Abstract: A system for selling goods a purchaser desired to purchase via a network. This system has: a table in which units of a variety of goods according to the number of goods and ranges to which the units are applied are stored; a section detecting the number of goods to be purchased on the basis of an identification code of one or more goods received from the purchaser; a section reading at least one unit applied to the goods to be purchased from the table on the basis of the detected number of goods; and a section of calculating the number of goods belonging to the range to which the read at least one unit is applied and calculating a purchase price by using the read unit and the calculated number of goods.

Abstract: A system that can register a plurality of kinds of fonts for one external character and can create an external-character file for each font, in a short time, is provided.

Abstract: A character processing apparatus includes a receiving section receiving a request for character information, a code allocating section allocating a code to the requested character information, a control section controlling creation of the requested character information, and a setting section setting created character information with respect to the allocated code.

Abstract: A primary binary image is converted into a weighted multivalued image with pixel values weighted. An upper shift-inverting unit inverts the pixel values, shifts them upward by one dot, and thus converts the primary binary image into an inverted upper-shifted image. A lower shift inverting unit inverts the pixel values, shifts them downward by one dot, and thus converts the primary binary image into an inverted lower-shifted image. A right shift inverting unit inverts the pixel values, shifts them rightward by one dot, and thus converts the primary binary image into an inverted right-shifted image. A left shift inverting unit inverts the pixel values, shifts them leftward by one dot, and thus converts the primary binary image into an inverted left-shifted image. A gradation processing unit subtracts the inverted upper-shifted image, inverted lower-shifted image, inverted right-shifted image and inverted left-shifted image from the weighted multivalued image, thereby synthesizing these pieces of image data.

Abstract: In a system for adjusting the tension of an endless transmitting belt in an internal combustion engine, a control system automatically adjusts the tension to be applied from a tensioner to the endless transmitting belt. The control system includes a driving-side rotational state detecting device for detecting the rotational state of a driving wheel which drives the endless transmitting belt. A driven-side rotational state detecting device detects the rotational state of a driven wheel driven by the endless transmitting belt. A control unit calculates a difference in rotational phase between the driving and driven wheels from results of detection by both rotational state detecting devices and controls the operation of a tension changing device in accordance with the difference in rotational phase. Thus, it is possible to accurately and quickly accommodate a very small variation in tension of the transmitting belt without specially using a strain gauge.