Abstract: Described herein are systems and methods for assessing a biological sample. The methods include: characterizing a speckled pattern to be applied by a diffuser; positioning a biological sample relative to at least one coherent light source such that at least one coherent light source illuminates the biological sample; diffusing light produced by the at least one coherent light source; capturing a plurality of illuminated images with the embedded speckle pattern of the biological sample based on the diffused light; iteratively reconstructing the plurality of speckled illuminated images of the biological sample to recover an image stack of reconstructed images; stitching together each image in the image stack to create a whole slide image, wherein each image of the image stack at least partially overlaps with a neighboring image; and identifying one or more features of the biological sample. The methods may be performed by a near-field Fourier Ptychographic system.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for microbial sampling of foods. For example, a method may include providing at least one aggregating sampler at one or more sampling locations, and sampling a production lot of produce or other food items such as meat using the at least one aggregating sampler to create one or more samples that makes up a microbial sampling. Certain aspects of the present disclosure relate to methods and apparatus for microbial sampling of foods. For example, an apparatus, such as a microbial aggregating sampler, may include a covering having a microbial sampling material with a pocket formed in the covering to receive an appendage or a tool for handling of the covering.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for microbial sampling of foods. For example, a method may include providing at least one aggregating sampler at one or more sampling locations, and sampling a production lot of produce or other food items such as meat using the at least one aggregating sampler to create one or more samples that makes up a microbial sampling. Certain aspects of the present disclosure relate to methods and apparatus for microbial sampling of foods. For example, an apparatus, such as a microbial aggregating sampler, may include a covering having a microbial sampling material with a pocket formed in the covering to receive an appendage or a tool for handling of the covering.

Abstract: Perceived clarity of an image presented by a display can be improved using an image stabilization technique to stabilize the image relative to a user's retina. During an illumination period, stabilization actuators are controlled to move a display panel or adjust optical components in the path of light associated with the image to shift the location of the image on the user's retina in response to head or eye movement detected by the system. In some embodiments, a display is configured to illuminate an image, and at least one stabilization actuator is configured to stabilize the image in a retina space associated with a user. Changes in the retina space can be detected by one or more sensors configured to detect a head position of the user and/or an orientation of the user's retina. The image is stabilized in retina space using the stabilization actuators.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for microbial sampling of foods. For example, a method may include providing at least one aggregating sampler at one or more sampling locations, and sampling a production lot of produce or other food items such as meat using the at least one aggregating sampler to create one or more samples that makes up a microbial sampling. Certain aspects of the present disclosure relate to methods and apparatus for microbial sampling of foods. For example, an apparatus, such as a microbial aggregating sampler, may include a covering having a microbial sampling material with a pocket formed in the covering to receive an appendage or a tool for handling of the covering.

Abstract: A system and method are provided for controlling a modified buck converter circuit. A pull-up switching mechanism that is coupled to an upstream terminal of an inductor within a modified buck converter circuit is enabled. A load current at the output of the modified buck regulator circuit is measured. A capacitor current associated with a capacitor that is coupled to a downstream terminal of the inductor is continuously sensed and the pull-up switching mechanism is disabled when the capacitor current is greater than a sum of the load current and an enabling current value.

Abstract: Perceived clarity of an image presented by a display can be improved using an image stabilization technique to stabilize the image relative to a user's retina. During an illumination period, stabilization actuators are controlled to move a display panel or adjust optical components in the path of light associated with the image to shift the location of the image on the user's retina in response to head or eye movement detected by the system. In some embodiments, a display is configured to illuminate an image, and at least one stabilization actuator is configured to stabilize the image in a retina space associated with a user. Changes in the retina space can be detected by one or more sensors configured to detect a head position of the user and/or an orientation of the user's retina. The image is stabilized in retina space using the stabilization actuators.

Abstract: A magnetic power supply coupling system is disclosed. An integrated circuit module includes an integrated circuit die and a secondary winding that is configured to generate an induced, alternating current based on a magnetic flux. A primary winding is external to the integrated circuit module, proximate to the integrated circuit module, and coupled to a main power supply corresponding to an alternating current that generates the magnetic flux. The induced, alternating current is converted into a direct current at a voltage level to supply power to the integrated circuit die.

Abstract: A method, computer readable medium, and system generate a low-latency image for display. The method includes the steps of receiving a portion of an image for display, selecting a pulse-width value for displaying the portion of the image, and driving a display device to present the portion of the image using a pulse-width value and pulse density modulation value. Logic circuits for implementing the method may be included in a graphics processing unit or within a display device. The portion of the image for display may be rendered based on real-time position information associated with a head-mounted display.

Abstract: A system and method are provided for controlling a modified buck converter circuit. A pull-up switching mechanism that is coupled to an upstream terminal of an inductor within a modified buck converter circuit is enabled. A load current at the output of the modified buck regulator circuit is measured. A capacitor current associated with a capacitor that is coupled to a downstream terminal of the inductor is continuously sensed and the pull-up switching mechanism is disabled when the capacitor current is greater than a sum of the load current and an enabling current value.

