초록 ▼

Disclosed is a detection method and a corresponding array architecture comprising sensors positioned according to a particular geometry, enabling the integration of a circuit for the management of the integration cycles and of transfers of charges between injection-integration circuits and TDI type

Disclosed is a detection method and a corresponding array architecture comprising sensors positioned according to a particular geometry, enabling the integration of a circuit for the management of the integration cycles and of transfers of charges between injection-integration circuits and TDI type summation circuits in the focal plane of the array. The array is fitted into a scanning camera that scans in a particular direction. The camera is designed to form a video signal for an image made up of pixels spaced out at a pitch p.sub.p with a value corresponding to the standard. The array has several rows of elementary sensors. The the sensors that belong to different rows and are aligned in the scanning direction define a detection channel V.sub.k. The spatial pitch p.sub.c of one and the same detection channel has a value that differs from the value of the pixel pitch p.sub.p by a fraction of this pixel pitch such that a sensor-pixel coincidence, which is achieved for a reference sensor C.sub.0, is no longer synchronous for any other sensor exposed to the same elementary field of view.

대표청구항 ▼

[ What is claimed is:] [1.] A method of detection with distributed integration and read cycles for a camera that scans in a given direction .increment., .pi. designed to form an image made up of pixels spaced out at a pitch p.sub.p with a value corresponding to a predetermined standard, said camera

[ What is claimed is:] [1.] A method of detection with distributed integration and read cycles for a camera that scans in a given direction .increment., .pi. designed to form an image made up of pixels spaced out at a pitch p.sub.p with a value corresponding to a predetermined standard, said camera comprising an array of several rows of elementary sensors C.sub.i positioned in a direction orthogonal to the scanning direction, the sensors that belong to different rows and are aligned in the scanning direction defining a TDI detection channel V.sub.k, each detection channel V.sub.k comprising a circuit for the injection and integration of the charges delivered by each sensor C.sub.i during a period of exposure to form a sampling signal, and a read circuit of summators to totalize the sampling signals corresponding to one and the same pixel, said method consisting of the choosing of a value of spatial pitch p.sub.c for the sensors of one and the same detection channel that differs from the value of the pixel pitch p.sub.p by a fraction of this pixel pitch such that a sensor-pixel coincidence, which is achieved for a reference sensor C.sub.0, is no longer synchronous for any other sensor exposed to the same elementary field of view and consisting of the recording, in each summator, between two successive readings of each sensor, of the information coming from the associated integrated circuit.