Methods and systems for synchronized ultrasonic real time location
DCFirst Claim
1. A system comprising:
- a server;
one or more portable devices, each portable device having a respective portable device ID;
one or more ultrasonic base stations;
a plurality of RF base stations coupled to a backbone network, at least a first RF base station of the plurality of RF base stations configured to transmit timing synchronization information (TSI) to the one or more ultrasonic base stations, wherein;
one ultrasonic base station of the one or more ultrasonic base stations is configured to receive the TSI and to transmit an ultrasonic signal including an ultrasonic base station ID at a time determined from the received TSI, the ultrasonic base station ID being associated with a location of the one ultrasonic base station;
the portable device is configured;
1) to detect the ultrasonic base station ID from the received ultrasonic signal,
2) to store the ultrasonic base station ID as a digital value, and
3) to transmit an RF output signal including the ultrasonic base station ID and the portable device ID to a second RF base station of the plurality of RF base stations;
the second RF base station is configured to
1) receive the signal from portable device, and
2) send the portable device ID and the ultrasonic base station ID to the server; and
the server is configured to receive the portable device ID and the ultrasonic base station ID from the second RF base station and to associate the portable device having the portable device ID with the location of the ultrasonic base station having the base station ID.
2 Assignments
Litigations
1 Petition
Accused Products
Abstract
Methods and systems for determining a location and an identity of a portable device are provided. The system includes apparatus for transmitting timing synchronization information, a plurality of stationary ultrasonic base stations and a plurality of portable devices. Each ultrasonic base station is configured to receive the timing synchronization information and to transmit a corresponding ultrasonic location code in a time period based on the received timing synchronization information. Each portable device is configured to: 1) receive the timing synchronization information, 2) detect the ultrasonic location codes from the ultrasonic base stations and 3) transmit an output signal including a portable device ID representative of the portable device and the detected ultrasonic location code. Each portable device is synchronized to detect the ultrasonic location code in the time period based on the received timing synchronization information.
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Citations
35 Claims
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1. A system comprising:
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a server; one or more portable devices, each portable device having a respective portable device ID; one or more ultrasonic base stations; a plurality of RF base stations coupled to a backbone network, at least a first RF base station of the plurality of RF base stations configured to transmit timing synchronization information (TSI) to the one or more ultrasonic base stations, wherein; one ultrasonic base station of the one or more ultrasonic base stations is configured to receive the TSI and to transmit an ultrasonic signal including an ultrasonic base station ID at a time determined from the received TSI, the ultrasonic base station ID being associated with a location of the one ultrasonic base station; the portable device is configured;
1) to detect the ultrasonic base station ID from the received ultrasonic signal,
2) to store the ultrasonic base station ID as a digital value, and
3) to transmit an RF output signal including the ultrasonic base station ID and the portable device ID to a second RF base station of the plurality of RF base stations;the second RF base station is configured to
1) receive the signal from portable device, and
2) send the portable device ID and the ultrasonic base station ID to the server; andthe server is configured to receive the portable device ID and the ultrasonic base station ID from the second RF base station and to associate the portable device having the portable device ID with the location of the ultrasonic base station having the base station ID. - View Dependent Claims (21, 22, 23, 24, 25)
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2. A system comprising:
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A server; first and second transceiver base stations; a plurality of location base stations having a respective plurality of location base station IDs, each location base station ID being associated with a respective location; and a plurality of portable tags having a respective plurality of tag IDs; wherein; the first transceiver base station is configured to transmit timing synchronization information (TSI) via a first type of communication technology to one or more of the plurality of location base stations; one location base station of the one or more location base stations is configured to receive the TSI via the first type of communication technology, and to transmit a signal including its respective location base station ID at a time determined from the received TSI, via a second type of communication technology, different from the first type of communication technology; at least one portable tag of the plurality of portable tags is configured;
1) to receive the signal corresponding to the second type of communication technology,
2) to detect timing information and the location base station ID from the received signal,
3) to store the detected location base station ID, and
4) to transmit, via the first type of communication technology and at a time determined from the timing information, a communication signal including the stored base station ID and the tag ID to the second transceiver base station; andthe second transceiver base station is configured;
1) to receive the communication signal from the portable tag,
2) to transmit the tag ID and the location base station ID in the received communication signal to the server, andthe server is configured to associate the portable tag with the respective location associated with the location base station ID. - View Dependent Claims (3, 4, 5, 6, 26, 27, 28, 29, 30)
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7. A system comprising:
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a server; a plurality of portable devices, each portable device having a respective portable device ID; one or more ultrasonic base stations; a plurality of RF base stations coupled to a backbone network, at least a first RF base station of the plurality of RF base stations configured to receive timing synchronization information (TSI) from a time server and to transmit the TSI to the one or more ultrasonic base stations, wherein; at least one ultrasonic base station of the one or more ultrasonic base stations is configured to receive the TSI and to transmit an ultrasonic signal including a corresponding ultrasonic base station ID at a time determined from the received TSI, the ultrasonic base station ID being associated with a location of the one ultrasonic base station; at least one portable device of the plurality of portable devices is configured;
1) to receive the ultrasonic signal,
2) to detect timing information and the ultrasonic base station ID from the received ultrasonic signal,
3) to store the detected ultrasonic base station ID as a digital value, and
4) to transmit an RF output signal including the stored ultrasonic base station ID and the respective portable device ID to a second RF base station of the plurality of RF base stations at a time determined from the timing information; andthe second RF base station is configured;
1) to receive the RF output signal including the ultrasonic base station ID and the portable device ID, and
2) to send the ultrasonic base station ID and the portable device ID to the server;the server, responsive to receiving the ultrasonic base station ID and the portable device ID is configured to associate the portable device with the location of the one ultrasonic base station. - View Dependent Claims (8, 31, 32, 33)
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9. A system comprising:
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a server; a plurality of transceiver base stations; one or more location base stations, each location base station having a respective location base station ID and being associated with a respective location; and a portable tag having a tag ID; wherein; a first transceiver base station of the plurality of transceiver base stations is configured to transmit timing synchronization information (TSI) in a first frequency band to the one or more location base stations; at least one location base station of the one or more location base stations is configured to receive the TSI in the first frequency band, and to transmit a signal including its respective location base station ID at a time determined from the received TSI, in a second frequency band, different from the first frequency band; the portable tag is configured;
1) to receive a signal in the second frequency band,
2) to detect timing information and the location base station ID from the received signal in the second frequency band,
3) to store the detected location base station ID,
4) to transmit, in the first frequency band, a communication signal including the stored location base station ID and the stored tag ID to a second transceiver base station of the plurality of transceiver base stations; andthe second transceiver base station is configured;
1) to receive the communication signal, in the first frequency band from the portable tag, and
2) to send the tag ID and the location base station ID to the server;the server is configured to receive the tag ID and the location base station ID from the second transceiver base station and to associate the portable tag with the respective location associated with the detected location base station ID. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A system comprising:
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a plurality of RF base stations coupled to a backbone network, wherein a master RF base station, from the plurality of RF base stations, is configured to receive timing synchronization information (TSI) from a timing server, wherein; the master RF base station is configured to; transmit, to the other RF base stations including a first RF base station, (i) the TSI that includes a time of origin and, (ii) a master ID identifying the master RF base station; and wherein, the first RF base station is configured to; receive the TSI and the master ID; transmit, to the other RF base stations including the master RF base station (i) the TSI and a time offset relative to the time of origin received from the master base station, and (ii) a first ID identifying the first RF base station. - View Dependent Claims (16, 17, 18, 19, 20, 34, 35)
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Specification