Abstract: An optical disk drive is loaded with a disk set in a chuck position upon entry through an insertion slot by automatic loading. A lifting frame is movable between high and low positions in an opening of a base panel. A disk driving unit is disposed on the lifting frame for chucking and rotating the disk. A leading segment is connected with the lifting frame, and raises a distal end of a periphery of the disk from the insertion slot by forming a slope. The leading segment extends in the insertion direction of the disk, and has an end positioned beside the disk driving unit. The end of the leading segment is kept higher than an upper surface of the lifting frame when the lifting frame is in the low position.

Abstract: An optical disk drive of a slot-in type is loadable with any of two optical disks different in the diameter, and has an insertion slot formed in a case chassis for disk loading. A disk entered through the insertion slot is received by a disk support arm set in a ready position. A loading mechanism is actuated when the disk support arm is pressed by the disk. In response to this, plural arms and the disk support arm cooperate to support the disk, which is moved to a chuck position for writing and reading information. For disk unloading, the disk, supported by the. plural arms, is moved by the disk support arm to an ejection position. The disk support arm is shifted from an advance position for pressing the disk to the ejection position, to the ready position which is offset toward the chuck position.

Abstract: A disc device has a plurality of arms configured to support the outer rim of a disc carryable. Automatic loading is applied such that the disc inserted can be carried in the device, and the disc housed inside the device can be carried out of the device. A pair of shutter pieces are located on the central portion of a slot in a front bezel to be used to insert the disc therethrough and are spaced at a certain interval. The shutter piece rotates about one end thereof to raise/tumble the other end thereof. The tumbled shutter piece changes to the raised state after the disc is housed in the device while the shutter piece changes to the tumbled state before the disc housed inside the device is carried out of the device.

Abstract: A disc apparatus capable of automatic loading to load a disc and to unload a disc includes a plurality of arms for supporting outer peripheral edges of two kinds of discs with different diameters so that two discs can be transported, a loading slider, a clamping head moved up and down a plurality of times to clamp a disc by the loading slider when the loading slider is repeatedly moved forward and backward and a spindle motor for rotating the clamping head, wherein the spindle motor is driven by driving force previously set in response to the kind of the inserted disc at a proper time of the clamping operation period and which period is a period before and/or after the loading slider is operated in the reverse direction to thereby rotate the disc at a predetermined angle.

Abstract: A disk unit wherein a disk inserted is loaded to the interior of the disk unit with use of plural arms, the arms being able to convey two types of disks different in diameter while supporting an outer periphery edge of each of the disks, or a disk already received in the interior of the disk unit is unloaded to the exterior of the disk unit with use of the plural arms, the disk unit comprising a limit switch, the limit switch being adapted to operate when a tip of a guide arm pivots to excess in a centripetal direction relative to a predetermined position at which it should stop while supporting a side portion of a small-diameter disk, the guide arm functioning to conduct a large- or small-diameter disk being conveyed to a predetermined position while supporting a side portion of the disk, a disk unloading operation being started upon operation of the limit switch to permit discharge of a disk of a deformed shape.

Abstract: A network communication system includes a ZigBee network being defined based on IEEE 802.15.4, a plurality of IP (Internet Protocol) networks being defined based on IP, and a plurality of gateways available for protocols of the ZigBee network and the IP networks, wherein the plurality of IP networks is connected to the ZigBee network via the plurality of gateways, and a ZigBee frame that is based on the network layer of ZigBee is transmitted in the network communication system, the ZigBee frame storing an IP packet that is based on IP in a part of the ZigBee frame. The gateway includes a hop-limit control section for decrementing a hop number of a packet that passes through the gateway while regarding the ZigBee network as one hop in the IP network.

Abstract: Without increasing the volume of information device main body, it is possible to arrange two disc devices superimposed in a horizontal direction or a vertical direction in a standardized half-height drive bay, thereby enabling simultaneous drive of a plurality of optical discs and improving operability such as mounting of the optical discs. A disc device A can accept a single disc or double discs horizontally or vertically in the drive bay of half height configured in the front face of an information device. The case (1) portion of the disc device A has an external shape having a thickness 19 mm to 20.65 mm and a width 145.5 mm to 146.5 mm. Furthermore, threaded hole (1d) is formed in the side surface of the case (1) for mounting onto the information device main body. Moreover, when a pair of disc devices (A1, A2) configured so as to be vertically combined is made into a unitary block by opposing the cases 1, the external shape is such that matched with the opening of the drive bay.

Abstract: A disk unit wherein a disk is inserted by a plurality of arms, the arms being able to convey two types of disks different in diameter while supporting an outer periphery edge of each of the disks. A disk is loaded to the interior of the disk unit by automatic loading, and a disk accommodated in the interior of the disk unit is unloaded to the exterior of the disk unit. The disk unit comprises a limit switch, the limit switch being actuated by an arm that is pressed by an outer periphery edge of a large diameter disk or a small diameter disk upon insertion of the disk from a slot of a bezel. The insertion of the large diameter disk or the small diameter disk is determined on the basis of the state of operation of the limit switch.

Abstract: A disk unit is disclosed wherein a disk inserted by a pivoting arm is loaded to the interior of the disk unit or a disk accommodated in the interior of the disk unit is unloaded to the exterior of the disk unit, the disk unit including a plurality of arms able to convey two types of disks different in diameter while supporting an outer periphery edge of each of the disks.

