Data communication system
    1.
    发明授权
    Data communication system 失效
    数据通信系统

    公开(公告)号:US4516221A

    公开(公告)日:1985-05-07

    申请号:US390642

    申请日:1982-06-21

    摘要: A data communication system including reflectors having first light emitting elements for radiating light and first light receiving elements for receiving light, a plurality of transceivers disposed confronting said reflectors and having second light emitting elements for radiating light and second light receiving elements for receiving light, and a data processing unit to be connected to the transceivers, wherein light corresponding to the data to be transmitted from the data processing unit is converged and radiated from the second light emitting element of the transceiver to the reflector, the light from the transceiver is received by the first light receiving element of the reflector, light corresponding to the data thus received is radiated from the light emitting element of the reflector to all of the transceivers confronting said reflector and is received by the second light receiving elements of the transceivers, and the data thus received is sent to the data processing unit.

    摘要翻译: 一种数据通信系统,包括具有用于照射光的第一发光元件和用于接收光的第一光接收元件的反射器,与所述反射器相对设置的多个收发器,并具有用于发光的第二发光元件和用于接收光的第二光接收元件, 数据处理单元,其连接到收发器,其中与从数据处理单元发送的数据相对应的光从收发器的第二发光元件收敛并辐射到反射器,来自收发器的光由 反射器的第一光接收元件对应于如此接收的数据的光从反射器的发光元件辐射到与所述反射器相对的所有收发器并被收发器的第二光接收元件接收,并且数据 这样接收到的数据被发送到数据处理单元。

    Demodulating circuit for data signal
    2.
    发明授权
    Demodulating circuit for data signal 失效
    解调电路用于数据信号

    公开(公告)号:US4626789A

    公开(公告)日:1986-12-02

    申请号:US639412

    申请日:1984-08-10

    CPC分类号: H03G3/341 H04L1/20 H04L27/22

    摘要: In a data signal demodulating circuit for demodulating data from a modulated signal burst in which a carrier signal is modulated by a data signal, noise elimination means is provided at at least one of the input and output of an AND circuit, to eliminate noise in periods during which there is no carrier present, by adding an output from a demodulator to an output from a carrier sense circuit, in order to completely eliminate noise occurring at the start and end of a demodulated data signal, and eliminate noise occurring during the rise time and fall time of the carrier sense circuit.

    摘要翻译: 在用于通过数据信号调制载波信号的调制信号脉冲串解调数据的数据信号解调电路中,在AND电路的输入和输出中的至少一个处提供噪声消除装置,以消除周期中的噪声 在此期间没有载波存在,通过将来自解调器的输出添加到载波检测电路的输出,以便完全消除在解调数据信号的开始和结束时出现的噪声,并消除在上升时间期间发生的噪声 和载波检测电路的下降时间。

    System for frequency modulation
    4.
    发明授权
    System for frequency modulation 失效
    调频系统

    公开(公告)号:US4547751A

    公开(公告)日:1985-10-15

    申请号:US492218

    申请日:1983-05-06

    IPC分类号: H03C3/00

    CPC分类号: H03C3/00

    摘要: A system for frequency modulation which generates first and second signals having different frequencies in a switching manner in accordance with the logical value of an input signal. The system includes an oscillator for generating a signal having a predetermined frequency; first and second frequency-dividers for subjecting the signal generated by the oscillator to frequency division by different integers l and m to generate first and second signals which are synchronized with each other; a third frequency-divider for subjecting an output signal from said second frequency-divider to frequency division by an integer n selected so that the product m.times.n is the least common multiple of l and m; a control device for controlling input data with an output signal from said third frequency-divider; and a switching device for selecting one of the output signals from the first and second frequency-dividers in accordance with the logical value of an output signal from the control device to generate an output which is passed through a filter for providing a modulated output.

    摘要翻译: 一种用于频率调制的系统,其根据输入信号的逻辑值以切换方式生成具有不同频率的第一和第二信号。 该系统包括用于产生具有预定频率的信号的振荡器; 第一和第二分频器,用于对由振荡器产生的信号进行不同的整数l和m的分频,以产生彼此同步的第一和第二信号; 第三分频器,用于对来自所述第二分频器的输出信号进行分频,所选择的整数n使得乘积mxn是l和m的最小公倍数; 用于利用来自所述第三分频器的输出信号来控制输入数据的控制装置; 以及用于根据来自控制装置的输出信号的逻辑值选择来自第一和第二分频器的输出信号之一的开关装置,以产生通过用于提供调制输出的滤波器的输出。

    Data communication system with error detection/correction
    5.
    发明授权
    Data communication system with error detection/correction 失效
    具有错误检测/校正的数据通信系统

