Panasonic Corporation

Sanken Electric Co., Ltd.

Honda Motor Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Takayuki Konishi

Masaru Nakamura

Takayuki Takahashi

Hiroaki Nakamura

Kenya Yasutomi

Ryota Minami

Satoshi Nakamoto

Chie Isshi

Keita Mikura

Kenichi Mochizuki

Kei Fukuyama

Toshikazu Tatewaki

Jung Soo Lee

Mafumi Yasuhara

Atsuhiro Koyama

A portable terminal includes a main body having a rectangular shape in a plan view and having a display on a surface, a battery housed in the main body, and a circuit board. As viewed from the back, the main body is divided into areas consisting of a matrix of 25 divisions. The battery is housed in a first integrated area, and the center of the battery is located in the 13th area as viewed from the back. The circuit board is disposed along the perimeter of the battery as viewed through the back, and an option component is removably attached to an option area.

Portable terminal

A pulsar ring which is a detection target ring includes an annular base wall having pickup holes and a plurality of ring attachment portions protruding from an outer peripheral edge portion of the base wall and being fixed, together with a disc attachment portion of a brake disc, to a wheel of a vehicle wheel assembly. Regions corresponding to positions between adjacent ring attachment portions in an inner peripheral edge portion of the base wall are bent to form reinforcing ribs.

Wheel speed detecting device, and ring to be detected

The present invention includes: a zero crossing detection circuit which outputs a zero crossing signal when an inductor's regeneration period is completed; a light load detection circuit which compares an amplified error signal from an error amplifier and a threshold and outputs a light load signal; a timer circuit which outputs an intermittent operation enabling signal after a predetermined period based on the light load signal and zero crossing signal and outputs an intermittent operation disabling signal when the zero crossing signal is not outputted for a predetermined period; and an ON-OFF control controller which turns off a switching element when the amplified error signal falls below the threshold while the timer circuit is outputting the intermittent operation enabling signal, and turns on the switching element when the amplified error signal at least reaches or exceeds the threshold while the timer circuit is outputting the intermittent operation enabling signal.

DC/DC converter

A switching power-supply device includes a main switching element connected between a power-supply and an output terminal; a driving circuit that drives the main switching element; a capacitor that feeds power to the driving circuit; a charging circuit that charges the capacitor when the main switching element is switched from an on-state to an off-state; a switching control circuit that performs switching control of alternately switching the main switching element to the on-state and the off-state via the driving circuit; a voltage detection circuit that detects a voltage between both ends of the capacitor, and a driving control circuit that switches a state of prohibiting driving of the main switching element and a state of permitting driving of the main switching element, based on a difference between an output voltage output from the output terminal and a preset reference voltage and the voltage between both ends of the capacitor.

Switching power-supply device

A light guiding device used for a reader/writer device for a noncontact communication medium is provided with a light guide plate having a transparent main body part which can transmit light inputted from an LED and a protruding part protruding from a part of an end surface of the transparent main body part. A diffusely reflecting part is provided on a lower surface side of the transparent main body part, and a first light emitting part is provided on an upper surface side of the transparent main body part. Reflecting parts are provided on an upper surface side and a lower surface side of the protruding part, and second light emitting part is provided at a leading end. of the protruding part. When the first light emitting part is covered by the noncontact communication medium, the second light emitting part can check a light emitting state.

Light guiding device, reader/writer device for noncontact communication medium, and electronic apparatus

A light guiding device can be used for a reader/writer device () for a noncontact communication medium. The light guiding device includes a light guide plate () which includes: a transparent main body part () which can transmit light inputted from an LED (); and a protruding part () which is provided so as to protrude from a part of an end surface of the transparent main body part (). A diffusely reflecting part () is provided on a lower surface side of the transparent main body part (), and a first light emitting part () is provided on an upper surface side of the transparent main body part (). Reflecting parts () are provided on an upper surface side and a lower surface side of the protruding part (), and a second light emitting part () is provided at a leading end of the protruding part (). In the case where the first light emitting part () is covered by the noncontact communication medium, the second light emitting part () makes it possible to check a light emitting state. Accordingly, the light guiding device is provided, in which the light emitting state of the light emitting part can be easily checked.

The lens moving mechanism may be a cam structure. The cam structure is set so that the rotation axis of the lens is held at the center of the dome in a predetermined center hold angle range corresponding to the direction of an elevation angle, and that the rotation axis of the lens is moved from the center of the dome in the zenith direction at angles lower than the center hold angle range. Good images can be obtained even when shooting in the direction of a depression angle.

Growing community of inventors

Tokyo, Japan

Takayuki Konishi