Sony Corporation

Sony Mobile Communications Japan, Inc.

Sony Mobile Communications Inc.

Sony Group Corporation

Snaptrack Incorporated

Hirotada Taniuchi

Hideaki Shoji

Katsunori Ishimiya

Takaki Kanno

Tatsuya Narahara

Hiroshige Okamoto

Shigeo Kusunoki

Tetsuo Kimura

Kazuhiko Saito

Manabu Onishi

Tatsuhiro Iida

Akihito Kato

Provided is a locking/unlocking device that accurately detects an opening/closing state of an opening/closing device and optimizes timing to lock or unlock. The locking/unlocking device includes a drive unit that drives a lock mechanism of the opening/closing device, a magnetic detection unit that detects a change in a magnetic field based on a change in the relative position between a movable section and a fixed section of the opening/closing device, and a control unit that determines an open/closed state of the opening/closing device on the basis of the change in the magnetic field detected by the magnetic detection unit and activates the drive unit to lock or unlock the lock mechanism on the basis of the open/closed state.

Locking/unlocking device, locking/unlocking method, and locking/unlocking system

A wireless communication module comprising including a first transmission bandpass filter that takes a first transmit frequency band as a passband; a second transmission bandpass filter that takes a second transmit frequency band as a passband; a first reception bandpass filter that takes a first receive frequency band as a passband; a second reception bandpass filter that takes a second receive frequency band as a passband; and a plurality of switches, each switch connected to a single one of the bandpass filters.

RF front end module and mobile wireless device

An electronic device including a first reception band pass filter having a first reception frequency set as a passband; a second reception band pass filter having a second reception frequency set as a passband; a first matching circuit having a first end connected to an antenna terminal; a first switch having a first end connected to a second end of the first matching circuit: a second switch having a first end connected to the second end of the first matching circuit; a second matching circuit connected between a second end of the first switch and the first reception band pass filter; and a third matching circuit connected between a second end of the second switch and the second reception band pass filter, wherein at least one of the first, second, and third matching circuits is a variable matching circuit having a controllable matching constant.

RF front-end module and mobile wireless terminal

A wireless communication apparatus includes a power-supply apparatus configured to supply electric power to a load that is intermittently operated by using a battery as a power supply; and a control unit configured to control the power-supply apparatus, wherein the power-supply apparatus includes a capacitor; a switching unit capable of selectively forming a first path through which charging is performed from the battery to the capacitor and a second path through which the battery is connected in series with the capacitor, and wherein the control unit controls the switching unit so that the first path is formed during a period in which the load is idle and the second path is formed during a period in which the load is not idle, and thereby supplies the voltage of the sum of the battery voltage and the charged voltage of the capacitor in a non-idle period.

Wireless communication apparatus and power-supply apparatus

A power supply system is disclosed, including a first plurality of power supply units configured to supply working voltages from a battery to a second plurality of loads, a large-capacitance capacitor configured to charge electric charges from the battery, a third plurality of switching means for connecting the large-capacitance capacitor to the second plurality of loads selectively, control means for switching the third plurality of switching means corresponding to the load presently driven, and discharge means, in a case where the output voltage of the large-capacitance capacitor is higher than the operating voltage of the second load when the capacitor is switched from a first load to a second load, for discharging the charges stored in the capacitor according to the monitoring result by a voltage monitoring means so that the voltage of the capacitor decreases to the operating voltage.

Power supply system and electronic instrument

Growing community of inventors

Tokyo, Japan

Hirotada Taniuchi