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 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:
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 compact warning device for preventing child from being lost comprises a high frequency distance-adjustable host transceiver and a plurality of slave transceivers wherein the high frequency host transceiver is carried by the parents and a high frequency slave transceiver is secured on a child, and the host and the slave transceivers can proceed bi-directional page or response with its counterpart. When one of the slave transceivers departs from the host transceiver beyond a preset security range, both the host and the slave transceiver will alarm to warn the child and the parents in order to prevent the child from being lost. Moreover, as this invention is capable of adjusting security range in multiple stages, it can fit various circumstantial conditions.
Abstract:
A workpiece feeding device includes a housing with a vertical support wall which has shaft mounting sleeves. First shafts extend horizontally and respectively through the sleeves. Two bearings are provided in two ends of each sleeve between the first shaft and the sleeve and are made of a powder-metallurgy process. Swing seats are mounted respectively to rear ends of the sleeves and have vertical seat walls which, in turn, have first holes for insertion of the sleeve and second holes for insertion of second shafts. Bushings project from the seat walls and have auxiliary seats which extend to the sleeves for connection therewith. As such, the machine can operate stably during the workpiece feeding operation.
Abstract:
An adjustable supporting apparatus supports a workpiece feeding machine on a worktable and includes a base member fixed on the worktable and provided with a neck. A pivot member has a vertical sleeve portion sleeved rotatably on the neck and locked releasably on the neck by means of a vertical lock bolt unit, and a horizontal nose projecting from the vertical sleeve portion. When released, the pivot member can rotate about a vertical axis on the neck. A horizontal sleeve member is sleeved rotatably on the nose and locked releasably on the nose by means of a horizontal lock bolt unit. When released, the sleeve member can rotate about a horizontal axis on the nose. A positioning assembly has a tubular unit fastened to the sleeve member and formed with a passage into which a straight first end portion of a coupler rod is inserted. The rod includes a rack secured to the first end portion and engaging a pinion which is disposed within the tubular unit so that rotation of the pinion can be converted into the movement of the rod, and a bent second end portion having a distal end provided with a fixed ball locked releasably on the machine.