公开(公告)号：EP0071005A2

公开(公告)日：1983-02-09

申请号：EP82105013.5

申请日：1982-06-08

申请人： International Business Machines Corporation

发明人： Bushaw, Kenneth Allen ,  Gillingham, Ronald Dean ,  Jorgenson, Gary William ,  Steffes, Michael Anthony ,  Manning, Clyde Louis

IPC分类号： H04N1/40

CPC分类号： H04N1/40056

摘要： @ This invention relates to a system for scanning an illuminated area (20) in which a linear image sensor (18) and the video channel (22, 12, 26 and 16) associated with the sensor are calibrated to maximize the video signal available. The sensor is limited in output by saturation of the CCD analog shift registers in the sensor. The channel is limited by the range of the analog-to-digital converter (16) in the channel. The useable video signal is maximized by calibrating the sensor (18) relative to its saturation condition and by adjusting the gain of the video channel relative to the range of the analog-to-digital converter (16). The sensor is calibrated by adjusting its exposure to illumination. The adjustment may be made by adjusting the illumination source (10) or by changing the sampling interval T for the sensor (18). The gain is adjusted by using a variable gain amplifier (12). A microprocessor (14) monitors the digitized video signal and controls the exposure and gain to calibrate the sensor and channel.

摘要翻译： 本发明涉及一种用于扫描照明区域（20）的系统，其中校准与传感器相关联的线性图像传感器（18）和视频通道（22,12,26和16）以最大化可用的视频信号。 传感器在传感器中CCD模拟移位寄存器的饱和度受输出限制。 通道受通道中模数转换器（16）的范围的限制。 通过相对于其饱和状态校准传感器（18）并相对于模 - 数转换器（16）的范围调整视频通道的增益，使可用的视频信号最大化。 传感器通过调节其照度来校准。 可以通过调节照明源（10）或通过改变传感器（18）的采样间隔T来进行调节。 通过使用可变增益放大器（12）来调整增益。 微处理器（14）监视数字化视频信号并控制曝光和增益以校准传感器和通道。

公开(公告)号：EP0071005A3

公开(公告)日：1986-03-19

申请号：EP82105013

申请日：1982-06-08

申请人： International Business Machines Corporation

发明人： Bushaw, Kenneth Allen ,  Gillingham, Ronald Dean ,  Jorgenson, Gary William ,  Steffes, Michael Anthony ,  Manning, Clyde Louis

IPC分类号： H04N01/40

CPC分类号： H04N1/40056

摘要： @ This invention relates to a system for scanning an illuminated area (20) in which a linear image sensor (18) and the video channel (22, 12, 26 and 16) associated with the sensor are calibrated to maximize the video signal available. The sensor is limited in output by saturation of the CCD analog shift registers in the sensor. The channel is limited by the range of the analog-to-digital converter (16) in the channel. The useable video signal is maximized by calibrating the sensor (18) relative to its saturation condition and by adjusting the gain of the video channel relative to the range of the analog-to-digital converter (16). The sensor is calibrated by adjusting its exposure to illumination. The adjustment may be made by adjusting the illumination source (10) or by changing the sampling interval T for the sensor (18). The gain is adjusted by using a variable gain amplifier (12). A microprocessor (14) monitors the digitized video signal and controls the exposure and gain to calibrate the sensor and channel.

公开(公告)号：EP0071005B1

公开(公告)日：1989-08-30

申请号：EP82105013.5

申请日：1982-06-08

申请人： International Business Machines Corporation

发明人： Bushaw, Kenneth Allen ,  Gillingham, Ronald Dean ,  Jorgenson, Gary William ,  Steffes, Michael Anthony ,  Manning, Clyde Louis

IPC分类号： H04N1/40

CPC分类号： H04N1/40056