Digital display verification
    1.
    发明授权
    Digital display verification 失效
    数字显示验证

    公开(公告)号:US4307392A

    公开(公告)日:1981-12-22

    申请号:US104276

    申请日:1979-12-17

    CPC分类号: G09G3/006 G06F11/162 G09G3/14

    摘要: A scale is disclosed which includes a digital display unit for conveying information. A display verification method and system are employed for determining whether a plurality of information conveying segments forming the indicators of the display unit are properly conveying information. Individual segments of the display unit are operated under control of a microprocessor. Segment status determining circuitry determines the operative status of each of the segments by sequentially monitoring a voltage drop indicative of the current passing through an LED comprising that segment. The status determining circuitry produces status information which is stored in the microprocessor memory and compared with data indicative of the information the display should convey if it is properly functioning. If the comparison indicates that one of the segments is not properly conveying the information, warning messages are displayed which indicate maintenance procedures are required. If all segments are correctly displaying information, the verification procedure is repeated.

    摘要翻译: 公开了一种包括用于传送信息的数字显示单元的标尺。 使用显示验证方法和系统来确定形成显示单元的指示符的多个信息传送段是否正确地传达信息。 显示单元的各个段在微处理器的控制下操作。 段状态确定电路通过依次监视指示通过包含该段的LED的电流的电压降来确定每个段的操作状态。 状态确定电路产生存储在微处理器存储器中的状态信息,并与指示如果显示器正常工作时显示应该传送的信息的数据进行比较。 如果比较表明其中一个段未正确传送信息,则显示警告消息,指示需要维护过程。 如果所有段正确显示信息,则重复验证过程。

    Digital scale
    2.
    发明授权

    公开(公告)号:US4236222A

    公开(公告)日:1980-11-25

    申请号:US3234

    申请日:1979-01-15

    CPC分类号: G01G23/163 G01G19/414

    摘要: The invention relates to a scale system which employs a microcomputer forming an integral part of the analog to digital conversion means in which the microcomputer controls the sequence of operations for performing the conversion, accumulates and stores digital data derived during the conversion of the analog signal and combines and processes that data to provide the digital output data resulting from the conversion, all in addition to performing other scale functions. The invention relates to an improved multicapacity weighing and computing digital scale having a triple slope analog-to-digital conversion means. The analog weight signal is integrated for a time interval which is fixed for a given scale capacity range which would generate substantially the same integrator output level in response to a full capacity weight signal for the selected scale capacity as would be generated by a full capacity weight for all other scale capacities. In accordance with the invention, the time interval during which the first reference DC source is integrated is extended beyond the detection of the crossover of the integrator output with its reference level. The invention also provides an improved weight filtering arrangement which enables the full advantage of the improved converter to be obtained. The invention further provides for the tracking of the net zero indication by modification of the stored tare weight data by a predetermined amount to decrease the absolute value of the net weight in response to the net weight being within a preselected weight range.

    Digital scale with antifraud features
    3.
    发明授权
    Digital scale with antifraud features 失效
    带防盗功能的数字秤

    公开(公告)号:US4159521A

    公开(公告)日:1979-06-26

    申请号:US729911

    申请日:1976-10-05

    摘要: Improved electronic apparatus for weighing and computing the value from the weight and price per unit weight, for each of a plurality of successive weighing operations. An integrated circuit microcomputer is supplied with the article weight from a load cell and an analog-to-digital converter. The price per unit weight is supplied from a manual keyboard. The microcomputer includes as an arithmetic logic unit, data registers and sequence controller which is programmed to correct for scale errors, to check for no motion of the scale, to compensate the measured gross weight for any tare weight, to check various interlocks, and to compute an article value for each successive weighing. Null or zeroing and tare interlocks, checks, and safeguards are provided to reduce the possibility of fraud.

    摘要翻译: 改进的电子设备,用于对多个连续加权操作中的每一个进行称重和计算每单位重量的重量和价格的值。 从称重传感器和模数转换器向集成电路微型计算机提供物品重量。 每单位重量的价格由手动键盘提供。 该微计算机包括作为算术逻辑单元的数据寄存器和序列控制器,其被编程以校正刻度误差,以检查标尺的运动,以补偿任何皮重的测量毛重,以检查各种互锁,以及 计算每个连续称量的物品值。 提供零或归零和去皮互锁,支票和保障措施以减少欺诈的可能性。

    Scale with manual tare entry
    4.
    发明授权
    Scale with manual tare entry 失效
    用手动皮重进入秤

    公开(公告)号:US3962570A

    公开(公告)日:1976-06-08

    申请号:US573150

    申请日:1975-04-30

    CPC分类号: G06Q30/04 G01G19/415

    摘要: Improved electronic apparatus for weighing, computing a value and printing a label showing the weight, the price per unit weight and the computed value of each of a plurality of successive articles. A microcomputer is supplied with the article weight from a load cell scale and with the price per unit weight either from a manual keyboard or automatically from a commodity plate in a label printer. Tare weight is entered through a plurality of switches, each of which represents a different tare weight. When one of the tare switches is actuated, a timer is started. If a second tare switch is then pushed before a predetermined time interval is measured by the timer, the tare weight represented by the two switches are added together to obtain the total tare weight. After the system corrects for zero error, checks for scale motion, compensates for the total entered tare weight and checks various interlocks, the microcomputer computes an article value and causes a label to be printed. A digital indicator is provided for displaying the net article weight obtained from the measured gross article weight less the zero error correction factor and the total entered tare weight.

