Integrated SoC for Synchronized OSD Text and TTS Audio
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Solution Overview
Problem
Conventional display systems require separate SoCs for TTS and OSD functions, leading to increased cost and asynchrony between text message display and speech playback.
Innovation Solution
Integration of a TTS circuit with TTS function and an OSD circuit within a single SoC to control OSD of a text message, eliminating the need for additional SoCs and enabling synchronized text message display and speech playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an additional SoC having a TTS function is coupled to the exterior of a scaler SoC, then the TTS function can be provided, but the cost increases and asynchrony between text message display and speech playback occurs
Solution Approach 1:
The patent combines the TTS circuit and OSD circuit into a single integrated SoC chip. The TTS circuit includes a TTS engine and synthesis memory, while the OSD circuit handles on-screen display operations. This merging eliminates the need for separate external SoCs, reducing system complexity and cost while improving synchronization between text display and speech playback through shared memory access and coordinated control.
2Adaptability or versatility
If an additional SoC having a TTS function is coupled to the exterior of a scaler SoC, then the TTS function can be provided, but asynchrony between text message display and speech playback occurs
Solution Approach 1:
The patent combines the TTS circuit and OSD circuit into a single integrated SoC chip. The TTS circuit includes a TTS engine and synthesis memory, while the OSD circuit handles on-screen display operations. This merging eliminates the need for separate external SoCs, reducing system complexity and cost while improving synchronization between text display and speech playback through shared memory access and coordinated control.
3Adaptability or versatility
If separate SoCs are used for TTS and OSD functions, then each function can be independently implemented, but the device complexity and cost increase
Solution Approach 1:
The patent combines the TTS circuit and OSD circuit into a single integrated SoC chip. The TTS circuit includes a TTS engine and synthesis memory, while the OSD circuit handles on-screen display operations. This merging eliminates the need for separate external SoCs, reducing system complexity and cost while improving synchronization between text display and speech playback through shared memory access and coordinated control.
4Adaptability or versatility
If separate SoCs are used for TTS and OSD functions, then each function can be independently implemented, but the cost increases
Solution Approach 1:
The patent combines the TTS circuit and OSD circuit into a single integrated SoC chip. The TTS circuit includes a TTS engine and synthesis memory, while the OSD circuit handles on-screen display operations. This merging eliminates the need for separate external SoCs, reducing system complexity and cost while improving synchronization between text display and speech playback through shared memory access and coordinated control.
Data Source
AI summary
A system on a chip (SoC) includes an on-screen display (OSD) circuit, a memory control circuit, and an audio processor. The OSD circuit is arranged to control OSD of a text message. The memory control circuit is coupled to a memory, and is arranged to read a text-to-speech (TTS) data corresponding to the text message from the memory. The audio processor is coupled to the memory control circuit, and includes a TTS circuit, wherein the TTS circuit is arranged to: receive the TTS data from the memory control circuit, and generate an audio output according to at least the TTS data.