This inventor holds 3 USPTO granted patents. Top assignees: Seagate Technologies, Inc., Seagate Technology Incorporated, Other. Active years: 1995-2004.
Company Filing History:
1 out of 38 
1 out of 8,744 
1 out of 834,411 Years Active: 1995-2004
Title: Mark H Groo: Innovator in Clock Division and Data Management Technologies
Introduction
Mark H Groo is a notable inventor based in Scotts Valley, CA (US). He has made significant contributions to the fields of clock division and data management technologies. With a total of 3 patents to his name, Groo's work has had a lasting impact on the industry.
Latest Patents
One of Groo's latest patents is titled "Clock divider with error detection and reset capabilities." This invention involves an apparatus and method for generating a divided clock signal. A ring counter is utilized, which has a sequence of output states. During steady-state operation, one output state is set at a first logical level while the others are set at a second logical level at each successive clock transition. A gate network generates the divided clock signal based on these logical levels. An error detection circuit outputs a signal when the number of output states at the first logical level is not equal to one, and it synchronously resets the ring counter upon detecting an error condition. Additionally, a programmable processor can asynchronously reset the ring counter in response to the error detection signal.
Another significant patent is the "Apparatus and process for identifying sectors in a headerless sector data track." This invention addresses memory mediums with tracks arranged in sectors that lack header fields for identifying sectors or managing defects. The track management apparatus identifies the sector currently confronting a transducer, utilizing sector pulses or calculated information based on track data. To manage sector defects, a defect bank contains information about defective or spare sectors, allowing the system to halt data transfer or generate interrupt signals as necessary.
Career Highlights
Throughout his career, Mark H Groo has worked with various companies, including Seagate Technologies, Inc. His experience in the industry has allowed him to develop innovative solutions that address complex technical challenges.
Collaborations
Groo has collaborated with notable professionals in the field, including Prafulla Bollampalli Reddy and Jimmie Ray Shaver. These collaborations have contributed to the advancement of technology in his areas of expertise.
Conclusion
Mark H Groo is a distinguished inventor whose work in clock division and data management has led to significant advancements in technology. His patents reflect a commitment to innovation and problem-solving in the industry.