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| Number | Title | Issue Date |
| 5579452 | Method of managing memory allocation in a printing system A method of managing memory allocation in a printing system including the steps of creating a plurality of blocks and designating each block with an identifier. In response to a request from a client, a first set of identifiers, corresponding with a first... | 11/26/1996 |
| 5577172 | High-capacity protocol for packet-based networks A network protocol facilitates high speed transmission of raster data from a server to a client. The protocol defines a first sub-protocol for negotiating a connection and preparing to transmit a print job, and a second sub-protocol for transmitting a lar... | 11/19/1996 |
| 5577183 | Printer system that stores compressed font glyphs in data blocks and decompressed glyphs in each data block together using same decompression procedure Data processing apparatus provides pixel data representations of font glyphs, and includes a memory which stores font data in plural groups of entries. A first group of entries comprises a series of data blocks, each data block including data-compressed f... | 11/19/1996 |
| 5574661 | System and method for inverse discrete cosine transform implementation An apparatus and method for calculation of the inverse discrete cosine transform for image decompression are disclosed. The apparatus may be implemented with approximately 10,000 transistors for MPEG2 main level speed and with less than 10,000 transistors... | 11/12/1996 |
| 5574834 | Image communication system for following a communication procedure to simultaneously transmit image code data An image processing/communication system provided with a processing unit for performing a coding processing on image data, a plurality of line memories for storing image data related to the coding processing and coding data, an external-bus connection con... | 11/12/1996 |
| 5570459 | Delivering and fetching font information An output device is enabled to obtain character descriptions for use in raster scanning characters which belong to a common character font. Character descriptions are stored in an external device which is linked to the output device by a communication cha... | 10/29/1996 |
| 5570465 | Apparatus, method and system for printing of legal currency and negotiable instruments A global network computer system to print legal currency and/or negotiable instruments at a designated location by the input of information to the global network computer system from a remote location. The global network computer system can receive the in... | 10/29/1996 |
| 5566278 | Object oriented printing system An object-oriented printing system includes objects that provide query, data transfer, and control methods. The inventive object-oriented printing system communicates with the remainder of the operating system by means of a standard interface such as a gr... | 10/15/1996 |
| 5566089 | Syntax parser for a video decompression processor A video syntax parser is provided for a video decompression processor. A compressed bitstream is examined until a start code is located. The start code is decoded to enable a particular parser state corresponding thereto to be initiated. The parser state ... | 10/15/1996 |
| 5563986 | Image processing system An image processing system for processing input image data according to the machine operation instructions described in a job control sheet and outputting the processed image data, comprises: instruction recognizing unit for recognizing the machine operat... | 10/08/1996 |
| 5559931 | Compression/decompression system which performs an orthogonal transformation in a time direction with respect to picture planes A compression/decompression system for an image data performs a motion compensated prediction and an orthogonal transformation in a time-direction with respect to a plurality of picture planes by combining one pair of an A-frame and a B-frame. The system ... | 09/24/1996 |
| 5559606 | Flexible configuration of document output terminals from autonomous machine modules An electronic image processing apparatus has a controller and a plurality of resources in an arbitrary configuration. Each of the resources includes an associated processor storing data related to operational constraints of the associated resource and a b... | 09/24/1996 |
| 5559933 | Distributed enterprise print controller A system and method for transferring and printing files originating on mainframe computer systems, workstations, or personal computers connected within a heterogeneous computer network is disclosed. The printer controller coordinates the distribution of p... | 09/24/1996 |
| 5559932 | Printer and computer system with detachable built-in printer A detachable built-in printer for printing print data supplied from a computer has at least an interface controller for interfacing with the computer, a print pattern generator, a printing unit, and a printer controller for controlling the whole operation... | 09/24/1996 |
| 5557538 | MPEG decoder An MPEG decoder which distributes the processing load to a plurality of processors and units including an external memory and a bus interface unit, a de-multiplexing data processor, an image data processor, an inverse transform and reconstruction processo... | 09/17/1996 |
| 5555435 | Automatic language boundary identification for a peripheral unit that supports multiple control languages A peripheral unit is able to receive a plurality of control languages, check for an occurrence of a control language job boundary, and to function in response to each control language. For PCL the steps that determine when to check for occurrence of a con... | 09/10/1996 |
| 5555351 | Host communication message manager for a label printing system with data collection capabilities A host communication message manager of a local bar code data processing and printing system allows one or more host processing systems to communicate with the local system to control the maintenance of data including bar code data stored in the local pro... | 09/10/1996 |
| 5555511 | Data processing system for picture coding processing A data processing system for a picture coding, includes a data memory for storing a discrete cosine transform (DCT) coefficient data successively transferred one after another, a flipflop set prior to the successive transfer of the DCT coefficient data, a... | 09/10/1996 |
| 5555350 | Multi-interpreter printer and process including recognition of out-of-bank characters A multi-interpreter printer recognizes out-of-band characters by measuring pauses in applied data streams and examining as candidate out-of-band characters data portions separated in time from other data by pauses exceeding predetermined durations. Pauses... | 09/10/1996 |
| 5552898 | Lossy and lossless compression in raster image processor Digital input commands defined in a page description language are separated in two types of instructions: first instructions resulting in solid regions on the printed output and second instructions resulting in halftoned regions. The first instructions ge... | 09/03/1996 |
