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公开(公告)号：US4017828A
公开(公告)日：1977-04-12
申请号：US594799
申请日：1975-07-10
CPC分类号： H04L1/02
摘要： A redundancy system for data communications upon two duplicate communication channels, each having transmission and reception circuits, characterized by a switching circuit for selecting one of said two communication channels, a single error detection circuit for detecting an error in the signal transmitted, and a control circuit for the switching circuit arranged to cause said two communication channels to alternately transmit signals when both the channels are in normal operation, and to cause one of said two channels to be selected when the other fails. The two channels share the error detection circuit and the control circuit and can therefore be built at a reduced cost and operated efficiently. Since the two channels are regularly checked for errors, they are operated with increased reliability.
摘要翻译： 一种用于在两个重复通信信道上进行数据通信的冗余系统，每个具有发送和接收电路，其特征在于用于选择所述两个通信信道之一的切换电路，用于检测发送的信号中的错误的单个错误检测电路和控制 所述开关电路被布置成当两个信道都处于正常操作时使所述两个通信信道交替发送信号，并且当另一个信道失败时，使所述两个信道之一被选择。 两个通道共享错误检测电路和控制电路，因此可以降低成本并有效地运行。 由于定期检查两个通道的错误，因此可靠性更高。
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公开(公告)号：US4046959A
公开(公告)日：1977-09-06
申请号：US693689
申请日：1976-06-07
CPC分类号： H04L12/403 , H04B10/802
摘要： A data communication system comprising a master station and n number of substations, each substation comprising a receiving photocoupler and a transmission photocoupler, and wherein a particular substation may be connected into a transmission line leading to the master station by connecting the receiving photocoupler in series in parallel circuit to the transmission line and wherein data transmission from the master station to the substation is accomplished by means of a current supplied forward with respect to the receiving photocoupler of the substation, and data transmission from the substation to the master station is done by means of a current supplied reverse with respect to the transmission photocoupler of the substation.
摘要翻译： 一种包括主站和n个变电站的数据通信系统，每个变电站包括接收光电耦合器和传输光电耦合器，并且其中特定变电站可以通过将接收光电耦合器串联连接到通向主站的传输线路 并行电路，其中从主站到变电站的数据传输是通过相对于变电站的接收光电耦合器向前提供的电流完成的，并且从变电站到主站的数据传输是通过装置 相对于变电站的传输光电耦合器反向提供的电流。
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公开(公告)号：US5513347A
公开(公告)日：1996-04-30
申请号：US432731
申请日：1994-11-01
摘要： A data transfer system for transferring a transfer frame including a plurality of character codes representing a numeral of numerical data to be transferred, error detection data including a parity code for the character codes and a predetermined transfer control code to a controller on a receiver side from a controller on a sender side. In the controller on the sender side, a parity code obtained for the character codes is divided into a plurality of bit groups, a predetermined code which does not coincide with the predetermined transfer control code is affixed to each divided bit group to form divided parity data having a specific number of bits, and the transfer frame is constituted with these plural divided parity data as the error detection data. In the controller on the receiver side, the original parity code is restored from a plurality of divided parity data in the received transfer frame and is used.
摘要翻译： PCT No.PCT / JP88 / 00378 Sec。 371日期：1994年11月1日 102（e）日期1994年11月1日PCT提交1988年4月15日PCT公布。 出版物WO88 / 08233 日期：1988年10月20日。一种数据传送系统，用于传送包括表示要传送的数字数据的数字的多个字符代码的传送帧，包括用于字符代码的奇偶校验码和预定的传送控制代码的错误检测数据 来自发送器侧的控制器的接收器侧的控制器。 在发送侧的控制器中，将针对字符代码获得的奇偶校验码划分为多个位组，将与预定的传送控制代码不一致的预定代码附加到每个划分的位组，以形成分割奇偶校验数据 具有特定数量的位，并且传送帧由这些多个划分的奇偶校验数据构成作为错误检测数据。 在接收机侧的控制器中，使用接收到的传送帧中的多个划分的奇偶校验数据来恢复原始奇偶校验码。
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公开(公告)号：US5008665A
公开(公告)日：1991-04-16
申请号：US569534
申请日：1990-08-20
CPC分类号： G01B21/02 , G01B3/205 , G08C17/00 , G05B2219/33207 , G05B2219/37095
摘要： A measuring device having a transmitter includes a measuring device section, a data processing unit, a transmitter, and a casing. The measuring device section converts measuring data into a digital value and outputs it. The data processing unit arranges the measurement data obtained in the measuring device section in a transmission data string having a predetermined format and outputs it. The transmitter transmits the transmission data, which is output from the data processing unit, by radio transmission. The transmitter is housed in the casing, which is attached to a portion near an operation section of the measuring device section, together with the data processing unit. An antenna output terminal of the transmitter is connected to the casing or a conductor portion near the casing.
