Oki Electric Industry Co., Ltd.

Kabushiki Kaisha Toshiba

Sony Corporation

Sony Group Corporation

Meiji Seika Kaisha, Ltd.

Takuji Yoshida

Kenichi Watanabe

Hiroaki Tanaka

Yoshinori Tanaka

Akio Machida

Shunichi Hashimoto

Takeshi Matsui

Katsuyuki Akutsu

Nobuhiro Suzuki

Osamu Akimoto

Mieko Kuwahara

Akira Kobayashi

Keiichi Ajito

Takashi Oku

Tomoaki Miura

Ken-ichi Kurihara

Hisahide Hattori

Takayuki Uchida

Takeshi Furuuchi

Toshiya Takabayashi

To provide an optical member that enables a light guiding plate to be firmly fixed with certainty to a rim portion using an adhesive. An optical member of the present disclosure that guides light that enters from an image forming apparatus such that the light exits the optical member to be headed for an observer, includes a light guiding platethat is formed of a resin plate', a first deflection mechanism, and a second deflection mechanism. Light that enters the light guiding platefrom the image forming apparatus is deflected by the first deflection mechanism, is totally reflected within the light guiding plateto propagate through the light guiding plate, is then deflected by the second deflection mechanism, and exits the light guiding plateto be headed for the observer. The light guiding plateincludes a protrusionthat extends from a portion of a lateral surface of the light guiding plate. Further, the light guiding plateis fixed to an interior lateral faceA of a rim portionusing an adhesivein a state in which a tip of the protrusionis in contact with the interior lateral faceA of the rim portion

Display apparatus, optical member, method for manufacturing optical member, and stamping apparatus

To provide a display device in which the brightness of the image viewed by the observer is bright, and the brightness of the image is as uniform as possible. The display device according to the present invention includes a frameand an image display device, the image display deviceincludes an image forming apparatusand an optical device, the optical deviceincludes a light guide plate, a first deflection unitconfigured with a first hologram diffraction gratingand a second hologram diffraction grating, and a second deflection unitconfigured with a third hologram diffraction grating, and slant angles and pitches of the first hologram diffraction grating, the second hologram diffraction grating, and the third hologram diffraction gratingsatisfy a predetermined relation.

Optical device and display device

A display device is provided with (A) a frame that is worn on a head of a viewer, and (B) an image display devicemounted to the frame. The image display device is provided with (B-1) an image forming device, and (B-2) an optical devicethat forms a virtual image on the basis of light emitted from the image forming device. The light from the image forming deviceenters a pupilof the viewerthrough the optical device. The optical deviceis provided at least with a first glass plate, a second glass platethat faces the first glass plate, and a shock absorbing layersandwiched between the first glass plateand the second glass plate

Optical device and method for producing the same, and display device

A hologram recording film manufacturing method includes the steps of obtaining a laminated structure by alternately laminating M (where M&#x2267;2) photosensitive material precursor layers including a photosensitive material and at least one (M&#x2212;1) resin layer on one another, obtaining M photosensitive material layers, where at least two interference fringes with a desired pitch and a desired slant angle are formed on each of the M photosensitive material layers, from the M photosensitive material precursor layers by irradiating the laminated structure with a reference laser light beam and an object laser light beam, and making the slant angles of the M photosensitive material layers different from each other while retaining the pitch value, which is defined on a face of the photosensitive material layer, by irradiating the laminated structure with an energy ray from the laminated structure's one face side, and heating the laminated structure.

Hologram recording film and method of manufacturing same, and image display apparatus

An imaging apparatus includes: a half-silvered mirror that divides incident light from a subject into light fluxes traveling along two optical paths; a first imaging device that receives one of the incident light fluxes divided by the half-silvered mirror; a second imaging device that receives the other one of the incident light fluxes divided by the half-silvered mirror; a first subject luminance information calculator that calculates first subject luminance information based on an output from the first imaging device; a second subject luminance information calculator that calculates second subject luminance information based on an output from the second imaging device; and a subject luminance information comparator that compares the first subject luminance information with the second subject luminance information.

Imaging apparatus, imaging control method, and program

An electrically erasable programmable read-only memory receives a single supply voltage and a ground voltage, and generates a first voltage higher than both the supply voltage and the ground voltage, and a second voltage lower than both the supply voltage and the ground voltage. Each memory cell in the memory has a nonvolatile storage transistor with a floating gate. To erase the memory cell, the first voltage is applied on a first side of the floating gate and th second voltage is on a second, opposite side of the floating gate. To program the memory cell, the second voltage is applied on the first side of the floating gate, and the first voltage is applied on the second side of the floating gate.