Abstract: A system and method are provided for controlling a modified buck converter circuit. A pull-up switching mechanism that is coupled to an upstream terminal of an inductor within a modified buck converter circuit is enabled. A load current at the output of the modified buck regulator circuit is measured. A capacitor current associated with a capacitor that is coupled to a downstream terminal of the inductor is continuously sensed and the pull-up switching mechanism is disabled when the capacitor current is greater than a sum of the load current and an enabling current value.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for microbial sampling of foods. For example, a method may include providing at least one aggregating sampler at one or more sampling locations, and sampling a production lot of produce or other food items such as meat using the at least one aggregating sampler to create one or more samples that makes up a microbial sampling. Certain aspects of the present disclosure relate to methods and apparatus for microbial sampling of foods. For example, an apparatus, such as a microbial aggregating sampler, may include a covering having a microbial sampling material with a pocket formed in the covering to receive an appendage or a tool for handling of the covering.

Abstract: A system and method are provided for controlling a modified buck converter circuit. A pull-up switching mechanism that is coupled to an upstream terminal of an inductor within a modified buck converter circuit is enabled. A load current at the output of the modified buck regulator circuit is measured. A capacitor current associated with a capacitor that is coupled to a downstream terminal of the inductor is continuously sensed and the pull-up switching mechanism is disabled when the capacitor current is greater than a sum of the load current and an enabling current value.

Abstract: An online system presents advertisements itself and provides advertisements to third party systems. To mitigate different amounts interactions performed by users presented with advertisements via the online system or presented via a third party system, the online system modifies bid amounts associated with advertisements based on a difference in a number of interactions performed by users presented with advertisements via the online system and a number of interactions performed by users presented with advertisements via a third party system. Based on the difference in interactions performed by users presented with advertisements via the online system and via the third party system, the online system modifies bid amounts associated with advertisements. When the third party system requests an advertisement from the online system, the online system selects an advertisement for the third party system using the modified bid amounts.

Abstract: A method, computer readable medium, and system generate a low-latency image for display. The method includes the steps of receiving a portion of an image for display, selecting a pulse-width value for displaying the portion of the image, and driving a display device to present the portion of the image using a pulse-width value and pulse density modulation value. Logic circuits for implementing the method may be included in a graphics processing unit or within a display device. The portion of the image for display may be rendered based on real-time position information associated with a head-mounted display.

Abstract: One embodiment of the present invention sets forth a mechanism for transmitting and receiving differential signals. A transmitter combines a direct current (DC) to DC converter including a capacitor with a 2:1 multiplexer to drive a pair of differential signaling lines. The transmitter drives a pair of voltages that are symmetric about the ground power supply level. Signaling currents are returned to the ground plane to minimize the generation of noise that is a source of crosstalk between different differential signaling pairs. Noise introduced through the power supply is correlated with the switching rate of the data and may be reduced using an equalizer circuit.

Abstract: A magnetic power supply coupling system is disclosed. An integrated circuit module includes an integrated circuit die and a secondary winding that is configured to generate an induced, alternating current based on a magnetic flux. A primary winding is external to the integrated circuit module, proximate to the integrated circuit module, and coupled to a main power supply corresponding to an alternating current that generates the magnetic flux. The induced, alternating current is converted into a direct current at a voltage level to supply power to the integrated circuit die.

Abstract: A system is provided for transmitting signals. The system comprises a first processing unit, a cache memory, and a package. The first processing unit comprises a first ground-referenced single-ended signaling (GRS) interface circuit and the second processing unit comprises a second GRS interface circuit. The cache memory comprises a third and a fourth GRS interface circuit. The package comprises one or more electrical traces that couple the first GRS interface to the third GRS interface and couple the second GRS interface to the fourth GRS interface, where the first GRS interface circuit, the second GRS interface, the third GRS interface, and the fourth GRS interface circuit are each configured to transmit a pulse along one trace of the one or more electrical traces by discharging a capacitor between the one trace and a ground network.

Abstract: A free space line of site communication system for communicating between a first destination and a second destination includes a constellation of airborne platforms in a train-like formation, each travelling at a constant speed and distance relative to each other. Each of the airborne platforms includes: one or more inter-airborne platform optical or RF transceivers for communication with a previous and a next neighboring airborne platforms, wherein each inter-airborne platform transceiver is capable of adjusting its velocity to keep a constant speed and distance relative to its neighboring airborne platforms, and one or more up/down link transceivers for communication with multiple ground sites, each ground site having two or more ground optical or RF transceivers. A first airborne platforms closest to the first destination communicates with the first destination and a second airborne platforms closest to the second destination communicates with the second destination.

Abstract: Techniques are described for presenting streaming media content to users in an engaging manner. A streaming media player may provide an interface that allows users to browse though a collection of available titles sorted into different categories (e.g., science fiction titles, television shows, westerns, etc.). The interface may be configured to automatically begin playback of one of the media titles at a designated insertion point, providing a user with a preview of the title. The insertion point itself may be selected as an interesting point in a given title, and therefore, likely to engage a user in that title.