Abstract: A telecommunications system includes a first node having audio and video streams. The system includes a second node having only an audio stream. The system includes a mechanism for forming a call between the first node and the second node so the first node and the second node communicate their audio streams with each other. The forming mechanism is in communication with the first and second nodes. Preferably, a third node can communicate with the first and second nodes through the forming means. A method for forming a telecommunications call including the steps of calling from a first node having audio and video streams a second node having only an audio stream. There is the step of forming a call between the first node and the second node so the first node and the second node communicate their audio streams with each other.

Abstract: A teleconferencing system-includes a plurality of nodes in communication with each other to form a conference. At least one of the nodes individually controlling, partially, the display layout of each node in the conference. A method for providing a teleconference including forming a conference with a plurality of nodes through a network. At least one of the nodes controls at least partially the display layout of each node in the conference with a specific format unique for each node. A teleconferencing system includes a plurality of nodes in communication with each other through the network to form a conference. Each node communicating only a change to the other nodes when the change occurs. A method for conducting a telecommunications conference between at least three parties includes establishing a conference between the parties and where there is a change to the conference only the change is communicated to the parties.

Abstract: A telecommunications system includes a first node having audio and video streams. The system includes a second node having only an audio stream. The system includes a mechanism for forming a call between the first node and the second node so the first node and the second node communicate their audio streams with each other. The forming mechanism is in communication with the first and second nodes. Preferably, a third node can communicate with the first and second nodes through the forming means. A method for forming a telecommunications call including the steps of calling from a first node having audio and video streams a second node having only an audio stream. There is the step of forming a call between the first node and the second node so the first node and the second node communicate their audio streams with each other.

Abstract: A telecommunications system for conferencing including a network. The system comprises N nodes in communication with each other through the network, where N is greater than or equal to three and is an integer. Each node of the N nodes able to produce a unique corresponding video stream having a bandwidth and a unique corresponding audio stream having a bandwidth for transmission over the network to other nodes of the N nodes, with each stream's bandwidth from each node being dynamically controlled and set at predetermined levels. A method for conferencing in a telecommunications system. A bandwidth manager. A method for controlling bandwidth in a telecommunications network. A telecommunications system for conferencing. Including a network. The system comprises N nodes in communication with each other through the network, where N is greater than or equal to three and is an integer.

Abstract: A system for providing secure communications includes a telecommunications network. The system includes N nodes and a new node in communication with the network to form a session, where N is greater than or equal to three and is an integer. Each node has media streams, and a unique cryptographic media key for each media stream which each node sends to every other node of the session over the telecommunications network. One of the N nodes is a key master which distributes a master key to every other node in the session over the network. Each node encrypts with its own respective media key and the master key each of its media streams. When the new node first joins the session, the new node sends its unique cryptographic media keys for each of its media streams to the N nodes of the session.

Abstract: A telecommunications system includes a telecommunications network. The system includes n nodes, where n is an integer greater than or equal to 3, in communication with the network. The system includes a host node that creates a session through the network between the n nodes. The system includes an additional node in communication with the network, the host node adding the additional node to the session without any signaling messages being sent from the n nodes. A method for telecommunicating.

Abstract: A videophone. The videophone can include an imaging mechanism for taking a video picture of a scene. The videophone can include a mechanism for producing a first video stream of the scene and a second video stream of the scene from the video picture and sending the first video stream and the second video stream onto a network at the same time, the producing mechanism in communication with the imaging mechanism. The videophone can include a mechanism for receiving a plurality of video streams of different scenes from a network. The videophone can include a mechanism for displaying the different scenes of the plurality of video streams alongside each other. A method for a video call.

Abstract: A videophone. The videophone can include an imaging mechanism for taking a video picture of a scene. The videophone can include a mechanism for producing a first video stream of the scene and a second video stream of the scene from the video picture and sending the first video stream and the second video stream onto a network at the same time, the producing mechanism in communication with the imaging mechanism. The videophone can include a mechanism for receiving a plurality of video streams of different scenes from a network. The videophone can include a mechanism for displaying the different scenes of the plurality of video streams alongside each other. A method for a video call.

Abstract: A screen assembly for a projection television includes a screen panel, a lenticular screen and a Fresnel screen. The screen panel is attached directly to the television cabinet and sandwiches the Fresnel and lenticular screens therebetween. The screen panel projects laterally beyond the lenticular and the Fresnel screens and a recess may be provided in the television cabinet to receive the Fresnel and lenticular screens, so that the screen protection panel overlaps the front face of the cabinet sidewalls. In an exemplary embodiment, decorative bolts pass through the screen panel to secure the screen panel to the cabinet.

Abstract: A screen assembly for a television includes a front screen panel, an opaque masking layer applied to a perimeter of the front screen panel to define a masked perimeter area framing a viewable area of said screen assembly, and at least one touch control operatively coupled to the front screen panel in the masked perimeter area. Indicia identifies the location and/or function of the touch screen control.