摘要翻译： PCT No.PCT / JP88 / 00377 Sec。 371日期：1988年12月14日 102（e）日期1988年12月14日PCT提交1988年4月15日PCT公布。 出版物WO88 / 08184 日期：1988年10月20日。具有发射机的测量装置包括测量装置部分，数据处理单元，发射器和壳体。 测量设备部分将测量数据转换为数字值并输出。 数据处理单元将在测量装置部分中获得的测量数据布置在具有预定格式的传输数据串中并将其输出。 发射机通过无线电传输发送从数据处理单元输出的发送数据。 变送器与数据处理单元一起安装在壳体中，该壳体附接到测量装置部分的操作部分附近的部分。 变送器的天线输出端子连接到壳体或壳体附近的导体部分。
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公开(公告)号：US5023438A
公开(公告)日：1991-06-11
申请号：US440764
申请日：1989-11-24
CPC分类号： G06K7/10881 , G07G1/00
摘要： A portable data input apparatus comprises an elongated casing. A pen-scanner type bar code reader reads a bar code provided according to the kind of a commodity, and outputs a corresponding code data unit. A keyboard is designed to input at least a numerical data unit representative of the amount of the commodity. A display device displays the code data unit and the numerical data unit. A display mode changing circuit is designed to invert the image of the data units displayed on the display device in the vertical direction and the horizontal direction, in response to a detection signal, which is output when the code data and numerical data are inversely displayed.
摘要翻译： 便携式数据输入装置包括细长的外壳。 笔式扫描仪型条形码读取器读取根据商品种类提供的条形码，并输出相应的代码数据单元。 键盘被设计为至少输入代表商品数量的数字数据单元。 显示装置显示代码数据单元和数字数据单元。 响应于在代码数据和数字数据被反向显示时输出的检测信号，设计显示模式改变电路来反转在垂直方向和水平方向上显示在显示装置上的数据单元的图像。
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公开(公告)号：US5278551A
公开(公告)日：1994-01-11
申请号：US42919
申请日：1993-04-06
CPC分类号： G06Q30/04 , G01D4/006 , Y02B90/243 , Y04S20/325
摘要： A meter at each user's house has a bar-coded user number shown thereon, and has a display section for displaying a reading. A data input terminal unit has a bar code reader for reading the user number and a keyboard for manually inputting a present reading. A data recording controller has a meter reading data file having a present reading for each user number. The data input terminal unit radio-transmits a read user number to the data recording controller and radio-receives a previous reading, corresponding to the user number, from said data recording controller. The data input terminal unit computes the amount used from this previous reading and the present reading manually input, and causes a printer to print meter reading data including this used amount on a reading slip while radio-transmitting it to the data recording controller.
摘要翻译： 在每个用户的房子上的一个仪表具有在其上显示的条形码用户号码，并且具有用于显示读数的显示部分。 数据输入终端单元具有用于读取用户号码的条形码读取器和用于手动输入当前读数的键盘。 数据记录控制器具有每个用户号码具有当前读数的抄表数据文件。 数据输入终端单元从数据记录控制器向数据记录控制器无线发送读取用户号码，并对与用户号码相对应的无线电接收先前的读取。 数据输入终端单元计算从先前读取的数量和手动输入的当前读数，并且使打印机在将数据记录控制器无线发送的同时，将包含该使用量的读数数据打印在读取纸上。
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公开(公告)号：US5065003A
公开(公告)日：1991-11-12
申请号：US491856
申请日：1990-03-12
CPC分类号： H01Q1/2208 , G06F15/0225 , G06F15/0283 , G06K17/0022 , G06K7/10881 , H01Q1/08 , H04M1/2755 , H04M1/725
摘要： A casing of a portable data input/transmission apparatus has an end portion, the size of which is determined such that the end portion can be held by one hand. A pen-scanner type bar code reader for reading a bar code is attached to one end of the casing in the longitudinal direction. A keyboard for enabling at least numerical data to be input is attached near the other end of the casing in the longitudinal direction. A transmitter/receiver is stored within the casing, the transmitter/receiver being designed to output wirelessly to an external data processing apparatus code data read by the bar code reader and at least numerical data input from the keyboard. A pair of antenna-containing grooves are formed in a pair of facing side surfaces extending in the longitudinal direction of the casing, such that the grooves extend in the longitudinal direction of the casing to said other end of the casing. An antenna is provided such that it is freely inserted into and drawn from the antenna-containing grooves from the other end of the casing, the antenna being formed of a substantially U-shaped, electrically conductive elastic material and being fitted in the grooves by virtue of the elastic force of the antenna.
