Intermediary Device Civic Address Transmission via FSK
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Solution Overview
Problem
Providing an efficient means to convey a caller's location from a fixed wireless communication device to emergency services is challenging due to the high costs associated with maintaining and querying network databases in traditional landline telephony systems.
Innovation Solution
An intermediary device maintains and sends a civic address directly to an apparatus associated with a predefined number, such as a Public Safety Answering Point (PSAP), using Frequency Shift Keying (FSK) signals, even when the connected calling mechanism is in an on-hook state, thereby bypassing the need to query a network database.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a network database is maintained and queried to determine caller location, then location information can be provided, but the cost and complexity increase significantly
Solution Approach 1:
The intermediary device stores the civic address in advance before an emergency call is made. When the calling mechanism goes off-hook, the intermediary device proactively sends the FSK-encoded civic address to the PSAP, eliminating the need for real-time database queries during the emergency call.
Solution Approach 2:
The intermediary device creates and maintains a local copy of the civic address information that would otherwise need to be retrieved from a centralized network database. This local copy enables rapid transmission without database access delays or costs.
2Loss of information
If the intermediary device sends FSK signals after the calling mechanism goes on-hook, then location data can be transmitted, but the calling mechanism remains inactive
Solution Approach 1:
The intermediary device acts as a mediator between the calling mechanism and the PSAP. It monitors the calling mechanism's state independently and can initiate FSK signal transmission to the PSAP without requiring the calling mechanism to remain active or the caller to speak, ensuring location data is transmitted even when the calling mechanism goes on-hook.
3Reliability
If traditional landline telephony is used, then location can be determined via database query, but wireless service providers incur high costs
Solution Approach 1:
The intermediary device performs self-service by maintaining and transmitting its own civic address information autonomously. It monitors the calling mechanism's off-hook state and automatically sends FSK-encoded location data to the PSAP without requiring costly database queries from the wireless service provider's network infrastructure.
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
This solution reduces the cost and complexity of providing location information during emergency calls by allowing the intermediary device to store and transmit civic addresses directly, enhancing the efficiency and profitability of wireless service providers.
Implementation Method 1
sending frequency shift keying (FSK) signals to the wireless local loop for transmission, in turn, to the apparatus associated with the predefined number. The FSK signals preferably represent a civic address associated with the calling mechanism.
Data Source
AI summary
Methods and an intermediary device are disclosed for sending a civic address and other information from the intermediary device to an apparatus associated with a predefined number (such as Public Safety Answering Point). The civic address may include a street number, street name, street type, and postal mailing code, all of which may be associated with a wireless calling access line assigned to the intermediary device. A calling mechanism (e.g., a telephone) operating in an off-hook state initiates a communication with the apparatus. The intermediary device may enter the off-hook state in response to the calling mechanism entering the off-hook state. The intermediary device can continue to operate in the off-hook state so as to send the civic address to the apparatus (e.g., a PSAP) even if the calling mechanism switches to an on-hook state prior to the civic address being sent to the apparatus.