Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Sony Corporation

Koninklijke Philips Corporation N.v.

Panasonic Intellectual Property Management Co., Ltd.

Koninklijke Philips Electronics N.v.

Shigeru Furumiya

Hiromichi Ishibashi

Takashi Ishida

Junichi Minamino

Atsushi Nakamura

Toyoji Gushima

Mamoru Shoji

Yoshinari Takemura

Takeshi Nakajima

Makoto Usui

Hironori Deguchi

Yuichi Kamioka

Kenji Koishi

Shunji Ohara

Yuji Hisakado

Yoshito Aoki

Aalbert Stek

Cornelis Marinus Schep

Jacobus Petrus Josephus Heemskerk

Yoshiharu Kobayashi

Shoei Kobayashi

Noboru Yamada

Naoyasu Miyagawa

Isao Kobayashi

Haruhiko Habuta

Chikashi Inokuchi

Hisashi Senga

Masahito Nakao

Shinichi Tanaka

Ken'ichi Kasazumi

Harumitsu Miyashita

Teruhiro Shiono

Jun Nakano

Hiromu Kitaura

Tomokuni Iijima

Toshiya Akagi

Yoshiyuki Miyabata

Ryutaro Futakuchi

Tomoyasu Takaoka

Atsushi Miyazaki

Nobutoshi Fujinami

Satoshi Kondo

Kazuhisa Yamamoto

Hiroshi Ogawa

Kenichi Nishiuchi

Kiminori Mizuuchi

Takashi Inoue

Kousei Sano

Yasuo Kitaoka

Tamotsu Yamagami

Shin-ichi Kadowaki

Norihiro Imamura

Kazuya Hisada

Daisuke Ogata

Shin Masuhara

Hideki Kitaura

Naohiro Kimura

Nobuyoshi Kobayashi

Tatsushi Sano

Yoshihito Ohta

Norihito Fujinoki

Yukako Doi

Ryoji Yamaguchi

Yukihiro Yamasaki

Katsuyuki Morita

Yoshimitsu Noguchi

Takashi Mihara

Tosifumi Yokoyama

Jun'ichi Minamino

Jun-ichi Ninamino

Katsuhiko Yoshida

Jacobus Petrus Heemskerk

A display apparatus includes a first mirror and a half mirror between a display device and a concave mirror. The first mirror reflects emission light emitted from an elongate display surface of the display device, toward the half mirror. The half mirror reflects the light reflected by the first mirror, toward the concave mirror. The concave mirror reflects the light reflected by the half mirror, toward the half mirror. In a top view of the display apparatus, a line passing through a center of the display surface in a longitudinal direction and parallel to the longitudinal direction and a tangent line passing through a center of a reflection surface of the concave mirror in a longitudinal direction and parallel to the longitudinal direction intersect at a predetermined angle.

Display apparatus

An image processor includes: an image sensor which outputs a short exposure image and a long exposure image; a sensor controller which controls first and second exposure sensitivities; a motion blending ratio calculator which calculates a motion blending ratio based on a motion amount of a subject; a motion-adapted image synthesizer which generates a motion-adapted image based on the motion blending ratio; and an HDR image synthesizer which synthesizes the motion-adapted image and the short exposure image, to generate an HDR image. The sensor controller controls the first exposure sensitivity: so that the first exposure time changes from increasing to constant and the first sensor gain changes from constant to increasing, when the brightness of the subject decreases from a first subject brightness; and so that the first exposure time changes to increasing and the first sensor gain changes to constant, when the brightness decreases from a second subject brightness.

Image processor and image processing method

An image processor includes: an image sensor outputting a short exposure image and a long exposure image; a sensor controller that, when brightness of the subject changes, controls first exposure sensitivity to cause the short exposure image to have first brightness and controls second exposure sensitivity to cause the long exposure image to have second brightness; a motion blending ratio calculator calculating a motion blending ratio based on a motion amount of the subject; a motion-adapted image synthesizer generating a motion-adapted image by synthesizing a corrected short exposure image and the long exposure image based on the motion blending ratio; and an HDR image synthesizer generating an HDR image by synthesizing the motion-adapted image and the short exposure image together. When the subject becomes darker, the sensor controller controls the first and second exposure sensitivities to cause the first sensor gain to be at most the second sensor gain.

