Abstract: An image coding apparatus comprises a divider for dividing an image into a plurality of coding blocks overlapped to each other, and a coder for coding them for each of the coding blocks divided by the divider.

Abstract: An image reading apparatus having a partition module between an image sensor module and a heat source (e.g., a laser-beam printer) includes a partition module disposed between the image sensor module and the heat source. The partition module has two walls with a gap therebetween for thermally insulating the image reading module from the heat source. Preferably, the partition module has an air intake port, and an air exhaust port, and a fan for circulating cooling air.

Abstract: Image data received via a communication line is stored in a data memory. The image data that has been stored in the image memory is not output intact but is subjected to a pixel reducing operation by a CPU. As a result, the image data is compressed in such a manner that an integral number of image pages will fit on one page on the receiving side. The resulting image is developed in a bit-map memory. Upon observing an output of an compressed image, the operator selects the necessary data and designates the required image using a keyboard. The designated image is read out of the data memory, developed intact in the bit-map memory and printed out in the received size.

Abstract: An image forming system including a printer unit connected to a scanner unit, each having their own housing. The scanner unit includes a display for displaying the states including error conditions of both the scanner unit as well as the printer unit. A user interface of the scanner unit inputs operation parameters and commands for the entire image forming system. The printer section includes an LED display section for displaying errors and the status of the printer unit. The printer unit and scanner unit are connected to each other using a single integrated cable.

Abstract: An image processing system including a correction pattern storing unit for storing correction patterns set corresponding to kinds of color fogs, a correction pattern selecting unit for selecting a correction pattern suitable for correction of input image, a correction amount storing unit for storing a correction amount indicative of an appropriate degree of correction on color fog, a tone curve generating unit for generating a tone curve of RGB based on a selected correction pattern and a correction amount stored in the correction amount storing unit, and an LUT converting unit for performing table conversion on image data of input image according to a generated tone curve to conduct color conversion processing of all the pixels of image data.

Abstract: A color image processing apparatus stores color image data, and an output device outputs the stored color image data to a connected device. A discriminator discriminates whether the connected device is a device that receives parallel image data or a device that receives color image data, and a controller controls the output device in accordance with the discrimination made by the discriminator.

Abstract: A system and method for processing and managing electronic copies of handwritten notes are provided. The system includes a processor for processing the handwritten notes to generate the electronic copies, with each electronic copy associated with a respective identifier corresponding to at least one set of the respective handwritten notes, in which the identifiers facilitate the management of the electronic copies. The system includes an electronic notepad and can also include devices operatively connected to the electronic notepad for operating with the electronic notepad to receive, manage, merge, and/or display the electronic copies from the electronic notepad.

Abstract: A computer implemented apparatus and method for transferring information from one set or sets of memory locations to another set or sets of memory locations. The present invention has particular advantageous use within a computer system specially implemented for pattern recognition applications, such as handwriting or voice recognition. The present invention includes a system with an automatic sequencer able to sequentially generate sequential source and destination addresses and able to generate appropriate data requests to internal and external memory controllers. The present invention memory to memory transfer unit allows memory transfer operations to occur in parallel with the operation of arithmetic pipelines that process pattern recognition procedures. Therefore, using the present invention, no additional processing time is consumed by a memory transfer. Double buffering is utilized to transfer information and process information in the same time frame.

Abstract: An apparatus for detecting the remaining sheets of paper supplied in a facsimile, is disclosed including a supplier for supplying paper; a generator for generating a signal corresponding to the mounting of the supplier and the number of sheets of paper supplied; a detector for detecting the signal of the generator; a calculator for calculating the number of sheets of remaining paper according to a detection signal; and a display for displaying the number of sheets of remaining paper calculated in the calculator.

Abstract: An image transmission system includes an image transmitting unit having a display to display a status of a receiving unit and a detector for detecting a size of an original and a record mode permitted for transmission. A variable number of items of functional information together with a message that explains an operation of the system can be displayed, and respective input positions are provided for requesting the input of the functional information for the items. The number of items displayed then depends on the number of input positions operated.

Abstract: Digital data is encoded using a modulus m converter to produce fractionally encoded words, where m is the nearest integer larger than 2.sup.c and c is a noninteger. The fractionally encoded words are mapped into a symbol constellation having m symbols to produce a two dimensional data signal. The data signal is added to a two dimensional analog signal, which was obtained by encoding an input analog signal, to produce a combined two dimensional signal. The combined signal is modulated using QAM and then transmitted over a communication channel.

Abstract: An image data processing apparatus for performing processing using data corresponding to a plurality of lines which correspond to a plurality of scanning lines at the time of reading an image. For example, when processing is performed using data corresponding to three lines, that is, the present line, a line one ahead of the present line and a line two lines ahead of the present line, a line memory having a capacity of two lines is used. When the data corresponding to the line two lines ahead of the present line are read out from the memory, the data corresponding to the present line are written to storage locations from which the data have been read out. Consequently, it is possible to perform processing using data corresponding to three lines using a line memory having a capacity for two lines.

