Subscriber Line Identification via Audible Transceiver Patterns
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Solution Overview
Problem
The challenge in telecommunications is identifying the correct subscriber line connected to a transceiver in a bundled cable, which can lead to communication issues due to the complexity of managing multiple lines and the need for two technicians during installation.
Innovation Solution
A method where the transceiver is selectively activated and deactivated to transmit a predefined audible frequency pattern, allowing a technician to identify the correct subscriber line by hearing the noise and silence pattern through a speaker, eliminating the need for multiple technicians and reducing installation burdens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple subscriber lines are bundled in a cable to facilitate installation and maintenance, then installation efficiency is improved, but identifying the correct subscriber line becomes difficult
Solution Approach 1:
The patent applies acoustic signal patterns (audible noise and silence sequences) to subscriber lines to enable identification. Different lines transmit distinct patterns that technicians can detect using a speaker and ear, allowing easy differentiation among bundled lines without physical disconnection or complex equipment.
Solution Approach 2:
The patent introduces a speaker as an intermediary device that converts electrical signals from subscriber lines into audible noise patterns. This mediator allows technicians to hear and identify specific lines without directly handling or disconnecting the lines, simplifying the identification process.
2Difficulty of detecting and measuring
If technicians use traditional tone transmission methods to identify subscriber lines, then line identification is enabled, but two technicians are required and the process becomes burdensome
Solution Approach 1:
The system enables a single technician to perform line identification independently by using the speaker to generate audible patterns directly at the customer premises. The technician can identify lines without coordinating with another technician at the central office, eliminating the need for disconnection/reconnection operations and communication coordination.
Solution Approach 2:
The patent replaces the mechanical process of physically disconnecting and reconnecting subscriber lines with an acoustic field-based identification method. Instead of manual line handling, the system uses audible noise patterns transmitted through the speaker to identify lines, reducing physical manipulation and operational complexity.
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 approach simplifies the identification of subscriber lines, reduces installation errors, and allows single-technician installations by using an audible signal pattern to determine the correct line connection, enhancing communication network configuration efficiency.
Implementation Method 1
the transceiver is selectively activated and deactivated causing it to transmit its normal frequency spectrum in a predefined pattern... The frequency spectrum includes frequencies audible to humans. Thus, the speaker produces sound capable of being heard by a human
Data Source
AI summary
In a system for identifying subscriber lines, an end of a subscriber line is coupled to and terminated by a transceiver of interest. The other end of the subscriber line is coupled to a speaker. The transceiver is then selectively activated and deactivated causing it to transmit its normal frequency spectrum in a predefined pattern. The frequency spectrum includes frequencies audible to humans. Thus, the speaker produces sound capable of being heard by a human, and the sound exhibits periods of noise followed by periods of silence. Indeed, the periods of noise and silence are in a pattern according to the activation/deactivation pattern of the transceiver. Thus, a user can identify the subscriber line that is coupled to the transceiver by identifying which of the lines is coupled to the speaker when the speaker emits noise and silence according to the predefined pattern.