Automatic performing apparatus

• US 4,341,140 A
• Filed: 01/22/1981
• Issued: 07/27/1982
• Est. Priority Date: 01/31/1980
• Status: Expired due to Term

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: Ishida, Hideaki
• Primary Examiner(s): Truhe, J. V.
• Assistant Examiner(s): Isen, Forester W.
• Application Number:
  US06/227,537
• Time in Patent Office: 551 Days
• Field of Search: 84/1.03, 84/1.24, 84/1.27, 84/477 B, 84/477 R, 84/484, 84/DIG. 12
• US Class Current: 84/711
• CPC Class Codes: G10H 1/0091 Means for obtaining special acoustic effects combined with modulation G10H1/043
• CPC Class Codes: G10H 1/26 for automatically producing a series of tones
• CPC Class Codes: G10H 2220/185 Stick input, e.g. drumsticks with position or contact sensors
• CPC Class Codes: G10H 2220/206 Conductor baton movement detection used to adjust rhythm, tempo or expressivity of, e.g. the playback of musical pieces
• CPC Class Codes: G10H 2220/521 Hall effect transducers or similar magnetic field sensing semiconductor devices, e.g. for string vibration sensing or key movement sensing
• CPC Class Codes: Y10S 84/12 Side; rhythm and percussion devices

Abstract

In an automatic performing apparatus, an amount of change in a motion of a moving element provided in a baton is detected, and the detected change amount is converted into an electrical signal. A tempo clock signal generator provided in the apparatus is driven by the electrical signal to produce a tempo clock signal for reading out musical data preset in a memory. A volume level of a musical tone is set by a control section on the basis of the data of a peak level of the change amount in the motion of the baton. The tone data stored in the memory is read out on the basis of the tempo clock and is automatically sounded as a musical sound, at the set volume level.

Claims

1. An automatic performing apparatus comprising detecting means for detecting an amount of change in a motion of a baton;

clock signal generating means for generating tempo clock signals on the basis of the motion change amount of the baton detected by said detecting means;

a memory for sequentially storing tone data; and

tone generating means for generating a tone dependent on said tone data read out from said memory in accordance with said tempo clock signal.

2. An automatic performing apparatus according to claim 1, wherein said baton includes a moving element;

and sensor means for detecting an amount of change in a motion of said moving element and delivering an electronic signal representing the detected amount of change in motion of said moving element.

3. An automatic performing apparatus according to claim 2, wherein said baton further includes a transmitter for transmitting an output signal from said sensor means, and an external receiver receives the transmitted signal from said transmitter to detect the change in the motion of said baton.

4. An automatic performing apparatus according to claim 1, wherein said detecting means detects volume level data on the basis of the change in the baton motion and includes means for transmitting the volume level data to a volume control means to effect a volume control.

5. An automatic performing apparatus according to claim 4, wherein said volume control means is a voltage controlled amplifier.