Digital semiconductor circuit for an electronic or

专利名称：Digital semiconductor circuit for an

electronic organ

发明人：ROSLER, HELMUT,MUHLBAUER, OTTO, ING.

GRAD.,DEMPF, JOSEF, ING. GRAD.,BIGALL,KLAUS-DIETER, DIPL.-PHYS.

申请号：EP81105031.9申请日：19810629公开号：EP0043532B1公开日：19871223

摘要：1. A digital semiconductor circuit for an electronic organ comprissing a number,corresponding to the number of keys of the organ keybord, of control inputs which areacted upon via the keyboard, and with a number of sound signal inputs which are suppliedby an oscillator system with periodic electrical oscillations, where each control input ispermanently assiged to one key of the keyboard and each sound signal input ispermanently assigned to one sound frequencly, where moreover one sound signaloutput serves to control an electro-acoustic transducer and where the control signals,which act upon the control inputs, correspond to logic levels \"1\" and \"0he individual control inputs are each assigned to one cell of a clock-controlled shiftregister which is operated as a parallel/series converter, where moreover the signaloutput of the shift register and the clock pulses which operate the latter serve to controla switching system which on the other hand is provided with all the provided sound signalinputs, where moreover the number of sound signal output is less than the number ofcontrol inputs and each of the sound signal outputs is assigned an amplitude shaper and

the outputs of the amplitude shapers are finally connected, via a mixing stage, to theelectro-acoustic transducer, characterized in that each of the octaves provided in thekeyboard (M) is assigned a mixing stage (Mir), tuned to the respective octave (Or), andthat the output (AGs) of each of the provided amplitude shapers (AFs) can be connected,in accordance with the octave assigned to the sound signal occurring in the respectiveampitude shaper (AFs) to the mixing stage permanently assigned to the respectiveoctave.

申请人：SIEMENS AKTIENGESELLSCHAFT BERLIN UND MUNCHEN

地址：Wittelsbacherplatz 2 80333 München DE

国籍：DE

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