On Thursdays the USPTO publishes new pending patent applications. Both of today's Spotlight Applications concern various aspects of conditional access systems commonly found in cable and satellite broadcast systems. Assigned to DirecTV, the first application discloses techniques for securely requesting download of content to a user device from another device. Assigned to LG Electronics (KR), the second application discloses a digital broadcasting system and method of processing data.
20090100182, "Method and system for securely requesting download of content to a user device from another device," assigned to DirecTV.
Abstract
A method and system includes a first web service client generating a first message with first security portion and communicating the first message and first security portion to a second web service client. The second web service client generates a response to the first message at the second web service client when the first security portion is valid and communicates the response to the first web service. The second web service generates a user device request at the second web service when the first security portion is valid and communicates the user device request to a conditional access management center. The conditional access system generates a control word and communicates the control word to the user device. The conditional access system generates a status signal and communicates the status signal to the second web services client when a control word is sent to the user device. The second web service device generates a formatted response message from the first web services client to the second web services client in response to the status signal.
20090080572, "Digital broadcasting system and method of processing data in digital broadcasting system," assigned to LG Electronics (KR).
Abstract
A digital broadcast receiver and a control method thereof are disclosed. The control method includes receiving a broadcast signal into which mobile service data and main service data are multiplexed, extracting TPC signaling information and FIC signaling information from a data group in the received mobile service data, acquiring a program table describing virtual channel information and a service of an ensemble, using the extracted FIC signaling information, the ensemble being a virtual channel group of the received mobile service data, detecting a conditional access descriptor indicating whether the mobile service data was encrypted, using the acquired program table, and controlling such that the encrypted mobile service data is decrypted, using information of the detected conditional access descriptor.
Abstract
A method and system includes a first web service client generating a first message with first security portion and communicating the first message and first security portion to a second web service client. The second web service client generates a response to the first message at the second web service client when the first security portion is valid and communicates the response to the first web service. The second web service generates a user device request at the second web service when the first security portion is valid and communicates the user device request to a conditional access management center. The conditional access system generates a control word and communicates the control word to the user device. The conditional access system generates a status signal and communicates the status signal to the second web services client when a control word is sent to the user device. The second web service device generates a formatted response message from the first web services client to the second web services client in response to the status signal.
20090080572, "Digital broadcasting system and method of processing data in digital broadcasting system," assigned to LG Electronics (KR).
Abstract
A digital broadcast receiver and a control method thereof are disclosed. The control method includes receiving a broadcast signal into which mobile service data and main service data are multiplexed, extracting TPC signaling information and FIC signaling information from a data group in the received mobile service data, acquiring a program table describing virtual channel information and a service of an ensemble, using the extracted FIC signaling information, the ensemble being a virtual channel group of the received mobile service data, detecting a conditional access descriptor indicating whether the mobile service data was encrypted, using the acquired program table, and controlling such that the encrypted mobile service data is decrypted, using information of the detected conditional access descriptor.
