Patent application number | Description | Published |
20120028176 | IMAGING MEMBERS COMPRISING STRUCTURED ORGANIC FILMS - A photoreceptor comprising a composite structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film includes a secondary component and may be a multi-segment thick structured organic film. | 02-02-2012 |
20120028177 | IMAGING MEMBERS COMPRISING CAPPED STRUCTURED ORGANIC FILM COMPOSITIONS - A imaging member, such as a photoreceptor, comprising a capped structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film. | 02-02-2012 |
20120029236 | CAPPED STRUCTURE ORGANIC FILM COMPOSITIONS - A capped structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film. | 02-02-2012 |
20120040282 | IMAGING DEVICES COMPRISING STRUCTURED ORGANIC FILMS - An imaging member for a xerographic liquid immersion development machine having an outermost layer including a solvent resistant structured organic film (SOF) having a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be multi-segment thick. | 02-16-2012 |
20120040283 | IMAGING MEMBERS FOR INK-BASED DIGITAL PRINTING COMPRISING STRUCTURED ORGANIC FILMS - An imaging member for ink-based digital printing having an outermost layer including a structured organic film (SOF) having a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be multi-segment thick. | 02-16-2012 |
20120232308 | HIGH MOBILITY PERIODIC STRUCTURED ORGANIC FILMS - An high mobility structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film. | 09-13-2012 |
20130078560 | LOW-WEAR PHOTORECEPTOR SURFACE LAYER - A robust imaging member, such as long life photoreceptor, comprising a structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework. | 03-28-2013 |
20130078561 | ROBUST PHOTORECEPTOR SURFACE LAYER - A imaging member, such as a photoreceptor, comprising a structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may comprise at least one secondary component, such as an antioxidant. | 03-28-2013 |
20130183486 | PATTERNED PHOTORECEPTOR OVERCOAT LAYER AND METHODS FOR MAKING THE SAME - A imaging member, such as a photoreceptor, incorporating an outer layer having comprising a structured organic film nano- to micron-scale patterns formed on its surface to lower friction with the cleaning blade and improve print quality and performance. Methods for making the improved imaging member are also disclosed. | 07-18-2013 |
Patent application number | Description | Published |
20110090242 | SYSTEM AND METHOD FOR DEMOSAICING IMAGE DATA USING WEIGHTED GRADIENTS - Various techniques are provided herein for the demosaicing of images acquired and processed by an imaging system. The imaging system includes an image signal processor and image sensors utilizing color filter arrays (CFA) for acquiring red, green, and blue color data using one pixel array. In one embodiment, the CFA may include a Bayer pattern. During image signal processing, demosaicing may be applied to interpolate missing color samples from the raw image pattern. In one embodiment, interpolation for the green color channel may include employing edge-adaptive filters with weighted gradients of horizontal and vertical filtered values. The red and blue color channels may be interpolated using color difference samples with co-located interpolated values of the green color channel. In another embodiment, interpolation of the red and blue color channels may be performed using color ratios (e.g., versus color difference data). | 04-21-2011 |
20110090351 | TEMPORAL FILTERING TECHNIQUES FOR IMAGE SIGNAL PROCESSING - Various techniques for temporally filtering raw image data acquired by an image sensor are provided. In one embodiment, a temporal filter determines a spatial location of a current pixel and identifies at least one collocated reference pixel from a previous frame. A motion delta value is determined based at least partially upon the current pixel and its collocated reference pixel. Next, an index is determined based upon the motion delta value and a motion history value corresponding to the spatial location of the current pixel, but from the previous frame. Using the index, a first filtering coefficient may be selected from a motion table. After selecting the first filtering coefficient, an attenuation factor may be selected from a luma table based upon the value of the current pixel, and a second filtering coefficient may subsequently be determined based upon the selected attenuation factor and the first filtering coefficient. The temporally filtered output value corresponding to the current pixel may then be calculated based upon the second filtering coefficient, the current pixel, and the collocated reference pixel. | 04-21-2011 |
