Partial Functionality Communication Link for Power Reduction
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Solution Overview
Problem
Current multimedia systems face inefficiencies in power consumption and bandwidth allocation during standby modes, as they require dedicated wires for limited functionality, which increases the number of wires needed and does not significantly enhance regular mode bandwidth.
Innovation Solution
A communication link utilizing a cable with four pairs of wires, where three pairs transmit uncompressed video and audio data in active mode and a subset of data types in low-power partial-functionality (LPPF) mode, while the fourth pair handles bidirectional system control and data, allowing for power reduction by using simpler modulation schemes and reducing the number of active wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated wires are allocated for standby mode data transmission, then system control functionality is maintained in standby mode, but the total number of required wires increases
Solution Approach 1:
The fourth pair of wires serves dual purposes: transmitting standby mode system control data when the multimedia system is in standby mode, and transmitting audio data when the system is in active mode. This multi-functional approach eliminates the need for separate dedicated wires for standby mode control, reducing the total wire count while maintaining full functionality in both operational states.
2Reliability
If transceivers are operated in standby mode for dedicated control wires, then system control data can be transmitted, but power consumption is not significantly reduced
Solution Approach 1:
The transceiver operating on the fourth pair of wires dynamically adapts its operation mode based on the system state: it operates in full mode during active operation to transmit audio data, and switches to a reduced functionality mode during standby to transmit only system control data. This dynamic adaptation allows the transceiver to consume appropriate power levels for each operational state, avoiding continuous full-power operation.
Solution Approach 2:
The transceiver changes its operational parameters between active and standby modes, adjusting its data transmission capabilities and power consumption accordingly. In standby mode, it transmits only essential system control data with reduced bandwidth requirements, while in active mode it transmits full-quality audio data, thereby optimizing power consumption across different operational states.
3Reliability
If standby mode bandwidth is increased to match regular bandwidth, then all data types can be transmitted in standby mode, but the bandwidth allocation becomes inefficient
Solution Approach 1:
The communication system implements different bandwidth allocations for different operational modes: the fourth pair of wires receives higher bandwidth allocation during active mode for audio data transmission, while during standby mode it operates with lower bandwidth sufficient for system control data only. This localized quality adjustment optimizes bandwidth utilization efficiency by matching capacity to actual transmission needs in each mode.
Data Source
AI summary
Communication link including a cable containing four pairs of wires, three transmitters to transmit uncompressed video data and audio data over three of the pairs of wires to three receivers, and two transceivers to form a bidirectional multi data type communication link over the fourth pair of wires. An active mode of operation for transmitting the uncompressed video data and the audio data over the three pairs of wires, and for transmitting bidirectional data over the fourth pair of wires. And a first low power partial functionality mode of operation for transmitting bidirectional system controls.