EP0294201A2
Expired / Lapsed
EP
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Digital sound data storing device
Assignee: Toshiba Corp
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Filing: 1988-06-02
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Granted: —
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Expires: 2008-06-02
Abstract
Abstract This invention relates to a digital sound data storing deivce in which analog signals are obtained from digital sound data. The digital sound data storing device includes a case (1) enclosing a reproduction unit (1a) and an IC card (8) detachably attached to the case (1). A plurality of digital sound data groups are stored at a built-in IC memory (9) of the IC card (8). The sound data groups are obtained, for example, by recording short sentences for practicing foreign language conversation, through a microphone to obtain analog sound signals and digitizing the analog sound signals. When the IC card (8) is attached to the case (1), a sound synthesis circuit (14) enclosed in the case (1) reads out the sound data groups and converts the digital sound data groups to analog signals, which are amplified to be reproduced as sound groups. When any one of push buttons (2a) disposed on the case (1) is depressed to input an identification code corresponding to any sound desired or not desired to be reproduced, data of the identification code is inputted in the built-in memory (9). Based on the data of the identification code, the sound groups are selectively reproduced or selectively excluded from the sound groups to be reproduced.
Inventors
- 👤 Takaharu 837-5 Kita Kawahara Yamamoto
- 👤 Syuzi§Toshiba Narumi Ryo Dormitory Hashiba
- 👤 Toshimitsu Toshiba Meisei Imai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 00:41
CPC Classifications
G; G11; G11C; G11C7/00; G11C7/16; G09; G09B; G09B19/00; G09B19/06; G09B5/00; G09B5/04; G11C2207/00; G11C2207/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
180 words
A digital sound data storing device wherein digital sound data stored at an IC memory (9) is read out and synthesized by a sound synthesis circuit (14) into an analog sound signal which is amplified by an amplifying circuit (15) and reproduced as sound by an output means (7), characterized in that a card-shaped external storage unit (8) incorporating the built-in IC memory (9) storing a plurality of digitized sound data groups corresponding to a plurality of sound groups is detachably attached to a case (1) and that a reproduction unit (1a) enclosed by said case (1) comprises input means (2) for inputting an identification code corresponding to each sound group to be reproduced, internal storage means (13) for storing a reproduction information with respect to each sound data group corresponding to the identification code inputted at said input means (2), and selective reproduction control means (12) for controlling said sound synthesis circuit (14) so that each sound data group indicated by the reproduction information stored at said internal storage means (13) is sequentially synthesized to an analog sound signal.
Claim 2
Dependent Claim
180 words
A digital sound data storing device wherein digital sound data stored at an IC memory (9) is read out and synthesized by a sound synthesis circuit (14) into an analog sound signal which is amplified by an amplifying circuit (15) and reproduced as sound by an output means (7), characterized in that a card-shaped external storage unit (8) incorporating the built-in IC memory (9) storing a plurality of digitized sound data groups corresponding to a plurality of sound groups is detachably attached to a case (1) and that a reproduction unit (1a) enclosed by said case (1) comprises input means (2) for inputting an identification code corresponding to each sound group to be reproduced, internal storage means (13) for storing a reproduction information with respect to each sound data group corresponding to the identification code inputted at said input means (2), and selective reproduction control means (12) for controlling said sound synthesis circuit (14) so that each sound data group indicated by the reproduction information stored at said internal storage means (13) is sequentially synthesized to an analog sound signal.
Claim 3
Dependent Claim
232 words
A digital sound data storing device wherein digital sound data stored at an IC memory (9) is read out and synthesized by a sound synthesis circuit (14) into an analog sound signal which is amplified by an amplifying circuit (15) and reproduced as sound by an output means (7), characterized in that a card-shaped external storage unit (8) incorporating the built-in IC memory (9) storing a plurality of digitized sound data groups corresponding to a plurality of sound groups is detachably attached to a case (1) and that a reproduction unit (1a) enclosed by said case (1) comprises means (2) for inputting an identification code corresponding to each sound group undesired to be reproduced, internal storage means (13) for storing a reproduction information with respect to each sound data group corresponding to the identification code inputted at said input means (2), and selective reproduction control means (12) for controlling said sound synthesis circuit (14) so that the sound data groups stored at the IC memory (9) of said external storage unit (8) are sequentially read out in a continuous reproduction mode and are synthesized to analog sound signal, said selective reproduction control means (12) further controlling said sound synthesis circuit (14) so that in the continuous reproduction modes analog sound signals are synthesized based on the sound data groups except those corresponding to the sound groups set at said input means (2).
Claim 4
Dependent Claim
232 words
A digital sound data storing device wherein digital sound data stored at an IC memory (9) is read out and synthesized by a sound synthesis circuit (14) into an analog sound signal which is amplified by an amplifying circuit (15) and reproduced as sound by an output means (7), characterized in that a card-shaped external storage unit (8) incorporating the built-in IC memory (9) storing a plurality of digitized sound data groups corresponding to a plurality of sound groups is detachably attached to a case (1) and that a reproduction unit (1a) enclosed by said case (1) comprises means (2) for inputting an identification code corresponding to each sound group undesired to be reproduced, internal storage means (13) for storing a reproduction information with respect to each sound data group corresponding to the identification code inputted at said input means (2), and selective reproduction control means (12) for controlling said sound synthesis circuit (14) so that the sound data groups stored at the IC memory (9) of said external storage unit (8) are sequentially read out in a continuous reproduction mode and are synthesized to analog sound signal, said selective reproduction control means (12) further controlling said sound synthesis circuit (14) so that in the continuous reproduction modes analog sound signals are synthesized based on the sound data groups except those corresponding to the sound groups set at said input means (2).
References Cited (Backward Citations)
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