Ching-Hsien Liao

Title: Ching-Hsien Liao and Television Audio Detection Innovation.

Introduction

Ching-Hsien Liao is an inventor associated with Tainan, Taiwan, and Realtek Semiconductor Inc. Her patent work includes an apparatus and method for detecting television audio standards, addressing the challenge of supporting broadcast formats used in different countries.

Latest Patents

The available information lists 1 patent for Liao: “TV Audio Multi-Standard Detection Apparatus and Method.” The invention pre-records carrier bands for multiple audio broadcasting formats. A carrier calculation unit receives an intermediate-frequency signal and calculates carrier energy across the relevant frequency bands. A switch controller uses that energy and threshold analysis to identify the primary carrier and determine an effective carrier. It then compares the effective carrier with the stored carrier bands to select the appropriate audio broadcasting format. The design aims to let a single audio-decoding chip support broadcast systems in various countries.

Career Highlights

Liao’s listed patent reflects work on television audio processing and multi-standard detection. The invention’s approach combines carrier-energy calculations, threshold-based analysis, and comparison with stored carrier bands to identify a suitable audio format.

Collaborations

The provided information names Show-Hong Chen and Yi-Chang Tu as Liao’s coworkers. It does not specify whether they collaborated on this patent.

Conclusion

Ching-Hsien Liao’s listed invention focuses on enabling a single audio-decoding chip to identify and support television audio formats across different broadcast systems.