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1539results about "Payment schemes/models" patented technology

Method and apparatus for making secure electronic payments

In accordance with the present invention, consumers and merchants use computing devices connected to a network, such as the Internet, through wired and wireless means, wherein the consumer connects to a clearing server device to purchase or retrieve previously purchased token, the consumer then connects to the merchant's computer or website to attain price quotes of goods and services, selects the goods and / or services to be purchased, and then communicates a request for purchase to the merchant. The merchant then communicates a request for an update key to the clearing server. The update key is used as an authorization to modify the value of the token. To debit the customer the decrement key is requested and to credit the customer an increment key is asked for. An overwrite key is another type of update key. Together with the overwrite key a replacement token is provided to the merchant who in turn forwards the new token to the customer. As an aspect of the invention, if the token was not previously used, the clearing server simply issues the update key. If, however, it is determined that the token was used, the amount paid by the consumer to a previous merchant is determined the token adjusted and the overwrite key together with the new token is returned to the merchant. The merchant then forwards the purchased merchandise, the update key, and possibly a new token to the consumer.
Owner:AMPACASH CORP

Joint cloud computing environment value exchange-oriented cross-chain communication method

ActiveCN108009811AAvoid the problem of poor traceabilityAvoid problems with high exposure risksTransmissionPayment schemes/modelsCommunications systemTransaction data
The invention discloses a joint cloud computing environment value exchange-oriented cross-chain communication method, and aims to ensure the security, reliability and high efficiency of a value exchange process. According to the technical scheme, a cross-chain communication system consisting of a cross-chain communication module, a node management module, a verification module and an accounting module is installed in each user node on each block chain; a midchain is established; a route node is selected from the midchain; value transfer and communication between chains are finished by the route node; the cross-chain communication module of a sender constructs a fund pool for the sender, a receiver and the route node, and performs fund transfer according to a fund transfer scheme; the verification module of the receiver verifies the effectiveness and availability of funds of the sender by adopting a smart contract; the accounting module of the receiver broadcasts a transaction result; and the sender, the receiver and the MidChain generate new blocks for storing transaction data. By adopting the method, the security, reliability and high efficiency of the value exchange process can be ensured; and seamless cross-chain communication between the chains is realized.
Owner:NAT UNIV OF DEFENSE TECH +1
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