Abstract: A wearable translation device that provides real-time language translation without a network connection is provided. The wearable translation device picks up speech from a user in a first language using a microphone facing the user, translates it into a second language, and outputs synthesized speech in the second language through a speaker facing the listener. The use of large speakers allows for greater comprehensibility than with existing systems. In some embodiments, noise cancellation signals are output through a speaker facing the user to reduce the amount of the user's voice and ambient background noise that is audible to the listener. In some embodiments, the wearable translation device provides two-way translation.

Abstract: A dental handpiece guide is provided comprising a mounting plate to be secured to the teeth, a moveable adjustment section secured detachably by a suitable fastener to the plate, and a parallel link assembly rotatably mounted on the adjustment section. The parallel link assembly is comprised of at least one set of parallel arms or links. A post carrier assembly pivotally mounted to the distal ends of the parallel arms of the parallel link assembly. A post is pivotally mounted on said post carrier assembly. A sleeve slidingly receives the post and has a projecting arm extending therefrom. The projecting arm has an aperture which receives the head of a dental handpiece. The post can be adjusted to assume a desired orientation relative to the parallel planes containing the parallel link assembly and the post carrier assembly, so that the cutting axis of the dental handpiece cutting instrument can thereby achieve any one of a variety of fixed orientations with respect to the teeth.