Nec Corporation

Nec Microwave Tube, Ltd.

Nec Casio Mobile Communications, Ltd.

Ntt Docomo, Inc.

Tatsuya Uchikawa

Yukio Murata

Yasuharu Onishi

Motoyoshi Komoda

Jun Kuroda

Shigeo Satou

Yuichiro Kishinami

Nobuhiro Kawashima

Kazuhisa Nishida

Daisuke Suzuki

Hiroshi Haga

Yoshiaki Yamada

Michio Nagai

Naoyasu Ikeda

Satoshi Hosokawa

Tomohiko Otose

Mitsutaka Shiraishi

Takao Ito

Ryuji Matsuo

Hiroyuki Kiuchi

Midori Tanaka

Yoko Arimitsu

Takao c/o Nec Saitama Ltd Ito

Mitsutaka c/o Nec Saitama Ltd Shiraishi

Ryuji c/o Nec Saitama Ltd Matsuo

An electronic apparatus () includes a first detachable speaker unit () including a first speaker having a relatively high directivity, and a second detachable speaker unit () including a second speaker having a relatively low directivity. The electronic apparatus () further includes a body unit (an electronic apparatus body ()) provided with a slot () in which any one of the first detachable speaker unit () and the second detachable speaker unit () is detachably installed therein in an alternative way, and a control unit that is provided in the body unit and controls the first and second speakers.

Electronic apparatus with detachable speakers, a body unit and a control unit

An oscillation device (electro-acoustic transducer ()) includes an oscillation element () that has a vibrating member () and a piezoelectric element () that is attached to one surface of the vibrating member (). The oscillation device includes a sheet-shaped waterproof member () that is constituted by a waterproof material. The oscillation device includes a frame-shaped supporting member () that holds an outer peripheral portion of the vibrating member () and an outer peripheral portion of the waterproof member () so that the waterproof member () and the oscillation element () face each other. The oscillation device includes a connection member () that partially connects mutual opposed surfaces of the oscillation element () and the waterproof member ().

Oscillation device and electronic apparatus

In an electro-acoustic transducerwhich is an oscillator device, center positions of principal surfaces of piezoelectric elementsthat are positioned on both surfaces of an elastic memberare different from each other. As such, since the two piezoelectric elementsare disposed asymmetrically on the upper and lower sides in the electro-acoustic transducer, it is possible to prevent vibrations of reversed phases at the time of divided vibration in which the reversed phases overlap with each other. In other words, since it is possible to prevent the generation of sound waves due to the vibration of local reversed phases, the sound pressure level can be improved.

Oscillator device and electronic apparatus

Provided is an oscillator () including a piezoelectric body () that has a plurality of protrusions () on one surface thereof, a plurality of electrodes () that are respectively provided on the plurality of protrusions () so as to be separated from each other, and a plurality of electrodes () that are provided on the other surface opposite to the one surface of the piezoelectric body () so that each of the electrodes faces only one electrode (). Thus, it is possible to prevent variation in acoustic characteristics from occurring. Therefore, the oscillator capable of improving the acoustic characteristics of an electronic device is provided.

Oscillator and electronic device

An oscillator includes a piezoelectric vibrator (), a vibrating member () which is larger than the piezoelectric vibrator () when seen in a plan view and restrains one surface of the piezoelectric vibrator (), a vibrating member () which is larger than the piezoelectric vibrator () when seen in a plan view and restrains the other surface of the piezoelectric vibrator (), an elastic member () which supports an edge of the surface of the vibrating member (), which restrains the piezoelectric vibrator (), and supports an edge of the surface of the vibrating member (), which restrains the piezoelectric vibrator (), and a supporting member () which is located around the elastic member () and supports the elastic member ().

Oscillator

Provided is an oscillator including a piezoelectric vibrator (), a vibration member () that constrains the piezoelectric vibrator () on one surface thereof, an elastic member () that is provided on one surface of the vibration member () or the other surface opposite to one surface and provided so as to be located between edges of the piezoelectric vibrator () and the vibration member () when seen in a plan view, a fixing member () that is provided on one surface or the other surface of the vibration member () and provided so as to be located between the piezoelectric vibrator () and the elastic member () when seen in a plan view, and a supporting member () that supports the vibration member () through the elastic member () and the fixing member ().

In an oscillator (), a plurality of piezoelectric vibrators (to) supported by vibrator support mechanisms () individually output highly directional sound waves. The plurality of piezoelectric vibrators (to) is formed by dividing a laminated body of an elastic member and a piezoelectric substance by the vibrator support mechanisms (). Since it is not necessary to arrange the plurality of piezoelectric vibrators in a matrix, the entirety of a device can be small-sized. A sound deflection unit that deflects a sound wave which is output by at least one of the piezoelectric vibrators may be further included.

An oscillation device () includes a piezoelectric element (), a vibrating member () which binds one surface of the piezoelectric element () and is formed of a metal material, a resin member () which holds an outer circumferential portion of the vibrating member (), a piezoelectric element (), a vibrating member () which binds one surface of the piezoelectric element (), is overlapped with the vibrating member () and the resin member () when seen in a plan view, and is formed of a metal material, and a support member () which supports the resin member () and the vibrating member (), wherein at least one opening (), which connects a space () positioned between the vibrating member () and the resin member (), and the vibrating member () to the outside of the space (), is provided in at least one of the vibrating member (), the resin member (), and the vibrating member ().

