TW201815159A - HDMI device and method for controlling the same - Google Patents
HDMI device and method for controlling the same Download PDFInfo
- Publication number
- TW201815159A TW201815159A TW105132111A TW105132111A TW201815159A TW 201815159 A TW201815159 A TW 201815159A TW 105132111 A TW105132111 A TW 105132111A TW 105132111 A TW105132111 A TW 105132111A TW 201815159 A TW201815159 A TW 201815159A
- Authority
- TW
- Taiwan
- Prior art keywords
- multimedia interface
- resolution multimedia
- circuit
- slave
- control circuit
- Prior art date
Links
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
本發明是關於一種電子裝置,特別是支援高解析多媒體介面技術之電子裝置。The present invention relates to an electronic device, and more particularly to an electronic device supporting a high resolution multimedia interface technology.
近年來,隨著高解析多媒體介面(High Definition Multimedia Interface;HDMI)技術日漸普及,多數的電子裝置均有搭載HDMI連接埠,舉例來說,作為訊源端裝置之遊戲機、DVD、個人電腦及筆記型電腦,或是,作為訊源播放裝置之電視機、投影機及電腦顯示器。訊源端裝置與訊源播放裝置之間僅需一條HDMI傳輸線即可將包含音訊及視訊之HDMI訊號自訊源端裝置輸出至訊源播放裝置。例如,個人電腦可將顯示畫面及音訊延伸輸出至電視機進行影音播放。In recent years, with the increasing popularity of High Definition Multimedia Interface (HDMI) technology, most electronic devices are equipped with HDMI ports, for example, game consoles, DVDs, and personal computers as source devices. A notebook computer, or a television, projector, and computer monitor that acts as a source playback device. Only one HDMI transmission line between the source device and the source playback device can output the HDMI signal containing the audio and video from the source device to the source device. For example, a personal computer can output a display screen and audio output to a television for audio and video playback.
然而,在習知的HDMI技術中,訊源端裝置通常不支援播放其他訊源端裝置輸出之訊源的功能,而訊源播放裝置不支援將訊源輸出之功能,若為同時支援輸出訊源以及接收訊源進行播放之雙功能,電子裝置上勢必再增加一個HDMI連接埠,其中一HDMI連接埠用來接收來自其他訊源端裝置之HDMI訊號,而另一HDMI連接埠用來輸出訊源至其他訊源播放裝置,如此便造成電子裝置需容納的通訊埠數量增加,導致電子裝置之體積上升。若為避免增加通訊埠之數量,則勢必犧牲其他通訊埠例如USB連接埠之數量。再者,額外使用一個HDMI連接埠亦造成產品之生產成本上升。進一步,若電子裝置包含兩HDMI連接埠,使用者還必須依靠HDMI連接埠旁的標示才能辨識出兩HDMI連接埠中哪一者為訊源輸出埠,而哪一者為訊源接收埠,倘若辨識錯誤,HDMI傳輸線連接於錯誤的連接埠則導致訊源端播放裝置無法正常地播放訊源,如此造成使用者的不便。However, in the conventional HDMI technology, the source device generally does not support the function of playing the source output by other source devices, and the source device does not support the function of outputting the source. The dual function of the source and the receiving source for playing, the electronic device is bound to add an HDMI port, one of the HDMI ports is used to receive the HDMI signal from other source devices, and the other HDMI port is used to output the signal. Source to other source playback devices, which increases the number of communication ports that the electronic device needs to accommodate, resulting in an increase in the size of the electronic device. In order to avoid increasing the number of communications, it is necessary to sacrifice the number of other communications, such as USB ports. Furthermore, the additional use of an HDMI port also increases the production cost of the product. Further, if the electronic device includes two HDMI ports, the user must also rely on the label next to the HDMI port to identify which of the two HDMI ports is the source output port, and which one is the source receiving port, if If the error is recognized, the HDMI cable is connected to the wrong port, causing the source device to play the device normally, which is inconvenient for the user.
有鑑於此,本發明提出一種高解析多媒體介面裝置及其控制方法。In view of this, the present invention provides a high resolution multimedia interface device and a control method thereof.
在一實施例中,一種高解析多媒體介面裝置包含高解析多媒體介面連接埠、控制電路、主控電路、從屬電路及開關電路。控制電路用以產生一控制訊號;主控電路用以產生一主控高解析多媒體介面輸出訊號;從屬電路用以產生一從屬高解析多媒體介面輸出訊號;開關電路耦接於高解析多媒體介面連接埠及控制電路,開關電路用以根據控制訊號選擇性導通於一第一導通狀態及一第二導通狀態;當開關電路導通於第一導通狀態時,開關電路電性連接於主控電路,使主控高解析多媒體介面輸出訊號經由高解析多媒體介面連接埠輸出;當開關電路導通於第二導通狀態時,開關電路電性連接於從屬電路,使從屬高解析多媒體介面輸出訊號經由高解析多媒體介面連接埠輸出。In an embodiment, a high resolution multimedia interface device includes a high resolution multimedia interface port, a control circuit, a main control circuit, a slave circuit, and a switch circuit. The control circuit is configured to generate a control signal; the main control circuit is configured to generate a master high resolution multimedia interface output signal; the slave circuit is configured to generate a slave high resolution multimedia interface output signal; and the switch circuit is coupled to the high resolution multimedia interface port. And a control circuit, wherein the switch circuit is selectively connected to the first conductive state and the second conductive state according to the control signal; when the switch circuit is turned on the first conductive state, the switch circuit is electrically connected to the main control circuit, so that the main The high-resolution multimedia interface output signal is connected to the output through the high-resolution multimedia interface; when the switch circuit is turned on in the second conductive state, the switch circuit is electrically connected to the slave circuit, so that the slave high-resolution multimedia interface output signal is connected through the high-resolution multimedia interface.埠 output.
