Character and graphics transmission

Details Character and graphics transmission Character and graphics transmission

G - Physics

06

F

354/236.14

G06F 3/12 (2006.01) H04L 21/00 (2006.01) H04N 1/00 (2006.01) H04N 1/032 (2006.01) H04N 1/04 (2006.01) H04N 1/411 (2006.01) H04N 1/413 (2006.01)

Patent

CA 1120159

A B S T R A C T This invention relates to a method and to an arrangement for selectively transmitting predetermined characters or graphic patterns. In a transmission of graphic patterns, data words are assigned to graphic patterns which have the same format as the data words and are transmitted instead of the data words assigned to the predetermined characters. In the receiving station the code words are transformed into binary bit sequences and fed to a mosaic printing head instead of the bit sequences emitted by a character generator in the receiving station. A switch-over character is transmitted to change between data word transmission and graphic word transmission. Only slight modifications are required in the transmitting and receiving stations to enable the transmission of graphic patterns in addition to predetermined data characters.

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