Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1989-05-24
1991-04-16
Brinich, Stephen
Facsimile and static presentation processing
Facsimile
Recording apparatus
35821331, H04N 314
Patent
active
050087584
ABSTRACT:
A method for suppressing dark current in multi-phase CCD pixels of a CCD imaging device by transferring a charge packet at a first phase thereof at which surface depletion has occurred to a second phase thereof, while providing an inversion at the surface of the first phase. The transfer and inversion operations are performed before a dark current begins to be generated at the first phase. The charge packet at the second phase is then re-transferred back to the first phase and a surface inversion is produced at the second phase before a dark current begins to be generated at the second phase. Such transfer and inversion operations are repeated a number of times during the integration period of the imaging device so as to prevent dark current from being generated at any phase of the pixel.
REFERENCES:
patent: 3934161 (1976-01-01), Caywood
patent: 3953733 (1976-04-01), Levine
patent: 4142213 (1979-02-01), Glenn
patent: 4173772 (1979-11-01), White
patent: 4412343 (1983-10-01), Kosonocky
patent: 4496982 (1985-01-01), Levine
patent: 4498105 (1985-02-01), Crawshaw
patent: 4507684 (1985-03-01), Battson
patent: 4525743 (1985-06-01), Wood, Jr. et al.
patent: 4528596 (1985-07-01), Cope
patent: 4551762 (1985-11-01), Levine
patent: 4562473 (1985-12-01), Levine
patent: 4567525 (1986-01-01), Endo et al.
patent: 4580168 (1986-04-01), Levine
patent: 4635126 (1987-01-01), Kinoshita
patent: 4654865 (1987-03-01), Sunazuka et al.
patent: 4675847 (1987-06-01), Birnbaum et al.
patent: 4684993 (1987-08-01), Berger et al.
patent: 4700085 (1987-10-01), Miwada
patent: 4731656 (1988-03-01), Dischert et al.
patent: 4748895 (1988-07-01), Elabd
patent: 4782394 (1988-11-01), Hieda et al.
patent: 4821105 (1989-04-01), Suga et al.
patent: 4845566 (1989-07-01), Sakai et al.
Sequin, Carlo H., and Michael F. Tompsett., "Charge Transfer Devices", Academic Press, Inc., N.Y., Bell Telephone Laboratories, 1975, pp. 131-137.
Saks, N. S., "A Technique for Suppressing Dark Current Generated by Interface States in Buried Channel CCD Imagers", IEEE Electron Device Letters, vol. EDL-1, No. 7, Jul. 1980, pp. 131-133.
Janesick et al., "Fano-Noise-Limited CCDs"; Pre-print, SPIE, Optical and Optoelectronic Applied Science and Engineering Symposium, X-Ray Instrumentation in Astronomy, San Diego, Aug. 14-19 (1988), pp. 1-26.
Brinich Stephen
Massachusetts Institute of Technology
O'Connell Robert F.
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