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US 4,791,308 AGranted
Solid-state image pick-up apparatus having variable magnification of image sizes by changing the image sensor address range
AssigneeCanon Kabushiki Kaisha
InventorYoshitake Nagashima
Life of this patent
Estimating the term…
Abstract
A solid-state image pick-up apparatus for gradually reading out the data of picture elements residing within a range of addresses set according to a given clock signal is provided with means for making constant the read-out amount of the picture element data irrespective of the extent of the set address range, so that the image pick-up magnification is variable by changing the address range.
Claims14
An image pick-up apparatus comprising:
- (a) image pick-up means having a plurality of photoelectric converting elements arranged in a matrix, each of said elements generating an electrical signal indicative of information of such image;
- (b) read-out means for reading out said electrical signals by addressing said photoelectric converting elements, said read-out means being respsonsive to respective diverse control signals to selectively read out different sizes of areas formed by said photoelectric converting elements within respective time periods of common duration;
- and
- (c) control means for generating said diverse control signals and for selectively combining said electrical signals in predetermined different combinations in correspondence with said size of areas of phoeoelectric converting elements addressed by said read-out means.
1 more element
An image pick-up apparatus comprising:
- (a) image pick-up means for converting an optical image into electrical signals each indicative of a information of said image, said image pick-up means having a predetermined light receiving area;
- (b) reading means for reading out such signals from said image pick-up means;
- and
- (c) control means for controlling such signal readout by said reading means, said control means being changeable by operator input thereto between at least two operating modes including a first mode in which said reading means is caused to read out signals only from said image pick-up means within a first area of said predetermined light receiving area and a second mode in which said reading means is caused to read out signals from a second area which is larger than said first area, said control means being operative to change the read-out density of such signals read out from said image pick-up means respectively when operable in said first and second modes.
1 more element
An image pick-up apparatus, comprising:
- (a) impage pick-up means for converting an optical image into electrical signals;
- (b) first means for varying a range of read-out of electrical signals in said image pick-up means;
- and
- (c) control means for controlling gains of the read-out electrical signals in acordance with the variation of the read-out range by the first means.
1 more element
An image pick-up apparatus, comprising:
- (a) impage pick-up means for converting an optical image into electrical signals;
- (b) first means for varying a range of read-out of electrical signals in said image pick-up means;
- and
- (c) means for making constant the amount of information read-out per unit time from the image pick-up means in accordance with the variation of the read-out range by said first means.
1 more element
Dependencies are inferred from the claim text.