Abstract: A communication control method for a mobile communication system having a plurality of mobile stations, a radio base station, and a radio control station comprises a measurement step, an evaluation step, and a control step. In the measurement step, a plurality of congestion parameters related to factors generating congestion is measured in a mobile communication system. In the evaluation step, the radio control station evaluates a congestion degree corresponding to each of the plurality of congestion parameters. In the control step, a communication setting between the radio base station and at least one of the plurality of mobile stations is controlled in accordance with a control instruction transmitted from the radio control station to the radio base station when at least one of the plurality of congestion degrees is a prescribed level or more.

Abstract: The present invention relates to a mobile communication system which includes a base station, a mobile station for performing a communication with the base station, and a radio network controller for controlling the communication between the base station and the mobile station. The mobile communication system comprises a controller configured to control a communication state of the communication between the base station and the mobile station according to a congestion state of an uplink.

Abstract: A communication control method includes the step of restricting the number of communication channels used dedicatedly by each of mobile stations or a resource of communication channels used dedicatedly by each of the mobile stations when both communication channel shared by the mobile stations and communication channels used dedicatedly by each of the mobile stations are simultaneously used in a mobile communication system.

Abstract: A base station, a mobile station, a radio communications system, and a radio transmission method are disclosed. The base station includes a control information determining unit configured to determine control information that includes a spreading factor, the number of chip repetitions, and a phase unique to the mobile station, based on at least one of information about the type of cell environments in which the mobile station is present, information about the number of mobile stations that are present in the cell, information about information rate required by the mobile station, information about a type of traffic, information about a radio parameter of the mobile station, information about a propagation path condition, and information about interference from an adjacent cell, and configured to transmit the spreading factor, the number of chip repetitions, and the unique phase of the mobile station that is determined to the mobile station.

Abstract: An information recording method has; a history determination step for determining whether or not a medium being cased and capable of being used for information recording and reproduction has previously been taken out from the case by using an identification section having historical information as to whether the medium has previously been taken out from the case or not; and a verification step for verifying correctness of information recorded always or on condition that a predetermined condition is satisfied when a result of the determination shows that the medium has previously been taken out from the case.

Abstract: An information recording method has;

Abstract: A disc cartridge includes a disc holder for supporting a recording medium. The disc holder includes a grip. A case defines a housing portion for receiving the disc holder and the recording medium. The case allows the disc holder with the recording medium to be inserted into and removed from the housing portion via an opening. The disk holder also includes a lock for securing the disc holder to the case at a position. The grip has side portions tapering from a bottom end to a top end of the grip, the top end of the grip having a smaller width than the bottom end of the grip. A cut of the upper case and a cut of the lower case are shaped to correspond with the taper of the side portions of the grip thereby facilitating smooth engagement of the grip and the cuts.

Abstract: A disc cartridge adaptor for housing a information storage disc and a disc holder. The disc cartridge adaptor includes: a case body including a housing portion for rotatably housing the disc, and an opening communicating with the housing portion for allowing insertion and removal of the disc holder and the disc. A lid is pivotably supported by the case body. The housing portion is able to house the disc together with the disc holder or without the disc holder. The lid includes a positioning member movable between a first position and a second position with respect to the lid. The positioning member is in the first position restricting the position of the disc within a predetermined range when the disc is housed in the housing portion without the disc holder, and retreats to the second position when the disc holder is housed in the housing portion.

Abstract: An information recording method has; a history determination step for determining whether or not a medium being cased and capable of being used for information recording and reproduction has previously been taken out from the case by using an identification section having historical information as to whether the medium has previously been taken out from the case or not; and a verification step for verifying correctness of information recorded always or on condition that a predetermined condition is satisfied when a result of the determination shows that the medium has previously been taken out from the case.

Abstract: An information recording method has; a history determination step for determining whether or not a medium being cased and capable of being used for information recording and reproduction has previously been taken out from the case by using an identification section having historical information as to whether the medium has previously been taken out from the case or not; and a verification step for verifying correctness of information recorded always or on condition that a predetermined condition is satisfied when a result of the determination shows that the medium has previously been taken out from the case.

