Abstract: An information editing apparatus is provided which can prevent a thumbnail image, which shows the contents of recorded information recorded on an information recording medium, from being accidentally changed by a misoperation of the user. The information editing apparatus includes a deciding device 8 for deciding whether a thumbnail image can be changed or not based on change permission information, which indicates whether a change can be made on the thumbnail image showing the contents of recorded information recorded on a recording medium 1. When the deciding device 8 decides that a change is not permitted, a change of the thumbnail image is prohibited.

Abstract: An information editing apparatus is provided which enables the user to clearly recognize the contents of recorded information which includes image information and is recorded on a recording medium. The information editing apparatus includes a first selecting device 14 for selecting a thumbnail image from images corresponding to the image information, the thumbnail image showing the contents of the recorded information recorded on a recording medium 1, a second selecting device 14 for selecting the thumbnail image from images other than the images corresponding to the image information in the recorded information, and a recording device 8 for recording first position information and second position information on the recording medium 1. The first position information indicates on the recording medium 1 the recording position of image information corresponding to the image selected by the first selecting device 14.

Abstract: An information recording apparatus is provided whereby in the reproduction of broadcasting information, the broadcasting information can be recorded so that the combination and so on of contents included in the broadcasting information can be recognized without the need for reproducing the broadcasting information itself. An information recording apparatus for recording broadcasting information constituted of a packet which has a predetermined amount of information and includes different types of contents, each type including one or more contents, the apparatus including a controller 8.

Abstract: A controller of a recording device issues a secure command to a storage device, and then waits the time estimated necessary for the storage device to execute the secure command before issuing the next secure command. When a controller of the storage device is executing the previous command, it notifies the recording device of being in process. When the previous command has been completed normally, the controller moves to the next process. Information for estimating the execution time of the command is obtained from the storage device in advance.

Abstract: A technology is provided to improve tamper resistance in encrypting data to be secured and inputting/outputting the data between a recording device and a host device. When the recording device issues an input/output command to a storage device to input/output data to be secured, the recording device attaches an ID to the command to identify to which cryptographic input/output processing the command belongs. Upon reception of a sequence command, the storage device receives the command if its ID has been allocated and the command is verified to have been issued in the correct sequence. The sequence ID is used to identify a process system while appropriately managing the steps of executing commands.

Abstract: A decryption processing unit (1516) decrypts encrypted content data using a license key Kc. When an elapsed time after reception of the license key (Kc) does not exceed a hold time at a time of the license key (Kc) included in reproduction control information (ACp), reproduction of encrypted content data continues. When the elapsed time exceeds the hold time at a time, the license key (Kc) is discarded, and a reproduction control unit (1514) again obtains a license key (Kc) from a memory card (110). Discarding and reobtaining license key (Kc) continues until an allowable output count of license key (Kc) from the memory card (110) becomes zero. As a result, a reproduction time of encrypted content data can be controlled safely.

Abstract: A recording area of a hard disk is managed “unit” by “unit” where a “unit” is constituted by physically continuous recording regions having predetermined size, and usage status of the unit is stored in an allocation unit (AU) management table. Data requiring a real time processing is stored unit by unit. When the usage status of the unit is changed or modified due to the recording or deletion of data, the AU management table is updated and then information indicative of the fact that the AU management table has been updated is recorded. An apparatus where the final change is made is detected at the time the hard disk is inserted or a file system is initialized. And if the apparatus which last made the change adopts the file system which does not use the AU management table, then the table is reconfigured so as to retain the consistency of the AU management table.

Abstract: A wiring substrate comprises a mount portion for mounting a semiconductor chip thereon, a plurality of external terminals to be connected to external electrodes, and a plurality of substrate wires each connected to a respective one of the plurality of external terminals. Each of the plurality of substrate wires includes a plurality of electrode connection portions to be connected to electrodes formed on the surface of the semiconductor chip.

