Media Playback Processor Wake-Up Using Network Command Anticipation
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Solution Overview
Problem
Conventional media playback devices maintain full power to electronic components even when idle, leading to significant power consumption without noticeable lag, which is inefficient and wasteful.
Innovation Solution
Implement power management techniques that put electronic components into sleep states when commands are unlikely and wake them up when necessary, using processors with multiple power states and network interface components to anticipate user commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If electronic components maintain full power even when idle, then response speed remains fast, but power consumption increases significantly
Solution Approach 1:
The system performs preliminary actions by having network interface components continuously monitor for commands while processors remain in sleep state. When a command is detected, the processor is awakened in advance to process it, rather than maintaining continuous full power operation. This resolves the contradiction by preparing the system for potential commands without sustained high power consumption.
Solution Approach 2:
The system dynamically adjusts processor power states based on command likelihood. Processors transition between sleep state and awake state depending on whether commands are detected by network interface components. This dynamic adaptation resolves the contradiction by matching power consumption to actual operational needs rather than maintaining static full power.
2Loss of energy
If processors are put to sleep to save power, then power consumption decreases, but command execution lag increases
Solution Approach 1:
Network interface components continuously monitor for commands while processors sleep. When a command is detected, the processor is awakened in advance to process it, minimizing actual execution lag. This preliminary detection and awakening mechanism resolves the contradiction by preparing the processor before the command needs execution.
Solution Approach 2:
Network interface components act as intermediaries between the external command source and the sleeping processor. They monitor for commands, determine likelihood of execution, and trigger processor awakening only when necessary. This intermediary layer resolves the contradiction by filtering commands and managing processor wake-up timing to balance energy efficiency with response speed.
3Speed
If network interface components continuously monitor for commands, then command detection speed improves, but power consumption increases
Solution Approach 1:
The system applies partial monitoring action by having network interface components continuously monitor for commands while processors remain in low-power sleep state. Full processing power is not continuously active, only partial monitoring function operates continuously. This resolves the contradiction by applying just enough monitoring action to detect commands without full system activation.
Data Source
AI summary
According to at least one aspect, power management techniques are disclosed that may reduce the power consumption of devices, such as those devices in media playback systems, without introducing a noticeable lag between a user issuing a command and the device processing the command. In some embodiments, the device may put to sleep (including turn off) electronic components that are only used for specific commands. In these embodiments, the devices may identify periods where the specific commands are likely to be invoked and, in response to identifying such a period, wake-up the electronic components. As a result, the power consumption of the device may be substantially reduced because various electronic components may be put to sleep instead of remaining idle in an awake state.