Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-03-28
2006-03-28
Corsaro, Nick (Department: 2682)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S575100, C455S090300
Reexamination Certificate
active
07020504
ABSTRACT:
A circuit and method of processing malfunction of a hall effect switch used for recognition of an open/close state of a flip or folder of a terminal. The circuit includes an output terminal of the hall effect switch for outputting a first-state or second-state signal that indicates the open/close state of the flip or folder by sensing change of a magnetic field according to opening/closing of the flip or folder, a flip/folder-state input terminal for transferring the first-state or 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 resistor and the capacitor.
REFERENCES:
patent: 5192877 (1993-03-01), Bittebierre et al.
patent: 5473250 (1995-12-01), Dillman
patent: 5844411 (1998-12-01), Vogt
patent: 6265864 (2001-07-01), De Winter et al.
patent: 2002/0068533 (2002-06-01), Bilotti et al.
Corsaro Nick
Dilworth & Barrese LLP
Persino Raymond B.
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