在一實施例中,前述之主控電路更用以接收一從屬高解析多媒體介面輸入訊號,從屬電路更用以接收一主控高解析多媒體介面輸入訊號;當開關電路導通於第一導通狀態時,主控電路經由高解析多媒體介面連接埠接收從屬高解析多媒體介面輸入訊號;當開關電路導通於第二導通狀態,從屬電路經由高解析多媒體介面連接埠接收主控高解析多媒體介面輸入訊號。In an embodiment, the foregoing main control circuit is further configured to receive a slave high resolution multimedia interface input signal, and the slave circuit is further configured to receive a master high resolution multimedia interface input signal; when the switch circuit is turned on in the first conductive state The main control circuit receives the dependent high-resolution multimedia interface input signal through the high-resolution multimedia interface connection; when the switch circuit is turned on in the second conductive state, the slave circuit receives the master high-resolution multimedia interface input signal through the high-resolution multimedia interface connection.
在一實施例中,前述之主控高解析多媒體介面輸出訊號包含一最小化傳輸差動訊號輸出訊號及一電源輸出訊號,主控高解析多媒體介面輸入訊號包含一最小化傳輸差動訊號輸入訊號及一電源輸入訊號,從屬高解析多媒體介面輸入訊號包含一延伸顯示識別資訊輸入訊號及一熱插偵測輸入訊號,從屬高解析多媒體介面輸出訊號包含一延伸顯示識別資訊輸出訊號及一熱插偵測輸出訊號。In one embodiment, the master high resolution multimedia interface output signal includes a minimized transmission differential signal output signal and a power output signal, and the master high resolution multimedia interface input signal includes a minimized transmission differential signal input signal. And a power input signal, the slave high resolution multimedia interface input signal includes an extended display identification information input signal and a hot plug detection input signal, and the slave high resolution multimedia interface output signal includes an extended display identification information output signal and a hot plug detect Measure the output signal.
在一實施例中,前述之控制電路耦接高解析多媒體介面連接埠,且開關電路根據控制訊號之一邏輯位準導通於第一導通狀態之後,若控制電路經由高解析多媒體介面連接埠接收電源輸入訊號,控制電路產生具有另一邏輯位準之控制訊號,使開關電路由第一導通狀態切換至第二導通狀態。In an embodiment, the control circuit is coupled to the high-resolution multimedia interface port, and the switch circuit is connected to the first conductive state according to a logic level of the control signal, and the control circuit receives the power through the high-resolution multimedia interface. Inputting a signal, the control circuit generates a control signal having another logic level to switch the switch circuit from the first conductive state to the second conductive state.
在一實施例中,前述之控制電路耦接從屬電路,且開關電路根據控制訊號之一邏輯位準導通於第一導通狀態之後,若控制電路經由從屬電路接收延伸顯示識別資訊輸出訊號,控制電路產生具有另一邏輯位準之控制訊號,使開關電路由第一導通狀態切換至第二導通狀態。In an embodiment, the control circuit is coupled to the slave circuit, and after the switch circuit is turned on according to one of the logic signals of the control signal, the control circuit receives the extended display identification information output signal via the slave circuit, and the control circuit A control signal having another logic level is generated to switch the switching circuit from the first conducting state to the second conducting state.
在一實施例中,前述之主控電路耦接於控制電路,而主控電路及控制電路係分別為平台控制中樞器及內嵌式控制器,主控電路接收一開機電源而驅動內嵌式控制器產生控制訊號,使開關電路導通於第一導通狀態。In an embodiment, the main control circuit is coupled to the control circuit, and the main control circuit and the control circuit are respectively a platform control central device and an embedded controller, and the main control circuit receives a power-on power and drives the embedded device. The controller generates a control signal to cause the switch circuit to conduct in a first conductive state.
在一實施例中,前述之控制電路係為內嵌式控制器,控制電路接收一待機電源以供應從屬電路及開關電路之運作。In one embodiment, the aforementioned control circuit is an embedded controller, and the control circuit receives a standby power supply to supply the operation of the slave circuit and the switch circuit.
在一實施例中,前述之高解析多媒體介面裝置更包含一殼體,用以容置高解析多媒體介面連接埠、控制電路、主控電路、從屬電路及開關電路,且殼體上形成有一實體按鍵,用以接收一觸碰以產生一觸碰訊號,控制電路根據觸碰訊號產生對應之控制訊號。In an embodiment, the high-resolution multimedia interface device further includes a casing for accommodating a high-resolution multimedia interface port, a control circuit, a main control circuit, a slave circuit, and a switch circuit, and a solid body is formed on the casing. The button is configured to receive a touch to generate a touch signal, and the control circuit generates a corresponding control signal according to the touch signal.
在一實施例中,前述之高解析多媒體介面裝置更包含一顯示單元容置於所述殼體中,顯示單元所顯示之一視訊調整功能選單更包含開關電路之導通狀態之一設定選項,實體按鍵接收前述之觸碰以改變設定選項,使控制電路產生對應之控制訊號。In one embodiment, the high-resolution multimedia interface device further includes a display unit housed in the housing, and one of the video adjustment function menus displayed by the display unit further includes one of the on-state setting conditions of the switch circuit, and the entity The button receives the aforementioned touch to change the setting option, so that the control circuit generates a corresponding control signal.
