Location History:
- Poughkeepsie, NY (US) (1977)
- San Jose, CA (US) (1993 - 1996)
Company Filing History:
Years Active: 1977-1996
Title: Innovations of Robert A. Rutledge
Introduction
Robert A. Rutledge is a notable inventor based in San Jose, CA, who has made significant contributions to the field of digital signal processing. With a total of 8 patents to his name, Rutledge has developed innovative technologies that enhance data detection and synchronization in coded data channels.
Latest Patents
One of Rutledge's latest patents is titled "Digital timing recovery method and apparatus for a coded data channel." This invention focuses on a digital timing recovery circuit that allows for rapid acquisition and synchronization of sampling clock phase in a data playback signal processing channel. The circuit samples the filtered playback signal in a (1,7)ML coded playback channel at a rate of one sample per bit window. The digitized sample values are then processed using a (1,7)ML decoding procedure to produce decoded bits. The digital timing recovery circuit utilizes digitized sample values to control the sampling clock phase by computing a digital phase error signal (PES). This PES is a constant function of phase error, independent of the data pattern, and relies solely on adjacent samples surrounding a peak signal value. The side-samples contain maximal timing information, ensuring rapid acquisition and convergence of the sampling clock phase.
Another significant patent by Rutledge is "Setting optimal boundary thresholds in a decoder for coded signal." This invention aims to improve data detection reliability in a coded maximum likelihood signal processing channel. It employs two counters to track the number of times actual values of linear functions of digital sample values are within a specified range of a decision boundary. The boundary is adjusted based on the difference count between the two counters, enhancing the accuracy of data detection in coded sequences.
Career Highlights
Robert A. Rutledge is currently employed at International Business Machines Corporation (IBM), where he continues to innovate and contribute to advancements in technology. His work has had a profound impact on the efficiency and reliability of data processing systems.
Collaborations
Rutledge has collaborated with notable colleagues, including Arvind M. Patel and Bum Suck So, further enriching his contributions to the field.
Conclusion
Robert A. Rutledge's innovative work in digital signal processing has led to significant advancements in data detection and synchronization technologies. His contributions continue to influence the industry and pave the way for future innovations.
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