Patent ID: 7020504
Filing Date: 2006-03-28
Classification: H03K,H04M

Abstract:
1. A circuit for processing a malfunction of a hall effect switch used for recognition of an open/close state of a flip or a folder of a terminal, the circuit comprising: an output terminal of the hall effect switch for outputting a first-state or a second-state signal that indicates the open/close state of the flip or the folder by sensing a change of a magnetic field according to an opening/closing of the flip or the folder; a flip/folder-state input terminal for transferring the first-state or the second-state signal to a control section of the terminal; a first pull-up resistor connected to the flip/folder-state input terminal; a ripple-removing capacitor connected to the flip/folder-state input terminal; and a second resistor of which one terminal is connected to the output terminal of the hall effect switch and the other terminal is connected to a connection point of the first pull-up resistor and a capacitor.