在一實施例中,一種高解析多媒體介面裝置之控制方法包含經由一主控電路產生一主控高解析多媒體介面輸出訊號、經由一開關電路電性連接主控電路及一高解析多媒體介面連接埠,使主控高解析多媒體介面輸出訊號經由高解析多媒體介面連接埠輸出、經由一從屬電路產生一從屬高解析多媒體介面輸出訊號以及經由開關電路電性連接從屬電路及高解析多媒體介面連接埠,使從屬高解析多媒體介面輸出訊號經由高解析多媒體介面連接埠輸出。In an embodiment, a method for controlling a high-resolution multimedia interface device includes: generating a master high-resolution multimedia interface output signal via a main control circuit, electrically connecting the main control circuit and a high-resolution multimedia interface via a switch circuit; The main control high-resolution multimedia interface output signal is connected to the output through the high-resolution multimedia interface, generates a dependent high-resolution multimedia interface output signal via a slave circuit, and is electrically connected to the slave circuit and the high-resolution multimedia interface via the switch circuit. The slave high resolution multimedia interface output signal is connected to the output via a high resolution multimedia interface.
在一實施例中,前述之多媒體介面裝置之控制方法更包含經由高解析多媒體介面連接埠接收一從屬高解析多媒體介面輸入訊號、經由開關電路電性連接主控電路及高解析多媒體介面連接埠,使主控電路經由高解析多媒體介面連接埠接收從屬高解析多媒體介面輸入訊號、經由高解析多媒體介面連接埠接收一主控高解析多媒體介面輸入訊號以及經由開關電路電性連接從屬電路及高解析多媒體介面連接埠,使從屬電路經由高解析多媒體介面連接埠接收主控高解析多媒體介面輸入訊號。In an embodiment, the control method of the multimedia interface device further includes: receiving a dependent high-resolution multimedia interface input signal via a high-resolution multimedia interface port, electrically connecting the main control circuit and the high-resolution multimedia interface port via the switch circuit, The main control circuit is connected to the high-resolution multimedia interface input signal via the high-resolution multimedia interface, receives a master high-resolution multimedia interface input signal through the high-resolution multimedia interface interface, and electrically connects the slave circuit and the high-resolution multimedia through the switch circuit. The interface is connected to enable the slave circuit to receive the master high resolution multimedia interface input signal via the high resolution multimedia interface.
綜上所述,根據本發明之高解析多媒體介面裝置及其控制方法之一實施例,高解析多媒體介面裝置之一HDMI連接埠可連接於主控端裝置及從屬端裝置。如此一來,高解析多媒體介面裝置可作為主控端及從屬端,相較於先前技術,HDMI連接埠之數量不需增加,進而節省高解析多媒體介面裝置之生產成本。並且,使用者也不需要以肉眼辨識HDMI連接埠係為輸入埠還是輸出埠,如此便提升了使用便利性。In summary, according to an embodiment of the high-resolution multimedia interface device and the control method thereof, an HDMI port of the high-resolution multimedia interface device can be connected to the master device and the slave device. In this way, the high-resolution multimedia interface device can be used as the master terminal and the slave terminal. Compared with the prior art, the number of HDMI ports does not need to be increased, thereby saving the production cost of the high-resolution multimedia interface device. Moreover, the user does not need to visually recognize the HDMI connection as an input port or an output port, thus improving the usability.
圖1為根據本發明之一高解析多媒體介面裝置之一方塊示意圖。請參照圖1,高解析多媒體介面裝置1包含高解析多媒體介面連接埠11、控制電路12、主控電路13、從屬電路14及開關電路15。開關電路15耦接高解析多媒體介面連接埠11及控制電路12,且開關電路15選擇性地耦接主控電路13及從屬電路14。在一些實施態樣中,開關電路15可為電子式開關,例如,開關電路15可以多個金屬氧化物半導體場效電晶體(MOSFET)來實現。1 is a block diagram of one of the high resolution multimedia interface devices in accordance with the present invention. Referring to FIG. 1, the high-resolution multimedia interface device 1 includes a high-resolution multimedia interface port 11, a control circuit 12, a main control circuit 13, a slave circuit 14, and a switch circuit 15. The switch circuit 15 is coupled to the high resolution multimedia interface port 11 and the control circuit 12, and the switch circuit 15 is selectively coupled to the main control circuit 13 and the slave circuit 14. In some implementations, the switching circuit 15 can be an electronic switch. For example, the switching circuit 15 can be implemented with a plurality of metal oxide semiconductor field effect transistors (MOSFETs).
高解析多媒體介面裝置1可與其他具有HDMI連接埠之電子裝置之間進行HDMI通訊,主控電路13用以產生主控HDMI輸出訊號S1並接收來自前述電子裝置之一從屬HDMI輸入訊號S2。從屬電路14用以產生從屬HDMI輸出訊號S3並接收來自前述電子裝置之一主控HDMI輸入訊號S4。再者,如圖1所示,開關電路15受控於控制電路12,控制電路12用以產生控制訊號S5,開關電路15接收控制電路12產生之控制訊號S5,開關電路15根據控制訊號S5之邏輯位準而可切換於第一導通狀態與第二導通狀態。舉例來說,高邏輯位準(即,邏輯「1」)之控制訊號S5可致使開關電路15導通於於第一導通狀態,而低邏輯位準(即,邏輯「0」)之控制訊號S5可致使開關電路15導通於第二導通狀態。以前述之開關電路15包含多個MOSFET為例,每一MOSFET的閘極(gate)端係耦接於控制電路12以接收控制訊號S5。The high-resolution multimedia interface device 1 can perform HDMI communication with other electronic devices having an HDMI connection, and the main control circuit 13 is configured to generate a master HDMI output signal S1 and receive a slave HDMI input signal S2 from the electronic device. The slave circuit 14 is configured to generate a slave HDMI output signal S3 and receive a master HDMI input signal S4 from one of the aforementioned electronic devices. Furthermore, as shown in FIG. 1, the switch circuit 15 is controlled by the control circuit 12, the control circuit 12 is used to generate the control signal S5, the switch circuit 15 receives the control signal S5 generated by the control circuit 12, and the switch circuit 15 is based on the control signal S5. The logic level can be switched to the first conduction state and the second conduction state. For example, the control signal S5 of the high logic level (ie, logic "1") may cause the switching circuit 15 to be turned on in the first conduction state, and the control signal S5 of the low logic level (ie, logic "0"). The switch circuit 15 can be caused to conduct in a second conductive state. For example, the gate circuit of the MOSFET is connected to the control circuit 12 to receive the control signal S5.