Abstract: A log region of a memory card includes a plurality of log entries and a plurality of administration information storage units. Each of the plurality of log entries includes a license ID region, a Ks2w region, a status region and a KPcmy region. The status region includes a ST1 region and a ST2 region to store the communication status. The license ID region stores a license ID. The Ks2w region stores a session key. The KPcmy region stores a class public encryption key of a memory card. The administration information storage unit stores the last record sequence number corresponding to the log entry storing history information of the latest communication.

Abstract: The computer system includes a host system, a recording medium, and a digital signal decoder connected to the host system and the recording medium. The digital signal decoder receives M-bit data and generates an N-bit code word from the M-bit data. The number of consecutive bits of 1 in the code word is not larger than a first predetermined number K, and the number of consecutive bits of 0 is not larger than a second predetermined number L. When data is recorded/reproduced by a method such as NRZI (Non-Return to Zero Inverted), or the like, there is a defect in that the number of transitions of data is larger in a code with a high data encoding rate, and the run length of zero is long thereby increasing the data decoding error rate with the recording/reproducing of data. In the digital signal decoder according to the present invention, any code word includes at most 3 consecutive bits of 1, and at most 11 consecutive bits of 0, so that the data decoding error rate can be reduced.

Abstract: A spring-actuated electromagnetic brake includes a noise-suppressing device for suppressing a striking noise emitted when an armature is attracted onto a field to release the brake when an electromagnetic coil is excited to magnetize the field. The noise-suppressing device is comprised of a plurality of hemispherical elastic members each disposed in one of recesses formed in one of two opposed surfaces of the field and the armature. When the brake is in the engaged state, a hemispherical surface of each elastic member partially projects from the recess and is in contact with the other of the two opposed surface. When subjected to a compressive force or pressure applied from the armature, the hemispherical elastic member undergoes elastic deformation as a whole and does not produce any locally concentrated elastic deformation. The hemispherical elastic member is highly durable and is able to greatly suppress the striking noise generated when the brake is released.

Abstract: A spring-actuated electromagnetic brake includes an adjustment plate attached a rotating shaft and having an annular recess in one end face thereof facing a boss of a brake plate slidably mounted on the rotating plate. An annular elastic member is disposed in the annular recess in such a manner that when the brake is in the released state, the elastic member partially projects from the recess and is in contact with an end face of the boss. A slide-distance adjustment bolt having an enlarged head and a thread-free shank of a length larger than the thickness of the adjustment plate extends through an opening of the adjustment plate and is threaded on the end face of the boss. The brake plate is slidable in one direction by the force of the brake spring and in the opposite direction by the recovery force of the elastic member. The range of sliding movement of the brake plate is determined by the difference between the length of the shank of the bolt and the thickness of the adjustment plate.

Abstract: A method mold for producing a semiconductor device having a heat-sinking plate and a leadframe. The heat-sinking frame and leadframe are precisely positioned on a lower mold with cooperating positioning holes and pins with a space between the heat-sinking frame and the leadframe. After an upper mold is clamped to the lower mold, resin is injected into a cavity in the mold to encapsulate the leadframe to which a semiconductor chip is attached and the heat-sinking plate into one body.

Abstract: In a laser beam machine tool, the problems of power losses, misalignment, high cost, and other problems associated with moving laser heads are eliminated by using a five-axis table in which a biaxial work holder, capable of rotating and tilting a workpiece is mounted on a three-axis table mechanism. In the three-axis table mechanism, an X-axis table is supported on linear motion bearings in overlapping relationship on a Y-axis table, which is, in turn, supported on linear motion bearings on a vertically movable Z-axis table, which is also supported in linear motion bearings. The X-axis, Y-axis and Z-axis tables are driven by servo motors through ball screws so that backlash is avoided.

