EP 3125232 A1 20170201 - POWER CONTROL DEVICE OF ELECTRONIC MUSICAL INSTRUMENT
Title (en)
POWER CONTROL DEVICE OF ELECTRONIC MUSICAL INSTRUMENT
Title (de)
STROMVERSORGUNGSSTEUERUNGSVORRICHTUNG FÜR ELEKTRONISCHES MUSIKINSTRUMENT
Title (fr)
DISPOSITIF DE COMMANDE D'ALIMENTATION ÉLECTRIQUE D'INSTRUMENT DE MUSIQUE ÉLECTRONIQUE
Publication
Application
Priority
JP 2015149326 A 20150729
Abstract (en)
When a first state signal is outputted from a latch circuit while a lid is open, a power control circuit turns off electricity supply to a main control unit based on the first state signal. On the other hand, when a second state signal is outputted from the latch circuit when the electricity supply to the main control unit is off, the power control circuit turns on the electricity supply to the main control unit based on the second state signal. Therefore, while the lid is open, even after the electricity supply to the main control unit is turned off in response to no operation being performed over the predetermined time, by operation of the second switch, the second state signal is outputted from the latch circuit. Thus, the electricity supply to the main control unit can be turned on without temporarily closing the open lid.
IPC 8 full level
G06F 1/32 (2006.01); G10H 1/18 (2006.01); G10H 1/34 (2006.01)
CPC (source: EP)
G10H 1/18 (2013.01); G10H 1/34 (2013.01); G10H 2230/035 (2013.01)
Citation (applicant)
Citation (search report)
- [A] WO 9221081 A1 19921126 - ZENITH DATA SYSTEMS CORP [US]
- [A] JP 2008090029 A 20080417 - KAWAI MUSICAL INSTR MFG CO
- [A] JP 3087732 B2 20000911
- [A] JP H10124196 A 19980515 - KAWAI MUSICAL INSTR MFG CO
- [A] JP 2008304750 A 20081218 - YAMAHA CORP
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 16162869 A 20160330; JP 2015149326 A 20150729