Heydt, G.G.HeydtRaupach, R.R.Raupach2022-03-082022-03-081978https://publica.fraunhofer.de/handle/publica/301596DE 2657064 C UPAB: 19930901 The method uses a cassette recorder or a dictation machine originally designed for sound reproduction. The Braille characters are electronically stored during reproduction by a tape recorder, covering one page of script of the normal size, in a preliminary (3) and in an operating (4) store, and reproduced in lines in a tactile display without pauses due to the recorder operation. The number of characters in this line is only a little smaller than that normally used in Braille print. A writing keyboard is connected with the operating store so that the user can store the written Braille texts up to the size of a page, and then record them page by page on the tape by the tape recorder.de608621patent1976-2657064