Cascade Display Inquiry for Power Saving Mode Transition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In cascade-connected image display systems, existing technologies face challenges in transitioning to a power saving mode without disrupting image display on devices that do not support this feature, particularly when there are varying performance levels among connected devices.
Innovation Solution
An image display apparatus and method that include a processor or circuit for receiving an image signal, communicating with external devices, and inquiring about support for a transmission stopping state, allowing for controlled switching of the response to a control signal based on the inquiry results, ensuring appropriate mode transitions and power saving without disturbing non-compatible devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the image output apparatus transits to a power saving mode based on existing techniques, then power consumption is reduced, but display on image display apparatuses that do not support this technique is disturbed
Solution Approach 1:
The patent introduces an intermediary inquiry mechanism where the image output apparatus asks cascade-connected image display apparatuses whether they support the transmission stopping state before transitioning to power saving mode. This intermediary step allows the system to gather capability information and make an informed decision about mode transition, preventing disruption to devices that cannot handle the transmission stopping state.
Solution Approach 2:
The patent implements a feedback loop where the image output apparatus receives responses from cascade-connected image display apparatuses regarding their support for the transmission stopping state. Based on this feedback, the apparatus determines whether to transition to power saving mode, ensuring that the decision is made with complete information about system capabilities.
2Use of energy by moving object
If the image output apparatus performs mode transition control in cascade-connected systems, then power saving is achieved, but system complexity increases
Solution Approach 1:
The patent enables each image display apparatus in the cascade connection to self-report its capability regarding the transmission stopping state. Instead of requiring complex centralized control logic, each device independently provides information about its own capabilities, simplifying the overall control architecture while still achieving coordinated power saving behavior.
3Adaptability or versatility
If the image output apparatus checks performance information of all cascade-connected devices, then compatibility is ensured, but communication overhead increases
Solution Approach 1:
The patent extracts only the specific capability information needed for power saving mode operation - namely, whether each image display apparatus supports the transmission stopping state. Instead of checking all performance information, the system focuses on this single critical parameter, reducing communication overhead while ensuring necessary compatibility.
Data Source
AI summary
An image display apparatus includes an input unit that receives an image from a first external apparatus, an output unit that outputs an image to a second external apparatus, a communication unit that performs communication with the first external apparatus or the second external apparatus, a receiving unit that receives a control signal that is transmitted from the first external apparatus and indicates that the first external apparatus transits to an image signal transmission stopping state, an inquiry unit that inquires of the second external apparatus about whether or not the second external apparatus supports the transmission stopping state, and a control unit that, in a case the control signal is received, switches a response to the control signal according to a result of the inquiry of the inquiry unit.