Abstract: In an AP, a Trigger frame generator generates a trigger signal instructing an uplink signal transmission, the trigger signal including a terminal information field that includes a terminal ID subfield and a resource unit allocation information subfield, and a radio transmitter/receiver transmits the trigger signal. In a case where the trigger signal includes a first terminal information field specifying one or more contiguous resource units for random access, the Trigger frame generator sets an unused ID that is not to be used as a terminal ID in the first terminal information field.

Abstract: Provided is a radio communication device capable of reducing interference, caused by non-SR transmission, with a basic service set (BSS) performing spatial reuse (SR) transmission. An SR transmission resource control unit (107) of the radio communication device (SR initiator) (100) determines transmission resources for an SR signal to be transmitted by means of SR to a second BSS other than a first BSS to which the radio communication device (100) belongs on the basis of radio quality information transmitted from other radio communication devices (SR responders) in the first BSS. A radio transmission/reception unit (101) transmits the SR signal by using the determined transmission resources.

Abstract: A base station equipped with: a receiver circuit that receives control information pertaining to sharing channel state information during coordinated communication between base stations; and a control circuit that, on the basis of the control information, controls the transmission of the channel state information to another base station.

Abstract: This wireless communication control device is a first wireless control device provided with: a control circuit that causes the waveform of a reference signal transmitted to a wireless communication device in coordination with a second wireless communication control device to differ, either in the frequency domain or the time domain, from the waveform of a reference signal transmitted to the wireless communication device by the second wireless communication control device; and a transmission circuit that transmits the reference signal.

Abstract: A base station according to the present invention is equipped with: a receiver circuit that receives control information pertaining to sharing a response signal to a downlink signal during coordinated communication between base stations; and a control circuit that, on the basis of the control information, controls the transmission of the response signal to another base station.

Abstract: The present invention improves channel estimation accuracy in wireless communication. This communication device comprises: a control circuit that sets, to a control signal, information relating to an additional reference signal for each destination device; and a transmission circuit that transmits the control signal.

Abstract: In one embodiment, a liquid crystal display device includes first and second substrates, an active area to display an image, a seal material surrounding the active area, and an intermediate area between the active area and the seal area. In the intermediate area, first and second color filters are formed on the second substrate. An overcoat layer is laminated on the first and second color filters. First and second pillar-shaped spacers are provided between the overcoat layer and the first substrate corresponding to the first and second color filters to form a first and second cell gaps between the first and second substrates, respectively. The first cell gap adjacent to the active area between the first and second substrates is smaller than the second cell gap adjacent to the seal area in the intermediate area.

Abstract: In one embodiment, a liquid crystal display device includes first and second substrates, an active area to display an image, a seal material surrounding the active area, and an intermediate area between the active area and the seal area. In the intermediate area, first and second color filters are formed on the second substrate. An overcoat layer is laminated on the first and second color filters. First and second pillar-shaped spacers are provided between the overcoat layer and the first substrate corresponding to the first and second color filters to form a first and second cell gaps between the first and second substrates, respectively. The first cell gap adjacent to the active area between the first and second substrates is smaller than the second cell gap adjacent to the seal area in the intermediate area.

Abstract: A protruding portion 29 composed of protruding portions 29a, 29b is provided, with the same material as that of color filter layers 21R, 21G, 21B and a black matrix layer 22 different from a seal material for adhesively attaching an array substrate and a counter substrate 12 to each other, on a principal surface of the counter substrate 12. A liquid crystal filling port for filling a liquid crystal material LC to compose a liquid crystal layer 13 between the substrates 11 and 12 is sectioned by the protruding portions 29a, 29b. The shape and dimensions of the liquid crystal filling port can be stabilized to improve manufacturability.

Abstract: An inspection circuit is constructed by first inspection TFTs provided to one end sides of signal lines, and second inspection TFTs provided to the other end sides of the signal lines. By using both the first inspection TFTs and the second inspection TFTs, the driving capability can be secured while miniaturizing the first inspection TFTs and the second inspection TFTs. Therefore, the signal lines can be reliably inspected while saving the space for the inspection circuit.

Abstract: An inspection circuit is constructed by first inspection TFTs provided to one end sides of signal lines, and second inspection TFTs provided to the other end sides of the signal lines. By using both the first inspection TFTs and the second inspection TFTs, the driving capability can be secured while miniaturizing the first inspection TFTs and the second inspection TFTs. Therefore, the signal lines can be reliably inspected while saving the space for the inspection circuit.

Abstract: In the DSP which processes an image pickup signal obtained via an optical lens (imaging optical system) and outputs the resulting image pickup signal as processes to an image display section, distortion aberration due to the optical lens is corrected according to a distance from a pixel position corresponding to an optical axis of the optical lens by changing the pixel position for each of a target image in radial directions when the pixel position corresponding to the optical axis is set as a center while suppressing an occurrence of jaggy in the resulting image. With this structure, an image pickup apparatus which corrects distortion aberration by changing pixel position only in radial directions from a pixel position corresponding to an optical axis of the imaging optical system while suppressing an occurrence of jaggy.

