Abstract:
A vehicle battery charger including a charging base unit 10, a charging power supply 40 disposed in the base unit 10, and a universal serial bus (USB) port 114 disposed in the surface of the base unit 10 are provided. The charging power supply 40 provides charging power that is conveyed via cabling 14 and a pair of battery terminal clamps 16, 18 to a battery 12 needing charging. A secondary power supply 52 disposed in the base unit 10 and coupled to the USB port 114 provides electrical power for powering and/or charging an external device 116 that is coupled to the USB port 114.
Abstract:
According to various embodiments, a method 90 may include measuring a first capacitance of a sample at a first frequency using a measurement system 40, measuring a second capacitance of the sample at a second frequency using the measurement system 40, calculating a ratio of the first capacitance to the second capacitance 94, and determining a formation water resistivity or conductivity of the sample using the ratio 96.
Abstract:
Systems and methods for evaluating whether a display panel 18 is of specified dimensions are provided. Such a system, for example, may include resistance detection circuitry 68 that detects a resistance of at least one resistive trace 20 disposed around a display panel 18 or other patterned device. Data processing circuitry 284 may determine, based at least in part on the detected resistance, whether the display panel 18 is of a specified size or whether the display panel 18 has specified dimensions, or a combination thereof. Additionally or alternatively, the system may determine whether a touch sensor panel (e.g., a single-sided indium tin oxide (SITO) or double-sided indium tin oxide (DITO) touch sensor panel), a flexible printed circuit (FPC), a printed circuit board (PCB), or any other suitable patterned device, is of a specified size or has specified dimensions.
Abstract:
Disclosed embodiments relate to a display temperature detection system that can detect temperature variations in different regions of a display panel. The temperature measuring display system includes a display panel that provides graphical images. Further, the temperature measuring display system includes temperature measurement circuitry. The temperature measurement circuitry includes one or more thermal diodes, transistors, or a mesh layer useful to determine at least one temperature measurement of the display panel.
Abstract:
A system and method of generating a high dynamic range image. A single reset of an image sensor may be executed followed by two or more reads of the sensor to retrieve data. These reads of the image sensor may be done prior to a subsequent reset of the sensor. These reads may also be accomplished at predetermined times relative to one another. Data read out during these scans may be deinterleaved by an image signal processor and combined into a high dynamic range image.
Abstract:
A method and system for modifying a pulse width modulation signal for controlling the backlit illumination intensity of a liquid crystal display. The modified pulse width modulated signal may be selected to operate with at least one pulse having a first duty cycle with the remaining pulses in the pulse width modulation signal having a second duty cycle across a selected number of pulses making up a given time period (i.e., frame). By utilizing more than one duty cycle for the pulses of the pulse width modulated signal to drive light sources in a display during a given frame, the overall number of backlit illumination intensities for the liquid crystal display may be increased. By distributing the differing pulse duty cycles within a group of pulses of within a frame, visible artifacts may be reduced.
Abstract:
Systems and methods for preventing parasitic capacitances within liquid crystal displays are provided. A display panel according to an embodiment may include, for example, a pixel (42) with a pixel electrode (50) and a transistor (48) coupled to a gate line (44). Additionally, the pixel (42) may include a shielding conductor (76) interposed between the pixel electrode (50) and the gate line (44). The shielding conductor (76) may shield the pixel electrode (50) from a parasitic capacitance with the gate line (44) by causing a parasitic capacitance (78) to form between the gate line (44) and the shielding conductor (76) instead of between the gate line (44) and the pixel electrode (50).
Abstract:
Various techniques are provided for the detection and correction of defective pixels in an image sensor 90. In accordance with one embodiment, a static defect table storing the locations of known static defects is provided, and the location of a current pixel is compared to the static defect table. If the location of the current pixel is found in the static defect table, the current pixel is identified as a static defect and is corrected using the value of the previous pixel of the same color. If the current pixel is not identified as a static defect, a dynamic defect detection process 444 includes comparing pixel-to-pixel gradients between the current pixel a set of neighboring pixels against a dynamic defect threshold. If a dynamic defect is detected, a replacement value for correcting the dynamic defect may be determined by interpolating the value of two neighboring pixels on opposite sides of the current pixel in a direction exhibiting the smallest gradient.
Abstract:
An edge-lit backlight unit for a display is provided. In one embodiment, the backlight unit may include a light guide configured to receive light from a source and emit such light in a broad distribution to a turning film disposed over the light guide. The turning film may be configured to redirect light received from the light guide toward a normal of the turning film. In one embodiment, the light guide may be configured such that peak light distribution therefrom occurs at an incident angle of approximately sixty degrees, with broad light distribution substantially occurring over an angular range between incident angles of thirty-five and eighty- five degrees. Additionally, in one embodiment, the turning film may include multiple prisms that receive and redirect the light emitted from the light guide, and that include apex angles of less than or about sixty degrees. Additional edge-lit backlight units and methods are also disclosed.
Abstract:
Systems and methods are provided, such as those that enable identification of data flows and corresponding results in a pattern-recognition processor. In one embodiment, a system may include the pattern-recognition processor and a flow identification register, wherein a unique flow identifier (FlowID) for each data flow is stored in the register. The system may include a results buffer that stores the results data (Results Data) and the flow identifier (FlowID) for each data flow, so that the results data (Results Data) may be related to a specific data flow.