Abstract: A surface mount antenna includes a conductive film provided on four continuous surfaces, that is, a front end surface, a top surface, a rear end surface, and a bottom surface, of a dielectric substrate. A plurality of slits is formed in the conductive film so as to divide the conductive film into a plurality of conductive film parts. At least one of the divided conductive film parts functions as a radiation electrode. Sides of one of the slits, that is, the slit forming an open end of the radiation electrode, are formed by a dicer. The position of the open end of the radiation electrode affects the resonance frequency of the radiation electrode. Since the dicer can cut with high precision, the open end can be provided substantially at a desired position, whereby the radiation electrode can generate a substantially the desired resonance frequency.

Abstract: An electronic component mounting apparatus uses sensors and a controller to correct the position at which a component holder, generally a suction nozzle, captures a component, thus avoiding component capture errors and failures. More specifically, sensors detect a deviation amount between a predetermined location on a component absorbed by a suction nozzle and the suction position of the suction nozzle. The deviation amount is multiplied by a sensitivity coefficient, and the resulting adjusted deviation amount is then applied by the controller to correct the position of the suction nozzle when capturing a subsequent component. Accordingly, the subsequent component is absorbed by the suction nozzle normal to the component and at a position substantially centered with respect to the component, reducing the occurrence of suction errors.

Abstract: A circular-plate holder is disposed at an end of a cylindrical portion arranged in a tripod head. A pair of arc lever tumblers, which is capable of contacting the inner surface of the cylindrical portion, is rotatably supported on the holder around a rotation axis. The ends of the arc lever tumblers are close to each other. A rotator, which has a gear portion at a tip end, is rotatably supported on the holder around a rotation axis disposed between the other ends of the lever tumblers. Each of the tumblers is connected to the rotator by a pair of linkage means. The gear portion of the rotator engages a gear portion of a torque-adjusting shaft, which extends through a central portion of the holder and rotates according to rotational operation of an adjusting knob.

Abstract: A method of transmitting a large amount of data with priority for use with a CSMA/CD system includes the steps of checking to see if a transmission line has a free space in response to a data transmission request from a node serving as a source node, transmitting, if the transmission line has a free space, a priority transmission notice carried by a data-link-layer protocol signal of the CSMA/CD system from the source node to the other nodes, transmitting data for which the data transmission request has been made from the source node to a node serving as a destination node, and putting the nodes except the source node in a transmission-disabled, reception-enabled state when the priority transmission notice is received by the nodes. Also provided is an apparatus for achieving such a method.

Abstract: The present invention provides: a photosensitive resin composition, which can form uniform coating films having higher coating film strength without causing surface contamination, decrease of evenness of coating films, decrease of film thickness, and coloring by decomposition in heat treatment of subsequent steps, and has good sensitivity of exposure. The photosensitive resin composition comprises a lactone-ring-containing polymer (A) as an essential component, wherein: the lactone-ring-containing polymer (A) is obtained by carrying out polymerization of comonomers and lactonization at the same time wherein the comonomers include a 2-(hydroxyalkyl)acrylate ester and an acidic-group-containing monomer; and the lactone-ring-containing polymer (A) is obtained by almost quantitatively carrying out lactonization of a 2-(hydroxyalkyl)acrylate ester structural unit.

Abstract: In an ATM switch, upon the occurrence of a line fault, an SNMP agent of an ATM switch on a called side detects a line fault and notifies the line fault to a calling side by a trap signal. An SNMP agent having an SNMP manager function of an ATM switch on the calling side receives the trap signal. A line manager specifies a line on which a fault has occurred based on line fault information of the trap signal and switches over to a predetermined alternate line. Also, the ATM switch has a PNNI interface mounted thereon and notifies a PNNI line fault to the calling side by the trap signal.

Abstract: The present invention provides: a transparent heat-resistant resin that has a small amount of both the residual maleimide monomer and the maleimide monomer generated by heating in order to carry out such as a mold processing, and further, is excellent in heat resistance and yellowish little; a production process therefor; and a resin composition utilizing this resin. The transparent heat-resistant resin, according to the present invention, is obtained by a process including the step of running a polymerization of comonomers including a maleimide monomer and a methacrylic acid ester monomer, wherein the amount of the residual maleimide monomer in the resin is not more than 10× ppm when the amount of a structural unit derived from the maleimide monomer is X weight % in the resin, and the amount of the generated maleimide monomer by heating the resin at 240° C.

Abstract: The present invention is to avoid an occurrence of an suction error caused by a deviation with respect to a component of an suction nozzle, namely, an accident of a failure in capturing a component. A deviation amount is detected between a center of a component absorbed by an suction nozzle and an suction position of the suction nozzle. Also, a value in which this deviation amount is multiplied by a sensitivity coefficient is added as a positional correction at a next time of suction by the suction nozzle. Accordingly, when the suction nozzle absorbs the component at the next time, the suction nozzle normally absorbs the component at the position substantially corresponding to the center.

Abstract: A variable resistor is constructed to reliably seal the space between a rotor and a substrate without insert-molding the substrate into a case, and to be produced at a very low cost. This variable resistor includes a hollow square-prism shaped case which is open at the top and the bottom, a substrate which is fitted into the lower opening of the case, and on the top surface of which a collector electrode and an arcuate resistor are provided, a rotor rotatably fitted into the upper opening of the case, a slider mounted on the bottom surface of the rotor and making sliding contact with the collector electrode and the resistor, an annular packing member disposed between the rotor and the substrate for sealing the space therebetween, terminals mounted on the substrate and electrically connected to the resistor and the collector electrode, and a metallic cover.

