Patents by Inventor Tuan Quoc Dao
Tuan Quoc Dao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12166888Abstract: Systems and methods for encrypting data are described herein. For example, the system may receive, from an application associated with a provider system, a request for a delivery token. The request may include an address and an identifier of a distribution system. The system may determine a distributor key for decrypting delivery tokens for the distribution system. The system may also identify an encryption key for encrypts delivery tokens, where the encryption key corresponds to the distributor key. The system may generate the delivery token, including the address, using the encryption key. The system may then transmit the delivery token to the application associated with the provider system.Type: GrantFiled: May 10, 2024Date of Patent: December 10, 2024Assignee: Citibank, N.A.Inventors: Tuan Quoc Dao, Mayank Dinesh Shah
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Publication number: 20160275393Abstract: The present disclosure is directed to a system and method for using magnetically coupled antennas to enhance receptivity and/or reading range of radio frequency (RF) transaction devices. In some implementations, a method for boosting RF signals includes wirelessly receiving an RF signal from a transaction terminal at a passive antenna. The passive antenna is magnetically coupled to the antenna of a transaction card. The transaction card is inserted in a mobile host device and configured to execute a payment application using user credentials in response to at least a transaction request and transmits at least one transaction response to the transaction terminal based, at least in part, on the executed transaction application and using the antenna either standalone or through the coupled antenna configuration. The RF signal is transmitted to the transaction card using the inductive coupling with the terminal.Type: ApplicationFiled: March 23, 2016Publication date: September 22, 2016Inventors: Deepak Jain, Tuan Quoc Dao
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Patent number: 9418362Abstract: The present disclosure is directed to a system and method for amplifying Radio Frequency (RF) signals. In some implementations, a system includes a first interface, a second interface, secure memory, a user-interface module, a processing module, and am amplification module. The first interface connects to a microSD slot of a mobile host device. The second interface includes an internal antenna for wirelessly communicating with retail terminals. The secure memory stores user credentials and a payment application used to execute financial transactions with the retail terminals. The processing module executes the payment application using the user credentials in response to at least a transaction request received by the RF module and transmits at least one transaction response to the retail terminal based, at least in part, on the executed payment application. The amplification module connected to a lead of the antenna and is configured to amplify at least received RF signals.Type: GrantFiled: November 10, 2014Date of Patent: August 16, 2016Assignee: DeviceFidelity, Inc.Inventors: Deepak Jain, Tuan Quoc Dao
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Publication number: 20160148188Abstract: The present disclosure is directed to a system and method for switching between internal and external antennas. In some implementations, a system includes an antenna, a connector, and a housing. The antenna is configured to communicate wirelessly transactions with transaction terminals. The connector is connected to the antenna and configured to connect a transaction card to the antenna in response to at least insertion in the housing. The housing enclosing at least a portion of the antenna and at least a portion of the connector and including one or more elements that form an opening for receiving the transaction card. In addition, the housing is substantially rectangular and includes a first portion with a first thickness and a second portion with a second thickness different from the first thickness and at least the thickness of the transaction card.Type: ApplicationFiled: November 23, 2015Publication date: May 26, 2016Inventors: Deepak Jain, Tuan Quoc Dao
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Patent number: 9311766Abstract: The present disclosure is directed to a system and method for wirelessly communicating Radio Frequency (RF) signals. In some implementations, a microSD payment system includes an antenna element and a card element. The antenna element affixes to a surface of a mobile device and includes antenna for wireless communicating RF signals with retail terminals and a connection to a microSD card element. The card element includes a shape and dimensions approximately equal to a standard microSD card and wirelessly executes transactions with the retail terminals using the antenna of the antenna element.Type: GrantFiled: November 17, 2008Date of Patent: April 12, 2016Assignee: DeviceFidelity, Inc.Inventors: Deepak Jain, Tuan Quoc Dao, Amitaabh Malhotra
