FIELD OF THE INVENTION
The present invention relates to a network audio file receiver system for connecting a home stereo to a wide band network, more particularly to a system enabling a home stereo to play audio files sent from an Internet radio or run a play program to play audio files downloaded from the Internet and stored in the hard disk of a PC.
BACKGROUND OF THE INVENTION
The booming of LAN (Local Area Network) and the Internet not only increases information communication but also increases information communication rate and quality. Further, the information communication cost is reduced, information communication is facilitated, and information is even widely spread due to the availability of inexpensive computers. Currently, a person may download any free audio files (e.g., audio files in the form of MP3, WMA, and WAV) from the Internet to a computer coupled thereto, and then run a play program installed in the computer to play the audio files or retrieve audio files from an Internet radio over the Internet. Unfortunately, the conventional home stereo can only play a typical media or receive the sound waves from a radio station rather than play audio files from an Internet radio over the Internet or play audio files from the hard disk of a computer in which the audio files have been downloaded from the Internet and stored therein. Hence, a need for improvement exists.
SUMMARY OF THE INVENTION
A primary object of the present invention is to provide a network audio file receiver system for connecting a home stereo to a wide band network. The network audio file receiver system comprises a home stereo, a network audio file receiver, an Internet protocol sharing device, a PC and a wide band modem wherein the Internet protocol sharing device is coupled to the network audio file receiver, the wide band modem and the PC respectively; the network audio file receiver is coupled to the home stereo and comprises at least one of TCP/IPs and a play program; the network audio file receiver uses the corresponding TCP/IP to receive audio files sent from an Internet radio via the Internet protocol sharing device and the wide band modem when the wide band modem is coupled to the Internet, enabling the home stereo to play the audio files thereafter; and when the network audio file receiver is not coupled to the Internet, the home stereo or the play program is adapted to play audio files downloaded from the Internet and stored in the hard disk of the PC.
By utilizing the present invention, it is possible of enabling a home stereo to play audio files sent from an Internet radio or run a play program to play audio files stored in the hard disk of a PC, and overcoming the above drawbacks of the prior art, such as the conventional home stereo can only play a typical media or receive the sound waves from a radio station rather than play audio files from an Internet radio by connecting to the Internet and cannot play audio files from the hard disk of a computer in which the audio files have been downloaded from the Internet and stored in the hard disk.
The above and other objects, features and advantages of the present invention will become apparent from the following detailed description taken with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram of the invention; and
FIG. 2 is a block diagram of a preferred embodiment of network audio file receiver system according to the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIG. 1, there is shown a network audio file receiver system for connecting a home stereo to a wide band network (e.g., the Internet) in accordance with the invention comprising a home stereo 11, a network audio file receiver 12, an Internet protocol sharing device 13, a PC (personal computer) 14, and a wide band modem 15. The Internet protocol sharing device 13 is coupled to the network audio file receiver 12, the wide band modem 15, and the PC 14 respectively. When the wide band modem 15 is coupled to the Internet, packets from the Internet can be sent to the Internet protocol sharing device 13 via the wide band modem 15. The Internet protocol sharing device 13 then sends the packets to the PC 14 or the network audio file receiver 12 by using a corresponding TCP/IP (Transmission Control Protocol/Internet Protocol). The network audio file receiver 12 comprises at least one of TCP/IPs and a play program, and is coupled to the home stereo 11.
Referring to FIG. 1 again, when the wide band modem 15 is coupled to the Internet, the network audio file receiver 12 may use a corresponding TCP/IP to receive audio files sent from an Internet radio via the Internet protocol sharing device 13 and the wide band modem 15. The audio files are then played out by the home stereo 11.
When the wide band modem 15 is not coupled to the Internet, the network audio file receiver 12 is also adapted to couple to the PC 14 via the Internet protocol sharing device 13, enabling the home stereo 11 to play audio files (e.g., audio files in the form of MP3, WMA, and WAV) downloaded from the Internet and stored in the hard disk of the PC 14.
Referring to FIG. 2 in conjunction with FIG. 1, the network audio file receiver 12 comprises a CPU (central processing unit) 21, a display (e.g., LCD (liquid crystal display)) 22, a flash memory 23, a SDRAM (static dynamic random access memory) 24, a keyboard 25, an IR (infrared) signal receiver 26, a PCMCIA (Personal Computer Memory Card International Association) card controller 27, a PCMCIA port 28, an Ethernet controller 29, an Ethernet port 210, an DAC (digital-to-analog converter) 211, an audio output interface 212, an AM (amplitude modulation)/FM (frequency modulation) tuner 213, and an IR remote controller 214. The CPU 21 has been installed with a play program for playing audio files in the form of MP3, WMA, and WAV and is able to send data being processed (or processed data) to the display 22 for showing. The CPU 21 can also store the data being processed in the SDRAM 24 and then process the data therein in a TDMA (time division multiple access) manner. The CPU 21 further can either write the processed data into the flash memory 23 or read the data from the flash memory 23. A user may use the keyboard 25 to input a command to the CPU 21 for executing an operation corresponding to the received command. Alternatively, a user may use the IR remote controller 214 to input a command to the IR signal receiver 26, the IR signal receiver 26 then sends the same to the CPU 21 for executing an operation corresponding to the received command. The PCMCIA port 28 is coupled to a PCMCIA card (not shown), enabling the PCMCIA card controller 27 to control the signal communication between the PCMCIA card and the CPU 21. The Ethernet port 210 is coupled to the Internet protocol sharing device 13 (see FIG. 1), enabling the Ethernet controller 29 to control the signal communication between the Internet and the CPU 21 via the Internet protocol sharing device 13. The audio output interface 212 is coupled to the home stereo 11 (see FIG. 1), which enables the CPU 21 to send the audio files received from the Internet radio or the audio files downloaded from the Internet and stored in the hard disk of the PC 14 to the DAC 211. In the DAC 211, the audio files are converted into analog ones which are in turn sent to the home stereo 11 via the AM/FM tuner 213. Eventually, the audio files are played out by the home stereo 11 via its left and right channels.
Referring to FIG. 2 again, a user may input commands by means of the keyboard 25 to set TCP/IP of the network audio file receiver 12 for listening to a desired Internet radio. Alternatively, the user may use the IR remote controller 214 to set TCP/IP associated with a desired Internet radio or play the audio files downloaded from the Internet and stored in the hard disk of the PC 14.
Referring to FIG. 2 again, the CPU 21 of the network audio file receiver 12 comprises a DHCP (dynamic host configuration protocol) so as to dynamically set TCP/IP of each Internet radio.
Referring to FIG. 1 again, when a wireless network transceiver 121 having a PCMCIA port is connected to the PCMCIA port 28 of the network audio file receiver 12, the network audio file receiver 12 is served as a wireless network audio file receiver 16. Thus, when a wireless network transceiver 131 is installed in the Internet protocol sharing device 13, the Internet protocol sharing device 13 is able to communicate signals with the wireless network audio file receiver 16 via the wireless network transceiver 131.
Summing up the above, the home stereo 11 of the invention is able to play audio files sent from an Internet radio or play audio files downloaded from the Internet and stored in the hard disk of the PC 14.
While the invention has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.
Patent Application
20060047812