於是,根據開關電路15之兩導通狀態,開關電路15選擇性地耦接於主控電路13及從屬電路14。當開關電路15導通於第一導通狀態時,開關電路15電性連接於主控電路13,此時高解析多媒體介面裝置1可作為主控(master)端,使主控電路13產生之主控HDMI輸出訊號S1經由高解析多媒體介面連接埠11輸出,且使主控電路13經由高解析多媒體介面連接埠11接收從屬HDMI輸入訊號S2。另一方面,當開關電路15導通於第二導通狀態時,開關電路15電性連接於從屬電路14,此時高解析多媒體介面裝置1可作為從屬(slave)端,使從屬電路14產生之從屬HDMI輸出訊號S3經由高解析多媒體介面連接埠11輸出,且使從屬電路14經由高解析多媒體介面連接埠11接收主控HDMI輸入訊號S4。Therefore, the switch circuit 15 is selectively coupled to the main control circuit 13 and the slave circuit 14 according to the two on states of the switch circuit 15. When the switch circuit 15 is turned on in the first conductive state, the switch circuit 15 is electrically connected to the main control circuit 13, and the high-resolution multimedia interface device 1 can be used as the master terminal, so that the master control circuit 13 generates the master control. The HDMI output signal S1 is output via the high resolution multimedia interface port 11 and causes the main control circuit 13 to receive the slave HDMI input signal S2 via the high resolution multimedia interface port 11 . On the other hand, when the switch circuit 15 is turned on in the second conductive state, the switch circuit 15 is electrically connected to the slave circuit 14, and the high resolution multimedia interface device 1 can be used as a slave terminal to enable the slave circuit 14 to generate slaves. The HDMI output signal S3 is connected to the 埠11 output via the high resolution multimedia interface, and the slave circuit 14 receives the master HDMI input signal S4 via the high resolution multimedia interface port 埠11.
圖2至圖4分別為圖1之高解析多媒體介面裝置1作為主控端及從屬端之一實施例之方塊示意圖。請同時參照圖2至圖4,值得說明的是,高解析多媒體介面連接埠11具有最小化傳輸差動訊號(Transition Minimized Differential Signaling;TMDS)通道、顯示資料通道(Display Data Channel;DDC)通道、(Consumer Electronics Control;CEC)通道、電源(Power)線路及熱插偵測(Hot Plug Detection;HPD)線路,高解析多媒體介面連接埠11可相容於任何現有的HDMI接頭,例如,具19根接腳之A型(type)HDMI接頭、具29根接腳之B型HDMI接頭、具19根接腳之C型HDMI接頭以及具19根接腳之D型HDMI接頭。高解析多媒體介面裝置1之使用者可將任意類型之HDMI傳輸線之一端連接於HDMI連接埠11,並將另一端連接於從屬端裝置2或主控端裝置3,以傳輸具HDMI格式之影音資料。2 to FIG. 4 are block diagrams showing an embodiment of the high-resolution multimedia interface device 1 of FIG. 1 as a master and a slave. Referring to FIG. 2 to FIG. 4 at the same time, it is worth noting that the high-resolution multimedia interface port 11 has a Minimized Differential Signaling (TMDS) channel and a Display Data Channel (DDC) channel. (Consumer Electronics Control; CEC) channel, Power line and Hot Plug Detection (HPD) line, high resolution multimedia interface port 11 compatible with any existing HDMI connector, for example, with 19 A type HDMI connector for the pin, a B-type HDMI connector with 29 pins, a C-type HDMI connector with 19 pins, and a D-type HDMI connector with 19 pins. The user of the high-resolution multimedia interface device 1 can connect one end of any type of HDMI transmission line to the HDMI port 11 and connect the other end to the slave device 2 or the host device 3 to transmit audio and video data in the HDMI format. .
基此,如圖2所示,主控電路13可產生包含TMDS輸出訊號S11及電源輸出訊號S12之主控HDMI輸出訊號S1,TMDS輸出訊號S11及電源輸出訊號S12可分別經由高解析多媒體介面連接埠11之TMDS通道及電源線路輸出。主控電路13可經由DDC通道及HPD線路分別接收包含延伸顯示識別資訊(Extended display identification data;EDID)輸入訊號S21及HPD輸入訊號S22之從屬HDMI輸入訊號S2。並且,如圖3所示,從屬電路14可產生包含EDID輸出訊號S31及HPD輸出訊號S32之從屬HDMI輸出訊號S3,EDID輸出訊號S31及HPD輸出訊號S32可分別經由DDC通道及HPD線路輸出。從屬電路14可分別經由TMDS通道及電源線路接收包含TMDS輸入訊號S41及電源輸入訊號S42之主控HDMI輸入訊號S4。Therefore, as shown in FIG. 2, the main control circuit 13 can generate a main control HDMI output signal S1 including a TMDS output signal S11 and a power output signal S12, and the TMDS output signal S11 and the power output signal S12 can be respectively connected via a high resolution multimedia interface.埠11's TMDS channel and power line output. The main control circuit 13 can receive the slave HDMI input signal S2 including the extended display identification data (EDID) input signal S21 and the HPD input signal S22 via the DDC channel and the HPD line, respectively. Moreover, as shown in FIG. 3, the slave circuit 14 can generate a slave HDMI output signal S3 including an EDID output signal S31 and an HPD output signal S32. The EDID output signal S31 and the HPD output signal S32 can be output via the DDC channel and the HPD line, respectively. The slave circuit 14 can receive the master HDMI input signal S4 including the TMDS input signal S41 and the power input signal S42 via the TMDS channel and the power line, respectively.
