Company Filing History:
Years Active: 1978
Title: The Innovations of Donald B Wohlberg
Introduction
Donald B Wohlberg is a notable inventor based in Richmond, California. He is recognized for his contributions to the field of voice transmission technology. With a focus on adaptive digital delta modulation, Wohlberg has made significant strides in improving communication systems.
Latest Patents
Wohlberg holds a patent for an "Adaptive digital delta modulation for voice transmission." This innovative system periodically samples an input analog signal and generates a binary bit for each period. The logic level of the binary bit is determined by whether the sampled signal is greater or smaller than the previous sample's approximate signal. The decoding apparatus converts the stream of binary bits to approximate the analog signal by charging or discharging a capacitor integrator in predetermined variable steps. The system enhances step size recovery between the transmitter and receiver, ensuring a more accurate analog output signal.
Career Highlights
Wohlberg's career is marked by his work at Canadian Patents & Development Ltd. His expertise in adaptive delta modulation has positioned him as a key figure in the development of advanced voice transmission technologies. His innovative approach has contributed to the evolution of communication systems.
Collaborations
Throughout his career, Wohlberg has collaborated with notable colleagues, including David E Dodds and Andrzej M Sendyk. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Donald B Wohlberg's contributions to adaptive digital delta modulation have significantly impacted voice transmission technology. His innovative patent showcases his dedication to improving communication systems. Wohlberg's work continues to influence the field, making him a prominent figure in the world of inventions.