Image Capture Control Through Press Duration for Photo and Video Selection
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Solution Overview
Problem
Camera-enabled electronic devices, particularly wearable devices like electronics-enabled eyewear, face challenges with limited space and capacity for intuitive input mechanisms to control photo or video capture, exacerbated by the need for image-capture components to boot up before capturing and processing data.
Innovation Solution
A press-and-hold input mechanism distinguishes between photo and video capture based on the duration of the press, with a predefined threshold, allowing dormant image-capture components to boot up during the press, and uses visual indicators to confirm the capture mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single common input mechanism is provided for photo capture or video capture, then device complexity is reduced, but it becomes difficult to provide intuitive user-selection for different capture modes
Solution Approach 1:
The patent applies parameter changes by using the duration of the press-and-hold input as a distinguishing parameter. Short presses (below threshold) trigger video capture, while long presses (above threshold) trigger photo capture. This allows a single input mechanism to provide intuitive mode selection through temporal parameter variation rather than requiring separate buttons or complex interfaces.
2Use of energy by moving object
If image-capture components are kept in dormant state to conserve energy, then battery performance is improved, but delay occurs during boot-up before capture can be initiated
Solution Approach 1:
The patent applies preliminary action by initiating the boot-up sequence of image-capture components immediately when the press-and-hold input is detected, before the capture is actually triggered. This allows the components to start warming up during the press duration, reducing the perceived delay when the capture is finally initiated upon releasing the input.
3Speed
If photo capture is triggered immediately on button press, then responsiveness is improved, but lag is experienced when image-capture components are dormant
Solution Approach 1:
The system performs preliminary boot-up of image-capture components during the press-and-hold duration. By the time the user releases the input to trigger capture, the components are already active and ready, eliminating lag. This is particularly important for photo capture where immediate responsiveness is critical.
Data Source
AI summary
In a camera-enabled electronic device, photo capture is triggered by a press-and-hold input only if the holding duration of the press-and-hold input is greater than a predefined threshold duration. A press-and-hold input shorter in duration than the threshold triggers video capture. Thus, a short press triggers video capture, while a long press triggers photo capture.