Guy R Macheboeuf

Title: The Innovations of Guy R Macheboeuf

Introduction

Guy R Macheboeuf is a notable inventor based in Vitry-sur-Seine, France. He has made significant contributions to the field of video technology, holding a total of five patents. His work primarily focuses on devices that enhance video signal processing, particularly in television production environments.

Latest Patents

One of Macheboeuf's latest patents is a video signal mixer device. This innovative mixer is designed for use in TV production control rooms and is capable of mixing incoming video signals of PAL, NTSC, or MAC standards. To address differences in video signal propagation time, the device suppresses the known video grid and utilizes a grid with a narrower bandwidth. This allows for selective control of the incoming video signals through analog multipliers. The chopping signals, derived from operator circuits, ensure amplitude complementarity between two predetermined levels, regardless of the selected dissolves and effects. Additionally, a proportion of a black image signal is mixed during a black fade or darkening effect in the resultant image.

Another significant patent is a system for superimposing multiple television pictures. This system includes a video mixer with two variable gain amplifying circuits that receive two input picture signals. An adding circuit mixes the amplified signals into a resulting picture signal. The improvement in this system lies in the derivation of a single gain control signal based on a linear combination of the two input signals. This ensures that the resulting signal maintains the desired peak-to-peak amplitude.

Career Highlights

Throughout his career, Guy R Macheboeuf has worked with prominent companies in the broadcasting industry. He has been associated with Telediffusion de France and Établissement Public Telediffusion de France. His experience in these organizations has contributed to his expertise in video technology and signal processing.

Collaborations

Macheboeuf has collaborated with various professionals in his field, including Lucien F Mignot. Their joint efforts have likely led to advancements in video technology and innovations in signal processing.

Conclusion

Guy R Macheboeuf's contributions to video technology through his patents and career experiences highlight his role as an influential inventor. His innovative solutions continue to impact the television production industry, showcasing the importance of advancements in video signal processing.