Title of Invention

"USB POWER AMPLIFICATION SPEAKER ADAPTER UNIT."

Abstract

A USB power amplification speaker adapter having both of a digital conversion chip and a power amplification chip provided on an adapter of the same USB port to become an integrated unit; the circuits for the power amplification chip and the digital conversion chip not installed inside the speaker so to reduce the size of the speaker for easy portability, upgraded power amplification and better sound effects with the omission of sound blast card, AC power cable, transformer and USB cable by modifying the USB cable into a general speaker cable; and allowing multiple adaptation options for connecting the USB slot from a PC to directly produce the sound effects thanks to the absence of sophisticate installation.

Full Text

TITLE: USB POWER AMPLIFICATION SPEAKER ADAPTER UNIT BACKGROUND OF THE INVENTION (a) Technical Field of the Invention The present invention is related to a USB power amplification speaker adapter unit, and more particularly to one that has provided both of a digital conversion chip and a power amplification chip on an adapter of the same USB port to become an integrated unit; the circuits for the power amplification chip and the digital conversion chip are not installed inside the speaker to reduce the size of the speaker for easy portability, upgraded power amplification and better sound effects with the omission of sound blast card, AC power cable, transformer and USB cable by modifying the USB cable into a general speaker cable; and allows multiple adaptation options for connecting the USB slot from a PC to directly produce the sound effects thanks to the absence of sophisticate installation. (b) Description of the Prior Art Usually the speakers requires the connection of AC power line, transformer and USB cable with the circuits installed inside the speaker, resulting in larger speaker cabinet that prevents easy portability. Complicate installation of those cables and circuits prevents upgraded power, sound quality, and cost reduction that discourage the popular use of speakers. SUMMARY OF THE INVENTION The primary purpose of the present invention is to provide a USB power amplification speaker adapter that is more practical and easier in use by allowing multiple options of adaptation. To achieve the purpose, the USB is used as the interface to permit fast and easy application. Both of the digital conversion chip and the power amplification chip are provided o the adapter of the same USB port to become an integrated unit. Circuits of the digital conversion chip and the power amplification chip are not provided in the speaker cabinet so to reduce its size for easy portability, upgrading power amplification and achieving better sound effects. Sound blast card, AC power cable, transformer and USB cable are omitted by modifying the USB cable into that of the general speaker to avoid complicate installation. The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded view of the present invention. FIG. 2 is a perspective view of the present invention. FIG. 3 is a first preferred embodiment of the present invention with the output jack as the output. FIG. 4 is a second preferred embodiment of the present invention with the output jack as the output. FIG. 5 is a third preferred embodiment of the present invention with the output jack as the output. FIG. 6 is a schematic view of an assembly of the output of the present invention. FIG. 7 is a block chart showing the workflow of a digital conversion chip and a power amplification chip of the present invention. FIG. 8 is a schematic view showing that the present invention is connected to a PC. FIG. 9 is a schematic view showing that the present invention is connected to a notebook computer. FIG. 10 is a schematic view showing the relation between the digital conversion chip and the power amplification chip of the present invention. FIG. 11 is a schematic view of the relation between the digital conversion chip and the power amplification chip of the present invention as assembled. FIG. 12 is a view of a preferred embodiment of the present invention with a circuit board separated from a USB port. FIG. 13 is a view showing one way of connection of a preferred embodiment of the present invention. FIG. 14 is another view of another preferred embodiment of the present invention with the circuit board separated from the USB port. FIG. 15 is a view of an integrated unit of the present invention with the circuit board separated from the USB port. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims. Referring to FIG. 1, a USB power amplification speaker adapter unit A of the present invention is comprised of an upper lid B, a lower lid C, a circuit board D and a pair of speakers E. Wherein, a chip G (a digital conversion chip and a power amplification chip in one) is provided on the circuit board D and integrated with a USB port F. Both of the upper lid B and the lower lid C are incorporated to each other as illustrated in FIG. 2 and FIG. 8. The present invention A is adapted to a USB slot of a PC by the USB port F. As illustrated in FIGS. 3 and 4, the adapter unit A is respectively connected to an earphone unit K and the pair of speakers E through an output jack I; or alternatively, as illustrated in FIG. 5, the output jack I is connected to a optical fiber terminal L output. The output jack I may be converted into a dual-purpose connector to receive the insertion of an optical fiber terminal L and an earphone audio terminal J. Whereas the output jack I can be connected to the output of the pair of speakers E, the earphones unit K, or an optical fiber cable M, a device of output may be selected according to the needs of the user to expand the comprehensive application of the present invention, as illustrated in FIG. 6 for a schematic view of an output assembly showing the diversity and all-purpose of the present invention. Disregarding the type of the output device, the present invention may