公开(公告)号：WO2013034770A2

公开(公告)日：2013-03-14

申请号：PCT/EP2012/067672

申请日：2012-09-10

Applicant: BOROWSKI, André ,  TECHNISCHE UNIVERSITEIT DELFT ,  KUMAR, Priyanka ,  STASZEWSKI, Robert ,  CHARBON, Edoardo

Inventor： KUMAR, Priyanka ,  STASZEWSKI, Robert ,  CHARBON, Edoardo

IPC: G04F10/00

CPC classification number: H03M1/002 ,  G01B11/24 ,  G01T1/1647 ,  G04F10/005 ,  H04N5/378 ,  H04N13/20 ,  H04N2213/001

Abstract: Time-to-digital converter system comprising: an event detector configured for detecting an event and generating an event detection signal upon detection of the event;and a time-to-digital converter coupled or connectable to the event detector and comprising a fine resolution part configured for counting fine time intervals, organized such that the fine resolution part is activated in response to the event detection signal and deactivated in response to a reference clock. 3D imager comprising an array of pixels, with in each pixel such a time-to-digital converter system, and further comprising a reference clock generator.

Abstract translation: 时间到数字转换器系统，包括：事件检测器，被配置为在检测到事件时检测事件并产生事件检测信号;以及时间 - 数字转换器，其耦合或连接到事件检测器，并且包括精细分辨率部分 被配置为对精细时间间隔进行计数，被组织成使得精细分辨率部分响应于事件检测信号被激活并且响应于参考时钟被去激活。 3D成像器包括像素阵列，每个像素中的诸如时间 - 数字转换器系统，还包括参考时钟发生器。

公开(公告)号：WO2005086759A3

公开(公告)日：2006-10-05

申请号：PCT/US2005007326

申请日：2005-03-07

Applicant: TEXAS INSTRUMENTS INC ,  STASZEWSKI ROBERT B ,  LEIPOLD DIRK

Inventor： STASZEWSKI ROBERT B ,  LEIPOLD DIRK

IPC: H04L7/00 ,  H04L27/04

CPC classification number: H03J7/047 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0966 ,  H03L1/00 ,  H03L2207/50

Abstract: A mobile device includes frequency synthesizer circuitry (44) for generating a channel frequency at a multiple of a reference frequency. The reference frequency is generated by a free-running crystal oscillator (72), without frequency stabilization circuitry. Variations in the output of the crystal oscillator (72) are compensated by adjusting the multiplication factor of the frequency synthesizer.

Abstract translation: 移动设备包括用于以参考频率的倍数产生频道频率的频率合成器电路（44）。 参考频率由自由运行的晶体振荡器（72）产生，没有频率稳定电路。 通过调整频率合成器的乘法因子来补偿晶体振荡器（72）的输出的变化。

公开(公告)号：WO2005104380A2

公开(公告)日：2005-11-03

申请号：PCT/US2005/013000

申请日：2005-04-18

Applicant: TEXAS INSTRUMENTS INCORPORATED ,  MUHAMMAD, Khurram ,  STASZEWSKI, Robert, B. ,  LEIPOLD, Dirk

Inventor： MUHAMMAD, Khurram ,  STASZEWSKI, Robert, B. ,  LEIPOLD, Dirk

IPC: H04B1/16

CPC classification number: H03D7/18 ,  H03H19/004 ,  H03H2007/0192

Abstract: Disclosed are methods, circuits and systems for image reject filtering in a multi-tap direct sampling mixer (MTDSM) of an IF or RF system. Disclosed is the use of rotating capacitors among the in-phase and quadrature branches of a signal processing system. The exchange of information among the branches of the I and Q channels is used in the implementation of a complex filter. Rotation of a switched capacitor C R between the I and Q channels of the circuit causes a sharing of the charge among the four paths, I+, I-, Q+, Q-, resulting in a direct sampling and a complex filtering arrangement (10). The preferred embodiment of the filter (10) shown can be seen to have four sub-circuits (12, 14, 16, 18), which may be understood as single-pole IIR filters. Embodiments using cascaded multiple stages of the complex filter to provide higher order complex filters are also disclosed.

Abstract translation: 公开了用于IF或RF系统的多抽头直接采样混频器（MTDSM）中的图像抑制滤波的方法，电路和系统。 公开了在信号处理系统的同相和正交分支中使用旋转电容器。 在I和Q通道的分支之间的信息交换被用于实现复杂的过滤器。 在电路的I和Q通道之间的开关电容器CR的旋转导致在四个路径I +，I，Q +，Q-中的电荷共享，导致直接采样和复杂滤波装置（10）。 可以看出所示滤波器（10）的优选实施例具有四个子电路（12,14,16,18），其可被理解为单极IIR滤波器。 还公开了使用复合滤波器的级联多级以提供更高阶复数滤波器的实施例。