SYSTEM FOR PROVIDING AN INDICATION OF THE PROXIMITY OF A MOVEABLE DEVICE
First Claim
1. A system for providing an indication of the proximity of a device, said system comprising:
- a first moveable device;
a second device; and
a third moveable device,said first moveable device, said second device, and said third moveable device configured to collectively perform a method, said method comprising;
said first moveable device transmitting an identification of the first moveable device to the second device;
said second device receiving the transmission of the first moveable device and retransmitting data including the identification of the first moveable device together with an indication of the proximity of the first moveable device from the second device;
said third moveable device receiving the data retransmitted by the second device in order to obtain an indication of the proximity of the first moveable device;
said first moveable device moving out of a receiving range of the second device; and
said second device measuring an amount of time elapsed since the first moveable device has moved out of the receiving range of the second device.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for providing an indication of the proximity of a moveable device. The system comprises at least a first moveable device having a transmitting means for transmitting data comprising an identification of the first device and a second device having a receiving means for receiving data from the first device and a transmitting means for transmitting data including the identification of the first device together with an indication of the proximity of the identified device. A further device with a receiving means for receiving the data transmitted by the second device can be used in order to obtain an indication of the proximity of the first device. The indication of the proximity of the first device is a scale value which degrades as the first device moves away from the second device.
-
Citations
12 Claims
-
1. A system for providing an indication of the proximity of a device, said system comprising:
-
a first moveable device; a second device; and a third moveable device, said first moveable device, said second device, and said third moveable device configured to collectively perform a method, said method comprising; said first moveable device transmitting an identification of the first moveable device to the second device; said second device receiving the transmission of the first moveable device and retransmitting data including the identification of the first moveable device together with an indication of the proximity of the first moveable device from the second device; said third moveable device receiving the data retransmitted by the second device in order to obtain an indication of the proximity of the first moveable device; said first moveable device moving out of a receiving range of the second device; and said second device measuring an amount of time elapsed since the first moveable device has moved out of the receiving range of the second device. - View Dependent Claims (2, 3)
-
-
4. A system for providing an indication of the proximity of a device, said system comprising:
-
a first moveable device; and a second device; and a third device, said first moveable device, said second device, and said third device configured to collectively perform a method, said method comprising; said first moveable device transmitting an identification of the first moveable to the second device; said second device receiving the transmission of the first moveable device and retransmitting data including the identification of the first moveable device together with an indication of the proximity of the first moveable device from the second device; said third device receiving the data retransmitted by the second device in order to obtain an indication of the proximity of the first moveable device; and transmitting one or more packets of data from the first moveable device and the second device, each packet of data including an identification of another device and an indication of the proximity of the another device, wherein each packet of data of the one or more packets of data includes a total number of times said each packet of data has been transmitted.
-
-
5. A system for providing an indication of the proximity of a device, said system comprising a second device, said second device configured to perform a method, said method comprising:
-
said second device receiving first data from a first moveable device that is within a receiving range of the second device, wherein the receiving range is a spatial distance from the second device over which the second device is configured to receive data from devices, wherein the first data comprises an identification of a moveable device of interest, a first value whose magnitude is a function of a proximity of the moveable device of interest from the second device, and a degradation formula specifying how the first value decreases as a function of a time duration over which the first moveable device is outside the receiving range after having been within the receiving range, and wherein the first value does not exceed a specified 100% value; and said second device transmitting second data to a third device, wherein the second data comprises the identification of the moveable device of interest, a second value that is a function of the first value and does not exceed the first value, and the degradation formula. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
-
Specification