Abstract: A management system for a mining machine on which tires are mounted and which travels in a mine by operation performed by a driver includes: a determination unit configured to determine whether or not a damaging operation damaging the tires has been carried out; a data acquisition unit configured to acquire damaging operation data indicating carrying out of the damaging operation, and one or both of driver identification data indicating a driver who has carried out the damaging operation and position data indicating a position of the mining machine on which the damaging operation has been carried out; and a data output unit configured to output association data containing the damaging operation data associated with one or both of the driver identification data and the position data.

Abstract: A system for managing a mining machine is included in a mining machine that travels in a mine. The system includes: a positional information detecting unit configured to acquire positional information indicating a position of the mining machine; and a traveling path calculating unit configured to obtain, from each of a plurality of the mining machines, positional information about an actual traveling path on which each of the mining machines actually has traveled, and generate a reference traveling path in the mine with the obtained positional information.

Abstract: A system for managing a mining machine is included in a mining machine that travels in a mine. The system includes: a positional information detecting unit configured to acquire positional information indicating a position of the mining machine; and a traveling path calculating unit configured to obtain, from each of a plurality of the mining machines, positional information about an actual traveling path on which each of the mining machines actually has traveled, and generate a reference traveling path in the mine with the obtained positional information.

Abstract: A management system for a mining machine on which tires are mounted and which travels in a mine by operation performed by a driver includes: a determination unit configured to determine whether or not a damaging operation damaging the tires has been carried out; a data acquisition unit configured to acquire damaging operation data indicating carrying out of the damaging operation, and one or both of driver identification data indicating a driver who has carried out the damaging operation and position data indicating a position of the mining machine on which the damaging operation has been carried out; and a data output unit configured to output association data containing the damaging operation data associated with one or both of the driver identification data and the position data.

Abstract: There are provided: a demand forecasting section that calculates a demand forecast value of the power system as a whole; a supply planning section that calculates a planned supply value of the power system as a whole; a difference extraction section that finds the difference between said demand forecast value and planned supply value; an economic load allocation section of a distribution system that allocates the difference obtained by the difference extraction section with respect to control subjects provided in the distribution system, in accordance with a cost optimization technique; and a control section that outputs control amounts based on the allocated amounts obtained by the economic load allocation section of said distribution system to the control subjects.

Abstract: When the power of the write pulse is taken as the peak power and the power of the bottom pulse is taken as the bottom power, the power setting device (114) sets the power of each pulse in the recording pulse train such that the peak power PwN of the Nth information layer which is closest to the light entry surface of the optical recording medium (11), the bottom power PbN of the Nth information layer, the peak power PwM of the Mth information layer (where M is an integer such that N>M?1), and the bottom power PbM of the Mth information layer satisfy the following formula: PbN/PwN>PbM/PwM.

Abstract: When the power of the write pulse is taken as the peak power and the power of the bottom pulse is taken as the bottom power, the power setting device (114) sets the power of each pulse in the recording pulse train such that the peak power PwN of the Nth information layer which is closest to the light entry surface of the optical recording medium (11), the bottom power PbN of the Nth information layer, the peak power PwM of the Mth information layer (where M is an integer such that N>M?1), and the bottom power PbM of the Mth information layer satisfy the following formula: PbN/PwN>PbM/PwM.

Abstract: According to one embodiment, the relationship between respective fingers of a user and corresponding screens is registered, a screen and command are determined according to the motion (motion trajectory) of a finger that touches a touch input device and the type of the finger, and a multi-screen is operated.

Abstract: An optical recording medium that allows information to be recorded and played back properly, even when a type of recording medium in which information is recorded to grooves is used along with a type of recording medium in which information is recorded to lands, as well as a method for recording and playback with this medium. Recording track information is recorded in advance, indicating whether information is to be recorded in the grooves or the lands, whichever of the grooves and lands is best suited to the recording of information is selected on the basis of the recording track information that is read out, and the recording or playback of information is performed.

Abstract: An optical information recording medium includes a plurality of recording layers, a reflectance of at least one of the plurality of the recording layers in a non-initialized state with respect to a light beam for initialization being smaller than a reflectance of the same in an initialized state with respect to the light beam for initialization. The recording layers are initialized by irradiating, among the plurality of recording layers, the recording layer positioned farther from a light beam irradiation side with the light beam prior to irradiating the recording layer positioned closer to the light beam irradiation side, so that the initialized recording layers have no initialization irregularities.

Abstract: A multi pulse section 30 is generated in the mark forming portion corresponding to a mark 21 having a length nTw (n?=2), where Tw represents a reference clock cycle. The multi pulse section 30 consists of pulses of the number (n?1) each having the power level a, and pulses of the number (n?2) each having the power level b (b<a), each of which is formed between the adjoining pulses having the power level a. Further, a heat blocking pulse 35 having the power level c (c<a) is generated immediately after the multi pulse section 30. A bias section 36 having the power level d (c<d<a) is generated between the heat blocking pulse 35 and a succeeding multi pulse section 30. The bias section 36 corresponds to a space 22. The time length tc of the heat blocking pulse 35 is: tc?Tw. With this arrangement, information can be precisely recorded in and reproduced from a WORM type information recording medium.

