupled to a transceiver, wherein the transceiver comprises an antenna module that includes both a near-field antenna and a far-field antenna. The near-field antenna is a subset of the far-field antenna, and the controller is adapted to cause the antenna module to oscillate between a near-field configuration and a far-field configuration while, for example, scanning an RFID tag of a wireless asset and receiving one or more return signals from the RFID tag, in order to determine a location of the wireless asset based on the one or more return signals.
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公开(公告)号：US20180069311A1
公开(公告)日：2018-03-08
申请号：US15258940
申请日：2016-09-07
Applicant: Cisco Technology, Inc.
Inventor： Derrick Pallas , Ian Snyder , Joshua Markell , Morgan Teachworth
CPC classification number: H01Q7/00 , G06K7/10356 , G06K19/077 , H01Q1/2208 , H04B5/0025 , H04W4/025
Abstract: Disclosed is a system and method of a switchable, oscillating near-field and far-field antenna that may be used in access control systems. A controller is coupled to a transceiver, wherein the transceiver comprises an antenna module that includes both a near-field antenna and a far-field antenna. The near-field antenna is a subset of the far-field antenna, and the controller is adapted to cause the antenna module to oscillate between a near-field configuration and a far-field configuration while, for example, scanning an RFID tag of a wireless asset and receiving one or more return signals from the RFID tag, in order to determine a location of the wireless asset based on the one or more return signals.
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