Abstract: A dual-band antenna has a ground portion, a connection portion with a feeding point separated from the ground portion and a short portion connected to the ground portion and the connection portion. The short portion and the ground portion are formed an acute angle therebetween. The connection portion respectively connect a first radiating portion and a second radiating portion. The first radiating portion and the second radiating portion are parallel to said ground portion. The short portion is arranged between the ground portion and the first radiating portion. When the dual-band antenna operates at wireless operation, the connection portion, the first radiating portion and the second radiating portion resonate to obtain a first frequency range and a second frequency range. The short portion is formed as a function of an inductance.

Abstract: A dual band antenna has a ground portion, a first radiating conductor spaced from one side of the ground portion, a second radiating conductor connected between one end of the first radiating conductor and the ground portion, a third radiating conductor connected on the other end of the first radiating conductor, a fourth radiating conductor extended from the third radiating conductor, a parasitic element arranged to close to the second radiating conductor and connected to the ground portion and a feeding cable connected to the free end of the third radiating conductor. When the dual band antenna operates, the first, second and third radiating conductors obtain a first wireless location area network bandwidth covering 2.4 GHz to 2.5 GHz, and the third radiating conductor, the fourth radiating conductor and the parasitic element obtain a second wireless location area network bandwidth covering 4.9 GHz to 5.87 GHz.

Abstract: A multi-band antenna is arranged on a housing with a first surface, a second surface opposite to the first surface, and a third surface connecting the first and second surfaces, which has a first radiating conductor and a parasitic element formed as an elongated shape and arranged on the first surface. A trap circuit connects the first radiating conductor and the parasitic element. A ground portion is arranged on the second surface. A second radiating conductor is arranged on the third surface and spaced from the first radiating conductor and the ground portion, which is formed as an elongated shape. A feeding conductor with a feeding point connects the first and second radiating conductors. The multi-band antenna obtains a low frequency band through the cooperation of the first radiating, the parasitic element and the trap circuit, and a high frequency band through the second radiating conductor and the parasitic element.

Abstract: An integrated multi-band antenna has a first radiating element and a second radiating element. The first radiating element has a first radiating conductor defining opposite sides connected to a second radiating conductor and a third radiating conductor respectively. A fourth radiating conductor defines a first end facing the free end of the third radiating conductor. A fifth radiating conductor connects the third radiating conductor and vicinity of the first end of the fourth radiating conductor. A sixth radiating conductor connects the first radiating conductor and close to a ground portion. The second radiating element has a seventh radiating conductor staggered opened plurality of slots at opposite sides thereon. An eighth radiating conductor connects the seventh radiating conductor and the ground portion.

Abstract: An antenna unit has a first antenna operating at wireless telecommunication bands and a second antenna operating at wireless local area network bands. The first antenna has a first radiating conductor with a first feeding point defining opposite sides, a second, a third and a fourth radiating conductors extending from both sides of the first radiating conductor. A parasitic element defines opposite ends. One end of the parasitic element confronts the free end of the third radiating conductor. A trap circuit connects the fourth radiating conductor and the parasitic element. A second antenna has a third side, a fourth side and a stair-shape side. The connection of the sides of the second antenna forms a first protrusion with a second feeding point and a second protrusion confronting the first antenna. A slot is opened on the second antenna. A ground portion is spaced from the first radiating conductor and the first protrusion.

Abstract: The present invention discloses a multi-band antenna, the multi-band antenna has an antenna base, a power feed portion and a grounding point. The antenna base includes a first rectangular portion, a second rectangular portion and a third rectangular portion. A first connection portion connects the first rectangular portion with the second rectangular portion, a second connection portion connects the first extending portion with the second extending portion. The power feed portion is arranged below the antenna base, and the power feed portion connects to the first rectangular portion and the second rectangular portion. The grounding point is arranged below the first rectangular portion and near the power feed portion. The first and second connection portions control the size of the electric current through the antenna base. By the above-mention unique design, the multi-band antenna can receive and transmit the signals of the different frequency bands and has a smaller volume.

