| RICOH CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20120131088 | MULTIMEDIA INFORMATION RETRIEVAL SYSTEM WITH PROGRESSIVE FEATURE SELECTION AND SUBMISSION - A system and method for information retrieval comprises a computing device with a client and a progressive feature server coupled by a network. The client includes a feature extraction module, a progressive sending module, a sampling module and a feedback receiver. The progressive sending module divides the features into groups and sends them to the server. The progressive sending module is also responsive to commands from the feedback receiver to terminate the transmission of additional features if a match is found. The progressive feature server is coupled for communication with the client and includes a progressive receiving module, a feedback generator, an image recognizer and a result delivery module. The image recognizer progressively processes the groups of extracted features received from the client and provides results and hints for improved recognition. The present invention also includes methods for processing captured information progressively, sending extracted features in groups, and progressively performing image recognition for improved recognition speed. | 05-24-2012 |
| 20110310110 | SYNTHETIC IMAGE AND VIDEO GENERATION FROM GROUND TRUTH DATA - A system and a method are disclosed for generating video. Object information is received. A path of motion of the object relative to a reference point is generated. A series of images and ground for a reference frame are generated from the ground truth and the generated path. A system and a method are disclosed for generating an image. Object information is received. Image data and ground truth may be generated using position, the image description, the camera characteristics, and image distortion parameters. A positional relationship between the document and a reference point is determined. An image of the document and ground truth are generated from the object information and the positional relationship and in response to user specified environment of the document. | 12-22-2011 |
| 20110081892 | SYSTEM AND METHODS FOR USE OF VOICE MAIL AND EMAIL IN A MIXED MEDIA ENVIRONMENT - A mixed media reality (MMR) system includes an MMR user, a MMR computer, a user printer that produces a printed document, a networked media server, an office portal, a service provider server, an electronic display that is electrically connected to a set-top box, a document scanner, a network, a capture device, a cellular infrastructure, wireless fidelity (Wi-Fi) technology, Bluetooth® technology, infrared (IR) technology, wired technology, and a geo location mechanism. The MMR system provides mechanisms for forming a mixed media document that includes media of at least two types, such as printed paper as a first medium and a digital photograph, digital movie, digital audio file, or web link as a second medium. Furthermore, the MMR system facilitates business methods that take advantage of the combination of a portable electronic device, voice mail or email, and a paper document. | 04-07-2011 |
| 20100315060 | REFERENCE VOLTAGE GENERATION CIRCUIT - A basic structure of a reference voltage generation circuit is formed by a buffer amplifier ( | 12-16-2010 |
| 20100188552 | Imaging System with Variable Opto-Mechanical System, Aberrated Optics and Compensating Filter Bank - A weighted sum of a set of component filters is used to effectively apply different “composite” FIR filters to compensate for aberrations resulting from different opto-mechanical settings. The FIR filters are “composite” in the sense that they are a weighted sum of the set of component filters. In one approach, the aberrations vary as a function of the opto-mechanical setting, and the opto-mechanical setting is used to determine the weights of the different component filters. | 07-29-2010 |
| 20100182476 | Imaging System Using Enhanced Spherical Aberration and Specifically Sized FIR Filters - A class of imaging systems in which the imaging optics, the sensor array and the image processing are related by three parameters: W | 07-22-2010 |
| 20100166309 | System And Methods For Creation And Use Of A Mixed Media Environment - A Mixed Media Reality (MMR) system and associated techniques are disclosed. The MMR system provides mechanisms for forming a mixed media document that includes media of at least two types (e.g., printed paper as a first medium and digital content and/or web link as a second medium). In one particular embodiment, the MMR system includes an MMR user, a MMR computer, a user printer that produces a printed document, a networked media server, an office portal, a service provider server, an electronic display that is electrically connected to a set-top box, a document scanner, a network, a capture device, a cellular infrastructure, wireless fidelity (Wi-Fi) technology, Bluetooth® technology, infrared (IR) technology, wired technology, and a geo location mechanism. The MMR system of the present invention provides mechanisms for forming a mixed media document that includes media of at least two types, such as printed paper as a first medium and a digital photograph, digital movie, digital audio file, or web link as a second medium. Furthermore, the MMR system of the present invention facilitates business methods that take advantage of the combination of a portable electronic device, such as a cellular camera phone, and a paper document. | 07-01-2010 |
| 20100117724 | FILTER CIRCUIT - A plurality of low-pass filters ( | 05-13-2010 |
