Abstract: Techniques described herein generally include methods and systems related to a MEMS-based audio speaker system that includes a first movable element, formed from a first layer of a semiconductor substrate, and a second movable element, formed from a second layer of the semiconductor substrate that is a different layer than the first layer of the semiconductor substrate. The first movable element may be configured to oscillate along a first directional path substantially orthogonal to the first plane.

Abstract: Techniques described herein generally include methods and systems related to a speaker device comprises a planar oscillation element configured to generate an ultrasonic acoustic signal, a shutter element, a first comb drive, and a second comb drive. The shutter element is configured to cover an opening that is positioned to receive the ultrasonic acoustic signal to modulate the ultrasonic acoustic signal such that an audio signal is generated. The first comb drive is coupled to the shutter element and configured to displace the shutter element in a first direction and the second comb drive is coupled to the shutter element and configured to displace the shutter element in a second direction.

Abstract: Technologies are generally described for systems, devices and methods effective to detect a potential attack on a memory of a memory device. In some examples, a processor may send a request to the memory device. The request may include a request for information that relates to memory writes to the memory of the memory device. The processor may receive a response from the memory device. The response may include the information that relates to the memory writes. The processor may determine, based on the response, an amount of memory of the memory device written to during an interval of time. The processor may detect the potential attack based on the amount of memory written to and based on the interval of time. The processor may then generate an alert based on the detection of the potential attack.

Abstract: Techniques described herein generally include methods and systems related to a MEMS-based audio speaker system configured with multiple speaker devices to generate an audio signal that is substantially without a high-band ultrasonic signal. Energy may be transferred to a low frequency sideband of the audio signal output and substantially eliminated from the high frequency sideband of the audio signal by passing an acoustic carrier signal through two different modulators. One modulator may implement a first modulation function on the acoustic carrier signal to generate a first audio signal, where the first modulation function may be based on a target acoustic output signal for the MEMS-based audio speaker system. The second modulator may implement a second modulation function on the acoustic carrier signal to generate a second audio signal, where the second audio signal may be the Hilbert transform of the first audio signal.

Abstract: Technologies are generally described for systems, devices and methods effective to monitor performance of a computing device. A computing device may receive a specified counting rate. The computing device may count at the specified counting rate to generate a sequence of counting numbers. The computing device may identify a first output of a process, such as results from computations performed on data, and may identify a first counting number when the first output is identified. The computing device may identify a second output of the process, such as additional results from the computations, and may identify a second counting number when the second output is identified. The computing device may then determine whether an alert should be generated based on the first and second counting numbers such as when a difference between the first and second counting numbers exceeds a threshold value.

Abstract: Technologies are generally described for concurrent activation of multiple illumination sources to analyze a sample. A controller may be configured to activate the illumination sources substantially simultaneously, where a current or voltage of each activated illumination source is modulated at a different frequency by respective circuit drivers of the controller. Each activated illumination source may be configured to illuminate the sample with light at a different emission wavelength, and one or more detectors may be configured to detect a composite signal from the sample in response to the illumination. The composite signal may include multiple returned signals, where each returned signal corresponds to light emitted from one of the activated illumination sources at a respective emission wavelength. One or more filters, each associated with a respective modulation frequency of one activated illumination source, may be configured to extract each returned signal from the composite signal for analysis.

Abstract: Technologies are generally disclosed for methods and systems for providing secure document storage and retrieval services. In an example embodiment, a method includes receiving an exclusive address at which to send secure links, receiving a request to store a document, storing the document with a remote storage service, receiving location information from the remote storage service, transmitting the location information at which the document is stored to the exclusive address, and updating the location information dynamically.

Abstract: Technologies are generally described for systems, devices and methods effective to detect a potential attack on a memory of a memory device. In some examples, a processor may send a request to the memory device. The request may include a request for information that relates to memory writes to the memory of the memory device. The processor may receive a response from the memory device. The response may include the information that relates to the memory writes. The processor may determine, based on the response, an amount of memory of the memory device written to during an interval of time. The processor may detect the potential attack based on the amount of memory written to and based on the interval of time. The processor may then generate an alert based on the detection of the potential attack.

Abstract: Techniques described herein generally relate to generating an audio signal with a speaker. In some examples, a speaker device is described that includes a membrane and a shutter. The membrane can be configured to oscillate along a first directional path and at a first frequency effective to generate an ultrasonic acoustic signal. The shutter can be positioned about the membrane and configured to modulate the ultrasonic acoustic signal such that an audio signal can be generated.