be connected to a PC through the USB port F to be converted by the chip G into signals to be outputted to any type as illustrated in the block chart of FIG. 7 showing the functions of the chip G. Wherein, all the flow processes of functions are integrated into the chip G while complying with its USB transmission protocol to execute transmission and operation. The USB protocol for being related to an open protocol of the prior art will not be elaborated herein. Now referring to FIGS. 8 and 9 for two preferred embodiments of the adapter unit A, wherein, a USB slot is provided to a PC H or a notebook computer N and the USB slot is connected to the adapter unit A for use. As illustrated in FIGS. 10 and 11, an output device is connected to the chip G to provide multiple applications. The chip G is also used to process the sound for increasing the folds of power amplification and achieving better sound effects. An extension cable Q of the USB is used to connect the adapter unit A to a PC in the way as illustrated in FIG. 13. Furthermore, a connection cable P is used to separate the USB port F from the circuit board D for the main portion of the circuit board O (comprised of the circuit board D and the upper and the lower lids B and C) to become a stand-alone unit as illustrated in FIG. 12. The output jack I is connected to the pair of speakers by a 3-way cable R as illustrated in FIG. 14. An output cable S connected to the main portion of the circuit board O (comprised of the circuit board D and the upper and the lower lids B and C) to function as the output as illustrated in FIG. 15. A comparison between the prior art and the present invention is made as follows to highlight the practical and advanced features of the present invention: On the part of the prior art, there are the following flaws: 1. Complicate installation procedure is required. 2. Experience in DIY assembly of a PC is required. 3. The AC power cable is required. 4. The transformer is required. 5. The circuit is provided in the cabinets of the pair of speakers resulting in poor sound effects and excessively large cabinet of the speaker to prevent from easy portability. 6. There is no way to upgrade the power. 7. Lacking in practical flexibility due to that only one way of adaptation is allowed. 8. Higher cost, less attractive to the consumers. 9. The absence of advanced features. 10. No value for industrial use. On the part of the present invention, it provides the following advantages: 1 .The circuit of the digital conversion chip and the power amplification chip is not provided in the pair of speakers. 2. DIY computer assembly experience is not a must. 3. It is not necessary to use the AC power cable. 4. No transformer is needed. 5. Both of the digital conversion chip and the power amplification chip are provided on the same USB port for connection thus to upgrade power and lower the cost. 6. Multiple options of adaptation are available to significantly increase the flexibility for the application. 7. Lower cost to attract more users. 8. No complicate installation procedure is required. 9. Give advanced features. 10. Improved utilities. 11. Give value for industrial use. It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above. While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention. I CLAIM: 1. A USB power amplification speaker adaptation unit being easy in use and portable to upgrade power amplification and improve sound effects is essentially comprised of a digital conversion chip and a power amplification chip provided on the same USB port to adapt to the pair of speakers and become an integrated adaptation unit to directly produce sound effects. 2. A USB power amplification speaker adaptation unit as claimed in Claim 1, wherein, a digital conversion chip, a power amplification chip and an output jack are all provided on the same USB port for connection into an assembly. 3. A USB power amplification speaker adaptation unit as claimed in Claim 2, wherein, the output jack is connected at the same time to the pair of speakers and a unit of earphones. 4. A USB power amplification speaker adaptation unit as claimed in Claim 2, wherein, the output jack is made in the form of an optical output jack connected to a decoder provided with an optical fiber input or to an amplifier. 5. A USB power amplification speaker adaptation unit as claimed in Claim 2, wherein, the output jack is made in the form of a combined socket for the output of general signals and the output of optical fiber signals to be connected to optical fiber output, earphones and the pair of speakers. 6. A USB power amplification speaker adaptation unit as claimed in Claim 2, wherein, a USB extension cable is used to connect the USB port to a computer. 7. A USB power amplification speaker adaptation unit has its circuit board to separate from the USB port; and the main portion of the circuit board is not installed inside the cabinet of the speaker but connected in series to the USB port to become an integrated unit. 8. A USB power amplification speaker adaptation unit, wherein, the extension cable is used to separate the circuit board from the USB port and output jack or a lead wire is extended to connect to the pair of speakers. 9. A USB power amplification speaker adaptation unit, wherein, the package members comprised of the USB adaptation unit, multiple lead wires and a pair of cabinets of the speakers; and those three members are separately connected to form three ways of adaptation. 10. A USB power amplification speaker adaptation unit substantially as herein described with reference to the accompanying drawings.

Documents:

1352-del-2003-abstract.pdf

1352-del-2003-claims.pdf

1352-del-2003-correspondence-others.pdf

1352-del-2003-correspondence-po.pdf

1352-del-2003-description (complete).pdf

1352-del-2003-drawings.pdf

1352-del-2003-form-1.pdf

1352-del-2003-form-19.pdf

1352-del-2003-form-2.pdf

1352-del-2003-form-3.pdf

1352-del-2003-gpa.pdf

1352-del-2003-petition -137.pdf