M404998 五、新型說明： 【新型所屬之技術領域】 本創作係有關於一種集線器，特別是有關於一種通用 串列匯流排集線器（USB hub)。 【先前技術】 通用串列匯流排(Universal Serial Bus ;以下簡稱USB) _ 可說是最成功的電腦連接埠，幾乎每台電腦上都具備USB _ 連接埠，並且大部分的週邊裝置（如隨身碟、數位相機、讀 卡機等）均透過USB連接埠與電腦進行資料傳輸。 目前常用的USB連接埠係為USB 2.0連接埠。USB 2.0 的傳輸速度約為400Mbps。當多個USB 2.0裝置欲與電腦 進行連接，而電腦的USB 2.0連接埠的數量又不足時，則 可透過一集線器（hub)，將多個USB 2.0裝置與電腦進行連 接。 然而，隨著科技的進步，USB 3.0裝置也逐漸出現。若 φ 透過USB 2.0集線器將USB 3.0裝置與電腦進行連接時， ' 則無法達到快速傳輸（至少4.8Gbps)的目的。因此，市場上 亦發展出USB 3.0集線器。 一般而言，USB 3.0集線器通常具有多個USB 3.0連接 埠，但是USB 3.0裝置並不多見。因此，可能造成只使用 到USB 3.0集線器的單一 USB 3.0連接埠，而集線器的其 它USB 3.0連接埠為閒置狀態。 另外，目前較常見的是USB 2.0裝置。因此，許多使 用者已具有一 USB 2.0集線器。若為了單一 USB 3.0裝置 M404998 而再購貝USB 3.0集線态時，可能造成使用空間變小，並 且热法讓USB 3.0集線器發揮最大功用。 " 【新型内容】 為避免過多閒置的USB 3.0連接埠，並且可兼顧到Usb 2.〇裝置，本創作之目的在於提供―種USB集線器，藉由 單一 USB 3.0連接4，便可避免發生連接埠閒置的現象， 並可降低成本。另外，USB 3.0連接埠亦可連接USB 2 〇 裝置’故可增加集線器使用的彈性。 為達到上述目的，本創作提供一種通用串列匯流排集 線器，包括一向上支援連接埠、一第一向下支援連接埠： —第二向下支援連接埠以及一 USB 2 〇控制器。向上支援 連接埠可_-主機的-USB 3.G連接蟑，用以與主機^ 行資料傳輸。第一向下支援連接埠選擇性地操作在一第一 模式以及-第二模式中。在第—模式中，第—向下支援連 接璋耗接一第一 USB 2 〇裝置。在第二模式中，第—向下 支援連接埠減_USB 3G裝置。第—向下支援連接蜂根 據向上支㈣料所接收到的資料，提供—第— 一謂2.〇裝置或USB 3.0裝置，或是根據第-咖2弟 裝置或USB 3·〇裝置所提供的資料，提供一第二 & 上支援連接埠。第二向下支援賴USB 2°π Γ並：Γ，0控制器處理向上支援連接蟑所接收到的資 料亚將處理後的結果傳送至第一及第=向下祕 谭’或是處理第-或第二向下支援連料所接收次 料’並將處理後的結果傳送至向上支援連接埠〇 貝、 M404998 • 為讓本創作之特徵和優點能更明顯易懂，下文特舉出 較佳實施例，並配合所附圖式’作詳細說明如下： 【實施方式】 第1圖為本創作之USB集線器之一可能實施例。如圖 所示，USB集線器1〗〇具有向上支援連接_ (upstj>eam port)lll、向下支援連接埠（downstream port)l 12、113 以及 - USB 2.0 控制器 114。 癱 肖上支援連接埠111可選擇性地傳送USB 3 ( 攀 或USB 2.0的信號。在本實施例中，向上支援連接蜂^ 係耦接到主機120的USB 3.0連接埠121，用以接收來自 主機120的資料，或是提供資料予主機12〇。在其它實施 例中，向上支援連接埠111可耦接主機120的USB 2 〇連 接埠（未顯示）。 ' 在本實施例中，為了可傳送USB 2 〇及USB 3 〇的信 號，向上支援連接埠U1具有傳輸端tx_、tx+、rx_、rx+、 φ D+及D-。傳輸端丁Χ·、τχ+、RX—及RX+用以傳送υ§Β 3 〇 -的信號。傳輸端D+及D-用以傳送USB 2.0的信號。舉例 而5，當向上支援連接埠111與USB 3.0連接埠12〗連接 日可’則向上支援連接埠ηι可透過τχ_、τχ+、ΚΧ^ RX+ 與主機120進行USB 3.0的信號傳輸。當向上支援連接埠 111與主機120的USB 2.0連接蜂連接時，則向上支援連 接埠111透過D+及D_與主機12〇進行USB 2 〇的信號傳 輸。 向下支板連接痒112可耦接週邊裝置丨3〇，用以根據週 5 二= 的種類’選擇性地操作在—第一模式以及一第 可，例中，當週邊裝置⑽為_·。 向下:援連接皐112操作在第一模式。此時， 下支棱連接埠U2可透過傳輸端 進行USB 2,0的信號傳輸。 』遺裝置130 置可f實施例中’當週邊裝置130為聰3.0裝 則向下支援連接埠⑴操作在第二模式。在此例中， 二週Μ透過傳輸端TX_、TX+、叹及RX+ 裝置13G進行USB 3 q的信號傳輸。 連接向下支援連接埠112可根據向上支援 !30 p i的資料，提供一第-資料予週邊裝置 L f邊裝置130所提供的資料，提供一第二資 枓予向上支援連接埠Π1。 上支實施例中’向下支援連接璋112係直接將向 ^連接埠]U所接收到的資料提供予週邊裝置】3〇， =將週邊裝置⑽所提供的資料提供予向上支援連接埠 111 ° 理㈣可更包括-處 & - 115處理來自主機120或週邊裝置13〇 ' B 3.G的H用以使得USB 3 G信號能傳遞的更遠 跟更精確，不會受到其他干擾。舉例而言 =支援連接璋⑴所接收到的刪3·。的信號，再； 处王 < 的結果透過向下支援連接彳U2提供予週邊裝置 130。在另—可能實施例中，處理器」]5處理向下支援連接 埠H2所接收到的湖3 〇的信號，再將處理後的結果透 M404998 過向上支援連接瑋]]】提供予主機]20。 本創作並不限定處理器1]5的種類。處理器的功能可 H =解碼魏、放大魏等，❹m聰3騎號預先 處理再加以還原。在一可能實施例中，處理器ι]5係為一 =解碼器，用以對USB3.G的信號進行編碼及/或解碼，以 _訊。在另一可能實施例中，處理器 器：用以放大⑽3.0的錢。在第丨圖跟第二放： 跟處理器215標示為虛線框，是表示當信號傳遞 離 是可以不用額外加上此元件，而當信號傳遞距 …、乂，則可考慮添加此元件在傳遞路徑中間。一般來 坭，可稱處理器115跟處理器2]5為一中繼器。 施财’處理器115僅處理USB;.0的信號（來 合ΐ療埠111或向下支援連接埠n2)。處理器115 在=處理USB 2.0的信號。舉例而言，當週邊裝置⑽ B 2’0裝置時’處理器115並不會處理來自週邊裝置 =的USB 2.0的信號。同樣地，當向上支援連接谭⑴ =到刪2.0連接埠時，處理器⑴並不會處理來自向 上支杈連接埠111的USB 2 0的信號。 施例中’向下支援連接谭112可選擇性地傳送 定·^5錢USB 2‘0的信號（視週邊裝置的種類而 丈），因此可增加咖集線器m的使用彈性。 中，連接# 113耦接週邊裝置140。在本實施例 支】4G係為—咖2.〇裝置。如圖所示，向下 4=二113透過傳輸端D·及D+與週邊裳置Μ。進行 USB 2·0的信號傳輸。 7 USB2.0控制器n4處理向上支援連接埠ηι*接收到 SB 2.0的信號，並將處理後的結果傳送至向下支援連接 蜂112及n3，或是處理向下支援連接埠112或⑴所接 J的USB 2.0的尨號，並將處理後的結果傳送至 援連接埠in。 