摘要 |
A mechanical memory as used with a movable barrier operator serves to provid e characterizing codes and/or executable code to the movable barrier operator. In one embodiment the mechanical memory is integrated with an RPM cup (20). The mechanical memory includes physical aspects that interact in a predetermined way with energy such as for example, light. This interaction c an include passage, reflection, and absorption. Regular placement of at least some of the physical aspects can be used to permit real-time monitoring of a t least one operating parameter of the movable barrier operator (such as motor speed or movable barrier position). In addition, these and/or additional physical aspects can be modified to correlate to data, such as or symbols, that represent the operator code. |