    公开(公告)号:US4573154A

    公开(公告)日:1986-02-25

    申请号:US538510

    申请日:1983-10-03

    IPC分类号: H04L1/14 H04L12/14 H04L12/413

    CPC分类号: H04L1/14 H04L12/14 H04L12/413

    摘要: In a data communication system which has a common transmission line, a plurality of transceivers connected to the transmission line and data processors connected to the respective transceivers, and in which data from the data processor is delivered to the common transmission line through the corresponding transceiver, and data from the common transmission line is delivered to the data processor through the transceiver, so as to perform data communications among the data processors; a data communication system wherein said each transceiver comprises a first circuit which checks if an address of the data received from the transmission line has been received without any transmission error, a second circuit which checks if the address is one directed to the particular transceiver when the absence of the transmission error has been decided by the first circuit, a third circuit which turns back and delivers the received data when the address directed to the particular transceiver has been decided by the second circuit, and a fourth circuit which compares the sent data with the data turned back from another transceiver, the sending of the data being stopped when disagreement has been detected by the fourth circuit.

    摘要翻译: 在具有公共传输线的数据通信系统中,连接到传输线的多个收发器和连接到各个收发器的数据处理器,并且其中来自数据处理器的数据通过对应的收发器传送到公共传输线, 并且通过收发器将来自公共传输线的数据传送到数据处理器,以便在数据处理器之间执行数据通信; 数据通信系统,其中所述每个收发器包括第一电路,其检查从传输线接收的数据的地址是否已经被接收而没有任何传输错误,第二电路检查地址是否是针对特定收发器的地址 已经由第一电路确定不存在传输错误,当第二电路确定指向特定收发器的地址时,返回并传送接收到的数据的第三电路,以及将发送的数据与 数据从另一个收发器转回,当第四个电路检测到不一致时,数据的发送被停止。

    Method and device for data communication
    6.
    发明授权
    Method and device for data communication 失效
    用于数据通信的方法和设备

    公开(公告)号:US4602252A

    公开(公告)日:1986-07-22

    申请号:US454030

    申请日:1982-12-28

    IPC分类号: H04L12/413 H04Q9/00 H04N15/00

    CPC分类号: H04L12/413

    摘要: A method for data communication usable for a system having a common transmission line, a plurality of transceivers connected to the common transmission line, and a data processing equipment connected to each of the transceivers, the system being arranged such that data from the data processing equipment is sent to the common transmission line through the corresponding transceiver, while data from the common transmission line is sent to the data processing equipment through the corresponding transceiver, thereby effecting a data communication between data processing equipment, wherein when a request to send data is sent from the data processing equipment to the corresponding transceiver, a carrier signal is sent to the common transmission line, and when the fact that no data is sent from any of the other transceivers to the common transmission line is detected during a given period of time after the sending of the carrier signal, the transceiver gives a permission to send data, to the corresponding data processing equipment, which then sends data on the permission. Also disclosed is a device for carrying out the above-mentioned method for data communication.

    摘要翻译: 一种可用于具有公共传输线的系统的数据通信方法,连接到公共传输线路的多个收发器以及连接到每个收发机的数据处理设备,该系统被布置为使得来自数据处理设备 通过相应的收发器发送到公共传输线,而来自公共传输线的数据通过相应的收发器发送到数据处理设备,从而实现数据处理设备之间的数据通信,其中当发送数据的请求被发送时 从数据处理设备到对应的收发器,载波信号被发送到公共传输线,并且当在给定的时间段内没有数据从任何其他收发器发送到公共传输线的事实被检测到 发送载波信号,收发器发送数据的权限,给c 或相应的数据处理设备,然后发送许可数据。 还公开了一种用于执行上述数据通信方法的装置。

    Distributed information processing system providing a resume function
and resume method for the distributed information processing system
    7.
    发明授权
    Distributed information processing system providing a resume function and resume method for the distributed information processing system 失效
    分布式信息处理系统为分布式信息处理系统提供恢复功能和恢复方法

    公开(公告)号:US5539885A

    公开(公告)日:1996-07-23

    申请号:US114084

    申请日:1993-08-31

    CPC分类号: G06F9/4418

    摘要: A distributed information processing system which includes a server having a resume-request processor and clients having resume-request units or processor. An user at the client site operates a resume switch to save an operation state of the client in the server's magnetic disc, and resume it from the server's magnetic disc. The operation state includes contents of the main memory, contents of the display memory, values of the I/O registers for peripheral devices, and information about the file of the server being used by the application program run by the user. The user is able to use any client of the system in the same situation including a connection state between the file and the application program as before.