久 在本實施例中’向下支援連接埠112及113均可傳輪 USB 2.0的信號，故在目前以USB 2 〇裝置為主流的情況 下’仍可配合使用者的需求。另外’本創作具有單一卿3 〇 連接埠（如112)，不但可接收USB 3 〇的信號，並且不合大 幅增加成本（因不需使用USB3.G控制器），或是增加電ς的 複雜度。 另外，在第1圖中，USB集線器11〇係設置在主機12〇 之外然而’在其它貫施例中，USB集線器no可整合在 主機120之中。本創作並不限定主機的種類。在一可能實 施例中’主機12G可為桌上型電腦或是筆記型電腦。 第2圖為本創作之USB集線器之另一可能實施例。第 ㈣第i圖’不同之處在於第2圖的湖集線器2】〇 少了向下支援連接埠216及217，其僅支援USB2.0週邊裝 置250、260。在一可能實施例中，僅支援腦2 〇週邊裝 置的向下支援連接埠至多可達七個或以上只要符合 集線器的規範内。由於第2圖的其它元件的原理與第】圖 相似，故不再贅述。 向下支棱連接槔216及217分別耗接到週邊裝置25〇 及260’亚透過傳輸端d+及D_與週邊裝置25〇及2⑼進行 USB 2.0的信號傳輸。在本實施例中，向下支援連接淳犯、 Μ4Θ4998 川及2】7僅能傳輸USB 2,〇的信號，而向下支援連接痒 212及向上支援速接埠2]】可傳輸USB 2 〇或υ§Β 3 〇的信 號（視週邊裝置230的種類而定）。 由於本創作的USB集線器僅具有單—USB 3 〇連接 埠’故可避免閒置的連接埠，並可降低成本（不需使用 3‘〇控制器）。再者’本創作的聰3 〇連接棒亦可連接⑽ 2.0裝置’故可增加使用的彈性。 雖然本創作已以較佳實施例揭露如上，然其並非用以 限定本創作，任何所屬技術領域中具有通常知識者，在不 脫離本創作之精神和範圍内，當可作些許之更動盘潤飾， 因此本創作之保護範圍當視後附之申請專利範_界 為準。 【圖式簡單說明】 第1圖為本創作之USB集線器之一可能實施例。 第2圖為本創作之USB集線器之另一可能實施例。 【主要元件符號說明】 110、210 : USB 集線器； Π1、211 :向上支援連接埠； Π2、113、212、213、216、217 :向下支援連接蜂. Π4、214: USB 2.0 控制器； 115、215 :處理器； 130、140、230、240、250、260 :週邊裝置； 120 :主機； 121 : USB 3.0 連接埠。 9M404998 V. New Description: [New Technology Field] This creation is about a hub, especially a general-purpose serial bus hub (USB hub). [Prior Art] Universal Serial Bus (USB) _ can be said to be the most successful computer connection, almost every computer has a USB _ port, and most of the peripheral devices (such as portable Discs, digital cameras, card readers, etc.) are transmitted to and from the computer via a USB port. Currently commonly used USB ports are USB 2.0 ports. USB 2.0 has a transfer speed of approximately 400Mbps. When multiple USB 2.0 devices are to be connected to a computer and the number of USB 2.0 ports on the computer is insufficient, multiple USB 2.0 devices can be connected to the computer through a hub. However, with the advancement of technology, USB 3.0 devices have gradually emerged. If φ connects a USB 3.0 device to a computer via a USB 2.0 hub, 'the fast transfer (at least 4.8 Gbps) cannot be achieved. Therefore, USB 3.0 hubs have also been developed in the market. In general, USB 3.0 hubs typically have multiple USB 3.0 ports, but USB 3.0 devices are rare. As a result, it is possible to use only a single USB 3.0 port to a USB 3.0 hub, while the other USB 3.0 ports of the hub are idle. In addition, the more common one is the USB 2.0 device. Therefore, many users already have a USB 2.0 hub. Repurchase the USB 3.0 set line state for a single USB 3.0 device M404998, which may result in a smaller space for use, and the thermal method allows the USB 3.0 hub to maximize its usefulness. " [New Content] In order to avoid excessively idle USB 3.0 ports and to take advantage of the Usb 2. device, the purpose of this creation is to provide a USB hub that can be connected by a single USB 3.0 connection 4. The phenomenon of idleness and cost reduction. In addition, the USB 3.0 port can also be connected to the USB 2 装置 device, which increases the flexibility of the hub. To achieve the above objective, the present invention provides a universal serial bus hub including an upward support port, a first down support port: a second