US PATENT SUBCLASS 348 / 6
WIRED BROADCAST (E.G., CABLE)

Current as of: June, 1999
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348 /   HD   TELEVISION

6WIRED BROADCAST (E.G., CABLE) {5}
7  DF  .~> Broadcast on demand
8  DF  .~> Local distribution (e.g., hotel, hospital, vehicle, etc.)
9  DF  .~> Controlled signal substitution (e.g., emergency warning, local preemption, etc.)
10  DF  .~> With subscriber terminal details {1}
12  DF  .~> Two-way

DEFINITION

Classification: 348/6

WIRED BROADCAST (E.G., CABLE):

(under the class definition) Subject matter including a closed circuit network to distribute signals to a plurality of receivers or display devices.

(1) Note. For example, this subclass and indented subclasses include CATV (Community Antenna Television) and hotel wired distribution networks.

(2) Note. In a closed circuit network, a program source, audio or video that is not broadcast for general consumption, is fed to remote monitored units by wire. This network communication system is entirely self-contained and does not exchange intelligence with other facilities and systems.

SEE OR SEARCH CLASS

370, Multiplex Communications,

339, for multiplexing systems which utilize plural transmitters/receivers operating off a common antenna.

375, Pulse or Digital Communications, 257+, for digital cable distribution system.

455, Telecommunications,

3.1+, for modulated carrier wave receiver distribution systems.