Abstract: A Web browsing system using a browser operating system (BOS), which provides a trusted software layer on which Web browsers execute. The BOS runs the client-side component of each Web application (e.g., on-line banking, and Web mail) in its own virtual machine, which provides strong isolation between Web services and the user's local resources. Web publishers can thus limit the scope of their Web applications by specifying the URLs and other resources that their browsers are allowed to access, which limits the harm that can be caused by a compromised browser. Web applications are treated as first-class objects that users explicitly install and manage, giving them explicit knowledge about and control over downloaded content and code. An initial embodiment implemented using Linux and the Xen virtual machine monitor has been shown to prevent or contain about 87% of the vulnerabilities that have been identified in a conventional web browser environment.

Abstract: This invention describes a system and method for aligning radiation therapy beams with a treatment target of a patient. Diagnostic computer tomography scanning is used to map the treatment target in the patient's anatomy and to aid physicians in deciding where to aim the radiation therapy beams. Digitally reconstructed radiographs are generated from an intermediate 3-D image produced from the CT scans. These DRRs are compared with x-ray images taken of the treatment target's position taken at the time of treatment. A transformation equation is used to compare the DRRs and the x-ray images. A minimization equation is used to determine the similarity between the two sets of images. If the difference between the two sets fall below a determined minimum value, then the position of the treatment target is deemed correct and the radiation therapy begins.

Abstract: This invention describes a method for aligning radiation therapy beams with a treatment target of a patient. Diagnostic computer tomography scanning is used to map the treatment target in the patient's anatomy and to aid physicians in deciding where to aim the radiation therapy beams. Digitally reconstructed radiographs are generated from an intermediate 3-D image produced from the CT scans. These DRRs are compared with x-ray images taken of the treatment target's position taken at the time of treatment. A transformation equation is used to compare the DRRs and the x-ray images. A minimization equation is used to determine the similarity between the two sets of images. If the difference between the two sets fall below a determined minimum value, then the position of the treatment target is deemed correct and the radiation therapy begins. If the difference does not fall below the determined minimum value, then either the radiation beams or the treatment target is adjusted and the process is repeated.

Abstract: A pushbutton tuner display apparatus for an entertainment device is disclosed in which a plurality of pushbuttons are used to tune a radio apparatus in the entertainment device in one mode of operation, while in another mode of operation the entertainment device operates as a cartridge tape player in which the pushbuttons are utilized as display devices which indicate which tape track is being monitored by the cartridge tape player. Additionally, one pushbutton is utilized as a display to indicate the reception of a stereo radio signal. Each pushbutton comprises a clear plastic light pipe surrounded by an opaque plastic part having openings at the front and rear. An associated light bulb mounted inside the frame of the entertainment device is utilized to provide light to each rear portion of each light pipe, and each light pipe has a prismatic portion which transmits received light to a front portion of the light pipe where an illuminated operative state display indication is produced.

Abstract: A speaker apparatus which has a main speaker and at least one tweeter speaker in which a wire bridge member is used to support the tweeter speaker relative to the main speaker at a predetermined position therefrom. The wire bridge member is retained between the tweeter speaker and the tweeter speaker cover by pins which are heat staked. The wire bridge member has a circular center portion to accommodate the tweeter speaker and arm portions extending transversely and then inwardly at right angles for securing to the main speaker.