| 摘要 |
<p>PURPOSE:To enable common use of a line for control signals and a line for recorded information signals by connecting in series the first shift register conducting serial-parallel conversion of recorded informations with the second shift register conducting serial-parallel convertion of control signals. CONSTITUTION:In the foregoing part of the first shift register 5 conducting serial-parallel conversion of recorded information signals, the second shift register 7 conducting serial-parallel conversion of control signals given to output control terminals 61-6n for each of groups SR1-SRn of the shift register 5, and the register 7 is connected in series with the regiter 5 is provided. The serial output of the shift register 7 is given to the first group SR1 of the shift register 5, while the parallel output thereof is given to the terminals 61-6n, and in an input terminal 4 are inputted the recorded information signals R and the control signals D in series in the order of R and D. Finally, signals R are stored in the shift register 5 and D in the shift register 7, and driving elements 2 are subjected to an ON-OFF control in parallel for each of the groups SR1-SRn of the shift register 5 and thereby heating resistors 1 are driven separately.</p> |
