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    • 2. 发明授权
    • Universal host interface for data acquisition systems
    • 用于数据采集系统的通用主机接口
    • US6115678A
    • 2000-09-05
    • US255663
    • 1999-02-23
    • Robert LiebNicholas BuongervinoPatrick MauroMichael RizziEllen OppenheimJoseph BoriottiRobert MaySara KarcherAnthony BiusoPaul R. PoloniewiczDaniel BrownAnthony FamaRobert SteinCary ChuMichael CatalanoAltaf Mulla
    • Robert LiebNicholas BuongervinoPatrick MauroMichael RizziEllen OppenheimJoseph BoriottiRobert MaySara KarcherAnthony BiusoPaul R. PoloniewiczDaniel BrownAnthony FamaRobert SteinCary ChuMichael CatalanoAltaf Mulla
    • G06F3/00G06K7/00G06K17/00H03M5/06
    • G06K17/0022
    • A universal interface system for use with a data acquisition system including a data acquisition device such as a bar code scanner or scanner integrated terminal for providing digital data signals indicative of acquired data for transmission to a host device such as a computer, and a host device having host-specific input/output data format requirements. The universal interface system comprises universal data exchange means located in the data acquisition device for providing digital data signals in a universal data exchange format independent of the data format requirements of the host device; and a host interface cable coupled to the data acquisition device and to said host device, for transmitting acquired digital data from the data acquisition device to the host device, the interface cable comprising means for translating digital data from the universal data exchange format to the host-specific input/output data format requirements. The interface cable comprises a buffer for storing a host parameter data word used in communications with the host device. The universal data exchange means comprises a memory for storing a plurality of host parameter data words, each of the host parameter data words being associated with one of a plurality of different host interface modules; and means for reading from the memory and transmitting to the host interface module the host parameter data word associated with the particular host interface module operatively connected thereto.
    • 一种用于数据采集系统的通用接口系统,包括诸如条形码扫描器或扫描仪集成终端的数据采集装置,用于提供指示用于传送到诸如计算机的主机设备的获取数据的数字数据信号,以及主机设备 具有主机特定的输入/输出数据格式要求。 通用接口系统包括位于数据采集设备中的通用数据交换装置,用于以与主机设备的数据格式要求无关的通用数据交换格式提供数字数据信号; 以及主机接口电缆,其耦合到所述数据采集设备和所述主机设备,用于将所获取的数字数据从所述数据采集设备发送到所述主机设备,所述接口电缆包括用于将数字数据从通用数据交换格式转换到所述主机的装置 特定的输入/输出数据格式要求。 接口电缆包括用于存储与主机设备通信中使用的主机参数数据字的缓冲器。 通用数据交换装置包括用于存储多个主机参数数据字的存储器,每个主机参数数据字与多个不同的主机接口模块之一相关联; 以及用于从存储器读取并向主机接口模块发送与可操作地连接到其的特定主机接口模块相关联的主机参数数据字的装置。
    • 5. 发明授权
    • Bar code scanning system with the pre-decoding signal processing and
method for bar code candidate selection for decoding
    • 条码扫描系统具有预解码信号处理和条码候选选择方法进行解码
    • US5821520A
    • 1998-10-13
    • US910435
    • 1997-08-13
    • Altaf MullaAnthony FamaThomas BoehmDaniel BrownWilliam Sackett
    • Altaf MullaAnthony FamaThomas BoehmDaniel BrownWilliam Sackett
    • G06K7/14G06K7/110
    • G06K7/14
    • A system for processing output signals of an electro-optical scanner adapted for reading a bar code indicia having parts of different light reflectivity and non bar code indicia adjacent the bar code on an article being scanned comprises a decoder for decoding content of signals input thereto and signal processing circuitry for receiving the scanner output signals and generating input signals for input to the decoder by deleting signals having non bar code indicia content from the received scanner output signals by examining characteristics of the received scanner output signals. The signal processing circuitry is adapted to generate input signals for input to the decoder for bar code indicia of respective different bar code symbologies. The signal processing circuitry includes deletion circuitry for deleting, from the received scanner output signals, signals having less time duration than a predetermined time duration. The signal processing circuitry also includes one or both of first ratio computation means for computing a ratio of characteristics of adjacent of the received scanner output signals and second ratio computation means for computing a ratio of characteristics of non-adjacent of the received scanner output signals.
