Jog Dial with Embedded Buttons for Optical Disc Control
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Solution Overview
Problem
Optical disc reproducing apparatuses face challenges in arranging input buttons efficiently while maintaining operability, as enlarging the jog dial to mimic an analogue phonorecord's size limits the operation panel space, potentially deteriorating usability if buttons are made too small.
Innovation Solution
Incorporating a depression detecting element and a disc-shaped operation unit that accepts rotational instructions for speed and sequence control, allowing the jog dial to be sized similarly to an analogue phonorecord while integrating multiple functions into a compact design through push detectors and light sensors for mode selection and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the jog dial size is enlarged to match analogue phonorecord size, then the operation feeling similar to turntable is achieved, but the operation panel area becomes insufficient for placing multiple input buttons
Solution Approach 1:
The patent moves input buttons from the horizontal operation panel surface to the vertical cross-section of the jog dial by creating hollow cavities within the jog dial structure. This dimensional transition from 2D panel layout to 3D radial arrangement resolves the space conflict by utilizing the jog dial's internal volume and outer surface area.
Solution Approach 2:
The patent embeds multiple input buttons and their detecting elements within hollow cavities formed inside the jog dial structure. This nesting approach allows buttons to be integrated into the jog dial's body rather than placed on the external panel, maximizing space utilization while maintaining the large jog dial diameter for authentic turntable operation feel.
2Adaptability or versatility
If multiple input buttons are placed on the operation panel, then various functions can be controlled, but the operation panel area requirement increases, conflicting with large jog dial size
Solution Approach 1:
The patent redistributes multiple input buttons from the limited 2D operation panel to the 3D space around and within the jog dial. By arranging buttons radially around the jog dial and embedding some within its hollow structure, the system accommodates numerous control functions without expanding the horizontal panel footprint.
Solution Approach 2:
The jog dial structure serves multiple functions simultaneously: it acts as the operational interface for scratch playback, contains embedded input buttons for various controls, and provides structural housing for detecting elements. This multi-functionality consolidates what would traditionally require separate panel elements into the jog dial itself.
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
Enhances operability by allowing efficient button placement and maintaining a large jog dial area, providing an operation feel similar to an analogue record player while reducing the need for extensive button real estate on the panel.
Implementation Method 1
a light sensor unit which receives light reflected from or passing through the reflective member, and outputs first signals indicating a turning speed and a turning direction of the operation disc unit
Implementation Method 2
push detectors which output a second signal when the operation disc unit is depressed downward
Data Source
AI summary
There is provided an optical disc reproducing apparatus which reads out data from an optical disc, stores the data, and reproduces the stored data. The apparatus includes: a casing; an operation disc unit for accepting an instruction as to a speed and a sequence for reading the stored data via a rotational operation therewith, the operation disc unit being provided on a surface of the casing; and depression detecting element for accepting an instruction as to a predetermined operation by way of a depression of the operation disc unit, the depression detecting element being provided below the operation disc unit and on the surface of the casing.