Encoded information reading terminal with multi-directional antenna
First Claim
Patent Images
1. An encoded information reading terminal comprising:
- a radio frequency identifier (RFID) reader; and
one or more antennas operable in one of a first arrangement or a second arrangement, wherein said first arrangement comprises at least a first antenna and a second antenna electrically coupled to a switching circuit,wherein at least said first and second antennas have substantially different spatial orientations, and said first antenna is spaced apart from said second antenna by a predetermined distance based on a size of said first antenna,wherein said switching circuit is configured to alternatively electrically couple each antenna of at least said first and second antennas to said RFID reader for a pre-defined period of time, until a radio signal having a signal strength exceeding a pre-defined signal strength threshold is detected,wherein said second arrangement comprises at least said first antenna electrically coupled to a mechanical rotor, wherein said mechanical rotor is configured to periodically rotate said first antenna by a first predetermined angle around an axis which is substantially orthogonal to a printed circuit board (PCB) on which said first antenna are mounted, andwherein said mechanical rotor is further configured to rotate said first antenna around said axis directed under a second predetermined angle with respect to said PCB on which said first antenna is mounted.
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Abstract
An encoded information reading terminal can comprise a microprocessor, a memory communicatively coupled to the microprocessor, a radio frequency identifier (RFID) reading device, and two antennas having substantially different spatial orientation. A switching circuit can be configured to alternatively electrically couple one of the antennas to the RFID reading device.
173 Citations
19 Claims
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1. An encoded information reading terminal comprising:
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a radio frequency identifier (RFID) reader; and one or more antennas operable in one of a first arrangement or a second arrangement, wherein said first arrangement comprises at least a first antenna and a second antenna electrically coupled to a switching circuit, wherein at least said first and second antennas have substantially different spatial orientations, and said first antenna is spaced apart from said second antenna by a predetermined distance based on a size of said first antenna, wherein said switching circuit is configured to alternatively electrically couple each antenna of at least said first and second antennas to said RFID reader for a pre-defined period of time, until a radio signal having a signal strength exceeding a pre-defined signal strength threshold is detected, wherein said second arrangement comprises at least said first antenna electrically coupled to a mechanical rotor, wherein said mechanical rotor is configured to periodically rotate said first antenna by a first predetermined angle around an axis which is substantially orthogonal to a printed circuit board (PCB) on which said first antenna are mounted, and wherein said mechanical rotor is further configured to rotate said first antenna around said axis directed under a second predetermined angle with respect to said PCB on which said first antenna is mounted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An encoded information reading terminal comprising:
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a radio frequency identifier (RFID) reader; an antenna electrically coupled to said RFID reader; and a mechanical rotor configured to change a spatial orientation of said antenna, wherein said mechanical rotor is configured to rotate said antenna by a first predetermined angle around an axis which is substantially orthogonal to a printed circuit board (PCB) on which said antenna is mounted, and wherein said mechanical rotor is further configured to rotate said antenna around said axis directed under a second predetermined angle with respect to said PCB on which said antenna is mounted, and wherein said mechanical rotor is further configured to rotate said antenna by said first predetermined angle and said second predetermined angle responsive to establishing that a radio signal from said antenna has a signal strength below a pre-defined signal strength threshold. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification