Abstract: A system for generating a digital representation of a video signal comprised of a sequence of video frames which each include two video fields of a duration such that the video plays at a first prespecified rate of frames per second. The sequence of video frames includes a prespecified number of redundant video fields. Redundant video fields in the video frame sequence are identified by a video processor, and the video frame sequence is digitized by an analog to digital convertor, excluding the identified redundant video fields. The digitized video frames are then compressed by a video compressor to generate a digital representation of the video signal which plays at a second prespecified rate of frames per second.

Abstract: Porous polymer monoliths are made thermally responsive by functionalizing/grafting the pores with thermally responsive polymers and copolymers. Depending on the reaction conditions employed, the grafted polymer can either completely block flow through micrometer-sized pores in the monoliths or control the flow rate through the monoliths. The grafted monoliths are useful as thermal gates, thermal valves, and for isocratic hydrophobic interaction chromatography of proteins.

Abstract: A system for generating a digital representation of a video signal comprised of a sequence of video frames which each include two video fields of a duration such that the video plays at a first prespecified rate of frames per second. The sequence of video frames includes a prespecified number of redundant video fields. Redundant video fields in the video frame sequence are identified by a video processor, and the video frame sequence is digitized by an analog to digital convertor, excluding the identified redundant video fields. The digitized video frames are then compressed by a video compressor to generate a digital representation of the video signal which plays at a second prespecified rate of frames per second.

Abstract: Creating a transition between a first sequence of video frames and a second sequence of video frames. The method includes storing a table of values that express a non-linear response to certain levels of light, generating a transition between the sequences, and adjusting the intensity at which material of the first sequence is displayed relative to the intensity at which material of the second sequence is displayed within the transition, based on the values stored in the step of storing.

Abstract: Method and apparatus for editing transitions between sequences of video frames, generally including simultaneously displaying the frames in the first and second sequences that are at the beginning of the transition, and the frames in the first and second sequences that are at the end of the transition. The position of two of the four frames may be altered in their respective sequence to redefine the transition in response to a move command. Move commands may include center positioning commands, beginning commands, and end commands. The rate of change within the transition may also correspond to a predefined film characteristic.

Abstract: Digital audio/video insertion and broadcast system. The system takes audio/video source information and digitizes, compresses and stores the information. The storage is in a random access medium such as magnetic or optical disks. Playing apparatus decompresses the information and regenerates an analog signal. Patching apparatus inserts the regenerated analog signal into a broadcast or cable channel at preselectable times. Editing apparatus may be provided for editing a stored video file prior to playing.

Abstract: The invention improves over the prior art by providing a media pipeline with two channels for processing sequences of digital still images. A blender is provided so as to enable simple effects on these two streams of video data such as dissolves, wipes and chroma keys. Complex arbitrary three-dimensional effects and other effects may also be provided using an external interface.Thus, a system for processing sequences of digital still images to provide real-time digital video effects includes first and second channels for communicating first and second sequences of digital still images at a rate for simulating video. A controller directs still images to one of the first and second channels. A blender, having a first input connected to the first channel, a second input connected to the second channel, and an output, provides a combination of the first and second sequences of digital still images at a rate for simulating video.

Abstract: A data buffer that compensates the differences in data rates, between a storage device and an image compression processor. A method and apparatus for the real time indexing of frames in a video data sequence.

Abstract: A system for the management of media data based on user instructions. A system for the management of of relational information between media sources is provided as is a method for determining media data associated with requests based on source identifiers and range specification on the source of the data.

Abstract: A media editing system for editing source material comprising digitizing apparatus for receiving and digitizing video and audio source material, the video source material including a sequence of images, each spanning both the horizontal and vertical display axes of the video source material. The editing system also includes computing apparatus including compression apparatus responsive to the digitizing apparatus. The compression apparatus compresses the images from the video source material. The computing apparatus determines if at least one of the compressed images occupies more than a target amount of storage and provides an indication if the at least one of the compressed images does occupy more than the target amount of storage. The compression apparatus is responsive to this indication to adjust its level of compression. The computing apparatus is also for manipulating the stored source material.

Abstract: Creating a transition between a first sequence of video frames and a second sequence of video frames. The method includes storing a table of values that express a non-linear response to certain levels of light, generating a transition between the sequences, and adjusting the intensity at which material of the first sequence is displayed relative to the intensity at which material of the second sequence is displayed within the transition, based on the values stored in the step of storing.

Abstract: A data buffer that compensates the differences in data rates, between a storage device and an image compression processor. A method and apparatus for the real time indexing of frames in a video data sequence.

Abstract: An image digitizer including a pixel engine connected to both a video memory and a processor. The pixel engine is configured to enable pixels to be transferred out of memory or read into memory while bypassing the processor thereby allowing more efficient transfer of data into and out of the image digitizer.

Abstract: A bile acid sequestrant having a crosslinked polymeric matrix and having branches supported on the polymeric matrix and providing bonding sites for binding bile acid conjugates to the sequestrant, pharmaceutical compositions containing the sequestrant for treatment of elevated plasma cholesterol level are described.

Abstract: Method and apparatus for editing transitions between sequences of video frames, generally including simultaneously displaying the frames in the first and second sequences that are at the beginning of the transition, and the frames in the first and second sequences that are at the end of the transition. The position of two of the four frames may be altered in their respective sequence to redefine the transition in response to a move command. Move commands may include center positioning commands, beginning commands, and end commands. The rate of change within the transition may also correspond to a predefined film characteristic.

Abstract: Media composer for editing source material. The media composer includes apparatus for receiving digitizing, storing and editing video and audio source material. Computing apparatus manipulates the stored source material and output apparatus communicates with the computing apparatus to display the manipulated material and control information. The computing apparatus includes JPEG compression techniques and is programmed to provide enhanced editing features.

Abstract: An image digitizer including a pixel engine connected to both a video memory and a processor. The pixel engine is configured to enable pixels to be transferred out of memory or read into memory while bypassing the processor thereby allowing more efficient transfer of data into and out of the image digitizer.

Abstract: Treatment of water-soluble, amine-containing polymers with strong acid, cation exchange resins from aromatic copolymer crosslinked with 2-25% polyvinyl crosslinker, followed by ultrafiltration with a membrane filter having a molecular-weight cutoff, measured against the polymers to be treated, of about 10,000 to about 15,000, results in a highly effective removal of residual monomers and oligomers of less than 500 molecular weight.

Abstract: The invention is a data pipeline system which synchronizes the display of digitzed audio and video data regardless of the speed at which the data was recorded on its linear medium. To do this, the video data is played at a constant speed, synchronized by the audio speed. Further, the invention uses a method of "staging" data in storage buffers, i.e., ring buffers, which encourages efficient use of the viewer module resources by not permitting the viewer to read excessive amounts of data at any one time, i.e., to read only enough data into any one ring buffer so that the amount of data in the ring buffer is roughly equivalent to the amount of data in the other ring buffers and yet permitting the viewer to read large enough chunks of data to promote efficient use of the fill system.

Abstract: Disclosed is a digital data processing system for scanning, compressing, storing, decompressing, and displaying digital video data, e.g., full motion video sequences such as those from a color television sequence or still photographs, in real time, e.g., at a rate of 30 frames per second for full motion video. The system operates in a personal computer environment, e.g., Macintosh II, using commonly available microprocessors, filing system, and display units.