Abstract:
A digital transmitter includes a generic adaptable reconfigurable digital transmitter module; and a reversibly removable module operationally coupled to the generic adaptable reconfigurable digital transmitter module. Configuring a generic adaptable reconfigurable digital receiver having a programmable signal conditioner includes specifying a number of output RF channels; specifying an RF bandwidth of an output channel; and selecting a digital to analog sampling rate of a digital to analog convertor of the programmable signal conditioner as a function of the RF bandwidth of the output channel using a processor/demux of the generic adaptable reconfigurable digital receiver.
Abstract:
Adapter (3, 5) for processing electrical signals in an installation comprising a video camera equipment (1) and a remote equipment (7). A first aim of the present invention is to provide an adapter system which allows automatically providing an output video signal that is co- timed to the master timing reference of the remote equipment. A second aim of the invention is to provide an adapter system which improves the security of the installation when power for the camera is transmitted by the remote equipment.
Abstract:
The invention relates to a system, apparatus and method for the distribution of digital data signals which are received at a receiving means, to be sent to a plurality of locations downstream therefrom, in an efficient manner. The received data is received in a first format such as an RF format with a plurality of different components and is then changed in format, in one embodiment to an optical format. The data path is also split to allow a plurality of data paths to be defined which allow the data to be transmitted along the plurality of data paths to each of the downstream locations
Abstract:
A method and a device for conveying data across a shared medium are provided, wherein at least one resource is allocated for an end-to-end connection; and wherein said data is conveyed across the shared medium via the end-to-end connection.
Abstract:
Serial networking dedicated fiber optic inflight entertainment (IFE) systems, methods therefor and components thereof, that exhibit improved configuration and failover attributes through implementation of novel network configuration protocols. In some aspects of the invention, such an IFE system comprises a plurality of head end line replaceable units (HE-LRUs) and a plurality of serial networking line replaceable units (SN-LRUs), wherein each of the SN-LRUs individually detects that a closed system network has been formed between the plurality of HE-LRUs and the plurality of SN- LRUs based on a plurality of packets sourced by at least one of the HE-LRUs and received on a plurality of ports of each of the SN-LRUs, and wherein in response to detecting that the closed system network has been formed one of the SN-LRUs blocks one of its ports based on further detecting that the SN-LRU is a middle SN-LRU.
Abstract:
Methods and apparatus are described for fiber-to-the-home (FTTH) RF over Glass (RFoG) Architecture and customer-premise-equipment (CPE). A method includes up-converting a baseband upstream data signal to a frequency band above a frequency band of a baseband downstream data signal; combining the up-converted upstream data signal with an upstream cable return; transmitting the up-converted upstream data signal and the upstream cable return using a single upstream laser; separating the frequency up-converted data signal from the upstream cable return using an RF diplexer; and down-converting the frequency up-converted upstream data signal back to baseband. An apparatus comprises: a frequency up-converter that up-converts a baseband upstream data signal to a frequency band above a frequency band of a baseband downstream data signal; a frequency combiner coupled to the frequency up-converter that combines the up-converted upstream data signal with an upstream cable return; a single upstream laser coupled to the frequency combiner that transmits the up-converted upstream data signal and the upstream cable return; an RF diplexer coupled to the single upstream laser that separats the frequency up-converted data signal from the upstream cable return; and a frequency down-converter that down-converts the frequency up-converted upstream data signal back to baseband.
Abstract:
A modular, scalable, extensible, In-Flight Entertainment (IFE) data communication system is described. In one embodiment, the system comprises a hub (e.g., 404) providing connection between one or more server/switch line replaceable units (e.g., 200/300/400) including at least one server (e.g., 300/400) and a plurality of passenger video display units (e.g., 130A/308/410). A server, such as, for example, an audio server (e.g., 105), a video server (e.g., 104), an audio/video server, a game server (e.g., 106), an application server (e.g., 103), a file server (e.g., 107), etc., provides information (e.g., entertainment programming, internet file data, etc.) to the video display unit (e.g., 130A/308/410). In one embodiment, the connection between the plurality of server/switch line replacement units (e.g., 200/300/400), the hub (e.g., 404) and the plurality of video display units (e.g., 130A/308/410) is provided by passive fiber optic links.
Abstract:
Video signal processing apparatus and methods are disclosed. An access termination terminates an access communication link that operatively couples a video service customer site to a communication network in which communication signals comprising video signals are distributed to video service customer sites. A video signal processor is co-located with the access termination and is operable to receive communication signals from the access termination, to extract a video signal from the received communication signals, and to output the extracted video signal for transfer to a display system at the video service customer site. Control signals may be received by the video signal processor from the display system over the same connection used to transfer video signals to the display system, or through a different connection such as a wireless connection. Video functions including video recording and other functions normally associated with set top video decoders may also be supported.
Abstract:
A PON system multicast right monitor method and the device thereof in PON system, comprising, the OLT sets user on demand right, and the OLT distributes the public downstream service channel number and the public key for the authorized user, and the OLT updates the public downstream service channel number and the public key on specified time, and sets the preview time for each preview and the preview times within the predetermined time for the user who has the preview right to monitor the multicast service right. The present invention realize monitoring the user on demand process in PON network access system, such that only the user who has the corresponding right can obtain the corresponding service, and such that the commercial video on demand service is performed in PON system.