公开(公告)号：US10798323B1

公开(公告)日：2020-10-06

申请号：US16070885

申请日：2017-01-13

申请人： Teledyne e2v Semiconductors SAS

发明人： Frédéric Mayer ,  Frédéric Barbier ,  Stéphane Gesset

IPC分类号： H04N5/355 ,  H04N5/374 ,  H04N5/378 ,  H04N5/235 ,  H04N5/359 ,  H04N5/217 ,  H01L27/146 ,  H04N5/3745

摘要： In an active pixel sensor comprising a photodiode Dp, a memory node MN and a readout node SN, the memory node being provided to contain the charge generated by the photodiode at the end of an integration period allowing an integration in global shutter mode and a correlated double sampling, it is envisaged to carry out, in each integration period, at least one transfer {circle around (2)} of charge from the photodiode to the memory node followed by clipping {circle around (3)} of the amount of charge contained in the memory node at an intermediate voltage t1 after the start of the integration period but before a last transfer of charge {circle around (4)} to the memory node at the end of the integration period. The pixels are subsequently read out, row by row, by correlated double sampling CDS. The one or more intermediate transfers, with clipping, to the memory node during the integration period allow the dynamic range of the sensor to be extended to high levels of ambient light while retaining good sensitivity to low levels of ambient light.

公开(公告)号：US10033363B2

公开(公告)日：2018-07-24

申请号：US15534524

申请日：2015-12-08

申请人： Teledyne e2v Semiconductors SAS

发明人： Bruno Diasparra ,  Frédéric Barbier

IPC分类号： H03K5/15

摘要： The invention proposes a method for distributing a signal to each block Bj of a series of N adjacent blocks of identical design in an electronic circuit. It proposes, in an identical fashion for each of the N blocks, placing a timing delay circuit MUX-DELj on the path for conveying a signal Sc from the input INcj of the block to an internal electrical node Ndj of the block for this signal Sc; providing for the timing delay circuit to supply N delayed signals corresponding to N different timing delays Δf1, . . . Δfj, . . . ΔfN separated by an increment of elementary duration Δt that corresponds to the elementary delay Δt for transit of a block introduced into a conductive line; and selecting the delayed signal corresponding to the applicable timing delay according to the block in question, by means of an index signal propagated through the N blocks, and which is incremented or decremented on passage through each block.

公开(公告)号：US10587830B2

公开(公告)日：2020-03-10

申请号：US15747057

申请日：2016-07-29

申请人： Teledyne e2v Semiconductors SAS

发明人： Frédéric Mayer ,  Frédéric Barbier ,  Stéphane Gesset

IPC分类号： H04N5/3745 ,  H04N5/335 ,  H04N5/355 ,  H04N5/374 ,  H01L27/146 ,  H04N5/378

摘要： In a sensor comprising active pixels including a photodiode PHD, a memory node MN and a read-out node SN, the memory node being provided to hold the charge generated by the photodiode at the end of an integration period enabling integration in global-shutter mode and a correlated double sampling read-out, provision is made for the charge-storage capacity of the memory node to be at least N times higher than the charge-storage capacity of the photodiode (N being an integer higher than or equal to 2) and provision is made to carry out, in each integration and read-out cycle, during the integration duration Tint(i), N transfers Tri1, Tri2, Tri3 of charge from the photodiode to the memory node, the N transfers being equally distributed over the integration duration. The dynamic range of the sensor is improved under high light levels.