Electronic musical instrument which compares amount of data recorded in internal memory device with storage capacity of external memory device and selectively transfers data thereto
First Claim
1. An electronic musical instrument comprising:
- (a) input keys;
(b) internal memory means;
(c) writing control means for writing operation data corresponding to an operation of said input keys into said internal memory means;
(d) musical tone signal generating means for generating a musical tone signal corresponding to said operation data;
(e) external memory means which can be freely attached to and detached from a main body of said electronic musical instrument; and
(f) transfer control means for comparing an operation data quantity of said operation data stored in said internal memory means with the storage capacity of said external memory means prior to transfer when said operation data stored in said internal memory means are to be transferred to said external memory means, all of said operation data being transferred to said external memory means when said storage capacity is larger than said operation data quantity, a certain part of said operation data being selectively transferred to said external memory means when said storage capacity is smaller than said operation data quantity.
1 Assignment
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Accused Products
Abstract
The electronic musical instrument provides an internal memory for storing performance data corresponding to a musical performance played by using a keyboard thereof and an external memory which can be freely attached to and detached from the main body thereof. The performance data stored in the internal memory can be normally transferred to and stored in the external memory. However, in the case where data quantity of the performance data stored in the internal memory is larger than a storage capacity of the external memory, the performance data stored in the internal memory are controlled to be inhibited from being transferred to the external memory. In this case, an alarm may be generated in order to inform a player of data quantity of the performance data to be overflowed from the external memory when such performance data are to be stored in the external memory.
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Citations
15 Claims
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1. An electronic musical instrument comprising:
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(a) input keys; (b) internal memory means; (c) writing control means for writing operation data corresponding to an operation of said input keys into said internal memory means; (d) musical tone signal generating means for generating a musical tone signal corresponding to said operation data; (e) external memory means which can be freely attached to and detached from a main body of said electronic musical instrument; and (f) transfer control means for comparing an operation data quantity of said operation data stored in said internal memory means with the storage capacity of said external memory means prior to transfer when said operation data stored in said internal memory means are to be transferred to said external memory means, all of said operation data being transferred to said external memory means when said storage capacity is larger than said operation data quantity, a certain part of said operation data being selectively transferred to said external memory means when said storage capacity is smaller than said operation data quantity. - View Dependent Claims (2, 3)
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4. An electronic musical instrument comprising:
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(a) input keys; (b) internal memory means; (c) writing control means for writing operation data corresponding to an operation of said input keys into said internal memory means; (d) musical tone signal generating means for generating a musical tone signal corresponding to said operation data; (e) external memory means which can be freely attached to and detached from a main body of said electronic musical instrument; and (f) alarm means for comparing an operation data quantity of said operation data stored in said internal memory means with the storage capacity of said external memory means when said operation data stored in said internal memory means are to be transferred to said external memory means, said alarm means informing a player of overflow data quantity of said operation data to be overflowed from said external memory means when said storage capacity is smaller than said operation data quantity. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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12. An automatic performance data recording and reproducing apparatus for an electronic musical instrument comprising:
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(a) first memory means for storing performance data; (b) second memory means for recording performance data transferred from said first memory means; and (c) transfer means for transferring said performance data stored in said first memory means to said second memory means based on a computed data quantity of said performance data stored in said first memory means and a detected storage capacity of said second memory means in a recording mode, wherein said transferred performance data are reproduced from said second memory means so that musical tones corresponding to the reproduced performance data are generated in a reproducing mode. - View Dependent Claims (13, 14, 15)
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Specification