Optical Transceiver Module Idle Power Management
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Solution Overview
Problem
Conventional active optical cables lack power management functions, leading to unnecessary high power consumption even when USB link components enter a low power-consumption state, due to the absence of mechanisms to detect idle states and manage power accordingly.
Innovation Solution
The optical transmission device incorporates optical transceiver modules with idle detection units and control units that periodically turn off power when no optical signal is received for a predetermined period, implementing power management by converting electrical signals to optical signals and vice versa, and managing power based on idle states to reduce consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional active optical cable is used without power management function, then optical fiber communication can be performed, but power consumption remains high even when USB link components enter low power-consumption state
Solution Approach 1:
The optical transceiver module automatically detects idle states through the idle detection unit and autonomously activates power-saving mode by turning off the optical signal transmitter, eliminating the need for external power management control while reducing power consumption during idle periods
Solution Approach 2:
The system periodically monitors the idle state of USB link components and alternates between active and power-saving modes based on detected activity patterns, enabling dynamic power adjustment without continuous high power consumption
2Speed
If optical transceiver module continuously operates to maintain communication readiness, then communication responsiveness is improved, but power consumption increases
Solution Approach 1:
The optical transceiver module dynamically adjusts its operational state based on real-time detection of USB link activity, transitioning between full-power active mode and power-saving mode to optimize the balance between communication responsiveness and power consumption
Solution Approach 2:
The idle detection unit continuously monitors for communication activity in advance, allowing the system to proactively switch to power-saving mode before actual communication needs arise, ensuring quick reactivation while maintaining low power consumption during idle periods
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 solution effectively reduces power consumption by periodically turning off power when devices are idle, aligning with low power states, thereby optimizing energy efficiency in optical fiber communication systems.
Implementation Method 1
an optical-to-electrical transformation path with an electrical signal transmitter; a conversion module driving the electrical signal transmitter to transmit an electrical signal via an electrical signal transmission terminal according to an optical signal received in the optical-to-electrical transformation path
Implementation Method 2
an electrical-to-optical transform path with an optical signal transmitter; a driving module driving the optical signal transmitter to transmit an optical signal via an optical signal transmission terminal according to an electrical signal received in the electrical-to-optical transformation path
Data Source
AI summary
An optical transmission device is provided. The optical transmission device is coupled between a first electronic device and a second electronic device, and includes a first optical transceiver module coupled to the first electronic device; a second optical transceiver module coupled to the second electronic device; and first and second optical fibers coupled between the first optical transceiver module and the second optical transceiver module, wherein the second optical transceiver module transmits an optical signal to the first optical transceiver module periodically when the second electronic device is idle for a first predetermined period.