Title:
ELECTRONIC KEYBOARD INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/2023/160545
Kind Code:
A1
Abstract:
The present invention provides an electronic keyboard instrument, and relates to the technical field of electronics. The electronic keyboard instrument comprises keys, carbon film contacts under the keys and sound source chips on a mainboard; the left hand and right hand or each finger playing the keyboard instrument respectively correspond to one or a group of mutually independent sound source chips; switch circuits are arranged between the conductive keys and the mutually independent sound source chips corresponding to the left hand and right hand or to each finger and disposed below the conductive keys; each switch circuit comprises a direct-current power supply and an optocoupler group identical in number to the number of keys, or comprises a single-chip microcomputer circuit and an optocoupler group identical in number to the number of keys; the switch circuits are connected via control lines to wire output ends on conductive gloves, and when two hands or a plurality of fingers wearing the conductive gloves simultaneously press the keys, the optocoupler groups in the switch circuits connected to the corresponding sound source chips are activated, further turning-on pins corresponding to the related sound source chips, thus playing stereophonic sounds of different sound sources.
Inventors:
JIANG ENLIANG (CN)
Application Number:
PCT/CN2023/077425
Publication Date:
August 31, 2023
Filing Date:
February 21, 2023
Export Citation:
Assignee:
JIANG ENLIANG (CN)
International Classes:
G10H1/26; G10H1/34
Foreign References:
| CN115206272A | 2022-10-18 | |||
| CN1377024A | 2002-10-30 | |||
| CN103700364A | 2014-04-02 | |||
| JPH08137466A | 1996-05-31 | |||
| CN1159636A | 1997-09-17 | |||
| JP2001184070A | 2001-07-06 |
Attorney, Agent or Firm:
JJS INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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