Abstract: A device and methods are provided for calculating depth estimation for a digital imaging device are disclosed and claimed. In one embodiment, a method includes detecting a first image associated with a first focus parameter, detecting a second image associated with a second focus parameter, calculating a statistical representation of a region of interest in the first and second images, and determining a ratio for the region of interest based on the statistical representation. The method may further include determining one or more focus characteristics using a memory table based on the determined ratio for the region of interest, and calculating a focus depth for capture of image data based on the determined one or more focus characteristics associated with the memory table.

Abstract: A method and apparatus of image processing is disclosed. The method and apparatus accomplish image processing by separating a luma component and a chroma component of an image signal. Averaging of at least some of the image pixels of the luma component is done over a plurality of image pixels to provide a plurality of surround function values. Retinex-like processing of the luma component is done using the surround function values to provide a Retinex-like processed luma component. The Retinex-like processed luma component is added to the chroma component of the image signal to provide a processed image signal.

Abstract: According to one embodiment, a graphics/video processor includes a memory controller. The memory controller includes a first arbiter that receives memory client requests to access a memory device, and a first memory buffer coupled to the first arbiter. The first arbiter stores client requests that are selected by the first arbiter. The memory controller also includes a second arbiter coupled to the first memory buffer and a second memory buffer coupled to the second arbiter. The second arbiter receives requests from the memory client requests stored in the first memory buffer. The second memory buffer stores the client requests selected by the second arbiter. Further, the memory controller includes a third arbiter coupled to the second memory buffer. The third arbiter provides access of the memory device to the client requests stored in the second memory buffer.

Abstract: A device and methods are provided for adaptive bandwidth allocation for memory of a device are disclosed and claimed. In one embodiment, a method includes receiving, by a memory interface of the device, a memory access request from a first client of the memory interface, and detecting available bandwidth associated with a second client of the memory interface based on the received memory access request. The method may further include loading a counter, by the memory interface, for fulfilling the access request, wherein the counter is loaded to include bandwidth associated with the first client and the available bandwidth associated with the second client, and granting the memory access request for the first client based on bandwidth allocated for the counter.

Abstract: A noise reduction apparatus is presented that includes groups of one or more serially connected non-linear filter units. Each of the filter unit groups are driven by decimated input image data at a different level of decimation and the output of at least one of these groups serves as one of a plurality of inputs to another group driven at a different decimation level.

Abstract: Systems and methods which implement degeneration circuitry in a single-ended amplifier circuit to mitigate distortion associated with one or more amplifier components are disclosed. A degeneration circuit of embodiments adds an impedance to cancel the second-order distortion of an amplifier transistor of a single-ended amplifier circuit. A bias circuit may be provided to minimize bias offset between an amplifier transistor and a corresponding degeneration transistor.

Abstract: A method and apparatus are provided for serial advanced technology attachment (SATA) hot unplug. In one embodiment, a method includes detecting a connection of a SATA storage device to a SATA host interface by monitoring physical (PHY) layer signals derived from SATA communication terminals, by a controller of the host interface. The detection being based on phase locked loop (PLL) response of the PHY layer signals. The method further includes detecting disconnection of the SATA device based on the PLL response and outputting a notification, by the controller, when the PLL response indicates that the SATA device has been disconnected.

Abstract: A gain circuit comprises a main amplification unit and a first refresh unit. The main amplification unit comprises an amplifier, a first capacitor connected between a first input terminal of the gain circuit and a first input terminal of the amplifier, and a second capacitor connected between the first input terminal of the amplifier and a first output terminal of the amplifier. The first refresh unit comprises a first capacitor connected with a first terminal of the first capacitor to a common node of the first refresh unit , and a second capacitor connected with a first terminal of the second capacitor to the common node of the first refresh unit. The common node of the first refresh circuit is arranged to be supplied with a reference voltage (Vref, Vcm, ref) during a first phase of a refresh interval and connected to the first input terminal of the amplifier during a second phase of the refresh interval.

Abstract: The likelihood of a particular type of object, such as a human face, being present within a digital image, and its location in that image, are determined by comparing the image data within defined windows across the image in sequence with two or more sets of data representing features of the particular type of object. The evaluation of each set of features after the first is preferably performed only on data of those windows that pass the evaluation with respect to the first set of features, thereby quickly narrowing potential target windows that contain at least some portion of the object. Correlation scores are preferably calculated by the use of non-linear interpolation techniques in order to obtain a more refined score. Evaluation of the individual windows also preferably includes maintaining separate feature set data for various positions of the object around one axis and rotating the feature set data with respect to the image data for the individual windows about another axis.

Abstract: A system for tuning a radio-frequency signal includes a first input path, a second input path, a common reference generator, a selector, a mixer, and a filter. The first input path and the second input path propagate a first single-ended input signal and a second single-ended input signal, respectively, to the selector. The selector converts the first single-ended input signal and the second single-ended input signal into a first differential input signal and a second differential input signal, respectively, using a reference signal generated by the common reference generator. The selector selectively couples one of the first and the second input path to an input of the mixer. The mixer downconverts a selected on of the differential input signals received from the selector. The filter attenuates a portion of the downconverted input signal outside a passband associated with the filter.

