Showing papers on "Upload published in 1993"

System for managing a plurality of computer jukeboxes

Abstract: A method and apparatus is shown for managing a plurality of computer jukeboxes (13) at different locations from a central station. Each jukebox (13) includes processor means (121) for controlling the computer jukebox (13), storage and retrieval means (93) for data, display means (125) for selection menus, audio production means (127) for playing musical records, and a user interface (123) enabling patrons to communicate with the processor means. The central station (11) can be used to download musical recording data to each computer jukebox (13), and each computer jukebox (13) can upload usage data to the central station (11).

Network server for local and remote resources

Abstract: A network server permits clients on the network to access one or more local resources managed by the network server and one or more remote resources managed by one or more respective remote computers coupled to the network server. When a client desires to access any of the resources, the client first requests a session or log-on to the network server by supplying a valid account name and password. Either with the session establishment request or subsequently during the same session, the client requests a connection or access to a resource. The client need not know the location of the resource or the computer (remote or network server) which manages the resource. The network server determines which computer manages the requested resource. If the network server manages the resource, then the network server determines if the connection is available or provides the access as requested and responds to the client. Then, if the client subsequently requests a connection with or access to a resource managed by a remote computer, or if the original request was for a resource managed by the remote computer, the network server sends a session establishment request and connect or access request to the remote computer. The client need not send a separate session establishment request for the remote computer. If the remote computer grants the session, then the client can access the resource managed by the remote computer.

Enabling features over common communication channel

Abstract: A technique for downloading or activating or deactivating selected machine features from a remote central station that is connected to the remote machine by a communication channel. Also, the invention includes identifying features to be downloaded and then activated at a given site and communicating the data relative to the identified features to the remote machine.

Remote procedure callback system and method

Abstract: A method is provided for executing an application on a compute server of a computer network or other computer system that includes the compute server and at least one client system. The client system makes a remote procedure call to the compute server, and the remote procedure call is transported by the computer network or computer system from the client system to the compute server. Execution of the client program that made the remote procedure call is suspended until the compute reserver returns the results of executing the remote procedure call. After the compute server begins processing the remote procedure call it may determine that additional information is needed from the client system to process the remote procedure call. In that case, the compute server initiates a remote procedure callback to the client system to request the required additional information, and that remote procedure callback is transported back to the client system by the computer network. The client system receives and processes the remote procedure callback and returns the requested additional information to the compute server. The compute server can make more than one remote procedure callback to the client system. When the compute server finishes processing the client system's remote procedure call, the results generated by the compute server are sent back to the client system.

Remote access to interactive media

Abstract: Digital interactive media augments interactive computing with video, audio, computer graphics and text, allowing multimedia presentations to be individually and dynamically tailored to the user. Multimedia, and particularly continuous media pose interesting problems for system designers, including those of latency and synchronization. These problems are especially evident when multimedia data is remote and must be accessed via networks. Latency and synchronization issues are discussed, and an integrated system, Tactus, is described. Tactus facilitates the implementation of interactive multimedia computer programs by managing latency and synchronization in the framework of an object-oriented graphical user interface toolkit.© (1993) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

System for selectively setting a server node, evaluating to determine server node for executing server code, and downloading server code prior to executing if necessary

Abstract: A method and system for executing code remotely is provided. In a preferred embodiment, a client program executes on a client node and communicates with a network. The executing client program then requests the execution of server code corresponding to an object instance or object class instance with which the client program desires to communicate. In response to the client program request, the computer system determines a location where the server code will be executed. This determination is made using a set of rules that arbitrate between location contexts specified by the corresponding server program and a location context requested by the client program. Once the appropriate location is determined, the client program forwards its request to the appropriate network node, which requests execution of the requested server code.

Why Going Online for Content Analysis Can Reduce Research Reliability

Abstract: This study cautions researchers to be careful when comparing content-analysis research results of online searches to hand searches. How newspapers upload information into the data bases can influence the results. All data bases do not provide the same access to information.

A process control data processing apparatus

Abstract: A process control data processing apparatus has a database controller (20) with various components (34 - 39) constructed for real-time reception of process control data, processes being initiated upon reception of upload data via an upload input interface (30). Various data structures are used including an input file structure (26) having data records and separate sections, process files (27) and a history file (24). Input file data are verified by a verifier (32). A process control interface (37) writes in parallel to both process files (27) and an input file (26), updating of the history file (24) being via the input file (26) for vast data retrieval and data integrity. The history file (24) provides fast data access via a read-only bus (22) and a data filter (21).

Software acquiring procedure and information system for carrying out this procedure

Abstract: The invention relates to a method and a computer system for acquiring software by a microcomputer. The system therefore includes a database server in which the application software is stored, and a removable electronic storage medium containing access rights, to be inserted into a reader of the microcomputer to allow downloading to the microcomputer. computer software for which the medium contains the corresponding access rights, this same medium may contain the rights to execute the downloaded software. The invention applies to portable microcomputers.

