Patent Application
20050050390
(a) Field of the Invention
The invention relates to a digital data transmitter, and more particularly, to digital data transmitter that, without requiring computers as media, enables a user to directly transmit and store digital data stored in information products between the information products.
(b) Description of the Prior Art
Accompanied with rapid advancement of information technology, transmission rate and storage capacity of digital data are being significantly increased as well. Huge amounts of digital data are stored and accessed by computers from information products such as portable disks, pen recorders, personal digital assistants (PDA), personal video recorders (PVR), digital static cameras (DSC), universal serial bus (USB) compact disk read-only-memories (CD-ROM), audio/video (A/V) decoders, motion picture expert group 2layer3 (MP3) players, and card readers. In order to transmit data between these information devices, a commonly used method is to connect cables of these information devices to a computer, and then to transmit and store, or access one another's digital data using a computer host as a medium. However, this method is only completed in the presence of media namely computer hosts, meaning that a computer host is necessarily available at the time of transmission. It is recognized that computers are not always obtainable in actual situations, or one may not definitely find idle computers that can be applied. Thus, perplexities are often caused.
The primary object of the invention is to provide a digital transmitter through which, without requiring a computer as a medium, enables direct data transmission of digital data stored in various information products between the information products.
The digital data transmitter according to the invention comprises the characteristics of: a circuit board having at least a power circuit, a universal serial bus (USB) interface, a central processing unit (CPU) and two connectors. The connectors are high-speed transmission USB connectors. To transmit digital data stored in a specific information product to another information product, the two information products are connected to the high-speed connectors, thereby directly transmitting and storing data via the CPU.
According to the aforesaid characteristics, the high-speed transmission connectors are USB connectors.
To better understand the invention, detailed descriptions shall be given with the accompanying drawings hereunder. Referring to
According to the above structure, when a user inserts and connects an information product to the two connectors 41 and 42 of the digital data transmitter 1, respectively, through operations of the CPU 3, the digital data transmitter 1 first checks whether a source device (the information product having data to be outputted, and being connected to the connector 41) has an edit file (for example, s-box001). If yes, all data in the file are copied to the registers in the CPU 3. Or, if not, all contents under a root directory are copied to the registers in the CPU 3. Next, the digital data transmitter 1 checks whether a target storage device (the information product to which the data are to be stored, and being connected to the connector 42) has other edit files (for example, s-box001, where 001 is a serial number with every new copy made increased by 1) are present. If not, a new file named s-box001 is created. Or, if yes, a new filed named s-box002, or s-box003 and so on, is created. The contents of the source storage device temporarily stored in the registers are all copied to the file in the target storage device, thereby completing an object of transmitting data between information products (memory elements) at all time.
Referring to an embodiment shown in
To use the aforesaid structure to transmit digital data from an information product to another information product, USB connectors of two information products having data to be transmitted are connected with the connectors 41 and 42 of the digital data transmitter 1 according to the invention. The power switch 6 is turned on, and the selection button 7 is pressed, so as to select a specific file or all files for copying and storage. Via the CPU 3 according to the aforesaid method, digital data in the source storage device (the information product containing file sources) can be directly transmitted to the target device (the information product for storing data). The user, at the same time, is able to interpret operation status of the digital data transmitter 1 from the power indication lamp 8 and the status indication lamp 9.
Referring to
It is of course to be understood that the embodiments described herein are merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.
