JPS5468220A - Electronic musical instrument - Google Patents
Electronic musical instrumentInfo
- Publication number
- JPS5468220A JPS5468220A JP13511777A JP13511777A JPS5468220A JP S5468220 A JPS5468220 A JP S5468220A JP 13511777 A JP13511777 A JP 13511777A JP 13511777 A JP13511777 A JP 13511777A JP S5468220 A JPS5468220 A JP S5468220A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- key
- foot
- period
- state
- 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.)
- Pending
Links
Landscapes
- Electrophonic Musical Instruments (AREA)
Abstract
PURPOSE: To secure the signals of the periods of actual key operations and enable smooth musical tone performance to be executed by detecting whether keyboards are in a key touch state or key detach state from the tone assignment signals of series timings and contolling the memory circuits which store these.
CONSTITUTION: An S-R.FF 42a is always set by the sequence signal S4 which cyclically transfers its state at every one period of the timing output signls corresponding to each pitch name of keyboards. The FF 42a is set by the tone assignment signal DP which comes in first in the period other than the signal S4 after the key touch start. The output Q thereof is transmitted by clock signals τ3 + τ5 + ... + τ8 to a D.FF 42b, c to become the foot key press signal FOOT. This FOOT signal is latched by the signal S3 in a latch circuit 43a becoming the PEDAL-ON signal indicating the foot key pressing. Since the FF 42a is reset by the signal S4, the FOOT signal also becomes a low level with a slight delay than the signal S4 but the PEDAL-ON signal is latched at the timing of the signal S3 and therefore maintains a high level as long as the key touch stage is continued. Thereby, the signal of the period for the actual key operation may be secured.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13511777A JPS5468220A (en) | 1977-11-10 | 1977-11-10 | Electronic musical instrument |
| US05/914,684 US4240316A (en) | 1977-06-17 | 1978-06-12 | Keyboard type electronic musical instrument |
| IT24552/78A IT1096655B (en) | 1977-06-17 | 1978-06-14 | KEYBOARD TYPE ELECTRONIC MUSICAL INSTRUMENT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13511777A JPS5468220A (en) | 1977-11-10 | 1977-11-10 | Electronic musical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5468220A true JPS5468220A (en) | 1979-06-01 |
Family
ID=15144215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13511777A Pending JPS5468220A (en) | 1977-06-17 | 1977-11-10 | Electronic musical instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5468220A (en) |
-
1977
- 1977-11-10 JP JP13511777A patent/JPS5468220A/en active Pending
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