Abstract: A method of recording a real-time multimedia presentation and replaying a missed portion at an accelerated rate until the missed portion catches up to the current point in the presentation. The multimedia presentation may consist of audio, video, graphics, and text. A graphical timeline is provided to allow the user easy access to different points in the recorded presentation. All the media formats are synchronized at the accelerated rate and the audio is accelerated without changing its pitch.

Abstract: In a raster output scanning system (ROS) of a xerographic printing device, a plurality of input optical channels direct at least one of a plurality of light beams onto separate facets of a deflector, which may be a rotating polygon mirror. The deflector deflects the light beams onto disparate optical paths. An optical system located on the disparate optical paths directs at least one of the light beams onto each of first, second, third and fourth image receiving locations. The image receiving locations may comprise a plurality of photoreceptors.

Abstract: Input image information is divided into blocks each consisting of N.times.N pixels (N: positive integer) by a blocking section to obtain blocked image information. The blocked image information is coded by a coding section. At this time, a coding parameter used in the coding section is estimated by a code amount control section, and the coding section repeats coding plural times until the amount of coded information reaches a target code amount. Then, the coding parameter attaining the target code amount is set into the coding section to perform final coding and output final coded information. In the coding process, a block average as the average of the blocked image information in each block is calculated in any cycle of repetition of coding other than the final cycle. By the use of this block average, an image showing the approximation of the image information can be generated.

Abstract: An object tracking and motion control system includes a thermal marking unit such as a laser for inducing localized thermal indicia on objects. A thermal tracking unit, typically a micro electro mechanical system (MEMS) such as a two dimensional thermal sensing array, is positioned to measure movement of objects marked with localized thermal indicia. A motion control unit is connected to the thermal tracking unit to permit adjustment of motion of objects marked with induced localized thermal indicia based on their measured movement.

Abstract: A processor is provided with first and second document images. The first image represents an instance of a reference document to which instance a mark has been added. The second image is selected from among a collection of document images and represents the reference document without the mark. The processor automatically extracts from the first document image a set of pixels representing the mark. This is done by performing a reference-based mark extraction technique in which the second document image serves as a reference image and in which substantially the entirety of the first document image is compared with substantially the entirety of the second document image. Also, the processor is provided with information about a set of active elements of the reference document. The reference document has at least one such active element and each active element is associated with at least one action.

Abstract: A method and apparatus for checkerboard printing by a liquid ink printing apparatus. A liquid ink printing apparatus, such as a thermal ink jet printer, includes circuitry for reducing video data clocking in checkerboard printing by controlling the odd and even vertical print strokes of a reciprocating printhead mounted to a scanning carriage. The amount of bitmapped imaged data, also known as video data, is reduced by one half or more and sent to the printhead for printing checkerboard patterns. Reduction of the bitmapped image data is accomplished by a data packer circuit which selects certain bits of the bitmapped image data for printing by the printhead in a checkerboard pattern. At the printhead, the bitmapped image is reconstructed by a data unpacker circuit to cause selective ejection of ink from the appropriate nozzles of the printhead. Two or more passes information are printed to complete printing of the bitmapped image data.

Abstract: A groupware system in which, by specifying a destination by means of simple data transmission destination information, an individual person is able to rewrite data in a common work space and an operator is able to transmit and receive data between work stations with ease.

Abstract: A valving connector used in a thermal ink-jet printer for filling and draining ink from a manifold of the printbar. The valving connector has two positions depending on the operation of the printer. In the first position, the top portion of the manifold is filled with air, and the bottom portion of the manifold is connected to a vacuum. The ink is drained from the manifold until empty, then the printbar can be removed and replaced. In the second position, the top portion of a manifold is connected to the vacuum and the bottom portion of the manifold is connected to the ink supply. In this second position, the manifold is supplied with ink during printing operations. An ink handling system with such a valving connector delivers ink to the printbar on demand. The ink handling system has a replaceable ink supply and a diaphragm valve to regulate the flow of ink to the manifold. A needle assembly extracts ink from the ink supply and delivers the ink to the diaphragm valve.

Abstract: Disclosed is a migration imaging member comprising (1) a substrate, (2) a softenable layer situated on the substrate, said softenable layer comprising a softenable material and a photosensitive migration marking material, and (3) an overcoating layer situated on the surface of the softenable layer spaced from the substrate, said overcoating layer comprising a material selected from the group consisting of: (a) polyacrylic acids, (b) poly (hydroxyalkyl methacrylates), (c) poly (hydroxyalkylacrylates), (d) vinyl alcohol-vinyl acetate copolymers, (e) vinyl alcohol-vinyl butyral copolymers, (f) alkyl celluloses, (g) aryl celluloses, (h) hydroxyalkyl cellulose acrylates, (i) hydroxyaryl cellulose acrylates, (j) hydroxyalkyl cellulose methacrylates, (k) hydroxyaryl cellulose methacrylates, (l) cellulose-acrylamide adducts, (m) poly (vinyl butyrals), (n) cyanoethylated celluloses, (o) cellulose acetate hydrogen phthalates, (p) hydroxypropylmethyl cellulose phthalates, (q) hydroxypropyl methyl cellulose succinates, (

Abstract: A toner composition comprised of resin, pigment particles, wax, and a surface additive of silica treated with a dimethyl silicone fluid.

