Abstract: A portable computer standing support structure is disclosed to include a base member having a front locating device formed on the top face near the front edge and a rear locating device formed on the top face between the front edge and the rear edge, and a portable computer supported on a support arm at the base member and selectively positioned on the front locating device and rear locating device of the base member between an inclined position of low steepness for use with a touching pen and an inclined position of high steepness for use with a keyboard.

Abstract: A rotating display mounting structure includes a rotating display pivotally mounted in an open frame, and two locking mechanisms adapted to lock the rotating display to the open frame. Each locking mechanism includes a top link, a bottom link, a lever coupled between the links and pivoted with a middle part thereof to the cover shell of the rotating display, and an operating member connected to one end of the lever for operation by the user to rotate the lever and to further move the top link and the bottom link into or out of respective recessed locating holes in the top and bottom frames of the open frame and to further lock or unlock the rotating display.

Abstract: A concealed type hook structure includes a base member, a portable computer, and a hook assembly mounted in a locating hole of the base member for locking the portable computer to the base member, the hook assembly having a hook holder, a swivel hook pivoted to the hook holder, a pressure plate for biasing the swivel hook to force the swivel hook into engagement with the portable computer upon pressing of the portable computer on the base member, and a return unit for moving by the user to return the pressure plate and to further disengage the swivel hook from the portable computer.

Abstract: A portable computer and base member arrangement having a base member and a portable computer is disclosed. The base member has two stop flanges protruded upwardly from the top face in two rear corners and adapted to engage two recessed locating holes of the portable computer after attachment of the portable computer to the base member, and a swinging retainer plate fastened pivotally with the front side and provided with two retaining rods adapted to engage into corresponding retaining holes in the front peripheral side of the portable computer to lock the portable computer to the base member after engagement between the recessed locating holes with protruded retaining portions of the stop flanges of the base member.

Abstract: A portable computer standing support structure is disclosed to include a base member having a front locating device formed on the top face near the front edge and a rear locating device formed on the top face between the front edge and the rear edge, and a portable computer supported on a support arm at the base member and selectively positioned on the front locating device and rear locating device of the base member between an inclined position of low steepness for use with a touching pen and an inclined position of high steepness for use with a keyboard.

Abstract: A rotatable display mounting arrangement is disclosed to include a base having a first pivot structure, an open frame, the open frame having a second pivot structure pivotally coupled to the first pivot structure of the base and a second pivoting means symmetrically disposed at top and bottom frame bars thereof, and a display horizontally rotatably mounted within the open frame, the display having a first pivoting means symmetrically disposed at the top and bottom sides and respectively pivoted to the second pivoting means of the open frame, the first pivoting means having wire holes for the passing of the electric circuit wire of an antenna embedded in the top frame bar of the open frame and the electric circuit wire of the base to the display.

Abstract: A rotatable display mounting structure is disclosed to include a hollow frame, a display pivotally mounted inside the hollow frame, positioning structures provided at the display, positioning devices formed in the hollow frame and adapted to engage with the positioning structures and to hold the display in the hollow frame in position after rotation of the display in the hollow frame vertically (or horizontally). The positioning structures are respectively extended from the outer left side of the display to the outer right side of the display, and the positioning devices are respectively extended from the left-side frame bar of the hollow frame to the right-side frame bar of the hollow frame, so that the positioning structures and the positioning devices, when matched, form a shielding structure to stop light from passing through the gap between the display and the hollow frame.

Abstract: An auto-locking support structure lockable between the received position and the extended position by means of linking among a cover plate, a link, a slide and a pivot shaft, and biasing and prestressing from a spiral spring to the pivot shaft. The user needs not to move the linking parts of the support structure directly with the hand when opening or closing the support structure, preventing loss of supporting function due to friction damage.

Abstract: A portable computer host has a display face, a back face and four side faces. First magnetic units and at least one positioning unit are placed on the display face or the back face. An attached panel, having an attaching face and four edges, has second magnetic units placed on the attaching face that correspond to the first magnetic units, and also has at least one second positioning unit placed on the attaching face corresponding to the first positioning unit.

Abstract: A battery engagement structure used in a portable battery charging module is disclosed to include a housing accommodating an operation mechanism and a button such that when a battery pack inserted into the battery engagement opening at the housing, the locking bar of the operation mechanism is pushed away by the inserted battery pack. Pressing the button with the hand after charging, the locking bar is moved away from the battery engagement opening to unlock the battery pack. The moving direction of the locking bar is reversed to the pressing movement of the button by means of the action of the link of the operation mechanism, therefore the component parts of the battery charging module can be freely arranged to fully utilize the internal space of the module.

