Cross-Device Volume Control for Seamless Room-to-Room Playback

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Solution Overview

Problem

Existing multimedia playback devices do not seamlessly transition playback when a user moves from one room to another, potentially disrupting the audio or video experience due to changes in volume or connectivity.

Innovation Solution

A control device that acquires volume information from a first device and, if a predetermined condition is met, determines and controls a second device to maintain consistent playback, either by synchronizing volume or playback between devices using wireless communication protocols like Bluetooth, Wi-Fi, or Zigbee, ensuring uninterrupted multimedia experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a user moves from one room to another while multimedia playback is ongoing, then the user's location changes, but the audio volume may become inappropriate or playback may interrupt, degrading the user experience

Engineering Contradiction:
Improveuser experience continuityVSAvoidplayback continuity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The control device continuously monitors volume information from the first device and compares it against predetermined conditions. When the user moves to a different location (second device area), the system detects the volume change and automatically adjusts the playback parameters to maintain appropriate audio levels, creating a closed-loop feedback system that ensures continuous user experience

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The control device acts as an intermediary between the first device (original playback source) and the second device (new location's playback source). It receives volume information from the first device, processes the predetermined conditions, and controls the second device to maintain seamless playback continuity across different locations

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the system automatically controls volume between devices to maintain playback continuity, then user experience is improved, but the device complexity and control mechanisms increase

Engineering Contradiction:
Improvecross-device playback capabilityVSAvoidcontrol system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control device is designed with multi-functionality, serving as both a monitoring device that collects volume information and a controlling device that adjusts playback parameters. This universal design allows a single device to handle multiple tasks (detection, processing, and control) without requiring separate specialized components for each function

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

Solution Approach 2:

The system dynamically changes playback parameters (volume levels, playback state) based on the user's location and the predetermined conditions. By adjusting these parameters automatically, the system achieves adaptability across different devices and locations without requiring complex manual configuration or intervention

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10312874B2Volume control methods and devices, and multimedia playback control methods and devices
Publication Date: 2019.06.04 BEIJING ZHIGU RUI TUO TECH
  • US10312874B2 patent drawing
  • US10312874B2 patent drawing
  • US10312874B2 patent drawing

AI summary

Volume control methods and control devices, and multimedia playback control methods and control devices are provided. The volume control method comprises: acquiring volume information of a first device; in response to that the acquired volume information of the first device satisfies a predetermined condition, determining at least one second device; and controlling volume of the at least one second device. When a user goes away from a multimedia playback device, multimedia playback of another device can be controlled, to cause that multimedia playback that the user watches/listens to is not affected obviously.