20110090380 | IMAGE SIGNAL PROCESSOR FRONT-END IMAGE DATA PROCESSING SYSTEM AND METHOD - Various techniques are provided herein for processing raw image data in front-end processing logic of an image signal processing system. In one embodiment, the front-end processing logic includes a statistics processing unit configured to process raw image data acquired by an image sensor to obtain one or more sets of statistics. The statistics processing unit may first correct defective pixels in the raw image data and then correct lens shading errors in the raw image data prior to extracting the statistics information. In certain embodiments, black level compensation may be applied between the defective pixel correction and lens shading correction steps, and inverse black level compensation may be applied between the lens shading correction step and the extraction of the statistics information. The acquired statistics information may be utilized by an image signal processing pipeline for converting the raw image data into a color (e.g., RGB) and/or luma (e.g., YCbCr) image. | 04-21-2011 |
20110090381 | SYSTEM AND METHOD FOR PROCESSING IMAGE DATA USING AN IMAGE PROCESSING PIPELINE OF AN IMAGE SIGNAL PROCESSOR - Various techniques are provided herein for processing raw image data acquired using a digital image sensor in an image processing pipeline of an image signal processing system. In one embodiment, the image processing pipeline may first process the raw image data (e.g., Bayer image data) for the detection and correction of defective pixels. Next, the image processing pipeline may process the raw image data to reduce noise. Thereafter, the image processing pipeline may correct lens shading distortion in the raw image data and, subsequently, apply a demosaicing algorithm to convert the raw image data into full color image data (e.g., RGB image data). The color image data may be further processed by the image processing pipeline to correct color and gamma properties prior to being converted into a luma and chroma color space (e.g., YCbCr color space). | 04-21-2011 |
20120026368 | BINNING COMPENSATION FILTERING TECHNIQUES FOR IMAGE SIGNAL PROCESSING - Various techniques for applying binning compensation filtering to binned raw image data acquired by an image sensor are provided. In one embodiment, a binning compensation filter (BCF) includes separate digital differential analyzers (DDA) for vertical and horizontal scaling. A current position of an output pixel is determined by incrementing the DDA based upon a step size. Using the known output pixel position, a center source input pixel and an index corresponding to the between-pixel fractional position of the output pixel position relative to the input pixels may be selected for filtering. Using the selected center input pixel, one or more same-colored neighboring source pixels may be selected. The number of selected source pixels may depend on the number of taps used by the scaling logic, and may depend on whether horizontal or vertical scaling is being applied. Using the selected index, a set of filter coefficients may be selected from a filter coefficient lookup table, applied to the selected source pixels, and the results may be summed to determine a value for an output pixel having a position corresponding to the current position of the DDA. This process may be repeated for each input pixel and may be performed in both vertical and horizontal directions, thus ultimately producing a re-sampled set of image data that is spatially evenly distributed. | 02-02-2012 |
20120044372 | DUAL IMAGE SENSOR IMAGE PROCESSING SYSTEM AND METHOD - Various techniques are provided for processing image data acquired using a digital image sensor. In accordance with aspects of the present disclosure, one such technique may relate to the processing of image data in a system that supports multiple image sensors. In one embodiment, the image processing system may include control circuitry configured to determine whether a device is operating in a single sensor mode (one active sensor) or a dual sensor mode (two active sensors). When operating in the single sensor mode, data may be provided directly to a front-end pixel processing unit from the sensor interface of the active sensor. When operating in a dual sensor mode, the image frames from the first and second sensors are provided to the front-end pixel processing unit in an interleaved manner. For instance, in one embodiment, the image frames from the first and second sensors are written to a memory, and then read out to the front-end pixel processing unit in an interleaved manner. | 02-23-2012 |
20120081385 | SYSTEM AND METHOD FOR PROCESSING IMAGE DATA USING AN IMAGE SIGNAL PROCESSOR HAVING BACK-END PROCESSING LOGIC - Disclosed embodiments provide for a an image signal processing system that includes back-end pixel processing unit that receives pixel data after being processed by at least one of a front-end pixel processing unit and a pixel processing pipeline. In certain embodiments, the back-end processing unit receives luma/chroma image data and may be configured to apply face detection operations, local tone mapping, bright, contrast, color adjustments, as well as scaling. Further, the back-end processing unit may also include a back-end statistics unit that may collect frequency statistics. The frequency statistics may be provided to an encoder and may be used to determine quantization parameters that are to be applied to an image frame. | 04-05-2012 |
