Abstract: In order to enable the gentlest possible scrolling of an image to be presented on a display unit, without restricting the scrolling range and with a low outlay, an image area is defined that is larger than the image area that can be presented on the display unit. This larger image area is subdivided into a number of image area sections to which the image data of a corresponding memory section of a frame buffer provided for storing the image data of the image area are assigned by means of corresponding address information items.

Abstract: The present invention relates to a method for representation of teletext information in an image of a display device constructed pixel by pixel, wherein the method comprises the following steps: furnishing a teletext signal comprising a sequence of teletext characters, selecting a character from a character set, comprising a matrix of pixels, associated with each encoded teletext character, representing the selected character pixel by pixel on the display device, wherein a first and a second character set is furnished and the characters associated with the encoded teletext characters are selected from the first or second character depending on whether teletext pages are to be represented one above the other in the vertical direction on the display device.

Abstract: In order to enable the gentlest possible scrolling of an image to be presented on a display unit, without restricting the scrolling range and with a low outlay, an image area is defined that is larger than the image area that can be presented on the display unit. This larger image area is subdivided into a number of image area sections to which the image data of a corresponding memory section of a frame buffer provided for storing the image data of the image area are assigned by means of corresponding address information items.