Three new Nintendo patent applications were published today, according to a thread on NeoGAF. The products seem to be a continuation of the handheld concept we saw earlier in the year. There seems to be more about the handheld’s hand/gesture tracking feature in more detail from two of the patents. The third one talks about attaching an accessory to the side of the portable device. The device uses the infrared camera to read the button presses instead of actually using any form of electrical connection between the two. In other words, the product would use the camera to detect pressed buttons, instead of electricity. We’ve included a gallery below with all the pictures of the patent products. If you want, feel free to check them out.