PTT Handset Multi-Frequency Transceiver
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Emergency personnel face challenges in quickly communicating with multiple groups on different frequencies using traditional push-to-talk handsets, leading to information loss and cumbersome multiple radio usage, which can be dangerous and cause confusion.
Innovation Solution
A single PTT handset with a multiple PTT function allows continuous reception on one frequency while enabling transmission on pre-programmed frequencies, minimizing device switching and information loss, by using a combination of a PTT button and alpha-numeric keypad to activate and control transmission frequencies without changing the receiving frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If emergency personnel carry multiple handsets to communicate with multiple groups on different frequencies, then communication coverage and information loss are minimized, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent implements a single handset capable of performing multiple functions by allowing the receiver to continuously monitor one frequency while the transmitter can switch to different pre-programmed frequencies. This multi-functionality enables one device to replace multiple handsets, maintaining adaptability while reducing complexity
Solution Approach 2:
The patent segments the communication functions into independent transmitter and receiver operations. The receiver operates independently on a selected frequency while the transmitter can be programmed to transmit on different frequencies without changing the receiver frequency, allowing simultaneous monitoring and transmission on multiple frequencies
2Adaptability or versatility
If manual channel switching is performed to change transmission frequency, then communication with different groups is enabled, but response time and productivity deteriorate due to set up time
Solution Approach 1:
The patent applies preliminary action by pre-programming multiple transmission frequencies into the handset before field use. When communication with a different group is needed, the user simply selects from pre-configured frequencies rather than manually switching channels, eliminating set up time and improving response time
Solution Approach 2:
The patent makes the transmission frequency dynamic and adjustable while the receiver frequency remains fixed. The transmitter can quickly switch between pre-programmed frequencies without affecting the continuous reception operation, enabling rapid adaptation to different communication needs
3Loss of information
If multiple handsets are carried to monitor multiple frequencies simultaneously, then information loss is minimized, but ease of operation and safety deteriorate due to device management complexity
Solution Approach 1:
The patent merges the functions of multiple handsets into a single device by combining a continuous receiver on one frequency with a multi-frequency transmitter capability. This consolidation eliminates the need to manage multiple separate devices while maintaining the ability to monitor and transmit on multiple frequencies simultaneously
Data Source
AI summary
A communication device and method are presented. The device is in a network of devices of different groups. The device contains a push-to-talk (PTT) button, a channel selector, and a keyboard containing hard or soft keys. The channel selector selects an initial frequency at which to receive and transmit, dependent on the group to which the device belongs. The device transmits when the PTT button is pressed. If a multiple PTT function is activated by software in the device, at least some of the keys are used to select a new transmission frequency. The device receives at the initial frequency independent of the transmission frequency. The multiple PTT function can be activated by a dedicated soft or hard key or a key on the keyboard that serves multiple functions. The frequency selection provided by the keys is dependent on the channel and the device group.