Abstract: In a workpiece support for use with a laser beam machine tool, in which the workpiece is rotated about an axis tiltable through 90.degree. or more to either side of a vertical condition, the workpiece is held by a chuck driven through a right-angle speed reducer by a servomotor. The chuck, reducer and motor are all supported on a shaft rotatably mounted in bearings on a frame. The shaft is coupled to a disc having angle markings and lockable at discrete rotational positions on the frame. Fine adjustment of the rotational position of the shaft relative to the disc is effected by engagement of an offset protrusion on the end of the shaft by a screw-shifted operating member on the disc. Two such operating members are provided in opposed relationship on opposite sides of the protrusion so that they can be used to lock the shaft and disc securely together.

Abstract: A work rotating apparatus for laser machining has a reduction unit with input and output shafts, and a motor for rotating the input shaft. The output shaft is a hollow shaft having an axial through hole. A work holder, mounted on the output shaft, also has a through hole aligned with the through hole of the output shaft. A long workpiece can be held in the work holder with a part of the workpiece extending through the through hole of the work holder and into or through the through hole of the hollow output shaft. This enables the workpiece to be held more stably and securely, and allows the portion of the workpiece which is being machined to be positioned close to the work holder.In one version, the reduction unit is supported by mounting legs, enabling the work to be positioned close to the laser machine table and farther from the laser head.

Abstract: A work rotating apparatus, for use in conjunction with a laser machine tool, comprises a frame, a rotatable shaft mounted on the frame for rotation on an axis, and a work mounting chuck supported by the shaft. A first disc is fixed to and rotates with the shaft. A second, stationary, disc is mounted on the frame in opposed relation to the rotatable disc. Recesses, formed on one of the discs, are positioned in circumferentially spaced relationship to one another, in a circle centered on the axis of the rotatable shaft. A spring-loaded ball detent is provided on the other disc for engagement with selected ones of the recesses. The work can be easily moved to each of several preset angles of inclination. A lock lever is provided to lock the shaft not only at the preset positions, but at any other desired position, so that any desired angle of inclination of the work can be achieved.

Abstract: A work rotating device for a laser beam machine utilizes a work-supporting bed rotatable by a speed reducer mounted on a frame adapted to rest on a table of the laser beam machine. In a first embodiment, the speed reducer is fixed to the frame, and the frame has two orthogonal surfaces alternatively engageable with the table so that the axis of rotation of the work can be either vertical or horizontal. In a second embodiment, the speed reducer is manually tiltable in the frame by direct manual rotation of a shaft on which the speed reducer is mounted. In a third embodiment, the speed reducer through which the work is rotated is mounted on a shaft which is connected to a handwheel through another speed reducer. In a fourth embodiment, the speed reducer through which the work is rotated is tilted by a servo motor operating through a speed reducer.

Abstract: A work rotating device for use with a laser beam machine tool comprises an L-shaped frame from which a servo motor, speed reducer, and a rotatable work holder are supported in cantilever fashion by a shaft rotatable in bearings provided in a hole in the frame. The shaft has an end plate haivng a spring-loaded indexing pin engageable with any selected one of several indexing holes in an indexing plate fixed to the frame. The angle of inclination of the axis of rotation of the work is read from a scale on the end plate, by means of an indexing mark on the indexing plate. The indexing plate and end plate exert axial pressure respectively on outer and inner rings of the bearings to eliminate play.

Abstract: In a workpiece support, a servomotor, a right-angle speed reducer and a work gripping device are supported on a horizontal shaft which is rotatable on bearings in a frame to tilt the axis of rotation of the workpiece. The shaft is locked against rotation by a lever-operated screw, which exerts a lateral force on the shaft through a lock ring. The lock ring is held against rotation by a pin which is fixed to the frame and which extends into a hole in the lock ring along an axis parallel to the axis of the screw. Fixing the lock ring against rotation prevents unintended movement of the shaft caused by tightening of the lever-operated screw. The inner surface of the lock ring is provided with an axial extending V-shaped groove which engages a spacer ring fixed on the shaft along two lines of contact for secure locking of the shaft against rotation.