Data Device to Speech Service Bridge for Packet Networks
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Solution Overview
Problem
Legacy telephony service systems are limited by proprietary hardware, complex switching between PSTN and packet-based networks, non-standardized APIs, and inability of packet-based devices to access voice services and resources like speech recognition or text-to-speech processors.
Innovation Solution
A data device to speech service bridge is implemented, allowing packet-based devices to access voice services by using a data device communicator, command bridge, and voice service runtime integration, which maps commands to standardized protocols and establishes call sessions with speech recognition and text-to-speech resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If proprietary hardware hosts integrated voice response applications and voice services, then voice services can be provided, but device complexity increases and interoperability between diverse systems is inhibited
Solution Approach 1:
The patent introduces a media gateway as an intermediary component that sits between the PSTN and packet-based networks. This media gateway provides standardized interfaces and protocol conversion capabilities, allowing voice services to be accessed through diverse packet-based devices without requiring proprietary hardware in each device. The media gateway mediates the interaction between different systems, reducing device complexity while maintaining service reliability.
2Adaptability or versatility
If switching between PSTN and network components is implemented, then voice services can be accessed over packet-based networks, but system complexity increases due to protocol differences
Solution Approach 1:
The patent implements a universal media gateway that handles multiple protocol conversions and switching functions in a single platform. The media gateway supports both circuit-switched PSTN interfaces and packet-based network interfaces, providing multi-functional capability that reduces overall system complexity. By consolidating switching and protocol conversion functions into a universal gateway, the system achieves adaptability without proportionally increasing complexity.
3Ease of operation
If access to applications and services is tailored to vendor-specific APIs, then applications can access voice services, but adaptability decreases and interoperability is limited
Solution Approach 1:
The patent introduces a voice service runtime and command bridge as intermediary layers between applications and voice services. These intermediaries provide standardized, vendor-neutral interfaces that allow applications to access voice services without being tied to specific vendor APIs. The command bridge translates application requests into standardized protocols, enabling interoperability across diverse vendors while maintaining ease of application access.
4Ease of manufacture
If packet-based devices are used to access voice services, then device costs can be reduced, but the ability to interface with PSTN network and access voice resources is lost
Solution Approach 1:
The patent employs a media gateway as an intermediary that enables packet-based devices to access PSTN voice services without requiring the devices themselves to have PSTN interface capabilities. The media gateway handles the protocol conversion and PSTN interfacing, allowing packet-based devices to access voice resources through standardized network interfaces. This approach reduces device costs while maintaining adaptability through the intermediary gateway infrastructure.
Data Source
AI summary
The present invention provides a data device to speech service bridge. The bridge allows packet-based devices, such as, for example, the PDA and 2.5/3G cellular phone, to access voice services.