Flat Panel Audio Speaker Orientation Adaptation

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Solution Overview

Problem

Flat panel electronic devices experience disrupted audio enjoyment when rotated due to changes in speaker positions, affecting the playback of left and right channel audio.

Innovation Solution

An audio playing apparatus with symmetrically disposed speakers and a sensor-controlled system that adjusts speaker positions based on the device's placement, ensuring optimal audio channel alignment regardless of orientation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If speakers are fixed at left and right sides of the flat panel electronic device, then stereo audio effect is achieved in initial orientation, but audio enjoyment is disrupted when the device is rotated

Engineering Contradiction:
Improveaudio enjoymentVSAvoiddevice rotation adaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies dynamics by making the speaker configuration adaptable rather than fixed. Multiple speaker units are arranged at different positions (left side, right side, top side, bottom side) and the system dynamically selects which speakers to activate based on the device's rotation state detected by a sensor. This allows the audio output to adapt to different orientations while maintaining stereo effect.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameters of the speaker system based on device orientation. When the device rotates, the controller switches between different speaker pairs (e.g., from left-right pair to top-bottom pair), effectively changing which speakers are active and how the audio channels are distributed, thereby maintaining audio quality across different orientations.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If multiple pairs of speakers are used to maintain stereo effect in all orientations, then audio quality is maintained, but device complexity and power consumption increase

Engineering Contradiction:
Improveaudio qualityVSAvoidspeaker configuration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The speaker system is segmented into multiple independent speaker units positioned at different locations around the device perimeter. Each speaker can be independently controlled, allowing the system to activate only the necessary subset of speakers based on orientation. This segmentation enables flexible configuration without requiring all speakers to operate simultaneously, reducing complexity while maintaining audio quality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple speaker units serve universal functions by being capable of playing both left and right channel audio depending on their activated state. The same physical speakers can be configured in different pairs (left-right, top-bottom) based on device orientation, making the speaker system multi-functional and adaptable to various orientations without requiring orientation-specific hardware.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If all speaker pairs are activated simultaneously, then audio coverage is maximized, but power consumption increases

Engineering Contradiction:
Improveaudio coverageVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system applies partial action by activating only the necessary subset of speaker pairs required for the current device orientation rather than all speakers simultaneously. Based on sensor detection of device placement, the controller selectively enables one or two speaker pairs (e.g., only left-right pair in landscape mode, or top-bottom pair in portrait mode), reducing power consumption while maintaining sufficient audio coverage for the given orientation.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS9215528B2Flat panel electronic device and audio playing apparatus thereof
Publication Date: 2015.12.15 NVIDIA CORP
  • US9215528B2 patent drawing
  • US9215528B2 patent drawing
  • US9215528B2 patent drawing

AI summary

A flat panel electronic device and an audio playing apparatus thereof are provided. The audio playing apparatus comprises an audio generator, a plurality of speakers, a sensor and a controller. The audio generator is operable to generate a left channel audio and a right channel audio. The plurality of speakers are configured such that at least one pair of speakers is symmetrically disposed at a left side and a right side of the flat panel electronic device no matter how the flat panel electronic device is placed. The sensor is operable to detect a placed state of the flat panel electronic device in the installed state. The controller is operable to receive a detecting signal from the sensor so as to control the at least one pair of speakers to play the left channel audio and the right channel audio correspondingly according to the placed state of the flat panel electronic device.