Unified OSD Control for Synchronous Video Audio Settings

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Solution Overview

Problem

Users face inconvenience in synchronously controlling video and audio parameters of separate display and play devices, requiring multiple steps to adjust settings, which is inefficient.

Innovation Solution

A control system that includes an on-screen display (OSD) system, encoding/decoding modules, and a bus connecting both devices, allowing for the transmission and decoding of OSD signals to control video and audio parameters synchronously.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If separate OSD systems are used in display device and play device, then each device can be controlled independently, but user operation becomes complex and time-consuming

Engineering Contradiction:

ImproveOSD control convenienceVSAvoidtime to adjust sound parameters

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent merges the OSD control functions of the display device and play device into a unified system. The display device's OSD system can directly control the play device's audio parameters through signal transmission, allowing users to adjust sound settings through a single interface rather than switching between separate control systems.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The display device's OSD system is given universal control capability, enabling it to not only control display parameters but also audio parameters of the connected play device. This multi-functional approach allows a single OSD interface to manage both video and audio settings across multiple devices.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If separate OSD systems are used in display device and play device, then each device maintains independent control, but device complexity increases

Engineering Contradiction:

Improveindependent device controlVSAvoidnumber of OSD systems

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces an intermediary mechanism where the display device acts as a mediator between the user and the play device. Through signal transmission and decoding, the display device's OSD system can indirectly control the play device's parameters, eliminating the need for a separate OSD system in the play device while maintaining independent control capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Measurement precision

If users control each device separately, then precise control of each device is possible, but synchronization of settings becomes difficult

Engineering Contradiction:

Improveparameter control precisionVSAvoidsynchronization of video and audio settings

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the display device receives and decodes control signals, then transmits appropriate control commands to the play device. This closed-loop system ensures that adjustments made through the display device's OSD are accurately reflected in the play device's settings, maintaining synchronization between video and audio parameters.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS7812889B2Control system for synchronously controlling display device and play device

Publication Date: 2010.10.12 CONTROL SYNC SYSTEMS LLC

AI summary

A control system for controlling video and audio parameters of a display device and a play device is provided. An OSD system of the play device and an OSD system of the display device receive OSD signals respectively. The OSD signals are transmitted between the play device and the display device through a bus. Therefore, the video and audio parameters are controlled synchronously by the OSD signals. Furthermore, displayed images and sound are controlled as well.