Physical Layer Control Units for Standby Power Reduction
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Solution Overview
Problem
Conventional display apparatuses face challenges in efficiently reducing power consumption during the standby state due to the continuous operation of physical layer circuit units, which consume power even when not actively used.
Innovation Solution
The implementation of multiple physical layer control units that communicate with each other, where one unit generates a clock signal using a resonator and another receives it, allowing the logical layer control unit to be powered down during standby, reducing unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the physical layer circuit units are kept in the ON state to maintain communication functionality, then the reliability of communication is improved, but the power consumption during standby state increases
Solution Approach 1:
The physical layer circuit units are divided into multiple segments (first physical layer circuit unit and second physical layer circuit unit). During standby state, only the first physical layer circuit unit remains in the ON state while the second is switched to standby state. This segmentation allows the system to maintain minimal communication functionality while reducing overall power consumption.
Solution Approach 2:
The control unit periodically switches the second physical layer circuit unit between ON and standby states based on communication activity. When communication is not active, the circuit unit is switched to standby state to reduce power consumption. When communication is needed, it is switched back to ON state, creating a periodic action pattern that balances functionality and energy efficiency.
2Productivity
If multiple physical layer circuit units are operated simultaneously to handle communication tasks, then the communication capacity is improved, but the power consumption increases
Solution Approach 1:
The system dynamically adjusts the operational state of physical layer circuit units based on real-time communication needs. The control unit monitors communication activity and dynamically switches the second physical layer circuit unit between ON and standby states, making the system adaptable to varying communication demands while optimizing power consumption.
Solution Approach 2:
Different physical layer circuit units are assigned different operational qualities based on their current need. The first physical layer circuit unit maintains a consistently ON state to ensure baseline communication functionality, while the second physical layer circuit unit alternates between ON and standby states. This local quality differentiation allows the system to optimize power consumption at the component level while maintaining overall communication capacity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration efficiently reduces power consumption in the standby state by only activating necessary components, thereby minimizing energy usage without compromising functionality.
Implementation Method 1
one physical layer control unit of the n physical layer control units generates a clock using a connected resonator
Data Source
AI summary
There are provided n (n is an integer greater than or equal to 2) physical layer control units which communicate with another apparatus connected to a device itself and control a physical layer, a logical layer control unit which controls a logical layer in communication with the other apparatus, and a control unit which controls the logical layer control unit from a power-supply ON state to a standby state in accordance with a standby instruction for the device itself, wherein one physical layer control unit of the n physical layer control units generates a clock using a connected resonator and the other physical layer control units receive the clock generated by the physical layer control unit to which the resonator is connected.