公开(公告)号：EP1530823A1

公开(公告)日：2005-05-18

申请号：EP03766396.0

申请日：2003-07-31

申请人： Augusto, Carlos, J.R.P. ,  DINIZ, Pedro, N., C.

发明人： Augusto, Carlos, J.R.P. ,  DINIZ, Pedro, N., C.

IPC分类号： H03M1/54

CPC分类号： H03M1/125 ,  H03M1/54 ,  H03M1/60

摘要： A new methodology is disclosed to convert analog electric signals into digital data. The method provides a serial scheme without pre-definition of the number of bits (dynamic range). It allows digital processing of the input signal without sampling and holding of the input signal. Processing of the input signal is clock-less and asynchronously dependent on the time-evolution of the input signal itself. Thereby, a programmable, dynamic adjustment of bandwidth (product of dynamic range and speed of conversion) of the analog-to-digital conversion process can be achieved depending on the characteristics of the input signal. Dynamic adjustment of the bandwidth is accomplished by digitally controlling a 'threshold' value at the input capacitor of the comparator, which when met by the input signal, triggers a transition at the output of the comparator.

公开(公告)号：EP1570645A1

公开(公告)日：2005-09-07

申请号：EP03782345.7

申请日：2003-12-09

申请人： Quantum Semiconductor, LLC ,  Augusto, Carlos, J.R.P. ,  DINIZ, Pedro, N., C.

发明人： AUGUSTO, Carlos, J.R.P. ,  DINIZ, Pedro, N.C.

IPC分类号： H04N3/15 ,  H04N5/335 ,  H01L31/02

CPC分类号： H04N5/3745 ,  H04N5/374

摘要： In-pixel circuit architectures for CMOS image sensors are disclosed, which are suitable for avalanche photo-diodes operating either in linear or in non-linear mode. These architectures apply in particular to photo-diodes and image sensors in which CMOS devices are fabricated on thin-film silicon-on-insulator substrates.