Multivision Display Sound Channel Control
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Solution Overview
Problem
Existing multivision systems face challenges in effectively outputting sound across multiple display apparatuses due to the lack of a systematic method for sound channel selection and power management, leading to suboptimal audio quality and increased power consumption.
Innovation Solution
A control system that determines whether each display apparatus should output sound and selects the appropriate sound channel based on its position within the juxtaposition, allowing for efficient multi-channel sound output while minimizing power usage by enabling some apparatuses to remain silent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If each display apparatus outputs sound from both loudspeakers, then sound coverage is improved, but power consumption increases and audio quality deteriorates due to meaningless channel separation
Solution Approach 1:
The patent applies local quality by making different display apparatuses in the multivision system have different sound output characteristics based on their positions. Left-side display apparatuses output only left channel sound, right-side display apparatuses output only right channel sound, and center display apparatuses output both channels. This localized differentiation improves audio quality while reducing overall power consumption compared to all apparatuses outputting both channels.
Solution Approach 2:
The patent segments the sound output function across different display apparatuses based on their horizontal positions. Instead of all apparatuses outputting complete stereo sound, the system divides the audio channels among specific apparatuses, with left-side apparatuses handling left channel only, right-side apparatuses handling right channel only, and center apparatuses handling both. This segmentation reduces redundant power consumption while maintaining audio quality.
2Object-generated harmful factors
If all display apparatuses output sound, then sound coverage is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamics by making the sound output configuration adjustable based on the operational mode. The control apparatus can dynamically select which display apparatuses output sound and which channels to output based on whether full stereo sound is required or if power saving mode is activated. This dynamic adaptability allows the system to balance between power consumption and sound output flexibility according to actual needs.
Solution Approach 2:
The patent changes the parameter of sound output configuration based on operational requirements. The system can switch between different parameter sets: full stereo output mode where center apparatuses output both channels, or power-saving mode where only peripheral apparatuses output their respective channels. This parameter change capability allows optimization of power consumption while maintaining adaptability to different usage scenarios.
3Object-generated harmful factors
If center display apparatus outputs both left and right channels, then audio quality is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by making center display apparatuses output both left and right channels while peripheral apparatuses output only their respective channels. This localized differentiation concentrates the complete stereo sound output where it is most needed (at the center for immersive audio experience) while reducing power consumption at peripheral positions where channel separation is less critical.
Solution Approach 2:
The patent implements partial action by having center display apparatuses output both channels (excessive action for complete stereo) while peripheral apparatuses output only necessary channels (partial action). This partial/excessive differentiation optimizes the balance between audio quality and power consumption by applying complete channel output only where it provides maximum audio quality improvement.
Data Source
AI summary
It is expected to provide a display system, display control method and computer program for effectively outputting sound with plural display apparatuses in a two dimensional array.A control apparatus 2 is connected to a two dimensional array display apparatus unit made with display apparatuses 1, 1, . . . configuring a multivision system. A controlling unit 20 of the control apparatus 2 obtains position information for the display apparatus unit in the two dimensional array. Based on the position of each display apparatus 1 in the two dimensional array display apparatus unit, the controlling unit 20 decides the presence or absence of output sound and selects the channel for the output sound.