20120081553 | SPATIAL FILTERING FOR IMAGE SIGNAL PROCESSING - Systems and methods are disclosed for applying spatial filtering to raw image data. In one embodiment, a spatial filter may identify an n×n block of pixels from the current image frame, the n×n block including a plurality of neighboring pixels being centered about a current input pixel and being of the same color component as the current input pixel. The spatial filter may include a plurality of filter taps, with one filter tap corresponding to each of the pixels within the n×n block. A set of filtering coefficients for each filter tap, which may be based on a Gaussian function, may be determined. A pixel difference value between the current input pixel and each of the plurality of neighboring pixels in the n×n block are determined, and the pixel differences may be used to determine an attenuation factor for each filter tap. In one embodiment, the attenuation factor is based upon the pixel difference value between the raw input pixel and the neighboring pixel at the filter tap and brightness of the current input pixel. An attenuated set of filtering coefficients may be obtained thereafter by applying the attenuation factors to their respective filtering taps. Subsequently, the attenuated filtering coefficients may be applied to obtain a set of filtered pixel values. By normalizing the sum of the filtered pixel values using the sum of the attenuated filtering coefficients, a spatially filtered output value corresponding to the current input pixel (e.g., located at the center of the n×n block) may be determined. | 04-05-2012 |
20120081566 | FLASH SYNCHRONIZATION USING IMAGE SENSOR INTERFACE TIMING SIGNAL - Certain aspects of this disclosure relate to an image signal processing system that includes a flash controller that is configured to activate a flash device prior to the start of a target image frame by using a sensor timing signal. In one embodiment, the flash controller receives a delayed sensor timing signal and determines a flash activation start time by using the delayed sensor timing signal to identify a time corresponding to the end of the previous frame, increasing that time by a vertical blanking time, and then subtracting a first offset to compensate for delay between the sensor timing signal and the delayed sensor timing signal. Then, the flash controller subtracts a second offset to determine the flash activation time, thus ensuring that the flash is activated prior to receiving the first pixel of the target frame. | 04-05-2012 |
20120081567 | TECHNIQUES FOR SYNCHRONIZING AUDIO AND VIDEO DATA IN AN IMAGE SIGNAL PROCESSING SYSTEM - The present disclosure provides techniques for performing audio-video synchronization using an image signal processing system. In one embodiment, a time code register provides a current time stamp when sampled. The value of the time code register may be incremented at regular intervals based on a clock of the image signal processing system. At the start of a current frame acquired by an image sensor, the time code register is sampled, and a timestamp is stored into a timestamp register associated with the image sensor. The timestamp is then read from the time stamp register and written to a set of metadata associated with the current frame. The timestamp stored in the frame metadata may then be used to synchronize the current frame with a corresponding set of audio data. | 04-05-2012 |
20120081577 | IMAGE SENSOR DATA FORMATS AND MEMORY ADDRESSING TECHNIQUES FOR IMAGE SIGNAL PROCESSING - Certain embodiments of the present disclosure provide a flexible memory input/output controller that is configured to the storing and reading of multiple types of pixels and pixel memory formats. For instance, the memory I/O controller may support the storing and reading of raw image pixels at various bits of precision, such as 8-bit, 10-bit, 12-bit, 14-bit, and 16-bit. Pixel formats that are unaligned with memory bytes (e.g., not being a multiple of 8-bits) may be stored in a packed manner. The memory I/O controller may also support various formats of RGB pixel sets and YCC pixel sets. | 04-05-2012 |
20120081578 | IMAGE SIGNAL PROCESSOR LINE BUFFER CONFIGURATION FOR PROCESSING RAW IMAGE DATA - The present disclosure provides techniques relates to the implementation of a raw pixel processing unit using a set of line buffers. In one embodiment, the set of line buffers may include a first subset and second subset. Various logical units of the raw pixel processing unit may be implemented using the first and second subsets of line buffers in a shared manner. For instance, in one embodiment, defective pixel correction and detection logic may be implemented using the first subset of line buffers. The second subset of line buffers may be used to implement lens shading correction logic, gain, offset, and clamping logic, and demosaicing logic. Further, noise reduction may also be implemented using at least a portion of each of the first and second subsets of line buffers. | 04-05-2012 |
