Abstract: An information recording medium includes a disk information area; a user area including a plurality of sectors; and a spare area including at least one sector which, when at least one of the plurality of sectors included in the user area is a defective sector, is usable instead of the at least one defective sector. The spare area is located radially inward from the user area. A physical sector number of a sector to which a logical sector number “0” is assigned, among the plurality of sectors included in the user area and the at least one sector included in the spare area, is recorded in the disk information area.

Abstract: An editing apparatus edits management information including a reproduction procedure of a video stream having sets of picture data. A reproducing apparatus reproduces the video stream based on the management information. The video stream and the management information are prerecorded on a digital recording medium. In the editing apparatus, receiving unit receives user edit information specifying a part to be edited in the reproduction procedure. Generating unit generates a new reproduction procedure by editing the specified part, generating new management information. Attaching unit attaches entry information marking the new reproduction procedure at which editing was performed according to the user's intention, to the new management information. Recording unit records the new management information with the entry information onto the digital recording medium. In the reproduction apparatus, collecting unit collects section information featuring each section separated by the entry information.

Abstract: A thin film magnetic head ncludes a three-step configuration including deep and shallow groove surfaces, a super shallow groove surface, and an air bearing surface, and also, island-shaped center rail is provided in the center of the air outflow end of the disk-facing air bearing surface having a boundary on the surface of base alumina between a head element portion and a substrate, without including the surface of the substrate. Further, by providing in the surface of the substrate the super shallow groove surface shallower than a shallow groove surface, an alumina recession between the surface of the substrate and the head element portion, produced in a shallow dual step sub ambient slider, can be eliminated. Magnetic spacing between the head of the head element portion and the magnetic layer of the disk can be thereby reduced.

Abstract: In the plasma processing device which utilizes a low pressure arc discharge, a method for efficiently capturing and removing electrically charged particles and neutral particles having no charge which are at most 5 &mgr;m in particle diameter is demanded. The electrically charged particles can be captured efficiently by installing an electric field filter in a transportation course of plasma. The electric field filter has a cylindrical structure which is uneven in inner wall shape. A voltage in the range of 10 to 90 V is applied to the electric field filter. The neutral filters can be captured efficiently by installing a neutral filter having an opening sectional area which is at most 40% of a sectional area of the transportation course.

Abstract: An information recording medium includes a data recording area for recording data; a first drive information area for recording first drive information: and a second drive information area for recording second drive information. The first drive information and the second drive information each include a plurality of recording and reproduction conditions, and the plurality of recording and reproduction conditions each define an operation condition of an information recording and reproduction apparatus, which can have the information recording medium mounted thereon, for recording and reproducing the data. The plurality of recording and reproduction conditions are arranged in the order of time at which the plurality of recording and reproduction conditions are recorded.

Abstract: A plasma processing device include a plasma generation unit for generating plasma by using a cathodic arc discharge, first and second magnetic field ducts arranged in a row for transporting the plasma with one end of the row being connected to the plasma generation unit and a processing chamber connected to the other end of the row unit and having a stage for holding a substrate to be processed. A shutter is provided for covering the plasma during a period of a predetermined time after start of arc discharge or during a period of predetermined time before end of arc discharge. The shutter is disposed between the first magnetic field duct and the substrate to be processed, and is movable. The shutter is capable of being supplied with a voltage, and is kept in a state so as to be electrically insulated from the processing chamber.

Abstract: A method for producing an oxide cathode including a sleeve containing a heater coil, a cathode substrate provided on one end of the sleeve, and an emissive material layer formed by thermally decomposing an alkaline earth metal carbonate layer adhered onto the cathode substrate, which method includes adhering the alkaline earth metal carbonate onto the cathode substrate so that it has a bulk density of 0.5 to 0.8 g/cm3, then pressing it so that the bulk density becomes not more than 0.9 g/cm3, and then thermally decomposing it in vacuum. Accordingly, an oxide cathode in which the current density distribution of emission electrons is smooth and an electron emission characteristic is not deteriorated when operated for a long time is realized, and a method for producing a cathode-ray tube with high resolution in which moire is invisible is provided.

Abstract: An information recording medium includes a disk information area; a user area including a plurality of sectors; and a spare area including at least one sector which, when at least one of the plurality of sectors included in the user area is a defective sector, is usable instead of the at least one defective sector. The spare area is located radially inward from the user area. A physical sector number of a sector to which a logical sector number “0” is assigned, among the plurality of sectors included in the user area and the at least one sector included in the spare area, is recorded in the disk information area.

Abstract: An information recording medium includes a data recording area for recording data; a first drive information area for recording first drive information; and a second drive information area for recording second drive information. The first drive information and the second drive information each include a plurality of recording and reproduction conditions, and the plurality of recording and reproduction conditions each define an operation condition of an information recording and reproduction apparatus, which can have the information recording medium mounted thereon, for recording and reproducing the data. The plurality of recording and reproduction conditions are arranged in the order of time at which the plurality of recording and reproduction conditions are recorded.

