Company Filing History:
Years Active: 1976-1977
Title: The Innovations of Ronald Eldon Crochiere
Introduction
Ronald Eldon Crochiere is a notable inventor recognized for his contributions to digital communication technologies. He is based in Chatham, NJ, and has been awarded three patents throughout his career. His work primarily focuses on enhancing the quality of digital speech communication systems.
Latest Patents
One of Crochiere's latest patents is a digital speech communication system designed to minimize quantizing noise. This innovative arrangement partitions a speech signal into multiple nonuniformly related subbands, which are quantized based on perceptual criteria. This method significantly improves the quality of the coded signal compared to traditional full-band coding. The system employs 'integer-band' sampling to alias the signal effectively before coding, allowing for a more efficient reconstruction of the speech signal.
Another significant patent involves an interpolation-decimation circuit that increases or decreases the sampling rate of a digital signal by a factor of L/M. This circuit determines each output sample by multiplying previous input samples by a set of coefficients, which are stored in a specific sequence for efficient processing. The design includes a multistage decimator cascaded with a multistage interpolator, effectively functioning as a narrow-band FIR filter.
Career Highlights
Crochiere has made substantial contributions to the field of digital communications during his tenure at Bell Telephone Laboratories. His innovative approaches have paved the way for advancements in speech processing and digital signal processing technologies.
Collaborations
Throughout his career, Crochiere has collaborated with esteemed colleagues, including Lawrence Richard Rabiner and James L. Flanagan. These partnerships have further enriched his work and contributed to the development of groundbreaking technologies in the field.
Conclusion
Ronald Eldon Crochiere's innovative patents and contributions to digital communication systems have significantly impacted the industry. His work continues to influence advancements in speech processing technologies, showcasing the importance of innovation in enhancing communication.