Video Recording Camera Control with Camera-Specific Voice Delays
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Solution Overview
Problem
Conventional voice recognition systems in video recording devices with multiple cameras struggle to adjust photographing timing appropriately for different camera orientations, leading to degraded usability and potential loss of anticipated timing due to incorrect voice command selection.
Innovation Solution
A video recording device with multiple imaging units (in and out cameras) that adjusts the delay time before starting a recording process based on the selected camera, with longer delays for the in-camera to allow for natural posing, and includes a control unit to manage this timing and display the recording start timing visually.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If voice recognition is used to trigger photographing immediately, then responsiveness is improved, but natural posing is degraded for self-images
Solution Approach 1:
The patent applies dynamics by making the delay time adjustable and camera-dependent. The system dynamically selects different delay times based on which camera is being used (front-facing for self-images vs. rear-facing for other subjects), allowing optimal timing for each scenario while maintaining voice recognition responsiveness.
2Adaptability or versatility
If multiple command voices are registered for different photographing purposes, then versatility is improved, but usability is degraded due to selection complexity
Solution Approach 1:
The patent extracts the delay time parameter from the voice command selection process. Instead of requiring users to select different voice commands for different delay requirements, the system automatically applies appropriate delay times based on camera selection, simplifying the user interface while maintaining versatility.
3Ease of operation
If delay time is increased for natural posing, then photographing quality is improved, but timing precision is worsened
Solution Approach 1:
The patent applies local quality by implementing camera-specific delay times rather than a universal delay. The front-facing camera uses a longer delay for self-images to allow natural posing, while the rear-facing camera uses a shorter or zero delay for other subjects, optimizing each scenario locally without compromising overall timing precision.
Data Source
AI summary
A video recording device includes: a first imaging unit (in camera) arranged on a same face as that of a display unit of a casing of the device; a second imaging unit (out camera) arranged on a face different from that of the display unit of the casing of the device; and an audio input unit that inputs a command voice giving an instruction for recording a video signal. A control unit sets a delay time until start of a recording process performed by the recording unit after input of the command voice to be different in accordance with the enabled imaging unit and sets a delay time of a case where the first imaging unit is enabled to be longer than a delay time of a case where the second imaging unit is enabled.