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Publication number: 20160098627Abstract: The present disclosure is directed to a system and method for switching between internal and external antennas. In some implementations, a system includes an antenna, a connector, and a housing. The antenna is configured to communicate wirelessly transactions with transaction terminals. The connector is connected to the antenna and configured to connect a transaction card to the antenna in response to at least insertion in the housing. The housing enclosing at least a portion of the antenna and at least a portion of the connector and including one or more elements that form an opening for receiving the transaction card. In addition, the housing is substantially rectangular and includes a first portion with a first thickness and a second portion with a second thickness different from the first thickness and at least the thickness of the transaction card.Type: ApplicationFiled: October 5, 2015Publication date: April 7, 2016Inventors: Deepak Jain, Tuan Quoc Dao
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Patent number: 9304555Abstract: The present disclosure is directed to a system and method for using magnetically coupled antennas to enhance receptivity and/or reading range of radio frequency (RF) transaction devices. In some implementations, a method for boosting RF signals includes wirelessly receiving an RF signal from a transaction terminal at a passive antenna. The passive antenna is magnetically coupled to the antenna of a transaction card. The transaction card is inserted in a mobile host device and configured to execute a payment application using user credentials in response to at least a transaction request and transmits at least one transaction response to the transaction terminal based, at least in part, on the executed transaction application and using the antenna either standalone or through the coupled antenna configuration. The RF signal is transmitted to the transaction card using the inductive coupling with the terminal.Type: GrantFiled: May 7, 2010Date of Patent: April 5, 2016Assignee: DeviceFidelity, Inc.Inventors: Deepak Jain, Tuan Quoc Dao
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Patent number: 9195931Abstract: The present disclosure is directed to a system and method for switching between internal and external antennas. In some implementations, a system includes an antenna, a connector, and a housing. The antenna is configured to communicate wirelessly transactions with transaction terminals. The connector is connected to the antenna and configured to connect a transaction card to the antenna in response to at least insertion in the housing. The housing enclosing at least a portion of the antenna and at least a portion of the connector and including one or more elements that form an opening for receiving the transaction card. In addition, the housing is substantially rectangular and includes a first portion with a first thickness and a second portion with a second thickness different from the first thickness and at least the thickness of the transaction card.Type: GrantFiled: November 22, 2011Date of Patent: November 24, 2015Assignee: DeviceFidelity, Inc.Inventors: Deepak Jain, Tuan Quoc Dao
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Patent number: 9152911Abstract: The present disclosure is directed to a system and method for switching between internal and external antennas. In some implementations, a system includes an antenna, a connector, and a housing. The antenna is configured to communicate wirelessly transactions with transaction terminals. The connector is connected to the antenna and configured to connect a transaction card to the antenna in response to at least insertion in the housing. The housing enclosing at least a portion of the antenna and at least a portion of the connector and including one or more elements that form an opening for receiving the transaction card. In addition, the housing is substantially rectangular and includes a first portion with a first thickness and a second portion with a second thickness different from the first thickness and at least the thickness of the transaction card.Type: GrantFiled: November 29, 2011Date of Patent: October 6, 2015Assignee: DeviceFidelity, Inc.Inventors: Deepak Jain, Tuan Quoc Dao
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Publication number: 20150066760Abstract: The present disclosure is directed to a system and method for amplifying Radio Frequency (RF) signals. In some implementations, a system includes a first interface, a second interface, secure memory, a user-interface module, a processing module, and am amplification module. The first interface connects to a microSD slot of a mobile host device. The second interface includes an internal antenna for wirelessly communicating with retail terminals. The secure memory stores user credentials and a payment application used to execute financial transactions with the retail terminals. The processing module executes the payment application using the user credentials in response to at least a transaction request received by the RF module and transmits at least one transaction response to the retail terminal based, at least in part, on the executed payment application. The amplification module connected to a lead of the antenna and is configured to amplify at least received RF signals.Type: ApplicationFiled: November 10, 2014Publication date: March 5, 2015Inventors: Deepak Jain, Tuan Quoc Dao
