Abstract: A plurality of handheld or “mobile” information terminals send forth position information detected periodically toward an information delivery server 50; the information delivery server 50 comprises a position management unit 50-4 for generating image data used to compose for visual display certain users belonging to the same group onto the same land map image screen, a situation/history management unit 50-7 for arithmetically processing the user's distribution in units of target facilities and then generating information indicative of such distribution, an image management unit 50-9 for storing therein more than one photographic image as sent from mobile information terminal(s) in units of users or alternatively in units of groups and then transferring the stored image toward a target or “destination” mobile information terminal, and a route search management unit 50-6 for searching for a recommendable route in view of the degree of congestion and/or popularity as calculated at the situation/history manageme

Abstract: A plurality of handheld or “mobile” information terminals send forth position information detected periodically toward an information delivery server 50; the information delivery server 50 comprises a position management unit 50-4 for generating image data used to compose for visual display certain users belonging to the same group onto the same land map image screen, a situation/history management unit 50-7 for arithmetically processing the user's distribution in units of target facilities and then generating information indicative of such distribution, an image management unit 50-9 for storing therein more than one photographic image as sent from mobile information terminal(s) in units of users or alternatively in units of groups and then transferring the stored image toward a target or “destination” mobile information terminal, and a route search management unit 50-6 for searching for a recommendable route in view of the degree of congestion and/or popularity as calculated at the si

Abstract: An image processing method for automatically executing operation steps of repairing a defect of an image of a document which is read by a scanner and changing a background image in a short time and a recording medium for storing them. An image processing method comprising a step of separating background image data from said image data by processing by a maximum filter for comparing the brightness of each pixel constituting said image data with the brightness of peripheral pixels and replacing it with the maximum brightness; and a step of separating character and figure image data by subtracting the background image data obtained by the above step in (a) from the above image data.

Abstract: An image file for recording natural images, a generation method of the image file and an image display apparatus for displaying image data from this image file. The image file includes image data obtained by digitizing an original, and conversion tables for separating the color tones of the original into R, G and B and converting the changes of the color tones to input luminance-v-output luminance. The image display apparatus controls a color look-up table by the conversion tables read out from the image file, and displays the image data read out from the image file.

Abstract: An image display apparatus having a computer system and an image processor. The computer system includes: a personal computer having a CPU and a main memory; and input/output apparatuses such as magneto-optical disk drive, image scanner, full color printer, etc. The image processor which commonly uses a system bus of the computer system includes an independent dedicated image bus, a compression/expansion unit, an image memory read/write controller, image memories, and a video processor. Image data which is sent from the magneto-optical disk drive is decoded by the compression/expansion unit and is held in the image memories. The image data of the image memories is transferred to the video processor through a dedicated signal line and is displayed on a large screen projection display.

Abstract: An image processing method for automatically executing operation steps of repairing a defect of an image of a document which is read by a scanner and changing a background image in a short time and a recording medium for storing them. An image processing method comprising:(a) A step of separating background image data from said image data by processing by a maximum filter for comparing the brightness of each pixel constituting said image data with the brightness of peripheral pixels and replacing it with the maximum brightness; and(b) a step of separating character and figure image data by subtracting the background image data obtained by the above step in (a) from the above image data.

Abstract: An image display apparatus having a computer system and an image processor. The computer system includes: a personal computer having a CPU and a main memory; and input/output apparatuses such as magneto-optical disk drive, image scanner, full color printer, etc. The image processor which commonly uses a system bus of the computer system includes an independent dedicated image bus, a compression/expansion unit, an image memory read/write controller, image memories, and a video processor. Image data which is sent from the magneto-optical disk drive is decoded by the compression/expansion unit and is held in the image memories. The image data of the image memories is transferred to the video processor through a dedicated signal line and is displayed on a large screen projection display.

Abstract: In an information processing system for efficiently allocating a writing of a decoded pixel signal into a display memory to a period other than the period during which a read circuit accesses the display memory for reading out information to a display device for a display, the read circuit indicates to a decode/write circuit producing the decoded pixel signal a period during which the read circuit does not access the display memory, and the decode/write circuit writes the decoded pixel signal into the display memory at a timing at which the display memory is not accessed by the read circuit.

Abstract: When a document and a recording medium are moved in a vertical scanning direction to read the document and record signals on the recording medium, the read signals are stored in a line buffer memory. The present invention changes over hysteretically a high speed vertical scan mode and a low speed vertical scan mode in accordance with the number of the buffered code bits in the line buffer memory to read the document and record the signal on the recording medium. Thus, the present invention reduces the number of stops of vertical scan.

Abstract: The present invention provides a method for controlling the movement of a print medium to be printed, for example, in a facsimile device. The invention uses printing velocities for each line (or printing unit) to be printed, which are calculated based on the number of black picture elements in the image signal related to this line (or picture unit). These calculated printing velocities are stored each for succeeding line to be printed and are then used to determine the moving velocity of the print medium for the actual line being printed.