Communicating method of server/client system

Abstract: PURPOSE: To facilitate the revision of client software and the operation of maintenance by storing the client software in the storage device of a server and downloading this software to a client side at a request from the client side. CONSTITUTION: A client-side client process part 111 requests the download of the client software. A server-side server process part 112 recognizes this request. The server process part 112 reads the client software out of a storage device 104 and downloads it to the client side through a controller 103 and a network connecting device 102. The client process part 111 acquires the software through a network connecting device 106 and a controller 107 and stores it in a storage device 109. The client process part 111 executes the client software 111 in the storage device 109. Consequently, user's operation can be facilitated. COPYRIGHT: (C)1995,JPO

Digital automobile telephone system with downloading function for extended software

Abstract: PURPOSE:To enable even the mobile station of a subscriber of a different company to receive service characteristic to this company by roaming the service area of an exchange and downloading the extended software other than standard software that the exchange has to the mobile station which has made a position registration request. CONSTITUTION:The exchange 101 once receiving a position registration request signal from the mobile station 104 through a base station 102 and a radio station 103 retrieves subscriber data by referring to subscriber data 106 by a position registration/roaming control part 108 and sends a position registration acceptance signal to the mobile station 104 through the base station 102 and radio station 103. Then an extended software downloading control part 105 is actuated to send a download setup signal to the mobile station 104 similarly. The exchange 101 waits for the download acceptance signal of the mobile station 104 and sends a download signal to the mobile station 104. Consequently, even the mobile station 104 of the subscriber of the different company can receive the service characteristic to this company.

Data transmitting/receiving apparatus

Abstract: PURPOSE: To use a known computer system to upload/download transmission data to/from a data storage medium. CONSTITUTION: A data transmission/reception equipment is provided with a data medium interface 11 mutually connected to a data storage medium 1 which can read transmission data for transmission and can store transmitted data after reception of this data, a processor means 12 connected to this interface, and a communication network interface 15 connected to this processor means. The communication network interface 15 mutually connects a communication network 4 carrying transmission data and the data transmission/reception equipment, and the processor means 12 controls transfer of transmission data between the data storage medium 1 and the communication network 4.

Modular agents for robot navigation

Abstract: Building an expandable control strategy for a mobile robot system that is capable of performing a given task or tasks is an important issue. For instance, new hardware and peripherals keep emerging as better and faster technologies become available. In this paper, we describe a system that is designed for controlling a mobile robot system with multiple sensors or peripherals. We propose a control scheme that employs at least as many server modules as there are hardware or peripheral components. Thus, a server is dedicated to controlling one hardware component and responds to all requests designated to it. Since hardware components are independent of each other, the server modules can run concurrently and new peripherals can be easily added without modifying the existing system. A typical configuration of a system consists of several task specific modules, each carrying a subgoal as part of a common goal that the robot has to achieve. Information sharing among these modules is accomplished via communication with a central data server. All modules can send query or update requests of the information used by the entire system. The control system is designed to enable all the modules to run concurrently on different machines. Preliminary results on an indoor navigation task are encouraging.© (1993) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

PC-based architecture to access remote image databases

Abstract: This contribution describes a Videotex terminal with photographic capabilities based on a personal computer (PC). This system takes advantage of a recently available support--the Integrated Services Digital Network (ISDN)--which represents a significant improvement in the performance of communication systems, and is intended to offer a new and practical service while maintaining compatibility with the Alphamosaic Videotex.© (1993) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

Parallel finite-difference migration

Abstract: Finite-difference migration in the natural x-t coordinates, e.g. the 15-degree implicit wave- equation method, has been in common use for over a decade of geophysical data processing. As such, it predated the invention of large vector computers, such as the Cray-1S introduced in 1977, and so was organized and optimized to achieve the sensible objectives of reducing the number of computations and I/O operations as much as possible. Outboard array processors, employed to accelerate computations, changed the relative weights of computation and I/O but still fit comfortably into existing program designs. Since the mid 80's the author has revisited the implementation of 15-degree implicit finite-difference migration on vector and parallel computers now in common use and found that impressive performance gains can be achieved by completely reorganizing the computations. This report summarizes the highlights of these efforts and gives benchmark results for a variety of vector and parallel platforms.© (1993) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

Using broadband digital image communication for international remote expert consultation in the EC project TELEMED

Abstract: In the EC project TELEMED (R1086) the feasibility of digital image communication for remote expert consultation in radiology is investigated. Three modes are considered: batch mode (normal case), interactive mode (emergency case), and mixed mode (teaching situation). To allow short transmission and response times for the voluminous data files, 2 Mbit/s networks and 384 kbit/s ISDN are employed to interconnect eight European university hospitals. A set of requirements was derived, and software has been developed for image and text communication, for image display and manipulation, and for synchronization of remote workstations. From the experiences gained during experimentation regarding the appropriate design of networks, transmission rates and data throughput, user acceptance, integration and standardization, recommendations for future routine application could be concluded.© (1993) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.