Abstract: In some examples, an optical fiber may include a clad portion and an exposed fiber core that extends from the clad portion. Multiple such optical fibers may be included in a fiber bundle having a condensed region of fiber cores spaced at a first center-to-center spacing and a non-condensed region of clad portions spaced at a second center-to-center spacing greater than the first center-to-center spacing. Such optical fibers may be formed with exposed fiber cores ab initio.

Abstract: Thermal conductive compositions, methods for their preparation, and use are provided, which include, for example, as thermal sinks, heat transfer systems, and other uses.

Abstract: Techniques described herein generally include methods and systems related to a MEMS-based audio speaker system configured for generating an audio signal. The speaker system includes one or more apertures in the speaker system positioned to receive the ultrasonic carrier signal and one or more movable and over-sized obstruction elements that are configured to modulate the ultrasonic carrier signal and thereby generate an audio signal. Because the movable obstruction elements are configured to overlap one or more edges of the apertures when in the closed position, modulation depth of the generated audio signal can be substantially improved or otherwise varied.

Abstract: Technologies are generally described to establish a hardware interconnect based communication between SSD controllers. According to some examples, a first solid state drive (SSD) controller and a second SSD controller are detected. The hardware interconnect is detected between the first SSD controller and the second SSD controller. Next, a communication connection between the first SSD controller and the second SSD controller is established through the hardware interconnect. The first SSD controller may be allowed to manage a flash controller of the second SSD controller for tasks that include a deduplication task and a low level redundant array of independent disks (RAID) task.

Abstract: Technologies are generally disclosed for methods and systems for providing secure document storage and retrieval services. In an example embodiment, a method includes receiving an exclusive address at which to send secure links, receiving a request to store a document, storing the document with a remote storage service, receiving location information from the remote storage service, transmitting the location information at which the document is stored to the exclusive address, and updating the location information dynamically.

Abstract: Techniques described herein generally relate to generating an audio signal with a speaker. In some examples, a speaker device is described that includes a membrane and a shutter. The membrane can be configured to oscillate along a first directional path and at a first frequency effective to generate an ultrasonic acoustic signal. The shutter can be positioned about the membrane and configured to modulate the ultrasonic acoustic signal such that an audio signal can be generated.

Abstract: Technologies are generally described for systems, devices and methods effective to utilize a solid state memory device. A memory device may include one or more input/output ports effective to receive data at, and facilitate transfer from, the memory device. The memory device may further include a memory controller. The memory controller may be effective to control access to data stored in the memory device. The memory device may further include two or more flash chips effective to store data in the memory device. The memory device may further include a crossbar switch. The crossbar switch may be coupled between the one or more input/output ports and the two or more flash chips. The crossbar switch may be effective to enable the one or more input/output ports to access the two or more flash chips through the memory controller.

Abstract: A light emitting diode (LED) device and packaging for same is disclosed. In some aspects, the LED is manufactured using a vertical configuration including a plurality of layers. Certain layers act to promote mechanical, electrical, thermal, or optical characteristics of the device. The device avoids design problems, including manufacturing complexities, costs and heat dissipation problems found in conventional LED devices. Some embodiments include a plurality of optically permissive layers, including an optically permissive cover substrate or wafer stacked over a semiconductor LED and positioned using one or more alignment markers.

Abstract: Optical apparatus includes a semiconductor substrate and one or more radiation sources, mounted on a surface of the substrate and configured to emit optical radiation. A scanning mirror is mounted on the substrate and is configured to scan the reflected optical radiation over a predetermined angular range in a direction that is angled away from the surface.

Abstract: A light emitting diode (LED) device and packaging for same is disclosed. In some aspects, the LED is manufactured using a vertical configuration including a plurality of layers. Certain layers act to promote mechanical, electrical, thermal, or optical characteristics of the device. The device avoids design problems, including manufacturing complexities, costs and heat dissipation problems found in conventional LED devices. Some embodiments include a plurality of optically permissive layers, including an optically permissive cover substrate or wafer stacked over a semiconductor LED and positioned using one or more alignment markers.

Abstract: Technologies are generally described to coordinate group members that may be at distinct locations and optionally moving in distinct directions to meet at a coordinated meeting point and/or to move in a common direction. A coordinated meeting point may optimize a parameter of interest for each of the group members or group as a whole. Example parameters may include distance, time, fuel usage, remaining resource levels, a network coverage, and group members' patience, mood, and/or tiredness factors. In some examples, a controller may determine the meeting point that minimizes a parameter of interest for the group members or whole group, where the meeting point may be stationary or dynamic. The controller may map the calculated meeting point to a geographical location, and may determine an optimal or preferred route from each group member to the meeting point to gather the group members together optimizing for a particular parameter of interest.