    摘要翻译: 改进的电子设备,用于称重,计算值并打印显示重量的标签,每单位重量的价格和多个连续物品中的每一个的计算值。 微型计算机从称重传感器秤提供物品重量,并以单位重量的价格从手动键盘或标签打印机中的商品板自动提供。 皮重通过多个开关进入,每个开关代表不同的皮重。 当其中一个皮重开关被启动时,启动定时器。 如果在由定时器测量预定时间间隔之前推动第二皮重开关,则由两个开关表示的皮重加在一起以获得总重量。 系统校正零误差后,检查比例运动,补偿进入皮重的总重量,并检查各种互锁,微机计算物品值,并打印标签。 提供数字指示器,用于显示从测量的总物品重量获得的净物品重量减去零误差校正因子和总进入的皮重。

    Digital scale
    5.
    发明授权
    Digital scale 失效
    数字刻度

    公开(公告)号:US4204197A

    公开(公告)日:1980-05-20

    申请号:US824858

    申请日:1977-08-15

    摘要: The invention relates to a scale system which employs a microcomputer forming an integral part of the analog to digital conversion means in which the microcomputer controls the sequence of operations for performing the conversion, accumulates and stores digital data derived during the conversion of the analog signal and combines and processes that data to provide the digital output data resulting from the conversion, all in addition to performing other scale functions. The invention relates to an improved multicapacity weighing and computing digital scale having a triple slope analog-to-digital conversion means. The analog weight signal is integrated for a time interval which is fixed for a given scale capacity range which would generate substantially the same integrator output level in response to a full capacity weight signal for the selected scale capacity as would be generated by a full capacity weight for all other scale capacities. In accordance with the invention, the time interval during which the first reference DC source is integrated is extended beyond the detection of the crossover of the integrator output with its reference level. The invention also provides an improved weight filtering arrangement which enables the full advantage of the improved converter to be obtained. The invention further provides for the tracking of the net zero indication by modification of the stored tare weight data by a predetermined amount to decrease the absolute value of the net weight in response to the net weight being within a preselected weight range.

    摘要翻译: 本发明涉及一种比例系统,其采用微型计算机,其形成模数转换装置的一部分,其中微机控制用于执行转换的操作序列,累积并存储在模拟信号的转换期间导出的数字数据;以及 组合和处理该数据以提供从转换产生的数字输出数据,所有这些都是执行其他比例功能。 本发明涉及具有三重斜率模数转换装置的改进的多容量称重和计算数字刻度。 模拟权重信号被积分一个时间间隔,该时间间隔对于给定的标度容量范围是固定的,该时间间隔响应于所选择的标度容量的满容量权重信号而产生基本上相同的积分器输出电平,如将由全容量权重产生的 适用于所有其他规模的能力。 根据本发明,集成了第一参考直流电源的时间间隔超出了积分器输出与其参考电平的交叉的检测。 本发明还提供一种改进的重量滤波装置,其能够获得改进的转换器的充分优势。 本发明进一步提供了通过将所存储的皮重数据修改预定量来跟踪净零点指示,以减小净重在响应于预先选定的重量范围内的净重的绝对值。

    Digital scale
    6.
    发明授权
    Digital scale 失效
    数字刻度

    公开(公告)号:US4181946A

    公开(公告)日:1980-01-01

    申请号:US828041

    申请日:1977-08-25

    CPC分类号: G01G19/414 G01G23/3707

    摘要: The invention relates to a scale system which employs a microcomputer forming an integral part of the analog to digital conversion means in which the microcomputer controls the sequence of operations for performing the conversion, accumulates and stores digital data derived during the conversion of the analog signal and combines and processes that data to provide the digital output data resulting from the conversion, all in addition to performing other scale functions. The invention relates to an improved multicapacity weighing and computing digital scale in which switch means are provided to change the weight indication from pounds to kilograms and visa versa at any time either before or during a weighing operation. Provision is made to also convert all the weight limits and any stored tare weight. In addition, the unit price and total price or value display is either cleared or else converted from price per pound to price per kilogram and the total price recomputed.

