Systems and methods can detect a relationship between portions of an analog input signal using a single sensing point, and can provide information about the detected relationship in a digital signal. Several projectors are used in a typical installation. A withdrawal device and a first acceleratable section are arranged in at least one partial flow. The tissue engaging members are articulatable with respect to the handle portions, such that movement of the handle portions after the tissue engaging members are secured to the heart’s surface will not dislodge or displace the tissue engaging members. Hence, an award for the trajectory-based game of chance may be proportional to the probability of the aspect of the game object’s trajectory occurring. 11, and the key sequence by the ICV is dual-encrypted by XOR operated with the transmission data, and thereby, wiretapping and sensing from outer side can be blocked.