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Communication system, communication apparatus and control method thereof

A technology of a communication system and a control station, applied in the field of communication systems, can solve the problems of lack of convenience in the system, inability to provide multiple functions by multiple wireless terminals, and inability to connect to personal computers, etc.

Inactive Publication Date: 2008-12-17
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, there will be a problem that other WUSB devices cannot be connected to the personal computer while the adapter function is stopped
For this reason, the user needs to perform an operation for connecting or disconnecting the device to or from the wired interface in order to switch the operation mode, resulting in a lack of convenience in the system
[0018] Finally, according to the technology disclosed in Patent Document 3, printing and external connection are limited to a single wireless terminal, so multiple functions cannot be simultaneously provided to multiple wireless terminals that exist

Method used

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  • Communication system, communication apparatus and control method thereof
  • Communication system, communication apparatus and control method thereof
  • Communication system, communication apparatus and control method thereof

Examples

Experimental program
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no. 1 example

[0034] Fig. 1 is a diagram showing an example of the internal structure of a multiple control station according to a first embodiment of the present invention. at the same time, figure 2 Is a diagram showing an example of the structure of a wireless communication system according to the first embodiment of the present invention.

[0035] in figure 2 In this case, a multi-control station 201 with a printing function is connected to a personal computer 21 via a USB cable 23, and works as a wireless USB (WUSB) adapter. At the same time, the multiple control station (printer) 201 can also use wireless direct printing 53 to print photos from the terminal station (digital still camera) 52.

[0036] The internal hub 83 functions as a wired USB hub. The USB interface (I / F) unit 106 is connected to the internal hub 83 and serves as a wired USB interface. The printing function selection unit 105 selects one of the USB interface unit 106 and the wireless direct printing function unit 103, ...

no. 2 example

[0064] Next, a second embodiment according to the present invention will be explained in detail with reference to the drawings.

[0065] Note that the internal structure of the multiple control station 201 according to the second embodiment is the same as the internal structure shown in FIG. 1 and explained in the first embodiment, and therefore, its explanation is omitted here.

[0066] Figure 5 Is a diagram showing an example of the system configuration according to the second embodiment of the present invention. Such as Figure 5 As shown in the second embodiment, the system of the second embodiment includes a multi-control station 201, a personal computer 21, a digital still camera 52, and a WUSB hard disk (hereinafter referred to as a “hard disk”) 206. The hard disk 206 is connected to the personal computer 21 as a peripheral device of the personal computer 21. Therefore, the hard disk 206 transfers data to / from the personal computer 21 through the multiple control station ...

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PUM

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Abstract

A multiple control station (201) transmits a first broadcast frame including a first identifier for identifying a first host (202) and a second broadcast frame including a second identifier for identifying a second host (203) to a terminal station (52) over a wireless channel using time division. The multiple control station then receives a connection request frame that requests connection with the first host (202) or the second host (203) from the terminal station (52). Arbitration is then performed so that the terminal station is connected to the first host or the second host in accordance with the first identifier or the second identifier included in the received connection request frame.

Description

Technical field [0001] The invention relates to a communication system, communication equipment and a control method thereof. Background technique [0002] USB (Universal Serial Bus) is a conventional technology developed as a means for connecting peripheral devices to a personal computer. A personal computer is generally used as a host, and peripheral devices such as printers, image scanners, etc. are used as devices. [0003] However, in recent years, the USB standard has also been used to interconnect other consumer devices, and therefore, devices other than personal computers have also begun to be used as USB hosts. An example of this situation is a direct printing scheme, in which a digital still camera (DSC) and a printer are connected one-to-one via USB, and the photographed images stored in the digital still camera are printed out through the printer. In this case, the printer is used as the host, and the digital still camera is used as the device. [0004] Generally spea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/00H04L29/06H04N1/00H04N5/76H04N5/765H04W8/26H04W76/02H04W84/12H04W92/08
CPCG06F13/387G06F2213/3814H04N1/00236H04N1/00278H04N2101/00H04N2201/0015H04N2201/0044H04N2201/0055H04N2201/0062H04N2201/0084H04W4/06H04W8/26H04W48/08H04W48/20H04W76/10H04L47/10
Inventor 神田哲夫
Owner CANON KK
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