Method and system for enabling device functions based on distance information
First Claim
1. A method of enabling device functions in a local device using timing information, the method including:
- transmitting a message from the local device to a primary remote device via an ultra wide band (UWB) wireless medium;
receiving at the local device a response transmitted from the primary remote device via the UWB wireless medium;
determining a primary time period between a first time for the transmitting the message and a second time for the receiving the response;
determining a primary distance from the local device to the primary remote device based on the primary time period;
selectively enabling communications between the local device and the primary remote device based on the primary distance.
19 Assignments
0 Petitions
Accused Products
Abstract
A method, device and computer readable medium for enabling and blocking communications with a remote device based on a distance of the remote device. The method on which the device and computer readable medium are based includes transmitting a message from a local device to a remote device via an ultra wide band (UWB) wireless medium and receiving a response from the remote device via the UWB wireless medium. The transmitting and receiving steps are preferably performed in accordance with a Media Access Control (MAC) protocol. A distance between the local device and the remote device is then determined based on a time between the transmitting of the message and the receiving of the response and a function, such as communicating with the remote device, is performed in the local device based on the distance determined. The communication between the local device and the remote device may be enabled or disabled depending on the distance that the remote device is from the local device. In addition, the distance information for a remote device may be continually updated, or updated only if communication to the remote device are blocked. A positional map may be generated based on distance data determined for a plurality of reference points and the user may select the remote device from the positional map to enable communications to the positional map.
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Citations
20 Claims
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1. A method of enabling device functions in a local device using timing information, the method including:
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transmitting a message from the local device to a primary remote device via an ultra wide band (UWB) wireless medium; receiving at the local device a response transmitted from the primary remote device via the UWB wireless medium; determining a primary time period between a first time for the transmitting the message and a second time for the receiving the response; determining a primary distance from the local device to the primary remote device based on the primary time period; selectively enabling communications between the local device and the primary remote device based on the primary distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An ultra wide band (UWB) wireless local communications device comprising:
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a transceiver configured to transmit a message to a primary remote device, and receive a response transmitted from the primary remote device; a memory for storing enabling parameters; and a processor configured to determine a primary time period between a first time for the transmitting of the message and a second time for the receiving of the response, and configured to determine a primary distance from the local communications device to the primary remote device based on the primary time period; and a control circuit for selectively enabling communications between the local communications device and the primary remote device based on the primary distance. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An ultra wide band (UWB) wireless local communications device comprising:
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means for transmitting a message from the local communications device to a primary remote device via an ultra wide band (UWB) wireless medium; means for receiving a response transmitted from the primary remote device via the UWB wireless medium; means for determining a primary time period between a first time for the transmitting of the message and a second time for the receiving of the response; means for determining a primary distance between the local device and the primary remote device based on the primary time period; and means for selectively enabling communications between the local device and the primary remote device based on the primary distance. - View Dependent Claims (19, 20)
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Specification