Techniques are described for switching from a data session to a voice session, then back to the data session. A "primary" data connection is established between a user's terminal and a communications network, which provides the user terminal with a tag identifying a voice network address (typically ...
A method and apparatus for time multiplexing and demultiplexing two channels of picture information within a standard video channel. The method is specifically designed for field sequential stereoscopic display applications, but may be used for non-stereoscopic applications where conservation of ban ...
A method and apparatus for image compression suitable for personal computer applications, which compresses and stores data in two steps. An image is captured in real-time and compressed using an efficient method and stored to a hard-disk. At some later time, the data is further compressed in non-rea ...
A first inflatable retraction device has a first inflatable chamber and a non-pressurized chamber inside the main chamber. The non-pressurized chamber is expanded by inflating a second inflatable chamber. The non-pressurized chamber enables the main chamber to remain inflated when an aperture is cut ...
A system and method of providing a virtual reality space that can be shared by unspecified users world-wide by the steps of composing, when a Universal Resource Locator (URL) is transmitted from a client terminal via a network, a three-dimensional virtual reality space of only basic objects of which ...
A fluid powered electrical generator having an impellor-rotor rotatively mounted on a central support structure. A toroidal outer support structure surrounds the impellor-rotor, with the impellor-rotor including a plurality of circumferentially spaced-apart fluid dynamic blades. The outward ends of ...
Elongate flexible elements are guided into place within a tortuous body passage by providing the elements with annular guides adjacent their distal ends and sliding the elements over a guide wire extended through the passage. Column strength to move the elements through the body passage may be provi ...
A self-contained, high capacity nebulizer, having automatic mixing and temperature control features is provided, and its method of use. The nebulizer is designed for use in conjunction with mechanical respirators, ventilators, or breathing machines, and for this purpose will use electrical signals g ...
A method and apparatus for tracking, recording and analyzing a subject's jaw motion is provided. Cross-haired targets are non-intrusively fixed in relation to the subject's upper and lower jaws. Three video cameras are disposed about the subject's head, each camera lens being focused on the targets. ...
A system for aiding in the positioning of a catheter. The system includes a basket shaped catheter having a plurality of bipoles arranged thereon for sensing voltage potentials generated by tissue. An analog to digital converter is coupled to the catheter and configured to convert the sensed voltage ...
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