Po-Shu Lan

Title: Po-Shu Lan: Innovator in Audio Processing Technologies

Introduction

Po-Shu Lan is a notable inventor based in New Taipei, Taiwan. He has made significant contributions to the field of audio processing, holding three patents that showcase his innovative spirit and technical expertise. His work focuses on developing systems that enhance audio quality and reduce unwanted noise.

Latest Patents

One of Po-Shu Lan's latest patents is an audio processing system and method. This system includes an audio receiver and an audio processor device. The audio receiver features an audio interface, an absolute value converter unit, a framing unit, and a characteristic value detector unit. The audio interface receives an audio signal from an audio transceiver device. The absolute value converter unit takes the absolute value of the audio signal to output an absolute value audio signal. The framing unit divides the absolute value audio signal into multiple sub-frame signals, while the characteristic value detector unit detects the characteristic values of these sub-frame signals. The audio processor then processes the audio signal outputted by the audio transceiver device according to the characteristic values of the sub-frame signals.

Another significant patent is an active noise cancellation system. This system is designed to cancel noises within a predetermined bandwidth and includes an analog-to-digital converter, a programmable noise-cancellation module, a first interpolation filter, and a digital-to-analog converter. The analog-to-digital converter receives a first audio signal and converts it from an analog signal to a digital signal. The programmable noise-cancellation module processes the first audio signal to generate a noise cancellation signal. The first interpolation filter receives a second audio signal and filters it. The noise cancellation signal and the filtered second audio signal are then integrated by an adder to create a third audio signal, which is converted back to an analog signal by the digital-to-analog converter.

Career Highlights

Po-Shu Lan is currently employed at C-Media Electronics Inc., where he continues to innovate in audio technology. His work has significantly impacted the way audio systems are designed and implemented, particularly in consumer electronics.

Collaborations

Throughout his career, Po-Shu Lan has collaborated with talented individuals such as Chun-Hung Kuo and Chih-Ying Huang. These collaborations have fostered a creative environment that encourages the development of cutting-edge audio technologies.

Conclusion

Po-Shu Lan's contributions to audio processing technology through his patents demonstrate his