International Business Machines Corporation

Marc Lawrence Steinbrecher

Robert F Pryor

Grant Douglas Miller

Gerald W Baumann

John M Salvadore

Frederick Fenn Quist, Jr

Jack P Chang

A method for transferring data between a first computer and a second computer is provided. The first computer sends a request to start a session, an encrypted session ID, and an encrypted hash value to the second computer. The second computer receives the request, decrypts the encrypted hash value, independently determines a hash value and compares the independently determined value to the decrypted value. If they match, the second computer starts a session with the first computer. Subsequently, the first computer sends a request to download or upload data, an encrypted ID, an identity of the file, and an encrypted hash value to the second computer in a second connection in the session. The second computer receives the request, decrypts the encrypted hash value, independently determines a hash value and compares the independently determined value to the decrypted value. If they match, the second computer processes the request.

System, method and program for protecting communication

Available bandwidth utilization during transfer of large files over a TCP/IP network is improved by load balancing data streams and dynamically controlling the number of data streams utilized. A determination is made of the optimum number of data streams for a particular data file transfer in the early stage of transmission. An initial number of data streams, which is one unless otherwise specified or determined, is used to transmit one or more file segments, each on a different data stream, immediately followed by a second initial number of data streams, which is at least two greater than the initial number of data streams, is used to transmit another portion of the large data file. During each transmission, individual and aggregate transmission bandwidths are determined. Responsive to a determination that the latest aggregate transmission bandwidth is significantly different from the previous aggregate transmission bandwidth, the number of data streams is modified.

Load balancing and dynamic control of multiple data streams in a network

Automated computerized methods, computer-readable medium containing computer-executable instructions, and apparatus are disclosed for viewing an information set originated from a distribution media and updating using remote server. Initially, an information set is viewed from a standalone distribution media. A user can select all, or one or more components to be updated from a remote server. The local computer system is then updated with a modified index from the local computer referencing the original distribution media and received files kept in local storage. This update process is efficiently performed, and provides for resumption of downloads in the middle of sets of files, or even within a single file. Additionally, when the viewing system includes a standard browser, a proxy agent is used to provide access portions of the file system not normally accessible to the browser. The updated information set is then able to be viewed when the computer system is not connected with the remote server.

Viewing an information set originated from a distribution media and updating using a remote server

A flexible disk drive in which the head moves in an arc, as the head is selectively moved to access the data at the various concentric data tracks of a disk. Concomitant with this approximate arcuate movement, the head is azimuth-rotated, such that its gap has a predefined, optimum azimuth orientation to each of the individual disk tracks, for example, the head's gap is normal to the track's center line at each head position.

Disk drive head accessing mechanism

An early roll closure method and apparatus associated with an electrophotographic or xerographic device for fixing a toner image onto a copy sheet by application of heat and pressure. A lower closing force is exerted on the fuser rollers during early roll closure than when fixing an image to a copy sheet. The use of a backup roll made of bare metal facilitates this technique. This early roll closure method also allows the temperature of the heated fuser roll to be reduced along the entire circumference. The early roll closure is only allowed to occur on the first sheet of a copy or fusing run.

Growing community of inventors

Boulder, CO, United States of America

Marc Lawrence Steinbrecher