Luminance levels of a backlightcorresponding to gradations of a display image are registered as reference luminance values to a table, signal levels of a drive signal to an LED drivercorresponding to reference luminance values are registered as luminance setting values to a table, and values to correct a drive level of a liquid-crystal panel corresponding to gradations of the display image are registered as gamma correction values to a table. According to the gradation of an image to be displayed, a signal level of the drive signal corresponding to the reference luminance value attained from the tableis obtained from the table, to thereby drive the LED driver; and an LCD driveris driven by a value obtained through correction by the gamma correction value obtained from the table, to thereby display an image.

Mobile phone terminal, image display control method, program thereof and program recording medium

A light-detecting element, an analog-to-digital converter circuit, and a parallel-serial converter circuit are mounted on a substrate, using a thin film transistor, of an active matrix-type display device, and when a circuit is selected by an external chip-select signal, the luminance is adjusted by transmitting a signal of the light-detecting element, converted into digital data, to a luminance control circuit in sync with a clock signal.

Display device and electronic apparatus using the same

Provided is an inputting device that is disposed in an opening of a cabinet surface. The device includes an elastic sheet having an outside surface disposed on an inside surface of the cabinet including the opening and across the opening. A sliding key is fixed on the outside surface of the elastic sheet with at least a portion in the opening of said cabinet surface. The device also includes sensors to detect movement, in a horizontal direction that is substantially parallel to said cabinet surface, of the sliding key. The device also includes guides being possible to be recognized optically that are disposed on designated positions on the elastic sheet, and the sensors detect the moved direction and the amount of the horizontal movement of the sliding key by reading the movements of said guides optically.

Inputting device and mobile terminal

A high pressure discharge lamp includes a quartz glass bulb, a conductive element which is sealed at a sealing portion of the bulb, and a pair of electrodes. Each electrode is disposed in the quartz glass bulb so as to be opposite the other and connected to the conductive element. A part of each electrode is sealed with the quartz glass bulb at the sealing portion so as to generate a contacting portion formed by the part of each electrode and the bulb. The maximum length, L, of the contacting portion is defined as: L(mm)&#x2266;200/(P&#xd7;D); and the minimum length, L, of the contacting portion is defined as: L(mm)&#x2267;0.8/(D&#xd7;&#x3c0;) or L(mm)&#x2267;0.7 whichever is longer, where D is the diameter (mm) of the electrode and P is the power (W) supplied to the electrode.

High pressure discharge lamp and method for sealing a bulb thereof

An inputting device, an electronic instrument using this inputting device, and an inputting method thereof, in which displacement of an operating section in the direction slanting for the X or the Y direction is detected and the movement of a moving object such as a cursor on a display can be controlled easily and precisely, are provided. The operating section is displaced about in the horizontal direction and the vertical direction for a plane being almost parallel to the surface of a cabinet. In case that orthogonal coordinates having the X axis and the Y axis are set on the plane being almost parallel to the surface of the cabinet, horizontal direction sensors detect the displacement of the operating section in the direction slanting for the X or Y direction, in addition to in the X or Y direction. The cursor moves on the display based on the displacement of the operating section about in the horizontal direction. Information being selected by the cursor on the display is decided by the displacement of the operating section about in the vertical direction.

Inputting device and electronic instrument using this inputting device and inputting method thereof

A high pressure discharge lamp includes a quartz glass bulb, a conductive element which is sealed at a sealing portion of the bulb, and a pair of electrodes. Each electrode is disposed in the quartz glass bulb so as to be opposite the other and connected to the conductive element. A part of each electrode is sealed with the quartz glass bulb at the sealing portion so as to generate a contacting portion formed by the part of each electrode and the bulb. The maximum length, L , of the contacting portion is defined as: L ((mm))&lE;/200/(P&times;D); and the minimum length, L , of the contacting portion is defined as: L ((mm))&gE;0.8/(D &times;&pgr;) or L ((mm))&gE;0.7 whichever is longer, where D is the diameter ((mm)) of the electrode and P is the power (W) supplied to the electrode.

A high pressure discharge lamp includes a quartz glass bulb, a conductive element which is sealed at a sealing portion of the bulb, and a pair of electrodes. Each electrode is disposed in the quartz glass bulb so as to be opposite the other and connected to the conductive element. A part of each electrode is sealed with the quartz glass bulb at the sealing portion so as to generate a contacting portion formed by the part of each electrode and the bulb. The maximum length, L , of the contacting portion is defined as: L (mm)&lE;200/(P&times;D); and the minimum length, L , of the contacting portion is defined as: L (mm)&gE;0.8/(D &times;&pgr;) or L (mm)&gE;0.7 whichever is longer, where D is the diameter (mm) of the electrode and P is the power (W) supplied to the electrode.

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Tokyo, Japan

Tatsuya Uchikawa