Abstract: A sign including a frame configured to support a sign face. The frame includes a first section and a second section. The sign also includes a first bracket coupled to the frame, the first bracket defines a longitudinal axis, and a second bracket coupled to the first bracket. The second bracket is rotatable with respect to the first bracket, and the second bracket is movable between a first position in which the second bracket extends transverse to the longitudinal axis and a second position in which the second bracket extends along the longitudinal axis. The sign also includes a light bar coupled to the second bracket. The second section is movable with respect to the first section between an installed position and a collapsed position.

Abstract: A sign including a frame configured to support a sign face. The frame includes a first section and a second section. The sign also includes a first bracket coupled to the frame, the first bracket defines a longitudinal axis, and a second bracket coupled to the first bracket. The second bracket is rotatable with respect to the first bracket, and the second bracket is movable between a first position in which the second bracket extends transverse to the longitudinal axis and a second position in which the second bracket extends along the longitudinal axis. The sign also includes a light bar coupled to the second bracket. The second section is movable with respect to the first section between an installed position and a collapsed position.

Abstract: A multi-chip system and method are disclosed that utilizes a plurality of graphics pipelines to perform large kernel convolution. Each graphics pipeline includes a standard rendering unit and a video data convolve unit. Each video data convolve unit receives video pixel data from the video output of the standard rendering unit. The video data convolve units are connected in a chain. Each group of one or more video data convolve units in the chain convolves the video pixel data received by the group. The last video data convolve unit in the chain outputs a stream of convolved pixels.

Abstract: A system and method are disclosed for improving the remote display of graphics images by the redirection of rendering and the optional use of image data compression. Instead of sending graphics commands over a network and rendering on a remote computer system, graphics commands may be automatically redirected by modified OpenGL functions to local graphics devices without explicit involvement by the graphics application. The modifications to a set of the OpenGL functions on the local system are transparent in the normal mode of rendering and displaying locally. After an image is rendered locally, it may be read back and sent across the network. A standard X Server on the remote system may be sufficient to support this methodology. An X Extension for data decompression on the remote system, however, may allow for more efficient image transmission through the use of image data compression.

Abstract: A multi-chip system is disclosed for distributing the convolution process. Rather than having multiple convolution chips working in parallel with each chip working on a different portion of the screen, a new design utilizes chips working in series. Each chip is responsible for a different interleaved region of screen space. Each chip performs part of the convolution process for a pixel and sends a partial result on to the next chip. The final chip completes the convolution and stores the filtered pixel. An alternate design interconnects chips in groups. The chips within a group operate in series, whereas the groups may operate in parallel.

Abstract: A system and method are disclosed for improving the remote display of graphics images by the redirection of rendering and the optional use of image data compression. Instead of sending graphics commands over a network and rendering on a remote computer system, graphics commands may be automatically redirected by modified OpenGL functions to local graphics devices without explicit involvement by the graphics application. The modifications to a set of the OpenGL functions on the local system are transparent in the normal mode of rendering and displaying locally. After an image is rendered locally, it may be read back and sent across the network. A standard X Server on the remote system may be sufficient to support this methodology. An X Extension for data decompression on the remote system, however, may allow for more efficient image transmission through the use of image data compression.

Abstract: A system and method for transferring a compressed image from a local computer system to a remote computer system, and inducing image decompression and display at the remote computer system. A user of the local computer system invokes a software application on the local computer system. The application compresses an image, and calls an X extension function to induce transfer of a data stream containing the compressed image to a remote X Server executing on a remote computer system. The remote X Server receives the data stream, and invokes an executable code corresponding to the X extension function in response to receiving the data stream. The executable code controls the decompression of the compressed image, and calls a standard X internal PutImage operation to display the decompressed image on a display associated with the remote computer system.

Abstract: A system and method are disclosed for improving the remote display of graphics images by the redirection of rendering and the optional use of image data compression. Instead of sending graphics commands over a network and rendering on a remote computer system, graphics commands may be automatically redirected by modified OpenGL functions to local graphics devices without explicit involvement by the graphics application. The modifications to a set of the OpenGL functions on the local system are transparent in the normal mode of rendering and displaying locally. After an image is rendered locally, it may be read back and sent across the network. A standard X Server on the remote system may be sufficient to support this methodology. An X Extension for data decompression on the remote system, however, may allow for more efficient image transmission through the use of image data compression.

Abstract: An application sharing and collaboration (ASC) system comprising a first computer, where the first computer is configured to execute a graphics application. The graphics application is configured to: (a) call a set of OpenGL rendering functions to render an image into a local buffer, and (b) call a particular OpenGL function which has been modified to induce compression of the image from the local buffer and transfer of the compressed image to a set of one or more remote systems. Each of the one or more remote systems may be configured to: decompress the compressed image, and display the decompressed image.

Abstract: A programmable controlled-exposure radon measurement system includes a radon detector of the type that is programmably inhibited or enabled at selected times to effect randon measurement. In the preferred embodiment, a radon detector of the type having an electret within a chamber is located at the test site and the container opened and closed to the ambient atmosphere at selected times to limit exposure to certain intervals during the day for a selected number of successive days. The container is opening by an actuator, such as an electro-actuator or a fluidic actuator, under the control of a programmable controller, such as a 7-day timer or a stored program controlled microprocessor. A fail-safe function is provided by which the radon detector is inhibited in the event of a power failure to preserve test data up to the time of the power failure.