Change Liu

Title: Change Liu and His Speech Recognition Patent.

Introduction

Change Liu is an inventor based in Beijing, China, associated with Huawei Technologies Co., Limited. His patent work includes a speech recognition invention designed to let users add command words based on text files.

Latest Patents

Liu is credited with 1 patent: “Speech Recognition Method and Device.” The disclosed method extracts command words from a user-specified text file and checks them against an existing command-word library. When it identifies a new command word, the system generates a corresponding pronunciation dictionary and incorporates a new language model into its language-model library. It can then recognize incoming speech using an acoustic model, a pronunciation dictionary, and the updated language-model library. The patent description notes that command words gathered from online content are limited in number compared with frequently used words.

Career Highlights

Liu’s listed patent reflects work on adapting speech-recognition systems to new commands. By enabling command words to be added through text files, the method describes a way to update recognition resources for particular content and user needs.

Collaborations

Liu is associated with Huawei Technologies Co., Limited. His listed coworker is Deming Zhang.

Conclusion

Change Liu’s patent documents an approach to extending speech recognition with new command words, pronunciation resources, and language models.