Abstract: Various embodiments of a swab device, system, and method are provided for measuring and assessing saliva flow in the mouth of a person. In one embodiment, a system includes a swab device and a measuring device. The swab device includes a handle portion and a swab portion, the handle portion being elongated to extend between a proximal end and a distal end. The swab portion is coupled to a distal portion of the handle portion and is sized and configured to collect saliva from the mouth. The measuring device is sized and configured to measure an amount of the saliva collected with the swab portion, the measuring device including a nesting portion integrated therewith. Such nesting portion of the measuring device is sized and configured to receive the proximal end of the handle portion of the swab device to measure the saliva collected therewith.

Abstract: A method of providing group directory services for mobile communication devices includes the steps of maintaining a registry of user profiles established and maintained by mobile communication device users, wherein each user profile includes data representative of a user's name and preferred contact method; and permitting a group administrator to access the registry and create a group directory consisting of at least some members who have user profiles in the registry by linking the members' user profiles to the group directory.

Abstract: A method and system for providing cross-carrier contact information for mobile users of mobile communication devices and other mobile communication devices provides a single registry of user profiles, wherein each user profile is established and maintained by a user so that each user may control how and by whom they are contacted. The registry of user profiles may be accessed with a client software application on a calling party's mobile communication device. The calling party may transmit a look-up request to the registry over a data channel. The registry receives the look-up request and locates a user profile that matches the look-up request and provides the user profile to the calling mobile communication device. The user profile does not display the mobile communication device number for the called mobile communication device.

Abstract: An apparatus comprising a first differential output driver to provide a single ended output voltage in response to an input voltage, a second differential output driver to provide a single ended output in response to the input voltage where the first output voltage and the second output voltage are representative of the positive and inverted input voltage. The apparatus also includes a feedback circuit to monitor the first and second output voltages and apply a bias voltage to at least one of the first and second output drivers to vary the point where the first and second output voltages cross-over as the input voltage changes from a first to a second level.

Abstract: An apparatus comprising a first differential output driver to provide a single ended output voltage in response to an input voltage, a second differential output driver to provide a single ended output in response to the input voltage where the first output voltage and the second output voltage are representative of the positive and inverted input voltage. The apparatus also includes a feedback circuit to monitor the first and second output voltages and apply a bias voltage to at least one of the first and second output drivers to vary the point where the first and second output voltages cross-over as the input voltage changes from a first to a second level.

Abstract: An amplifier and system includes hysteresis circuits.

Abstract: A grinding guide assembly for grinding or sharpening the carbide surface of a snowmobile wear bar. The grinding guide assembly features a pair of angle adjusters and a support guide that slide together back and forth across a pair of substantially parallel rods. The angle at which the wear bar contacts the grinding surface may be selected while the wear bar is securely clamped to the support guide. The length of the rods may be any desired length to allow the grinding guide assembly the capability to grind or sharpen an object of any length.