Electronic musical instrument with any key play mode

• US 5,085,117 A
• Filed: 10/04/1990
• Issued: 02/04/1992
• Est. Priority Date: 10/06/1989
• Status: Expired due to Term

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: Matsuyama, Shigeru, Akutsu, Takashi, Morokuma, Hiroshi
• Primary Examiner(s): Shoop, Jr., William M.
• Assistant Examiner(s): Kim, Helen
• Application Number:
  US07/592,556
• Time in Patent Office: 488 Days
• Field of Search: 84/DIG. 2, 84/618, 84/615, 84/626, 84/609, 84/649, 84/653, 84/656, 84/658, 84/678, 84/684, 84/DIG. 7
• US Class Current: 84/615
• CPC Class Codes: G10H 1/18 Selecting circuits
• CPC Class Codes: G10H 1/26 for automatically producing a series of tones
• CPC Class Codes: Y10S 84/02 Preference networks
• CPC Class Codes: Y10S 84/07 Electric key switch structure

Abstract

In an electronic musical instrument with an ANY KEY mode which regards keys as a single one-key, an ON event in a non-operation state is valid, and a one-key play operation is advanced by one tone.

Claims

1. An electronic musical instrument comprising:

a plurality of pitch designation means divided into a plurality of group designation means, said pitch designation means being operable to designate pitches;

pitch data storage means for storing pitch data indicating pitches of melody tones constituting a melody;

readout means for sequentially reading out the pitch data from said pitch data storage means;

tone generation processing means for executing tone generation processing on the basis of the pitch data read out by said readout means; and

control means for enabling said tone generation processing means to execute tone generation processing responsive to both of;

operation of at least one of said pitch designation means; and

when none of said pitch generation means in a group designation means including previously operation pitch designation means is subsequently operated; and

said control means disabling said tone generation processing means from executing the tone generation processing when at least one pitch designation means in a group designation means including any previously operation pitch designation means is subsequently operated.

2. An instrument according to claim 1, wherein said plurality of pitch designation comprises a plurality of keys.

3. An electronic musical instrument comprising:

a plurality of pitch designation means respectively operable to designate pitches;

pitch data storage means for storing pitch data indicating pitches of melody tones constituting a melody;

readout means for sequentially reading out the pitch data from said pitch data storage means; and

tone generation processing means for executing tone generation processing on the basis of the pitch data read out by said readout means; and

control means for enabling said tone generation processing means to execute tone generation processing responsive to at least one of;

operation of at least one of said pitch designation means when none of the pitch designation means was previously operated; and

the operated pitch designation means changing from a number in a first range to a number in a second range, a lowest value number in the second range being greater than a highest value number in the first range; and

said control means disabling said tone generation processing means from executing the tone generation except when enabled.

4. An instrument according to claim 3, wherein said plurality of pitch designation comprises a plurality of keys.

5. An instrument according to claim 3, for use by an operator having two hands, wherein the first range comprises a first number of pitch designation means which can be operated simultaneously by one of said hands of said operator;

and the second range comprises a second number larger than the first number of pitch designation means which can be operated simultaneously by said two hands of said operator.

6. An instrument according to claim 5, wherein said plurality of pitch designation means comprises a plurality of keys.

7. An electronic musical instrument comprising:

a plurality of pitch designation means, each of which is assigned to a pitch, for designating pitches;

pitch data storage means for storing pitch data indicating pitches of melody tones constituting a melody;

readout means for sequentially reading out the pitch data from said pitch data storage means; and

tone generation processing means for executing tone generation processing on the basis of the pitch data read out by said readout means; and

control means for enabling said tone generation processing means to execute tone generation processing responsive to at least one of;

at least one of said pitch designation means being operated at a time when no pitch designation means has been previously operated; and

one of said pitch designation means being operated whose pitch differs from that of a pitch designation means which has previously been operated by not less than a predetermined value; and

said control means disabling said tone-generation processing means from executing tone generation processing except when enabled.

8. An instrument according to claim 7, wherein said plurality of pitch designation means comprises a plurality of keys.

9. An electronic musical instrument comprising:

a plurality of pitch designation means operable to designate pitches;

pitch data storage means for storing pitch data indicating pitches of melody tones constituting a melody;

readout means for sequentially reading out the pitch data from said pitch data storage means;

tone generation processing means for executing tone generation processing on the basis of the pitch data read out by said readout means; and

control means for enabling said tone generation processing means to execute tone generation processing only when at least one of said pitch generation means is operated when none of the other pitch designation means is presently operated, and for disabling said tone generation processing means from executing the tone generation processing when at least one of said pitch designation means is operated when at least one pitch designation means is presently operated.