Oki Electric Industry Co., Ltd.

Mitsubishi Electric Corporation

Masao Iwata

Hiroyuki Horii

Tomokazu Komazaki

Katsuhiko Gunji

Toshikazu Yasuoka

Kohichiro Shimizu

Yoshio Okada

Yoshihiro Nakai

Akira Nakano

Kazushige Nogichi

Koichiro Shimizu

Tsuyoshi Miyazawa

The update control device is an update control device that controls update of software for one of electronic devices in a vehicle driven by a replaceable battery, and includes: an update method setting unit for selectively setting an update method of the software to either a first update method by replacement of the battery or a second update method by wireless communication, by using at least one of information indicating a remaining amount of the battery, information indicating a size of data to be used for the update, information indicating an urgency of the update, or information indicating a search result of one or more charging stations in a search target area including a position of the vehicle; and a reservation process executing unit for executing, when the update method is set to the first update method, a reservation process of making a reservation for a replacement battery to a reservation target charging station among the charging stations included in the search result and a storage request process of requesting the reservation target charging station to store the data in the replacement battery.

Update control device and update control method

In a mobile communication device, a power amplifier amplifies the power of a signal to be transmitted. A transmitter filter limits the frequency band of the amplified signal to a predetermined frequency band for transmission. The signal limited in frequency band is transmitted via an antenna. Output power control circuitry controls the output power of the signal to be transmitted and has an output power sensor and an automatic power control circuit. The output power sensor succeeds the transmitter filter in the direction of flow of the signal to be transmitted, and senses the output power of the signal. The automatic power control circuit controls the gain of the power amplifier such that the output power sensed by the output power sensor coincides with a preselected reference value.

Mobile communication device having an output power sensor succeeding a

An LC-type dielectric filter includes a plurality of substrate layers which are arranged in a stack and laminated to form a multi-layer substrate. Strip line resonators are provided on some of the substrate layers. The filter has a plurality of terminals, which are connected to resonators. The terminals are also capacitively or inductively coupled to each other. At least one grounding layer is included in the stack for electrically isolating the resonators. Coupling between the resonators can be obtained by forming a plurality of resonators close to one another on the same substrate layer. Further, a duplexer can be made from filters of this type. The duplexer may include a matching circuit and a power amplifier for RF transmission.

LC-type dielectric filter and duplexer

A stripline resonator is constructed of a dielectric plate having a ground electrode formed on a side surface thereof, an open-ended .lambda./2 long stripline arranged on a top surface of the dielectric plate, an input terminal to which signals are inputted, said input terminal is connected to one end of the open-ended .lambda./2 long stripline, a first reactance element connected either in series or in parallel between the input terminal and the open-ended .lambda./2 long stripline, and a second reactance element connected at one end thereof to an opposite end of the open-ended .lambda./2 long stripline and at an opposite end to a ground electrode.

Stripline resonator

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Tokyo, Japan

Masao Iwata