Abstract: A disc case having a case main unit including an accommodation chamber for rotatably accommodating a disc having a signal recording surface on at least one side of the disc, support member access openings provided in the top and bottom walls of the accommodation chamber so that a chucking member can apply an external pressure to the disc, a head access opening formed in the top or bottom wall of the accommodation chamber and tangent to the side wall surface of the accommodation chamber so that a read/write head can read and/or record signals on the signal recording surface of the disc, and a concave portion formed in an area extending from the side wall surface at the head access opening to the front fringe portion of the case main unit and concave with respect to the top or bottom surface of the main unit of the case. The disc case also includes a shutter installed on the case main unit to cover the support member access openings, the head access opening and the concave portion when the shutter is closed.

Abstract: A disc cartridge in accordance with the present invention includes a disc holder for supporting a disc-shaped recording medium; and a case for receiving the disc holder and the recording medium. The disc holder includes at least one finger-shaped flexible member that extends from a side face of the disc holder and bends in the plane substantially parallel with top and bottom portions of the disc holder. The case further includes an opening and a member for engaging with the flexible member to secure the disc holder; and means for preventing an easy touch of a human finger on the flexible member to protect the disc holder from being easily released. Once the disc holder is housed in the case, part of the disc holder blocks the opening of the case.

Abstract: A disc cartridge in accordance with the present invention includes a disc holder for supporting a disc-shaped recording medium and a case defining a housing portion for receiving the disc holder and the recording medium. The case further includes a top portion, a bottom portion, and side portions surrounding the housing portion, the case allowing the disc holder to be inserted into and removed from the housing portion via an opening formed through the side portions. The disc holder includes a grip used for grasping the disc holder. Cuts are formed on the top and bottom portions of the case for exposing the grip when the disc holder is in the case. The grip engages the cuts to prevent the case from deforming outwardly when the disc holder is inserted into the case.

Abstract: An information recording method has; a history determination stop for determining whether or not a medium being cased and capable of being used for information recording and reproduction has previously been taken out from the case by using an identification section having historical information as to whether the medium has previously been taken out from the case or not; and a verification step for verifying correctness of information recorded always or on condition that a predetermined condition is satisfied when a result of the determination shows that the medium has previously been taken out from the case.

Abstract: An information recording method has; a history determination step for determining whether or not a medium being cased and capable of being used for information recording and reproduction has previously been taken out from the case by using an identification section having historical information as to whether the medium has previously been taken out from the case or not; and a verification step for verifying correctness of information recorded always or on condition that a predetermined condition is satisfied when a result of the determination shows that the medium has previously been taken out from the case.

Abstract: A disk cartridge of the present invention comprises a case body (101) having a disk-storage portion and an opening/closing cover (201) having a pair of disk holding members (202) that hold a disk (10) in its inplane direction. The accommodated disk (10) is loaded together with the opening/closing cover (201) into an adapter having compatibility with a large disk cartridge. Thus, information can be, for example, reproduced from the disk (10) in a drive unit designed for a large disk cartridge via the adapter. Moreover, a series of operations can be conducted without touching the disk directly.

Abstract: A disc cartridge in accordance with the present invention includes a disc holder for supporting a disc-shaped recording medium and a case defining a housing portion for receiving the disc holder and the recording medium. The case further includes a top portion, a bottom portion, and side portions surrounding the housing portion, the case allowing the disc holder to be inserted into and removed from the housing portion via an opening formed through the side portions. The disc holder includes a grip used for grasping the disc holder. Cuts are formed on the top and bottom portions of the case for exposing the grip when the disc holder is in the case. The grip engages the cuts to prevent the case from deforming outwardly when the disc holder is inserted into the case.

Abstract: An information recording method has;

Abstract: A cartridge for housing a recording medium therein. The cartridge includes a cartridge body configured such that a signal recording apparatus can record a signal onto the recording medium when the cartridge is loaded in the signal recording apparatus. The cartridge also includes an opening in the cartridge body for removing the recording medium from the cartridge body, and a cover covering the opening. An indicator on the cartridge body indicates whether the cover has ever been opened or removed from the cartridge body.

Abstract: A cartridge for housing a recording medium therein. The cartridge includes a cartridge body configured such that a signal recording apparatus can record a signal onto the recording medium when the cartridge is loaded in the signal recording apparatus. The cartridge also includes an opening in the cartridge body for removing the recording medium from the cartridge body, and a cover covering the opening. An indicator on the cartridge body indicates whether the cover has ever been opened or removed from the cartridge body.