Company Filing History:
6 out of 258 
5 out of 200 
2 out of 122 Years Active: 1977-1987
Title: Innovations by Tom L Blackburn in Communication Systems
Introduction
Tom L Blackburn is a notable inventor based in San Jose, California, who has made significant contributions to the field of communication systems. With a total of 15 patents to his name, Blackburn's innovations have addressed critical issues in subscriber communication systems, enhancing the reliability and efficiency of these technologies.
Latest Patents
Among Blackburn's latest inventions, he has developed a method for locating faults in a carrier subscriber communication system. This method and apparatus utilize out-of-band pilot signals to identify faults within a subscriber carrier telephone system. The system comprises multiple cables and repeaters that are alternately connected in series between carrier equipment at a central office location and subscriber stations. The equipment at the office transmits a selected number of test pulses with a test frequency that falls between the transmitted and received channel and pilot frequencies. These pulses are detected at the first repeater and counted. A microprocessor responds to the count of test pulses, initiating associated tests on the cable and/or repeater, or retransmitting test pulses onto the next cable for designated tests. The results of these tests are communicated back to the office equipment as reply pulses with frequencies below the lowest channel frequency.
Career Highlights
Throughout his career, Tom L Blackburn has worked with reputable organizations such as GTE Automatic Electric Laboratories Incorporated and GTE Communication Systems Corporation. His experiences in these roles have undoubtedly contributed to his innovative mindset and the development of his patented technologies.
Collaborations
In conjunction with his endeavors, Blackburn has collaborated with distinguished colleagues, including Otto G Wisotzky and David J Farrell. These collaborations illustrate the collaborative spirit that is often essential in driving technological advancements and innovations.
Conclusion
Tom L Blackburn stands out as a significant figure in the realm of communication system innovations. His 15 patents reflect his dedication to solving complex problems within the field and enhancing the functionality of communication systems. Through his continued efforts, Blackburn not only contributes to technological advancements but also serves as an inspiration for future inventors aiming to innovate in the realm of communication technologies.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.