Abstract: A menuing system for a video distribution system provides an interactive display to allow a user to select and control the delivery of program material. A central host computer processes initial request for service from users and maintains a database of currently available program materials and other system resources. In response to a user's request for service, the central host computer assigns one of a plurality of assignable computing devices (ACDs) to communicate with the user. The ACD reads the database and presents an interactive menu to the user on the user's audiovisual display monitor. Using a graphical user interface (GUI) the user may then respond to the menu by selecting an item for viewing. The menuing system may have a number of levels that the user may parse through to allow the user to select desired program material. Upon selection by the user, the ACD passes the request on for further programming.

Abstract: A menuing system for a video distribution system provides an interactive display to allow a user to select and control the delivery of program material. A central host computer processes initial request for service from users and maintains a database of currently available program materials and other system resources. In response to a user's request for service, the central host computer assigns one of a plurality of assignable computing devices (ACDs) to communicate with the user. The ACD reads the database and presents an interactive menu to the user on the user's audiovisual display monitor. Using a graphical user interface (GUI) the user may then respond to the menu by selecting an item for viewing. The menuing system may have a number of levels that the user may parse through to allow the user to select desired program material. Upon selection by the user, the ACD passes the request on for further programming.

Abstract: A method and system for video distribution among a plurality of users uses a host computing device that allocates tasks among a number of audiovisual serving devices. A user can select between traditional video program material, such as scheduled special events and on-demand feature length films, as well as Internet access, video games and computer applications. Assignable Computing Devices (ACDs), one type of audiovisual serving device within the system, are used for a number of functions including providing Internet access to users, controlling the menu-driven process of selecting program material and providing computer applications to users. Other types of audiovisial serving devices provide program material such as on-demand feature length films and video games. The user communicates with the ACDs through an intuitive graphical user interface (GUI) while selecting program material to view through a series of menus, which may be customized according to the preferences of an individual user.

Abstract: A menuing system for a video distribution system provides an interactive display to allow a user to select and control the delivery of program material. A central host computer processes initial request for service from users and maintains a database of currently available program materials and other system resources. In response to a user's request for service, the central host computer assigns one of a plurality of assignable computing devices (ACDs) to communicate with the user. The ACD reads the database and presents an interactive menu to the user on the user's audiovisual display monitor. Using a graphical user interface (GUI) the user may then respond to the menu by selecting an item for viewing. The menuing system may have a number of levels that the user may parse through to allow the user to select desired program material. Upon selection by the user, the ACD passes the request on for further programming.

Abstract: A multi-band multi-element directional antenna array having a driven element and at least one parasitic element with a network at the center of each element interconnecting element opposite side radiators. While some of these would be a driven element and either a reflector or director parasitic element array most applications call for at least three elements, a driven element, a reflector element and a director element, and for some applications, additional parasitic director elements are added. While antenna arrays embodying features hereof may be adapted as two band f.sub.1 f.sub.2, f.sub.2 f.sub.3, or f.sub.1 f.sub.3 antenna arrays, primary useage would be in a three radio band f.sub.1, f.sub.2, f.sub.3 version with band nominal center frequencies related, approximately by the progression 1, 1.5, 2 (example 14, 21, and 28 MHz).

Abstract: A three band monopole antenna with such length as to be of greater electrical length than a quarter wavelength of the two highest frequency bands and shorter than a quarter wavelength of the lowest frequency band. The antenna system includes a matching network at its base matching the antenna on three frequency bands related by, substantially, the progression 1, 2, 4, and with the matching network including a shunt inductor and an inductor and capacitor in series with the signal feedpoint.

Abstract: An antenna combiner 2.sup.n antenna element system with switchable variable delay line length broadband beam and null steering through 360.degree. in azimuth.