Abstract: An imaging system that is capable of generating high resolution and high frame rate video includes of a beam splitter, two lenses, a high resolution-low frame rate camera, and a low resolution-high frame rate camera. The beam splitter reflects a part of an incident ray. The two lenses gather the ray reflected from the beam splitter and the ray penetrating the beam splitter, respectively. The low resolution-high frame rate camera is a sensor that takes an image of the ray gathered by one of the lenses at a low resolution and a high frame rate. The high resolution-low frame rate camera is a sensor that takes an image of the ray gathered by the other of the lenses at a high resolution and a low frame rate.

Abstract: A solid-state image sensing apparatus comprises a signal processing section for performing signal processing on an image signal output from a solid-state image sensing device for performing photoelectric conversion of incident light, wherein the signal processing section includes: a temporary storage section for temporarily storing the image signal; and a transmission timing adjusting section for performing the output control of a transmission timing control signal and providing the transmission timing control signal to the temporary storage section such that the image signal stored in the temporary storage section is output within a period other than an image data interval of the image signal output from the solid-state image sensing device.

Abstract: Deviation in phase difference of the light passing each of the red, green, and blue dots, i.e., 2&pgr;*(&agr;*dR*&Dgr;nR+ReR)/&lgr;R, 2&pgr;*(&agr;*dG*&Dgr;nG+ReG)/&lgr;G, and 2&pgr;*(&agr;*dB*&Dgr;nB+ReB)/&lgr;B, are matched when thickness of a liquid crystal layer 7 at red, green, and blue dots are dR, dG, and dB; wavelength of a visible light passing each dot is &lgr;R, &lgr;R, and &lgr;B; refractive index anisotropy of the liquid crystal layer 7 in the visible light wavelengths &lgr;R, &lgr;R, and &lgr;B is &Dgr;nR, &Dgr;n G, and &Dgr;nB; and retardations of a retardation plate are ReR, ReG, and ReB. This enables the achievement of a reflective color LCD with high achromatic color during white display and high contrast display.

Abstract: A reflection type liquid crystal display device having a wide viewing angle, and capable of assuring a light utilization factor at or above a certain value for bright display even when conditions of an external light are varied is provided. The reflection type liquid crystal display device comprises (a) a liquid crystal cell comprising an upper substrate, a lower substrate and a liquid crystal layer between the substrates, (b) a polarizing film provided in a side of the upper substrate in the liquid crystal cell, (c) light reflecting means provided in a side of the lower substrate in the liquid crystal cell; and (d) an optical member provided between the polarizing film and the liquid crystal cell, and having a retardation axis when it is viewed in the normal direction. An angle between an absorption axis of the polarizing film and the retardation axis of the optical member is within a range of about 88° to about 92° or about −2° to about +2° .

Abstract: A reflection type liquid crystal display device having a wide viewing angle, and capable of assuring a light utilization factor at or above a certain value for bright display even when conditions of an external light are varied is provided. The reflection type liquid crystal display device comprises (a) a liquid crystal cell comprising an upper substrate, a lower substrate and a liquid crystal layer between the substrates,(b) a polarizing film provided in a side of the upper substrate in the liquid crystal cell, (c) light reflecting means provided in a side of the lower substrate in the liquid crystal cell; and (d) an optical member provided between the polarizing film and the liquid crystal cell, and having a retardation axis when it is viewed in the normal direction. An angle between an absorption axis of the polarizing film and the retardation axis of the optical member is within a range of about 88° to about 92° or about −2° to about +2°.

Abstract: A reflection liquid crystal display device comprising only one polarization film, wherein the twist angle of a nematic liquid crystal ranges from 0° to 90°, the relationship between the difference between the indices of birefringence &Dgr;nLC, the thickness of the liquid crystal layer dLC, and the retardation of the phase plate RF is expressed by &Dgr;nLC.dLC=0.20 to 0.30 &mgr;m, RF-&Dgr;nLC.dLC=−0.20 to −0.

Abstract: In a reflective liquid crystal display device with a single polarizing film and two retardation films located in between the polarizing film and liquid crystal cell, the angle of twist of nematic liquid crystal is 45°˜90°, the product of the birefringence of the liquid crystal and the thickness of the liquid crystal layer is 0.20 &mgr;m˜0.30 &mgr;m, the retardation value of the retardation film on the polarizing film side is 0.13 &mgr;m˜0.18 &mgr;m, the retardation value of the retardation film on the liquid crystal cell side is 0.13 &mgr;m˜0.18 &mgr;m, and the Z coefficient of each of two retardation films is 0.3˜1.0.

Abstract: The reflective liquid crystal display device uses only one polarizing film but achieves display of bright white and achromatic color with high contrast. The twisting angle of a nematic liquid crystal is set to 45° to 90°, and the retardation value of a liquid crystal layer is set to &Dgr;nLC·dLC=0.20 &mgr;m to 0.30 &mgr;m. Two retardation films are configured with a structural component having small chromatic dispersion in refractive index anisotropy and a z coefficient from 03 to 1.0. Retardation values of these two retardation films are set to RF1=0.23 &mgr;m to 0.28 &mgr;m, and RF2=0.13 &mgr;m to 0.18 &mgr;m. When the angle of an absorption axis direction of the polarizing film is denoted by &phgr;P, and the angles of retardation axes directions of the two retardation films are denoted by &phgr;F1 and &phgr;F2, a set of Formulae &phgr;P=75°-195°, &phgr;P-&phgr;F1=95°-115°, and &phgr;P-&phgr;F2=155°-175° are satisfied.