Integrated Camcorder Position and Direction Recording
Solution Overview
Problem
Conventional digital camcorders cannot conveniently record or display the position and direction information of shooting objects, requiring external GPS terminals and separate devices for position and direction measurement, which are cumbersome and expensive.
Innovation Solution
Integration of a position/direction measuring apparatus within the digital camcorder, including a receiver for satellite data, a position calculator, a sensing unit for terrestrial magnetic fields, and a transmitting unit to record and display position and direction information alongside images on a recording medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a portable GPS terminal is used to check position information, then position information can be obtained, but the operator must carry an additional expensive device and store position information separately
Solution Approach 1:
The patent combines the GPS receiver, position calculator, and recording medium into the digital camcorder itself. The receiver receives satellite data, the position calculator processes this data to determine position information, and the recording medium stores both image and position information together, eliminating the need for separate GPS terminals and separate recording media.
2Measurement precision
If a GPS terminal with electronic compass is used to obtain both position and direction information, then both types of information can be measured, but the operator still needs to connect to display devices and match times manually
Solution Approach 1:
The patent integrates the receiver, position calculator, direction information calculator, and recording unit into a single camcorder system. This unified system automatically records position and direction information together with image data at the same timestamp, eliminating manual time matching and connection requirements.
Solution Approach 2:
The camcorder system performs automatic time synchronization and integrated recording of position, direction, and image data. The system serves itself by automatically managing the correlation between different data types without requiring operator intervention for time matching or device coordination.
3Measurement precision
If external devices are used for position and direction measurement, then position and direction information can be obtained, but the overall system becomes cumbersome and requires multiple separate devices
Solution Approach 1:
The patent consolidates multiple measurement functions into a single integrated camcorder system. The receiver handles satellite data for position determination, the sensing unit detects terrestrial magnetic fields for direction information, and the recording unit stores all data together, replacing multiple external devices with one unified system.
Solution Approach 2:
The digital camcorder is designed to perform multiple functions: image shooting, position measurement via satellite receiver, direction measurement via magnetic field sensing, and integrated recording of all data. This multi-functional design eliminates the need for separate specialized devices.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables convenient and integrated recording and display of position and direction information with images, eliminating the need for external GPS terminals and separate devices, enhancing user experience by providing location and orientation data directly on the camcorder screen.
Implementation Method 1
a receiver which receives data for position measurement being transmitted from a satellite
Implementation Method 2
a position information calculator which calculates a position information using the data for position measurement being received at the receiver
Implementation Method 3
a sensing unit which senses a direction of a terrestrial magnetic field
Implementation Method 4
a direction information calculator which calculates direction information based on the information on the terrestrial magnetic field direction sensed by the sensing unit
Data Source
AI summary
An image recording apparatus which records position information of a place of shooting an image of an object and direction information of the object relative to the recording apparatus. A shooting unit takes images of an object. A receiver receives data for position measurement being transmitted from a satellite and a position information calculator calculates position information using the satellite data. A sensing unit senses a direction of a terrestrial magnetic field and a direction information calculator calculates direction information based on the sensed direction. A transmitting unit transmits the position and direction information to the recording unit which records the position and direction information on a recording medium together with image data corresponding to the taken images. The position and direction information may then be displayed together with the images when the images are reproduced.