Abstract: A picture signal processing apparatus comprises a signal processing means for performing signal processing such as picture element density conversion of picture signals, a first memory means for storing temporarily picture signals as object of the signal processing, a first signal path through which signals are received or transmitted between the signal processing means and the first memory means, an encoding means for performing encoding processing, a second memory means for storing temporarily picture signals as object of the encoding processing, a second signal path through which signals are received or transmitted between the encoding means and the second memory means, a control means for controlling the signal processing means and the encoding means, and a third signal path through which signals are received or transmitted between the signal processing means and the encoding means, thereby signal processing and encoding processing can be performed concurrently and high speed processing is realized.

Abstract: A thermal recording apparatus has a thermal recording head constituted by heating elements disposed in parallel, a driver circuit actuated in response to a recording signal, and a control circuit which controls the driver circuit. The apparatus is arranged such that, when data in a memory which stores recording data to be output to the control circuit is transferred to a register in the driver circuit, an address signal for reading out the recording data in the memory is output to the driver circuit simultaneously with the recording data in the memory, thereby selecting a register in the driver circuit.

Abstract: An encoding/decoding system to be connected to an external microcomputer, video memory, photoelectric reader or printer comprises an address generator for generating an address to access the video memory word by word, a transition point detector for parallelly processing a video signal word by word to detect a color information transition point address, and execution unit for calculating an address difference from two color information transition point addresses or the color information transition point address based on a difference between two color information transition point addresses, an encoding/decoding table for converting an address difference to a code word and converting a code word to an address difference, and a decoded video signal generator for parallelly reproducing a video signal based on the address difference.

Abstract: A cathode ray tube having a viewing screen on which time points represented by a plurality of points spaced from one another with a predetermined time interval are displayed in the raster direction, while display quantities of trend graphs are displayed as functions of the time points in the direction perpendicular to the raster direction by a plurality of points spaced from one another with a predetermined interval. A raster scanning is effected by sweeping the viewing screen with a scanning point whereby the scanning lines thus produced are correlated to the spaced points representing the display quantities. Apparatus stores the display quantities of the trend graph corresponding to the time points, sequentially reads out the display quantities from the memory apparatus in the order of the time points, and compares the display quantities read out from the memory apparatus with a display quantity represented by an instant scan line.

Abstract: A display system for displaying information in response to an input video signal comprises a data control unit including a microprocessor and a microprogram memory for storing a program for the microprocessor, a refresh memory unit connected to the data control unit through an address bus and a data bus, and a video control unit for accessing display data stored in the refresh memory unit by a timing control unit to produce a video signal. The refresh memory unit comprises memories sectioned by byte, an I/O controller which receives a read/write control signal to indicate whether the access by the data control unit is read access or write access and an access memory specifying signal to indicate whether it is a one-byte memory access or a two-byte memory access to produce an I/O control signal, and a memory controller responsive to the I/O control signal to control data access to the two byte memories.

Abstract: A graph display apparatus using a CRT display unit of raster scanning type for displaying a graph with a high accuracy, that is, a high resolution. The apparatus comprises a raster counter for counting the number of rasters to identify the raster number of the scanning lines presently scanning the display screen of the CRT display unit, and a plurality of graph display units for displaying a graph with a standard accuracy.

Abstract: Disclosed is a raster scanning type CRT display apparatus having a microprogrammed processor for primarily controlling the input and output of data to and from an external information source. This CRT display apparatus comprises a plurality of cursor controlling registers having their contents set by the processor. The contents of these registers define the configuration of a cursor for displaying a data entry position on its screen, the decision with respect to the blinking of the cursor, and a period of the blinking.

Abstract: A data display control system for displaying respective data memorized in a plurality of refresh memories which is operable in various display modes including a selective picture display, a superimposed picture display and a shifting picture display. Individual data memorized in respective refresh memories contain each a display control bit adapted to determine whether or not the individual data are to be displayed on the screen. The data display control system reads out from the respective refresh memories a data information to be picture-displayed and only when the contents of a display control bit contained in the data information designate a display, it converts this data information into a video signal for a picture display. The contents of the display control bit are changeable for individual data.

Abstract: A computer system comprises a central processor unit, a single memory apparatus and an external processor unit which is adapted to read out N bytes of data in each period of T.sub.o. The number n of data remaining to be processed after a time elapse T.sub.1 (T.sub.1 < T.sub.o) from the beginning of the period T.sub.o is successively compared with the number m of data which can be read out continuously by the external processor unit during a remaining time span (T.sub.o -T.sub.1). So long as the number n is smaller than the number m the external processor unit is allowed to read out the data from the memory apparatus only when the central processor unit is not using the memory apparatus. On the other hand, when the number n becomes equal to the number m, connection between the memory apparatus and the central unit is interrupted to allow in turn the external processor unit to read out data from the memory apparatus, whereby the processing efficiency of the computer system is improved.

Abstract: An encoding/decoding system to be connected to an external microcomputer, video memory, photoelectric reader or printer comprises an address generator for generating an address to access the video memory word by word, a transition point detector for parallelly processing a video signal word by word to detect a color information transition point address, and execution unit for calculating an address difference from two color information transition point addresses or the color information transition point address based on a difference between two color information transition point addresses, an encoding/decoding table for converting an address difference to a code word and converting a code word to an address difference, and a decoded video signal generator for parallelly reproducing a video signal based on the address difference.