Abstract: A fixed sequence activation handle is described that forces a predetermined activation sequence. Such handles are suitable for use in the delivery of medical devices or for other application that require a fixed sequence of activations.

Abstract: A handheld modular digital photography system is provided. A lens assembly includes a plurality of lens elements aligned on an optical axis to form an optical image on a plane of a digital image sensor. Both the lens elements and image sensor are fixedly mounted within a lens barrel. The image sensor is electrically-interfaced to a controller with a wireless transceiver. A modular chassis includes a structural frame, lens mount, and shutter control. The structural frame includes a cradle shaped to securely hold a handheld mobile device and an electrical coupler configured to electronically interface with the mobile device. The lens mount is on an outer surface of the modular chassis. The shutter control is provided to electrically signal the mobile device. The mobile device wirelessly sends the signal to the controller, which triggers image capture by the image sensor and wireless relay of the captured image to the mobile device.

Abstract: A fixed sequence activation handle is described that forces a predetermined activation sequence. Such handles are suitable for use in the delivery of medical devices or for other application that require a fixed sequence of activations.

Abstract: An audio and video playing system includes a controlling device and an audio and video playing device. The controlling device executes a movement. The audio and video playing device has an optical sensing unit and a processing unit. The optical sensing unit senses an image of the controlling device and outputs a signal to the processing unit. The processing unit recognizes the signal to determine the movement of the controlling device and outputs a corresponding control command to control the audio and video playing device.

Abstract: An audio and video recording and playing apparatus includes a container-like body and a lid. The container-like body has an audio and video recording and playing module. The audio and video recording and playing module receives and plays an audio and video signal. The lid is provided at an opening of the container-like body and electrically connected to the audio and video recording and playing module. The operation of the audio and video recording and playing module is controlled according to a relative position relationship between the lid and the container-like body.

Abstract: A pointing device connected to a computer system is used to control the movement of a cursor in a screen of the computer system. A loop-like touch pad is disposed on the top surface of the pointing device. When a user's finger touches and rotates clockwise/counterclockwise on the loop-like touch pad images in the screen can be continuously scrolled downward/upward.