| 摘要 |
<p>PURPOSE:To perform character conversion securely at a high speed and to speed up the drawing-up of a document and to improve its operability by converting a capital letter into a small letter or vice versa at every unit of character, word, line, paragraph, or page collectively. CONSTITUTION:A keyboard device 30 is provided with a character input key 30a and control input key 30b, and a key signal from the device 30 is supplied to a keyboard control circuit 31 to output a code signal, corresponding to the key signal, to a device control circuit 32. This circuit 32 exercises control corresponding to keying operation and also moves a cursor to a displayed position ocrresponding to a signal from a cursor control circuit 33. A character code signal from the circuit 32 is supplied to a buffer memory 34 and then stored at the position of a document memory 37 according to an address from an address circuit 38. Further, a discriminating circuit 36 discriminates the kind of the character code and under the control of the circuit 32, a character converting circuit 35 performs character conversion by respective units at a time, to speed up the drawing-up of a document.</p> |