Abstract: A support structure of a portable keyboard includes two front support and a rear support. The front supports and the rear support can rotate to two predetermined angles respectively to form a confine within which a portable computer may be placed and supported. The rear support supports a backside of the portable computer, and the front supports push against a lower edge of the portable computer. Furthermore, both the front supports and the rear support can be closed onto an upper surface of the portable keyboard.

Abstract: A portable computer host has a display face, a back face and four side faces. First magnetic units and at least one positioning unit are placed on the display face or the back face. An attached panel, having an attaching face and four edges, has second magnetic units placed on the attaching face that correspond to the first magnetic units, and also has at least one second positioning unit placed on the attaching face corresponding to the first positioning unit.

Abstract: An support assembly for a portable computer has a plurality of magnetic devices with opposite magnetic poles deposited separately on a backside of the portable computer and a back support board of the extending base. When the portable computer is placed in the extending base, the magnetic attraction force positions the portable computer into a containing groove of the extending base.

Abstract: A mobile computer tilting arrangement is disclosed to include a casing, the casing comprising at least two recessed locating holes respectively disposed in at least two corners of the back side thereof, and two plugs selectively detachably press-fitted into two of the at least two recessed locating holes for supporting the casing on a flat surface in a sloping position, each plug comprising a center through hole, and a pin insertable into the center through hole to radially expand the respective plug into friction engagement with one recessed locating hole of the casing into which the respective plug is press-fitted.

Abstract: A portable computer having a hidden keyboard structure is disclosed. The portable computer comprises: a shell having installed in the top face thereof a LCD panel and a keyboard, a protective cover pivoted to one peripheral side of the shell by a coupling mechanism and adaptable to cover the keyboard, the protective cover having a plurality of buttons mounted on the outer face and a cursor control device mounted on the inner face, and a flexible printed circuit connected between the shell and the protective cover for transmitting signals from the buttons and the cursor-control.

Abstract: A computer mouse conforming blue tooth protocol and having receiving capability and two output modules comprises a mouse body built with a mouse module and a blue tooth communication module, an extending cable, a signal joint at a distal end of the cable and a hub control and I/O (input/output) port built with a data register and a switching control device for integrating the mouse module and the blue tooth communication module. The mouse module generating X axis and Y axis encoding outputs and the blue tooth communication module serves to receive and transmit wireless signals of standard blue tooth communication protocol. The blue tooth communication module is connected to the hub control and I/O port. Signals entering into the signal joint are transmitted through the blue tooth communication module.

Abstract: An automatic switching bi-directional vehicle-used speaker comprises a handset having a standard wireless communication protocol and a wireless earphone. The handset and wireless earphone transmitting speech signals bi-directionally. The wireless earphone is installed on a speaker device. A switch is used to switch the speech signal from the handset to the wireless earphone so that the signal is emitted through the speaker device. The microphone built in the speaker device receives speech signals of a user and then the speech signals are sent to the handset through the wireless earphone for emission. By above mentioned structure, the wireless earphone is placed in the speaker device. By the speaker device, speech signals are sent bi-directionally. Thereby, the user can communicate through the handset without wearing a wireless earphone.

Abstract: An alicyclic compound of the formula (1) is disclosed: wherein R1 and R2 each independently is a hydroxyl group, a C1-8 hydroxyalkyl group, or a C3-8 hydroxycycloalkyl group; R3, R4 and R5 each independently is a hydrogen, a C1-8 hydroxyalkyl group, a C1-6 carboxylic acid or a C3-8 carboxylic acid ester; k is an integer of 0, 1, 2, 3, 4, 5 or 6. The compound of the formula (1) can be applied to dissolution inhibitors for preparing positive photoresist composition.

Abstract: A positive photoresist composition comprising a polymer, a photoactived agent and an dissolution inhibitor represented by the following formula (1): wherein R1, R2, R3, R4, R5 and k are defined in the specification. The photoresist composition of the present invention is useful as a chemically amplified type resist when exposed to deep UV light from a KrF and ArF excimer laser.

Abstract: A positive photoresist composition comprising a polymer, a photoactived agent and an dissolution inhibitor represented by the following formula (1): wherein R1 and R2 each independently is a hydroxyl group, a C1-8 hydroxyalkyl group, or a C3-8 hydroxycycloalkyl group; R3, R4 and R5 each independently is a hydrogen, a C1-8 hydroxyalkyl group, a C1-6 carboxylic acid or a C3-8 carboxylic acid ester; k is an integer of 0, 1, 2, 3, 4, 5 or 6. The photoresist composition has high transparency to deep UV light and is capable of forming good fine patterns, roughness and high sensitivity, thus being useful as a chemically amplified type resist when exposed to deep UV light from an KrF and ArF excimer laser.