Off-line economies for digital media
First Claim
1. A method comprising:
- authenticating off-line each other between a first user and a second user;
checking off-line whether the second user has a valid account with a service provider;
negotiating freely off-line a price via an off-line sales transaction for a secure off-line transfer of a digital media content from a first media playback device of the first user to a second media playback device of the second user, wherein the off-line sales transaction comprises;
receiving a cryptographically secure purchase request from the buyer;
verifying the cryptographically secure purchase request using a public key of the buyer;
sending a cryptographically secure transaction receipt to the buyer who verifies the cryptographically secure transaction receipt using a public key of the seller; and
receiving a receipt acknowledgement from the buyer, wherein the receiving completes the sales transaction;
securely storing off-line a proof of the off-line sales transaction between the first user and the second user in both of the first media playback device and the second media playback device, wherein the second user can enjoy the digital media content off-line without limitations and without paying the price right after the off-line sales transaction;
providing a first percentage of the price, by the first user, to an owner of a copyright of the digital media content based on the proof stored in either the first media playback device or the second media playback device; and
receiving a second percentage of the price by the first user based on the stored proof,wherein the off-line authentication, the off-line checking, the off-line negotiating, and the secure off-line storing comprising a peer-to-peer link involving no communication link to the world outside of the first media playback device and the second media playback device.
2 Assignments
0 Petitions
Accused Products
Abstract
An off-line economy for digital media. In one implementation, exemplary media devices of buyer and seller participate in the off-line economy by performing secure off-line transfers of digital media content between themselves. The media devices store proof of the off-line sales transactions, so that a percentage of the sale price can be applied to a copyright owner and a percentage of the sale price can be applied to the seller as an incentive. Even resale of pirated media content benefits the copyright holder. The off-line economy opens an effective and inexpensive distribution channel for copyright holders and allows buyers to obtain media content anywhere, at any time, from any participant in the off-line economy without connecting to the Internet. The off-line economy allows copyright holders and media sellers to optimize pricing by market probing.
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Citations
22 Claims
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1. A method comprising:
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authenticating off-line each other between a first user and a second user; checking off-line whether the second user has a valid account with a service provider; negotiating freely off-line a price via an off-line sales transaction for a secure off-line transfer of a digital media content from a first media playback device of the first user to a second media playback device of the second user, wherein the off-line sales transaction comprises; receiving a cryptographically secure purchase request from the buyer; verifying the cryptographically secure purchase request using a public key of the buyer; sending a cryptographically secure transaction receipt to the buyer who verifies the cryptographically secure transaction receipt using a public key of the seller; and receiving a receipt acknowledgement from the buyer, wherein the receiving completes the sales transaction; securely storing off-line a proof of the off-line sales transaction between the first user and the second user in both of the first media playback device and the second media playback device, wherein the second user can enjoy the digital media content off-line without limitations and without paying the price right after the off-line sales transaction; providing a first percentage of the price, by the first user, to an owner of a copyright of the digital media content based on the proof stored in either the first media playback device or the second media playback device; and receiving a second percentage of the price by the first user based on the stored proof, wherein the off-line authentication, the off-line checking, the off-line negotiating, and the secure off-line storing comprising a peer-to-peer link involving no communication link to the world outside of the first media playback device and the second media playback device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A media player comprising:
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a storage medium configured to store digital media content for a seller in the media player; an off-line communication engine configured to communicate off-line with an other media player used by a buyer; an off-line media distribution engine configured to negotiate sale prices and securely buying and selling a media content off-line, wherein a first percentage of each sale price is applied to a copyright holder associated with the media content being sold and a second percentage of each sale price is applied to the seller of the media content; an authenticator configured to provide off-line secure transactions between the media player and the other media player; an account verifier configured to check off-line whether the buyer has a valid account with a service provider; and a transaction history storage configured to securely store off-line a proof of an off-line sales transaction between the seller and the buyer in both the media player and the other media player, wherein the buyer can enjoy the digital media content off-line without limitations and without paying the sale price right after the off-line sales transaction, wherein the off-line sales transaction comprises; receiving a cryptographically secure purchase request from the other media player; verifying the cryptographically secure purchase request using a public key of the buyer; sending a cryptographically secure transaction receipt to the other media player which verifies the cryptographically secure transaction receipt using a public key of the seller; and receiving a receipt acknowledgement from the other media player, wherein the receiving completes the sales transaction, wherein the off-line communication engine, the off-line media distribution engine, the authenticator, and the account verifier are further configured to interact with the other media player of the buyer via a peer-to-peer link involving no communication link to the world outside of the media player of the seller and the other media player of the buyer. - View Dependent Claims (19, 20)
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21. A method, comprising:
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authenticating a buyer by a seller using a buyer'"'"'s public key; facilitating the buyer to authenticate the seller using a seller'"'"'s public key; checking whether the buyer has a valid account with a service provider; negotiating freely a price via an off-line sales transaction for securely transferring a digital media content from a seller'"'"'s media player to a buyer'"'"'s media player, wherein the off-line sales transaction comprises; receiving a cryptographically secure purchase request from the buyer; verifying the cryptographically secure purchase request using the buyer'"'"'s public key; sending a cryptographically secure transaction receipt to the buyer who verifies the cryptographically secure transaction receipt using the seller'"'"'s public key; and receiving a receipt acknowledgement from the buyer, wherein the receiving completes the sales transaction; securely storing a proof of the off-line sales transaction between the buyer and the seller in both of the seller'"'"'s media player and the buyer'"'"'s media player, wherein the second user can enjoy the digital media content off-line without limitations and without paying the price right after the off-line sales transaction, and the authenticating, the facilitating, the checking, the negotiating, and the securely storing are done off-line without connecting to an internet or a communication link outside a seller and a buyer; and providing the proof stored in either the seller'"'"'s media player or the buyer'"'"'s media player to the service provider when either the seller or the buyer is online, so that a first percentage of the price is provided to an owner of a copyright of the digital media content, and a second percentage of the price is provided to the seller, wherein what is provided to the seller is always less than the price, and the service provider acts as a clearinghouse for monetary accounts of the seller, the buyer, and the owner of the copyright of the digital media content, and credits or debits each account accordingly. - View Dependent Claims (22)
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Specification