Pei-Chen Chang

Title: Pei-Chen Chang: Innovator in Audio and Video Synchronization Technologies

Introduction

Pei-Chen Chang is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of audio and video technology, holding a total of 4 patents. His work focuses on enhancing the synchronization of audio and video data, which is crucial for modern multimedia applications.

Latest Patents

One of Pei-Chen Chang's latest inventions is a multiple output audio system. This system comprises a second input buffer that stores a second data stream output from a demodulation unit or a demultiplexing unit. It includes a second processing unit that receives and processes the second data stream to output a third data stream. Additionally, a data buffer receives the third data stream from the second processing unit, while a multiplexer has input terminals that receive a first audio signal and the third data stream, ultimately outputting an output data stream. A first processing unit then processes this output data stream to drive a first output device. Furthermore, the second processing unit features a second decoder that receives and decodes the second data stream, along with a second post-processing unit that processes the decoded second data stream to drive a second output device.

Another significant patent is a method and system for synchronizing audio and video data signals. This system is designed for optical discs and includes a demultiplexer that splits a data stream into audio and video data. The audio data contains embedded playback time information, while the video data has its own associated playback time information. The system also features an audio decoding block with fast forward and slow forward functionalities, as well as a video decoding block with similar capabilities. A decision block sends adjustment signals to either the video or audio decoding block to perform fast forward or slow forward operations.

Career Highlights

Pei-Chen Chang is currently employed at MediaTek Corporation, a leading global semiconductor company. His work at MediaTek has allowed him to innovate and develop technologies that enhance user experiences in audio and video playback.

Collaborations

Throughout his career, Pei-Chen has collaborated with talented individuals such as Tzueng-yau Lin and Kuang-Hui Hsu. These collaborations have contributed to the advancement of technologies in the multimedia sector.

Conclusion

Pei-Chen Chang's contributions to audio and video synchronization technologies have made