Positioning device, positioning system, positioning method, and computer-readable medium
AssigneeNEC Corporation
InventorYusuke Konishi
Life of this patent
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Abstract
The disclosed embodiments include computer-implemented devices, systems, and methods that determine a position of a terminal device within a communications environment. In one embodiment, a positioning device may include a memory and one or more processors. The one or more processors may be configured to change a variable to be transmitted to a user device, to store the changed variable in the memory, and to output a first signal indicating that the user device is present in a predetermined area, based on a first variable received from the user device and the changed variable stored in the memory.
Claims13
A system for positioning a user device, the system comprising:
- a first transmission device configured to regularly transmit a first variable to the user device, wherein the first variable includes a fixed value;
- a second transmission device configured to regularly transmit a second variable to the user device,
- wherein the second transmission device is configured to receive the second variable from a positioning device,
- wherein the positioning device receives at least one of the first variable or the second variable from the user device;
- and
- the positioning device, comprising:
- a memory storing instructions;
- and
- one or more processors configured to execute the instructions to cause the positioning device to:
- change a value of the second variable at an interval and send to the second transmission device,
- store the changed value of the second variable in the memory,
- receive at least one of the first variable or the second variable sent from the user device, and
- output a first signal indicating that the user device is present in a predetermined area when at least one of the fixed value of the received first variable or a value of the received second variable matches the changed value of the second variable stored in the memory.
A method for positioning a user device, wherein a first transmission device regularly transmits a first variable to the user device, the first variable including a fixed value, and a second transmission device regularly transmits a second variable to the user device, the second transmission device receiving the second variable from a positioning device, the method, performed by the positioning device, comprising:
- changing at an interval a value of the second variable and sending to the second transmission device;
- storing the changed value of the second variable in a memory;
- receiving at least one of the first variable or the second variable sent from the user device;
- and
- outputting a first signal indicating that the user device is present in a predetermined area when at least one of the fixed value of the received first variable or a value of the received second variable matches the changed value of the second variable stored in the memory.
A non-transitory computer-readable medium storing instructions which, when executed, cause apparatus to perform operations for positioning a user device, wherein a first transmission device regularly transmits a first variable to the user device, the first variable including a fixed value, and a second transmission device regularly transmits a second variable to the user device, the second transmission device receiving the second variable from the apparatus, the operations comprising:
- changing at an interval a value of the second variable and sending to the second transmission device;
- storing the changed value of the second variable in a memory;
- receiving at least one of the first variable or the second variable sent from the user device;
- and
- outputting a first signal indicating that the user device is present in a predetermined area when at least one of the fixed value of the received first variable or a value of the received second variable matches the changed value of the variable stored in the memory.
Dependencies are inferred from the claim text.