This inventor holds 2 USPTO granted patents. Top assignee: Motorola Corporation. Active years: 2002-2004.
Location History:
- Dundas, AU (2002)
- West Pennant Hills, AU (2004)
Company Filing History:
Years Active: 2002-2004
Title: Ho Chuen Choi: Innovator in Speech Recognition Technology
Introduction
Ho Chuen Choi is a notable inventor based in West Pennant Hills, Australia. He has made significant contributions to the field of speech recognition technology, holding 2 patents that showcase his innovative approach to improving the accuracy and reliability of speech recognition systems.
Latest Patents
One of his latest patents is titled "Method for estimating a confidence measure for a speech recognition system." This method involves comparing an input speech signal with several predetermined models of possible speech signals. The best scores indicating the degree of similarity between the input speech signal and each of the predetermined models are utilized to determine a normalized variance. This variance serves as the Confidence Measure, which is then compared to a threshold value to ascertain whether the input speech signal has been accurately recognized. The threshold value is adjusted based on the Signal to Noise Ratio of the input speech signal and the number of predetermined models employed.
Another significant patent is the "Cohort model selection apparatus and method." This apparatus is designed for selecting a cohort model for use in a speaker verification system. It includes a model generator that determines a target speaker model from a speech sample collected from the target speaker. A cohort selector assesses the similarity value between each of a number of predetermined existing speaker models from a model pool and the target speaker model. It also evaluates the dissimilarity value between each of the existing speaker models and any previously selected cohort models. The existing speaker model that is most similar to the target speaker model, yet most dissimilar to previously chosen cohort models, is selected as another cohort model for the target speaker.
Career Highlights
Ho Chuen Choi is currently employed at Motorola Corporation, where he continues to develop innovative solutions in the realm of speech recognition technology. His work has significantly impacted the efficiency and effectiveness of voice-activated systems.
Collaborations
Throughout his career, Ho Chuen Choi has collaborated with talented individuals such as Yaxin Zhang and Jianming Song. These collaborations have fostered a creative environment that encourages the development of cutting-edge technologies.
Conclusion
Ho Chuen Choi's contributions to speech recognition technology through his patents and work at Motorola Corporation highlight his role as an influential inventor in this field. His innovative methods continue to advance the capabilities of speech recognition systems, making them more reliable and efficient.