摘要:
A signal processing unit that generates data signals for controlling gray-scale levels of electro-optical elements includes a first D/A conversion unit that generates gray-scale signals from gray-scale data for designating the gray-scale levels of the electro-optical elements; a storage unit that stores correction data indicating correction values with respect to the gray-scale signals; a second D/A conversion unit that has resolution different from that of the first D/A conversion unit, and that generates correction signals from the correction data stored in the storage unit; and a synthesizing unit that synthesizes the gray-scale signals generated by the first D/A conversion unit with the correction signals generated by the second D/A conversion unit to generate the data signals.
摘要:
A signal processing unit that generates data signals for controlling gray-scale levels of electro-optical elements includes a first D/A conversion unit that generates gray-scale signals from gray-scale data for designating the gray-scale levels of the electro-optical elements; a storage unit that stores correction data indicating correction values with respect to the gray-scale signals; a second D/A conversion unit that has resolution different from that of the first D/A conversion unit, and that generates correction signals from the correction data stored in the storage unit; and a synthesizing unit that synthesizes the gray-scale signals generated by the first D/A conversion unit with the correction signals generated by the second D/A conversion unit to generate the data signals.
摘要:
A data transfer control device and electronic equipment that make it possible to implement high-speed data transfer with reduced overhead processing of firmware and smaller hardware. A data transfer control device that conforms to the IEEE 1394 standard comprises an arbitration circuit that permits firmware (FW) transfer after the completion of one transaction (or one packet transfer) in the continuous packet transfer, if the CPU issues an FW transfer start command during the execution of continuous hardware transfer (HW transfer) processing by a SBP-2 core. If HWStart and FWStart signals go active together, the FW transfer has priority. A header area in RAM is divided into an ordinary header area and an HW header area, and an address generation circuit switches between generating addresses for the ordinary header area and addresses for the HW header area, based on an HWDMARun signal from the arbitration circuit. A data area in RAM is divided into an ORB area and a stream area for the SBP-2 core.
摘要:
To correct brightness by measuring with accuracy and high speed variation of the brightness between pixels of an organic EL display. A first correction data memory stores a first correction data Dhy in a row direction, and a second correction data memory stores second correction data Dhx in a column direction. A first operation circuit generates a pixel correction data DH based on the first correction data Dhy and the second correction data Dhx. The pixel correction data DH is stored into a pixel correction data memory. Input gray scale data Din is corrected by the pixel correction data DH to output as output gray scale data Dout.
摘要:
The object is to provide a thermal print head that can absorb an expansion due to difference of thermal expansion coefficients of a ceramic substrate and a glass-epoxy based printed circuit board to enable to obtain excellent printing quality, to be high in reliability, and to be capable of downsizing. For this, a thermal print head is constituted to comprise a base provided with heat-generating resistors, a printed circuit board disposed in close proximity to the base, a semiconductor element for driving that is mounted on the base or the printed circuit board and electrically connected to the base and the printed circuit board, and a sealing-member that seals the semiconductor element for driving and includes a hard seal portion consisting of hard sealing-material and a soft seal portion consisting of soft sealing-material more flexible than the hard sealing-material, wherein the hard seal portion is disposed on the base, and the soft seal portion is disposed extended on the base and the printed circuit board.
摘要:
A light source apparatus excites an electrodeless lamp bulb with energy of microwaves generated from a magnetron. A microwave transmission line is improved so that microwaves can be transmitted efficiently and the light source apparatus can be miniaturized. A first cylindrical member is disposed coaxially with a direction in which microwaves generated from the magnetron are transmitted, and a second cylindrical member is disposed at the center of the first cylindrical member, thereby forming a coaxial transmission line. A coaxial oscillator is formed from the position at which the microwaves are generated to a position of 1/4 of the wavelength of the microwave. Thus, a special waveguide can be removed.
摘要:
One kind of housing has been formed for rear projection televisions of each screen size in inches and it has not been possible to change the size in inches for such a housing. This has reduced productivity and results in a cost increase. An upper cabinet and a lower cabinet of a rear projection television are formed separately. A screen and a mirror are provided on the upper cabinet. A main component portion for a television comprising video devices, driving and control circuits, an optical unit including a projection lens, and a light source is provided on the lower cabinet. Upper cabinets of different screen sizes in inches are assembled with a common lower cabinet to allow rear projection televisions of various sizes in inches to be easily manufactured.
摘要:
This invention relates to a process for papermaking which comprises forming a sheet in the presence of a neutral sizing agent and optionally a filler using as a paper quality improver a cationic polymer which is prepared by copolymerizing an acrylamide compound of the formula:CH.sub.2 .dbd.C(R.sub.1)CONH.sub.2wherein R.sub.1 is hydrogen atom or methyl group, and an inorganic or organic acid salt of a diallylamine compound of the formula:�CH.sub.2 .dbd.C(R.sub.2)CH.sub.2 !.sub.2 N--R.sub.3wherein R.sub.2 is hydrogen atom or methyl group, R.sub.3 is hydrogen atom or an alkyl having 1 to 6 carbon atoms, in the presence or absence of a vinyl monomer copolymerizable with said acrylamide compound and/or said diallylamine compound salt.When the above paper quality improver is used, the yield per each additive particularly in case of neutral or alkaline papermaking is excellent and hence the sizing properties are sufficiently given, and there can be obtained a paper having sufficiently improved paper strength.
摘要:
An electrolytic solution for a lithium secondary battery is provided, which comprises: an electrolyte; an organic solvent; and an additive, wherein the additive is an aromatic nitrogen-containing heterocyclic compound such as pyrazine, quinoxaline, indole, phenazine, phthalazine, pyrimidine, or a mixture thereof.
摘要:
A laser cutting apparatus is disclosed which includes a laser emitter capable of outputting a laser beam in pulses, a laser beam irradiation member, and a dental-crown polishing and washing member. The dental-crown polishing and washing member has an injection member through which air, water and polishing material are output toward a laser-beam-irradiated surface. A control member is provided which is capable of controlling the operation of laser emitter and dental-crown polishing and washing member. The laser beam irradiation member and injection member are combined with each other by means of an adapter disposed therebetween, thereby enabling both of laser beam irradiation member and injection member to be held and operated by a single hand. By employing this laser cutting apparatus, a high-energy laser beam can be used in the medical and dental fields for removing soft dentin to form a cavity. This apparatus does not have problems due to irradiation of a high-energy laser beam, such as the production and residue of a carbonized layer in the dentin, formation of a fused layer in the dentin, occurrence of a cavity margin having an irregular configuration, and cracking and damaging of the dental pulp attributed to a temperature rise.