20120081580 | OVERFLOW CONTROL TECHNIQUES FOR IMAGE SIGNAL PROCESSING - Certain embodiments disclosed herein relate to an image signal processing system includes overflow control logic that detects an overflow condition when a destination unit when a sensor input queue and/or front-end processing unit receives back pressure from a downstream destination unit. In one embodiment, pixels of a current frame are dropped when an overflow condition occurs. The number of dropped pixels may be tracked using a counter. Upon recovery of the overflow condition, the remaining pixels of the frame are received and each dropped pixel may be replaced using a replacement pixel value. | 04-05-2012 |
Patent application number | Description | Published |
20090245743 | Compact, high-density adapter module, housing assembly and frame assembly for optical fiber telecommunications - Adapter modules, housing assemblies that house the adapter modules, and frame assemblies that contain the housing assemblies are disclosed that are all relatively compact and support a relatively high density of components. The modules, assemblies and frames have configurations that take advantage of bend-insensitive cable fibers and jumper fibers. The adapter module is a cassette-like case that allows for a length of cable fiber to be wound tightly therein in a substantially circular loop configuration when closed. The housing assembly houses a plurality of adapter modules and is configured so that the cable and jumper fibers have relatively tight bends within the housing interior. The frame assembly is configured to support a plurality of stacked housing assemblies and to route the jumper fibers through routing conduits and/or routing troughs so that the jumper fibers are enclosed within the frame assembly rather than dangling outside of the frame. The cable fibers enter the back of the housing assemblies via a fiber optic cable arranged at the back of the frame assembly. | 10-01-2009 |
20110069931 | Strain Relief Device and Method for Fiber Optic Cables - A fiber optic strain relief device is provided. The device has a base that attaches to a piece of equipment and/or hardware. A length of strap positions in the base and forms a loop. The loop is adapted to at least partially encircle a portion of a cable positioned at the base. A strap tightener incrementally shortens the length of the strap, reducing the loop and tightening the strap around the cable. The strap tightener may be a ratchet assembly comprising an actuator, a ratchet cap, a pin, a ratchet lock and a release. The length of strap inserts into a slot in the pin. The ratchet assembly operates to tighten the length of strap encircling the portion of the cable by incrementally rotating the pin. The release allows the strap to be loosened around the fiber optic cable. | 03-24-2011 |
20110103760 | Mounting Clips for Mounting Fiber Optic Equipment and Apparatuses and Related Methods - Mounting clips and fiber optic equipment and apparatuses that include one or more mounting clips for mounting fiber optic equipment and related methods are disclosed. The mounting clips allow fiber optic equipment to be easily installed or mounted for storage, such as in, for example, fiber optic equipment racks or cabinets. In one embodiment, a fiber optic apparatus is provided comprising a housing and at least one optical component supported in the housing. At least one mounting clip is attached to at least one side of the housing of the fiber optic equipment. The mounting clip is configured to receive at least one mounting bracket configured to be installed on a fiber optic equipment rack. In this manner, when the mounting clip is received or attached to the mounting bracket, the housing of the fiber optic equipment is secured to the fiber optic equipment rack. | 05-05-2011 |
20110235985 | Movable Adapter Panel - A support shelf for fiber optic hardware is disclosed. Generally, the support shelf includes a plurality of component mounting features that permits releasably mounting of fiber optic hardware at a plurality of locations on the support shelf. The component mounting features are generally openings in a base of the support shelf and may be slots in the base as well. With this improved configuration, fiber optic hardware such as adapter panels can be mounted at a variety of locations on the support shelf ranging from flush with a front edge of the support shelf to a recessed mounting, which is a distance from the front edge. | 09-29-2011 |
20110268404 | FIBER OPTIC HOUSINGS CONFIGURED TO ACCOMMODATE FIBER OPTIC MODULES/CASSETTES AND FIBER OPTIC PANELS, AND RELATED COMPONENTS AND METHODS. - Fiber optic housings configured to accommodate fiber optic modules/cassettes and fiber optic panels are disclosed. In one embodiment, a fiber optic apparatus is provided and comprised of a fiber optic housing and one or more removable panel clips. Each of the one or more removable panel clips includes at least one receptacle configured to receive an insert of a fiber optic panel to support the fiber optic panel in the fiber optic housing. In another embodiment, a fiber optic shelf configured to be supported in a fiber optic housing is provided. The fiber optic shelf comprises a mounting surface and one or more removable panel clips attached to the mounting surface that each includes at least one receptacle configured to receive an insert of a fiber optic panel to support the fiber optic panel in the mounting surface. Related components and methods are also disclosed. | 11-03-2011 |