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Patent number: 8925827Abstract: The present disclosure is directed to a system and method for amplifying Radio Frequency (RF) signals. In some implementations, a system includes a first interface, a second interface, secure memory, a user-interface module, a processing module, and am amplification module. The first interface connects to a microSD slot of a mobile host device. The second interface includes an internal antenna for wirelessly communicating with retail terminals. The secure memory stores user credentials and a payment application used to execute financial transactions with the retail terminals. The processing module executes the payment application using the user credentials in response to at least a transaction request received by the RF module and transmits at least one transaction response to the retail terminal based, at least in part, on the executed payment application. The amplification module connected to a lead of the antenna and is configured to amplify at least received RF signals.Type: GrantFiled: October 16, 2009Date of Patent: January 6, 2015Assignee: DeviceFidelity, Inc.Inventors: Deepak Jain, Tuan Quoc Dao
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Patent number: 8915447Abstract: The present disclosure is directed to a system and method for amplifying Radio Frequency (RF) signals. In some implementations, a system includes a first interface, a second interface, secure memory, a user-interface module, a processing module, and am amplification module. The first interface connects to a microSD slot of a mobile host device. The second interface includes an internal antenna for wirelessly communicating with retail terminals. The secure memory stores user credentials and a payment application used to execute financial transactions with the retail terminals. The processing module executes the payment application using the user credentials in response to at least a transaction request received by the RF module and transmits at least one transaction response to the retail terminal based, at least in part, on the executed payment application. The amplification module connected to a lead of the antenna and is configured to amplify at least received RF signals.Type: GrantFiled: September 30, 2009Date of Patent: December 23, 2014Assignee: DeviceFidelity, Inc.Inventors: Deepak Jain, Tuan Quoc Dao
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Publication number: 20140129356Abstract: The present disclosure is directed to a system and method for updating mobile devices with additional elements. In some implementations, a cover for a mobile device includes side surfaces, a rear surface, a physical interface, and a circuit. The side surfaces and the rear surface are configured to be adjacent at least a portion one or more side surfaces of the mobile phone. The side surfaces and the rear surface form an opening that receives at least a portion of the mobile device. A first portion of at least one of the surfaces includes a connector for connecting to a port of the mobile phone. The physical interface includes in at least one of the surfaces that receives a memory device external to the mobile device. The circuit connects the physical interface to the connector.Type: ApplicationFiled: September 27, 2013Publication date: May 8, 2014Applicant: DeviceFidelity, Inc.Inventors: Deepak Jain, Tuan Quoc Dao
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Patent number: 8548540Abstract: The present disclosure is directed to a system and method for updating mobile devices with additional elements. In some implementations, a cover for a mobile device includes side surfaces, a rear surface, a physical interface, and a circuit. The side surfaces and the rear surface are configured to be adjacent at least a portion one or more side surfaces of the mobile phone. The side surfaces and the rear surface form an opening that receives at least a portion of the mobile device. A first portion of at least one of the surfaces includes a connector for connecting to a port of the mobile phone. The physical interface includes in at least one of the surfaces that receives a memory device external to the mobile device. The circuit connects the physical interface to the connector.Type: GrantFiled: April 1, 2011Date of Patent: October 1, 2013Assignee: DeviceFidelity, Inc.Inventors: Deepak Jain, Tuan Quoc Dao
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Patent number: 8380259Abstract: The present disclosure is directed to a system and method for wirelessly accessing broadband services using intelligent covers. In some implementations, a cover for a consumer device includes side surfaces, a rear surface, a physical interface, a circuit, and a broadband service card. The side surfaces and a rear surface form an opening that receives at least a portion of a consumer device. A first portion of at least one of the surfaces includes a connector for connecting to a port of the consumer device. The circuit connects the physical interface to the connector. The broadband service card connected to the physical interface and accesses a service foreign through the wireless broadband network independent of the consumer device.Type: GrantFiled: May 25, 2012Date of Patent: February 19, 2013Assignee: DeviceFidelity, Inc.Inventors: Deepak Jain, Tuan Quoc Dao
