Video Decoder Orientation Adaptation for Battery Conservation

Solution Overview

Problem

Multimedia devices consume extensive computing resources and battery life when rotating video images between landscape and portrait modes, as they require additional processing steps for each frame.

Innovation Solution

Incorporating a video decoder capable of decoding video in both landscape and portrait modes, eliminating the need for an additional rotation process by transferring video data in the appropriate orientation directly to the display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If video rotation is performed to display content in different orientations, then display adaptability is improved, but computing resource consumption and battery life increase

Engineering Contradiction:

Improvedisplay orientation adaptabilityVSAvoidbattery life

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The video decoder performs preliminary action by decoding video frames directly in the required display orientation (landscape or portrait) based on the display's current orientation. This eliminates the need for subsequent rotation operations, as the video data is already prepared in the correct orientation for display.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces the mechanical rotation process (rotating video frames after decoding) with a more efficient data transfer approach. Instead of rotating decoded video frames, the system transfers video data in the appropriate orientation directly from the decoder to the display, substituting a complex computational mechanism with a simpler data transfer mechanism.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If video rotation is performed to display content in different orientations, then display adaptability is improved, but computing resource consumption increases

Engineering Contradiction:

Improvedisplay orientation adaptabilityVSAvoidcomputing resource consumption

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The video decoder performs preliminary action by decoding video frames directly in the required display orientation (landscape or portrait) based on the display's current orientation. This eliminates the need for subsequent rotation operations, as the video data is already prepared in the correct orientation for display.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces the mechanical rotation process (rotating video frames after decoding) with a more efficient data transfer approach. Instead of rotating decoded video frames, the system transfers video data in the appropriate orientation directly from the decoder to the display, substituting a complex computational mechanism with a simpler data transfer mechanism.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If additional rotation process is added for video display, then display orientation flexibility is improved, but processing time increases

Engineering Contradiction:

Improvedisplay orientation flexibilityVSAvoidprocessing time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The video decoder performs preliminary action by decoding video frames directly in the required display orientation (landscape or portrait) based on the display's current orientation. This eliminates the need for subsequent rotation operations, as the video data is already prepared in the correct orientation for display.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces the mechanical rotation process (rotating video frames after decoding) with a more efficient data transfer approach. Instead of rotating decoded video frames, the system transfers video data in the appropriate orientation directly from the decoder to the display, substituting a complex computational mechanism with a simpler data transfer mechanism.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS8610830B2Video rotation method and device

Publication Date: 2013.12.17 APPLE INC

AI summary

A media processing system with an improved method and device for rotating a video image is provided. Embodiments of the media processing system include a video decoder with the ability to output decoded video in a landscape or portrait orientation. In some embodiments, the video output orientation is based on the physical orientation of the display as indicated by an electronic sensor.