Abstract: A switching arrangement is provided for coupling a transmitting unit to a transmission line. According to the present invention, a transformer is provided, whose secondary winding is a portion of the transmission line and whose primary winding is connected with the transmitting unit and integrated into a parallel resonance circuit, whose resonant frequency is tuned, each time, to the carrier frequency of the transmitted signal. In addition, a tuning unit may be provided for the automatic tuning of the parallel resonance circuit.

Abstract: An image coding method includes the steps of producing a complexity normalizing signal for respective macro blocks based on a complexity in a space domain with regard to an input image, producing a zero coefficient sum by performing a discrete cosine transform operation on the input image and counting the discrete cosine transform coefficients from -1 to +1, producing a zero coefficient normalizing value for respective macro blocks in accordance with the zero coefficient sum; producing a transient weight signal for respective macro blocks in accordance with the zero coefficient sum and a predetermined compression ratio, and summing the complexity normalizing signal, the zero coefficient normalizing value and the transient weight signal so as to produce the scale factor. The quantization step size of the discrete cosine transform coefficients is controlled in a macro block in accordance with the scale factor.

Abstract: The present invention is a digital imaging system for a copier that comprises a full-frame, two-dimensional sensor array to capture a document's image and a full-frame output light valve with backlight to flash expose the image onto a photoreceptor belt. The document is flash exposed to illuminate the page and the full-page image is captured by the full-frame, two dimensional sensor array. The sensor array then reads out the digital image data in response to a driver. The data is then input into the full-frame digital output light valve. The driver provides for the synchronous control of the system. Optionally, an electronic subsystem may perform digital image processing according to user demand--before the data arrives at the output light valve. After image processing (if any), the digital data, supplied to the full-page output light valve, forms a pattern on the display according to the data. The patterned image is then flash exposed by a backlight, through the light valve, and onto a photoreceptor.

Abstract: A facsimile apparatus includes a reading part for optically reading font pattern data by raster scanning of a font pattern sheet, a communication part for receiving image data from an external facsimile terminal via a telephone line and for transmitting image data read from a document to an external facsimile terminal via the telephone line, a memory part for temporarily storing image data received or transmitted by the communication part, a printing part for printing an image on a recording sheet in accordance with the image data stored in the memory part, a converting part for converting the font pattern data read by the reading part into bi-level image signals, and for supplying this font data to the memory part, a storage part for storing the font data produced by the converting part, and a control part for reading the font data from the storage part and for allowing the printing part to print an image by using the font data read from the storage part, so that the printed image includes data represented b

Abstract: An image processor inputs coded image data, which is comprised of a plurality of resolution levels, and image processor thereafter rearranges and stores the coded image data into image memory 4 so that the resolution levels of the coded image data can be stored into a consecutive address area of the image memory 4. Thereafter DMA controller 11 reads out the coded image data stored in the image memory 4 into decoder 7 by accessing the consecutive address area of the image memory 4. The decoder 7 decodes the coded image data transferred at high speed.

Abstract: The present invention is a two-step, contour-sensitive deinterlacing technique. The first step of the technique determines for each missing pixel of an interlaced frame of image pixels whether the absolute difference between the pixels above and below the missing pixel is greater than a preselected threshold value. If it is decided that the missing pixel lies at a low-vertical frequency location, its value is estimated via vertical interpolation. Otherwise, the second step is carried out. The goal of the second step is to determine whether or not there is a well-defined contour passing through the missing pixel, and to determine its direction if there is one. In the presence of a well-defined contour, the missing pixel is obtained by averaging the intensity values along the direction of the contour in the field lines immediately above and below the missing field line. Otherwise the process effectively falls back to vertical interpolation.

Abstract: A method and system is provided for minimizing resynchronization delays in a digital microwave radio system by, immediately upon detecting a signal degradation such as a loss of signal or an out-of-specification signal at any one of a series of digital microwave radio transmitters, setting the transmitter's elastic buffer to an average condition and thereby minimizing frequency offsets at all downstream transmitters and receivers during the degradation period.

Abstract: A laser scanning device is disclosed which includes a spinner, one light spot misalignment detector and a beam misalignment corrector. The spinner scans a light beam across a scanning line. The detector is located generally at a beginning of the scanned line and measures an initial misalignment of the light spot in a cross-scanning direction. The corrector dynamically corrects, during scanning along said scanning line, the scanning misalignment of the light beam in accordance with at least the initial misalignment. The corrector includes a pre-positioner which determines an offset for the initial misalignment, a pyramidal error estimator which estimates a first portion of the misalignment due to pyramidal error and a wobble estimator which estimate a second portion of the misalignment caused by wobble. The estimations are summed together and used for correcting the misalignment.