down support port, and a USB 2 port controller. Upward support The connection between the host and the USB-G 3.G port is used to transfer data to and from the host. The first downward support port is selectively operated in a first mode and a second mode. In the first mode, the first-down support connection consumes a first USB 2 device. In the second mode, the first-down support connection reduces the _USB 3G device. The first-down support connection bee provides the first-to-one device or USB 3.0 device according to the information received by the upper branch (four), or according to the device of the second coffee device or the USB device. The information is provided on a second & support link. The second downward support depends on USB 2°πΓ and: Γ, 0 controller handles the data received by the upward support link, and the result of the processing is transmitted to the first and the second=down secret tantalum' or processing - or the second downward support for receiving the received material' and the processed result is transmitted to the upward support connection mussel, M404998. • To make the features and advantages of this creation more obvious, the following is a special The preferred embodiment is described in detail with reference to the following drawings: [Embodiment] FIG. 1 is a possible embodiment of a USB hub of the present invention. As shown in the figure, the USB hub 1 has an upward support connection _ (upstj>eam port) 111, a downward support port (downstream port) 12, 113, and a USB 2.0 controller 114. The support port 111 can selectively transmit a USB 3 (Pan or USB 2.0 signal. In this embodiment, the upward support connection is coupled to the USB 3.0 port 121 of the host 120 for receiving from The data of the host 120 or the data is provided to the host computer 12. In other embodiments, the upward support port 111 can be coupled to the USB port 2 (not shown) of the host 120. In this embodiment, The signals of USB 2 〇 and USB 3 传送 are transmitted, and the connection is supported upwards. U1 has transmission terminals tx_, tx+, rx_, rx+, φ D+ and D-. The transmission terminals Χ, ·τχ+, RX- and RX+ are used for transmission. § Β 3 〇 - signal. Transmission terminals D+ and D- are used to transmit USB 2.0 signals. For example, 5, when the support port 向上111 and USB 3.0 are connected to the port 〗12, the connection date can be 'upward support connection 埠ηι USB 3.0 signal transmission is performed with the host 120 through τχ_, τχ+, ΚΧ^ RX+. When the upward support port 111 is connected to the USB 2.0 connection of the host 120, the support port 111 is transmitted through the D+ and D_ and the host 12 〇Send USB 2 信号 signal transmission. Connect the itch to the lower support plate 112 The peripheral device 耦3〇 is coupled to selectively operate in the first mode and the first mode according to the type of the week 5=, in the example, when the peripheral device (10) is _·. The operation is in the first mode. At this time, the lower edge connection 埠U2 can transmit the signal of USB 2,0 through the transmission end. The legacy device 130 can be set to f in the embodiment, when the peripheral device 130 is loaded with Cong 3.0 The support port (1) operates in the second mode. In this example, the signal transmission of the USB 3 q is performed through the transmission terminals TX_, TX+, and the RX+ device 13G. The connection support link 112 can be supported according to the upward support! 