Kyocera Corporation

Sony Corporation

Kenji Waku

Kunihiko Watanabe

Tadashi Koyama

Yohei Kuroda

Ryoji Amemiya

Shin Takahashi

Katsuji Morishita

Nobutaka Yagi

Osamu Ishioka

Yasuhiro Abe

Daisuke Togashi

Takeshi Iwanaga

Masayuki Saito

Mitsuhiro Nishizono

Yasuhiro Katayama

Yoshiaki Hiraoka

Masato Harikae

Shinobu Kato

Ting Lu

Tei Riku

Tadeshi Koyama

There is provided an information processing device comprising a housing, a display screen, a touch panel arranged on the display screen, an icon, which is displayed on the display screen and manipulated through the touch panel, a state detection unit for detecting a state change of the housing, a state determination unit for determining the state change of the housing detected by the state detection unit, and a display control unit for displaying the icon in a desired position on the display screen in response to a determination result of the state determination unit.

Information processing device and program

Provided is an electronic device including a secondary battery, a charging section which charges the secondary battery with power supplied from an external power supply section with a set charging current, a measurement section which measures an amount of charge accumulated in the secondary battery, a time information acquisition section which acquires time information, a storage section which stores charging history information indicating a time period in which a user performs charging, and a control section which has a chargeable time estimation section that estimates chargeable time based on the charging history information and the time information, and a charging current setting section that calculates a restricted charging current which enables the secondary battery to be charged up to a charging capacity within the chargeable time, based on the amount of charge acquired from the measurement section, and sets the restricted charging current in the charging section.

Electronic device, method of charging electronic device, program, charging control apparatus, and charging control method

A portable wireless device which effectively uses a space in a case while maintaining communication qualities by reducing antenna gain deterioration even when a plurality of antennas of different frequency bands are arranged adjacent to each other. The portable wireless device is provided with patterns for adding a band disturbing element, which is composed of beads and a parallel resonance circuit, to a part where one side of an antenna pattern of a magnetic field antenna is closed to between the main antenna and the magnetic field antenna is more easily generated. The band disturbing element may be composed of ferrite core or the like.

System for reducing antenna gain deterioration

Provided is a portable wireless device having a plurality of antennas of different frequency bands. By positively using one antenna for improving gains of other antennas, the one antenna can be effectively used and the gains of other antennas can be improved. Patterns (A, A, A, B, BB) for adding a band disturbing element () (high frequency blocking means), which is composed of beads and a parallel resonance circuit, are arranged at a prescribed position of a magnetic field antenna (). The band disturbing element () may be composed of ferrite core or the like.

Portable wireless device

A portable electronic device and a magnetic field antenna circuit are provided for making it possible to keep an antenna resonance frequency in a fixed range even if temperature changes. A mobile telephone device () is provided with a second communication unit driven by a chargeable battery () to execute a predetermined function and an RFID unit () accompanied with magnetic communication. The RFID unit () includes a magnetic antenna unit (), which can transmit or receive a wireless signal by a magnetic field, and a capacitor (), one terminal of which is connected with the magnetic antenna unit () to generate a predetermined resonance frequency. The capacitor () is characterized in having a temperature-reactance characteristic reverse to an amount of an inductance value that fluctuates as the magnetic antenna unit () changes in accordance with temperatures.

Portable electronic device and magnetic antenna circuit

A mobile wireless device enables effective use of space in a case while reducing degradation of antenna gain and maintaining communication quality even if a plurality of antennas having different frequency bands are arranged close to one another. A magnetic antenna has a first switch unit, a second switch unit, and a concentrated constant circuit which are added to a wiring pattern at the side near to a main antenna, so that a first path and a second path can be selected. Under a predetermined condition, a CPU controls the first switch and the second switch to electrically connect terminal (A) to terminal (B) and electrically connect terminal (A) to terminal (B), thereby forming the first path; and electrically connect terminal (A) to terminal (C) and electrically connect terminal (A) to terminal (C), thereby forming the second path connected via the concentrated constant circuit.

It is an objective of the present invention to provide a mobile communication device and a reception suppressing method which can preferably perform communication even if a plurality of antennas is provided and a frequency bandwidth of a transmission signal or a reception signal of each antenna is in a close range with each other.

Mobile communication device and reception suppressing method

The present invention has an object of attaining further miniaturization and reducing the thickness of a portable wireless device with a built-in antenna. The cellular telephone deviceaccording to the one embodiment of the present invention includes a case bodyhaving a first case portionwhich is arranged so as to cover the electronic components, along with being electrically conductive to the reference potential pattern, and a nonconductive second case portionarranged to be continuous to the first case portionalong with being arranged in the outer periphery of the circuit substrate. In the portion that is arranged to be layered in the second case portionin a flexible wiring substrate, an antenna elementis arranged.

A wireless communication device having a configurable antenna, includes: a first antenna having a first resonant frequency; a first frequency modification unit for modifying the first resonant frequency of the antenna; a function operation unit activating a plurality of functions; and a control unit controlling the first frequency modification unit to modify the first resonant frequency in accordance with a function activated by the function operation unit.

Wireless communication device with configurable antenna

A portable wireless device includes a first communication unit having a loop antenna that communicates with external devices using a first usable frequency band, and an RFID chip that performs predetermined processing with respect to information communicated by the loop antenna. A second communication unit includes a main antenna that communicates by a second usable frequency band that is higher than the first usable frequency band, and a communication processing unit that performs predetermined processing with respect to information communicated by the main antenna. A reactance component of the loop antenna is adjusted such that a high-order secondary resonance point of the first usable frequency band does not overlap the second usable frequency band.

Growing community of inventors

Kanagawa, Japan

Kenji Waku