20110268405 | STACKABLE SHELVES FOR A FIBER OPTIC HOUSING, AND RELATED COMPONENTS AND METHODS - Stackable shelves for a fiber optic housing and related components and methods are disclosed. In one embodiment, a stackable shelf for a fiber optic housing is provided. The stackable shelf comprises a mounting surface and one or more stacker assemblies stacked above the mounting surface, each configured to support fiber optic equipment in one or more height spaces. The one or more stacker assemblies are further configured to support one or more additional removable stacker assemblies each configured to support fiber optic equipment at one or more additional height spaces. In another embodiment, a removable stacker assembly configured to support fiber optic equipment in a stackable shelf is provided. Related methods are also disclosed. | 11-03-2011 |
20110268413 | Rotatable Routing Guide and Assembly - A rotatable routing guide assembly for fiber optic cables routed in a fiber optic equipment shelf is disclosed. The assembly comprises a guide portion, an attachment feature and a keyed receiver. The guide portion has a bottom, a top, a deformable first wall, a deformable second wall and a third wall forming a plurality of segments, and is configured to receive fiber optic cables of different sizes by different ones of the plurality of segments. The attachment feature removably attaches the guide portion to the shelf. The attachment feature has a first tab forming a first notch with the guide portion, and a second tab forming a second notch with the guide portion. The keyed receiver is located in the shelf and has a lip extending partially around an interior edge. The lip is received in at least one of the first notch and the second notch and friction fit between at least one of the first tab and the second tab and the guide portion. | 11-03-2011 |
Patent application number | Description | Published |
20100258055 | Bird feeder - A squirrel resistant bird feeder having a seed container, a seed tray mounted below the seed container, a shroud extending about the seed member and seed tray, the shroud having openings in a lower portion thereof, with a spring member mounted internally of the seed container and being enclosed by a central tube, the spring member having a first end thereof abutting a portion of the seed tray and a second end acting on the cover and shroud. Any excessive weight placed on the shroud or cover will cause the shroud to move downwardly covering the seed tray. | 10-14-2010 |
20110083610 | Adjustable squirrel proof bird feeder - A bird feeder comprising a seed container, a seed tray situated below the seed container, a shroud extending about the seed tray and having an opening therein to permit access thereto, a perch proximate the opening, a center tube mounted internally of the feed container and a non rotatable nut mounted within the center tube, a post being screwthreadedly engaged with the non rotatable nut to adjust spring tension, a cover about an upper end of the feed container, the arrangement being such that pressure from an animal such as a squirrel on either the cover or perch will cause the shroud to block the opening and deny access to the seed. | 04-14-2011 |
20120055410 | Squirrel resistant hopper type bird feeder - A hopper type squirrel resistant bird feeder which has a base having first and second ends and first and second sides, first and second end walls located proximate the first and second ends of the base and first and second side walls set inwardly of the first and second sides of the base to define a feed access area with the first and second side walls being spaced upwardly from the base, a feed cavity being defined by the base, end walls and side walls, and a seed guard extending over the feed access area, the seed guard having at least a portion spaced from the base and having apertures formed therein to permit access by birds to the feed access area. The bird feeder is of the knock down variety and can easily be disassembled for cleaning purposes. | 03-08-2012 |
20120073505 | Suet feeder - A suet feeder which comprises a housing having a spring and a suet holder connected to the housing, the suet holder being sized to retain a prepackaged package of suet, a shroud extending about the suet holder and at least a portion of the housing, a spring biasing the shroud upwardly with respect to the housing and suet holder, the shroud having at least one suet access opening to permit access to the suet holder with the shroud being moveable between an open position permitting access to the suet holder and a closed position wherein access to the suet holder is denied, and a cover secured to the shroud. The suet feeder is designed to deter access to the suet by marauders such as squirrels. | 03-29-2012 |