Abstract: A portable communication device including a GPS antenna, a GPS processing circuit for determining a location of the device based on a signal received by the antenna, a location information processing circuit for detecting the location information corresponding to a determined result, a key input device for inputting a telephone number of a communication terminal device for transmitting the location information, a control circuit, and a transmitting circuit. The key input device is provided with a LOST key. The control circuit feeds the location information detected by the location information processing circuit to the transmitting circuit when the LOST key is manipulated. The transmitting circuit transmits the location information to the communication terminal device having the inputted telephone number. This realizes a portable communication device which is adapted to notify others of the accurate present location of the device.

Abstract: The present invention provides a portable telephone comprising an openable/closable casing having a display 13a, a magnetic sensor 18b for detecting whether the casing is opened or closed, and a control circuit 10. When a message is received with the casing closed, the control circuit 10 displays the contents of the received message on the display 13a. When the casing in an opening state is thereafter detected, the control circuit 10 displays on the display 13a a reply-message-preparation screen for preparing a reply message to be sent to a sender of the received message.

Abstract: The present invention provides a foldable portable communication terminal device including a main body case and a lid case openably connected. The main body case has a side portion provided with an up key and a down key. The portable communication terminal device has a secondary battery, power supplying switch, and a control circuit incorporated therein. The control circuit switches the power supply switch to on/off when the up key and the down key are held depressed at the same time for at least the predetermined period of time. This starts or stops power supply from the secondary battery to the device body to switch the power source of the device body to on/off. Accordingly, the foldable portable communication terminal device can be realized which is adapted to turn off the power source of the device body with the main body case and the lid case folded together.

Abstract: A mobile phone set including a mobile phone and a warning apparatus detects an electric field strength of a second electric wave transmitted from the mobile phone and the warning apparatus, and gives a warning sound and the like, which enables users to recognize the fact when the mobile phone is lost or stolen.

Abstract: A position information providing system of the invention, portable telephones A and B are connectable to a service center. The telephone A has a GPS processing circuit for measuring its own position and a control circuit. The circuit prepares position information based on the measurements obtained by the GPS processing circuit, also prepares a list comprising the numbers of a plurality of telephones in response to an input manipulation by the user, and transmits the prepared list data to the center. When an information request signal is supplied from the telephone B to the center, the server transmits the position information as to the telephone A to the telephone B only when the number of the telephone B is not included in the list data. Thus, the system realized is adapted to reliably protect the privacy of the person carrying the telephone A.

Abstract: The present invention provides a portable telephone which comprises a microphone 22 for speech transmission, cameras 3, 30 arranged on a casing, and a control circuit 10. The control circuit 10 varies the sensitivity of the microphone 22 in accordance with a photographing direction of one camera being operated.

Abstract: The present invention is a portable telephone device that is composed of two displays of substantially a same size, and can continuously perform two display processes in parallel by allocating different display processes to each of the displays.

Abstract: The present invention provides a portable telephone comprising an openable/closable casing having a display 13a, a magnetic sensor 18b for detecting whether the casing is opened or closed, and a control circuit 10. When a message is received with the casing closed, the control circuit 10 displays the contents of the received message on the display 13a. When the casing in an opening state is thereafter detected, the control circuit 10 displays on the display 13a a reply-message-preparation screen for preparing a reply message to be sent to a sender of the received message.

Abstract: A portable telephone of the present invention comprises a casing, a LCD 18 and a key input device 20 disposed on a surface of the casing. The casing has a microphone 17 for delivering speech, a speaker 16 for receiving speech, a backlight 19 for lighting a screen of the LCD 18, a key light device 21 for lighting a manipulation surface of the key input device 20, and a control circuit 15 incorporated therein. The control circuit 15 checks whether a speech delivery signal input from the microphone 17 is a voice signal. If the speech delivery signal is a voice signal, display operation of the LCD 18 is set to OFF and both the backlight 19 and the key light device 21 are turned off. If the signal is not a voice signal, display operation of the LCD 18 is set to ON. Consequently, useless power consumption is reduced.

Abstract: The present invention provides a portable telephone which comprises a microphone 22 for speech transmission, cameras 3, 30 arranged on a casing, and a control circuit 10. The control circuit 10 varies the sensitivity of the microphone 22 in accordance with a photographing direction of one camera being operated.

Abstract: A mobile phone set including a mobile phone and a warning apparatus detects an electric field strength of a second electric wave transmitted from the mobile phone and the warning apparatus, and gives a warning sound and the like, which enables users to recognize the fact when the mobile phone is lost or stolen.

Abstract: In the position information providing system of the invention, portable telephones A and B are connectable to a service center. The telephone A has a GPS processing circuit 21 for measuring the position of its own and a control circuit 10. The circuit 10 prepares position information based on the measurements obtained by the circuit 21, also prepares a list comprising the numbers of a plurality of telephones in response to an input manipulation by the user, and transmits the prepared list data to the center. When an information request signal is supplied from the telephone B to the center, the server transmits the position information as to the telephone A to the telephone B only when the number of the telephone B is not included in the list data. Thus, the system realized is adapted to reliably protect the privacy of the person carrying the telephone A.

Abstract: The present invention provides a portable communication device comprises a GPS antenna, a GPS processing circuit for determining a location of the device based on a signal received by the antenna, a location information processing circuit for detecting the location information corresponding to the determined result, a key input device for inputting a telephone number of a communication terminal device for transmitting the location information, a control circuit, and a transmitting circuit. The key input device is provided with a LOST key. The control circuit feeds the location information detected by the location information processing circuit to the transmitting circuit when the LOST key is manipulated. The transmitting circuit transmits the location information to the communication terminal device having the inputted telephone number. This realizes the portable communication device which is adapted to notify the others of the accurate present location of the device.

Abstract: The present invention is a portable telephone device that is composed of two displays of substantially a same size, and can continuously perform two display processes in parallel by allocating different display processes to each of the displays.

Abstract: The present invention provides a foldable portable communication terminal device including a main body case and a lid case openably connected. The main body case has a side portion provided with an up key and a down key. The portable communication terminal device has a secondary battery, power supplying switch, and a control circuit incorporated therein. The control circuit switches the power supply switch to on/off when the up key and the down key are held depressed at the same time for at least the predetermined period of time. This starts or stops power supply from the secondary battery to the device body to switch the power source of the device body to on/off. Accordingly, the foldable portable communication terminal device can be realized which is adapted to turn off the power source of the device body with the main body case and the lid case folded together.

Abstract: A portable telephone of the present invention comprises a casing, a LCD 18 and a key input device 20 disposed on a surface of the casing. The casing has a microphone 17 for delivering speech, a speaker 16 for receiving speech, a backlight 19 for lighting a screen of the LCD 18, a key light device 21 for lighting a manipulation surface of the key input device 20, and a control circuit 15 incorporated therein. The control circuit 15 checks whether a speech delivery signal input from the microphone 17 is a voice signal. If the speech delivery signal is a voice signal, display operation of the LCD 18 is set to OFF and both the backlight 19 and the key light device 21 are turned off. If the signal is not a voice signal, display operation of the LCD 18 is set to ON. Consequently, useless power consumption is reduced.

Abstract: The present invention is a portable telephone device that is composed of two displays of substantially a same size, and can continuously perform two display processes in parallel by allocating different display processes to each of the displays.

Abstract: The present invention is a portable telephone device that is composed of two displays of substantially a same size, and can continuously perform two display processes in parallel by allocating different display processes to each of the displays.