This inventor holds 3 USPTO granted patents. Top assignees: Bell Telephone Laboratories, Georgia Tech Research Corporation, Hewlett-Packard Company. Active years: 1977-2000.
Company Filing History:
1 out of 2,714 
1 out of 2,187 
1 out of 9,639 
Years Active: 1977-2000
Title: The Innovations of Ronald William Schafer
Introduction
Ronald William Schafer is a notable inventor based in Atlanta, GA. He has made significant contributions to the fields of video compression and loudspeaker technology. With a total of 3 patents to his name, Schafer's work has had a lasting impact on the industry.
Latest Patents
One of Schafer's latest patents is a block-matching motion estimation technique for video compression. This method operates a data processing system to compress a first frame in an ordered sequence of image frames. The technique involves determining a displacement vector for at least one block in the second frame, which identifies a region in the third frame that approximates the block in the second frame. The method then uses these vectors to define a search region in a preceding frame, ultimately improving the efficiency of video compression.
Another significant patent is related to the time domain measurement of moving coil loudspeaker driver parameters. This novel method measures the Thiele-Small small-signal parameters of a moving-coil electromagnetic transducer driver. By analyzing the transient response of a loudspeaker voice coil circuit to a current step of excitation, Schafer's technique allows for the calculation of loudspeaker parameters through linear predictive analysis of the recorded data.
Career Highlights
Schafer has worked with prestigious companies such as Bell Telephone Laboratories and Hewlett-Packard Company. His experience in these organizations has contributed to his expertise in the field of technology and innovation.
Collaborations
Throughout his career, Schafer has collaborated with notable individuals, including Lawrence Richard Rabiner and Frederick Lee Kitson. These partnerships have further enriched his work and contributions to the industry.
Conclusion
Ronald William Schafer's innovative patents and career achievements highlight his significant role in advancing technology in video compression and loudspeaker systems. His contributions continue to influence the industry today.