摘要:
In processing a video signal, vertical correlation is utilized between video signals of successive line intervals. Video signals from the two line intervals are examined, their existences, polarities and magnitudes between them. If both signals exist with the same polarity, a smaller signal in magnitude is derived at a system output and otherwise no signal appears at the output. This system can be applied to a color television camera circuit.
摘要:
A solid state color camera having an image sensing device which has a plurality of image sensing cells aligned in both the horizontal and vertical directions, an optical filter which produces three primary color separated images on the image sensing device, a circuit which reads out an image signal as to satisfy an interlaced signal reading system of a standard television signal, the image signal being comprised of a luminance signal and a chrominance modulated carrier signal, a circuit which supplies a carrier signal to the reading out circuit, the carrier signal being selected approximately equal to or half of a standard color sub-carrier frequency, and a circuit selecting vertical and horizontal frequencies of a read out image signal.
摘要:
A solid state color television camera having a solid state image sensing device and an optical color filter. In this case, the color separating characteristics of the color filter is so selected that when a predetermined horizontal scanning line is scanned, from the solid state image sensing device there are obtained a red color signal and a luminance signal of the standard system sequentially and alternately, and from a horizontal scanning line adjacent the above horizontal scanning line there are obtained a blue color signal and luminance signal. Also, as the high band component, which constitutes the above luminance signal, the high band component of a composite video output signal, which includes the primary color signal and luminance signal produced by scanning the above horizontal scanning line, is utilized. Further, by scanning the respective horizontal scanning lines, different color difference output signals obtained at every one horizontal scanning line are made in simultaneity and based upon the color difference output signals and luminance signal there is produced a color video signal of the standard system.
摘要:
A solid state television camera having a solid state image sensing device and an optical color filter. The color separating characteristics of the color filter are so selected that when a predetermined horizontal scanning line is scanned the solid state image sensing device produces a standard red color signal and a luminance signal sequentially and alternately, and when an adjacent horizontal line is scanned, a blue color signal and luminance signal are produced in the same manner. In this way, different color difference output signals are simultaneously obtained at every horizontal scanning line, and based upon the color difference output signals and luminance signal, there is produced therefrom a standard color video signal.
摘要:
A solid state color camera such as one-chip type CCD (charge coupled device) color camera having a color filter employed in association with the CCD chip and arranged so that an output signal derived from every other sequential line of scan includes only color component signals of the object being sensed.
摘要:
A solid state color camera of a type in which a composite color video signal of the NTSC system is obtained without using a specific color encoder. The solid state color camera has a solid state image sensing device having a plurality of image sensing cells or elements aligned in both vertical and horizontal directions for converting a light information of an object into an electric signal information in association with said image sensing elements, a color filter disposed in a light path of said light information of the object for modifying said electric signal information in accordance with color components included in said light information, a read-out register adapted to receive said electric signal information of one horizontal scanning period line by line from said solid state image sensing device and to supply an output video signal in a serial form, a separating circuit for separating a luminance signal component and chrominance signal component out of said output video signal from said read out register means, an adding circuit for adding said separated luminance signal components and chrominance signal components, a circuit for deriving at a system output a composite color video signal acceptable in the NTSC color system, a supplying circuit for supplying vertical and horizontal scanning signals to said solid state image sensing device, a circuit for supplying read out pulses to said read out register, a frequency of said read out pulses being selected to (M/N) .times. f.sub.S, where N and M are both integers and f.sub.S is a frequency of subcarrier of the NTSC color system, and an adjusting circuit for adjusting phase conditions of said luminance signal components at said system output so that they become equal to said alignment states of said image sensing elements of said solid state image sensing device.
摘要:
A white balance control circuit for an encoded composite color television signal is disclosed in which three primary color signals of green (G), blue (B) and red (R) are matrixed to be mixed color signal components, color difference signals of R-G and B-G are provided from the mixed color signal components, and gain control circuits provided on the signal transmission paths of two primary color signals of R and B are so controlled in their gains that the color difference signals become zero, when the white balance adjustment is done.
摘要:
A color camera system is disclosed in which a dot-like signal which appears on a TV screen caused by a processing error is effectively eliminated. A pick up device with a color coding filter derives composite signals containing color components modulated at a frequency f.sub.s where the composite signals are obtained in opposite phase line by line. An adder circuit is provided to mix the composite signals obtained from two adjacent lines. A detector detects the 2nd harmonic of f.sub.s from the mixed composite signals. A dual gate MOSFET is provided to suppress a high frequency region of a luminance signal which is derived from the composite signals in response to the detected 2nd harmonic of f.sub.s.
摘要:
A color signal modulating system for a color television camera having two CCD's as image pick-up devices for converting optical images into two color signals at alternate scan lines and into a third color signal at consecutive scan lines. Means are provided for developing two color difference signals, one of which is developed from alternate lines of scan. The color difference signals are used to modulate a carrier signal at alternate lines, and means are provided to derive sequentially modulated first and second color difference signals simultaneously at an output of the signal modulating system.
摘要:
A solid state video camera having a plurality of charge coupled devices having an alignment pitch with one another selected at .tau..sub.H where .tau..sub.H is the reciprocal of the sampling frequency. A light image is projected on the three charge coupled devices, respectively. Assuming that the relative positional relationship among the light images projected on the respective charge coupled devices is, as between the first and second charge coupled devices, taken as .tau..sub.12 and, as between the first and third charge coupled devices, taken as .tau..sub.13, respectively, then the relative displaced distances .tau..sub.12 and .tau..sub.13 are selected to satisfy the following equations ##EQU1## where L.sub.1, L.sub.2 and L.sub.3 represent the levels of signals which will form the luminance signal relating to the respective charge coupled devices.