Abstract: An antenna unit has a first antenna operating at wireless telecommunication bands and a second antenna operating at wireless local area network bands. The first antenna has a first radiating conductor with a first feeding point defining opposite sides, a second, a third and a fourth radiating conductors extending from both sides of the first radiating conductor. A parasitic element defines opposite ends. One end of the parasitic element confronts the free end of the third radiating conductor. A trap circuit connects the fourth radiating conductor and the parasitic element. A second antenna has a third side, a fourth side and a stair-shape side. The connection of the sides of the second antenna forms a first protrusion with a second feeding point and a second protrusion confronting the first antenna. A slot is opened on the second antenna. A ground portion is spaced from the first radiating conductor and the first protrusion.

Abstract: An integrated multi-band antenna has a first radiating element and a second radiating element. The first radiating element has a slot and a feeding conductor having a first feeding point. A first ground portion is arranged to close to the feeding conductor. The second radiating element has a first radiating segment, a second radiating segment extending from one end of the first radiating segment, a third, a fourth, a fifth and a sixth radiating segments connecting end to end in sequence wherein one end of the third radiating segment connects to the other end of the first radiating segment, and one end of the sixth radiating segment remains free. A second feeding point is arranged at the corner between the fourth and fifth radiating segments. A second ground portion is arranged to close to the corner. Operation of the integrated multi-band antenna can obtain various wireless communication bands.

Abstract: An integrated multi-band antenna has a first radiating element and a second radiating element. The first radiating element has a slot and a feeding conductor having a first feeding point. A first ground portion is arranged to close to the feeding conductor. The second radiating element has a first radiating segment, a second radiating segment extending from one end of the first radiating segment, a third, a fourth, a fifth and a sixth radiating segments connecting end to end in sequence wherein one end of the third radiating segment connects to the other end of the first radiating segment, and one end of the sixth radiating segment remains free. A second feeding point is arranged at the corner between the fourth and fifth radiating segments. A second ground portion is arranged to close to the corner. Operation of the integrated multi-band antenna can obtain various wireless communication bands.

Abstract: A multi-band antenna configured in a portable electrical device capable of operating in a low frequency bandwidth and a high frequency bandwidth has an elongated radiating body and a feeding conductor connecting the elongated radiating body. The feeding conductor has opposite side arms respectively connecting the elongated radiating body and a connecting portion connecting the side arms. A feeding point is arranged at a corner where one of the side arms connects to the connecting portion. The elongated radiating body and the feeding conductor are located on different planes of the portable electronic device. According to the position where the feeding conductor connects to the elongated radiating body and the position where the feeding point is arranged at, the multi-band antenna has a preferred low frequency bandwidth and a preferred high frequency bandwidth. Therefore, the portable electrical device can operate at different wireless bandwidths.

Abstract: A multi-band antenna adapted to a portable electrical device capable of operating in various wireless communication bands includes a first radiating conductor having opposite elongated sides, a second radiating conductor extending from one end of the first radiating conductor, a third radiating conductor arranging about a central area of the first radiating. Both the second radiating conductor and the third radiating conductor extend from the same elongated side of the first radiating conductor. A feeding body is curved and extended from the third radiating conductor. According to a position that the feeding body connecting to the third radiating conductor and designed the feeding body, operation of the multi-band antenna has a preferred range of a low frequency bandwidth and a high frequency harmonic bandwidth.

Abstract: A multi-band antenna operates at a low frequency and a wider high frequency bands, which is formed as an elongated shape defining opposite ends. The multi-band antenna has a slot opened at a long edge and being extending to one end thereon. The wide range of the opening of the slot is larger than the extension length of the slot. A feeding conductor with a feeding point is arranged to adjoin the opening of the slot. The multi-band antenna resonates the low frequency band and a first high frequency. The slot obtains a second high frequency band higher than and partially overlapped the first high frequency. So the multi-band antenna has the low frequency bands and the better high frequency which includes several high frequency bands.

Abstract: A multi-band antenna configured in a portable electrical device capable of operating in a low frequency bandwidth and a high frequency bandwidth has an elongated radiating body and a feeding conductor connecting the elongated radiating body. The feeding conductor has opposite side arms respectively connecting the elongated radiating body and a connecting portion connecting the side arms. A feeding point is arranged at a corner where one of the side arms connects to the connecting portion. The elongated radiating body and the feeding conductor are located on different planes of the portable electronic device. According to the position where the feeding conductor connects to the elongated radiating body and the position where the feeding point is arranged at, the multi-band antenna has a preferred low frequency bandwidth and a preferred high frequency bandwidth. Therefore, the portable electrical device can operate at different wireless bandwidths.

