The Internet uses both a broadcast and a narrowcast model. Most Web sites are on a broadcast model since anyone with Internet access can view the sites. However, sites that require one to log-in before viewing content are based more on the narrowcast model. Push technologies which send information to subscribers are another form for narrowcasting. Perhaps the best example of narrowcasting are electronic mailing lists where messages are sent only to individuals who subscribe to the list.
The terms multicast and narrowcast are often used interchangeably, although narrowcast usually refers to the business model whereas multicast refers to the actual technology used to transmit the data.
In addition to familiar cable television services, a cable programme service might include a non-interactive online database service. It thus excludes interactive systems like teleshopping or internal business services, individual domestic services, services on single-occupier premises otherwise than by way of business amenity, Intranets, et al.
US Patent Issued to Aurora Networks on Feb. 7 for "N-Way Broadcast / Narrowcast Combiner" (California Inventors)
Feb 13, 2012; ALEXANDRIA, Va., Feb. 13 -- United States Patent no. 8,111,991, issued on Feb. 7, was assigned to Aurora Networks Inc. (Santa...