This inventor holds 4 USPTO granted patents. Top assignee: Analog Devices,inc.. Active years: 2002-2005.
Location History:
- Dooradoyle, IE (2002 - 2004)
- Limerick, IE (2004 - 2005)
Company Filing History:
Years Active: 2002-2005
Title: Innovations of John Patrick Purcell
Introduction
John Patrick Purcell is a notable inventor based in Limerick, Ireland. He has made significant contributions to the field of digital video processing and multi-channel circuits. With a total of 4 patents to his name, Purcell's work has advanced the technology used in digital signal processing.
Latest Patents
One of Purcell's latest patents is a method and processor for processing two digital video signals clocked by respective clock signals of identical frequency but with a constant phase shift therebetween. This innovation allows for the effective interfacing of standard definition and progressive scan digital video signals with a processing circuit. The design ensures that the signals are clocked efficiently into registers, optimizing the processing of video data.
Another significant patent involves a multi-channel circuit that comprises three channels, each equipped with a current steering digital-to-analog converter (DAC). This invention minimizes crosstalk between the respective DACs, enhancing the quality of the analog signal developed from digital input. The use of cascode devices in the design prevents capacitive feedthrough, further improving signal integrity.
Career Highlights
Purcell is currently employed at Analog Devices, Inc., where he continues to innovate in the field of electronics. His work has been instrumental in developing advanced technologies that are widely used in various applications.
Collaborations
Throughout his career, Purcell has collaborated with notable colleagues, including Anthony Gerard Scanlan and Vincent James Troy. These partnerships have contributed to the successful development of his patented technologies.
Conclusion
John Patrick Purcell's contributions to digital video processing and multi-channel circuits highlight his role as a leading inventor in the field. His innovative patents reflect a commitment to advancing technology and improving signal processing methods.