以高解析多媒體介面裝置1作為主控端為例,如圖2所示,高解析多媒體介面裝置1連接於一從屬端裝置2。從屬端裝置2可包含高解析多媒體介面連接埠21、HDMI控制單元22及唯讀記憶體23。當HDMI傳輸線之兩端分別連接於高解析多媒體介面連接埠11及高解析多媒體介面連接埠21之後,由於開關電路15導通於第一導通狀態,高解析多媒體介面連接埠11之各通道及各線路經由開關電路15電性連接於主控電路13。於是,主控電路13產生之電源輸出訊號S12可經由開關電路15、高解析多媒體介面連接埠11及高解析多媒體介面連接埠21傳送至從屬端裝置2,使從屬端裝置2之 HDMI控制單元22及儲存有EDID之唯讀記憶體23分別輸出具高邏輯準位之HPD輸入訊號S22及EDID輸入訊號S21,以回應電源輸出訊號S12。接著,主控電路13經由高解析多媒體介面連接埠11及開關電路15接收EDID輸入訊號S21及HPD輸入訊號S22。主控電路13根據具高邏輯準位之HPD輸入訊號S22可得知高解析多媒體介面連接埠11已連接於從屬端裝置2。並且,主控電路13根據EDID輸入訊號S21發送相容於從屬端裝置2之顯示單元之TMDS輸出訊號S11。最後,TMDS輸出訊號S11經由開關電路15、高解析多媒體介面連接埠11及高解析多媒體介面連接埠21傳送至從屬端裝置2,使從屬端裝置2得以分別播放視訊及音訊。Taking the high-resolution multimedia interface device 1 as a main control terminal as an example, as shown in FIG. 2, the high-resolution multimedia interface device 1 is connected to a slave device 2. The slave device 2 can include a high resolution multimedia interface port 21, an HDMI control unit 22, and a read only memory 23. After the two ends of the HDMI transmission line are respectively connected to the high-resolution multimedia interface port 11 and the high-resolution multimedia interface port 21, since the switch circuit 15 is turned on in the first conduction state, the high-resolution multimedia interface is connected to each channel and each line of the port 11 It is electrically connected to the main control circuit 13 via the switch circuit 15. Therefore, the power output signal S12 generated by the main control circuit 13 can be transmitted to the slave device 2 via the switch circuit 15, the high resolution multimedia interface port 11 and the high resolution multimedia interface port 21, and the HDMI control unit 22 of the slave device 2 is enabled. The read-only memory 23 storing the EDID respectively outputs the HPD input signal S22 and the EDID input signal S21 having a high logic level in response to the power output signal S12. Then, the main control circuit 13 receives the EDID input signal S21 and the HPD input signal S22 via the high resolution multimedia interface port 11 and the switch circuit 15. The main control circuit 13 can know that the high resolution multimedia interface port 11 is connected to the slave device 2 according to the HPD input signal S22 having a high logic level. Moreover, the main control circuit 13 transmits a TMDS output signal S11 compatible with the display unit of the slave device 2 according to the EDID input signal S21. Finally, the TMDS output signal S11 is transmitted to the slave device 2 via the switch circuit 15, the high resolution multimedia interface port 11 and the high resolution multimedia interface port 21, so that the slave device 2 can respectively play video and audio.
以高解析多媒體介面裝置1作為從屬端為例,如圖3所示,高解析多媒體介面裝置1連接於包含高解析多媒體介面連接埠31之主控端裝置3。主控端裝置3包含高解析多媒體介面連接埠31。當HDMI傳輸線之兩端分別連接於高解析多媒體介面連接埠11及高解析多媒體介面連接埠31之後,由於開關電路15導通於第二導通狀態,高解析多媒體介面連接埠11之各通道及各線路經由開關電路15電性連接於從屬電路14。於是,主控端裝置3可經由高解析多媒體介面連接埠31輸出電源輸入訊號S42,電源輸入訊號S42經由高解析多媒體介面連接埠11及開關電路15傳送至從屬電路14,使從屬電路14分別輸出EDID輸出訊號S31及具高邏輯準位之HPD輸出訊號S32,以回應電源輸入訊號S42。接著,EDID輸出訊號S31及HPD輸出訊號S32經由開關電路15、高解析多媒體介面連接埠11及高解析多媒體介面連接埠31發送至主控端裝置3,使主控端裝置3得知高解析多媒體介面連接埠31已連接於高解析多媒體介面裝置1。於是,主控端裝置3根據EDID輸出訊號S31輸出相容於高解析多媒體介面裝置1之顯示單元16之TMDS輸入訊號S41,TMDS輸入訊號S41經由多媒體介面連接埠31、多媒體介面連接埠11及開關電路15傳送至從屬電路14。最後,從屬電路14對TMDS輸入訊號S41進行訊號處理以將視訊及音訊分別發送至顯示單元16及音訊播放單元17。Taking the high-resolution multimedia interface device 1 as a slave terminal as an example, as shown in FIG. 3, the high-resolution multimedia interface device 1 is connected to the master device 3 including the high-resolution multimedia interface port 31. The master device 3 includes a high resolution multimedia interface port 31. After the two ends of the HDMI transmission line are respectively connected to the high-resolution multimedia interface port 11 and the high-resolution multimedia interface port 31, since the switch circuit 15 is turned on in the second conduction state, the high-resolution multimedia interface is connected to each channel and each line of the port 11 The slave circuit 14 is electrically connected via the switch circuit 15. Therefore, the main control device 3 can output the power input signal S42 via the high resolution multimedia interface port 31, and the power input signal S42 is transmitted to the slave circuit 14 via the high resolution multimedia interface port 11 and the switch circuit 15, so that the slave circuits 14 output respectively. The EDID output signal S31 and the HPD output signal S32 having a high logic level respond to the power input signal S42. Then, the EDID output signal S31 and the HPD output signal S32 are sent to the host device 3 via the switch circuit 15, the high resolution multimedia interface port 11 and the high resolution multimedia interface port 31, so that the master device 3 knows the high resolution multimedia. The interface port 31 is connected to the high resolution multimedia interface device 1. Therefore, the main control device 3 outputs the TMDS input signal S41 compatible with the display unit 16 of the high resolution multimedia interface device 1 according to the EDID output signal S31. The TMDS input signal S41 is connected to the multimedia interface port 11 and the switch via the multimedia interface. Circuit 15 is passed to slave circuit 14. Finally, the slave circuit 14 performs signal processing on the TMDS input signal S41 to transmit the video and audio to the display unit 16 and the audio playback unit 17, respectively.
