Company Filing History:
Years Active: 1977-1994
Title: The Innovations of Frederick A. Rosebrock
Introduction
Frederick A. Rosebrock is a notable inventor based in Greenfield, Indiana, known for his contributions to telecommunications technology. With a total of four patents to his name, Rosebrock has made significant advancements in the design and functionality of telephone handsets and microphone assemblies.
Latest Patents
One of his latest patents is a coupling apparatus for telephone handsets. This innovative device features a handset-coupling cradle designed to accommodate various handset styles. It includes a dome for locating the earpiece and sound ports for the mouthpiece. An inductive sensor within the dome responds to electromagnetic fields generated by the handset receiver, eliminating the need for close coupling. Additionally, a low acoustic impedance loudspeaker is mounted beneath the sound ports to couple signals to the handset's microphone without requiring close proximity.
Another significant patent is the directional microphone assembly. This assembly is constructed from a first-order-gradient microphone element enclosed in a resilient, acoustically-opaque housing. The design includes acoustically-transparent channels that communicate sound pressure to the diaphragm, enhancing sensitivity and directivity. The assembly can be embedded within sound-input equipment, ensuring a seamless integration with the exterior surface.
Career Highlights
Frederick A. Rosebrock has had a distinguished career, working with prestigious organizations such as AT&T Bell Laboratories and Bell Telephone Laboratories. His work in these companies has contributed to the development of advanced telecommunications technologies.
Collaborations
Throughout his career, Rosebrock has collaborated with notable individuals, including John C. Baumhauer, Jr. and Jeffrey Phillip McAteer. These collaborations have further enriched his contributions to the field of telecommunications.
Conclusion
Frederick A. Rosebrock's innovative patents and career achievements highlight his significant impact on telecommunications technology. His work continues to influence the design and functionality of communication devices today.
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.