Patent ID: 7471323

Claim:
An image sensor comprising a picture capture matrix having N rows and K columns of image dots, a read register at the free end of the K columns, and means for transferring, from one row to another and from the last row to the read register, charges corresponding to the image dots, with a transfer electrode between the last row of the matrix and the read register, each row of image dots comprising several electrodes of rank 1 to p, activated synchronously, such that the electrodes of the same rank j of all the rows are activated by the same periodic control signal, the electrode of rank p being, among the electrodes of the same row, that which is the closest to the read register, means for controlling the read register being provided for carrying out a transfer of charge from the register towards a read circuit, for interrupting this transfer while a potential barrier under the transfer electrode is lowered, and for subsequently restoring this transfer, this image sensor being characterized in that wherein the control means are configured to perform a charge transfer, on the one hand, while the row electrodes are not undergoing any potential level switching, and on the other, while the electrodes of at least one of the ranks j=1 to j=p undergo a potential level switching during a column charge transfer operation.