    摘要翻译: 本发明涉及一种比例系统,其采用微型计算机,其形成模数转换装置的一部分,其中微机控制用于执行转换的操作序列,累积并存储在模拟信号的转换期间导出的数字数据;以及 组合和处理该数据以提供从转换产生的数字输出数据,所有这些都是执行其他比例功能。 本发明涉及一种改进的多容量称重和计算数字秤,其中提供开关装置以在称重操作之前或期间随时将重量指示从磅改为千克,反之亦然。 还规定了所有重量限制和任何存储的皮重。 此外,单价和总价格或价值显示被清算,或者从每磅价格转换为每公斤价格,并重新计算总价。

    Digital weight measuring and computing apparatus with automatic zero
correction
    7.
    发明授权
    Digital weight measuring and computing apparatus with automatic zero correction 失效
    具有自动零点校正功能的数字式重量测量和计算装置

    公开(公告)号:US3986012A

    公开(公告)日:1976-10-12

    申请号:US573149

    申请日:1975-04-30

    CPC分类号: G01G19/415

    摘要: This invention relates to an improved digital weight measuring and computing apparatus with automatic zero correction which automatically corrects the zero indication of the apparatus.The weight measuring apparatus comprises a scale which employs a load cell and strain gauge to develop an analog voltage representing the weight on the scale. An analog-to-digital converter is then employed to change the analog voltage into a digital representation of the load on the scale. The digital converter provides a digital indication in addition to the digital indications employed to indicate the weight on the scale. The additional digital indication represents fractions of the least weight increment indicated of the weight on the scale. The additional digital indication is then employed to control the generation of a zero correction factor and this factor is then combined with the weight indications from the scale to indicate the correct weight of articles placed on the scale. The corrected weight in combination with the unit price of the article placed on the scale is then employed to compute the value of the article on the scale.

    摘要翻译: 本发明涉及一种具有自动零点校正的改进的数字重量测量和计算装置,其自动校正装置的零指示。

    Value computing scale
    8.
    发明授权
    Value computing scale 失效
    价值计算规模

    公开(公告)号:US3962569A

    公开(公告)日:1976-06-08

    申请号:US573147

    申请日:1975-04-30

    IPC分类号: G01G19/415 G01G19/413

    CPC分类号: G01G19/415 Y10S177/03

    摘要: Improved electronic apparatus for weighing, computing a value and printing a label showing the weight, the price per unit weight and the computed value of each of a plurality of successive commodities. An integrated circuit microcomputer is supplied with the article weight from a load cell scale and with the price per unit weight either from a manual keyboard or automatically from a commodity plate in a label printer. The microcomputer includes an arithmetic logic unit, data registers and a sequence controller which is programmed to cause the microcomputer to correct for scale errors, to check for no motion of the scale, to compensate the measured gross weight for any tare weight, to check various interlocks, to compute an article value and to cause a label to be printed for the article. Input data to the microcomputer and output data from the microcomputer is multiplexed through interface circuitry. Weight data from the microcomputer is supplied to a digital indicator and weight, price per unit weight and value data from the microcomputer is supplied to the printer. The keyboard includes a lock switch which must be manually actuated after new price data is supplied to the microcomputer to enable the microcomputer to supply the calculated value data for the weighed commodities to the printer.

    摘要翻译: 改进的用于称重,计算价值并打印显示重量的标签的电子设备,每单位重量的价格和多个连续商品中的每一个的计算值。 集成电路微型计算机从称重传感器秤提供物品重量,并且以单位重量的价格从手动键盘或标签打印机中的商品板自动提供。 该微型计算机包括算术逻辑单元,数据寄存器和序列控制器,该程序控制器被编程为使得微计算机校正刻度误差,检查标尺的运动,以补偿任何皮重的测量毛重,以检查各种 互锁,以计算物品价值并使文章打印标签。 通过接口电路对微机的输入数据和微机输出数据进行复用。 来自微型计算机的重量数据被提供给数字指示器,重量,单位重量的价格和来自微型计算机的数值数据被提供给打印机。 键盘包括一个锁定开关,在将新的价格数据提供给微型计算机之后,必须手动启动,以便微型计算机将计算的重量商品的数据数据提供给打印机。

    Data filtering circuitry
    9.
    发明授权
    Data filtering circuitry 失效
    数据滤波电路

    公开(公告)号:US3937287A

    公开(公告)日:1976-02-10

    申请号:US461518

    申请日:1974-04-17

    CPC分类号: G01G19/415 G01G23/163

    摘要: Improved apparatus for weighing and computing a value for articles. An integrated circuit microcomputer is supplied with the gross article weight from a scale and with price per unit weight data from a manual keyboard. Tare weight data may be entered either through the manual keyboard or automatically from the scale. The microcomputer computes a net weight and a value for each weighed article. The net weight, the price per unit weight and the value are indicated on a digital display and may be printed on a label. Filtering circuitry prevents jitter in the article weight supplied from the scale to the microcomputer and the display caused by small vibrations in the article or the scale.

    摘要翻译: 改进的用于称重和计算物品价值的设备。 集成电路微型计算机从标尺提供总物品重量,并从手动键盘提供每单位重量数据的价格。 皮重数据可以通过手动键盘输入,也可以从秤上自动输入。 微机计算每个称重物品的净重和值。 净重,每单位重量的价格和价值在数字显示屏上显示,并可印在标签上。 过滤电路可以防止由于物品或秤中微小的振动引起的秤上的物品重量与微型计算机和显示器的抖动。