Wireless Terminal Ring-Back Tone Audio Path Segmentation
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Solution Overview
Problem
The existing ring-back tone service is limited by its reliance on mobile carriers for content provision, requiring a fixed monthly fee, restricting users to only carrier-approved content, and offering low-quality sound due to circuit-based transmission, with no option for users to set their own sound sources without repurchasing the same content.
Innovation Solution
A method and system allowing users to select and set their own ring-back tones by downloading sound sources from a predetermined server, using a wireless communication terminal to change the audio path to a media player for high-quality sound playback during calls, and enabling users to freely purchase and share content without carrier fees.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If circuit-based service is used to provide ring-back tone, then sound quality is maintained within voice call bandwidth, but high-quality sound source service cannot be provided
Solution Approach 1:
The patent separates the ring-back tone service from the traditional circuit-based voice service. The terminal device independently plays the ring-back tone through its own audio output module, rather than relying on the network to transmit audio through the circuit switch. This segmentation allows high-quality audio files to be played locally without being constrained by voice call bandwidth limitations.
Solution Approach 2:
The patent introduces a packet-based data transmission channel as an intermediary to deliver ring-back tone files from the server to the terminal device. This intermediary channel operates independently from the circuit-based voice service, enabling high-quality audio transmission through packet networks while maintaining compatibility with traditional voice call infrastructure.
2Reliability
If mobile carriers operate ring-back tone service through dedicated servers, then service reliability is ensured, but users must pay fixed monthly fee and cannot set own sound sources
Solution Approach 1:
The patent enables users to upload their own sound sources to the server and set them as ring-back tones. The terminal device can also directly play locally stored audio files as ring-back tones without requiring carrier server intervention. This self-service capability allows users to freely select and manage their own content while maintaining the service reliability framework.
Solution Approach 2:
The server is designed to support multiple functions: it can provide pre-stored ring-back tone files from content providers, accept user-uploaded sound sources, and deliver files to terminal devices through packet-based transmission. This multi-functional design maintains service reliability while greatly expanding content selection freedom for users.
3Device complexity
If all persons hear the set ring-back tone until call is connected, then carrier service is simplified, but user control over content playback is reduced
Solution Approach 1:
The patent makes the ring-back tone playback dynamic and controllable. The terminal device can play the ring-back tone through its own audio output module and can stop playback when the call is connected. Users have the flexibility to choose different audio files and control playback according to their preferences, while the system automatically manages the playback process during call establishment.
4Use of energy by moving object
If packet-based service is used for ring-back tone transmission, then communication fee is determined by packets transmitted, but path occupation reliability is reduced
Solution Approach 1:
The patent employs preliminary action by having the terminal device download and store the ring-back tone file in its local memory before the actual call takes place. The file can be downloaded in advance through packet-based transmission, and then played locally from stored memory during the call. This eliminates the need for real-time packet transmission during the call, ensuring reliable playback without depending on path occupation at the moment of calling.
Data Source
AI summary
Provided is a method for setting a ring-back tone played while a second wireless communication terminal attempts to make a call to a first wireless communication terminal. The first wireless communication terminal selects a sound source to be used as a ring-back tone, and selects the second wireless communication terminal in which the sound source is to be set. According to a request of the first wireless communication terminal, a message is transmitted to the second wireless communication terminal. The message is displayed on a screen of the second wireless communication terminal. The second wireless communication terminal downloads the sound source contained in the message or downloads the sound source from a pre-determined server connected to the second wireless communication terminal through a URL. The second wireless communication terminal sets the downloaded sound source to a ring-back tone played while the second wireless communication terminal attempts to make a call to the first wireless communication terminal.