Abstract: A host system used in combination with a driving apparatus for recording information on an information recording medium and reading information recorded on the information recording medium. The host system includes an instruction generation section for generating an instruction including designation information designating an operation type of an operation to be performed by the driving apparatus, and advanced notice information indicating whether the operation type of an operation immediately subsequent to the operation designated by the designation information is the same as the operation type of the operation designated by the designation information; and an output section for outputting the instruction to the driving apparatus. The operation type is either one of a recording operation of recording information on the information recording medium or a reading operation of reading information recorded on the information recording medium.

Abstract: An information recording medium includes a disk information area; a user area including a plurality of sectors; and a spare area including at least one sector which, when at least one of the plurality of sectors included in the user area is a defective sector, is usable instead of the at least one defective sector. The spare area is located radially inward from the user area. A physical sector number of a sector to which a logical sector number “0” is assigned, among the plurality of sectors included in the user area and the at least one sector included in the spare area, is recorded in the disk information area.

Abstract: An information recording medium includes a disk information area; a user area including a plurality of sectors; and a spare area including at least one sector which, when at least one of the plurality of sectors included in the user area is a defective sector, is usable instead of the at least one defective sector. The spare area is located radially inward from the user area. A physical sector number of a sector to which a logical sector.number “0” is assigned, among the plurality-of sectors included in the user area and the at least one sector included in the spare area, is recorded in the disk information area.

Abstract: An information recording medium includes a disk information area; a user area including a plurality of sectors; and a spare area including at least one sector which, when at least one of the plurality of sectors included in the user area is a defective sector, is usable instead of the at least one defective sector. The spare area is located radially inward from the user area. A physical sector number of a sector to which a logical sector number “0” is assigned, among the plurality of sectors included in the user area and the at least one sector included in the spare area, is recorded in the disk information area.

Abstract: A control program for controlling an operation of a microprocessor includes a concealed program recoverable by a data scramble circuit and a non-concealed program.

Abstract: An information recording medium comprises a user area, and a spare area including a replacement area, wherein the replacement area may be used instead of a defective area in the user area. The user area and the spare area include a plurality of sectors. Each of the plurality of sectors includes a user data area for recording user data, and an attribute data area for recording defect replacement allowance attribute data. The defect replacement allowance attribute data indicates whether recording of the user data has been executed in a state that the execution of a defect replacement process is allowed. In the defect replacement process, the defective area in the user area is replaced with the replacement area in the spare area.

Abstract: A method for producing an oxide cathode including a sleeve containing a heater coil, a cathode substrate provided on one end of the sleeve, and an emissive material layer formed by thermally decomposing an alkaline earth metal carbonate layer adhered onto the cathode substrate, which method includes adhering the alkaline earth metal carbonate onto the cathode substrate so that it has a bulk density of 0.5 to 0.8 g/cm3, then pressing it so that the bulk density becomes not more than 0.9 g/cm3, and then thermally decomposing it in vacuum. Accordingly, an oxide cathode in which the current density distribution of emission electrons is smooth and an electron emission characteristic is not deteriorated when operated for a long time is realized, and a method for producing a cathode-ray tube with high resolution in which moire is invisible is provided.

Abstract: An information recording disc having a burst cutting area (BCA) for recording control information for a reproducing apparatus by removing a reflective layer of the disc in a striped shape and a data recording area for recording user data, wherein the burst cutting area includes at least one BCA control information area and the BCA control information area comprises: an application identifier area for identifying applications of control data; a data length area for indicating data length of the control data; and an application specific data area for recording the control data, and an information reproducing drive for reproducing data from the information recording disc.

Abstract: An information recording medium includes a disk information area; a user area including a plurality of sectors; and a spare area including at least one sector which, when at least one of the plurality of sectors included in the user area is a defective sector, is usable instead of the at least one defective sector. The spare area is located radially inward from the user area. A physical sector number of a sector to which a logical sector number “0” is assigned, among the plurality of sectors included in the user area and the at least one sector included in the spare area, is recorded in the disk information area.

Abstract: An information recording medium includes a disk information area; a user area including a plurality of sectors; and a spare area including at least one sector which, when at least one of the plurality of sectors included in the user area is a defective sector, is usable instead of the at least one defective sector. The spare area is located radially inward from the user area. A physical sector number of a sector to which a logical sector number “0” is assigned, among the plurality of sectors included in the user area and the at least one sector included in the spare area, is recorded in the disk information area.

Abstract: An information recording medium includes a disk information area; a user area including a plurality of sectors; and a spare area including at least one sector which, when at least one of the plurality of sectors included in the user area is a defective sector, is usable instead of the at least one defective sector. The spare area is located radially inward from the user area. A physical sector number of a sector to which a logical sector number “0” is assigned, among the plurality of sectors included in the user area and the at least one sector included in the spare area, is recorded in the disk information area.