摘要:
A new approach to capturing and reproducing either live or recorded three-dimensional sound is described. Called MTB2.5 for “Motion-Tracked Binaural 2.5,” the method employs six real or simulated microphones, a head tracker, and special signal-processing procedures to combine the signals picked up by the microphones. In the microphone array, two central microphones are placed at the positions of the ears of a listener facing forward, and four peripheral microphones are located in pairs on either side of the central microphones. Only the low-frequency components of the four peripheral microphone signals are needed, and the total bandwidth required is approximately 2.5 times the bandwidth of one full-bandwidth audio channel. MTB2.5 achieves a high degree of realism by effectively placing the listener's ears in the space where the sounds are occurring, moving the virtual ears in synchrony with the listener's head motions. MTB2.5 also provides a universal format for recording spatial sound.
摘要:
A flexible substrate has a major surface and a sensor attached to and aligned with the major surface of the substrate. The sensor may have an elastic body containing conductive nanotubes homogeneously distributed therein to form a conductive path and at least two electrodes in electrical connection with the conductive path. Balloons and flexible elements used in medical procedures are particularly useful.
摘要:
A pressure sensing element has at least a housing containing a fluid. The housing has at least two moveable surfaces in contact with the fluid in the housing; There is a first moveable surface comprising a pressure application surface which, when moved towards, away from, into or out of the fluid, creates a change in fluid pressure and a second moveable surface in contact with the fluid in the housing comprising a membrane which, when deformed by pressure changes in the fluid, alters its electrical resistance. The membrane has two electrodes attached to deformable material in the membrane. The membrane my have an elastomer having conductive particles distributed therein. The elastomer may be a dielectric and the particles are conductive nanoparticles.
摘要:
A device allows access into a body has at least: A first cannula with an outer surface, an inner lumen surface, an inner lumen diameter and proximal and distal end portions; and An expandable covering over the outer surface, the expandable covering having an outer surface and an inner surface; and The inner surface of the expandable covering remaining in contact with the outer surface of the first cannula.
摘要:
An apparatus and method for stabilizing a fuser in an imaging apparatus. The apparatus includes a hub having a body. The body comprises an outside diameter configured to be at least partially disposed inside an end of a fuser core. The apparatus also includes an elastomeric collar having an inside diameter, wherein the inside diameter is at least partially disposed over the outside diameter of the hub.
摘要:
An exercise apparatus is arranged to include a spherical body spaced from a handle to permit swinging of the spherical body to promote extension of an individual's arms during an exercise procedure such as walking. A modification of the invention includes the spherical body formed with an upper and lower cylindrical wall defining a planar annular plate to accommodate a mounting plate that in turn is arranged to receive various weighted cups to permit modification and tailoring of the weight of the spherical body portion. Indicator lights are arranged in a modifier aspect of the invention to permit utilization of the organization during evening hours to alert passing individuals as to the position of a walking individual.
摘要:
A flexible substrate has a major surface and a sensor attached to and aligned with the major surface of the substrate. The sensor may have an elastic body containing conductive nanotubes homogeneously distributed therein to form a conductive path and at least two electrodes in electrical connection with the conductive path. Balloons and flexible elements used in medical procedures are particularly useful.
摘要:
A flexible substrate has a major surface and a sensor attached to and aligned with the major surface of the substrate. The sensor may have an elastic body containing conductive nanotubes homogeneously distributed therein to form a conductive path and at least two electrodes in electrical connection with the conductive path. Balloons and flexible elements used in medical procedures are particularly useful.
摘要:
A new approach to tracking head motion for headphone-based sound is described. Called MTB2.0 for “Motion-Tracked Binaural with 2 Channels”, the method may be used for any 2-channel binaural signals without any increase in the bandwidth requirement. MTB2.0 provides a simple and effective means to improve the quality of headphone-based sound reproduction by sensing the orientation of the listener's head and using the sensed orientation to appropriately modify the signals sent to the two ears. MTB2.0 method increases the realism and removes some of the shortcomings of binaural sound capture and recording, as well as improves the quality of binaural rendering of stereo.