摘要:
An electronic filing device, comprising an electronic computer such as a personal computer and an image processing device, in which the electronic computer is provided with a data port and a video port and controls the image processing device by using commands and data given to the image processing device by the electronic computer through the data port and image information outputted by the electronic computer through the video port is enlarged within the image processing device, synthesized with image data searched by the image processing device, and displayed on a display device in the image processing device.
摘要:
An image data rotating apparatus has an n.times.n dot matrix memory which temporarily stores n.times.n dots of image data supplied from a first image data memory. A row/column selector selects one row or column of the n.times.n dot matrix memory in response to a rotation indicating signal, which selects an integer times 90.degree. as a rotating degree, for example, 0.degree., 90.degree., 180.degree., 270.degree. or the like. The n dots of image data stored in the selected row or colum are re-written by outputting the stored data into a second image data memory, and by inputting another n dots of image data from the first image data memory in the same cycle, and with the repeating of this cycle, all the n.times.n dots of image data stored in the n.times.n dot matrix memory are re-written so that the rotated image data can be retrieved from the second image data memory.
摘要:
A video signal and a horizontal synchronizing signal provided from a work station are delayed by a plurality of delay circuits having different delay amounts, and phase differences between a sampling clock signal and the delayed signals are detected. A clock generator generates two kinds of clock pulses having opposite phases and the same frequency. A clock selector selects one of the clock pulses as a sampling pulse signal in response to the phase differences. Further, a phase difference between the horizontal synchronizing signal and the video signal is detected so that the phase difference between the horizontal synchronizing signal and the video signal is maintained constant.
摘要:
A bus system for an information processing system in which data transfer among plurality of modules is controlled on a common bus. In response to a bus use request from a module, a command is issued for aborting data transfer being performed by another module having a lower priority. The module which is transferring the data responds to the abort command by issuing a signal indicating that a word being transferred is the final word. The data is transferred between a master and a slave through an address bus having a same width as the data in synchronism with a clock supplied from a bus controller.
摘要:
A processor bus linked with at least a processor, a memory bus linked with a main memory, and a system bus linked with at least an input/output device are connected to a three-way connection control system. The control system includes a bus-memory connection controller connected to address buses and control buses respectively of the processor, memory, and system buses to transfer address and control signals therebetween. The control system further includes a data path switch connected to data buses respectively of the processor, memory, and system buses to transfer data via the data buses therebetween depending on the data path control signal.
摘要:
In each of the information processing apparatuses connected to each other via a network, there is arranged a quality of service (QOS) table to which functions and performance thereof are registered. When an information processing apparatus is additionally linked with the network, a QOS table thereof is automatically registered to a local directory of the network such that an agent converts the contents of the QOS table into service information to be supplied via a user interface to the user. Thanks to the operation, information of functions and performance of each information processing apparatus connected to the network is converted into service information for the user. Consequently, the user can much more directly receive necessary services.
摘要:
A processor bus linked with at least a processor, a memory bus linked with a main memory, and a system bus linked with at least an input/output device are connected to a three-way connection control system. The control system includes a bus-memory connection controller connected to address buses and control buses respectively of the processor, memory, and system buses to transfer address and control signals therebetween. The control system further includes a data path switch connected to data buses respectively of the processor, memory, and system buses to transfer data via the data buses therebetween depending on the data path control signal.
摘要:
A processor bus linked with at least a processor, a memory bus linked with a main memory, and a system bus linked with at least an input/output device are connected to a three-way connection control system. The control system includes a bus-memory connection controller connected to address buses and control buses respectively of the processor, memory, and system buses to transfer address and control signals therebetween. The control system further includes a data path switch connected to data buses respectively of the processor, memory, and system buses to transfer data via the data buses therebetween depending on the data path control signal.
摘要:
In a data processing system, a plurality of modules connected to a system bus thereof are assigned with identifiers. When a source module initiates a split read access to another module, the source module sends an address of the access destination module and an identifier of the source module. When sending a response to the source module, the destination module returns response data and the identifier of the source module thereto. Checking the identifier from the destination module, the source module determines the response data returned as a response to the initiated access.
摘要:
The present invention provides a means for preventing execution of a transaction such as main storage access from obstruction by bus competition with low-speed IO access and improving the bus occupation efficiency. The present invention includes a first bus, a second bus, a plurality of modules connected to both buses, a bus conversion means for performing protocol conversion of information between both buses, a bus arbiter for arbitrating a bus occupation right request of a bus master, and a storage means for storing access data up to a predetermined amount when the access destination is a predetermined module. Each bus master outputs access destination information and when the bus arbiter judges that one of the bus masters issues a bus occupation right request when it performs an access operation, the bus arbiter refers to the access destination information and the data storage status of the storage means and decides whether or not to give a bus occupation right to the bus master.