公开(公告)号：US6046445A

公开(公告)日：2000-04-04

申请号：US60677

申请日：1998-04-15

Applicant: Timothy David Kaiser

Inventor： Timothy David Kaiser

IPC: G01C15/00 ,  H01S40/14

CPC classification number: G01C15/006

Abstract: A light detection system is provided including a switching circuit connected to an inductor shunted across a photoelectric cell and operative to switch between a light detection state and a charge storage state, wherein the light detection state causes a majority of current flowing through the inductor to bypass the charge storage circuit, and wherein the charge storage state causes a majority of current flowing through the inductor to pass through the charge storage circuit. In one embodiment of the present invention, the switching circuit is changed to the light detection state during a first period of time during which the laser beam is in the vicinity of the photoelectric cell and to the charge storage state during a second period of time during which the laser beam is remote from the photoelectric cell.

Abstract translation: 提供了一种光检测系统，其包括连接到分流在光电池上的电感器并且可操作以在光检测状态和电荷存储状态之间切换的电感器的开关电路，其中光检测状态导致流过电感器的大部分电流绕过 电荷存储电路，并且其中电荷存储状态导致流经电感器的大部分电流通过电荷存储电路。 在本发明的一个实施例中，在激光束在光电池附近的第一时间段期间，在第二时段期间切换电路改变为光检测状态 激光束远离光电池。

公开(公告)号：US06756578B1

公开(公告)日：2004-06-29

申请号：US10051793

申请日：2002-01-17

Applicant: Timothy David Kaiser

Inventor： Timothy David Kaiser

IPC: H01J4014

CPC classification number: H03F3/08

Abstract: Receiver circuits are provided for detecting a target light source. The circuits include a photocell arranged to detect light impinging thereupon, and a biasing circuit that maintains a constant reverse voltage across, the photocell irrespective of the photocell output. This maintains the capacitance of the photocell at a substantially constant value, and results in faster response times from the photocell. Further, the present invention provides circuits for effectively removing ambient conditions such as daylight from the output. Also, the present invention reduces the amount of signal loss between the photocell output and an amplifier due to loading at the input stage of the amplifier.

Abstract translation: 接收器电路用于检测目标光源。 这些电路包括布置成检测入射的光的光电管，以及偏置电路，其与光电管输出无关地保持光电管两端的恒定的反向电压。 这将光电池的电容维持在基本上恒定的值，并且导致更快的从光电池的响应时间。 此外，本发明提供了用于从输出有效地去除诸如日光的环境条件的电路。 此外，本发明减少了由于在放大器的输入级加载而导致的光电池输出与放大器之间的信号损失量。