| 20100077478 | Method and Apparatus for Publishing Documents Over a Network - An apparatus and method for publishing an electronic document on a network is described. In one embodiment, an apparatus for publishing an electronic document on a wide area network comprising at least one server and a client, a client having memory for storing an electronic document, and means for sending the electronic document to the server, wherein a URL is associated with the electronic document, a security key associated with the URL, and means for sending a URL to a user. | 03-25-2010 |
| 20100001797 | DIFFERENTIAL AMPLIFIER - A differential amplifier circuit at the input stage is configured with a twin differential type having a first differential amplifier circuit ( | 01-07-2010 |
| 20090327383 | SINUSOIDAL WAVE GENERATION CIRCUIT - There are provided a coefficient ROM | 12-31-2009 |
| 20090313245 | Mixed Media Reality Brokerage Network With Layout-Independent Recognition - A Mixed Media Reality (MMR) system associated techniques are disclosed. The MMR system provides mechanisms for forming a mixed media document that includes media of at least two types (e.g., printed paper as a first medium and digital content as a second medium. The MMR system of the present invention provides mechanisms for forming a mixed media document that includes media of at least two types, such as printed paper as a first medium and a digital photograph, digital movie, digital audio file, or web link as a second medium. The present invention also includes a number of novel methods including: a method for layout independent MMR recognition, a strip fragment candidate generation process, and a page candidate accumulation process. | 12-17-2009 |
| 20090298454 | RECEIVER - By A/D converting a signal output from a mixer ( | 12-03-2009 |
| 20090285444 | Web-Based Content Detection in Images, Extraction and Recognition - A web-based image detection system includes: an image capture device, a web browser, a plug-in, and a recognition server. A captured image is processed by the plug-in to assess whether a pre-determined content type is contained with in the image. Once an initial analysis at the browser plug-in detects a pre-determined content type in an image, the image is transmitted to a recognition server for content recognition of the image by content type. The system thus enables users to link documents or other image types to electronic data using only a capture device and a web browser. | 11-19-2009 |
| 20090261905 | OPEN GAIN ADJUSTMENT CIRCUIT FOR OPERATIONAL AMPLIFIER - An operational amplifier comprises: a differential amplifier circuit ( | 10-22-2009 |
| 20090237036 | FREQUENCY SYNTHESIZER AND LOOP FILTER USED THEREIN | 09-24-2009 |
| 20090219264 | VIDEO PLAYBACK ON ELECTRONIC PAPER DISPLAYS - A system for displaying video on electronic paper displays to reduce video playback artifacts comprises an electronic paper display, a video display driver, a video transcoder, a display controller, a memory buffer and a waveforms module. The video display driver receives a re-formatted video stream, which has been processed by the video transcoder, from the memory buffer. The video display driver directs the video transcoder to process the video stream and generate pixel data. The video display driver loads waveforms into the frame buffer and updates display commands repeatedly to activate the display controller until the end of the video playback. The video display driver directs copying video frames sequentially one by one from the memory buffer to the frame buffer in real time during the video playback. The video transcoder receives a video stream for presentation on the electronic paper display and processes the video stream generating pixel data that is provided to the display controller. The present invention also includes a method for displaying video on an electronic paper display. | 09-03-2009 |
| 20090207952 | AUTOMATIC GAIN CONTROL CIRCUIT - There are provided an A/D converting circuit ( | 08-20-2009 |
| 20090128259 | AUTOMATIC REGULATOR OF FILTER - A second operational amplifier ( | 05-21-2009 |
| 20090115519 | POWER AMPLIFIER AND ITS IDLING CURRENT SETTING CIRCUIT - An idling current setting circuit ( | 05-07-2009 |
| 20090103668 | AUTOMATIC GAIN CONTROL CIRCUIT - A first MOS transistor (M | 04-23-2009 |
| 20090091797 | Catadioptric Imaging System - A catadioptric imaging system combines a rectifying mirror, a lens system and subsequent image processing. This approach can produce a small form factor desktop document imaging system capable of producing high-quality, high-resolution images of paper documents. | 04-09-2009 |
| 20090085687 | MODULATING CIRCUIT - There are included a first quadrature modulation part ( | 04-02-2009 |
| 20090040330 | End-to-End Design of Electro-Optic Imaging Systems - A unified design strategy takes into account different subsystems within an overall electro-optic imaging system. In one implementation, the design methodology predicts end-to-end imaging performance using a spatial model for the source and models for the optical subsystem, the detector subsystem and the digital image processing subsystem. The optical subsystem and digital image processing subsystems are jointly designed taking into account the entire system. The intermediate image produced by the optical subsystem is not required to be high quality since, for example, the quality may be corrected by the digital image processing subsystem. | 02-12-2009 |
| 20090033434 | OSCILLATION CIRCUIT - A first switch (SW | 02-05-2009 |
