Invention Grant
US08625792B2 Methods and apparatus to reduce channel switching time 有权
降低通道切换时间的方法和设备

Methods and apparatus to reduce channel switching time
Abstract:
Methods and apparatus to reduce channel switching time. A method for channel switching includes bundling entitlement control messages (ECMs) to generate bundled ECMs that comprise decryption keys associated with a first content channel and one or more additional content channels, respectively, and transmitting the bundled ECMs with the first content channel. An apparatus for channel switching includes key acquisition logic configured to receive bundled ECMs that comprise decryption keys associated with a first content channel and one or more additional content channels, respectively, processing logic configured to receive a request to render a second content channel that is part of the one or more additional content channels, and decryption logic configured to utilize a selected decryption key obtained from the bundled ECMs to decrypt the second content channel.
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