Abstract: Methods and systems for transmitting compressed audio/video data streams across conventional networks or channels in real time. Each system employs the Adaptive Rate Control (ARC) technique that is based on the detection of defective packets and other influencing factors such as overall system performance, usage model and channel characteristics. To control data stream congestions in the channel and maintain the visual display quality above a certain level, the present invention exploits the human visual perception and adaptability to changing visual conditions. The ARC technique relies on the client's capacity for calculating the quality of video packets received from a server and sending information of a desired transmission rate to the server. This approach simplifies the hardware and software implementation complexity otherwise imposed on the server and reduces the overall design cost by shifting the burden of monitoring bandwidth and transmission control from the server to the client.

Abstract: A method and an apparatus for real-time monitoring and controlling of networked appliances over both a wide-area network (WAN) and a local-area network (LAN) using a Device State and Location Server (DSLS) as an intermediate server are disclosed. The DSLS is configured to either receive beacons from networked appliances periodically or poll networked appliances to update current activity status of each networked appliance. A unified user interface on a commanding device is configured to monitor the current activity status of each networked appliance by simply receiving updated data from the DSLS, thereby offloading a cumbersome task of tracking all networked appliances over the WAN and the LAN on its own. A color coding scheme and different icon shapes are used for ease of monitoring of the networked appliances. An orbital user interface software further helps to visualize location and current activity status of each networked appliance.

Abstract: An apparatus and a method for controlling a network-connected device in one peer network from an infrared (IR) device connected to another peer network is disclosed. Regardless of underlying communication protocols used in peer networks, the IR device in a peer network can request a transfer of data or control to a networked device in another peer network. Communication compatibility among the two peer networks are maintained by utilizing a set-top box in each peer network configured to communicate with another set-top box using a transport control protocol (TCP), which may be different from underlying protocols (e.g. X.25, IrDA) between the set-top box and locally connected devices to the set-top box. The set-top box may utilize an intelligent routing scheme based on a packet header and/or payload content examination to route the transfer of data to a “most-appropriate” electronic device connected to the set-top box.