Ching-Yih Tseng

Title: Innovations of Ching-Yih Tseng

Introduction

Ching-Yih Tseng is an accomplished inventor based in Milpitas, CA (US). He holds a total of 2 patents that showcase his contributions to the field of communications systems. His work focuses on enhancing the efficiency and effectiveness of signal detection and processing.

Latest Patents

One of his latest patents is titled "Apparatus and methods for maximum likelihood symbol detection in communications systems." This invention discloses apparatus and methods for detecting transmit symbols from the receiving waveform samples at the receiver side for communications systems. The receiving waveform samples are corrupted by channel and noise effects, and the detection is carried out with a maximum likelihood optimality criterion. This invention utilizes a successive linear constraint exchange scheme that formulates a sequence of linearly constrained minimization subproblems to allow the solutions to these subproblems, combined with certain quantization and mapping operations, to converge to the optimal maximum likelihood estimate. This invention is applicable to any digitally modulated communications systems, including but not limited to Multiple Input Multiple Output (MIMO) communications systems.

Another significant patent is the "Low complexity frequency selective IQ mismatch digital RX balancer and TX inverse balancer for non-ideal RF front-end." This system is designed to reduce a mismatch between an in-phase (I) signal and a quadrature phase (Q) signal. The system includes a phase compensation block comprising an infinite impulse response (IIR) filter configured to reduce a first portion of a mismatch between an I signal and a Q signal, wherein the first portion includes frequency selective phase mismatch. The system further includes a gain compensation block comprising a finite impulse response (FIR) filter configured to reduce a second portion of the mismatch, wherein the second portion includes frequency selective gain mismatch. The phase compensation block and the gain compensation block are calibrated at least in part based on a loopback signal, wherein the loopback signal is routed from a transmitting portion of a radio frequency (RF) circuitry back to a receiving portion of the RF circuitry.

Career Highlights

Ching-Yih Tseng has worked with notable companies, including Montage Technology (Shanghai) Co., Ltd. His experience in the industry has allowed him to develop innovative solutions that address complex challenges in communications technology.

Collaborations

He has collaborated with various professionals, including his coworker Wen-Sheng Cheng