Patent Application
20080166964
1. Field of the Invention
The present invention relates to wireless transmission technology and more particularly, to a wireless transmission arrangement, which uses a wireless transmission device to transmit signals wirelessly from a host to a monitor for display.
2. Description of the Related Art
Following fast development of high technology, personal computer has become one of the requisite appliances in every family and office.
People may use a computer to handle different things for different purposes. Advanced computers provided versatile functions. Nowadays, multimedia computers have become very popular. A multimedia computer may be used for inputting, editing, and/or playing AV data. Further, in addition to a mouse, a keyboard, a display screen, and speakers, a computer may be further equipped with other peripheral apparatus such as printer, scanner, webcam, card reader, etc. Following fast cost down, everybody can afford these computer peripheral apparatus.
However, when many peripheral apparatus (mouse, keyboard, display screen, speaker, printer, scanner, webcam, card reader, etc) are used, the connection between the host computer and the peripheral apparatus becomes complicated. Because of the limitation of cables, the peripheral apparatus of a computer system cannot be placed at a far place from the host computer. However, it is difficult to keep all connection cables between the host computer and the peripheral apparatus in a good order. These cables may be tangled or stretched accidentally. Further, when connecting a monitor or other peripheral apparatus to a host computer, the interface matching must be well checked.
The aforesaid USB-to-VGA adapter A is capable of converting USB format into VGA format so that the monitor C can display signals from the host computer B. However, this wired connection method still has drawbacks. The USB-to-VGA adapter A is connectable only between a host computer having a USB interface and a monitor having a VGA interface. If the host computer does not provide a USB interface or the monitor does not provide a VGA interface, the USB-to-VGA adapter A becomes unworkable.
Therefore, it is desirable to provide a connection method between a host computer and a monitor that eliminates the aforesaid drawbacks.
The present invention has been accomplished under the circumstances in view. According to one aspect of the present invention, the wireless transmission arrangement is to use a wireless transmission device between an external host and an external monitor to receive a wireless signal from the external host, to decode the wireless signal and convert the decoded wireless signal into a monitor readable signal by means of a processing unit of the wireless transmission device, to transmit the monitor readable signal to the monitor wirelessly by means of the wireless transmission device, and to let the monitor receive the monitor readable signal by means of a wireless transmission unit thereof and then display the signal.
According to another aspect of the present invention, the wireless transmission device further comprises an expansion unit, which comprises a bus control interface for the connection of a matching bus control interface of an external electronic device such as mouse, keyboard, printer, PDA, memory stick, notebook computer, etc.
Referring to
The wireless transmission device 2 has built therein a first wireless transmission interface 21 at one side and a second wireless transmission interface 22 at the other side. The first wireless transmission interface 21 is adapted to receive signal from the wireless transmission unit 11 of the host 1 wirelessly, and to send the received signal to the processing unit 22, which uses an internal bridge 221 to decode the signal and to convert the decoded signal into a signal readable to the monitor 3. The second wireless transmission interface 22 transmits the monitor readable signal from the bridge 221 to the wireless transmission unit 31 of the monitor 3 for display.
Referring to
Further, the aforesaid processing unit 22 controls the wireless transmission interfaces 21 and 23 and the bridge 221 to achieve respective function. After the bridge 221 has decoded the received signal and converted it into a monitor readable signal, the processing unit 22 controls the second wireless transmission interface 23 to transmit the monitor readable signal to the wireless transmission unit 31 of the monitor 3, for enabling the monitor 3 to display the signal from the host 1. Therefore, when the host 1 is equipped with a display card, the wireless transmission unit 11 can transmit a signal of the display card to the monitor 3 for display, i.e., the wireless transmission device 2 works to transmit/receive signal between the host 1 and the monitor 3, thus omitting wired connection between the host 1 and the monitor 3 and eliminating limitation of conventional connection interface means and other transmission problems such as SUB or VGA interface matching problem.
Further, the aforesaid monitor 3 can be a VGA monitor, PCI monitor or AGP monitor.
When the aforesaid expansion unit 24 or wireless transmission interface 21 receives a wired or wireless signal from the electronic device 4, the signal is sent to the processing unit 22, and then decoded and converted into a monitor readable signal by the processing unit 22, and then the wireless transmission interface 23 transmits the monitor readable signal to the monitor 3 for display. When a user wishes to store a signal from the electronic device 4, the host 1 fetches the signal from the electronic device 4 through the wireless transmission device 2, enabling the electronic device 4 to send the signal through the bus control interface 41 or the wireless transmission unit 42 to the expansion unit 24 or the wireless transmission interface 21 of the wireless transmission device 2, and the signal is then processed by the processing unit 22 into a host readable signal, which is then transmitted wirelessly by the wireless transmission interface 21 to the wireless transmission unit 11 of the host 1 for storing in the host 1.
Further, the bus control interface 41 or the wireless transmission unit 42 of the electronic device 4 enables the electronic device 4 to transmit a signal to the wireless transmission device 2 for processing into a monitor readable or host readable signal for further transmission by the wireless transmission device 2 to the monitor 3 or the host 1 wirelessly. The electronic device 4 can also obtain a signal from the host 1 through the wireless transmission device 2. In this case, the processing unit 22 processes the signal received from the host 1 into an electronic device readable signal, and then the wireless transmission interface 21 or the expansion unit 24 transmits the electronic device readable signal to the wireless transmission unit 42 or the bus control interface 41 of the electronic device 4. Thus, the electronic device 4 can receive and store the signal from the host 1.
The aforesaid wireless transmission/receiving method can be achieved by means of bluetooth, infrared, radio frequency or any of a variety of other wireless transmission techniques. By means of the functioning of the wireless transmission device 2, the user can place the monitor 3 on any location within the effective range of the wireless transmission device 2 for displaying signals from the host 1.
As stated above, the host 1 is equipped with a wireless transmission unit 11 capable of transmitting a signal to the wireless transmission interface 21 of the wireless transmission device 2 wirelessly. Upon receipt of a wireless signal, the wireless transmission interface 21 sends the wireless signal to the processing unit 22 for processing into a monitor readable signal for enabling the monitor readable signal to be further transmitted by the wireless transmission interface 23 to the wireless transmission unit 31 of the monitor 3 so that the monitor 3 can display the signal of the host 1. The use of the wireless transmission device 2 eliminates the limitations and drawbacks resulted from a wired connection between the host 1 and the monitor 3.
Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