摘要翻译： 便携式数据输入/传输装置的壳体具有端部，其尺寸被确定为可以用一只手握持端部。 用于读取条形码的笔式扫描器型条形码读取器沿纵向方向附接到壳体的一端。 至少能够输入数字数据的键盘被附加在壳体的纵向另一端的附近。 发送器/接收器存储在外壳内，发送器/接收器被设计成无线地输出到由条形码读取器读取的外部数据处理设备代码数据和至少从键盘输入的数字数据。 一对天线容纳槽形成在沿着壳体的纵向方向延伸的一对相对侧面中，使得槽沿壳体的纵向方向延伸到壳体的另一端。 天线被设置成使得它能够从壳体的另一端自由插入并从天线容纳槽中抽出，该天线由大致U形的导电弹性材料形成，并且通过美观装配在槽中 的天线弹力。
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公开(公告)号：US4924482A
公开(公告)日：1990-05-08
申请号：US346360
申请日：1989-04-28
摘要： The analog data representing a value measured of a product by means of a measuring device such as a vernier calipers is converted into digital data by an analog-to-digital converter. A CPU incorporates the digital data into a data message. The CPU is driven by a clock signal output from a quartz crystal oscillator. A first frequency divider divides the clock signal, thus generating a signal of a first frequency, and a second frequency divider divides the clock signal, thereby generating a signal of a second frequency. During the duration of each digital data signal at the "0" (low) level, the CPU generates a signal at the "low" or "high" level, in accordance with the signal generated by the first frequency divider. Similarly, during the duration of each digital data signal at the "1" (high) level, the CPU generates a signal at the "low" or "high" level, in accordance with the signal generated by the second frequency divider. The signals generated by the CPU are supplied to a transmitter. The transmitter transmits these signals to an external apparatus, in the form of a radio message.
摘要翻译： 通过诸如游标卡尺的测量装置表示产品测量值的模拟数据通过模拟 - 数字转换器转换成数字数据。 CPU将数字数据并入数据消息。 CPU由从石英晶体振荡器输出的时钟信号驱动。 第一分频器分频时钟信号，从而产生第一频率的信号，第二分频器对时钟信号进行分频，从而产生第二频率的信号。 在每个数字数据信号在“0”（低）电平的持续时间期间，CPU根据由第一分频器产生的信号产生处于“低”或“高”电平的信号。 类似地，在“1”（高）电平的每个数字数据信号的持续时间期间，CPU根据由第二分频器产生的信号产生处于“低”或“高”电平的信号。 由CPU产生的信号被提供给发射机。 发射机以无线电消息的形式将这些信号发送到外部设备。
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公开(公告)号：US4973957A
公开(公告)日：1990-11-27
申请号：US348170
申请日：1989-05-02
摘要： A host apparatus collects the physical or chemical quantities of articles, which have been measured by a plurality of measuring devices, for example, vernier calipers. Each calipers has a caliper unit as a measuring means, a dip-switch, a CPU, a RAM, and a transmitter. The caliper unit has an analog-to-digital (A/D) converter. The dip-switch is operated, thus setting an ID number of the device, before the device is used. The ID number is stored into the RAM. When the transmission button of the device is pushed, the CPU edits the digital value supplied from A/D converter and the ID number stored in the RAM, thereby forming a serial-data message. This message is transmitted by a transmitter, in the form of a radio message. The host apparatus has a receiver and a host computer. The receiver received the serial-data messages transmitted from the measuring devices. The host computer collects the values measured by the devices and contained in the serial-data messages, in accordance with the ID numbers also contained in the serial-data messages.
摘要翻译： 主机装置收集由多个测量装置例如游标卡尺测量的物品的物理或化学量。 每个卡钳具有作为测量装置的卡尺单元，dip开关，CPU，RAM和发送器。 卡尺单元具有模数（A / D）转换器。 操作DIP开关，从而在使用设备之前设置设备的ID号。 ID号存储在RAM中。 当按下设备的传输按钮时，CPU编辑从A / D转换器提供的数字值和存储在RAM中的ID号，从而形成串行数据消息。 该消息由发射机以无线电消息的形式发送。 主机装置具有接收机和主机。 接收器接收从测量装置发送的串行数据消息。 主计算机根据串行数据消息中包含的ID号码收集由设备测量并包含在串行数据消息中的值。
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公开(公告)号：US4930096A
公开(公告)日：1990-05-29
申请号：US348175
申请日：1989-05-02
摘要： A caliper unit has a connector having connecting terminals. The caliper unit measures a value of a product, and generates digital data representing this value. A data-transmitting apparatus has a housing. The housing can be attached to caliper unit. The housing has a fastening ring and a connecting plug. The plug can be connected to the connector of the caliper unit by the fastening ring. A microcomputer including a CPU is provided within the housing. A RAM is also provided within the housing, for storing the digital data input from the caliper unit and also an identification (ID) number assigned to the data-transmitting apparatus. The microcomputer forms a serial-data message from the digital data and the ID number, both stored in the RAM. A transmitter is provided within the housing, for transmitting the serial-data message in the form of a radio message.
摘要翻译： 卡尺单元具有具有连接端子的连接器。 卡尺单元测量产品的值，并生成表示该值的数字数据。 数据发送装置具有壳体。 外壳可以连接到卡尺单元。 壳体具有紧固环和连接插头。 插头可以通过紧固环连接到卡钳单元的连接器。 包括CPU的微计算机设置在壳体内。 还在外壳内提供RAM，用于存储从卡尺单元输入的数字数据以及分配给数据发送设备的标识（ID）号码。 微型计算机从数字数据和ID号形成串行数据消息，两者都存储在RAM中。 在外壳内提供发射机，用于以无线电消息的形式发送串行数据消息。
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