公开(公告)号：US3343032A

公开(公告)日：1967-09-19

申请号：US42921965

申请日：1965-02-01

Applicant: BENDIX CORP

Inventor： DAVID CLARENCE V ,  KAMM VERNON C ,  WILKINSON JOHN R

IPC: H03K21/08

CPC classification number: H03K21/08

公开(公告)号：US3860794A

公开(公告)日：1975-01-14

申请号：US40193073

申请日：1973-09-28

Applicant: BENDIX CORP

Inventor： KNOCKEART RONALD P ,  WILKINSON JOHN R

IPC: G06K7/10 ,  H03D1/04 ,  H03K5/08 ,  H03K5/00

CPC classification number: G06K7/10861 ,  H03D1/04 ,  H03K5/084 ,  H03K5/086 ,  H03K5/088

Abstract: An analog system for processing modulated reflected energy and producing a squarewave output representative of coded information causing the modulation is described. The modulation can be caused by reflecting energy from a segmented label coded by varying the widths of segments having different energy reflectives to define logic 1''s and 0''s. In such a usage, the inventive system produces a squarewave with maximum and minimum amplitudes determined by the segment reflectives and pulse widths proportional to the segment widths. The inventive system provides control of the pulse amplitudes and widths in the presence of noise. The inventive system also provides automatic gain control to compensate for variations in the output energy source, detector variations, power variations, and other internal system variations.

Abstract translation: 描述用于处理调制的反射能量并产生代表导致调制的编码信息的方波输出的模拟系统。 调制可以通过反射来自通过改变具有不同能量反射器的段的宽度编码的分段标签的能量来定义逻辑1和0来引起。 在这种用途中，本发明的系统产生一个方波，其中最大和最小振幅由段反射率和与段宽度成比例的脉冲宽度确定。 本发明的系统在存在噪声的情况下提供对脉冲幅度和宽度的控制。 本发明的系统还提供自动增益控制以补偿输出能量源，检测器变化，功率变化和其它内部系统变化的变化。