Company Filing History:

19 out of 1,231

International Rectifier Corporation

patents

3 out of 51,886

General Electric Company

patents

Years Active: 2003-2010

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22 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7800333 - Audible noise reduction for single current shunt platform (2010-09-21),

2. 7652441 - Method and system for starting a sensorless motor (2010-01-26),

3. 7602139 - Signal conditioning apparatus and method for determination of permanent magnet motor rotor position (2009-10-13),

4. 7592770 - Parking control technique for permanent magnet motor drives with sinusoidal BEMF (2009-09-22),

5. 7405528 - Global closed loop control system with DV/DT control and EMI/switching loss reduction (2008-07-29),

6. 7348758 - Audible noise reduction for single current shunt platform (2008-03-25),

7. 7299708 - Rotor angle estimation for permanent magnet synchronous motor drive (2007-11-27),

8. 7274241 - Global closed loop control system with DV/DT control and EMI/switching loss reduction (2007-09-25),

9. 7239103 - Synchronous motor startup lock detection circuit and method (2007-07-03),

10. 7230403 - System and method for elimination of DC offset feedback in AC drives (2007-06-12),

11. 7161375 - Phase-loss detection for rotating field machine (2007-01-09),

12. 7102327 - Motor current reconstruction via DC bus current measurement (2006-09-05),

13. 7066034 - Start-up method and system for permanent magnet synchronous motor drive (2006-06-27),

14. 7061195 - Global closed loop control system with dv/dt control and EMI/switching loss reduction (2006-06-13),

15. 6979967 - Efficiency optimization control for permanent magnet motor drive (2005-12-27),

Title: **Eddy Ying Yin Ho: A Pioneer in Noise Reduction Technologies**

Introduction

Eddy Ying Yin Ho is an accomplished inventor based in Torrance, CA, who has made significant contributions to the field of motor drive systems. With an impressive portfolio of 22 patents, Ho has established himself as a key innovator in technologies aimed at enhancing motor efficiency and reducing unwanted noise.

Latest Patents

Ho's latest patents highlight his commitment to advancing motor technology. One of his notable inventions is a method for reducing audible motor noise in a motor drive. This innovative approach involves utilizing a PWM (Pulse Width Modulation) space vector modulator to optimize the phase currents of a motor by sampling the DC link current efficiently. By determining the motor's speed and comparing it to a preset threshold, Ho's method enables a reduction in audible noise when the motor operates below this threshold.

Another significant patent by Ho is a system designed for starting a sensorless motor. This motor drive system features a catch start sequencer that robustly activates the motor even if the rotor is already rotating in either direction. This innovative system allows for accurate tracking of rotor position and adjusts the motor's speed accordingly, ensuring a smooth transition to forward rotation.

Career Highlights

Eddy Ho has gained valuable experience in renowned companies such as International Rectifier Corporation and General Electric Company, where he applied his expertise in electrical engineering and motor technologies. His work in these reputable organizations has played a critical role in shaping his innovation strategies and contributed to his wealth of knowledge in the field.

Collaborations

Throughout his career, Ho has collaborated with fellow innovators such as Yong Li and Jun Honda. Their collective expertise not only propelled their individual projects forward but also fostered a culture of collaboration and shared ideas in the development of cutting-edge motor technologies.

Conclusion

Eddy Ying Yin Ho's contributions to the realm of motor drive systems and noise reduction reflect his dedication to innovation and excellence. With numerous patents to his name, his work is influential in improving the efficiency and functionality of motor systems, making him a respected figure in the technology landscape. As he continues to advance his research and development efforts, the industry looks forward to further innovations from this prolific inventor.

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1 patent (EPO):

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