Vehicle Rearview Mirror Display Orientation Adjustment

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Solution Overview

Problem

Existing rearview mirror displays in vehicles can be unintuitive for drivers to adjust, as they lack a straightforward method to change the region-of-interest presented, often resulting in obstructed views and potential glare or parallax effects.

Innovation Solution

A rearview display system that includes a rearview camera, a fixed-position mirror display, and a rotatable housing with sensors to detect orientation changes, allowing a controller to adjust the region-of-interest by performing a pixel shift within the captured image, enabling intuitive adjustment of the displayed area by rotating the housing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional adjustable mirror is used to change the viewing angle, then the driver can adjust the view, but the adjustment mechanism becomes complex and may cause parallax effects

Engineering Contradiction:
Improveease of adjustmentVSAvoidadjustment mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical adjustment mechanism with an electronic image processing system. Instead of physically moving the mirror to change the viewing angle, the system captures a wide-angle image and electronically selects and displays the relevant region of interest on the fixed mirror display, eliminating mechanical complexity and parallax effects

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent transitions from a one-dimensional mechanical rotation of the mirror to a two-dimensional electronic selection of image regions. The wide-angle camera captures the entire field of view, and the controller selectively displays different portions of this captured image on the fixed mirror, adding the dimension of electronic image manipulation

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If the mirror display is made adjustable to change the displayed area, then the driver can customize the view, but the display structure becomes more complex and may cause glare

Engineering Contradiction:
Improvedisplay customizationVSAvoiddisplay structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces mechanical display adjustment mechanisms with electronic image processing. The fixed mirror display shows different regions of interest by electronically selecting and processing the captured image, eliminating the need for complex mechanical display adjustment components

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent segments the captured wide-angle image into different regions of interest that can be independently selected and displayed. The controller divides the image data and displays only the relevant portion on the mirror, allowing customization without physical adjustment mechanisms

Inventive Principle:
Principle #1Segmentation

3Area of stationary object

If a wide-angle camera is used to capture the entire area behind the vehicle, then the view coverage is improved, but the image quality and resolution may be reduced

Engineering Contradiction:
Improveview coverage areaVSAvoidimage resolution
Core Design Contradiction:
Area of stationary objectVSMeasurement precision

Solution Approach 1:

The patent segments the wide-angle captured image to display only the relevant region of interest on the mirror. By showing a cropped portion of the wider image rather than the entire captured area, the system effectively increases the resolution and detail in the displayed region while maintaining wide coverage capability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses a wide-angle camera to capture the entire field of view and then selectively displays different portions of this captured image on the fixed mirror, adding the dimension of electronic image manipulation to resolve the resolution issue

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS10913396B2Adjustment of vehicle rearview mirror displays
Publication Date: 2021.02.09 FORD GLOBAL TECH LLC
  • US10913396B2 patent drawing
  • US10913396B2 patent drawing
  • US10913396B2 patent drawing

AI summary

Method and apparatus are disclosed for adjustment of vehicle rearview mirror displays. An example vehicle includes a rearview camera for capturing an image, a rearview mirror display positioned at a fixed orientation that is to present a portion of the image, a housing to rotate behind the rearview mirror display, and a sensor to detect a orientation of the housing. The example vehicle also includes a controller to adjust, based upon the orientation of the housing, the portion of the image presented via the rearview mirror display.