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    • 1. 发明授权
    • Automatic identification of hardware
    • 自动识别硬件
    • US5767500A
    • 1998-06-16
    • US597694
    • 1996-02-06
    • Kevin CordesEllen OppenheimDonna PandolfoRobert MayJoseph CampanelliThomas Bianculli
    • Kevin CordesEllen OppenheimDonna PandolfoRobert MayJoseph CampanelliThomas Bianculli
    • G06K7/10
    • G06K7/10881G06K7/1098
    • A hardware identification system is provided in a bar code reading arrangement including a main body and a plurality of modular detachable scanning heads connectable to the main body dependent on the application desired for the reader. Each of the heads includes a voltage divider dividing identification voltage and the main body includes a microprocessor including an analog to digital converter which reads the identification voltage, converts it to a digital signal and compares the identification voltage against a look-up table of identification voltages and their associated hardware element to identify the module type. Alternatively, or in addition, the module may be similarly configured to identify the main body by virtue of an identification voltage defined by a voltage divider in the main body. Alternatively the hardware identification system includes an electronic subassembly such as a PC board used for example in computer systems for automatic identification of hardware.
    • 在条形码读取装置中提供硬件识别系统,该系统包括主体和多个可连接到主体的可拆卸扫描头,取决于读取器所需的应用。 每个头包括分压器分隔识别电压,并且主体包括微处理器,其包括读取识别电压的模数转换器,将其转换为数字信号,并将识别电压与识别电压的查找表进行比较 及其相关联的硬件元素来标识模块类型。 或者或另外,模块可以类似地构造成通过由主体中的分压器限定的识别电压来识别主体。 或者,硬件识别系统包括电子子组件,例如用于例如用于自动识别硬件的计算机系统中的PC板。
    • 4. 发明授权
    • Optical scanners
    • 光学扫描仪
    • US06209788B1
    • 2001-04-03
    • US09436468
    • 1999-11-08
    • Raj BridgelallEdward BarkanStephen ShellhammerJoseph CampanelliJoseph KatzYajun LiDaniel R. McGlynn
    • Raj BridgelallEdward BarkanStephen ShellhammerJoseph CampanelliJoseph KatzYajun LiDaniel R. McGlynn
    • G06K710
    • G06K7/10851G06K7/14G06K7/1452G06K7/1478
    • An optical scanning system is provided for producing a signal representative of a spatial distribution of indicia having different degrees of reflectivity to light, such as a bar code (14). The system includes an optical scanner (12) for scanning beam of light over the spatial distribution of indicia (14) and for producing an electrical signal corresponding to changes in the degree of reflectivity of the indicia. A digitizer (20), responsive to detections in a predetermined characteristic of the produced electrical signal is provided. The digitizer (20) converts the detections into digital words, such digital signals having a plurality of bits. The digitizer includes a timing generation circuit (42) for producing a pulse in response to each one of the detections with a time duration representative of the degree of reflectivity of the indicia as the beam of light. A decoder converts the time duration of the pulse into the digital word having a plurality of bits. An enhancement filter (30) is also disclosed. The enhancement filter (30) modifies pulses produced by a differentiator circuit (24) used in the scanner. Such modification includes increasing the rise time, and peak level of, the pulses produced by the differentiator circuit (24).
    • 提供了一种光学扫描系统,用于产生表示具有不同光反射度的标记的空间分布的信号,例如条形码(14)。 该系统包括用于在标记(14)的空间分布上扫描光束并用于产生对应于标记的反射度的变化的电信号的光学扫描器(12)。 提供了响应于所产生的电信号的预定特性中的检测的数字转换器(20)。 数字转换器(20)将检测转换为数字字,这样的数字信号具有多个位。 数字转换器包括一个定时产生电路(42),用于响应于每个检测产生一个脉冲,时间间隔代表作为光束的标记的反射率。 解码器将脉冲的持续时间转换为具有多个位的数字字。 还公开了增强滤波器(30)。 增强滤波器(30)修改由扫描器中使用的微分电路(24)产生的脉冲。 这种修改包括增加由微分电路(24)产生的脉冲的上升时间和峰值电平。
    • 8. 发明授权
    • Device for directing a premises alarm panel to a backup radio network upon detection of use of the PSTN by another premises device
    • 用于在检测到另一房屋设备使用PSTN时将房屋报警面板引导到备用无线电网络的设备
    • US06825762B2
    • 2004-11-30
    • US10303693
    • 2002-11-25
    • Daniel GiacopelliJeffrey M. HickeyJoseph Campanelli
    • Daniel GiacopelliJeffrey M. HickeyJoseph Campanelli
    • G08B100
    • G08B25/10G08B25/004
    • A device for redirecting alarm-messaging from an alarm control panel from its connection to the PSTN to a backup radio transceiver for transmission of the alarm signaling to a central alarm station via a radio network. The switch-over to the radio network occurs not only when the PSTN line is down, for whatever reason, but also occurs when the PSTN line is already occupied by an existing transmission by a premises' telephones, in order to allow the user to make a call over the PSTN during such an alarm condition. Moreover, if during the time the alarm control panel is transmitting its alarm messages over the PSTN, a premises' telephone goes off-hook, the device of the invention terminates the alarm panel's connection to the PSTN and automatically switches over the alarm panel to the radio backup system.
    • 一种用于将报警控制面板从其连接到PSTN的报警消息转发到备用无线电收发器的装置,用于经由无线电网络将报警信号传输到中央报警站。 无线电网络的切换不仅出于任何原因而在PSTN线路关闭时发生,而且当PSTN线路已经由房屋的电话机已经被现有的传输占用时发生,以便允许用户进行 在这样的报警状态下通过PSTN通话。 此外,如果在报警控制面板通过PSTN发送其报警信息的时间内,房屋的电话摘机,本发明的设备终止了报警面板与PSTN的连接,并自动将报警面板切换到 无线电备份系统。