Camera Position Detection for Accurate Power Saving Control

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional methods for transitioning a mirrorless camera to a power saving mode based on vibration and attitude may fail to accurately discern the user's intention to continue using the camera, leading to unnecessary power consumption.

Innovation Solution

The camera transitions to power saving mode based on a change in position detected after a predetermined operation, using position data computation to distinguish between user intentions to continue using the camera.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If the camera transitions to power saving mode based on a fixed time period since the last operation, then power consumption is reduced during idle periods, but power is wasted when the user does not intend to continue using the camera

Engineering Contradiction:
Improvepower consumptionVSAvoiddetection accuracy of user intention
Core Design Contradiction:
Loss of energyVSMeasurement precision

Solution Approach 1:

The patent changes the detection parameter from simple time-based idle detection to position-based detection using acceleration sensors. By monitoring changes in camera position and attitude angles, the system can more accurately detect when the user has finished using the camera, enabling more precise control of power saving mode transitions.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the mechanical/time-based idle detection mechanism with a sensor-based detection system using acceleration sensors and gyro sensors. This substitution allows for more accurate and nuanced detection of user intent through position and attitude changes rather than relying solely on time intervals.

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

2Extent of automation

If the camera uses vibration and attitude detection to determine user intention, then power saving mode transitions can be triggered, but the system cannot distinguish between viewing the liquid crystal panel and having the camera hung around the neck

Engineering Contradiction:
Improveautomatic power saving mode transitionVSAvoiddiscrimination accuracy of use state
Core Design Contradiction:
Extent of automationVSMeasurement precision

Solution Approach 1:

The patent adds position detection as a new dimension to the existing attitude detection system. By combining attitude angles (pitch, yaw, roll) with position changes detected through acceleration sensors, the system can differentiate between similar attitudes in different contexts - such as holding the camera to view the panel versus having it hung around the neck.

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

Solution Approach 2:

The patent makes the detection system multi-functional by using the same sensor suite (acceleration sensors and gyro sensors) for both attitude detection and position detection. This universal approach allows the system to handle multiple detection tasks simultaneously, improving both automation and discrimination accuracy.

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

3Reliability

If the camera waits for a certain period to transition to power saving mode, then false transitions are avoided, but unnecessary power consumption occurs when the user has no intention to continue use

Engineering Contradiction:
Improvereliability of power saving mode transitionVSAvoidwasteful power consumption
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent implements feedback through continuous monitoring of position and attitude changes. The system constantly checks sensor data to determine whether the camera has been placed down or hung around the neck, providing real-time feedback that triggers power saving mode transitions immediately when appropriate, eliminating the need for fixed waiting periods.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12581188B2Information processing apparatus, control method, and storage medium
Publication Date: 2026.03.17 CANON KK
  • US12581188B2 patent drawing
  • US12581188B2 patent drawing
  • US12581188B2 patent drawing

AI summary

There is provided an information processing apparatus. A first detection unit detects that a predetermined operation has been performed with respect to the information processing apparatus. A second detection unit detects a change in a position of the information processing apparatus from when the predetermined operation was performed. A control unit performs control to cause the information processing apparatus to transition to a power saving mode when the change in the position has satisfied a predetermined positional criterion.