Company Filing History:
Years Active: 2006
Title: Innovations of Su-Hong Chou in Optical Disk Technology.
Introduction
Su-Hong Chou is a notable inventor based in Taipei Hsien, Taiwan. He has made significant contributions to the field of optical disk technology, holding 2 patents that enhance the performance and efficiency of optical disk drives. His work focuses on methods and devices that improve the control of spindle rotation and clock generation in optical storage devices.
Latest Patents
One of his latest patents is titled "Method and device for controlling the rotating speed of a spindle of an optical disk drive through a wobble signal, an EEFS signal and an ESFS signal." This invention includes a frequency detector, two phase detectors, a frequency divider, a low pass filter, a switch circuit, and a drive circuit. The method utilizes a wobble signal, an encoder EFM frame synchronization (EEFS) signal, an encoder subcode frame synchronization (ESFS) signal, and other related signals to generate five control signals. These signals are crucial for controlling the rotation speed of a motor connected to the spindle of the optical disk drive. By limiting the phase difference between the Absolute Time in Pre-groove (ATIP) sync and the ESFS to a predetermined value, the method enhances the update rate and writing efficiency.
Another significant patent is "Method and device for generating a write clock of a constant angular velocity optical disk device." This invention describes a method for generating a write clock for a constant angular velocity compact storage device. The device includes a counter that generates a count number by referencing a wobble signal and a phase detector that produces an adjustment value by comparing the phase shift between an ATIP synchronization signal and an encoded subcode frame synchronization signal. The rectification value derived from these components is used to generate a reference write clock, which modifies the encoded subcode frame synchronization signal. If the phase shift is smaller than a predetermined value, the reference write clock becomes the write clock utilized by the compact storage device.
Career Highlights
Su-Hong Chou is currently employed at Via Technologies, Inc., where he continues to innovate in the field of optical disk technology. His work has been instrumental in advancing the capabilities of optical storage devices, making them more efficient and reliable.
Collaborations
He collaborates with Chih-Yang Liaw, a talented woman in the field, contributing to the development of
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