EP0137758A2
Expired / Lapsed
EP
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Music reproduction system including a music storage card
Assignee: Oki Electric Industry Co Ltd
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Filing: 1984-09-18
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Granted: —
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Expires: 2004-09-18
Abstract
Abstract A plastics card (5) roughly of credit card size carries an integrated circuit memory (6). The memory stores digitally- encoded music information including the tone, the musical pitch, the length and the loudness of each note, and the length of each rest. The music information when read out actuates a synthesizer (2) which generates a corresponding music sound signal. The signal is fed to an amplifier (3) and thence to a loudspeaker (4). The card also stores a character code for indicating the title of the music on a display on the synthesizer. As each music note is encoded and stored in digital form, only a small IC memory capacity is required for storing a long musical work.
Inventors
- 👤 Iwao Sagara
- 👤 Koichi Nakagawa
- 👤 Shintaro Hotta
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 17:21
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/18; G10H1/26; G10H1/0033; Y; Y10; Y10S; Y10S84/00; Y10S84/01
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
70 words
A music reproduction system, comprising a card (1) carrying an integrated circuit microcomputer (14) and an integrated circuit member (15) for storing digitally a control code designating a musical instrument and music codes relating to the score of the music; a music synthesizer (2) for generating electrical signals according to the digital codes read out of the memory; and a transducer (4) for converting the electrical signals into music sounds.
Claim 2
Dependent Claim
70 words
A music reproduction system, comprising a card (1) carrying an integrated circuit microcomputer (14) and an integrated circuit member (15) for storing digitally a control code designating a musical instrument and music codes relating to the score of the music; a music synthesizer (2) for generating electrical signals according to the digital codes read out of the memory; and a transducer (4) for converting the electrical signals into music sounds.
Claim 3
Dependent Claim
45 words
A system according to claim 1, wherein the card (1) stores data relating to a plurality of musical works; and the synthesizer (40) has a keyboard (43) which can be operated for designating a desired one of the musical works which is to be played.
Claim 4
Dependent Claim
52 words
A system according to claim 1 or claim 2, wherein the integrated circuit memory (15) also stores a character code indicating the title of the music; and wherein the synthesizer (40) has a display (45) for indicating the title of the music according to the character code read out from the memory.
Claim 5
Independent Claim
37 words
A system according to any preceding claim, wherein the card (1) stores data relating to a plurality of instruments for each musical work, and the synthesizer (46) actuates a plurality of speakers (47-50) corresponding to the instruments.
Claim 6
Independent Claim
21 words
A system according to any preceding claim, wherein the size of the card (1) is approximately 54 mm x 86 mm.
Claim 7
Independent Claim
36 words
A system according to any preceding claim, wherein the card stores a digital code relating to the pitch, the length and the loudness of each music note, and the length of each pause in the music.
Claim 8
Independent Claim
16 words
A system according to any preceding claim, wherein each music note is encoded in 16 bits.
Claim 9
Independent Claim
42 words
A system according to any preceding claim, wherein an end code designating the finish of the music is stored in the card (1), and the end code finishes the playing of that music and initiates the synthesizer for playing the next music.
Claim 10
Dependent Claim
14 words
A system according to claim 12, wherein the keyboard (43) has ten numeric keys.
References Cited (Backward Citations)
No citation records indexed.
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