Image sensing method and apparatus in which the exposure time may be varied
First Claim
1. A camera comprising:
- sensing means for receiving a light signal, performing a photoelectric conversion, and storing information;
reading means for reading the information from said sensing means once each reading period nT (where n is an integer equal to or greater than 2 and T is a field period of a standard television signal);
eliminating means for eliminating information from said sensing means, the eliminated information corresponding to a partial interval T1 within the reading period nT;
altering means for altering the width of the partial interval T1;
memory means for storing information outputted from said sensing means at a reading period nT; and
memory control means for controlling said memory means in such a manner that the information stored in said memory means, is outputted at a field period T.
0 Assignments
0 Petitions
Accused Products
Abstract
An image sensing apparatus including an image sensing device for receiving a light signal, performing a photoelectric conversion, and generating image information. The device also includes a first type semiconductor substrate, and a second type semiconductor layer formed on the first type semiconductor substrate. In addition, there is provided a light receiving portion formed on the second type semiconductor layer. This portion receives a light signal, performs a photoelectric conversion, and generates image information. Moreover, there is control circuitry for controlling the image sensing device such that image information is output repeatedly once each reading period nT (where n is an integer equal to or greater than two and T is a field period of a standard television signal). Information corresponding to a partial interval T1 within the reading period nT is carried to the first type semiconductor substrate. There is also provided altering circuitry for altering the length of the partial interval T1.
51 Citations
20 Claims
-
1. A camera comprising:
-
sensing means for receiving a light signal, performing a photoelectric conversion, and storing information; reading means for reading the information from said sensing means once each reading period nT (where n is an integer equal to or greater than 2 and T is a field period of a standard television signal); eliminating means for eliminating information from said sensing means, the eliminated information corresponding to a partial interval T1 within the reading period nT; altering means for altering the width of the partial interval T1; memory means for storing information outputted from said sensing means at a reading period nT; and memory control means for controlling said memory means in such a manner that the information stored in said memory means, is outputted at a field period T. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An image sensing apparatus comprising:
an image sensing device for receiving a light signal, performing a photoelectric conversion on the light signal, and generating image information corresponding to the light signal, said device including; a first type semiconductor substrate; a second type semiconductor layer formed on the first type semiconductor substrate; and a light receiving portion formed on the second type semiconductor layer, said portion receiving a light signal, performing a photoelectric conversion on the light signal, and generating image information corresponding to the light signal; control means for controlling said image sensing device such that image information is outputted repeatedly once each reading period nT (where n is an integer equal to or greater than 2 and T is a field period of a standard television signal) from the image sensing device, and such that information corresponding to a partial interval T1 within the reading period nT is carried to the first type semiconductor substrate; and altering means for altering the length of the partial interval T1. - View Dependent Claims (9, 10, 11, 12, 13)
-
14. Image sensor apparatus having an image sensor and an electronic shuttering function, comprising:
-
control means for reading out signals from the image sensor in a first interval of a period of more than one integer number of field periods; altering means for altering a period within said first interval for discharging some of the charges that have been accumulated in the image sensor; memory means for storing signals read out from the image sensor in said first interval; and memory control means for controlling said memory means in such a manner that the signals are outputted at a field period. - View Dependent Claims (15)
-
-
16. Image sensor apparatus having an image sensor, comprising:
-
control means for reading out signals from the image sensor in a first interval of more than one integer number of field periods; discarding means for discarding some of the charges accumulated in the image sensor within said first interval; memory means for storing signals read out from the image sensor in said first interval of more than one integer number of field periods; and memory control means for controlling said memory means in such a manner that the signals are outputted at a field period. - View Dependent Claims (17, 18, 19, 20)
-
Specification