Abstract: A multiple-band monopole coupling antenna includes a dielectric board, a low frequency antenna and a high frequency antenna. The low frequency antenna and the high frequency antenna are located on the front of the dielectric board. The length of the low frequency antenna equals to the half length of the low frequency waves and can receive and transmit two low frequency waves and a high frequency wave. The length of the high frequency antenna equals to the quarter length of the high frequency waves. The high frequency antenna is adjacent to the low frequency antenna and couples with the low frequency antenna while the low frequency antenna is receiving or transmitting signal. Thus, the high frequency antenna can receive and transmit three high frequency waves. The multiple-band monopole coupling antenna can receive and transmit all frequency bands, which are used in the mobile communication.

Abstract: A roller-guided feeding device includes guiding rollers, an arm which is movable relative to the guiding rollers between initial and working position that are remote from and closer to the guiding rollers, respectively, and which has a feed-in roller, a pneumatic cylinder, and a piston rod connected to a piston in the cylinder. The piston rod is moved as a result of a difference in pressures in the cylinder so as to turn the arm. A servo valve member is disposed to control air flow into the cylinder so as to hold the feed-in roller at the working position and the initial position in response to a work signal from a sensor member and a start signal from a manually-operated actuator, respectively. In response to a pausing signal from the sensor member, the feed-in roller is held at a pausing position to serve as another initial position in a subsequent cutting operation.

Abstract: The present invention provides a gift recommending method and system. By the parameters input by the consumer, and using the powerful computer system and Internet connection, the worldwide members can register or the non-members can surf the present system. According to the preplanned database, the gifts can be recommended after the items that meet the input parameters of the consumer are found in the database, and the consumer can select the specific item from the recommended list. The database includes various product catalogs provided by the factory owners in each region for being selected by the consumer or recommending gifts after the consumer inputs the parameters. The system can inform the provider in the mailed region appointed by the consumer to send the selected gift to the receiver. By the interactions among the system of the present invention, the consumer and the factory owner, the consumer can buy the gift needed by the receiver in a more convenient and economic way.

Abstract: A projection lens set shifting apparatus includes a gear train, adjusting shaft and projection lens set, wherein an eccentric wheel is fixed on an output shaft of the gear train and a notch is opened at the circumference of the eccentric wheel. An eccentric pin is fixed at one end of the adjusting shaft. The eccentric pin in the notch connects the adjusting shaft and the gear train. The projection lens set is moved up and down along the adjusting shaft by rotating the gear train to drive the adjusting shaft, thus cause an image focusing location to be moved with the projection lens set and shifted up and down on a screen. Therefore, an image projection location can be changed and the image deformation is not yielded. Besides, a gap between the notch and the eccentric pin absorbs a production tolerance.

Abstract: A nutritional compositions for alleviating fatigue is produced by grinding essentially Panax ginseng, androgen-containing Cervus sika, vitamin A- and B-containing extract of fruit meat of Euphoria longana, Dioscorea batalus, and Acanthopanax senticosus into powder, and then mixing and formulating the resulting powders with gelatin and pure water into a formulation, wherein, in 350 mg of said nutritional composition, the effective amounts of each components is: Panax ginseng 105 mg, androgen extracted from Cervus sika 51 mg, Acanthopanax senticosus 15 mg, gelatin 86 mg, pure water 14 mg, and vitamin A and B extracted from fruit meat of Euphoria longana 24 mg each.

Abstract: A feeding roller includes a hub member mounted to rotate with a driven shaft, a plurality of angularly displaced anchored seat members disposed on a surrounding outer wall of the hub member and defining anchored areas, a surrounding workpiece contacting member surrounding and spaced apart from the hub member so as to be brought into frictional contact with a workpiece, a plurality of force transmitting members disposed on an inner annular wall surface of the surrounding workpiece contacting member and forming secured areas which spacedly confront and lead the anchored areas, respectively, and a plurality of coupling and biasing members, each interposed between the secured area and the corresponding anchored area. Rotation of the hub member is transmitted to the surrounding workpiece contacting member to bring the surrounding workpiece contacting member into contact with the workpiece so as to feed the workpiece with an even and smooth compression force.