Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2005-04-26
2005-04-26
Luu, Thanh X. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C250S208200, C250S2140RC, C382S299000, C382S300000
Reexamination Certificate
active
06884982
ABSTRACT:
An electronic imager includes a detector array, a plurality of processing circuits, each responsive to an output signal from a respective detector element of the array and to a determination that signal coupling in general or charge sharing in particular occurred. The imager further includes a shared channel circuit coupled to at least two processing circuits for receiving an output signal from the processing circuits in response to a determination that signal coupling has occurred and for generating an output signal in response to the received signals. The shared channel circuit further directs the output signal to an image sub-pixel, wherein a plurality of sub-pixels are associated with each radiation sensitive element.
REFERENCES:
patent: 4710817 (1987-12-01), Ando
patent: 4979221 (1990-12-01), Perryman et al.
patent: 5754690 (1998-05-01), Jackson et al.
patent: 5812690 (1998-09-01), Fordham
patent: 6329658 (2001-12-01), Mestais et al.
patent: 0 637 759 (1995-02-01), None
patent: WO 0127656 (2001-04-01), None
Alderighi et al. Implementing Photon Event Recognition Algorithms on a 3D-Flow System, Algorithms and Architectures for Parallel Processing. 1995. ICAPP 95. IEEE First ICA/sup 3/PP. IEEE First International Conference on ,vol. 2, Apr. 19-21, 1995, Pages.*
Pivovaroff et al. Measurement of the Subpixel Structure of AXAF CCD's, IEEE Transactions on Nuclear Science, vol. 45, No. 2, Apr. 1998.*
Yoshita et al. Improvement of the Position Resolution of the CCD for X-Ray Use. IEEE Transactions on Nuclear Science, vol. 46, No. 2, Apr. 1999.*
Alderighi et al., Evidence: an FPGA-based system for photon Event IDENtification and Centroiding. Field-Programmable Custom Computing Machines, 2000 IEEE Symposium on , Apr. 17-19, 2000, pp. 259-266.*
Llopart et al., “Medipix2, a 64k pixel read out chip with 55 mu m square elements working in single photon counting modde” , 2001 IEEE Nuclear Science Symposium Conference Record, pp. 1484-1488.
International Search Report for PCT/US02/32856.
M. Lundqvist et al., “Computer Simulations and Performance Measurements on a Silicon Strip Detector for Edge-On Imaging”, IEEE Transaction on Nuclear Science, vol. 47, no. 4, Aug. 2000, pp. 1487-1492.
R. Turchetta et al., “High Spatial Resolution Silicon Read-Out System for Single Photon X-Ray Detection”, IEEE Conference Record, vol. 1, 1993, pp. 435-439.
David B. Kasle et al., “An Image Decoding ASIC for Space-Based Applications”, IEEE, 1991, pp. 86-91.
David B. Kasle, “High Resolution Decoding Techniques and Single-Chip Decoders for Multi-Anode Microchannel Arrays”, SPIE Untraviolet Technology III, vol. 1158, 1989, pp. 311-318.
DG Marks et al., “A 48×48 CdZnTe Array with Multiplexer Readout”, IEEE Transactions on Nuclear Science, vol. 43, no. 3, Jun. 1996, pp. 1253-1259.
Y.F. Du, et al., “Monte Carlo Investigation of the Charge Sharing Effects in 3-D Position Sensitive CdZnTe Gamma Ray Spectrometers”, IEEE Transactions on Nuclear Science, vol. 46, no. 4, Aug. 1999, pp. 844-847.
F. Arfelli et al., “Digital Mammography at the Trieste Synchroton Light Source”, IEEE Transactions on Nuclear Science, vol. 43, no. 3, Jun. 1996, pp. 2061-2067.
John Vallerga et al., “High Resolution (<10 micron) Photon Couting Intensified CCD”, SPIE The International Society for Optical Engineering, vol. 3019, Feb. 1997, pp. 156-167.
B. Ludewigt et al., “Progress in Multi-Element Silicon Detectors for Synchrotron XRF Applications”, Lawrence Berkeley National Laboratory, pp. 584-587.
C. Rossington Tull et al., “Spectral Response of Multi-Element Silicon X-Ray Detectors”, IEEE Transactions on Nuclear Science, vol. 45, no. 3, 1998, pp. 421-427.
E. Beuville et al., “High Resolution X-Ray Imaging using a Silicon Strip Detector”, IEEE Transactions on Nuclear Science, vol. 45, no. 6, Dec. 1998, pp. 3059-3063.
Daly, Crowley & Mofford LLP
Luu Thanh X.
Massachusetts Institute of Technology
Yam Stephen
LandOfFree
Methods and apparatus for improving resolution and reducing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for improving resolution and reducing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for improving resolution and reducing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3388885