Richard M Waltham

Title: The Innovations of Richard M Waltham

Introduction

Richard M Waltham is a notable inventor based in London, GB. He holds a total of 5 patents that showcase his contributions to technology and engineering. His work primarily focuses on advancements in digital systems and computed tomography.

Latest Patents

One of his latest patents is related to phase-locked loops. This invention describes a digital phase-locked loop that utilizes a binary overflowing accumulator as a numerically controlled oscillator. It features external compensation to eliminate frequency-dependent phase offset problems without requiring second-order filtering. The operation of the NCO adder begins with a value set by the center frequency control. Under the latching action of the latch clocked by the reference oscillator, it produces a linearly stepped output. The detection of the most-significant bit values results in a square wave at the output. The phase detector latch is employed for phase correction, while a comparator eliminates steady-state phase error.

Another significant patent involves a computed tomography apparatus with detector sensitivity correction. This invention pertains to a rotary fan beam computed tomography apparatus that uses recurrent relative displacement between the source and detectors for recalibration of detectors in chain-like sequences. The improvement includes locating at least one radiation transparent detector of high stability in front of the array. This detector is used to further correct the chain-corrected detector sensitivity values, enhancing the accuracy of the computed image matrix.

Career Highlights

Throughout his career, Richard M Waltham has worked with several companies, including EMI, LLC and Thorn EMI Plc. His experience in these organizations has contributed to his expertise in the field of technology and innovation.

Collaborations

Richard has collaborated with notable individuals such as Godfrey N Hounsfield and Daniel J Pisano, Jr. These partnerships have likely influenced his work and led to significant advancements in his projects.

Conclusion

Richard M Waltham's contributions to technology through his patents and collaborations highlight his innovative spirit and dedication to improving digital systems and imaging technologies. His work continues to impact the field significantly.