Company Filing History:
1 out of 26 
1 out of 2,714 
Years Active: 1979-1987
Title: Noble E Wickliff: Innovator in Telecommunications
Introduction
Noble E Wickliff is a notable inventor based in Indianapolis, IN (US). He has made significant contributions to the field of telecommunications, holding a total of 2 patents. His work has focused on enhancing communication technologies, particularly in the areas of voice-switching and insulation testing.
Latest Patents
Wickliff's latest patents include a voice-switched telephone circuit with a center idle state. This invention improves bi-directional gain control in loudspeaking telephones, enhancing the natural quality of interactive conversation. The voice-switched telephone comprises a transmit channel with a microphone and a three-state amplifier, a receiver channel with a three-state amplifier and a loudspeaker, and a hybrid circuit connecting both channels to a two-wire telephone line. The innovation features independent signal level detecting circuits for both channels, allowing for dynamic amplification adjustments based on signal energy levels.
Another significant patent is a high voltage breakdown test circuit for insulation testing. This invention is designed to test insulation resistance within electrical devices while ensuring operator safety. The system allows a fixed amount of nonlethal energy into the test circuit, activating only during actual tests. It includes indicator means that provide a quick visual indication of the results of insulation resistance tests.
Career Highlights
Wickliff has had a distinguished career, working with prominent companies such as American Telephone and Telegraph Company, AT&T Information Systems, and Bell Telephone Laboratories. His experience in these organizations has contributed to his expertise in telecommunications and electrical engineering.
Collaborations
Throughout his career, Wickliff has collaborated with notable individuals, including Donald R Means and Robert C True. These partnerships have likely influenced his innovative approaches and contributed to his success as an inventor.
Conclusion
Noble E Wickliff's contributions to telecommunications through his patents and career achievements highlight his role as a significant innovator in the field. His work continues to impact the way we communicate today.