Abstract: To prevent temperature rise caused by increase in communication speed and increase in output power and to provide a mobile terminal device which has a small size and is of low cost, a wireless communication device comprises: a detection means for detecting the temperature inside the device; and a control means for, when the temperature detected by the detection means becomes a preset first threshold value or more, restricting the maximum value of the transmission speed that a self-device can achieve.

Abstract: To prevent temperature rise caused by increase in communication speed and increase in output power and to provide a mobile terminal device which has a small size and is of low cost, a wireless communication device comprises: a detection means for detecting the temperature inside the device; and a control means for, when the temperature detected by the detection means becomes a preset first threshold value or more, restricting the maximum value of the transmission speed that a self-device can achieve.

Abstract: An aspect of the invention provides a mobile station which can restrict an upper limit of a transmission rate according to a processing capacity in processing packet data received from a base station. The mobile station includes packet data retaining means 16 for tentatively retaining packet data received from a base station 100; reject ratio computation means 16 for computing a ratio of rejected packet data in the packet data retained by the packet data retaining means 16; transmission rate setting means 30 for setting an upper limit of a downstream transmission rate based on the ratio computed by the reject ratio computation means 16; and transmission rate notification means 25 for notifying the base station 100 of the upper limit of the transmission rate set by the transmission rate setting means 30.

Abstract: An aspect of the invention provides a mobile station which can restrict an upper limit of a transmission rate according to a processing capacity in processing packet data received from a base station. The mobile station includes packet data retaining means 16 for tentatively retaining packet data received from a base station 100; reject ratio computation means 16 for computing a ratio of rejected packet data in the packet data retained by the packet data retaining means 16; transmission rate setting means 30 for setting an upper limit of a downstream transmission rate based on the ratio computed by the reject ratio computation means 16; and transmission rate notification means 25 for notifying the base station 100 of the upper limit of the transmission rate set by the transmission rate setting means 30.

Abstract: A wireless terminal device having a simple configuration with at least two antennas, a single receiver, and a single reception level measuring section, which is capable of performing transmission and reception antenna diversity without a break of communication. The wireless terminal device, which communicates with a base station, comprises a reception system and a transmission system. The reception system includes a receiver, despreading section, a PN generator, and a BCH reception level measuring section. The BCH reception level measuring section measures a reception level of the broadcast channel. The transmission system includes a transmitter, a spreading section, and a PN generator. Either of two antennas is selected by a controller and an antenna switch.

Abstract: A spread spectrum communication system and a method can provide resistance against selective fading and can prevent lowering of circuit use ratio with lowering reception bit error ratio. The spread spectrum communication system has a control unit for controlling a transmission band width and a transmission power of a counterpart equipment depending upon a communication quality.

Abstract: In a receiver used in the spread spectrum communication system, power of a base band signal which is obtained by A/D converting an output of a quadrature demodulator is detected by a base band signal power-detecting unit, where the quadrature demodulator demodulates an IF signal outputted from an AGC amplifier. The base band signal is despeaded by a despreading unit, and converted into a symbol rate signal, power of which is detected by a symbol rate signal power-detecting unit. An error rate of a desired wave is detected by an error rate-detecting unit on the basis of the symbol rate signal. Output signals of the base band signal power-detecting unit, the symbol rate signal power-detecting unit, and the error rate-detecting unit are supplied to an AGC amplifier-controlling unit which controls a gain of the AGC amplifier.

Abstract: A wireless terminal device having a simple configuration with at least two antennas, a single receiver, and a single reception level measuring section, which is capable of performing transmission and reception antenna diversity without a break of communication. The wireless terminal device, which communicates with a base station, comprises a reception system and a transmission system. The reception system includes a receiver, despreading section, a PN generator, and a BCH reception level measuring section. The BCH reception level measuring section measures a reception level of the broadcast channel. The transmission system includes a transmitter, a spreading section, and a PN generator. Either of two antennas is selected by a controller and an antenna switch.

Abstract: A surface mount package is composed of a package body and first and second terminals. The package body has first and second surfaces intersecting with each other. Also, the package body has an installing portion for an element to be installed. The first terminal is connected to the first surface, and the second terminal is connected to the second surface.

Abstract: A mobile telephone terminal simplifies a call connecting process, reduces the load in switching lines, requesting a communications carrier to set an available service, etc. without a monthly fee, etc. for each service and without increasing a dedicated lines when a service is offered.

Abstract: In a receiver used in the spread spectrum communication system, power of a base band signal which is obtained by A/D converting an output of a quadrature demodulator is detected by a base band signal power-detecting unit, where the quadrature demodulator demodulates an IF signal outputted from an AGC amplifier. The base band signal is despeaded by a despreading unit, and converted into a symbol rate signal, power of which is detected by a symbol rate signal power-detecting unit. An error rate of a desired wave is detected by an error rate-detecting unit on the basis of the symbol rate signal. Output signals of the base band signal power-detecting unit, the symbol rate signal power-detecting unit, and the error rate-detecting unit are supplied to an AGC amplifier-controlling unit which controls a gain of the AGC amplifier.

Abstract: A spread spectrum communication system and a method can provide resistance against selective fading and can prevent lowering of circuit use ratio with lowering reception bit error ratio. The spread spectrum communication system has control means for controlling a transmission band width and a transmission power of a counterpart equipment depending upon a communication quality.

Abstract: A surface mount package is composed of a package body and first and second terminals. The package body has first and second surfaces intersecting with each other. Also, the package body has an installing portion for an element to be installed. The first terminal is connected to the first surface, and the second terminal is connected to the second surface.