30 pi of data, providing a first-data to the peripheral device L f side device 130 to provide information, providing a second asset to the upward support connection 埠Π 1. In the above embodiment, the 'downward support connection 璋 112 series directly The data received from the connection port is provided to the peripheral device. 3〇, = the information provided by the peripheral device (10) is provided to the upward support port 埠 111 ° (4) may further include - the location & - 115 processing comes from Host H or peripheral device 13 〇 'B 3.G H is used to make The USB 3 G signal can be transmitted farther and more accurately without any other interference. For example, the support signal 璋(1) receives the deleted signal, and the result of the king < The port 彳U2 is provided to the peripheral device 130. In another embodiment, the processor ”5 processes the signal of the lake 3 向下 received by the support 埠H2, and then passes the processed result to the M404998. The connection 玮]]] is provided to the host]20. This creation does not limit the type of processor 1]5. The function of the processor can be H = Decode Wei, amplify Wei, etc., and the ❹m Cong 3 riding number is pre-processed and then restored. In a possible embodiment, the processor ι]5 is a = decoder for encoding and/or decoding the signal of the USB 3.G. In another possible embodiment, the processor: to amplify (10) 3.0 money. In the second diagram and the second release: the processor 215 is marked as a dashed box, which means that when the signal is transmitted, the component can be added without additional, and when the signal is transmitted from ..., 乂, then the component can be considered to be transmitted. In the middle of the path. Generally, the processor 115 and the processor 2] 5 are referred to as a repeater. The "Financing" processor 115 processes only the USB; .0 signal (to the 埠 111 or the downward support 埠 n2). The processor 115 is at = processing the USB 2.0 signal. For example, when the peripheral device (10) B 2'0 device, the processor 115 does not process the USB 2.0 signal from the peripheral device. Similarly, the processor (1) does not process the signal from the USB 200 of the upstream support port 111 when the support tan (1) = up to the delete 2.0 port is supported. In the embodiment, the downward support link Tan 112 can selectively transmit the signal of the USB 2'0 (depending on the type of peripheral device), so that the flexibility of use of the coffee hub m can be increased. The connection #113 is coupled to the peripheral device 140. In the present embodiment, the 4G system is a coffee maker. As shown in the figure, downward 4 = two 113 through the transmission end D · and D + and the surrounding skirt. Perform USB 2·0 signal transmission. 