JPS5478629A - Character pattern generating system - Google Patents

Abstract

PURPOSE:To ensure the character magnification with no deterioration of the character quality by multiplying the black dot coordinates value sent from the register by the character size variable constant sent from the character size register and giving an operation to the black dot coordinates value within the magnified character pattern to turn the value into the integer. CONSTITUTION:The standard character pattern is memroized in font memory 4 within the dot matrix and in the form of the black dot coordinates value, and then read out. Then the character pattern is sent to buffer memory 5, and lateral one line is supplied to, for example, register 6. On the other hand, decoder 3 sends the character size variable constant which is sent from CPU along with the character code is sent to character size register 10. Here, arithmetic circuit 7 multiplies black dot corrdinates value supplied from register 6 by the character size variable constant from register 10. Then black dot coordinates value i within the magnified character pattern is calculated based on Eq. 1 and via the gauss mark [ ], and the character pattern magnified and changed to the integer is sent out to printer 9. Thus, the magnified character pattern can be obtained with no deteriration of the character quality.