摘要:
An optical information recording/reproducing apparatus for optically recording/reproducing information by irradiating a track on a recording medium with a light comprises: a detecting circuit, a tracking error signal producing circuit, and a tracking control circuit. The detecting circuit selectively detects a circular area having a diameter smaller than a diameter of a light beam reflected from the recording medium and obtains an output signal corresponding to the detected circular area. The tracking error signal producing circuit produces, from the output signal of the detecting circuit, a tracking error signal indicating a shift in a position of a light beam irradiated on the recording medium in a track width direction. The tracking control circuit controls an irradiation position of a light beam irradiated on the recording medium in the track width direction based on the tracking error signal.
摘要:
In a case where tracking control is carried out by a lens actuator in performing a tracking pull-in operation in which tracking control is started in the state where tracking control is out of operation, the tracking control circuit brings control into stable tracking control by moving the light spot onto a groove on the optical disc. After that, when tracking onto a land is needed, the tracking control circuit moves the light spot onto the land. This enables a pull-in action toward a stable tracking operation.
摘要:
An RSSI detector 2 detects the electric field level of a received signal, and a transmission rate determiner 5 determines an initial transmission rate value from the detected electric field level. A radio unit 1 transmits the determined initial value to a base station 20. In response thereto, the base station 20 transmits a control signal at the assigned initial transmission rate value. A bit error rate value detector 4 detects a bit error rate of the control signal, and a transmission rate determiner 5 finely regulates the initial value according to the detected bit error rate. An optimal transmission rate is thus determined.
摘要:
First and second beam splitters are arranged on the optical path of a light beam emerging from a recording surface, and such that the phases and amplitudes of the respective polarized light components of a light beam incident thereon are changed to equal extends. As a result of this arrangement, the state of polarization beam of the light beam emerging from the recording surface is maintained when a light beam is outputted through the two beam splitters. Stable reproduction signals and servo control signals for focusing, tracking, and the like can be reliably supplied by utilizing an apparatus of this invention.
摘要:
A vacuum processing apparatus, including a reactor and a partitioning plate having a plurality of through-holes through which radicals are allowed to pass and separating the reactor into a plasma generating space and a substrate process space, the process, such as a film deposition process, being carried out on a substrate placed in the substrate process space by delivering a gas into the plasma generating space for generating a plasma, producing radicals with the plasma thus generated, and delivering the radicals through the plurality of through-holes on the partitioning plate into the substrate process space. The partitioning plate includes a partitioning body having a plurality of through-holes and a control plate disposed on the plasma generating space side of the partitioning body and having radical passage holes in the positions corresponding to the plurality of through-holes on the partitioning plate.
摘要:
A box for an image reading apparatus, the box comprising a box body and a reinforcing member, the box body comprising a rectangular frame and a base plate fixed to the rectangular frame, and the reinforcing member being attached to the box body. The reinforcing member has a downwardly drawn area, upwardly drawn areas which are adjacent to the downwardly drawn area on front side and rear side for placing a reading block without interfering with the movement of an original document scanning unit and a cutout portion for disposing at least an image processing unit formed from the downwardly drawn area to end-of-scan side in the subscanning direction of the box body. An image reading apparatus having reduced thickness is provided by employing this box. An image forming apparatus in which height position of the image reading apparatus is set to such a height position that allows easy operation is provided.
摘要:
A composition for external use capable of more efficiently deriving the effect of purine substances (and/or salts thereof) including (A) sugar; and (B) at least one member selected from the group consisting of purine substances and salts thereof.
摘要:
A film-forming system comprising a vacuum chamber and an electroconductive partition plate dividing said vacuum chamber into a plasma generating space provided with a high-frequency electrode and a film-forming treatment space provided with a substrate-retaining mechanism for holding a substrate mounted thereon. A gas for generating desired active species by discharge plasma is introduced into the plasma generating space. Said desired active species are supplied to the film-forming treatment space through a plurality of penetration holes formed in the electroconductive partition plate for communicating the plasma generating space with the film-forming treatment space. Said electroconductive partition plate has a first internal space separated from the plasma generating space and communicating with the film-forming treatment space via a plurality of material gas diffusion holes. A material gas is introduced from the outside into said first internal space and supplied into the film-forming treatment space through a plurality of said material gas diffusion holes. Said electroconductive partition plate further has a second internal space separated from said first internal space and communicating with said film-forming treatment space via a plurality of gas diffusion holes. A gas other than said material gas is introduced from the outside into said second internal space. A film is deposited on the substrate by a reaction between said active species and said material gas supplied to said film-forming treatment space.
摘要:
A dividing plate for a thin-film deposition apparatus divides the interior of the vacuum reaction chamber into a plasma discharge space and a film deposition process space, by fixing or connecting a plurality of laminated plates together by securely bonding them over the entire area of their interfacial surfaces, or a large portion thereof.
摘要:
The present invention provides a human β-defensin secretion promoter that can be used in various forms, such as external preparation, internal preparation, food, etc., and promotes human β-defensin secretion. An organic acid has an effect of promoting the secretion of human β-defensin, particularly human β-defensin-2, and therefore the organic acid is used as an active ingredient of a human β-defensin secretion promoter. Furthermore, by adding the human β-defensin secretion promoter to external preparations, internal preparations, or foods, a human β-defensin secretion promotion effect can be imparted thereto.