在一些實施態樣中,高解析多媒體介面裝置1可為一體成型(all in one;AIO)電腦。如圖5所示,高解析多媒體介面裝置1更可包含一殼體18,殼體18可容置高解析多媒體介面連接埠11、控制電路12、主控電路13、從屬電路14及開關電路15。於此,主控電路13可以一體成型電腦之平台控制中樞器(Platform controller hub,PCH)來實現,以輸出視訊及音訊整合後之TMDS輸出訊號S11。從屬電路14可以輸出入晶片(I/O chip)電性連接唯讀記憶體、解碼器及HPD控制器來實現。其中,解碼器可支援低電壓差動訊號(Low Voltage Differential Signaling;LVDS)傳輸,解碼器對TMDS輸入訊號S41進行解碼並將視訊與音訊分離;唯讀記憶體中儲存有EDID而可輸出EDID輸出訊號S31;而HPD控制器可在接收電壓準位為5 V之電源輸入訊號S42後輸出具高邏輯位準之HPD輸出訊號S32。控制電路12可為內嵌式控制器(Embedded Controller)或是任何具有控制功能之特殊應用積體電路(ASIC)。In some implementations, the high resolution multimedia interface device 1 can be an all in one (AIO) computer. As shown in FIG. 5, the high-resolution multimedia interface device 1 further includes a housing 18, and the housing 18 can accommodate a high-resolution multimedia interface port 11, a control circuit 12, a main control circuit 13, a slave circuit 14, and a switch circuit 15. . Here, the main control circuit 13 can be realized by integrally forming a platform controller hub (PCH) of the computer to output the integrated DSDS output signal S11 of the video and audio. The slave circuit 14 can be implemented by electrically connecting an input/output chip (I/O chip) to a read-only memory, a decoder, and an HPD controller. The decoder can support Low Voltage Differential Signaling (LVDS) transmission, the decoder decodes the TMDS input signal S41 and separates the video from the audio; the read-only memory stores the EDID and can output the EDID output. The signal S31; and the HPD controller can output the HPD output signal S32 with a high logic level after receiving the power input signal S42 with a voltage level of 5 V. The control circuit 12 can be an embedded controller or any special application integrated circuit (ASIC) with control functions.
基此,於高解析多媒體介面裝置1為AIO電腦之實施態樣中,高解析多媒體介面裝置1更包含一電源供應單元,當高解析多媒體介面裝置1開機之後,電源供應單元提供一開機電源,主控電路13接受開機電源而運作。於是,高解析多媒體介面裝置1於開機後可預設為作為主控端,開關電路15可根據控制訊號S5而自動導通於第一導通狀態。詳細而言,如圖2所示,主控電路13耦接於控制電路12,主控電路13過電後即自動驅動控制電路12,使控制電路12發出具有對應之邏輯位準(例如,高邏輯位準)之控制訊號S5以控制開關電路15導通於第一導通狀態。進一步,在開關電路15導通於第一導通狀態之後,處於開機狀態中之高解析多媒體介面裝置1並不會由主控端自動切換至從屬端,即開關電路15於高解析多媒體介面裝置1開機時並不會由第一導通狀態自動切換至第二導通狀態,開關電路15持續地導通於第一導通狀態使高解析多媒體介面裝置1可連接於從屬端裝置2。Therefore, in the implementation aspect of the high-resolution multimedia interface device 1 being an AIO computer, the high-resolution multimedia interface device 1 further includes a power supply unit. When the high-resolution multimedia interface device 1 is powered on, the power supply unit provides a power-on power supply. The main control circuit 13 operates by receiving power on. Therefore, the high-resolution multimedia interface device 1 can be preset as the master terminal after being turned on, and the switch circuit 15 can be automatically turned on in the first conductive state according to the control signal S5. In detail, as shown in FIG. 2, the main control circuit 13 is coupled to the control circuit 12, and the main control circuit 13 automatically drives the control circuit 12 after being over-powered, so that the control circuit 12 emits a corresponding logic level (for example, high). The control signal S5 of the logic level is controlled to be turned on in the first conducting state by the switching circuit 15. Further, after the switch circuit 15 is turned on in the first conductive state, the high-resolution multimedia interface device 1 in the power-on state is not automatically switched to the slave terminal by the master terminal, that is, the switch circuit 15 is powered on in the high-resolution multimedia interface device 1. When the first conduction state is not automatically switched to the second conduction state, the switch circuit 15 is continuously turned on in the first conduction state to enable the high resolution multimedia interface device 1 to be connected to the slave device 2.
