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:
Feb. 27, 1979
Filed:
Mar. 29, 1977
Stephen J Glenn, Chelmsford, GB;
Diller, Ramik & Wight, Chelmsford, GB;
Elliott Brothers (London) Limited, Chelmsford, GB;
Abstract
The invention concerns charge coupled devices and the problems of dark current effects. In an arrangement including a charge coupled device utilized as a storage element for data a second charge coupled device is provided. Data is applied to the first device during one half of the storage period, the content of the first device transferred to the second during the second half of the storage period and at the end of the storage period the stored contents of both devices are subtractively combined. In one particular case the arrangement is a CCD television camera of the field transfer type where the normally provided one charge coupled device is replaced by first and second charge coupled devices and the optical image from the optical section of the camera is directed first to one device and then to the second device and the contents of the two devices are exchanges at the end of a storage period.