Nokia Corporation

University of Southern California

Murali Annavaram

Quinn Able Jacobson

Baik Hoh

Sangwon Lee

David William Sutter

Bardia Zandian

An energy conservation module may be included in a mobile communication device that receives requests for services from application programs running in the device. For each request, the energy conservation module may determine which of different, selectable ways of performing the request is likely to be the most energy efficient. The energy conservation module may then cause the request to be performed in this most energy-efficient way. This determination may be dynamic and based on current operating conditions. Middleware between the application programs and an operating system may be included that presents various APIs to the application programs to allow them to easily invoke this functionality. The different, selectable ways of performing the services may be of any type, including different, selectable computer network interfaces (e.g., Wi-Fi and cellular) and whether a complex computation should be performed within or outside of the mobile communication device.

Runtime selection of most energy-efficient approach for services requested by mobile applications

An automated guardband compensation system automatically compensates for degradation in the guardband of a clocked data processing circuit while that circuit is connected within a data processing system. A control circuit automatically and repeatedly requests: a switching circuit to switch a critical path within the clocked data processing circuit out of a data processing pathway within the data processing system while the clocked data processing circuit is connected within the data processing system; a guardband test circuit to test the guardband of the critical path while the critical path is switched out of the data processing pathway; a guardband compensation circuit to increase the guardband when the results of the test indicate a material degradation in the guardband; and a switching circuit to switch the critical path back into the data processing pathway after the test.

Automated detection of and compensation for guardband degradation during operation of clocked data processing circuit

A device for determining the traffic conditions between measurement locations associated with a roadway is provided. The device includes a processor that is capable of determining when a specified measurement location is passed or traversed and measure data as well as start a time period. If a device is traveling towards another specified measurement location but does not reach the location before the time period expires, a new measurement update may be sent by the device to a server. The information in this update may be utilized by the server to determine that there is a slowdown or blockage in traffic and/or that there is a traffic jam between the measurement locations. The device is capable of receiving a traffic update(s) from the server which may specify traffic conditions between the measurement locations. The traffic conditions may indicate that there is a traffic slowdown/blockage between the measurement locations.

Methods, apparatuses, and computer program products for traffic data aggregation using virtual trip lines and a combination of location and time based measurement triggers in GPS-enabled mobile handsets

A device for determining when a virtual trip line has been crossed or traversed is provided. The device includes a memory for storing the virtual trip lines which are defined pairs of location descriptors corresponding to a geographic area. The device further includes a processor that is capable of determining the location of the device when it crosses a virtual trip line as well as its speed and direction. The processing element is further capable of sending this information to another electronic device such as a server that may determine a number of vehicles crossing a virtual trip line for a specified amount of time, the average speed of vehicles crossing the virtual trip line and the traffic density in a region near the virtual trip line. The device is capable of receiving the information that was determined by the server.

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Los Angeles, CA, United States of America

Murali Annavaram