The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 1977
Filed:
Aug. 04, 1976
Applicant:
Inventor:
James Edward Carnes, North Brunswick, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358213 ; 2502 / ; 250578 ; 358223 ;
Abstract
Radiation illuminating the A register of a charge-coupled device (CCD) imager of the field transfer type during the transfer of a field from the A to the B register results in smear in the reproduced image. Such smear is reduced in a rear surface illuminated imager by forming a depletion region at said rear surface during the A to B transfer time. Charge carriers which are excited in the substrate during this period preferentially remain at the rear surface where they are passed to a drain rather than flowing to the potential wells whose contents are being shifted from the A to the B register.