Company Filing History:
2 out of 6 
1 out of 832,891 Years Active: 2002-2009
Title: Dumitru Gruia: Innovator in Telecommunications
Introduction
Dumitru Gruia is a notable inventor based in San Ramon, CA, who has made significant contributions to the field of telecommunications. With a total of 3 patents to his name, Gruia has developed innovative solutions that enhance the efficiency and reliability of telecom networks.
Latest Patents
One of Gruia's latest patents is a system and method for synchronizing telecom-related clocks across an unsynchronized point-to-point network connection. This invention utilizes downstream data timed with a high-frequency transmission clock to transfer timing information from a central telecom-based clock at one network node to another. The exemplary embodiment of this system operates over an Ethernet-based connection in accordance with the Gigabit Ethernet standard. The timing information is extracted at the second network node by recovering the high-frequency transmission clock, which is then used to derive a reference clock synchronized with the central telecom-based clock. This reference clock generates one or more telecom-related clocks for the second network node.
Another significant patent by Gruia involves a point-to-multipoint passive optical network that utilizes variable-length packets. This network transmits downstream data from an optical line terminal (OLT) to multiple optical network units (ONUs) in variable-length packets, while also allowing upstream data transmission from the ONUs to the OLT. The system employs time division multiplexing to avoid transmission collisions, and the packets are formatted according to IEEE 802.3 standards.
Career Highlights
Throughout his career, Dumitru Gruia has worked with various companies, including Alloptic, Inc. His work has focused on advancing telecommunications technology, particularly in the areas of network synchronization and data transmission.
Collaborations
Gruia has collaborated with notable professionals in the field, including Thaddeus Jude Dudziak and Joseph G DeCarolis. These collaborations have contributed to the development of innovative solutions in telecommunications.
Conclusion
Dumitru Gruia's contributions to telecommunications through his patents and collaborations highlight his role as an influential inventor in the industry. His work continues to impact the efficiency and reliability of telecom networks.