Ultra High Resolution CMOS APS Camera

Period of Performance: 02/17/1998 - 02/17/2000


Phase 2 SBIR

Recipient Firm

Photobit Corp.
135 N. Los Robles Avenue, 7th Floor
Pasadena, CA 91101
Principal Investigator


In Phase I, the technical feasibility of a 2Kx2K active pixel sensor capable of operating at 200 frames/sec was established. The imager includes on-chip analog-to-digital converters (ADC) and high speed digital outputs. a novel column parallel ADC circuit was developed to enable 10-bit operation at the full frame rate. The high speed digital output circuits were designed to interface with commercially available high speed memories. The circuits were implemented in two test chips which were submitted for fabrication. A prototype camera system was designed based on a modular memory structure. The camera system was found to be greatly simplified by a topological division of the sensor into an array of 32 panels, each mapped onto its own memory module. In Phase II, the large format sensor will be implemented and characterized. A prototype camera will be implemented and a PC based interface will be developed for the display/archiving of the data stored in the camera's memory array. The results of the project will be a digital camera system with 2Kx2K resolution, 200Hz frame rate, and internal frame memory. BENEFITS: There is enormous potential of this technology to commercial application. The ultrahigh resolution, ultrahigh speed sensor proposed will greatly extend the capabilities of electronic imaging to areas which have previously been the exclusive domain of chemical photography. A few of the major applications include computerized animation, sports training and rehabilitation, biomechancis research, fire safety systems, medical diagnostics, HDTY and digital motion picture cameras.