Abstract: A length adjusting mechanism of slitter rewinder, comprising a feeding device, a slitting device, a rewinding device, and a control device, the slitting device and the rewinding device including a length adjusting device therebetween which enables simultaneous completion of rewinding strips of material of multiple winding drums installed on this invention.

Abstract: A length adjusting mechanism of slitter rewinder, comprising a feeding device, a slitting device, a rewinding device, and a control device, the slitting device and the rewinding device including a length adjusting device therebetween which enables simultaneous completion of rewinding strips of material of multiple winding drums installed on this invention.

Abstract: A USB power amplified trumpet connecting device comprises a digital conversion chip and a power amplifier chip on a circuit board; an input connected to a USB port as an input; and an output. The output is connected to one of an earphone, a trumpet, or an optical fiber terminal. The output seat is an optical output seat which is connected to an optical fiber terminal for further connecting to a decoding amplifier and then to a trumpet. Another the output can be an output wire; and the output wire is connected to a trumpet. The output is an output seat; and the output seat is able to output cable signals and optical fiber signals for being connected to one of an earphone, a trumpet and an optical fiber terminal.

Abstract: A USB music player comprises one USB connecting slot for receiving one portable memory, such as a pen disk or a thumb disk, each having a respective USB connector so as to read music format stored in the two portable memories; wherein data is transferred and recorded between the two portable memories and the USB music player; a plurality of insertion hole and a plurality of buttons; wherein music signals are transferred to an external playing device through the insertion holes; the playing of music is controlled by the control keys. Moreover, there may be only one slot in the USB music player. A wire or wireless earphone set is connected to one of the plurality of insertion holes. A trumpet or an amplifier is connected to one of the plurality of insertion holes.

Abstract: A multi-sound source wireless transmission system comprises a USB connector capable of being inserted to one of a notebook computer or an audio signal wire connected to a first electronic device; a transmission module connected to the USB connector for wirelessly transmitting sound signals to a receiving module in another far end second electronic device. The second electronic device is one of a CDs, MP3 players, TVs, Tuners, DVDs, VCDs, stereos, and computers. The wireless transmission is one of RF transmission and blue tooth transmission. The second electronic device is a head mounted earphone. The receiving module is capable of being hung on the waist and is connected to an inserting type earphone. The receiving module is installed to an MP3 player; and the receiving module is connected to an inserting type earphone for listening the sounds from the earphone.

Abstract: A palm type Dolby decoding earphone device comprises a Dolby decoder device having a sound effect input end; a sound effect output end; the sound effect input end having a digital optical fiber signal wire and an optical fiber input joint for connecting an external electronic device so that the sound effect input end can receive external digital sound signals; the Dolby decoder device serves to generate Dolby surrounding sound effect by the phase differences of the digital sound signals; at least one earphone set being connected to the sound effect output end for receiving the decoded sound signals from the control unit; each earphone set having two earphones for transmitting sound signals to the two ears of a user.

Abstract: Disclosed are method and apparatus for improving battery performance by transferring waste heat generated from heat generating components to the battery that, when brought to a high temperature, attains better performance according to temperature characteristics of the battery. According to the disclosure, an electronic device capable of effecting improved battery performance comprises a central processing unit generating waste heat when being operative; a battery for supplying power to said electronic device; and thermal conducting means, first end thereof making thermal contact with said central processing unit and second end thereof making thermal contact with said battery, causing heat transfer between said central processing unit and said battery. Said waste heat generated by said central processing unit is transferred to alter the temperature of said battery such that its output voltage is stabilized and capacity enlarged.

Abstract: A spoked wheel includes a wheel rim having a number of orifices, a number of spokes to be secured to the wheel rim, a number of anchors including an enlarged head and an enlarged latch extended from the head and a reduced neck portion formed between the latch and the head, to engage into and retained in the orifices of the wheel rim. The latch includes one or more slits to allow the latch to be engaged into the orifices of the wheel rim. A number of fasteners each includes an enlarged base and a shank having an inner thread for threading with the spokes. The fastener is retainable in the anchor when the wheel rim is disposed up-side-down, to allow the spoke to be easily threaded to the shank of the fastener, and to secure the fastener to the anchor.

Abstract: A USB power amplified trumpet connecting device comprises a digital conversion chip and a power amplifier chip on a circuit board; an input connected to a USB port as an input; and an output. The output is connected to one of an earphone, a trumpet, or an optical fiber terminal. The output seat is an optical output seat which is connected to an optical fiber terminal for further connecting to a decoding amplifier and then to a trumpet. Another the output can be an output wire; and the output wire is connected to a trumpet. The output is an output seat; and the output seat is able to output cable signals and optical fiber signals for being connected to one of an earphone, a trumpet and an optical fiber terminal.

Abstract: A USP power amplified trumpet connecting device is disclosed. A digital conversion chip and a power amplifier chip are installed to one USB port for being further connected to a trumpet so as to emit sound directly. Moreover, an output connector can be included. Thus the use of the USP power amplified trumpet connecting device is easy and can be portable easily. Moreover, the output connector can be connected to a trumpet and an earphone. The output connector is an optical fiber output connector which is connected to a decoder or an amplifier with optical fiber input so as to emit sound. The output connector includes a general used output and an optical fiber terminal for being connected to an optical fiber output, an earphone or an trumpet.

Abstract: A manual/pneumatic oil pumping device having a housing defining therein an oil reserving space and an upper cover. A floating board is disposed in the oil reserving space. The upper cover is equipped with a manual air sucking mechanism, a pneumatic air sucking mechanism and an oil sucking tube. The pneumatic air sucking mechanism is provided with a controlling unit. The control controlling unit includes a seat body, a valve body, a sleeve and a movable block. The movable block is fitted in the sleeve and has a downward extending projecting post. When the oil is pumped to fill up in the oil reserving space, the projecting post is upward pushed by the floating board to make movable block move upward. At this time, the leakproof washer on the movable block seals the through hole of the seat body and the push pin pushes the valve body away from the through hole so as to block the air sucking passage of the pneumatic air sucking mechanism.

Abstract: Disclosed are method and apparatus for improving battery performance by transferring waste heat generated from heat generating components to the battery that, when brought to a high temperature, attains better performance according to temperature characteristics of the battery. According to the disclosure, an electronic device capable of effecting improved battery performance comprises a central processing unit generating waste heat when being operative; a battery for supplying power to said electronic device; and thermal conducting means, first end thereof making thermal contact with said central processing unit and second end thereof making thermal contact with said battery, causing heat transfer between said central processing unit and said battery. Said waste heat generated by said central processing unit is transferred to alter the temperature of said battery such that its output voltage is stabilized and capacity enlarged.