Abstract: In a mobile terminal provided with an encoded data recording function, there is assumed a condition in which a picture frame transmitted from the terminal of a communication partner is reproduced by means of decoding processing and is displayed on a LCD (34) during wireless TV phone communication. In this condition, when a user carries out a picture recording start operation, display picture data reproduced by means of decoding processing in the multimedia processing section (24) to be displayed on the LCD (34) are recorded in a main recording section (26).

Abstract: A radio section 1 and a control section 2 allow communications using two radio channels simultaneously, such as TV phone communication and message communication. An LCD 33 displays information concerning each communication simultaneously or selectively when simultaneous communications are being made using two radio channels. Even if communications are made using two radio channels simultaneously, excellent operability is provided and a radio communication terminal can be realized which is low in cost and power dissipation.

Abstract: In a mobile terminal provided with an encoded data recording function, there is assumed a condition in which a picture frame transmitted from the terminal of a communication partner is reproduced by means of decoding processing and is displayed on a LCD (34) during wireless TV phone communication. In this condition, when a user carries out a picture recording start operation, display picture data reproduced by means of decoding processing in the multimedia processing section (24) to be displayed on the LCD (34) are recorded in a main recording section (26).

Abstract: In a mobile terminal provided with an encoded data recording function, there is assumed a condition in which a picture frame transmitted from the terminal of a communication partner is reproduced by means of decoding processing and is displayed on a LCD (34) during wireless TV phone communication. In this condition, when a user carries out a picture recording start operation, display picture data reproduced by means of decoding processing in the multimedia processing section (24) to be displayed on the LCD (34) are recorded in a main recording section (26).

Abstract: A radio section 1 and a control section 2 allow communications using two radio channels simultaneously, such as TV phone communication and message communication. An LCD 33 displays information concerning each communication simultaneously or selectively when simultaneous communications are being made using two radio channels. Even if communications are made using two radio channels simultaneously, excellent operability is provided and a radio communication terminal can be realized which is low in cost and power dissipation.

Abstract: A radio section 1 and a control section 2 allow communications using two radio channels simultaneously, such as TV phone communication and message communication. An LCD 33 displays information concerning each communication simultaneously or selectively when simultaneous communications are being made using two radio channels. Even if communications are made using two radio channels simultaneously, excellent operability is provided and a radio communication terminal can be realized which is low in cost and power dissipation.

Abstract: In this invention, wireless video telephone communication between mobile telephones MS1 and MS2 using the MPEG-2 standard is performed when the reception field strength falls below a threshold value of H continuously for a specific period of T3 or longer in the course of receiving the data at one mobile telephone MS2, the telephone MS2 monitors the restoration of the reception field strength. After detecting the restoration, mobile telephone MS2 transmits a request for the transmission of an I frame to mobile telephone MS1. Upon receipt of the request, mobile telephone MS1 creates an I frame in place of a P frame and transmits the I frame.

Abstract: In a mobile radio communication terminal includes a feeding controller 7 with a feeding control table. In the feeding control table 7 is stored the on/off state of the power to each circuit in correspondence with all operation modes for the apparatus. In case an operation mode is reported from the main control circuit 11 prior to the operation, output Vcc of the power supply circuit 6 is fed to the minimum circuits necessary for execution of the operation mode according to the operation mode and information stored in the feeding control table 7, and power to the remaining circuits is shut off or reduced.

Abstract: The communication terminal comprises a first radio unit for making radio communication with a base station over a first radio channel having a first radio frequency band, and a second radio unit for making radio communication with another communication terminal by using a second radio channel having a second radio frequency band. A first channel establishing section establishes the first radio channel to the base station through the first radio unit. A second channel establishing section establishes the second radio channel to the another communication terminal through the second radio unit. A control section connects the base station to the another communication terminal over the first and second radio channels.

Abstract: According to the present invention, a serial control signal interface and a serial data interface are provided in addition to a USB interface having a USB device controller, and a switching circuit for selectively connecting these interface to a system connector is provided on a mobile communication terminal device. Then, when an external device is connected to the system connector, it is determined whether or not the external device has an external interface having a USB host function on the basis of the interface identification voltage supplied from the external device, so that the switching circuit is changed over on the basis of the determination result to select an appropriate interface.

Abstract: In this invention, wireless video telephone communication between mobile telephones MS1 and MS2 using the MPEG-2 standard is performed when the reception field strength falls below a threshold value of H continuously for a specific period of T3 or longer in the course of receiving the data at one mobile telephone MS2, the telephone MS2 monitors the restoration of the reception field strength. After detecting the restoration, mobile telephone MS2 transmits a request for the transmission of an I frame to mobile telephone MS1. Upon receipt of the request, mobile telephone MSI creates an I frame in place of a P frame and transmits, the I frame.

Abstract: An image communication terminal having a reception section for receiving a paging signal and image data based on the paging signal, a storage section for storing data, and a control section for controlling to store the image data based on the paging signal in the storage section when a predetermined mode is set.

Abstract: In a mobile terminal provided with an encoded data recording function, there is assumed a condition in which a picture frame transmitted from the terminal of a communication partner is reproduced by means of decoding processing and is displayed on a LCD (34) during wireless TV phone communication. In this condition, when a user carries out a picture recording start operation, display picture data reproduced by means of decoding processing in the multimedia processing section (24) to be displayed on the LCD (34) are recorded in a main recording section (26).

Abstract: A radio telephone apparatus which controls the number of display colors of its display according to the current operation mode and/or the classification of data to be processed so that the electricity consumed by the display can be reduced with the display performance maintained.

Abstract: According to the present invention, a serial control signal interface and a serial data interface are provided in addition to a USB interface having a USB device controller, and a switching circuit for selectively connecting these interface to a system connector is provided on a mobile communication terminal device. Then, when an external device is connected to the system connector, it is determined whether or not the external device has an external interface having a USB host function on the basis of the interface identification voltage supplied from the external device, so that the switching circuit is changed over on the basis of the determination result to select an appropriate interface.

Abstract: A method for charging a radio telephone system including a radio telephone set having a chargeable battery built therein, wherein a power consumption of the radio telephone set is calculated on the basis of a data relating to the power consumption of the radio telephone set to perform a charging operation based on the power consumption. Also, a power consumption limit is set on the basis of a power consumption indicative of a use frequency so that a normal charging operation is carried out when the power consumption of the radio telephone set is equal to or smaller than the power consumption limit and so that a quick charging operation is carried out when the power consumption of the radio telephone set is larger than the power consumption limit.

Abstract: A telephone set includes a volatile memory (14) for storing data such as telephone numbers or messages and a battery (17) for maintaining the data stored in the volatile memory (14). In order to prevent the data stored in the volatile memory (14) from being lost when the battery (17) is consumed, a detection circuit (18) detects the consumption of the battery (17) and supplies the voltage fed through a line from the telephone office side to the volatile memory (14) through a switch (19) on the basis of that detection. It is possible to transfer the data in the volatile memory to the non-volatile memory directly before the battery is consumed.