Abstract: A method for producing an optical element, the method comprising the steps of: forming a liquid crystal polymer layer on a sheet-form substrate; forming a surface protective layer on the liquid crystal polymer layer; and carrying out a heat-treatment for crosslinking the liquid crystal polymer, or the method comprising the steps of: forming a liquid crystal polymer layer on a sheet-form substrate; carrying out a first heat-treatment for controlling the multidomain structure of the liquid crystal polymer layer; forming a surface protective layer on the liquid crystal polymer layer; and carrying out a second heat-treatment for crosslinking the liquid crystal polymer layer.

Abstract: In a hard-copy scanner in which a set of photosensitive silicon chips are abutted to form a single page-width array of photosensors, the photosites at the critical ends of each chip are irregularly spaced, relative to the other photosites on the chip. This irregular spacing enables compensation for imprecisions in the dimensions of individual chips. The spacing principle can be applied as well to LED's or portions of ink-jet ejectors.

Abstract: A document server is provided for processing a distribution job in a document processing system. The document processing system includes a document manager, communicating with first and second virtual services, for coordinating the storing or processing of first and second copies of an image data set at the first and second virtual services, respectively. The document processing system further includes a distribution agent, communicating with the document manager, for receiving a first job ticket, including attributes for controlling the storing or processing of the first copy of the image data set at the first virtual service and a second job ticket for controlling the storing or processing of the second copy of the image data set at the second virtual service.

Abstract: A positively charged liquid developer comprised of a nonpolar liquid, thermoplastic resin particles, pigment, a charge director, and a charge control agent comprised of a PEO:PPO, preferably in a solid form.

Abstract: A non-blocking switching network for routing packets from a plurality of inputs to a plurality of outputs includes a reservation ring mechanism for resolving conflicts among inputs contending for access to specified ones of said outputs. This reservation ring performs a sequence of step and compare operations in top-to-bottom ring-like order during at least one arbitration cycle for granting contending inputs access to said specified outputs in a top-to-bottom order that is also consistent with the order required by self-clocked weighted fair queueing or, alternatively, virtual clock, with up to a maximum permissible plural number of contenders being given access to such an output on each of the arbitration cycles.

Abstract: A technique for automatically generating thematic summaries for machine readable representations of documents. The technique begins with determining the number of thematic terms to be used based upon the number of thematic sentence to be extracted. To insure some commonality of theme between extracted sentences, the number of thematic terms used should be less than the number of thematic sentences to be extracted. Having determined the appropriate number of thematic terms, next the method identifies the thematic terms within the document. Afterward, each sentence of the document is scored based upon the number of thematic terms contained within the sentence. The desired number of highest scoring sentences are selected as thematic sentences.

Abstract: An apparatus for maintaining a uniform temperature along its axis by increasing the heat transfer efficiency. The apparatus uses a sealed chamber containing a substantially pure working fluid in a two phase (liquid and vapor) condition. The vaporization and condensation of the fluid increases the heat transfer efficiency and tends to equalize temperature gradients in a body in contact with the apparatus. The apparatus is utilized in various locations in an electrophotographic printing machine and can be used as a pressure roll for a heat and pressure fuser, a support or drive roll for a photoreceptive member, a support member for a photoreceptor and a heat sink for a developer housing.

Abstract: A method of skipping white spaces during the marking of an image onto a recording medium with a marking device includes the steps of detecting a white space in the image between a previous image block and a next image block, positioning a marking element of the marking device adjacent an output starting position on the recording medium, and marking the next image block on the recording medium. The marking device includes a marking element and a controller. Each white space is interposed between two image blocks, which include adjacent image data lines. The controller controls the marking element to mark the image in swaths. Each swath of the marking element is capable of marking more than one image data line. The output starting position is determined such that the marking device marks the next print block using a minimum number of swaths. As a result, the operating speed and throughput of the marking device are increased.

Abstract: A system for imaging both of the first and second opposing sides of duplex documents with higher productivity, with a generally "V" shaped low profile document sheet feeding path with first and second arms merging at a base position having a document reversing system, for sequentially feeding documents from an input tray through the first arm to the base position, and then back through the second arm to an output tray. A first imaging station is in the first arm for imaging the first sides of the documents, and a second imaging station is in the second arm for imaging the second sides. Both imaging stations have a simple, partially shared fixed elements optical system mounted entirely inside the document path, which can share a single electro-optical digital imager. The duplex documents are not inverted, yet are returned to the output tray in the same orientation as the stack in the overlying input tray. Compatible simplex document copying can also be provided.

Abstract: In a process for producing a chlorogallium phthalocyanine crystal comprising mechanically dry-grinding chlorogallium phthalocyanine and subjected to crystal conversion, the weight ratio of chlorogallium phthalocyanine to the grinding media is set at a range of from 1/5 to 1/000. The resulting chlorogallium phthalocyanine crystal excels in the dispersibility in a binding resin and the stability in the dispersion.