另一方面,當高解析多媒體介面裝置1未開機或操作於基本輸入輸出系統(BIOS)之電源選項中之一些省電待機模式時,電源供應單元可供應一待機電源,此時,為內嵌式控制器之控制電路12可自電源供應單元接收待機電源,並將待機電源傳送至從屬電路14、開關電路15、音訊播放單元17及顯示單元16,使從屬電路14、開關電路15、音訊播放單元17及顯示單元16可在接受待機電源後獨立運作。於是,高解析多媒體介面裝置1可作為從屬端,進而顯示視訊並播放音訊。On the other hand, when the high-resolution multimedia interface device 1 is not powered on or operates in some of the power-saving standby modes of the basic input/output system (BIOS), the power supply unit can supply a standby power supply, at this time, being embedded. The control circuit 12 of the controller can receive the standby power from the power supply unit, and transmit the standby power to the slave circuit 14, the switch circuit 15, the audio playback unit 17, and the display unit 16, so that the slave circuit 14, the switch circuit 15, and the audio player play Unit 17 and display unit 16 can operate independently after receiving standby power. Thus, the high-resolution multimedia interface device 1 can function as a slave to display video and play audio.
於高解析多媒體介面裝置1作為從屬端之實施態樣中,若欲使開關電路15自動導通於第二導通狀態,如圖3所示,控制電路12可耦接高解析多媒體介面連接埠11以耦接於高解析多媒體介面連接埠11之電源線路。並且,控制電路12可包含緩衝器(buffer),以根據電源訊號之方向來產生對應的控制訊號S5進而自動設定開關電路15之導通狀態。詳言之,若控制電路12藉由緩衝器偵測出所接收之訊號係來自高解析多媒體介面連接埠11,如電源輸入訊號S42,表示此時的高解析多媒體介面裝置1係作為從屬端。於是,控制電路12產生對應之控制訊號S5,以前述控制訊號S5具有低邏輯位準可使開關電路15導通於第二導通狀態為例,控制電路12於偵測到電源輸入訊號S42之後即產生具有低邏輯位準之控制訊號S5。基此,倘若開關電路15於高解析多媒體介面裝置1作為從屬端之前係導通於第一導通狀態,控制電路12可根據來自主控端裝置3之電源輸入訊號S42產生具另一邏輯位準之控制訊號S5,使開關電路15由第一導通狀態自動切換至第二導通狀態,當開關電路15切換至第二導通狀態之後,高解析多媒體介面裝置1即可正常通訊於主控端裝置3。In the embodiment of the high-resolution multimedia interface device 1 as the slave terminal, if the switch circuit 15 is to be automatically turned on in the second conductive state, as shown in FIG. 3, the control circuit 12 can be coupled to the high-resolution multimedia interface port 11 to The power line is coupled to the high resolution multimedia interface port 11 . Moreover, the control circuit 12 can include a buffer to automatically generate the corresponding control signal S5 according to the direction of the power signal to automatically set the conduction state of the switch circuit 15. In detail, if the control circuit 12 detects by the buffer that the received signal is from the high-resolution multimedia interface port 11, such as the power input signal S42, the high-resolution multimedia interface device 1 at this time is used as the slave. Therefore, the control circuit 12 generates a corresponding control signal S5, and the control signal S5 has a low logic level to enable the switch circuit 15 to be turned on in the second conductive state. The control circuit 12 generates the power input signal S42 after detecting the power input signal S42. Control signal S5 with low logic level. Therefore, if the switch circuit 15 is turned on in the first conductive state before the high resolution multimedia interface device 1 is used as the slave terminal, the control circuit 12 can generate another logic level according to the power input signal S42 from the master device 3. The control signal S5 is configured to automatically switch the switch circuit 15 from the first conductive state to the second conductive state. After the switch circuit 15 is switched to the second conductive state, the high-resolution multimedia interface device 1 can normally communicate with the master device 3.
或者,在另一些實施態樣中,倘若從屬電路14並非是根據電源輸入訊號S42產生EDID輸出訊號S31而是不斷地發送EDID輸出訊號S31,控制電路12可包含另一緩衝器來檢測EDID訊號的方向以產生對應的控制訊號S5。如圖4所示,控制電路12可耦接於從屬電路14,以接收從屬電路14產生之EDID訊號,例如EDID輸出訊號S31,當控制電路12偵測出EDID訊號係來自從屬電路14時,表示高解析多媒體介面裝置1係作為從屬端,此時控制電路12產生具有低邏輯位準之控制訊號S5,使開關電路15切換至第二導通狀態。Alternatively, in other implementations, if the slave circuit 14 does not generate the EDID output signal S31 based on the power input signal S42 but continuously transmits the EDID output signal S31, the control circuit 12 may include another buffer to detect the EDID signal. The direction is to generate a corresponding control signal S5. As shown in FIG. 4, the control circuit 12 can be coupled to the slave circuit 14 to receive the EDID signal generated by the slave circuit 14, such as the EDID output signal S31. When the control circuit 12 detects that the EDID signal is from the slave circuit 14, the control circuit 12 indicates that the EDID signal is from the slave circuit 14. The high resolution multimedia interface device 1 is used as a slave terminal. At this time, the control circuit 12 generates a control signal S5 having a low logic level to switch the switch circuit 15 to the second conduction state.
