Wireless Camera System Remote Control via Orientation Sensor
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Solution Overview
Problem
Existing digital video camera systems face challenges in recording high-quality audio signals when the image capture and recording units are separated, as they lack the capability to synchronously record audio at different locations, and the size of the recording unit is not fully miniaturized due to the need for a memory card for storage.
Innovation Solution
A digital video camera system with an image capture unit and an image recording unit that are wirelessly connected, allowing remote control of the pointing direction of the optical system using an orientation sensor and user controls, enabling the capture and storage of digital video sequences with synchronized audio from both units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the image capture unit and recording unit are separated and wirelessly connected, then remote control capability and audio recording at different locations are enabled, but the system complexity increases
Solution Approach 1:
The system is divided into two separate units: an image capture unit and a recording unit. These units can be used independently or together, allowing remote control capability while distributing system functions across separate components, thereby managing complexity through modular design
Solution Approach 2:
Each unit is designed to perform multiple functions. The image capture unit can capture both images and audio, while the recording unit can record from both units. This multi-functionality reduces the need for additional specialized components, managing system complexity while enhancing versatility
2Adaptability or versatility
If the image capture unit and recording unit are separated, then audio can be recorded at different locations, but the audio synchronization becomes more difficult
Solution Approach 1:
The system employs time synchronization mechanisms where each unit tracks and reports its operational status and timing information to the other. This feedback loop enables the central processing to coordinate audio recording timestamps, ensuring synchronized audio capture from different locations despite the physical separation of units
3Quantity of substance
If the recording unit includes a memory card for storage, then video and audio can be stored, but the size of the recording unit cannot be fully miniaturized
Solution Approach 1:
The storage function is extracted from the recording unit by using the image capture unit's existing memory card slot and storage capability. The recording unit focuses on recording and processing functions, while video and audio data are stored in the image capture unit, allowing the recording unit to be miniaturized without sacrificing storage capacity
Data Source
AI summary
A digital video camera system comprising image capture and recording units. The image capture unit includes an image sensor for capturing a digital video signal, an optical system for forming an image of a scene onto the image sensor, a controllable tilting mechanism for adjusting a pointing direction of the optical system, and a first wireless communication system. The image recording unit includes a second wireless communication system, an image display, a user interface including an orientation sensor, and a program memory storing instructions to implement a method for capturing a digital video sequence in response to user activation of a user control. The method includes wirelessly receiving a digital video signal from the image capture unit, displaying the received digital video signal on the image display, and adjusting the pointing direction of the optical system in response to detecting a change in the orientation of the image recording unit.