EEPROM writing and reading method

An electrically erasable programmable read-only memory receives a single supply voltage and generates a first voltage higher than both the supply voltage and the ground voltage, a second voltage lower than both the supply voltage and the ground voltage. Each memory cell in the memory has a nonvolatile storage transistor with a floating gate. To erase the memory cell, the first voltage is applied on a first side of the floating gate and the second voltage is on a second, opposite side of the floating gate. To program the memory cell, the second voltage is applied on the first side of the floating gate, and the first voltage is applied on the second side of the floating gate.

EEPROM writing method

An electrically erasable programmable read-only memory cell array has a plurality of memory cells supplied with a supply voltage and a ground voltage. Each memory cell has a storage transistor with a floating gate. For each of selected memory cells, a first voltage higher than both the supply voltage and the ground voltage is applied to the control gate of the storage transistor and a second voltage lower than both the supply voltage and the ground voltage is applied to one of the source/drain electrodes of the storage transistor to thereby erase data in all of the selected memory cells.

EEPROM erasing method

3-modified leucomycin derivatives

A method for erasing data of a nonvolatile memory includes adjusting a threshold voltage of a memory cell transistor to a first threshold voltage; adjusting the threshold voltage of the memory cell transistor to a second threshold voltage, the second threshold voltage being lower than the first threshold voltage; adjusting the threshold voltage of the memory cell transistor to a third threshold voltage, the third threshold voltage being higher than the second threshold voltage and being lower than the first threshold voltage; and adjusting the threshold voltage of the memory cell transistor to a fourth threshold voltage, the fourth threshold voltage being lower than the second threshold voltage.

Method of erasing data stored in a nonvolatile memory

An electrically erasable programmable read-only memory receives a single supply voltage and a ground voltage, and generates a first voltage higher than both the supply voltage and the ground voltage, and a second voltage lower than both the supply voltage and the ground voltage. Each memory cell in the memory has a nonvolatile storage transistor with a floating gate. To erase the memory cell, the first voltage is applied on a first side of the floating gate and the second voltage is applied on a second, opposite side of the floating gate. To program the memory cell, the second voltage is applied on the first side of the floating gate, and the first voltage is applied on the second side of the floating gate.

A disc reproducing apparatus reproduces information as a digital signal from a disc, having an interface for sending and receiving a reproduction signal and a command to/from a host computer, comprising a processor unit for controlling the operation of the disc reproducing apparatus, a first signal transfer path, connected to the inter-face, for transferring a command signal corresponding to a command received from the host computer to the processor unit, an operating unit, disposed in the disc reproducing apparatus, for generating an operation signal corresponding to a user's operation, and a second signal transfer path, connected to the operating unit, for transferring an operation signal corresponding to the user's operation of the operating unit to the processor unit, wherein the processor unit determines whether or not to validate the execution of the command of the command signal transferred from the host computer through the first signal transfer path corresponding to the operation signal transferred from the operating unit through the second signal transfer path. Since the content of the operation of the disc reproducing apparatus can be freely selected by the user, even if a computer virus knows the command execution restricting function, the computer virus does not know the content of the operation of the operating portion.

Command executing method of information reproducing apparatus, record medium for recording program that causes information reproducing apparatus to execute command, and disc reproducing apparatus

A disc reproducing apparatus is disclosed, that comprises an optical pickup for reading a signal from a disc, a level slice PLL circuit for reproducing data from the signal read by the optical pickup, a signal processing unit for reproducing data with the clock signal reproduced by the level slice PLL circuit, and a range changing circuit for changing a linear velocity range (namely, a capture range) of the level slice PLL circuit in a time period at least after an occurrence of a reproduction command until data is reproduced from the disc at a target linear velocity corresponding to the reproduction command. Thus, even in a transient state such as an accelerating/decelerating state of a CD-ROM or the like, data can be properly reproduced from the disc.

Disc reproducing apparatus and disc reproducing method

An electrically erasable programmable read-only memory receives a single supply voltage and a ground voltage, and generates a first voltage higher than both the supply voltage and the ground voltage, and a second voltage lower than both the supply voltage and the ground voltage. Each memory cell in the memory has a nonvolatile storage transistor with a floating gate. To erase the memory cell, the first voltage is applied on a, first side of the floating gate and the second voltage is applied on a second, opposite side of the floating gate. To program the memory cell, the second voltage is applied on the first side of the floating gate, and the first voltage is applied on the second side of the floating gate.

Growing community of inventors

Tokyo, Japan

Takuji Yoshida