Abstract: A variable resistor is constructed to reliably seal the space between a rotor and a substrate without insert-molding the substrate into a case, and to be produced at a very low cost. This variable resistor includes a hollow square-prism shaped case which is open at the top and the bottom, a substrate which is fitted into the lower opening of the case, and on the top surface of which a collector electrode and an arcuate resistor are provided, a rotor rotatably fitted into the upper opening of the case, a slider mounted on the bottom surface of the rotor and making sliding contact with the collector electrode and the resistor, an annular packing member disposed between the rotor and the substrate for sealing the space therebetween, terminals mounted on the substrate and electrically connected to the resistor and the collector electrode, and a metallic cover.

Abstract: A network system of the present invention is constructed of first to third terminal equipments connected to a network. In the case of establishing such a plurality of connection calls that a plurality of connections belong to one call between the first and second terminal equipments, if unable to set all the connections between the first and second terminal equipments, the network sets the connections capable of ensuring bandwidths between the first and second terminal equipments, and sets a remaining connection between the first and third terminal equipments.

Abstract: In manufacturing a thermoplastic copolymer by copolymerizing an aromatic vinyl monomer, a vinyl cyanide monomer, and, when necessary, a vinyl monomer (a) copolymerizable with the above two monomers, at least a part or all of the vinyl cyanide monomer is put in a reactor and copolymerizing reaction is started, and a weight of an unreacted portion of the aromatic vinyl monomer is caused to become greater than a weight of an unreacted portion of the vinyl cyanide monomer when all the monomer components are put in the reactor. By doing so, a ratio of the vinyl cyanide monomer in a structural unit of a thermoplastic copolymer produced at latter stages of the copolymerizing reaction is lowered. Thus, the present invention is capable of providing a thermoplastic copolymer which has excellent physical properties such as good heat resistance and good mechanical strength and is hard to discolor, as well as a manufacturing method thereof.

Abstract: An ARP server which can inform a calling terminal of an address suitable for an intended communication with a receiving terminal among a plurality of addresses usable for that purpose. The ARP server is equipped with an ATMARP table consisting of a plurality of unit tables each of which correlates an IP address and a plurality of ATM addresses. When receiving an inquiry about an ATM address corresponding to a certain IP address, the ARP server checks free bandwidths of circuits relating to respective ATM addresses in a unit table that corresponds to the IP address of interest, and informs the terminal that issued the inquiry of an ATM address with the largest free bandwidth.

Abstract: A programmable electronic sewing machine includes input means for supplying input data when operated by a user, and sewing program composing means for composing a sewing program for the sewing machine on the basis of the input data supplied from the input means. The sewing program composing means composes the same sewing program on the basis of the input data supplied from the input means when the input means is operated in two or more different operating procedures.

Abstract: A sewing machine system provided with an electronically controlled sewing machine and a programmer, which is electronically connected to the sewing machine, for creating a sewing data in cooperation with the sewing machine. A selecting switch is provided and, when sewing data is being created, a user can switch a display condition of a displaying device of the programmer between a first mode for displaying numerical data related to currently created sewing data, and a second mode for displaying an image of the pattern in accordance with the sewing data which is being created.

Abstract: A sewing system including a stitch-forming device including at least one sewing needle, for forming stitches on at least one workpiece; a feeding device which feeds at least one of the stitch-forming device and the workpiece relative to the other of the stitch-forming device and the workpiece along a reference plane; a control device which controls, according to at least one set of sewing data corresponding to at least one sewing pattern including a plurality of stitches, the stitch-forming device and the feeding device to form the stitches of the sewing pattern on the workpiece; a dimension-data memory which stores a plurality of sets of dimension data which correspond to a plurality of dimensions, respectively, each of which relates to the set of sewing data; and a selecting device which is operable for selecting one of the sets of dimension data stored in the dimension-data memory.

Abstract: A programmable electronic sewing machine includes sewing means for executing a sewing operation according to a predetermined program, program composing means for composing the program, displaying means for displaying a plurality of icons representative of commands used in composition of the program respectively, and input means for entering data used in composition of the program and for selecting a desired one of the icons displayed by the displaying means.

Abstract: Disclosed is a sewing machine system, including an electronically controlled sewing machine, and a data editing device. In a sewing machine, a plurality of sewing programs stored in a data recording medium are read, and image data indicative of a sewing pattern corresponding to each sewing program is generated. The image data is then transmitted to the data editing device. In the data editing device, a plurality of sewing patterns are displayed in accordance with the received image data. When one of the displayed sewing patterns is selected by an operator, a predetermined operation is applied to a sewing program corresponding to the selected sewing pattern.

Abstract: A work-sheet folding apparatus including a table having a hole; a support plate which is provided above the table and on which the work sheet is placed; a first folding member which cooperates with the support plate to fold an outer peripheral portion of the work sheet in a first direction perpendicular to the support plate; a first moving device which moves the first folding member in the first direction; second folding members which cooperate with the support plate to fold back the outer peripheral portion of the work sheet in a second direction parallel to the support plate; second moving devices which move the second folding members in the second direction; a support member which surrounds an outer peripheral portion of the support plate and which supports the second folding members; a pressing device which presses the support plate and the support member on the table; a movable member which is provided in the hole of the table such that the movable member is movable upward and downward; and a supporting

Abstract: A programmable electronic sewing machine includes sewing control means for controlling sections of the machine including a main shaft on the basis of a preset program so that a sewing operation is executed, rotational speed setting means for setting a rotational speed of the main shaft according to an amount of operation thereof, upper limit calculating means for calculating an upper limit settable as the rotational speed of the main shaft on the basis of the preset program, and displaying means for displaying the rotational speed of the main shaft currently set by the rotational speed setting means with the upper limit calculated by the upper limit calculating means serving as an upper limit of the displayed rotational speed.