Abstract: An optical disk 101 is of a type in which information is recorded on a groove track, and an optical disk 107 is of a type in which information is recorded on a land track. The optical disk 101 has a control data area 102, and a data recording area 103 in which user data is recorded. The optical disk 107 has a control data area 108, and a data recording area 109 in which user data is recorded. A code for indicating the groove track or the land track onto which tracking servo control is executed is provided both in the control data area 102 of the optical disk 101, and in the control data area 108 of the optical disk 107.

Abstract: A method for rating an information recording medium according to the present invention includes the steps of: receiving a digital read signal, which has been generated based on an analog read signal representing information that has been read from the information recording medium, and shaping the waveform of the digital read signal; subjecting the shaped digital read signal to maximum likelihood decoding, thereby generating a binarized signal showing a result of the maximum likelihood decoding; and calculating the quality of the digital read signal based on the shaped digital read signal and the binarized signal. If the quality of the read signal is calculated by a PRML method in which a number of zero-cross portions are included in a merging path of a minimum difference metric, the quality is calculated by using only a state transition pattern in which only one zero-cross portion is included in a merging path of a non-minimum difference metric.

Abstract: A PLL clock generator generates an output signal with a frequency N times (where N?1) as high as that of an input signal. The clock generator includes: a frequency divider for dividing the frequency of a clock signal by N so as to output a frequency-divided clock signal; a phase comparator for detecting a phase difference between the input signal and the output signal of the frequency divider so as to output a phase difference signal including information representing the phase difference; a LPF for smoothing the phase difference signal; a VCO for generating the clock signal, of which the frequency is determined by the output of the LPF, and outputting the clock signal to the frequency divider; and a phase shifter for shifting the phase of the output signal of the frequency divider in accordance with the phase difference signal.

Abstract: A method and an apparatus of manufacturing an image displaying apparatus including an electron source substrate and a phosphor substrate. The electron source substrate is provided with an electron emitting element formed by covering with a container and by applying a voltage to an electronic conductor on the substrate. While, the phosphor substrate is provided with a phosphor thereon. The substrates are subjected to a getter processing and to a seal bonding process under a vacuum condition through a processing chamber, to complete an image forming apparatus. An improvement resides in miniaturizing and simplifying operation, and in greater manufacture speed and mass production.

Abstract: To suppress the time required for a startup of a recording/playback apparatus from unduly increasing even when there are both one type of disk in such that information is recorded on a groove track and other type of disk in such that information is recorded on a land track An optical disk is of a type in which information is recorded on a groove track, and an optical disk is of a type in which information is recorded on a land track. The optical disk has a control data area, and a data recording area in which user data is recorded. The optical disk has a control data area, and a data recording area in which user data is recorded. A code for indicating the groove track or the land track onto which tracking servo control is executed is provided both in the control data area of the optical disk, and in the control data area of the optical disk.

Abstract: A method and an apparatus for manufacturing an image displaying apparatus having a display panel. A first substrate of the display panel on which a phosphor exciter is disposed and a second substrate of the display panel on which phosphors emitting light by the phosphor exciter is provided, are prepared under a vacuum atmosphere. Then, the first and the second substrates are carried in a getter processing chamber or bake processing chamber, and getter processing or bake processing is applied thereto under the vacuum atmosphere. After the processing, the first and the second substrates are carried in a seal processing chamber, where the substrates are heat sealed under the vacuum atmosphere. Thus, reduction of vacuum exhaust time and a high vacuum degree in manufacturing an image displaying apparatus is attained and efficiency of manufacturing is improved.

Abstract: A method and an apparatus for manufacturing an image displaying apparatus having a display panel. A first substrate of the display panel on which a phosphor exciter is disposed and a second substrate of the display panel on which phosphors emitting light by the phosphor exciter is provided, are prepared under a vacuum atmosphere. Then, the first and the second substrates are carried in a getter processing chamber or bake processing chamber, and getter processing or bake processing is applied thereto under the vacuum atmosphere. After the processing, the first and the second substrates are carried in a seal processing chamber, where the substrates are heat sealed under the vacuum atmosphere. Thus, reduction of vacuum exhaust time and a high vacuum degree in manufacturing an image displaying apparatus is attained and efficiency of manufacturing is improved.

Abstract: A method of manufacturing an image display apparatus is provided and includes the steps of bringing panel members that constitute a display panel of the image display apparatus into a bake processing chamber, subjecting to bake processing the display panel members, lowering a temperature of the display panel members, and bringing the display panel members into a seal-bonding processing chamber. Seal-bonding processing is conducted by local heating to a seal-bonding portion.

Abstract: A wobble demodulator for reproducing digital information from an optical recording medium in which a track is formed in accordance with a wobble signal that is MSK-modulated so as to contain the digital information by a carrier signal with a predetermined frequency and a sine wave signal with a frequency different from that of the carrier signal, includes: a wobble signal detector for detecting a wobble signal of the track from the optical recording medium; a wobble PLL for detecting the carrier signal based on the wobble signal detected by the wobble signal detector; a multiplier for multiplying the carrier signal detected by the wobble PLL by the wobble signal detected by the wobble signal detector and outputting a multiplied output; a MSK detector for detecting a MSK modulation mark having a phase or a frequency different from that of the carrier signal, based on an integrated value obtained by integrating the multiplied output from the multiplier on a predetermined section basis; and a MSK synchronization

