Casio Computer Co., Ltd.

Tomohisa Ishikawa

Yoichiro Tajima

Hideo Yamaya

Hideaki Ishida

Akihiro Handa

Takehiko Kayahara

Koji Yamana

A plurality of pad operating means for manual operation are provided on a keyboard panel of an electronic keyboard musical instrument. When an operator operates the pad operating means using the keyboard during melody play, an operation signal is supplied to a CPU, and a rhythm sound corresponding to the operated pad is generated under control of the CPU. An automatic sound signal generator is provided for generating and outputting sound signals according to a designated rhythm, and selectively stops such sound signal generation. A sounding system is provided for sounding the signals received thereby.

Electronic musical instrument having automatic sound signal generation

A plurality of pad operating means for manual operation are provided on a keyboard panel of an electronic keyboard musical instrument. When an operator operates the pad operating means using the keyboard during melody play, an operation signal is supplied to a CPU, and a rhythm sound corresponding to the operated pad is generated under control of the CPU.

Electronic musical instrument having rhythm-play function based on

A step signal of which the period varies according to random data is derived from a step pulse generator, and is supplied to an address counter. By the output data from the address counter, an address of a waveform ROM is specified. From a waveform ROM, the waveform based on the random data is output in the form of a distorted waveform signal. Using this output signal of the distorted waveform, a cymbal sound, for example, is generated in a musical tone generator.

Distorted waveform signal generator

An electronic keyboard musical instrument is capable of inputting rhythmic patterns by setting desired rhythmic patterns in memory circuits using the keys of keyboards. The set rhythmic patterns operate a rhythm source circuit when read out from the memory circuits during performance and thereby output rhythm sounds.

Electronic keyboard musical instrument capable of inputting rhythmic

Bar code data are read out by a bar code reader from a medium on which predetermined tone data are printed in the form of bar codes and are successively stored in a RAM. When a mode selection switch is set to a position 'NAVI', a LED provided in the vicinity of a performance key corresponding to the pitch of a tone next to be produced next, is turned on under the control of a control section. Performance of music can be obtained by successively operating performance keys indicated by associated LEDs turned on one after another.

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Kawagoe, Japan

Tomohisa Ishikawa