This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignees: Stmicroelectronics Asia Pacific Pte Limited, Stmicroelectronics Gmbh. Active years: 2004-2010.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
4 out of 469 
1 out of 2,891 
Years Active: 2004-2010
Title: Innovations of Hin Sing Fong
Introduction
Hin Sing Fong is a notable inventor based in Singapore, known for his contributions to the field of motor control technologies. He holds a total of 5 patents, showcasing his innovative approach to engineering challenges. His work primarily focuses on enhancing the performance and reliability of voice coil motors and data-storage devices.
Latest Patents
One of his latest patents is titled "Continuous mode velocity control of voice coil motor." This invention presents a method for controlling the velocity of a voice coil motor (VCM) by sensing a voltage difference between the VCM and a sense resistor. The invention includes a velocity control loop (VCL) that drives the motor based on this voltage difference. Additionally, it features a control loop circuit that incorporates a current output connected to the VCM, which produces a back electromagnetic field (BEMF) voltage. The circuit also includes a sense resistor connected to the BEMF output and a BEMF resistive network comprising two resistors.
Another significant patent is "Method and apparatus for controlling a disk drive under a power loss condition." This invention outlines a method for controlling a motorized data-storage device by extracting energy from a spindle motor to drive a positioning motor and other components during a power failure. In normal operation, a disk is rotated at a constant velocity by a spindle motor, while a read/write head is moved by a voice-coil motor. In the event of power loss, energy is redirected from the spindle motor to ensure the head can be safely moved away from the disk.
Career Highlights
Hin Sing Fong has worked with prominent companies in the technology sector, including STMicroelectronics Asia Pacific Pte Limited and STMicroelectronics GmbH. His experience in these organizations has contributed to his expertise in motor control and data storage technologies.
Collaborations
Throughout his career, Hin has collaborated with talented professionals, including Ravishanker Krishnamoorthy and Giorgio Pedrazzini. These collaborations have likely enriched his work and led to innovative solutions in his field.
Conclusion
Hin Sing Fong's contributions to motor control technologies and data-storage devices highlight his innovative spirit and technical expertise. His patents reflect a commitment to advancing engineering solutions that enhance device performance and reliability.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile