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1. 发明授权

US4236604A Start/stop control of conveying means 失效
标题翻译：传送装置的启动/停止控制
公开(公告)号：US4236604A
公开(公告)日：1980-12-02
申请号：US25725
申请日：1979-03-30
申请人： Robert A. Warner
发明人： Robert A. Warner
IPC分类号： A47F9/04 , B65G43/08 , G06K7/10
CPC分类号： G06K7/10871 , A47F9/04 , B65G43/08 , B65G2203/044
摘要： A start/stop control arrangement for material handling systems, particularly automated checkout systems in retail stores. From a beam sensing device at the delivery end of the incoming conveyor a control is derived not only for stopping the conveyor in response to the detection of the arrival at that end of a product but also a time control for automatically stopping the conveyor in response to no such product being detected by that device for a predetermined time. The arrangement may be incorporated in the amplifier unit which serves to amplify the output of the beam of the beam sensing device. Alternatively, and as shown herein, the arrangement may be implemented by a plug-in accessory module designed to be interposed between two cooperating plug-in modules--one of them mounting the above sensor amplifier--which provide for the first of these two controls only. Provisions are also made for double-using the arrangement for the start/stop control of the conveyor outgoing from the checkout stand.
摘要翻译：用于材料处理系统的启动/停止控制装置，特别是零售商店的自动化结帐系统。从输入输送机输送端的光束传感装置，不仅可以响应于检测到产品在该端的到达而停止传送带，而且还响应于自动停止输送机的时间控制该设备在预定时间内没有检测到这样的产品。该装置可以并入放大器单元中，其用于放大光束传感装置的光束的输出。或者，并且如本文所示，该布置可以通过设计成插入在两个协作插件模块之间的插入式附件模块来实现 - 其中一个安装上述传感器放大器，其仅提供这两个控制中的第一个。还规定了双重使用从结帐台输出的输送机的启动/停止控制的布置。

2. 发明授权

US07071452B2 Self-calibrating photoelectric control system 有权
公开(公告)号：US07071452B2
公开(公告)日：2006-07-04
申请号：US10975039
申请日：2004-10-28
申请人： Robert A. Warner , David L. Hanley
发明人： Robert A. Warner , David L. Hanley
IPC分类号： G01J1/42
CPC分类号： G01J1/32 , A47F9/04
摘要： A self-calibrating photoelectric control system for use in a checkstand to control the starting and stopping of a conveyer belt utilized to move products closer to a checkout clerk. The self-calibrating photoelectric control system including a light source for emitting a light beam having an intensity, a photoelectric sensor for receiving light from the light source and for generating an output signal when the received light is equal to or greater than a light-state threshold of the photoelectric sensor; and a calibration circuit for automatically calibrating the sensitivity of the photoelectric control system to partial beam breaks after occurrence of any one of a plurality of predefined events. The calibration circuit is operative for performing a calibration process which adjusts the intensity of the light beam emitted by the light source such that the intensity is slightly greater than the light-state threshold of the photoelectric sensor. By repeatedly performing the calibration process at selected times, the present invention optimizes the detection of objects that partially block the light beam, and thereby greatly enhances the system's ability to detect translucent and low-profile products.

3. 发明授权

US06950778B2 Programmable photoelectric sensor and a system for adjusting the performance characteristics of the sensor 有权
标题翻译：可编程光电传感器和用于调节传感器性能特点的系统
公开(公告)号：US06950778B2
公开(公告)日：2005-09-27
申请号：US10174488
申请日：2002-06-19
申请人： Robert Warner , Scott Seehawer , Daniel Hacquebord
发明人： Robert Warner , Scott Seehawer , Daniel Hacquebord
IPC分类号： G01V8/10 , G01V13/00 , G06F17/00
CPC分类号： G01V8/10 , G01V13/00
摘要： A programmable photoelectric sensor and a system for programming/controlling the photoelectric sensor and for monitoring the performance of the photoelectric sensor. The system includes a processor coupled to the photoelectric sensor, which is operative for generating at least one graphical user interface and for programming/adjusting the operation of the photoelectric sensor; and a display device coupled to the processor for displaying the graphical user interface. The processor programs/adjusts the operation of the photoelectric sensor in accordance with selections of an operator utilizing icons displayed on the graphical user interface.
摘要翻译：可编程光电传感器和用于编程/控制光电传感器并监测光电传感器性能的系统。该系统包括耦合到光电传感器的处理器，该处理器用于产生至少一个图形用户接口并用于编程/调整光电传感器的操作; 以及耦合到所述处理器以用于显示所述图形用户界面的显示设备。处理器根据使用图形用户界面上显示的图标的操作员的选择来对光电传感器的操作进行编程/调整。

4. 发明授权

US5621205A Photoelectric sensor having an enhanced dynamic range control circuit 失效
标题翻译：光电传感器具有增强的动态范围控制电路
公开(公告)号：US5621205A
公开(公告)日：1997-04-15
申请号：US631882
申请日：1996-04-16
申请人： Robert A. Warner , Grant L. Smith
发明人： Robert A. Warner , Grant L. Smith
IPC分类号： G01J1/32 , G01J1/44 , H01J40/14
CPC分类号： G01J1/44 , G01J1/32
摘要： The disclosed invention is a photoelectric sensor that is capable of resolving difficult low contrast sensing tasks by adjustment of the sensor's light source intensity, so as to prevent dark state saturation and extend the overall dynamic range of the sensor. The photosensor utilizes an enhanced dynamic (EDR.TM.) control circuit that combines the light source and offset adjustment of the DC amplifier circuit in a closed loop configuration. This connection provides an automatic reduction in the light source intensity as required to avoid saturation. Further, this is accomplished without sacrificing amplifier gain, so that the dynamic operating range of the photosensor is extended to include proper operation at very bright light levels. The EDR control circuit also includes an indicator circuit that is connected to the light intensity control circuit. The indicator circuit provides the user an indication of where in the overall dynamic range of the photosensor the offset adjustment of the DC amplifier has been set.
摘要翻译：所公开的发明是能够通过调整传感器的光源强度来解决困难的低对比度感测任务的光电传感器，以便防止暗态饱和并延长传感器的整体动态范围。光电传感器利用增强型动态（EDR TM）控制电路，其将闭环配置中的DC放大器电路的光源和偏移调整组合。该连接提供了光源强度的自动降低，以避免饱和。此外，这是在不牺牲放大器增益的情况下实现的，使得光电传感器的动态工作范围被扩展到包括在非常亮的光级下的适当的操作。 EDR控制电路还包括连接到光强度控制电路的指示电路。指示器电路为用户提供了在光电传感器的整个动态范围中哪里已经设置了直流放大器的偏移调整的指示。

5. 发明授权

US4644341A Contrast indicating arrangement in photoelectric sensing systems 失效
标题翻译：光电传感系统中的对比指示布置
公开(公告)号：US4644341A
公开(公告)日：1987-02-17
申请号：US627853
申请日：1984-07-05
申请人： Robert A. Warner
发明人： Robert A. Warner
IPC分类号： G01P1/08 , G01P3/486 , G01R13/40 , G09G3/00
CPC分类号： G01P3/486 , G01P1/08 , G01R13/405
摘要： A photoelectric sensing system, the adjustment of which is facilitated by the incorporation therein of a contrast indicator with a display in the form of an array of light emitting diodes (LEDs) controlled by a driver circuit which is arranged for successive illumination of the LEDs, preferably on a one-to-one basis. This bargraph type instrument is also effective in photoelectric sensing tasks involving variations of the detected light between "light" and "dark" at a rapid rate, in which case the range of LEDs between these two extremes appears dimly lit at a steady glow.
摘要翻译：一种光电传感系统，其调整方式是通过结合一个对比度指示器来实现，该对比度指示器具有由驱动电路控制的发光二极管阵列（LED）形式的显示器，驱动器电路被布置成用于LED的连续照明，优选地在一对一的基础上。这种条形仪式在光电检测任务中也是有效的，涉及到以“快”和“暗”之间的检测光的变化，在这种情况下，这两个极值之间的LED的范围在稳定的光照下显得昏暗。

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