Abstract: The invention relates to a device for the representation of tactile characters, in particular in Braille, comprising tactile elements which are combined in groups, wherein a tactile character consists in each case of a matrix of tactile points, which can be arranged in two adjacently arranged columns of points and at least two lines of points, wherein the four possible combinations of two tactile points of tactile points arranged adjacently in a line of points are in each case arranged on a common tactile element.

Abstract: The invention relates to a device for the representation of tactile characters, in particular in Braille, comprising tactile elements which are combined in groups, wherein a tactile character consists in each case of a matrix of tactile points, which can be arranged in two adjacently arranged columns of points and at least two lines of points, wherein the four possible combinations of two tactile points of tactile points arranged adjacently in a line of points are in each case arranged on a common tactile element.

Abstract: The invention relates to a device and to a method for optically detecting and receiving, in particular for digitising, interconnected sheets (10) along a margin (6), in particular a book (7), comprising a bearing and/or securing device (8) for the sheets (10) and a receiving device (1) which comprises two angular imaging surfaces (2) which have a common vertex edge (3) and which are arranged in relation to each other, in addition to at least one receiving unit (19). The bearing and/or securing device (8) and the receiving device (1) are arranged in a displaceable manner in relation to each other, such that the vertex edge (3) of receiving device (1) and the margin (6) of the sheets (10) can be joined together. The receiving device (1) comprises traction means (15, 16) which are used to catch at least one sheet (10?) when removing the vertex edge (3) of the receiving device (1) from the margin (6) of the sheets (10).

Abstract: A device for forming a tactilely readable display including Braille characters includes a planar display carrier wherein consisting essentially of a belt of flexible material which forms a closed loop and revolves about two rotating rolls. Circular openings are provided on an outer side of the belt loop, the inner side of the belt being provided with a multiplicity of recesses communicating with respective openings in the outer side of the belt. A steel ball may be lodged in each of the recesses, a portion of each ball protruding through the associated opening to form a spherical raster dot on the outer side of the belt. An upper portion of the belt passes over a contact plate, which forms a reading zone of the Braille display device, while a lower portion of the loop passes through a steel ball container in which all of the recesses become occupied by a respective ball.