An image processing device configured to synthesize a first image and a second image shot in two or more exposure times different in length in a parallel way within one frame time, includes: a level adjuster configured to adjust the first image and output a corrected first image having a luminance level substantially aligned with a luminance level of the second image; a movement detector configured to calculate absolute values of differences between positionally corresponding pixel pairs in the corrected first image and the second image and accumulate the calculated absolute value on an image block basis to obtain a movement detection amount on the image block basis; a movement blending ratio calculator configured to smoothen the amounts of detected movement and calculate a movement blending ratio between positionally corresponding pixel pairs based on the smoothened amounts of detected movement; and an image synthesizer configured to generate a movement-adaptive image by synthesizing pixels at the corresponding positions at the movement blending ratio.

Image processing device, image processing method, and image processing circuit

The present application discloses an information device for performing optical information processes for a recording medium including a phase-change recording layer which becomes amorphous under irradiation with pulsed amorphization light that has prescribed amorphization energy Ew. The information device includes an irradiator configured to irradiate a prescribed region of the phase-change recording layer with pulsed light and an energy setting portion which sets crystallization energy Ee for the pulsed light to crystallize the prescribed region. The crystallization energy Ee per the pulsed light, which is set by the energy setting portion, is greater than the amorphization energy Ew per the pulsed amorphization light.

Information device and method for performing information processing

An information recording medium () of the present invention includes a substrate () and a recording layer provided on the substrate () and having optical properties that can be changed by irradiation with a laser beam. The recording layer is formed of a plurality of arrayed minute recording regions (e.g., phase-change particles ()). A part or all of the recording region is made of a recording material containing Te and O. The recording region has a length of 30 nm or less in an information recording direction. Preferably, the recording material further contains an element M, where M is at least one element selected from the group consisting of Pd, Au, and Pt.

Information recording medium and manufacturing method of same

A recording medium () is provided with a left-handed material layer () having at least one of a permittivity and a permeability of a negative value, and having substantially periodically formed structures; and a recording layer () including island-shaped and substantially periodically arranged recording regions (), and being laminated on the left-handed material layer (). The structure period of the left-handed material layer () is equal to or is an integral multiple of the arrangement period of the recording regions () of the recording layer ().

Recording medium, optical information device and method for producing recording medium

An optical disk apparatus has: a laser () that outputs light; an optical system that includes an SIL () for forming a predetermined sized beam spot on an optical disk () using the light from the laser; a detector () that detects output power of the laser and generates a laser power detection signal; a laser power control circuit () that controls the output power of the laser using the laser power detection signal; a detector () that detects a gap length between the optical disk and the SIL and generates a gap detection signal; and a gap control circuit () that controls the gap length between the optical disk and the SIL using the gap detection signal. The power control circuit has a gain crossover frequency greater than a gain crossover frequency of the gap control circuit.

Optical information apparatus and gap control method thereof

A recording wavelength generator selects control parameters of a recording pulse sequence, based on combinations of mark length, a first space length of a first space immediately before the mark, and a second space length of a second space immediately after the mark. A laser drive circuit records the marks by the recording pulse sequence. The first and second space lengths are classified into m and n types, respectively. An absolute value of a difference between two predetermined control parameters from among (m&#xd7;n) control parameters selected during recording on a second information layer located on an incidence side of the laser beam with respect to a predetermined first information layer from among N information layers is equal to or greater than an absolute value of a difference between two predetermined control parameters from among the (m&#xd7;n) control parameters selected during recording on the first information layer.