| 20090016615 | Invisible Junction Feature Recognition For Document Security or Annotation - The present invention uses invisible junctions which are a set of local features unique to every page of the electronic document to match the captured image to a part of an electronic document. The present invention includes: an image capture device, a feature extraction and recognition system and database. When an electronic document is printed, the feature extraction and recognition system captures an image of the document page. The features in the captured image are then extracted, indexed and stored in the database. Given a query image, the features in the query image are extracted and compared against those stored in the database to identify the query image. The feature extraction and recognition system of the present invention is integrated into a multifunction peripheral. This allows the feature extraction and recognition system to be used in conjunction with other modules to provide security and annotation applications. | 01-15-2009 |
| 20080316609 | Compact Super Wide-Angle Imaging System - A super wide-angle imaging system has a short total track length. The lens system is a retrofocus type lens system that uses only a few lenses with no cemented lens elements. Acceptable performance is achieved by taking advantage of subsequent digital image processing. The compact lens system is designed to create optical images that can be restored by subsequent digital processing that compensates for otherwise unacceptable aberrations introduced by the lens system. | 12-25-2008 |
| 20080309674 | Full Framebuffer for Electronic Paper Displays - A system and a method are disclosed for updating a bi-stable display includes a framebuffer for storing waveforms for each pixel individually. The system includes determining a current state of a pixel of the bi-stable display; determining a desired state of the pixel of the bi-stable display; and updating the pixel by applying a determined control signal to the pixel to drive the pixel from the current state to the final state. Updating each pixel occurs independently of the other pixels of the bi-stable display. | 12-18-2008 |
| 20080309657 | Independent Pixel Waveforms for Updating electronic Paper Displays - A system and a method are disclosed for updating an image on a bi-stable display includes a module for determining a final optical state, estimating a current optical state and determining a sequence of control signals to produce a visual transition effect while driving the display from the current optical state toward a final optical state. The system also includes a control module for generating a control signal for driving the bi-stable display from the current optical state to the final optical state. | 12-18-2008 |
| 20080309636 | Pen Tracking and Low Latency Display Updates on Electronic Paper Displays - A system and a method are disclosed for fast pen tracking a low latency display updates on an electronic paper display. Pen input information is received on an electronic paper display that updates at a predetermined display update rate. A line drawing module of the electronic paper display driver determines at least one pixel to activate based on the received pen input information. The at least one pixel is updated independent of the display update rate of the electronic paper display. Active pixel state information is maintained separately for each pixel in real time until the pixel update is complete and the pixel is deactivated. In some embodiments, a future pixel to activate is determined based on the received pen input information. The future pixel is deactivated if pen input information is not received on the activated pixel for a predetermined amount of time. | 12-18-2008 |
| 20080309612 | Spatially Masked Update for Electronic Paper Displays - Electronic Paper Displays can suffer from “ghosting” or previous images remaining partially visible after the display has updated to show a new image. A pseudo-random noise intermediate image is used to make the ghosting less visible to human observers. Further, other intermediate images can be used to convey visible information or to convey secret information, e.g. a watermark. A control signal for driving the bi-stable display from the current optical state to an intermediate state, then to a final optical state is also determined. In some embodiments, the intermediate state for each pixel is determined in a pseudo-random manner. The pseudo-random noise values are applied to the bi-stable display to remove noise and other artifacts from the end resulting images. The determined control signal is applied to the bi-stable display to drive the bi-stable to the intermediate state, then to the final optical state. | 12-18-2008 |
| 20080284896 | Joint Optics and Image Processing Adjustment of Electro-Optic Imaging Systems - Adjustments to the optical subsystem of an electro-optic imaging system take into account different subsystems within the overall electro-optic imaging system. In one implementation, end-to-end imaging performance is predicted based on determining propagation of a source through the optical subsystem, the detector subsystem and the digital image processing subsystem. The optical subsystem is then adjusted after taking into account these other subsystems. For example, the compensators for the optical subsystem and the digital image processing subsystem may be jointly adjusted based on a post-processing performance metric that takes into account the effects of the image processing. Unlike in conventional approaches, the intermediate optical image produced by the optical subsystem is not required to be high image quality since, for example, the image may be subsequently improved by other adjustments in the digital image processing subsystem. | 11-20-2008 |