Abstract: A wobble demodulator for reproducing digital information from an optical recording medium in which a track is formed in accordance with a wobble signal that is MSK-modulated so as to contain the digital information by a carrier signal with a predetermined frequency and a sine wave signal with a frequency different from that of the carrier signal, includes: a wobble signal detector for detecting a wobble signal of the track from the optical recording medium; a wobble PLL for detecting the carrier signal based on the wobble signal detected by the wobble signal detector; a multiplier for multiplying the carrier signal detected by the wobble PLL by the wobble signal detected by the wobble signal detector and outputting a multiplied output; a MSK detector for detecting a MSK modulation mark having a phase or a frequency different from that of the carrier signal, based on an integrated value obtained by integrating the multiplied output from the multiplier on a predetermined section basis; and a MSK synchronization

Abstract: In a method of producing a spacer for a display apparatus by heat drawing a base glass material having a cross section with different dimensions in a longitudinal and lateral directions and then cutting into a desired length, a base glass material in which a high-viscosity glass material is combined on both ends of a low-viscosity glass material is drawn within a temperature range in which both glass materials have different viscosities. Such method avoids a deformation of the spacer such as an expansion or a rounding at the longitudinal ends in the cross section of the spacer or a constriction in an intermediate portion in the longitudinal direction.

Abstract: A spacer for an image display apparatus comprises a glass base member which contains SiO2 by 10 to 35 wt %, RO (R representing an alkali earth metal) by 20 to 60 wt %, B2O3 by 9 to 30 wt % and Sb2O3 by 0.01 to 5 wt %, thereby suppressing generation of a bubble, and improving spacer characteristics and a mechanical strength.

Abstract: An optical disc apparatus includes a recording section for recording new data on an optical disc so as to be continuous to data which is previously recorded on the optical disc; a detection section for detecting an amount of deviation between a position at which the previously recorded data is recorded and a position at which the previously recorded data should have been recorded; and an adjustment for adjusting a position at which the new data is to be recorded so that an amount of deviation between a position at which an end of the new data is to be recorded and a position at which the end of the new data should be recorded is smaller than the amount of deviation detected by the detection section.

Abstract: The present invention provides a method of manufacturing an image display device in which a panel member constituting a panel of an image display device is transferred to a plurality of processing chambers each comprising a temperature control unit, and subjected to a plurality of processing steps under temperature control. The pressure in each of the plurality of processing chambers is set to be not more than that of the previous processing chamber of the transfer process.

Abstract: A method and an apparatus for manufacturing an image displaying apparatus having a display panel. A first substrate of the display panel on which a phosphor exciter is disposed and a second substrate of the display panel on which phosphors emitting light by the phosphor exciter is provided, are prepared under a vacuum atmosphere. Then, the first and the second substrates are carried in a getter processing chamber or bake processing chamber, and getter processing or bake processing is applied thereto under the vacuum atmosphere. After the processing, the first and the second substrates are carried in a seal processing chamber, where the substrates are heat sealed under the vacuum atmosphere. Thus, reduction of vacuum exhaust time and a high vacuum degree in manufacturing an image displaying apparatus is attained and efficiency of manufacturing is improved.

Abstract: Disclosed is a technology for obtaining a large area fiber plate suited for downsizing a radiation imaging apparatus and reducing its cost and excellent of workability in the manufacturing process. A multi-fiber is manufactured by bundling and drawing a plurality of fibers to take a polygonal shape in section so that the multi-fibers can be air-tightly stacked without any air gap, a multi-fiber aggregate is manufactured by bundling and drawing the multi-fibers to take other polygonal shape in section that enables air-tight stacking with no air gap so as to be analogous to or different from the one polygonal shape in section, and there is manufactured a fiber plate configured by air-tightly bonding the multi-fiber aggregates to each other with a bonding agent without the air gap in a state of keeping the one or other polygonal shape in section after being drawn.

Abstract: A method for producing a flat panel display including a face plate portion and a rear plate portion opposite to each other, and a frame portion, includes a step of adhering a portion between the face plate and the rear plate while guiding by a jig. The jig functions as a guide such that the relative positions between the face plate and the rear plate are in a predetermined state at least in a direction within a plane of the plates, and movement in an interval direction of the face plate and the rear plate can be allowed.

Abstract: A method and an apparatus for manufacturing an image displaying apparatus having a display panel. A first substrate of the display panel on which a phosphor exciter is disposed and a second substrate of the display panel on which phosphors emitting light by the phosphor exciter is provided, are prepared under a vacuum atmosphere. Then, the first and the second substrates are carried in a getter processing chamber or bake processing chamber, and getter processing or bake processing is applied thereto under the vacuum atmosphere. After the processing, the first and the second substrates are carried in a seal processing chamber, where the substrates are heat sealed under the vacuum atmosphere. Thus, reduction of vacuum exhaust time and a high vacuum degree in manufacturing an image displaying apparatus is attained and efficiency of manufacturing is improved.

Abstract: A clock signal generation apparatus is provided for generating a clock signal synchronized with a wobble signal, which comprises an oscillation section for generating the clock signal, a counter section for generating a predetermined count value, a phase comparison section for integrating an amplitude value of the wobble signal over a predetermined interval specified based on the predetermined count value to obtain a first integrated value, and obtaining a phase difference value indicating a phase difference between the wobble signal and the clock signal based on the first integrated value, and a control signal generation section for generating a control signal based on the phase difference value, the control signal being used for controlling a frequency of the clock signal. The oscillation section adjusts the frequency of the clock signal based on the control signal.

Abstract: A method and an apparatus of manufacturing an image displaying apparatus having an electron source substrate and a phosphor substrate. The electron source substrate is provided with an electron emitting element formed by covering with a container and by applying a voltage to an electronic conductor on the substrate. While, the phosphor substrate is provided with a phosphor thereon. The substrates are subjected to a getter processing and to a seal bonding process under a vacuum condition through a processing chamber, to complete an image forming apparatus. An improvement resides in miniaturizing and simplifying operation, and in greater manufacture speed and mass production.