Optical information recording method, optical information recording device, optical information reproduction method, optical information reproduction device, and optical information recording medium

In an information recording medium including a substrate and an information layer having a recording layer, on and from which information is recorded and reproduced by laser beam application, the recording layer is made from a Te&#x2014;O-M-Mmaterial consisting of Te, O, M(wherein Mis at least one element selected from Au and Pd) and M(wherein Mis at least one element selected from Ag, Cu and Ni) with a content of Te of 10 atom % to 50 atom %, the content of O of 40 atom % to 70 atom %, the content of Mof 3 atom % to 15 atom %, and the content of Mof 3 atom % to 15 atom %. This constitution provides a low-cost information recording medium which enables high-density recording and stable reproduction of recorded data for a long period of term.

Information recording medium, method for manufacturing the same, and recording/reproducing apparatus

An optical recording method includes the steps of: encoding record data to generate encoded data which is a combination of marks and spaces; classifying the encoded data according to a combination of a mark length of the mark, a space length of a first space that immediately precedes the mark, and a space length of a second space that immediately succeeds the mark; generating a write pulse train for forming the mark, in which at least one of a leading end edge position, a trailing end edge position and a pulse width of the write pulse train is changed according to a classification result; and irradiating the optical disc medium with the write pulse train generated to form the plurality of marks on the optical disc medium.

Optical recording method, optical recording device, master medium exposure device, optical information recording medium, and reproducing method

An optical recording method for recording information by irradiating an optical disc medium with a modulated write pulse train of laser light variable over a plurality of power levels such that a plurality of marks are formed on the optical disc medium, edge positions of each of the marks and a space between adjacent two of the marks being utilized for recording of the information. The optical recording method includes the steps of: encoding record data to generate encoded data which is a combination of marks and spaces; classifying the encoded data according to a combination of a mark length of the mark, a space length of a first space that immediately precedes the mark, and a space length of a second space that immediately succeeds the mark; generating a write pulse train for forming the mark, in which at least one of a leading end edge position, a trailing end edge position and a pulse width of the write pulse train is changed according to a classification result; and irradiating the optical disc medium with the write pulse train generated to form the plurality of marks on the optical disc medium.

Optical recording method, optical recording apparatus, apparatus for manufacturing a master through exposure process, optical information recording medium and reproduction method

A most probable path is selected from a number n (where n&#x2267;2) of paths of state transitions occurring from a first state S(where k&#x2267;3 and j&#x2267;2) at a time k&#x2212;j into a second state Sat a time k. The method includes the steps of detecting predetermined combinations of the first and second states Sand Sdefining the n probable paths in a predetermined period j between the times k&#x2212;j and k, and evaluating the reliability of a read signal, decoded in the period j, by |Pa&#x2212;Pb|. Pa and Pb indicate the probabilities of state transition of first and second state transition paths in the period j. The first and second state transition paths are estimated to be the most probable and the second most probable, respectively, among the n probable paths defined by the combinations detected.

Method for evaluating quality of read signal and apparatus for reading information

A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area of linking frames in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded.

Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus

An information recording medium, comprising N number (N is an integer fulfilling N&#x2267;3) of information layers on which information is recordable, and allowing information to be recorded on each of the information layers and allowing information recorded on each of the information layers to be reproduced by being irradiated with laser light. The N number of information layers include an N'th information layer, an (N&#x2212;1)th information layer, an (N&#x2212;2)th information layer, . . . a second information layer and a first information layer sequentially located from a laser light incidence side. A reflectance of the N'th information layer is R, and a reflectance of an M'th information layer (M refers to every integer fulfilling N&#x3e;M&#x2267;1) is R. The laser light used to irradiate the N'th information layer for reproducing information recorded on the N'th information layer has an upper limit reproduction power Pr, and the laser light used to irradiate the M'th information layer for reproducing information recorded on the M'th information layer has an upper limit reproduction power Pr. The following expressions (1) and (2) are concurrently fulfilled:R&#x3e;R&#x2003;&#x2003;(1)Pr&#x3c;Pr&#x2003;&#x2003;(2).

Information recording medium, recording apparatus, reproducing apparatus and reproducing method

Growing community of inventors

Hyogo, Japan

Shigeru Furumiya