Abstract: A method and apparatus is used for generating a perfectly random secret key between two or more transceivers in a wireless communication network. In a point-to-point system, both transceivers produce an estimate of the channel impulse response (CIR) based on the received radio signal. The CIR estimation is synchronized and may include error correction and detection. A long secret key of bits is generated from a digitized version of the CIR estimate, from which a perfectly secret encryption key is derived by privacy amplification.

Abstract: A vehicle-mounted personnel access platform assembly with ballistic protection is designed for mounting on a tactical vehicle. The platform assembly includes at least one mounting brace, and at least one access platform carried by the mounting brace. The access platform defines a raised horizontal surface for supporting personnel at an elevated location adjacent a body of the tactical vehicle. A ballistic wall adjacent the access platform is adapted for residing a spaced distance from the body of the tactical vehicle to protect personnel staged on the access platform.

Abstract: A method and apparatus is used for generating a perfectly random secret key between two or more transceivers in a wireless communication network. In a point-to-point system, both transceivers produce an estimate of the channel impulse response (CIR) based on the received radio signal. The CIR estimation is synchronized and may include error correction and detection. A long secret key of bits is generated from a digitized version of the CIR estimate, from which a perfectly secret encryption key is derived by privacy amplification.

Abstract: Many playsets include one or more tower sections with one or more platform sections supported above the ground or a similar support surface with a support structure or framing. In certain embodiments, a curved wall portion defines one or more panel openings. Subpanels may optionally be mounted into the openings. A balcony floor protrudes outwards with a curved outer edge or face with an interior flat floor edge adjoining an edge of a polygonal platform section floor to enlarge the square footage of the floor area of the platform section.

Abstract: Many playsets include one or more tower sections with one or more platform sections supported above the ground or a similar support surface with a support structure or framing. In certain embodiments, a curved wall portion defines one or more panel openings. Subpanels may optionally be mounted into the openings. A balcony floor protrudes outwards with a curved outer edge or face with an interior flat floor edge adjoining an edge of a polygonal platform section floor to enlarge the square footage of the floor area of the platform section.

Abstract: Many playsets include one or more tower sections with one or more platform sections supported above the ground or a similar support surface with a support structure or framing. In certain embodiments, a curved wall portion defines one or more panel openings. Subpanels may optionally be mounted into the openings. A balcony floor protrudes outwards with a curved outer edge or face with an interior flat floor edge adjoining an edge of a polygonal platform section floor to enlarge the square footage of the floor area of the platform section.

Abstract: The present invention relates to a damper (10) provided with an inner end strength member (20) and an outer end strength member (30) that are tubular and coaxial, a return member (40) being arranged between the inner end strength member (20) and the outer end strength member (30). The return member (40) includes an intermediate strength member (43) coaxial with the inner and outer end strength members (20, 30), said return member (40) having first and second return means (41, 42), said first return means (41) being arranged between the outer end strength member (30) and said intermediate strength member (43), said second return means (42) being arranged between the inner end strength member (20) and said intermediate strength member (43).

Abstract: Many playsets include one or more tower sections with one or more platform sections supported above the ground or a similar support surface with a support structure or framing. In certain embodiments, a curved wall portion defines one or more panel openings. Subpanels may optionally be mounted into the openings. A balcony floor protrudes outwards with a curved outer edge or face with an interior flat floor edge adjoining an edge of a polygonal platform section floor to enlarge the square footage of the floor area of the platform section.

Abstract: Many playsets include one or more tower sections with one or more platform sections supported above the ground or a similar support surface with a support structure or framing. In certain embodiments, a curved wall portion defines one or more panel openings. Subpanels may optionally be mounted into the openings. A balcony floor protrudes outwards with a curved outer edge or face with an interior flat floor edge adjoining an edge of a polygonal platform section floor to enlarge the square footage of the floor area of the platform section.

Abstract: A method of predicting workpiece deformation prior to machining that causes the workpiece to deform through release of residual stresses. The method includes emitting a beam of ultrasound waves onto the workpiece surface in such a way that a longitudinal wave is propagated in a given direction under and substantially parallel to the surface, positioning at least one transducer in receive mode on the surface to receive a subsurface longitudinal wave that has been propagated, and measuring the propagation velocity of the subsurface longitudinal wave. The method further includes performing these steps in two workpiece regions, a first region sensitive to residual stresses and a second region somewhat insensitive to residual stresses, then calculating a difference in propagation velocity between the velocity measured in the first region and the velocity measured in the second region and from the difference, deducing the deformation that will result from machining the first region.

