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:
May. 25, 1999
Filed:
Sep. 10, 1996
Hiroaki Kotaki, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A solid state color image pickup apparatus easily converts an output from a solid state image sensor to a television signal with a simple structure, thereby facilitating the reduction of the size, weight, power consumption and cost of the image pickup apparatus. A color filter, which has a plurality of color filter elements respectively facing light receiving elements of a solid state image sensor, modulates optical information so that an image pickup signal output from the solid state image sensor is composed of a luminance signal component and modulated color signal components, which are obtained by modulating, with two color-difference signals, two carrier waves having phases different from each other by .pi./2, the phases of the two carrier waves are different by .pi. every horizontal scanning period in each field of a television signal, and the luminance signal component has a spectral characteristic substantially the same as that of a luminance signal of a standard television system, the first color-difference signal has a spectral characteristic substantially the same as that of a signal obtained by subtracting the luminance signal of the standard television system from a red signal of the standard television system, and the second color-difference signal has a spectral characteristic substantially the same as that of a signal obtained by subtracting the luminance signal of the standard television system from a blue signal of the standard television system.