Sony Corporation

Saturn Licensing LLC

Dexerials Corporation

Shozo Masuda

Yoichiro Sako

Yoshitomo Osawa

Akira Kurihara

Isao Kawashima

Masatake Hayashi

Shoei Kobayashi

Tomio Aoki

Tadashi Morimoto

Kenichi Kabasawa

Naoji Nada

Yuji Arataki

Tohru Kadono

Ryuichi Iwamura

Tsubasa Tsukahara

Tamotsu Yamagami

Toru Takeda

Yasushi Ito

Yoshiyuki Akiyama

Tetsuji Kawashima

Michihiko Iida

Kazutoshi Shimizume

Hideo Owa

Kazuhito Shimoda

Yoshihiro Oshima

Yasutoshi Katsuda

Takahiro Ichikawa

Shoji Sato

Kazuhiro Yasuda

Kazuto Kimura

Shigeharu Sato

Tetsuyuki Yoshida

Hideaki Inoue

Yasuro Nakagawa

A surface light source device which illuminates a transmission-type liquid crystal display unit from the back surface includes P&#xd7;Q surface light source units with individually controlled light sources. Each of the light sources includes a plurality of light-emitting element units. Each of the light-emitting element units includes at least one red light-emitting element that emits red light, at least one green light-emitting element that emits green light, and at least one blue light-emitting element that emits blue light. The center of mass of a luminance profile based on each of a plurality of red light-emitting elements, a plurality of green light-emitting elements, and a plurality of blue light-emitting elements in each surface light source unit substantially coincides with the center of mass of the surface light source unit.

Surface light source device and liquid crystal display unit

A light source device capable of suppressing generation of color unevenness, and a display device using the same are provided. The light source deviceis provided with a plurality of excitation light sourceswhich are arranged at prescribed intervals D on a substrateand emit blue light, and a phosphor layerwhich converts part of the blue light emitted from the excitation light sources into red light and green light and arranged at a distance from the excitation light sourcesto oppose the substrate. Fluctuation of intensity of each color light due to nonuniform application of the phosphor layer is difficult to occur as compared with a configuration in the past where the phosphor layer is formed adjacent to each excitation light source.

Light source device and display device

An image pickup apparatus includes a light-beam splitting mirror configured to transmit and reflect incident light that has entered the light-beam splitting mirror through a photographing optical system; an image sensor that receives light transmitted through the light-beam splitting mirror; an autofocus detecting unit that receives light reflected by the light-beam splitting mirror; a signal processing unit configured to process an image pickup signal of the image sensor; and a display unit configured to display an image being photographed, on the basis of an image signal obtained at the signal processing unit. In the image pickup apparatus, the light-beam splitting mirror has spectral characteristics including a reflectivity of 25% or more and 35% or less at a wavelength of 400 to 650 nm and a reflectivity of 60% or more at a wavelength of about 700 nm through optimization.

Image pickup apparatus

A signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus, whereby a signal recorded on a signal record medium can be identified as being an original signal or a copied signal. A CPUgenerates, at a pre-set time interval, an identification signal having a meaning at a pre-set time interval, and an identification signal addition circuitadds the identification signal to the video signals and/or the audio signals. A sector forming circuitand circuit components up to a recording/reproducing headrecord the video signals and/or the audio signals and the ancillary identification signal on an optical disc

Signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus

A display apparatus includes a display unit having a display screen divided into a plurality of regions and controlled using a transmittance ratio on a pixel-by-pixel basis, a backlight including a plurality of sets of light sources, each set being disposed so as to correspond to one of the regions, and a control unit for identifying display luminance in each region, computing the emission luminance of each light source on the basis of the identified display luminance while taking into account an effect on the region of the other light sources not corresponding to the region, and computing a correction value for each pixel on the basis of a shift amount between the set emission luminance and an optimal display luminance for one of the regions, and delivering a display driving signal generated on the basis of the correction value to each pixel so as to control the luminance of the pixel.

Display apparatus and method for controlling a backlight with multiple light sources of a display unit

A signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus, whereby a signal recorded on a signal record medium can identified as being an original signal or a copied signal. A CPU generates, at a pe-set time interval, an identification signal having a meaning at a pre-set time interval, and an identification signal addition circuit adds the identification signal to the video signals and/or the audio signals. A sector forming circuit and circuit components up to a recording/reproducing head record the video signals and/or the audio signals and the ancillary identification signal on an optical disc

Signal recording/reproducing method and apparatus, signal record medium and signal

A signal recording/reproducing method and apparatus signal record medium and signal transmission/reception method and apparatus, whereby a signal recorded on a signal record medium can be identified as being an original signal or a copied signal. A CPU generates, at a pe-set time interval, an identification signal having a meaning at a pre-set time interval, and an identification signal addition circuit adds the identification signal to the video signals and/or the audio signals. A sector forming circuit and circuit components up to a recording/reproducing head record the video signals and/or the audio signals and the ancillary identification signal on an optical disc

A signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus, whereby a signal recorded on a signal record medium can identified as being an original signal or a copied signal. A CPU generates, at a pre-set time interval, an identification signal having a meaning at a pre-set time interval, and an identification signal addition circuit adds the identification signal to the video signals and/or the audio signals. A sector forming circuit and circuit components up to a recording/reproducing head record the video signals and/or the audio signals and the ancillary identification signal on an optical disc

Thermal stress is prevented from accumulating on a disk recording medium. Data to be recorded is divided into 32-kilobyte clusters, and a front link area and a back link area, whose lengths are randomly changed, formed of a total of 8 frames are added before and after the clusters. Then, the data is recorded on a predetermined area of a disk on the basis of address data prerecorded on the disk.

Disk recording and reproducing apparatus and method for use in a rewritable type disk

A cluster and a cluster are linked by a link frame. The link area includes postamble, post guard, and a slice/PLL area, as well as a link data area. Substantially the same data as that recorded in clusters is recorded in the link data area. The capacity of a rewritable disc can thus be increased.

Recordable disc and device for recording data in the same disc

When a linking-point indicating signal, a defect detection signal, and a peak detection signal are obtained, a switch control section controls the on/off states of switches such that the time constant of a filter section becomes smaller or larger than the standard value during the specified period. With this control, in a linking section or a period in which a reproduced signal is missing, the threshold for asymmetry compensation traces a signal state at a higher speed, or the preceding threshold is maintained irrespective of the state of an input signal.

Asymmetry compensation apparatus and reproduction apparatus for recordable disc

Rewritable disc and device for recording data in the same disc

Growing community of inventors

Tokyo, Japan

Shozo Masuda