Abstract: A method for determining motional branch current in an ultrasonic transducer of an ultrasonic surgical device over multiple frequencies of a transducer drive signal. The method may comprise, at each of a plurality of frequencies of the transducer drive signal, oversampling a current and voltage of the transducer drive signal, receiving, by a processor, the current and voltage samples, and determining, by the processor, the motional branch current based on the current and voltage samples, a static capacitance of the ultrasonic transducer and the frequency of the transducer drive signal.

Abstract: An advertiser budget is retrieved from a data store. A set of traffic sources associated with the advertiser budget are identified. An allocated budget for the set of traffic sources is generated by allocating at least part of the advertiser budget to the set of traffic sources. At least one advertisement is delivered via a traffic source of the set of traffic sources based at least in part on the allocated budget.

Abstract: User actions responsive to a plurality of web pages are tracked and included in records in a data store. A conversion score is calculated for each traffic source of a plurality of traffic sources, the conversion score based at least in part on the tracked user actions. A traffic source quality score is calculated for each of the plurality of traffic sources, and the plurality of traffic sources are ranked based at least in part on the traffic source quality scores. The traffic sources are allocated to sets based at least in part on the ranking.

Abstract: Systems and techniques for managing multiple video sources are described. Video data for a first channel may be displayed and buffered, while video data for a second channel that is not being displayed or recorded is also being buffered. The second channel may be a previous display channel and/or a predicted future channel.

Abstract: A test system for testing a multitasking computing device, such as a RAID storage device is described. The multitasking computing device is responsive to an inject fault command by entering a pre-determined mode of operation wherein the device maintains its present state and all command processing is terminated. As a result, the device becomes non-responsive to further commands. The test system includes a plurality of test programs. Each of the test programs being operable, when executed, to (a) test an associated function of the device and (b) transmit the inject fault command to the device if the test fails. In addition, each program is further operable, when executed, to (c) discontinue testing the device if the device becomes non-responsive. The test system further includes a processor and a multitasking operating system for executing the test programs concurrently.