Abstract: A substrate for an optical recording medium includes recording tracks formed in guide grooves on a disc and an address section having an address pit sequence formed between the recording tracks in the guide grooves along an information reading direction of the recording tracks. The recording tracks in the guide grooves are divided into a prescribed number of zones. In each of the zones, the center of the address section corresponding to a recording track in the radially outermost or radially innermost guide groove is disposed so as to shift in a radial direction of the disc in relative relationship to the center of the recording track in the guide groove.

Abstract: An optical recording medium of the present invention includes a substrate (202), a protection plate (205), and a plurality of information layers (203) sandwiched between the substrate and the protection plate. An information signal is recorded as a length of a mark and a length of a space between two marks. The mark is formed when the information layer is irradiated by light received through the substrate. The information layers have a management region (206) recording a leading edge recording condition and a trailing edge recording condition. The leading edge recording condition is used to change a recording start position for forming a leading edge of the mark. The trailing edge recording condition is used to change a recording end position for forming a trailing edge of the mark. Each of the leading and trailing edge recording condition is depending on which information layer is recorded.

Abstract: A method and an apparatus are provided, which enable a user's standby time to be shortened or utilized effectively in the course of recording/reproduction of information with respect to an optical disk. Information recorded on a disk is reproduced preferentially, and after counting for a predetermined period of time, recording learning is conducted. Alternatively, management information is reproduced preferentially over recording learning, and recording learning is conducted while a user is confirming this information. Alternatively, the possibility of recording on a disk is identified, and reproduction preference or recording learning preference processing is conducted based the possibility. Alternatively, a rotation speed of a disk is controlled to be variable or constant, based on the possibility of recording.

Abstract: An optical information recording medium includes a plurality of recording layers, a reflectance of at least one of the plurality of the recording layers in a non-initialized state with respect to a light beam for initialization being smaller than a reflectance of the same in an initialized state with respect to the light beam for initialization. The recording layers are initialized by irradiating, among the plurality of recording layers, the recording layer positioned farther from a light beam irradiation side with the light beam prior to irradiating the recording layer positioned closer to the light beam irradiation side, so that the initialized recording layers have no initialization irregularities.

Abstract: A plurality of optical heads each of which comprises an independent light source and optical system are provided on the same side with respect to a recording medium having a plurality of recording layers. Alternatively, with respect to at least one light source in an optical head having a single objective lens and a plurality of light sources, an optical path correction system is provided on an optical path unique to the light source, and while light emitted from one light source is focused on a specific recording layer by shifting of the objective lens, light irradiated from another light source is focused on another recording layer by the optical path correction system. Thus, information can be reproduced from or recorded in a plurality of recording layers simultaneously and an error in focusing of light onto the plurality of recording layers can be suppressed.

Abstract: The width W of the address pit (9) of an optical recording medium of intermediate address type is determined by W=k Tp/(?/NA) where ? is the laser wavelength of the optical head of the optical disk device use, NA is the numerical aperture of the objective, Tp is the track pitch of the record medium, and k is 0.40?k?0.68. Alternatively, an optical device comprises a first address demodulating circuit for demodulating address information by using a signal that is the sum of the electric signals outputted from a pair of photodetectors separated in the direction of the track and a second address demodulating circuit for demodulating address information by suing a signal that is the difference between the electric signals. The address is detected base on the information thus obtained.

Abstract: A method by which, in an optical disk recording and reproducing device, the time required for a test recording performed prior to an actual information recording can be reduced according to characteristics of an optical disk. A random pattern signal is transmitted from a random pattern signal generating circuit 3 and recorded on a test track on an optical disk 1, and a bit error rate of a reproduction signal is measured. Only when a value of the bit error rate is not less than a fixed value, test pattern signals are transmitted from a test pattern signal generating circuit 4 and recorded. An edge timing of a reproduction signal is measured by an edge timing detecting circuit 13. Based on a result of the measurement, edge positions of a front-end pulse and a back-end pulse are corrected.

Abstract: A plurality of optical heads each of which comprises an independent light source and optical system are provided on the same side with respect to a recording medium having a plurality of recording layers. Alternatively, with respect to at least one light source in an optical head having a single objective lens and a plurality of light sources, an optical path correction system is provided on an optical path unique to the light source, and while light emitted from one light source is focused on a specific recording layer by shifting of the objective lens, light irradiated from another light source is focused on another recording layer by the optical path correction system. Thus, information can be reproduced from or recorded in a plurality of recording layers simultaneously and an error in focusing of light onto the plurality of recording layers can be suppressed.

Abstract: An optical recording medium such as DVD has a data recording area (103) in which data can be rewritten and a write-once area (104) in which data can be written only once and not be erased. A medium specific ID (105) which is specific to an optical recording medium is recorded in the write-once area (104). In the data recording area (103), a reflectance ratio of a part where the data is recorded is different from a reflectance ratio in a part where the data is not recorded. A reflectance ratio of a recording pit formed in the write-once area (104) is higher than the higher one of the reflectance ratios in the part where the data is recorded and in the part where the data is not recorded in the data recording area (103). Data recoding in the write-once area (104) is performed by irradiating to the write-once area (104) a laser beam with heat amount of three to 25 times heat amount necessary for recording rewritable data in the data recording area (103).