公开(公告)号：US08400798B2

公开(公告)日：2013-03-19

申请号：US12638711

申请日：2009-12-15

Applicant: Fulvio Giacomo Bagarelli ,  Vincenzo Marano

Inventor： Fulvio Giacomo Bagarelli ,  Vincenzo Marano

IPC: H02M5/42 ,  H02M7/68 ,  H02M3/24 ,  H02M7/44 ,  H02M7/5387

CPC classification number: H02M3/157 ,  H02M2001/0019 ,  H02M2003/1555

Abstract: A pulse width modulated current control method and system architecture may achieve the high performance of an advanced current control for full-bridge stages, in terms of accuracy, error, speed, and frequency response, but with a reduced complexity in terms of used analog circuits, being comparable with that of an elementary peak current control. The only analog blocks used may be a current sense transducer, i.e. a series resistor or a sense-FET, and a comparator for the current sensing while the rest of the control circuitry is digital.

Abstract translation: 脉宽调制电流控制方法和系统架构可以在精度，误差，速度和频率响应方面实现全桥级的高级电流控制的高性能，但是在使用的模拟电路方面降低了复杂度 ，与基本峰值电流控制相当。 所使用的唯一模拟块可以是电流感测传感器，即串联电阻器或感测FET，以及用于电流检测的比较器，而控制电路的其余部分是数字的。

公开(公告)号：US07106913B2

公开(公告)日：2006-09-12

申请号：US10300663

申请日：2002-11-19

Applicant: Alfio Castorina ,  Massimo Mancuso ,  Sebastiano Battiato

Inventor： Alfio Castorina ,  Massimo Mancuso ,  Sebastiano Battiato

IPC: G06K9/40

CPC classification number: G06T5/50 ,  G06T2207/20208

Abstract: A method of processing digital source images, each represented by pixel matrices, to obtain from two or more source images, representing one and the same real scene and acquired by utilizing different exposure levels, a final digital image capable of reproducing the real scene with an exposure latitude greater than that of each of the source images. The method, which can be advantageously used in digital still cameras, produces the final image by combining the source images with the help of a weighted average constructed pixel by pixel. Thanks to a special filtering to which the weighting coefficients are subjected before the weighted mean operation, the method obtains a final image in which the source images are harmoniously combined with each other.

公开(公告)号：US20030197636A1

公开(公告)日：2003-10-23

申请号：US10455894

申请日：2003-06-06

Applicant: STMicroelectronics S. r. l.

Inventor： Pierangelo Confalonieri ,  Marco Zamprogno ,  Angelo Nagari

IPC: H03M001/12

CPC classification number: H03M1/68 ,  H03M1/468 ,  H03M1/804

Abstract: A switched capacitor digital to analog converter includes first and second converter segments having respective first and second arrays of binary weighted capacitors. Each capacitor of the first segment has a first electrode connected to a first common node and a second electrode connected through respective switches to one of first and second reference voltage terminals. Each capacitor of the second segment has a first electrode connected to a second common node and a second electrode connected through respective switches to one of the first and second reference voltage terminals. The converter includes a coupling capacitor connected between the first and second common nodes and capacitance means connected between the first common node and a reference voltage terminal. The coupling capacitor and capacitance means have capacitances, Cs and CATT respectively, that substantially satisfy the relationship: (2pnull1)nullCsnullCATTnull2pnullC, where p is the number of bits coded in the first converter segment and C is the unit capacitance.

Abstract translation: 开关电容器数模转换器包括具有相应的第二和第二二进制加权电容器阵列的第一和第二转换器段。 第一段的每个电容器具有连接到第一公共节点的第一电极和通过各个开关连接到第一和第二参考电压端子之一的第二电极。 第二段的每个电容器具有连接到第二公共节点的第一电极和通过各个开关连接到第一和第二参考电压端子之一的第二电极。 该转换器包括连接在第一和第二公共节点之间的耦合电容器和连接在第一公共节点和参考电压端子之间的电容装置。 耦合电容器和电容装置分别具有电容Cs和CATT，其基本上满足以下关系：（2

-1）.C-CATT = 2·C，其中p是在 第一转换器段，C为单位电容。