    摘要翻译: 一种分布式信息处理系统,其包括具有恢复请求处理器的服务器和具有恢复请求单元或处理器的客户端。 客户端的用户操作一个恢复开关,将客户端的操作状态保存在服务器的磁盘中,并从服务器的磁盘中恢复。 操作状态包括主存储器的内容,显示存储器的内容,外围设备的I / O寄存器的值,以及由用户运行的应用程序正在使用的服务器的文件的信息。 用户能够像以前那样在同一情况下使用系统的任何客户端,包括文件和应用程序之间的连接状态。

    Communication system
    8.
    发明授权
    Communication system 失效
    通讯系统

    公开(公告)号:US5854841A

    公开(公告)日:1998-12-29

    申请号:US755594

    申请日:1996-11-25

    CPC分类号: H04L29/06 H04L69/04

    摘要: Data is compressed/encrypted for communication between application programs without addition of any modification to the application programs. In a communication system where a plurality of personal computers are connected to each other using communication lines, a personal computer is provided with a communication program and an application program, the application program uses a command offered by the communication program for transmission and reception of data with another personal computer, a hooking program for discriminating the command related to the data communication issued by the application program is provided and, after the hooking program has compressed or encrypted the data of application program depending on a type of the command, the command is transferred to the communication program.

    摘要翻译: 数据被压缩/加密用于应用程序之间的通信,而不需要对应用程序进行任何修改。 在使用通信线路将多个个人计算机彼此连接的通信系统中,个人计算机设置有通信程序和应用程序,应用程序使用由通信程序提供的命令来发送和接收数据 在另一个人计算机中,提供用于区分由应用程序发出的与数据通信有关的命令的挂钩程序,并且在挂钩程序根据命令的类型对应用程序的数据进行压缩或加密之后,命令是 转移到通信程序。

    Crushing machine
    9.
    发明授权
    Crushing machine 失效
    破碎机

    公开(公告)号:US5890667A

    公开(公告)日:1999-04-06

    申请号:US770275

    申请日:1996-12-20

    摘要: A crushing machine having enhanced crushing efficiency. The crushing machine includes an outer casing having a fixed jaw and a movable jaw each having a crushing blade for crushing reinforced concrete. The movable jaw includes a crushing blade having a rear-side edge formed in a substantially right-angled shape with a small arcuate edge portion located at an angled edge portion thereof, and a front-side edge generally formed by a large arcuate edge portion. The rear-side edge of the movable jaw crushing blade is oriented to face in a longitudinally inward direction away from a distal end of the movable jaw. The inward orientation of the rear-side edge along with its substantially right-angled shape allow the movable jaw crushing blade to concentrate the load of the crushing machine to the small point of contact between the movable jaw crushing blade and the reinforced concrete, thereby maximizing the crushing efficiency of the crushing machine. The shape and orientation of the movable jaw crushing blade of the present invention also allows the blade to bite into the concrete, thereby preventing slippage between the blade and the concrete.

    摘要翻译: 破碎机具有增强的破碎效率。 破碎机包括具有固定夹爪和可移动夹爪的外壳,每个夹爪具有用于破碎钢筋混凝土的破碎刀片。 活动夹爪包括具有形成为大致直角形状的后侧边缘的破碎刀片,具有位于其倾斜边缘部分处的小弧形边缘部分和通常由大弓形边缘部分形成的前侧边缘。 可动颚式破碎刀片的后侧边缘被定向成远离可动夹爪的远端的纵向内向的方向。 后侧边缘及其基本上直角形状的向内方向允许可动颚式破碎刀片将破碎机的负载集中到可动颚式破碎刀片和钢筋混凝土之间的小接触处,从而最大化 破碎机的破碎效率。 本发明的可动颚式破碎机的形状和取向也允许刀片咬入混凝土,从而防止刀片和混凝土之间的滑动。

    Multi-protocol communication control apparatus
    10.
    发明授权
    Multi-protocol communication control apparatus 失效
    多协议通信控制装置

    公开(公告)号:US5509121A

    公开(公告)日:1996-04-16

    申请号:US428453

    申请日:1995-04-25

    摘要: A multi-protocol communication control apparatus which includes a plurality of kinds of upper layer protocol controllers, a plurality of kinds of lower layer protocol controllers, and a common interface controller for processing correspondence between the upper and lower layer protocols controllers. The multi-protocol communication control apparatus provides for the optional use of any combination of a plurality of kinds of upper layer communication protocols, a plurality of kinds of lower layer communication protocols, and a plurality of transmission lines.

    摘要翻译: 一种多协议通信控制装置,其包括多种上层协议控制器,多种下层协议控制器和用于处理上层和下层协议控制器之间的对应关系的公共接口控制器。 多协议通信控制装置提供多种上层通信协议,多种下层通信协议和多条传输线路的任意组合的可选使用。