Patent ID: 8638227
Filing Date: 2014-01-28
Classification: E05B,G07C

Abstract:
1. An input device of an electronic combination lock, comprising: a signal device for producing combination input information and for converting said information into two groups of electrical pulse signals; a measurement and control device connected to said signal device for measuring the electrical pulse signals outputted from the signal device, deciding the order of the electrical pulse signals and calculating correspondingly such that said signals are converted into character sequences including combination elements, and deciding whether said current combination elements are confirmed to be inputted or not and deciding whether the input of all the combination elements is completed or not; a confirmation device connected with said measurement and control device and used for producing a confirmation signal for inputting each single entry of a combination element to indicate that the input of the single entry is confirmed; and a display device connected with said measurement and control device for displaying, said character sequences and for displaying prefabricated prompt information in a rolling and refreshing manner by the driving of said measurement and control device, wherein said confirmation device is a switch device, an electrical signal produced when it is closed allows said measurement and control device to confirm the current combination element displayed by said display device as a part of a final input combination, said signal device consists essentially of: wherein said measurement and control device is a programmed microcontroller; wherein said display device is an information display screen, wherein said switch device is a photoelectric switch, wherein said programmed microcontroller, said coder, said information display screen and said photoelectric switch are provided on a same circuit board, said circuit hoard is provided within said panel body, and said microcontroller is connected electrically with said coder, said information display screen and said photoelectric switch, respectively, wherein the outer edge of said dial is a circular skirt-like fringe, the position of said photoelectric switch corresponds to the skirt-like fringe of said dial, when said dial is depressed, the light transmitted to the photoelectric switch is blocked by said skirt-like fringe, thereby a signal is produced by said photoelectric switch, and wherein the single combination entry is a single character or single digit entry.