Facebook, Inc.

College of William and Mary

Dung Nguyen Tien

Francislav Petrov Penov

Damian Kowalewski

Eran Tal

Martin Rehwald

Aidymar Bigio

Georgiy Yakovlev

Siyin Yang

Anupma Chhabra

Zachary Chee-Ping Lawrence

Rizwan Ahmad

Angelica Estefania Escareno

Fraidun Akhi

Jonathan Cook

Gang Zhou

Sridhar Rao

Xin Qi

Particular embodiments of a gateway computing device may provide a provisioning service for access credentials for a restricted network. The gateway computing device may receive, from a client device, a request for the access credentials, wherein the request was sent over an open network using a restricted-packet-size protocol designed to limit power usage by devices sending messages using the protocol. The gateway computing device may segment data comprising the access credentials into a plurality of packets, wherein the plurality of packets conform to the restricted-packet-size protocol. Finally, the gateway computing device may send, over the open network to the client device, the segmented data using the restricted-packet-size protocol.

Managing a device cloud

In one embodiment, a method includes receiving a command message from a client device associated with a user; parsing the command message; identifying, based on the parsed command message, one or more of a number of connected devices; determining, based on the parsed command message, one or more instructions for the identified connected devices; and providing the instructions to the identified connected devices.

Controlling a device cloud

Particular embodiments of a gateway computing device provide a provisioning service for access credentials to a restricted network, wherein the provisioning service is accessible by an open network. A messaging protocol for the open network may only recognize messages relating to one of a set of services provided by the gateway computing device, including the provisioning service. The gateway computing device may receive, from a client device, a request to connect to the restricted network, wherein the request was sent using the open network. Upon determining whether the client device is authorized to access the restricted network, the gateway computing device may send a response to the client device using the open network.

In one embodiment, a method includes receiving a natural-language message including an authorization request to authorize a first user access to one or more of a number of connected devices associated with a second user; parsing the natural-language message; identifying, based on the parsed natural-language message, the first user and one or more of a number of connected devices; implicitly determining that the first user is authorized to access the identified one or more of the number of connected devices based on a calculated strength of a relationship between a node representing the first user in a social graph and a node representing the second user in the social graph satisfying a pre-determined threshold; and providing, based on the implicit authorization, access to the identified one or more of the number of connected devices.

In one embodiment, a method includes receiving notifications of events associated with the connected devices, evaluating a plurality of event sequences that include two or more events occurring within a particular time period, and generating a plurality of rules based on the evaluated event sequences. The method further includes receiving a notification of a first event associated with a first connected device on the network, determining that a first rule of the plurality of rules is based on the first event, and sending one or more instructions to connected devices in accordance with the first rule.

Rules engine for connected devices

A method is performed at an electronic device with a display, one or more processors, volatile memory, and non-volatile memory that stores one or more programs for execution by the one or more processors. The method includes periodically comparing an amount of free volatile memory to a threshold level. The amount of free volatile memory is compared to the threshold level with a first periodicity when the display is off and with a second periodicity that is shorter than the first periodicity when the display is on. The method also includes, in response to a determination that the amount of free volatile memory does not satisfy the threshold level, deallocating volatile memory by terminating one or more processes based on priority levels of the one or more processes.

Methods and systems for managing memory allocation

An electronic device with volatile memory repeatedly compares an amount of free volatile memory to a first predetermined threshold level of free volatile memory. When the device determines that the amount of free volatile memory is less than the first predetermined threshold level, the device deallocates volatile memory by terminating one or more processes based on predetermined priority levels of the one or more processes.

A method of affecting power used by an electronic device is provided for an electronic device having storage media and running at least one application. Each application interfaces with the storage media through an input/output (I/O) path executing I/O activities that access the storage media in accordance with configurable parameters of the I/O path. A run-time I/O pattern defined by the I/O activities is determined during a run-time period of the electronic device. At least one of the I/O path's configurable parameters is then modified based on the run-time I/O pattern. The method is readily adapted for power conservation by providing selections for the configurable parameters with each of the selections optimizing power usage for a hypothetical I/O pattern. Then, one or more configurable parameters are modified in accordance with one of the selections for which the hypothetical I/O pattern associated therewith is closest to the run-time I/O pattern.

Growing community of inventors

Newport News, VA, United States of America

Dung Nguyen Tien