7 USB2.0 controller n4 processes the upward support link 埠ηι* to receive the SB 2.0 signal, and transmits the processed result to the downward support connection bee 112 and n3, or handles the downward support connection 埠 112 or (1) Connect the USB 2.0 nickname and transfer the processed result to the support port. In the present embodiment, the downward support ports 112 and 113 can transmit the USB 2.0 signal, so that the current USB 2 device is still in the mainstream can still meet the needs of users. In addition, 'this creation has a single 3 〇 connection (such as 112), not only can receive the USB 3 〇 signal, and does not significantly increase the cost (because no need to use the USB3.G controller), or increase the complexity of the eDonkey . Further, in Fig. 1, the USB hub 11 is disposed outside the host 12's. However, in other embodiments, the USB hub no may be integrated in the host 120. This creation does not limit the type of host. In a possible embodiment, the host 12G can be a desktop or a notebook. Figure 2 is another possible embodiment of the USB hub of the present invention. The fourth (i)th figure differs in that the lake hub 2 of Fig. 2 has fewer downward support ports 216 and 217, and only supports USB 2.0 peripheral devices 250 and 260. In a possible embodiment, only the downward support connection of the brain 2 peripheral device is supported up to seven or more as long as it conforms to the specification of the hub. Since the principle of the other elements of Fig. 2 is similar to that of Fig. 1, it will not be described again. The downward ribs 216 and 217 are respectively connected to the peripheral devices 25 〇 and 260 ′ through the transmission terminals d+ and D_ and the peripheral devices 25 〇 and 2 ( 9 ) for USB 2.0 signal transmission. In this embodiment, the downward support connection 、, Μ4Θ4998 川 and 2]7 can only transmit the USB 2, 〇 signal, and the downward support connection itch 212 and the upward support quick connection ] 2] can transmit USB 2 〇 Or υ§ 3 〇 signal (depending on the type of peripheral device 230). Since the USB hub of this creation has only a single-USB 3 connection, it can avoid idle connections and reduce costs (no need to use a 3 '〇 controller). Furthermore, the Cong 3 〇 connecting rod of this creation can also be connected to the (10) 2.0 device, which increases the flexibility of use. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any person having ordinary knowledge in the art can make some changes to the retouching without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this creation is subject to the patent application scope attached to it. [Simple description of the drawing] Fig. 1 is a possible embodiment of a USB hub of the present invention. Figure 2 is another possible embodiment of the USB hub of the present invention. [Main component symbol description] 110, 210: USB hub; Π1, 211: Up support connection 埠; Π2, 113, 212, 213, 216, 217: Down support connection bee. Π4, 214: USB 2.0 controller; 115 215: processor; 130, 140, 230, 240, 250, 260: peripheral device; 120: host; 121: USB 3.0 port. 9