Abstract: Systems and methods of the present invention are directed to an optical element that includes a diffraction grating, an inclined surface, good optical characteristics, and an optical element manufacturing metal die. The optical element manufacturing metal die is capable of injection molding of an optical element having a complex structure. Further, the optical element manufacturing metal die includes nestings that have a plurality of mirror surface forming portions. The pluralilty of mirror surface forming portions include a plurality adjoining pairs of mirror surfaces. The plurality of mirror surface forming portions are molded by two adjoining pairs of the plurality of adjoining pairs of mirror surface forming portions, which are formed on the same nesting. At least one of the plurality of mirror surface forming portions are formed by a mirror surface grinding method.

Abstract: To provide a plastic material suitable for preservation of the environment and a method for producing the same by adding organic or inorganic sludge to a resin derived from waste plastics to form a flame-retarded resin, an antistatic resin, or a biodegradable resin so that the electrical and physical properties of the resin are improved and sludge and waste plastics are effectively utilized.

Abstract: A method of manufacturing a semiconductor laser device includes the steps of: providing a laser chip, in which a semiconductor layer is formed on a substrate, a supporting plate which supports the laser chip, a mounting plate, a first solder film positioned between the laser chip and the mounting plate and a second solder film positioned between the mounting plate and the supporting plate to form a stacked laser chip structure; applying heat to the stacked laser chip structure sufficient to melt the first solder film and the second solder film; and, applying pressure to the stacked laser chip structure during the heating step to cause simultaneous adhering of the laser chip, the mounting plate and the supporting plate to each other.

Abstract: A solid-state image sensor comprising an effective pixel area having light receiving portions which perform photoelectric conversion by taking in light and an optical black area which forms a reference black level without taking in light. The light receiving portions are formed inside electrode opening port portions which are formed through an electrode. Electrode opening port portions in the optical black area which are formed through the electrode are formed narrower than the electrode port portions in the effective pixel area. Alternatively, there may be no opening port portions formed in the optical black area.

Abstract: A color selection electrode and a method of producing the same, for a high definition cathode ray tube with a finer pitch of mask apertures free from limitations due to the thickness of the iron-alloy plate of the mask.

Abstract: A data recording and/or reproducing apparatus in which, for recording and/or reproducing data required to be real-time data, such as compressed moving picture data, error occurrence is suppressed efficiently as the real-time performance are maintained to improve data reliability. If a writing error is caused when recording data of an AV data stream on a magnetic disc 5, the state of the buffer memory 36 at the time point of occurrence of the writing error is monitored. Depending on the state of the buffer memory 36, switching is made between performing and not performing a retry operation of re-recording data corrupted with a writing error.

Abstract: A nonvolatile semiconductor memory device with high reliability (free from troubles in storing data), a high charge injection efficiency, and enabling parallel operation in a VG cell array, includes channel forming regions, a charge storing film which consists of stacked dielectric films and is capable of storing a charge, two storage portions forming parts of the charge storing film and overlapping the channel forming regions, a single layer dielectric film between the storage portions and in contact with the channel forming region, a control gate electrode on the single layer dielectric film, and a memory gate electrode on the storage portions.

Abstract: In a television signal receiver having two or more tuners, initial channel mapping can be expedited by simultaneously using all tuners in parallel to map the receivable channels. A processor controls the application of television signals from one or more sources to the two or more tuners and controls the channel mapping function of both tuners simultaneously.

Abstract: A method and system identify programming code that is appropriate to the architecture and capabilities of a set-top terminal in a cable television system. The appropriate programming code is identified from among a variety of code objects being broadcast from the headend facility of the cable television system. A platform identifier stored in the set-top terminal is matched to a corresponding platform identifier in an entitlement management message or other download locator message that specifies where in the transport stream from the headend a particular code object can be acquired. By acquiring the object corresponding to the message bearing a matching platform identifier, the set-top terminal acquires programming code compatible with its attributes. Additionally, the cable television system can then optimally support a varied population of set-top terminals.

Abstract: An approximately rectangular parallelopiped shaped optical element 100 has a substrate (base) 101, a lens 102, and an axially symmetric convex portion 103D formed in an upper surface 100U of the substrate 101. The radius of curvature of the surface of this convex portion 103D is approximately constant. The substrate 101 has an axially symmetric concave portion 101B in a bottom surface 100B of the substrate 101. A radius of curvature of the surface of this concave portion 101B is approximately constant. The concave portion 101B is filled with an optical material having a refractive index different from the substrate 101, thereby forming the lens 102. A flat portion 103E is formed around the convex portion 103D. Axes of symmetry of the convex portion 103D and the concave portion 101B are positioned on an identical straight line and are vertical with respect to the flat portions 103E and 101C.

Abstract: An alternating current driven type plasma display device includes a plurality of sustain electrodes having a spacing less than 5×10−5 m and a discharge gas in a discharge space where discharge takes place. The discharge gas consists of xenon gas alone having a pressure greater than or equal to 1.0×104 Pa and less than or equal to 3.0×104 Pa or the discharge gas consists of krypton gas alone having a pressure less than or equal to 6.6×104 Pa.

