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Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 358: Facsimile And Static Presentation Processing

Communication or reproduction of a static image or sequence of static images in which the local light, or density variations composing the image do not vary with time by a method or apparatus involving at least one of the following steps: (1) scanning a static image to capture an image-containing area by resolving it into an area; (2) communication of an image-representative signal or image-representative data over any supporting communication network; or (3) reproduction of an image-containing area in response to an image-representative signal or image-representative image data by reproducing a corresponding image area which at least one of the two dimensions is elemental, simultaneously or in a sequence. In this class, a facsimile system or method is a system or method for the communication or reproduction of an arbitrarily composed image in which the local light, or density variations composing the image do not vary with time, such as documents maps, charts, photographs, etc., but not motion picture film or video.

Subclass 1.13: Emulation or plural modes
Subclass 1.15: Communication
Subclass 1.18: Detail of image placement or content
Subclass 1.9: Attribute control
Subclass 3.03: Error diffusion in gray level or halftone generation
Subclass 3.06: Halftoning (e.g., a pattern of print elements used to represent a gray level)
Subclass 3.08: Descreening (e.g., inverse halftone conversion)
Subclass 3.09: Print element property varied to effect halftone pattern
Subclass 3.2: Screen property or geometry (e.g., shape, period, symmetry, aspect ratio)
Subclass 3.26: Distortion control in image reproduction (e.g., removing, reducing or preventing image artifacts)
Subclass 450: Plural images combined into a single image
Subclass 452: Image editing
Subclass 453: Image portion selection
Subclass 462: Text and image detection and processing
Subclass 463: Noise elimination
Subclass 464: To distinguish intelligence from background
Subclass 518: Color correction
Subclass 525: Interpolation
Subclass 533: Moire reduction
Subclass 534: Halftone processing
Subclass 536: Halftone screening
Subclass 540: Composite image

Class 345: Computer Graphics Processing And Selective Visual Display Systems

Processes and apparatus for selective electrical control of two or more light-generating or light-controlling display elements* in accordance with a received or stored image data signal. The image data includes character, graphical information or display attribute data. The image data may include, for example, information data from a peripheral input device, from the reception of a television signal, from the recognition of image data, or from the generation or creation of image data by a computer.

Subclass 426: Lighting/shading
Subclass 600: Color bit data modification or conversion
Subclass 601: Using look up table
Subclass 602: Plural look up tables
Subclass 604: Color space transformation (e.g., RGB to YUV)
Subclass 606: Interpolation of attribute values across object surface
Subclass 611: Anti-aliasing or image smoothing

Class 382: Image Analysis

This is the generic class for apparatus and corresponding methods for the automated analysis of an image or recognition of a pattern. Included herein are systems that transform an image for the purpose of (a) enhancing its visual quality prior to recognition, (b) locating and registering the image relative to a sensor or stored prototype, or reducing the amount of image data by discarding irrelevant data, and (c) measuring significant characteristics of the image.

Subclass 154: 3-D or stereo imaging analysis
Subclass 164: Image segmentation using color
Subclass 166: Compression of color images
Subclass 167: Color correction
Subclass 171: For segmenting an image
Subclass 180: Region labeling (e.g., page description language)
Subclass 243: Shape, icon, or feature-based compression
Subclass 253: Vector quantization
Subclass 257: Dilation or erosion (e.g., opening or closing)
Subclass 258: Line thinning or thickening
Subclass 260: Image filter
Subclass 261: Adaptive filter
Subclass 263: Highpass filter (i.e., for sharpening or enhancing details)
Subclass 264: Lowpass filter (i.e., for blurring or smoothing)
Subclass 265: Recursive filter
Subclass 266: Edge or contour enhancement
Subclass 274: Intensity, brightness, contrast, or shading correction
Subclass 275: Artifact removal or suppression (e.g., distortion correction)
Subclass 283: Using a mask
Subclass 284: Combining image portions (e.g., portions of oversized documents)
Subclass 292: Where the object is a character, word, or text
Subclass 305: Image storage or retrieval
Subclass 308: Morphological operations (i.e., local neighborhood operations)

Class 375: Pulse Or Digital Communications

This is the generic class for pulse or digital communication systems using electrical or electromagnetic signals. Such communication includes transmitting an intelligence bearing signal from one point to another in the form of discrete variations in some parameter of the electrical or electromagnetic signal.

Subclass E7.088: Involving coding of different picture or data components (EPO)
Subclass E7.19: Involving reduction of coding artifacts, e.g., of blockiness (EPO)
Subclass E7.226: Involving transform coding, e.g., using discrete cosine transform (DCT) (EPO)