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Publication number: 20120267437Abstract: The present disclosure is directed to a system and method for amplifying Radio Frequency (RF) signals. In some implementations, a system includes a first interface, a second interface, secure memory, a user-interface module, a processing module, and am amplification module. The first interface connects to a microSD slot of a mobile host device. The second interface includes an internal antenna for wirelessly communicating with retail terminals. The secure memory stores user credentials and a payment application used to execute financial transactions with the retail terminals. The processing module executes the payment application using the user credentials in response to at least a transaction request received by the RF module and transmits at least one transaction response to the retail terminal based, at least in part, on the executed payment application. The amplification module connected to a lead of the antenna and is configured to amplify at least received RF signals.Type: ApplicationFiled: October 16, 2009Publication date: October 25, 2012Inventors: Deepak Jain, Tuan Quoc Dao
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Publication number: 20120231766Abstract: The present disclosure is directed to a system and method for wirelessly accessing broadband services using intelligent covers. In some implementations, a cover for a consumer device includes side surfaces, a rear surface, a physical interface, a circuit, and a broadband service card. The side surfaces and a rear surface form an opening that receives at least a portion of a consumer device. A first portion of at least one of the surfaces includes a connector for connecting to a port of the consumer device. The circuit connects the physical interface to the connector. The broadband service card connected to the physical interface and accesses a service foreign through the wireless broadband network independent of the consumer device.Type: ApplicationFiled: May 25, 2012Publication date: September 13, 2012Inventors: Deepak Jain, Tuan Quoc Dao
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Patent number: 8190221Abstract: The present disclosure is directed to a system and method for wirelessly accessing broadband services using intelligent covers. In some implementations, a cover for a consumer device includes side surfaces, a rear surface, a physical interface, a circuit, and a broadband service card. The side surfaces and a rear surface form an opening that receives at least a portion of a consumer device. A first portion of at least one of the surfaces includes a connector for connecting to a port of the consumer device. The circuit connects the physical interface to the connector. The broadband service card connected to the physical interface and accesses a service foreign through the wireless broadband network independent of the consumer device.Type: GrantFiled: September 12, 2008Date of Patent: May 29, 2012Assignee: DeviceFidelity, Inc.Inventors: Deepak Jain, Tuan Quoc Dao
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Publication number: 20120074231Abstract: The present disclosure is directed to a system and method for switching between internal and external antennas. In some implementations, a system includes an antenna, a connector, and a housing. The antenna is configured to communicate wirelessly transactions with transaction terminals. The connector is connected to the antenna and configured to connect a transaction card to the antenna in response to at least insertion in the housing. The housing enclosing at least a portion of the antenna and at least a portion of the connector and including one or more elements that form an opening for receiving the transaction card. In addition, the housing is substantially rectangular and includes a first portion with a first thickness and a second portion with a second thickness different from the first thickness and at least the thickness of the transaction card.Type: ApplicationFiled: November 29, 2011Publication date: March 29, 2012Inventors: Deepak Jain, Tuan Quoc Dao
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Publication number: 20120061466Abstract: The present disclosure is directed to a system and method for switching between internal and external antennas. In some implementations, a system includes an antenna, a connector, and a housing. The antenna is configured to communicate wirelessly transactions with transaction terminals. The connector is connected to the antenna and configured to connect a transaction card to the antenna in response to at least insertion in the housing. The housing enclosing at least a portion of the antenna and at least a portion of the connector and including one or more elements that form an opening for receiving the transaction card. In addition, the housing is substantially rectangular and includes a first portion with a first thickness and a second portion with a second thickness different from the first thickness and at least the thickness of the transaction card.Type: ApplicationFiled: November 22, 2011Publication date: March 15, 2012Inventors: Deepak Jain, Tuan Quoc Dao