Abstract: a camera that enables a photographer to take pictures of himself as he takes pictures of other subjects. The camera has an image-collecting system (lens and CCD) pointed in the forward direction as in an ordinary video camera; it also has an image-collecting system pointed substantially backward towards the photographer. Electronic means in the camera combines the images such that the forward view is the main picture and the backward view (the photographer) appears as a picture-in-picture.

Abstract: A pop-top can with easy-to-lift tab having a can top with a score line and a tab having two ends. The first of such ends being the puncturing end, this end presses down to puncture the can when the tab is pulled. The second end is the lifting end. The can is opened by lifting and pulling the lifting end. The tab is pivoted to allow rotation. The can also has a ramp on the can top. When the tab is pushed to a position over the ramp, the ramp forces the lifting end of the tab to a lifted position, away from the can top thereby making the tab easy to lift.

Abstract: An acoustic wave filter (200, 300) having a substrate for supporting propagation of acoustic waves, and first (220, 315), second (235, 330) and third (210, 310) acoustic wave transducers disposed on the substrate. The first acoustic wave transducer (220, 315) includes at least one bus bar (221, 316) electrically coupled to a first electrical port (205, 305) of the acoustic wave filter (200, 300). The second acoustic wave transducer (235, 330) is disposed on the substrate in line with the first acoustic wave transducer (220, 315) and is acoustically coupled thereto. The second acoustic wave transducer (235, 330) includes at least one bus bar (236', 331) electrically coupled to a second electrical port (240, 345) of the acoustic wave filter (200, 300). The third acoustic wave transducer (210, 310) includes at least one bus bar (211, 311') electrically coupled to the first electrical port (205, 305).