Abstract: The disclosure includes a system and method for detecting fine grain copresence between users. The system includes a processor and a memory storing instructions that when executed cause the system to: transmit a wakeup signal to a plurality of devices based on coarse grain location information; send a request to a first device of the plurality of devices to transmit a token using a first communication technology to determine fine grain copresence; receive a first token acknowledgment from a first subset of the plurality of devices; send a request to a second device of the first subset of the plurality of devices to transmit the token using a second communication technology to determine fine grain copresence; receive a second token acknowledgment from a second subset of the plurality of devices; and refine copresence based on receiving the first and second token acknowledgment.

Abstract: A device location is determined, and the location of an area of interest that is a geographic area referred to as a geo-fence is identified. Multiple geo-fences can be identified by the device, and different geo-fences can be associated with different programs on the device. An operating system of the device implements multiple different periods of operation for the device, including a conservation period during which certain programs are not typically scheduled to run, and an execution period during which such programs are typically scheduled to run. A system identifies geo-fence events, which occur when the device enters or exits the geo-fence. The system maintains a record of the geo-fence events for each of multiple geo-fences, and provides to a program selected ones of those geo-fence events at a time when the program is scheduled to run on the device during an execution period of the operating system.

Abstract: A device location is determined, and the location of an area of interest that is a geographic area referred to as a geo-fence is identified. Multiple geo-fences can be identified by the device, and different geo-fences can be associated with different programs on the device. An operating system of the device implements multiple different periods of operation for the device, including a conservation period during which certain programs are not typically scheduled to run, and an execution period during which such programs are typically scheduled to run. A system identifies geo-fence events, which occur when the device enters or exits the geo-fence. The system maintains a record of the geo-fence events for each of multiple geo-fences, and provides to a program selected ones of those geo-fence events at a time when the program is scheduled to run on the device during an execution period of the operating system.

Abstract: The disclosure includes a system and method for detecting fine grain copresence between users. The system includes a processor and a memory storing instructions that when executed cause the system to receive user input regarding copresence detection settings for a first user device, the copresence detection settings comprising a location and/or a user access control list, and determine a current location of the first user device. The system may determine whether copresence detection of the first user device is enabled at the current location based on the copresence detection settings and the current location. Based on determining that copresence detection is enabled, the system may refine copresence and perform an action based on fine grain copresence of the first and second user device.

Abstract: The disclosure includes a system and method for detecting fine grain copresence between users. The system includes a processor and a memory storing instructions that when executed cause the system to: process one or more signals to determine coarse grain location information of a first device and a second device; determine whether the first device and the second device are copresent based on the coarse grain location information; in response to determining that the first device and the second device are copresent based on the coarse grain location information, transmit a signal to the second device to alert the second device to listen for a fine grain copresence token from the first device; and refine copresence based on receiving an indication that the second device has received the fine grain copresence token.

Abstract: The disclosure includes a system and method for detecting fine grain copresence between users. The system includes a processor and a memory storing instructions that when executed cause the system to: process one or more signals to determine coarse grain location information of a first device and a second device; determine whether the first device and the second device are copresent based on the coarse grain location information; in response to determining that the first device and the second device are copresent based on the coarse grain location information, transmit a signal to the second device to alert the second device to listen for a fine grain copresence token from the first device; and refine copresence based on receiving an indication that the second device has received the fine grain copresence token.

Abstract: A device location is determined, and the location of an area of interest that is a geographic area referred to as a geo-fence is identified. Multiple geo-fences can be identified by the device, and different geo-fences can be associated with different programs on the device. An operating system of the device implements multiple different periods of operation for the device, including a conservation period during which certain programs are not typically scheduled to run, and an execution period during which such programs are typically scheduled to run. A system identifies geo-fence events, which occur when the device enters or exits the geo-fence. The system maintains a record of the geo-fence events for each of multiple geo-fences, and provides to a program selected ones of those geo-fence events at a time when the program is scheduled to run on the device during an execution period of the operating system.