Portable music player with pay per play usage and method for purchase of credits for usage

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United States of America Patent

PATENT NO 6974076
SERIAL NO

09691409

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A portable content playback device that includes the ability to accept a media with electronic playback credits, i.e. a smart card, that is pre-loaded with credits. Alternatively, the device may have internal memory that is capable of storing electronic credits. Consequently, when a user plays the content that is protected so that it may only be played only in a 'pay per play' application credits are deducted from the media that manages the amount of electronic credits available to the user.

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Patent Owner(s)

  • SONY CORPORATION;SONY ELECTRONICS INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Siegel, Jaime A Ridgewood, NJ 8 352

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