Abstract: The present invention is a method and apparatus for the detection of portable electronic device functionality. In a preferred embodiment, the present invention includes a chemically coated antenna to serve as a trigger for device functionality detection. The chemically coated antenna may be passively or actively detected. In active detection, a detection apparatus releases a chemical which reacts or otherwise respods with the chemical trigger in a detectable manner. The detection apparatus detects the reaction, which is specific to the functionality of the portable electronic device. In passive detection, a detection device simply detects the chemical trigger, which is specific to the portable electronic device functionality. Other trigger embodiments utilizing optics, radio frequency (RF) signals, sound waves, and magnetic identification are also disclosed.

Abstract: A method and apparatus for providing a wireless transmit/receive unit (WTRU) with access to at least one peripheral device, and/or at least one peripheral device associated with an available auxiliary device. The current peripheral device requirements of the WTRU are determined. The radio frequency (RF) environment of the WTRU is scanned to determine if there are any available wireless peripheral devices or wireless auxiliary devices proximate to the WTRU. A determination is also made as to whether there is a wired peripheral device or a wired auxiliary device available. A list of currently available peripheral devices is compiled by scanning at least one peripheral device registry associated with at least one of a wireless auxiliary device and a wired auxiliary device. The list is presented on the WTRU's display and a user selects at least one of the available peripheral devices from the list.

Abstract: A frequency adapter (1) having at least first and second cylinders (11, 12) having respective elongate first and second side walls (13, 14), the second cylinder (12) being surrounded at least in part by the first cylinder (11), resilient return means (20) being in contact with the first and second side walls (13, 14). Said return means (20) comprise resilient first and second extreme layers (21, 22) each in contact with the first and second side walls (13, 14), said adapter (1) being provided with a fluid (30) arranged in a single chamber (100) between said first and second extreme layers (21, 22).

Abstract: A privacy service is provided for use in protection of user data transferred in a network, including a converged network. The privacy service extracts and measures service elements of a message containing user data. The service elements include an identity element, a trust element, a rights element and a security element. The privacy service performs security by comparing service elements with a user defined privacy policy. The privacy policy may also be based on particular factors relating to the application, context, and time of the message. In another embodiment, the privacy service provides controls that indicate when user data is misappropriated as a result of an infringement of the user defined privacy policy. Further the privacy service provides a means to audit and trace deviations from the privacy policy for the purpose of repudiation, or future defense of security threats.

Abstract: A method for transmitting an encrypted signal to a wireless transmit/receive unit (WTRU) such that decryption of the encrypted signal depends on a trust zone associated with the WTRU is disclosed. The encryption may be performed using hierarchical modulation, scrambling, authentication, location validation, or a combination thereof. The size of a trust zone may also be adjusted.

Abstract: A method for obtaining location information about a well as it is being drilled through a subsurface, comprises: providing at least one fiber optic cable deployed in a borehole within acoustic range of the well, the proximal end of the cable being coupled to a light source and a photodetector, the fiber optic cable being acoustically coupled to the subsurface formation so as to allow acoustic signals in the subsurface to affect the physical status of the cable, providing an acoustic source in the well, transmitting at least one light pulse into the cable, receiving at the photodetector a first light signal indicative of the physical status of at least one first section of the cable. The first section is selected so that the first light signal provides information about the position of the acoustic source, and outputting at least the information to a display.

Abstract: A vehicle-mounted personnel access platform assembly with ballistic protection is designed for mounting on a tactical vehicle. The platform assembly includes at least one mounting brace, and at least one access platform carried by the mounting brace. The access platform defines a raised horizontal surface for supporting personnel at an elevated location adjacent a body of the tactical vehicle. A ballistic wall adjacent the access platform is adapted for residing a spaced distance from the body of the tactical vehicle to protect personnel staged on the access platform.

Abstract: A deck deployment system is adapted to facilitate transfer of personnel between spaced elevations. The deck deployment system includes a deck defining a substantially flat and continuous deck surface for supporting personnel. A convertible stairway is hinged to the deck and adapted for movement between a stowed condition and a deployed condition. The convertible stairway includes an adjustable frame assembly and a series of articulating horizontally-disposed foot treads carried by the frame assembly. The foot treads remain substantially horizontal upon movement of the stairway between the stowed condition and the deployed condition. When the stairway is in the stowed condition, the foot treads integrate with the deck to form a substantially flat and continuous portion of the deck surface. When the stairway is in the deployed condition, the foot treads cooperate to form steps extending from the deck to an elevation spaced from the deck surface.

Abstract: Speakers are automatically identified in an audio (or video) source. The audio information is processed to identify potential segment boundaries. Homogeneous segments are clustered substantially concurrently with the segmentation routine, and a cluster identifier is assigned to each identified segment. A segmentation subroutine identifies potential segment boundaries using the BIC model selection criterion. A clustering subroutine uses a BIC model selection criterion to assign a cluster identifier to each of the identified segments. If the difference of BIC values for each model is positive, the two clusters are merged.