JPS5224518A - Key switch detection processing unit - Google Patents

Key switch detection processing unit

Info

Publication number
JPS5224518A
JPS5224518A JP50100879A JP10087975A JPS5224518A JP S5224518 A JPS5224518 A JP S5224518A JP 50100879 A JP50100879 A JP 50100879A JP 10087975 A JP10087975 A JP 10087975A JP S5224518 A JPS5224518 A JP S5224518A
Authority
JP
Japan
Prior art keywords
key switch
processing unit
detection processing
switch detection
much
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP50100879A
Other languages
Japanese (ja)
Other versions
JPS573949B2 (en
Inventor
Toshio Tomizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP50100879A priority Critical patent/JPS5224518A/en
Priority to GB33214/76A priority patent/GB1555980A/en
Priority to US05/714,084 priority patent/US4114495A/en
Priority to CA259,352A priority patent/CA1063843A/en
Priority to DE2660939A priority patent/DE2660939C1/en
Priority to DE2660940A priority patent/DE2660940C1/en
Priority to DE2637063A priority patent/DE2637063C2/en
Priority to IT26395/76A priority patent/IT1067657B/en
Priority to NLAANVRAGE7609269,A priority patent/NL188428C/en
Publication of JPS5224518A publication Critical patent/JPS5224518A/en
Priority to US06/188,006 priority patent/USRE31931E/en
Publication of JPS573949B2 publication Critical patent/JPS573949B2/ja
Priority to NLAANVRAGE8300485,A priority patent/NL188547C/en
Priority to CA000438683A priority patent/CA1184408B/en
Priority to CA000438682A priority patent/CA1184407B/en
Granted legal-status Critical Current

Links

Landscapes

  • Electrophonic Musical Instruments (AREA)

Abstract

PURPOSE: By reducing the time required for detecting the operation of a key switch as much as possible, the code indicating the operation key switch detected shall be generated with efficiency.
COPYRIGHT: (C)1977,JPO&Japio
JP50100879A 1975-08-20 1975-08-20 Key switch detection processing unit Granted JPS5224518A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
JP50100879A JPS5224518A (en) 1975-08-20 1975-08-20 Key switch detection processing unit
GB33214/76A GB1555980A (en) 1975-08-20 1976-08-10 Channel processor
US05/714,084 US4114495A (en) 1975-08-20 1976-08-13 Channel processor
CA259,352A CA1063843A (en) 1975-08-20 1976-08-18 Channel processor
DE2660939A DE2660939C1 (en) 1975-08-20 1976-08-18 Electronic musical instrument
DE2660940A DE2660940C1 (en) 1975-08-20 1976-08-18 Electronic musical instrument
DE2637063A DE2637063C2 (en) 1975-08-20 1976-08-18 Channel processor
IT26395/76A IT1067657B (en) 1975-08-20 1976-08-19 CHANNEL PROCESSOR
NLAANVRAGE7609269,A NL188428C (en) 1975-08-20 1976-08-20 ELECTRONIC MUSIC INSTRUMENT.
US06/188,006 USRE31931E (en) 1975-08-20 1980-09-17 Channel processor
NLAANVRAGE8300485,A NL188547C (en) 1975-08-20 1983-02-09 ELECTRONIC MUSIC INSTRUMENT.
CA000438683A CA1184408B (en) 1975-08-20 1983-10-07 Channel processor
CA000438682A CA1184407B (en) 1975-08-20 1983-10-07 Channel processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50100879A JPS5224518A (en) 1975-08-20 1975-08-20 Key switch detection processing unit

Publications (2)

Publication Number Publication Date
JPS5224518A true JPS5224518A (en) 1977-02-24
JPS573949B2 JPS573949B2 (en) 1982-01-23

Family

ID=14285601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50100879A Granted JPS5224518A (en) 1975-08-20 1975-08-20 Key switch detection processing unit

Country Status (1)

Country Link
JP (1) JPS5224518A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422680U (en) * 1977-07-18 1979-02-14

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610799A (en) * 1969-10-30 1971-10-05 North American Rockwell Multiplexing system for selection of notes and voices in an electronic musical instrument
JPS4871624A (en) * 1971-12-28 1973-09-27
JPS4984216A (en) * 1972-12-14 1974-08-13

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610799A (en) * 1969-10-30 1971-10-05 North American Rockwell Multiplexing system for selection of notes and voices in an electronic musical instrument
JPS4871624A (en) * 1971-12-28 1973-09-27
JPS4984216A (en) * 1972-12-14 1974-08-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422680U (en) * 1977-07-18 1979-02-14

Also Published As

Publication number Publication date
JPS573949B2 (en) 1982-01-23

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