Abstract: The method describes the operation of a roller blind including a moving element that can be operated via an actuator and a handheld-type remote control used to set the value of an operating parameter of the system, the value of this parameter being modifiable between two limit values. In this method, after a modification of the setting of the parameter value, an acknowledgement signal is sent, the acknowledgement signals differing according to whether the parameter value is or is not a limit value.

Abstract: The present invention provides a wafer machining apparatus which can separate streets with high efficiency, without deteriorating the quality of devices, in dividing a wafer into individual devices. The wafer machining apparatus comprises grinding means for grinding the back of the wafer; resist film coating means for passing a radiation from the back side to the face side of the wafer to recognize the streets, and coating a resist film onto regions other than street-corresponding regions; and plasma etching means for etching away the street-corresponding regions in a range from the back to the face of the wafer to divide the wafer into individual devices, and thus can perform a procedure ranging from grinding of the back of the wafer to the division of the wafer into the devices.

Abstract: In order to efficiently divide the wafer into individual devices in dicing the wafer without deteriorating the quality of the devices, the front surface of the wafer is coated with a resist film except the regions corresponding to the streets, grooves of a depth corresponding to the finished thickness of the devices are formed by plasma etching in the regions corresponding to the streets, and the back surface of the wafer is ground so that the grooves are exposed from the side of the back surface and that the wafer is divided into individual devices.

Abstract: A method for dividing a semiconductor wafer along a plurality of streets, the semiconductor wafer having a face on which a plurality of rectangular regions are defined by the streets arranged in a lattice pattern, and a semiconductor device is formed in each of the rectangular regions. This method comprises a protective member coating step of coating the face of the semiconductor wafer with a protective member, a resist film coating step of coating the back of the semiconductor wafer, except sites corresponding to the streets, with a resist film, and a plasma etching step of applying plasma etching to the back of the semiconductor wafer to divide the semiconductor wafer along the streets.

Abstract: In order to alleviate the contact pressure on a contact portion between both surfaces of a disc D and felts 25 in disc ejection, an upper end and a lower end of a slot 3a on the backside of a front bezel 3 are formed with an upper recess 27 and a lower recess 28 that receive the pushed-over upper and lower felts 25. Also, the pushed-over felts 25 are received in the upper recess 27 and the lower recess 28, so that the contact pressure on the contact portion between both surfaces of the disc D and the felts 25 can be decreased.

Abstract: A disk apparatus comprises a slot for inserting a disk-shaped recording medium therethrough, a first guide member for guiding one side of the disk inserted through the slot, a second guide member for guiding the other side of the disk inserted through the slot, a disk abutting portion for abutting the disk inserted through the slot, a disk support arm for carrying the disk by supporting and swinging the disk and a recording/reproducing unit for recording and/or reproducing information on and/or from the disk carried into the apparatus by the disk support arm, wherein a first disk having a diameter dA is loaded or unloaded by swinging the disk support arm, and wherein the disk support arm is disposed such that the disk abutting portion abuts and the disk support arm inhibits further insertion of a second disk having a diameter dB that is smaller than dA before the entire insertion of the second disk into the apparatus through any place of the slot while waiting for the insertion of the first disk through the s

Abstract: In order to prevent a workpiece from being damaged in etching workpiece of various external diameters, a ceramic holding jig corresponding to the external diameter of workpiece is mounted on a chuck table in a chamber of an etching apparatus. The chuck table is composed of a holding face for holding a workpiece and for converting etching gas into plasma and insulating zones each having an internal diameter smaller than the external diameter of the workpiece and an external diameter larger than the external diameter of the workpiece. In case a workpiece is to be held by either a first ceramic holding jig or a second ceramic holding jig on the chuck table, a jig identifying means installed to the chamber identify in advance which ceramic holding jig is mounted on the chuck table to match the holding jig and the workpiece each other, thereby to prevent the workpiece from being damaged.

Abstract: In the loading of a disc in a slot-in type of disc apparatus, time lag occurs at the time of shift from an operation that manually inserts the disc to an operation that automatically swallows the disc. In order to solve this problem, a switch for detecting the position of a disc at the beginning of insertion thereof and a switch for detecting a position where the loading of the disc has been completed are provided respectively. The modification of control is made so that the disc support arm is driven with a weak electric power from the beginning of the insertion of the disc, and an error caused by time-out is further detected. If the error has been detected, the disc is ejected.

Abstract: In the course of the loading of a disc in a slot-in type of disc apparatus, if a user intends to forcefully pull out the disc, there is a possibility that it is wrongly recognized that the disc has been normally loaded, and then a clamping head of a spindle motor collides against a surface of the disc to damage it. In order to solve this problem, during the loading operation of the disc, a safety mechanism for allowing a clamping operation in response to what the disc has reached a normally clamped position. The safety mechanism may be a mechanical stopper or an electrical detector.

Abstract: A disc device can easily install an eject/lock mechanism of self-hold solenoid type into a narrow space inside it, and by omitting some mechanisms of the structures, the cost can be lowered, and the malfunction frequency is therefore reduced. The disc device operates the eject/lock mechanism and opens a disc-loading unit by adding a pulse current to the self-hold solenoid. The eject/lock mechanism has a releasing spring, and when closing the disc-loading unit, a resilient force is generated by the releasing spring, and when opening the disc-loading unit, the resilient force is released. An activating end of the releasing spring is connected to a moveable plate of the self-hold solenoid.