Mohammad R Motamedi

Title: Innovations of Mohammad R Motamedi

Introduction

Mohammad R Motamedi is an accomplished inventor based in Palo Alto, California. He has made significant contributions to the field of coding and decoding through his innovative patent. His work is particularly relevant in the realm of data compression and transmission.

Latest Patents

Motamedi holds a patent for a "Syntax based arithmetic coder and decoder." This invention involves a coder/decoder that selects one of a set of look-up tables for encoding and decoding symbols. Each look-up table contains boundary values derived from an arithmetic coding model that partitions a first interval. The second interval contains an arithmetic code. During the encoding process, look-up table entries for a symbol value are converted to the scale of the second interval. The scaled values indicate a smaller interval that contains the arithmetic code. Code bits are generated when the most significant bits of the upper and lower scaled values are equal. During decoding, a code word, which is part of an arithmetic code, is normalized from the scale of the second interval to the scale for a look-up table and then compared to entries of the look-up table. When a segment containing the code word is identified, a decoded symbol value is known. A scaling circuit converts boundary values for the segment to the scale of the second interval and then changes the second interval. Identical most significant bits in the boundary values are shifted out of a register to prevent overflow during encoding and decoding. To increase the effective size of the register, the next to most significant bit can be removed while a counter counts the number of bits removed. This innovative approach enhances the efficiency of data encoding and decoding processes.

Career Highlights

Motamedi is currently associated with National Semiconductor Corporation, where he continues to apply his expertise in the field of electronics and data processing. His work has been instrumental in advancing technologies that rely on efficient data transmission.

Collaborations

Throughout his career, Motamedi has collaborated with notable colleagues, including Chang Y Choo and Xiaonong Ran. These partnerships have contributed to the development of innovative solutions in the field of coding and decoding.

Conclusion

Mohammad R Motamedi's contributions to the field of coding and decoding through his patent demonstrate his innovative spirit and technical expertise. His work continues to influence advancements in data processing technologies.