Cong Liu

This inventor holds 8 USPTO granted patents and 1 EPO patent. Top assignees: Mediatek Singapore Pte. Ltd., Iflytek Co., Ltd.. Active years: 2014-2025.

USPTO Granted Patents = 8

% Patents Active = 100.0

EPO Patents = 1 (Patent Applications = 1)

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 3(Granted Patents)

Company Filing History:

5 out of 980

Mediatek Singapore Pte. Ltd.

Years Active: 2014-2025

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12500590 - Phase-locked loop circuit (2025-12-16),

2. 12308028 - Speech recognition method, apparatus and device, and storage medium (2025-05-20),

3. 12143109 - Device for correcting duty cycle and method for correcting duty cycle (2024-11-12),

4. 11508366 - Whispering voice recovery method, apparatus and device, and readable storage medium (2022-11-22),

5. 10949701 - Method, apparatus and storage medium for recognizing character (2021-03-16),

6. 8730080 - Analog-to-digital converters and pipeline analog-to-digital converters (2014-05-20),

7. 8723714 - Multiplying digital-to-analog converters and pipeline analog-to-digital converter using the same (2014-05-13),

8. 8630158 - Method for reducing a number of input terminals of an automatic power control circuit, and associated automatic power control circuit (2014-01-14),

Title: Cong Liu: Innovator in Circuit Design and Speech Recognition

Introduction

Cong Liu is a prominent inventor based in Anhui, China. He has made significant contributions to the fields of circuit design and speech recognition technology. With a total of 8 patents to his name, Liu's work showcases his innovative approach to solving complex engineering problems.

Latest Patents

One of Liu's latest patents is a phase-locked loop circuit. This PLL circuit generates an output signal with a specific frequency and includes a voltage-to-current conversion circuit, a frequency compensation circuit, and an ICO. The voltage-to-current conversion circuit generates a first control current based on a control voltage, which is derived from a reference signal and a feedback signal from the output signal. The frequency compensation circuit produces a second control current based on the control voltage. The ICO then generates the output signal based on an oscillation current, which is the sum of the first and second control currents. Notably, if the frequency compensation circuit detects that the control voltage is outside a predetermined range, the second control current is adjusted to be negatively correlated with the output frequency.

Another significant patent involves a speech recognition method, apparatus, and device, along with a storage medium. This method includes acquiring speech to be recognized and a configured hot word library. It determines an audio-related feature for the current decoding time and identifies a hot word-related feature from the hot word library. Finally, it establishes a recognition result based on both features at the current decoding time.

Career Highlights

Cong Liu has worked with notable companies such as MediaTek Singapore Pte. Ltd. and iFlytek Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to cutting-edge technologies in the industry.

Collaborations

Liu has collaborated with talented individuals, including Qingfeng Liu and Kun Lan. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Cong Liu is a distinguished inventor whose work in circuit design and speech recognition continues to impact the technology landscape. His innovative patents reflect his dedication to advancing engineering solutions.