公开(公告)号：EP1717729A3

公开(公告)日：2007-03-14

申请号：EP06076121.0

申请日：2003-09-02

Applicant: MICROSCAN SYSTEMS INCORPORATED

Inventor： Kolstad, Jesse J.

IPC: G06K7/10

CPC classification number: G06K7/10851

Abstract: The disclosure describes an apparatus and method for automatic gain control during scanning. The apparatus comprises an optical detector (206) to receive an optical signal reflected from a symbol (214) positioned within a scan window (215) by an optical beam (212) scanned from a leading edge (218) of the scan window (215) to a trailing edge (220) of the scan window; and a processor coupled (208) to the optical detector to adjust the gain of the optical detector during the beam scan. The process comprises receiving an optical signal using an optical detector (206), wherein the optical signal comprises optical energy reflected from a symbol positioned in a scan window as an optical beam scans from a leading edge of the scan window to a trailing edge of the scan window, and adjusting the gain of the optical detector during receipt of the optical signal. A calibration process is disclosed comprising calibrating the optical detector to obtain a plurality of gain corrections, each gain correction corresponding to a different position between a leading edge and a trailing edge of a scan window, and storing the plurality of gain corrections.

公开(公告)号：EP1717729A2

公开(公告)日：2006-11-02

申请号：EP06076121.0

申请日：2003-09-02

Applicant: MICROSCAN SYSTEMS INCORPORATED

Inventor： Kolstad, Jesse J.

IPC: G06K7/10

CPC classification number: G06K7/10851

Abstract: The disclosure describes an apparatus and method for automatic gain control during scanning. The apparatus comprises an optical detector (206) to receive an optical signal reflected from a symbol (214) positioned within a scan window (215) by an optical beam (212) scanned from a leading edge (218) of the scan window (215) to a trailing edge (220) of the scan window; and a processor coupled (208) to the optical detector to adjust the gain of the optical detector during the beam scan. The process comprises receiving an optical signal using an optical detector (206), wherein the optical signal comprises optical energy reflected from a symbol positioned in a scan window as an optical beam scans from a leading edge of the scan window to a trailing edge of the scan window, and adjusting the gain of the optical detector during receipt of the optical signal. A calibration process is disclosed comprising calibrating the optical detector to obtain a plurality of gain corrections, each gain correction corresponding to a different position between a leading edge and a trailing edge of a scan window, and storing the plurality of gain corrections.

Abstract translation: 本公开描述了一种用于扫描期间自动增益控制的装置和方法。 该装置包括光学检测器（206），用于通过从扫描窗口（215）的前沿（218）扫描的光束（212）接收从位于扫描窗口（215）内的符号（214）反射的光信号， ）到扫描窗口的后缘（220）; 以及耦合到所述光学检测器的处理器（208），以在所述光束扫描期间调节所述光学检测器的增益。 该过程包括使用光学检测器（206）接收光学信号，其中当光束从扫描窗口的前沿扫描到扫描窗口的前沿时，光信号包括从位于扫描窗口中的符号反射的光能量 扫描窗口，以及在接收光信号期间调整光学检测器的增益。 公开了一种校准过程，包括校准光学检测器以获得多个增益校正，每个增益校正对应于扫描窗口的前沿和后沿之间的不同位置，并存储多个增益校正。

公开(公告)号：EP1717729B1

公开(公告)日：2010-07-28

申请号：EP06076121.0

申请日：2003-09-02

Applicant: MICROSCAN SYSTEMS INCORPORATED

Inventor： Kolstad, Jesse J.

IPC: G06K7/10

CPC classification number: G06K7/10851