Abstract: Techniques are disclosed relating to biometric authentication, e.g., facial recognition. In some embodiments, a device is configured to verify that image data from a camera unit exhibits a pseudo-random sequence of image capture modes and/or a probing pattern of illumination points (e.g., from lasers in a depth capture mode) before authenticating a user based on recognizing a face in the image data. In some embodiments, a secure circuit may control verification of the sequence and/or the probing pattern. In some embodiments, the secure circuit may verify frame numbers, signatures, and/or nonce values for captured image information. In some embodiments, a device may implement one or more lockout procedures in response to biometric authentication failures. The disclosed techniques may reduce or eliminate the effectiveness of spoofing and/or replay attacks, in some embodiments.

Abstract: A system for lineally transporting logs, lugs therefor, and an associated method are provided. The system includes first and second tracks that are machined and connected to a frame to provide continuous track surfaces. The first track, which is formed of portions that are keyed to the frame, defines a nonlinear cross section. Lugs having support surfaces that correspond to the track surfaces are configured to be driven longitudinally along the tracks, and the non-linear contour of the first track prevents the lugs from moving transversely. The track portions are machined to define track surfaces, and the first track portions are keyed to the frame so that the first track portions are substantially collinear and the first track surface is uniform and continuous in the longitudinal direction of the track, thereby reducing transverse motion of the log during transport.

Abstract: A system for lineally transporting logs, lugs therefor, and an associated method are provided. The system includes first and second tracks that are machined and connected to a frame to provide continuous track surfaces. The first track, which is formed of portions that are keyed to the frame, defines a nonlinear cross section. Lugs having support surfaces that correspond to the track surfaces are configured to be driven longitudinally along the tracks, and the non-linear contour of the first track prevents the lugs from moving transversely. The track portions are machined to define track surfaces, and the first track portions are keyed to the frame so that the first track portions are substantially collinear and the first track surface is uniform and continuous in the longitudinal direction of the track, thereby reducing transverse motion of the log during transport.

Abstract: A protective cover is provided for a bicycle or the like. The cover is adapted for use with several types of bicycles, such as multispeed road, hybrid or mountain bikes, for protective purposes. The cover has side wall members extending over and substantially covering the side of the wheel and tire portions of the bicycle. The cover also a center panel which is mounted extending between the side wall members to fit over and cover the seat and handlebars. The center panel is shaped for use with various seat and handlebar arrangements. The cover may also be provided with a cover sleeve or fitting for aero bars, the arm rests or weight supports provided for use with bicycles in competitive cycling events.