Abstract: The present invention discloses a method for manufacturing a cathode ray tube capable of forming on an inner surface side of a panel a conductive reflective film and a heat absorbing film, both being excellent in the characteristics and the film qualities thereof, which comprises a first step for forming on a fluorescent film preliminarily formed on the inner surface of a panel a conductive reflective film by depositing aluminum by the vacuum evaporation process; a second step for forming a diffusion preventive film made of aluminum oxide on the surface of the conductive reflective film; and a third step for forming a heat absorbing film on the diffusion preventive film by depositing chromium by the vacuum evaporation process.

Abstract: A memory control device capable of controlling data writing into a buffer memory where the data reproduced from a disk recording medium are stored temporarily is disclosed. The control device comprises a signal generation circuit for generating a stable sync detection signal which is obtained at a normal detection timing of a synchronizing signal in response to a sync detection signal generated by detection of the synchronizing signal inserted in the reproduced data per predetermined data unit. The control device further comprises a data writing controller capable of reading out time base information inserted per predetermined data unit in synchronism with the timing of generation of the stable sync detection signal, and also capable of controlling the data writing into the buffer memory on the basis of the time base information thus read.

Abstract: A high performance demodulator, capable of realizing further broadband characteristics, low distortion, a low power consumption, and small fluctuation in characteristics against fluctuations in temperature and fluctuations over time compared with a conventional multi-port demodulators, wherein a two-terminal first phase shifter 1004, three-terminal second branch circuit 1002, two-terminal second phase shifter 1005, and three-terminal third branch circuit 1003 are connected in series between a first signal input terminal TINSr for a reception signal and a second signal input terminal TINSlo for a local signal, a third terminal c of a first branch circuit 1001 is connected to a first power detection circuit 1006, a third terminal c of the second branch circuit 1002 is connected to a second power detection circuit 1007, and a third terminal c of the third branch circuit 1003 is connected to a third power detection circuit 1008, and comprising an N-port signal-IQ signal conversion circuit 1009 for receiving outpu

Abstract: Differential signals output by a transfer unit of a latch stage are fed back to a comparator stage as negative feedback signals through a feedback circuit including a differential amplifier comprising two transistors. In this configuration, amplitudes of signals supplied to the transfer unit are stabilized by a feedback effect provided by the feedback circuit to become independent of a through-rate of an input signal supplied to the comparator stage. To be more specific, if the through-rate is high, the amplitudes are reduced, but if the through-rate is low, the amplitudes are increased. As a result, variations in sampling delay related to sampling clock signals are suppressed. With this configuration, for example, harmonic distortions in a flash A/D converter are suppressed as well.

Abstract: In a system in which images having parallax data, and which are made up of plural images containing the parallax information, are processed with viewing point conversion, and the resulting new images having parallax data are used, as in a system of generating a holographic stereogram, a unit for generating the images having parallax data is to be independent from other unit or units. To this end, the information necessary to perform viewing point conversion processing of converting the viewing point for an object is attached to images having parallax data when the images having parallax data have been produced. When the images having parallax data is exchanged between the unit for generating the images having parallax data and other unit or units, the exchanged images having parallax data need to be those to which the information has been attached.

Abstract: In a flat cathode-ray tube, there are problems that an axis of electron beam is separated before the electron beam enters a main lens due to magnetic field of a magnet disposed outside a neck, and coma aberration is generated to degrade an image quality. It is an object of the present invention to solve these problems. A flat cathode-ray tube comprises an electron gun 281 having a main lens 35M whose center coincides with a tube axis, a deflection yoke, and a magnet disposed outside a neck. An axis of a prefocus lens of the electron gun is separated from the tube axis.

Abstract: A conductive bond comprises conductive colloidal particles and a dispersant for dispersing the conductive colloidal particles. A multilayer printed circuit board includes a plurality of substrates, each having a conductive pattern on at least one face thereof. Any adjacent two of the substrates are separated by an insulating layer, and the conductive pattern of a first substrate of the two substrates faces the conductive pattern of a second substrate of the two substrate. The conductive pattern of a first substrate has one or more bumps for electrical connection to the second substrate. The bump and the conductive pattern of the second substrate are bonded to each other with the conductive bond applied to the tip of the bump.

Abstract: An interpolation parallel AD converter is provided in which a switch is installed at each pre-amplifier in a first pre-amplifier array for selectively short-circuiting a portion between a comparison input end and a reference input end thereof, while a load transistor, a switch for selectively diode-connecting the load transistor, and a capacitor for keeping a voltage when the load transistor is diode-connected are installed in a pre-amplifier in a second pre-amplifier array. An offset occurring in each pre-amplifier in the first pre-amplifier array is suppressed by a compression effect of using a gain difference between a reset mode and an amplification mode.

Abstract: A high performance power detector not only suited for monolithic structures, small in size, low in cost, and suitabed for broadband high frequency operations, but also excellent in the linearity of the detection characteristic, having a small fluctuation of detection characteristic relative to the bias fluctuation, having a small fluctuation of detection characteristic relative to the FET threshold voltage fluctuation, and in addition having a small DC offset wherein an additional circuit is unnecessary even if the latter stage circuit has a balance input, and a demodulator using the same.