| 5553202 | Accessory control device which transfers data from electronic device using part of address signal and latch An accessory control device, also called a cartridge, is coupled to an electronic device, such as a printer, and a large amount of data is transferred from the electronic device to the accessory control device. An electronic control device within the elec... | 09/03/1996 |
| 5553200 | Method and apparatus for providing bit-rate reduction and reconstruction of image data using dither arrays An apparatus and method for providing bit-rate reduction and reconstruction of image data. Bit-rate reduction of 32-bit CMYK combinations into 16-bit code words is performed on a pixel by pixel basis by stepwise calculations or by using LUTs. Bit-rate red... | 09/03/1996 |
| 5550954 | Image processing load balancing for a host processor with a connected binary level image printer Apparatus for processing and displaying binary pixel image data includes a printer for receiving image data and for presenting the image data as bilevel pixel values. The printer includes a processor for altering the received image data into an output ima... | 08/27/1996 |
| 5550957 | Multiple virtual printer network interface Multiple host computers on a network are connected through an interface, or network adapter, to a printer having a printer controller capable of bi-directional communication with the computers on the network. The interface communicates with the network co... | 08/27/1996 |
| 5548687 | Method and apparatus for controlling a printer using the N/2r format A system for compressing numbers represented in clear text format of a Standard Page Description Language (SPDL) in which numbers are compressed to a binary format represented by N/2r. Only numbers which are integers or have a decimal portion f... | 08/20/1996 |
| 5544286 | Digital video data compression technique A technique for compressing digital video data provides improved compression over conventional block compression techniques. In this technique, image data is broken down into cells and iteratively compressed. The cells are compressed using compression for... | 08/06/1996 |
| 5544287 | On-line barcode printer system with multi-level user printer commands A barcode printer system is shown having a host processing system in communication with a barcode printer. The host processing system converts multi-level user input printer commands into a data stream in the printer control language of the barcode printe... | 08/06/1996 |
| 5542050 | Font information transfer system A font information transfer system in a network system including a network, a workstation, and a printer connected to the workstation through the network. In the font information transfer system, the workstation includes a font information generation sect... | 07/30/1996 |
| 5541582 | Apparatus for data communication switching A serial communication apparatus for directing data from a plurality of data input devices to a single data output device comprising a plurality of serial input connectors, a serial output connector, and logic and driver circuitry. The logic and driver ci... | 07/30/1996 |
| 5542031 | Halftone computer imager A computer imager for processing computerized data receives signals in PostScript format. An interpreter generates compressed data signals for presentation to a rasterizer. The rasterizer and interpreter utilize parallel processing and differentiate betwe... | 07/30/1996 |
| 5539662 | Process, apparatus and system for transforming signals using strength-reduced transforms The complexity of a plurality of signals in a first domain are characterized. A transform is selected in accordance with the complexity of the plurality of signals, wherein the selected transform is one of a plurality of transforms having differing comple... | 07/23/1996 |
| 5539865 | Method and apparatus for processing data for a visual-output device with reduced buffer memory requirements A two-dimensional page representation to be printed has a combination of text, graphic and image representation types. A data memory stores data representative of the page representation. A program memory stores program instructions including a plurality ... | 07/23/1996 |
| 5537626 | Apparatus for coupling printer with LAN to control printer operation by transferring control parameters, printer status data and printer configuration data between printer and LAN Method and apparatus for interfacing a printer to a local area network utilizes a circuit board coupled to the printer. A Small Computer System Interface (SCSI) is disposed on the board for transmitting print data to the printer and for receiving printer ... | 07/16/1996 |
| 5535307 | Printing of variable dot sizes dependent upon image density for improved graphics The present invention improves the quality of halftone graphics patterns which convey shades of gray using dots. In the preferred embodiment, an initial low resolution graphics pattern is translated into a higher resolution graphics pattern by printing a ... | 07/09/1996 |
| 5535311 | Method and apparatus for image-type determination to enable choice of an optimum data compression procedure A method for identifying an image type of a multi-pixel image is employed in an apparatus that includes multiple data compression procedures. The data compression procedures operate with varying efficiencies on different image types. Pixels defining an im... | 07/09/1996 |
| 5533174 | Network font server A font server communicates with workstations and printers, i.e., clients, on a network and provides them with font-specific information that allow them to select a licensed font and to specify how to customize the font. The font server responds to a clien... | 07/02/1996 |
| 5533172 | Method of printing a print job with a print file A method of printing a job in either a first mode or a second mode, to produce a set of prints from a set of print-related information transmitted to a print file, is provided. In the first mode, which occurs when the set of print-related information is l... | 07/02/1996 |
| 5533175 | Low cost page printer system and method A printer controller with a gate array capable of performing image data reception, image data decompression and relocation, image data serialization to reduce the memory and CPU requirements. The controller cooperates with a host computer printer driver a... | 07/02/1996 |
| 5532717 | Method of displaying time series data on finite resolution display device The method of the present invention minimizes the time required to display portion of a time sampled data file. A plurality of compressed data files are generated based on the time sampled data file. Each of the compressed data files is defined by a corre... | 07/02/1996 |
| 5533173 | Method and apparatus for processing a color map using discrete cosine transforms A method for processing color mapping data includes the steps of performing a discrete cosine transform on color descriptors resulting in a set of corresponding discrete cosine transform (DCT) coefficients. Selected discrete cosine transform coefficients ... | 07/02/1996 |
