Multi-Functional Control Element for Single-Handed Radio Operation
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Solution Overview
Problem
Conventional communication devices, such as land mobile radio (LMR) devices, require two hands to operate multiple rotary knobs and a PTT button, making it inconvenient for users to control radio transceivers efficiently, especially in situations where one hand is occupied or attention is diverted.
Innovation Solution
A single control element with a switch body, a primary actuator, and a pressure sensor that allows for multiple functions to be controlled using a combination of motion and activation, enabling single-handed operation of radio transceivers by controlling functions like talk group selection, volume adjustment, and PTT calls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple rotary knobs and a PTT button are provided for controlling radio transceiver functions, then the device provides comprehensive control functionality, but the device complexity increases and requires two hands for operation
Solution Approach 1:
The patent applies multi-functionality by enabling a single control element to perform multiple functions through different interaction modes. The control element can detect rotation gestures for channel selection, tilt gestures for volume control, and pressure activation for PTT calls, replacing what traditionally required multiple separate controls. This consolidates multiple control functions into one universal interface, reducing device complexity while maintaining comprehensive control capability.
2Adaptability or versatility
If multiple rotary knobs are disposed on the device, then comprehensive control functions are available, but the ease of operation deteriorates as two hands are required
Solution Approach 1:
The control element serves as a universal interface that can execute multiple control functions with single-handed operation. By detecting different gesture types (rotation, tilting, pressing) from a single element, the system eliminates the need for users to manipulate multiple separate knobs with two hands, thereby improving ease of operation while preserving comprehensive control functionality.
Solution Approach 2:
The patent merges multiple control functions that were previously distributed across separate physical controls into a single control element. By combining channel selection, volume adjustment, and PTT activation capabilities into one element that responds to different gesture modes, the design consolidates control operations, making the device easier to operate with one hand.
3Ease of operation
If a single control element with multiple functions is used, then the ease of operation improves for single-handed use, but the device complexity in control logic increases
Solution Approach 1:
The patent replaces traditional mechanical control systems (multiple physical knobs and buttons) with a sensor-based detection system. The control element incorporates sensors that detect gesture characteristics (rotation direction, tilting angle, pressure magnitude) to determine the intended function. This substitution of mechanical diversity with sensor-based recognition simplifies the physical structure while managing control logic complexity through software-based gesture interpretation.
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 intuitive, single-handed operation of communication devices, reducing the need for multiple controls and improving user convenience, while also potentially reducing device size and manufacturing costs.
Implementation Method 1
a pressure sensor accessible at said lateral surface portions of the primary actuator
Data Source
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AI summary
Control of multiple functions of an electronic device is provided by using a single control element (102) including a switch body (312) adjustable between multiple switch positions, a primary actuator (302) with lateral (302b) and distal surface (302a) portions extending from the switch body and configured for adjusting the switch body between the switch positions, and a pressure sensor (314) operable via an activation force at the lateral surfaces of the primary actuator. A first function can be controlled responsive to motion of the primary actuator during an activation of the pressure sensor. Additionally, a second function can be controlled responsive to the motion of the primary actuator of the control element exclusive of the activation of the pressure sensor. Further, a third function can be controlled in responsive to activation of the pressure sensor for at least a first period of time exclusive of motion of the primary actuator.