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COMMUNITY ANTENNAE TELEVISION CATV SYSTEMS
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| Brand | Owner (click to sort) |
|---|---|
| AVAILINK | Availink, Inc. |
| CONEXANT | CONEXANT SYSTEMS, INC. |
Technical Examples
- A method is provided for establishing a community of practice including a plurality of users, one or more experts, and one or more community of practice managers. A need for a community of practice is identified. The roles and responsibilities of participants in the community of practice are identified. One or more goals are identified for the community of practice based on the identified need. A plurality of the participants in the community of practice collaborate to achieve the identified goals.
- The invention uses a layer 2 switch (L2 switch), or bridge, to separate user's message traffic by use of Virtual Local Area Networks (VLANs) defined within the switch. Three new types of ports are defined, "promiscuous" ports "isolated" ports, and "community" ports. Three types of VLANs internal to the switch are defined, "primary" VLANs, "isolated" VLANs and "community" VLANs. The promiscuous ports are connected to layer 3 or layer 4 devices. Isolated ports and community ports are connected to individual user's servers, etc., and maintain traffic for each user separate from other users. The primary VLAN connects to all promiscuous ports, to all isolated ports, and to all community ports. The primary VLAN is a one way connection from promiscuous ports to isolated or community ports. An isolated VLAN connects to all promiscuous ports and to all isolated ports. The isolated VLAN is a one way connection from an isolated port to the promiscuous ports. A community VLAN is defined as connecting to a group of community ports, and also connecting to all of the promiscuous ports. The group of community ports is referred to as a "community" of community ports. A community VLAN is a one way connection from a community of ports to the promiscuous ports, but allows a packet received by one community port to be transmitted out of the switch, through the other community ports connected to that community VLAN.
- A Cable Television (CATV) digital return link system that provides dedicated, high-speed, full-duplex and point-to-point connections between users and the head end system is disclosed. The CATV digital return link system includes return path transmitters, intermediate hubs and a head end hub coupled to each other via a network of fiber optics cables. The return path transmitters are each coupled to a relatively large number of users via a local CATV-subtree. Signals from cable modems are transmitted via the local CATV-subtree to the return path transmitters for transmission to the head end. A number of users are individually and directly connected to the return path transmitters. Data from these directly connected users is transmitted to the head end via the network of fiber optics cables in conjunction with the RF data from the subtree. Likewise, data from the head end to these directly connected users is transmitted in the forward path direction using the digital return link system.
- An interactive television system displays a television program having an associated channel. The system also displays an interactive television mode indicator if the displayed television program supports an interactive television mode. The interactive television mode is activated in response to a request from a viewer of the television program to activate the interactive television mode. The system updates a channel status list to indicate that the television program is being viewed in the interactive television mode. The system is also able to handle requests for activating an online television mode. When changing channels, the channel status list is used to restore a previously activated interactive television mode or online television mode for a particular television channel. Two different indicators may be displayed to indicate whether the television program supports an interactive television mode and/or an online television mode.
- A method and system for optimizing the use of antennae in a CDMA distributed antenna system. A pathway manager may identify and select an optimal antenna to transmit a wireless signal from a BTS to a receiver. The non-selected antennae may be disabled from transmitting signals to the receiver by suppressing the Walsh code and PN offsets of the BTS and receiver. The pathway manager may use criteria such as availability, proximity, reliability, and strength of signals and antennae to select an optimal antenna. Communications between the receiver and the antennae may be used to determine such criteria. By selecting an optimal antenna, the pathway manager may conserve energy from a BTS and reduce power requirements for an antenna system.
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