Abstract: A teleconferencing system includes a network. The system includes a plurality of nodes, such as terminals, communicating with each other through the network with audio streams the terminals transmit to each other to form the conference. Each terminal able to detect an overload state where there are more than a predetermined number of simultaneous audio streams being transmitted by the terminals and together with the other terminals control the number of audio streams simultaneously being transmitted to end the overload state. A method providing a teleconference. A teleconferencing node.

Abstract: A teleconferencing system includes a network. The system includes a plurality of nodes in communication with each other to form a conference. Each node having a video display with a display layout, at least one of the nodes individually controlling at least partially the display layout of each node in the conference with a specific format able to be unique for each node. A method for providing a teleconference including the steps of forming a conference with a plurality of nodes in communication with each other through a network. Each node having a video display with a display layout. There is the step of controlling individually with at least one of the nodes at least partially the display layout of each node in the conference with a specific format able to be unique for each node. A teleconferencing node. A teleconferencing system includes a network. The system includes a plurality of nodes in communication with each other through the network to form a conference.

Abstract: A teleconferencing system includes a network. The system includes a content node having content and an address in the network and in communication with the network. The system includes a first user node and a second user node in communication with each other through the network to form a conference. The first user node able to provide the address of the content node through the network to the first and second nodes so the first and second nodes can both access the content of the content node during the conference. A method for providing a teleconference call. A teleconferencing node.

Abstract: An imaging apparatus. The apparatus includes a display mechanism for displaying an image. The apparatus includes a camera mechanism distributed throughout the display mechanism to take images of objects in view of the display mechanism. A screen. The screen includes a display for displaying an image. The screen includes a plurality of pinholes distributed in the display. The screen includes a plurality of sensors with at least one sensor of the plurality of sensors in alignment with and corresponding with one pinhole of the plurality of pinholes to receive light passing through the pinhole to image a ray of a specific size and a specific direction out from the display. A method for imaging.

Abstract: A screen assembly for a television includes a front screen panel, an opaque masking layer applied to a perimeter of the front screen panel to define a masked perimeter area framing a viewable area of said screen assembly, and at least one touch control operatively coupled to the front screen panel in the masked perimeter area. Indicia identifies the location and/or function of the touch screen control.

Abstract: A screen assembly for a projection television includes a screen panel, a lenticular screen and a Fresnel screen. The screen panel is attached directly to the television cabinet and sandwiches the Fresnel and lenticular screens therebetween. The screen panel projects laterally beyond the lenticular and the Fresnel screens and a recess may be provided in the television cabinet to receive the Fresnel and lenticular screens, so that the screen protection panel overlaps the front face of the cabinet sidewalls. In an exemplary embodiment, decorative bolts pass through the screen panel to secure the screen panel to the cabinet.

Abstract: An imaging apparatus. The apparatus includes a display means for displaying an image. The apparatus includes a camera means distributed throughout the display means to take images of objects in view of the display means. A screen. The screen includes a display for displaying an image. The screen includes a plurality of pinholes distributed in the display. The screen includes a plurality of sensors with at least one sensor of the plurality of sensors in alignment with and corresponding with one pinhole of the plurality of pinholes to receive light passing through the pinhole to image a ray of a specific size and a specific direction out from the display. A method for imaging.

Abstract: A method and apparatus for verifying the position of a target to be treated by a radiation therapy device may include an ultrasound probe used to generate ultrasound images of the target; a position sensing system for indicating the position of the ultrasound probe with respect to the radiation therapy device, whereby the location of the target with respect to the radiation therapy device is known; and the ultrasound image of the target may be aligned with radiation treatment data.

Abstract: Image display apparatus comprises a display monitor; an image frame buffer for storing data defining the color content of pixels of an image; and a control system for selecting from the frame buffer for each pixel displayed on the monitor the appropriate pixel data from the frame buffer. The relationship between the monitor pixels and the frame buffer pixels is defined by a preselected composite linear function, wherein the control system determines the frame buffer pixels corresponding to the monitor pixels by applying the preselected composite linear function in a stepwise manner.

Abstract: A removable sunglass assembly to be attached to a conventional eyeglass assembly having lenses, a lens frame, and bow members extending aft from the frame. The preferred embodiment of the removable sunglass assembly includes a one-piece lens member having side support members with the lens member serving as the frame, side support members, and a top support member. The resiliency of the one-piece arcuate lens member provides a clamping force by which the removable sunglass assembly can be attached to the conventional eyeglass assembly. The side support members locate and attach the removable sunglass assembly to the bow members of the conventional eyeglass assembly while a top support member locates the removable sunglass assembly to the top of the conventional eyeglass assembly. Reliable securing elements are provided by resilience of the material used to construct the arcuate lens member and the high-friction, resilient, and anti-skid material used to construct the side support members.