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A framework for energy-efficient operation of set-top boxes

This paper introduces a framework for the efficient operation of energy-saving set-top boxes, with consideration for updates of applications and EPG information. The energy-saving set-top box supports a deep-sleep passive standby state in which almost all functional modules are stopped and turned off except those required for a fast wake-up, so that the power consumption level goes down to less than 1 watt. However, if the set-top box stays in the deep-sleep passive standby state, applications or EPG cannot be updated. To overcome the shortcomings, this paper proposes a mechanism that remotely wakes up the set-top box using wake-on-LAN capabilities and makes it go into an active standby state for a moment so that applications or EPG can be updated.