Company Filing History:
Years Active: 1984-1985
Title: Innovations by Inventor Mohamed A. Marouf
Introduction
Mohamed A. Marouf is a notable inventor based in Lisle, IL (US). He has made significant contributions to the field of digital communication technology. With a total of 5 patents to his name, Marouf has developed innovative methods and apparatuses that enhance the quality of digital conferencing.
Latest Patents
One of his latest patents is a "Method and apparatus for controlling signal level in a digital." This invention is designed for use in multiport digital conference arrangements. It allows for the summation of speech samples from selected speakers for distribution to conferees. The method controls the level of speech represented by information samples, ensuring that the speech level is equalized between speakers. This reduces the contrast in speech levels heard by conferees. Additionally, it includes a speech detector for each port and microprocessor-controlled switching hardware that adjusts the signal level represented by samples received on the ports to effect speaker selection. Gain coefficients for a port can also be incrementally adjusted over a predetermined period to avoid noticeable signal level changes during speaker selection.
Another significant patent is the "Arrangement for reducing clipping in a digital conference arrangement." This invention is utilized in multichannel time division multiplexed conference arrangements. It addresses the issue of speech that is often clipped when a conferee begins to speak. The arrangement features a delay unit that stores all speech samples from one time frame for a period longer than the processing time required to detect and determine whether to include speech samples from a new speaker. By first storing the samples and then summing them, any samples from a new speaker can be included in the output sample, effectively reducing speech clipping.
Career Highlights
Mohamed A. Marouf is currently employed at AT&T Bell Laboratories, where he continues to innovate in the field of digital communication. His work has had a profound impact on the way digital conferencing is conducted, improving the overall experience for users.
Collaborations
Throughout his career, Marouf has collaborated with notable colleagues, including Paul W. Vancil and Ann H. Bass. These collaborations have contributed to the development of his innovative patents and advancements in technology.
Conclusion
In summary, Mohamed A. Marouf is a distinguished inventor whose work in digital communication technology has led to significant advancements. His patents reflect a commitment to improving the quality of digital conferencing, making him a valuable contributor to the field.