Abstract: A latched comparator circuit (1) comprises an input amplification unit (10), a buffer unit (20), and a control unit (30). The input amplification unit (10) comprises a first and a second input terminal (40a, 40b) for receiving a first and a second input voltage, respectively, of the latched comparator circuit (1). The input amplification unit (10) further comprises a first and a second output terminal (50a, 50b) for outputting a first and a second output voltage, respectively, of the input amplification unit (10). In addition, the input amplification unit (10) comprises a reset terminal (60) arranged to receive a reset signal for resetting the input amplification unit. The buffer unit (20) is operatively connected to the first and the second output terminal (50a, 50b) of the input amplification unit (10). Furthermore, the buffer unit (20) comprises a first and a second output terminal (70a, 70b) for outputting a first and a second output voltage, respectively, of the buffer unit (20).

Abstract: A latched comparator circuit. The latched comparator circuit comprises a first and a second output terminal (20a, 20b) for outputting a first and a second output voltage, respectively, of the latched comparator circuit (1). Furthermore, the latched comparator circuit comprises a cross-coupled pair of transistors (30a, 30b) operatively connected between the first and the second output terminal (20a, 20b) for providing a positive feedback in the latched comparator circuit (1). In addition, the latched comparator circuit comprises a reset terminal (40) for receiving a reset signal and reset circuitry arranged to balance the first and the second output voltage during a first phase of the reset signal and allow a voltage difference to develop between the first and the second output voltage during a second phase of the reset signal.

Abstract: A method of performing color space conversion includes maintaining a data structure that has a plurality of dimensions and that contains a plurality of locations storing information in each of the dimensions. Each of the dimensions corresponds to a different one of a plurality of input color signal components. The number of locations which the data structure contains in a first one of the dimensions is different from the number of locations which the data structure contains in a second one of the dimensions. The method further includes inputting first data defined according to a first color space, and generating second data defined according to a second color space, by applying information contained in the data structure to the first data.

Abstract: A method and image detection device are provided for removal of undesired objects from image data. In one embodiment, a method includes detecting image data for a first frame, detecting image data for a second frame, and detecting motion of an undesired object based, at least in part, on image data for the first and second frames. Image data of the first frame may be replaced with image data of the second frame to generate corrected image data, wherein the undesired object is removed from the corrected image data. The corrected image data may be stored.

Abstract: A system-on-a-chip (SoC) to process digital audio-video content includes one or more input/output (I/O) interfaces to transmit the digital audio-video content to corresponding I/O devices coupled to the SoC and to receive the digital audio-video content from the corresponding I/O devices. The SoC also includes a cryptographic engine to encrypt the digital audio-video content being transmitted via the I/O interfaces to the corresponding I/O devices and to decrypt the digital audio-video content received via the I/O interfaces from the corresponding I/O devices.

Abstract: A method and device are provided for method for stabilization of image data by an imaging device. In one embodiment, a method includes detecting image data for a first frame and a second frame, performing motion estimation to determine one or more motion vectors associated with global frame motion for image data of the first frame, performing an outlier rejection function to select at least one of the one or more motion vectors, and determining a global transformation for image data of the first frame based, at least in part, on motion vectors selected by the outlier rejection function. The method may further include determining a stabilization transformation for image data of the first frame by refining the global transformation to correct for unintentional motion and applying the stabilization transformation to image data of the first frame to stabilize the image data of the first frame.

Abstract: An apparatus, method, system and medium are described that support functionality to receive document(s) to be printed at a printing device, and enable editing the document(s) prior to printing. Modifications to the document(s) may be generated based on the user edits, and a print preview of the modified documents may be displayed and may enable further edits. In some embodiments, the print preview may be provided to the user on a display that is part of the printing device. In some embodiments, the print preview may be provided to the user through a UI presented on a client device. Display of the modified document(s) may be a rasterized image of the modified document(s), generated based on capabilities of a selected printing device. In some embodiments, modifications may be made to an intermediate version of the document(s), and that intermediate version may be cached.

Abstract: Amplitude of an audio input may be dynamically controlled within a predefined range of an analog-to-digital converter (ADC) threshold voltage. In one embodiment, an analog audio signal having a first voltage amplitude may be received by an amplifier. The analog audio signal may be amplified based on a gain control signal and converted to digital audio data by the ADC. The difference of the first voltage amplitude and the threshold voltage of the ADC may be determined and a gain control signal can be adjusted for the amplifier based, at least in part, on the difference in the first voltage amplitude and the threshold voltage of the ADC. The received analog audio signal characterized by a second voltage amplitude can be output.

Abstract: System and method for analyzing operation of a device under test (DUT). In one embodiment, a reference component associated with a reference device may be received. The reference device may be in communication with the DUT and a component associated with the DUT can be exchanged with the reference component. A test may be performed on the DUT, wherein a result of the test may correspond to a source of a fault associated with the DUT. An indication of the source of the fault may be provided based on the test result.

Abstract: An apparatus, method, system and medium are described that support functionality to receive document(s) to be printed at a printing device, and enable editing the document(s) prior to printing. Modifications to the document(s) may be generated based on the user edits, and a print preview of the modified documents may be displayed and may enable further edits. In some embodiments, the print preview may be provided to the user on a display that is part of the printing device. In some embodiments, the print preview may be provided to the user through a UI presented on a client device. Display of the modified document(s) may be a rasterized image of the modified document(s), generated based on capabilities of a selected printing device. In some embodiments, modifications may be made to an intermediate version of the document(s), and that intermediate version may be cached.