Music card system
AssigneeOki Electric Industry Co., Ltd.
InventorsIwao Sagara, Koichi Nakagawa, Shintaro Hotta
Life of this patent
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Abstract
A plastic card mounting an IC memory of a credit card size called a music card stores encoded digital music information including tone, musical interval, musical length and loudness of each musical note and pause, and said music information actuates a synthesizer which generates music sound signal. The music card also stores a character code for indicating title of music on said synthesizer. As music note is encoded and stored in a digital form, a small capacity of IC memory is enough for storing a long play music.
Claims10
A music card system comprising:
- an integrated circuit card having a plastic support with an integrated circuit memory together with an integrated circuit micro-computer for controlling the reading of said integrated circuit memory,
- said integrated circuit memory being adapted to store a digital code of music including a music interval, frequency, length, and loudness of each music note, and a length of each music pause,
- a music synthesizer being adapted to receive said integrated circuit card and then read the digital code on said integrated circuit card during stationary electrical contact therewith,
- said music synthesizer generating an electrical signal according to a digital code read out of the card, and
- a speaker for converting said electrical signal to acoustic music sound.
For use in a music card system which includes a music card, a music synthesizer for receiving and reading said card during stationary electrical contact with said card and for generating an electrical signal according to a code stored on said card, and a speaker for converting the electrical signal to acoustic music sound, a music card, comprising:
- an integrated circuit card having a plastic support with an integrated circuit memory together with an integrated circuit micro-computer for controlling the reading of said integrated circuit memory, said integrated circuit memory being adapted to store a digital code of music including a music interval, frequency, length, and loudness of each music note, and a length of each music pause.
Dependencies are inferred from the claim text.