Location History:
- Croton-on-Hudson, NY (US) (1976)
- Haifa, IL (1984 - 1996)
Company Filing History:
4 out of 9,638 
2 out of 1,032 
1 out of 156 Years Active: 1976-1996
Title: The Innovations of Abraham Lempel
Introduction
Abraham Lempel is a notable inventor recognized for his contributions to data compression technologies. He is based in Haifa, Israel, and holds a total of eight patents. His work has significantly impacted the field of data storage and transmission, particularly in enhancing the efficiency of data handling.
Latest Patents
Lempel's latest patents include a method and apparatus for compressing and decompressing short blocks of data. This innovative scheme is designed for the compression of large sets of short blocks of data for storage in mediums such as read-only memory. Applications of this technology include the compression of fonts for printers and ROM disks in portable PCs, which require random access to individual blocks and fast, real-time decompression. The method employs an asymmetrical three-stage approach, where the first stage focuses on training and optimizing a set of data blocks, the second stage implements data compression, and the third stage handles data decompression.
Another significant patent involves compression using small dictionaries with applications to network packets. This invention features a dictionary initialization scheme that adapts to changes in the type and structure of input data. By minimizing the number of data entries used to represent single characters, the compression ratio is enhanced. The method also incorporates a type of run-length encoding within the LZ methodology, which takes advantage of the redundant structure in the compressed stream. This innovative approach is particularly useful for transmitting network packets.
Career Highlights
Throughout his career, Abraham Lempel has worked with prominent companies such as Hewlett-Packard Company and Sperry Corporation. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in data compression technologies.
Collaborations
Lempel has collaborated with notable individuals in the field, including Gadiel Seroussi and Martin Cohn. These partnerships have fostered innovation and the development of cutting-edge technologies in data handling.
Conclusion
Abraham Lempel's contributions to data compression have made a lasting impact on the industry. His innovative patents and collaborations highlight his role as a leading inventor in the field. His work continues to influence how data is stored and transmitted efficiently.