Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
1998-09-28
2001-02-27
Tsang, Fan (Department: 2746)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S566000, C455S569200, C455S575100, C455S090300, C455S556200, C455S557000, C379S420040, C379S433020, C379S430000, C379S431000, C379S428030
Reexamination Certificate
active
06195570
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a mobile terminal provided with a radio telephone function.
2. Description of the Related Art
Recently, a mobile terminal provided with a communication function such as a telephone and data communication, and so on, is widely popular. For a general mobile terminal provided with a telephone function, to solve a problem of large size caused by providing dial keys with which a normal telephone set is provided, a touch-panel is adopted. Therefore, if a user uses a telephone function, a dial screen is displayed on a liquid-crystal display (LCD) when the user presses a predetermined switch. The user can make a call and others by pressing each touch tone dial on the displayed dial screen.
However, for such a mobile terminal, if such a mobile terminal is put in a bag or a pocket with a dial screen displayed on LCD, there is a problem that a key is pressed by mistake and a call is made.
In a radio telephone disclosed in Japanese laid-open patent application heisei4-192850, calling operation is limited based upon whether an earphone jack is inserted or not. Therefore, in such a radio telephone, if the mobile telephone is put in a bag or a pocket, a call is prevented from being made when a user detaches an earphone jack from the mobile terminal even if a key is pressed by mistake.
However, such a radio telephone has a problem that operability is deteriorated because predetermined key operation is required to make a call after the insertion of the earphone jack.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a mobile terminal obtained by further improving a conventional type mobile terminal.
Another object of the present invention is to provide a mobile terminal in which operability is enhanced by automatically displaying a dialing screen if an earphone jack is inserted into the mobile terminal.
Further another object of the present invention is to provide a mobile terminal the flexibility of which is enhanced by enabling even a user who does not know a method of operating the mobile terminal at all to readily use the mobile terminal as a telephone set.
Furthermore another object of the present invention is to provide a mobile terminal in which operation for users to communicate can be promptly executed by automatically displaying a dialing screen if a protective cover is opened with an earphone jack inserted into the mobile terminal.
The other object of the present invention is to provide a mobile terminal in which a call is automatically finished if an earphone jack is pulled out of the mobile terminal and a user can do the next processing promptly by making a menu screen display.
To achieve the above objects, a mobile terminal according to the present invention is provided with display means for displaying a menu screen, detection means for detecting the insertion of an earphone jack and control means for switching said menu screen to a dialing screen for executing a telephone function based upon the output of said detection means. The mobile terminal according to the present invention is also provided with communication means for enabling communication using a telephone function. The display means displays a dialing screen. The control means controls the above display means so that the above menu screen is switched to the above dialing screen if the insertion of an earphone jack is detected. It is desirable that the dialing screen is a ten key screen or an address book screen. The mobile terminal according to the present invention is also provided with selection means for selecting either the ten key screen or the address book screen. The mobile terminal according to the present invention is further provided with judgment means for judging whether the mobile terminal exists inside a receivable area or not and the display means displays a predetermined warning message if the insertion of an earphone jack is detected when it is judged that the mobile terminal does not exist inside a receivable area. The mobile terminal according to the present invention is also provided with comparison means for comparing the voltage value of a cell for driving the mobile terminal with a predetermined value and the display means displays a predetermined warning message if the insertion of an earphone jack is detected when the voltage value of the cell is smaller than a predetermined value. The mobile terminal according to the present invention is also provided with operation means for operating so that functions except the above telephone function are executed. The mobile terminal according to the present invention is also provided with interruption means for interrupting the execution of a function except the telephone function if the insertion of an earphone jack is detected when the function except the telephone function is executed. The mobile terminal according to the present invention is also provided with resumption means for resuming the execution of the function interrupted by the interruption means after a call is finished. The mobile terminal according to the present invention is provided with judgment means for judging whether an earphone jack is pulled out or not during a call and ring-off processing means for executing the ring-off processing of the call based upon the output of the above judgment means. The control means controls the display means based upon the output of the judgment means. The mobile terminal according to the present invention is further provided with judgment means for judging whether a protective cover for protecting the display means is open or not. The control means controls the display means based upon the output of the detection means and the judgment means. The display means displays a dialing screen if a protective cover is opened with an earphone jack inserted. The mobile terminal according to the present invention is also provided with judgment means for judging whether the mobile terminal exists in a receivable area or not if an earphone jack is inserted with a protective cover closed. The display means displays a predetermined warning message if it is judged by the above judgment means that the mobile terminal does not exist in a receivable area. The mobile terminal according to the present invention is also provided with judgment means for judging whether an earphone jack is pulled out during a call or not. The mobile terminal according to the present invention is also provided with ring-off processing means for executing the ring-off processing of the call based upon the output of the above judgment means. The control means controls the display means based upon the output of the above judgment means.
Also, the mobile terminal according to the present invention is provided with LCD for displaying a menu screen, earphone jack insertion detecting means for detecting the insertion of an earphone jack and CPU for switching menu screen to a dialing screen for executing a telephone function based upon the output of earphone jack insertion detecting means. The mobile terminal according to the present invention is also provided with a protective cover opening/closing detecting section for judging whether a protective cover for protecting the LCD is open or not.
A display control method of the mobile terminal according to the present invention is provided with a step for turning on a power source, a step for displaying a menu screen, a step for detecting the insertion of an earphone jack and a step for switching the above menu screen to a dialing screen for executing a telephone function based upon detection in the detection step. The display control method is also provided with a step for judging whether the mobile terminal exists inside a receivable area or not, a step for displaying information showing whether the mobile terminal exists inside a receivable area or not and a step for displaying a predetermined warning message if an earphone jack is inserted when the mobile terminal exists outside the receivable area. The display control method is als
Ferguson Keith
McGinn & Gibb PLLC
NEC Corporation
Tsang Fan
LandOfFree
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