    • 一种用于处理适于读取具有不同光反射率的条形码标记的电光扫描仪的输出信号的系统,以及与所扫描的物品相邻的条形码的非条形码标记,包括用于对输入的信号的内容进行解码的解码器, 信号处理电路,用于通过检查所接收的扫描仪输出信号的特性,通过从接收到的扫描器输出信号中删除具有非条形码标记内容的信号,从而产生用于输入到解码器的输入信号。 信号处理电路适于产生用于输入到解码器的输入信号,用于各个不同条形码符号的条形码标记。 信号处理电路包括删除电路,用于从接收到的扫描仪输出信号中删除具有比预定持续时间更短的持续时间的信号。 信号处理电路还包括用于计算接收到的扫描仪输出信号的相邻特性的比率的第一比率计算装置中的一个或两个,以及用于计算接收到的扫描仪输出信号的不相邻特性的比率的第二比率计算装置。
    • 6. 发明授权
    • Interface arrangement for use with consumer devices
    • 用于消费者设备的接口布置
    • US5675139A
    • 1997-10-07
    • US761710
    • 1996-12-06
    • Anthony Fama
    • Anthony Fama
    • G06K7/10
    • G06K7/10881
    • A data processing system includes a head for electro-optically reading coded indicia to generate digital decoded data in a predetermined data exchange format. An interface arrangement is used for connecting the head to any selected one of a plurality of electronic devices having individual data processors. Thus, a common data exchange format is established for all the devices, and conversion circuitry is employed for converting the predetermined data exchange format to the common format. The conversion circuitry is operatively connected between the head and the selected device.
    • 数据处理系统包括用于电光读取编码标记的头以预定数据交换格式生成数字解码数据。 接口装置用于将头连接到具有各个数据处理器的多个电子设备中的任何一个选定的一个。 因此,为所有设备建立公共数据交换格式,并且采用转换电路将预定数据交换格式转换成通用格式。 转换电路可操作地连接在头部和所选择的装置之间。
    • 7. 发明授权
    • Laser scanner using two scan motors independently controlled by a single
signal
    • 激光扫描仪使用独立由单个信号控制的两个扫描电机
    • US5266787A
    • 1993-11-30
    • US640252
    • 1991-01-11
    • Thomas MazzAnthony FamaFrederick Helm
    • Thomas MazzAnthony FamaFrederick Helm
    • G06K7/10H02P5/46
    • G06K7/10851H02P5/46G06K2207/1016
    • A dual motor speed control circuit for providing independent speed control of two motors in a laser scanning device is disclosed herein. This apparatus utilizes a single input signal having variable frequency and duty cycle components. The speed of the first motor is controlled by utilizing the frequency component of said input signal while the speed of the second motor is controlled by utilizing the frequency and duty cycle components of said input signal. Specifically, a DC signal is generated that is dependent upon the duty cycle component of said input signal and said DC signal is utilized to offset the speed of the second motor from the speed value as determined by the frequency component of said input signal.
    • 本文公开了一种用于在激光扫描装置中提供两个电动机的独立速度控制的双电动机速度控制电路。 该装置利用具有可变频率和占空比分量的单个输入信号。 通过利用所述输入信号的频率分量来控制第一电动机的速度,同时通过利用所述输入信号的频率和占空比分量来控制第二电动机的速度。 具体地说,产生依赖于所述输入信号的占空比分量的DC信号,并且利用所述DC信号将第二电动机的速度与由所述输入信号的频率分量确定的速度值相抵消。