在一些實施態樣中,高解析多媒體介面裝置1之使用者亦可以手動之方式來設定高解析多媒體介面裝置1之操作模式,以決定高解析多媒體介面裝置1係作為主控端或從屬端。如圖5所示,殼體18上更包含一實體按鍵181耦接於控制電路12,當高解析多媒體介面裝置1之使用者觸碰實體按鍵181後,實體按鍵181可產生一觸碰訊號來驅使控制電路12產生控制訊號S5,進而設定開關電路15的導通狀態,使高解析多媒體介面裝置1可作為從屬端或主控端。舉例來說,實體按鍵181可為控制顯示單元16之視訊調整功能(On Screen Display;OSD)的按鍵,當使用者按下實體按鍵181後,顯示單元16顯示之視訊調整功能選單更包含使高解析多媒體介面裝置1作為從屬端或主控端之設定選項,使用者可藉由實體按鍵181切換前述之設定選項,以驅使控制電路12產生對應之控制訊號S5,進而設定開關電路15的導通狀態。In some implementations, the user of the high-resolution multimedia interface device 1 can also manually set the operation mode of the high-resolution multimedia interface device 1 to determine whether the high-resolution multimedia interface device 1 is used as a master or a slave. As shown in FIG. 5, the housing 18 further includes a physical button 181 coupled to the control circuit 12. When the user of the high resolution multimedia interface device 1 touches the physical button 181, the physical button 181 can generate a touch signal. The driving control circuit 12 generates the control signal S5, thereby setting the conduction state of the switching circuit 15, so that the high resolution multimedia interface device 1 can be used as a slave or a master. For example, the physical button 181 can be a button for controlling the on screen display (OSD) of the display unit 16. When the user presses the physical button 181, the video adjustment function menu displayed by the display unit 16 is further included. The multimedia interface device 1 is configured as a setting option of the slave terminal or the master terminal. The user can switch the foregoing setting option by the physical button 181 to drive the control circuit 12 to generate a corresponding control signal S5, thereby setting the conduction state of the switch circuit 15. .
圖6為根據本發明之高解析多媒體介面裝置彼此連接之一實施例之外觀示意圖。請參照圖6,以兩高解析多媒體介面裝置4、5為AIO電腦為例,當兩高解析多媒體介面裝置4、5均開機時,此時使用者須以手動之方式分別設定兩高解析多媒體介面裝置4、5中之開關電路之導通狀態,或是使用者可設定其中一者中之開關電路之導通狀態,舉例來說,若兩高解析多媒體介面裝置4、5均預設為主控端(即,兩高解析多媒體介面裝置4、5之開關電路於預設狀態中係導通於第一導通狀態),此時使用者須藉由實體按鍵181、182將兩開關電路中之一者切換至第二導通狀態,使兩高解析多媒體介面裝置4、5之間可正常地進行HDMI通訊。Figure 6 is a perspective view showing an embodiment of a high resolution multimedia interface device connected to each other according to the present invention. Please refer to FIG. 6 , taking the two high-resolution multimedia interface devices 4 and 5 as the AIO computer as an example. When the two high-resolution multimedia interface devices 4 and 5 are powered on, the user must manually set two high-resolution multimedia devices manually. The conduction state of the switch circuit in the interface device 4, 5, or the user can set the conduction state of the switch circuit in one of the devices, for example, if the two high-resolution multimedia interface devices 4, 5 are preset as the master control The end (ie, the switch circuits of the two high-resolution multimedia interface devices 4, 5 are turned on in the first conductive state in the preset state), and the user must use one of the two switch circuits by the physical buttons 181, 182. Switching to the second conduction state enables normal HDMI communication between the two high resolution multimedia interface devices 4, 5.
綜上所述,根據本發明之高解析多媒體介面裝置及其控制方法之一實施例,高解析多媒體介面裝置之一HDMI連接埠可連接於主控端裝置及從屬端裝置。如此一來,高解析多媒體介面裝置可作為主控端及從屬端,相較於先前技術,HDMI連接埠之數量不需增加,進而節省高解析多媒體介面裝置之生產成本。並且,使用者也不需要以肉眼辨識HDMI連接埠係為輸入埠還是輸出埠,如此便提升了使用便利性。In summary, according to an embodiment of the high-resolution multimedia interface device and the control method thereof, an HDMI port of the high-resolution multimedia interface device can be connected to the master device and the slave device. In this way, the high-resolution multimedia interface device can be used as the master terminal and the slave terminal. Compared with the prior art, the number of HDMI ports does not need to be increased, thereby saving the production cost of the high-resolution multimedia interface device. Moreover, the user does not need to visually recognize the HDMI connection as an input port or an output port, thus improving the usability.
雖然本發明已以實施例揭露如上然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可作些許之更動與潤飾,故本發明之保護範圍當視後附之專利申請範圍所界定者為準。The present invention has been disclosed in the above embodiments, and it is not intended to limit the present invention. Any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended patent application.
1‧‧‧高解析多媒體介面裝置
11‧‧‧高解析多媒體介面連接埠
12‧‧‧控制電路
13‧‧‧主控電路
14‧‧‧從屬電路
15‧‧‧開關電路
16‧‧‧顯示單元
17‧‧‧音訊播放單元
18‧‧‧殼體
181‧‧‧實體按鍵
182‧‧‧實體按鍵
2‧‧‧從屬端裝置
21‧‧‧高解析多媒體介面連接埠
22‧‧‧HDMI控制單元
23‧‧‧唯讀記憶體
3‧‧‧主控端裝置
31‧‧‧高解析多媒體介面連接埠
4‧‧‧高解析多媒體介面裝置
5‧‧‧高解析多媒體介面裝置
S1‧‧‧主控HDMI輸出訊號
S11‧‧‧TMDS輸出訊號
S12‧‧‧電源輸出訊號
S2‧‧‧從屬HDMI輸入訊號
S21‧‧‧EDID輸入訊號
S22‧‧‧HPD輸入訊號
S3‧‧‧從屬HDMI輸出訊號
S31‧‧‧EDID輸出訊號
S32‧‧‧HPD輸出訊號
S4‧‧‧主控HDMI輸入訊號
S41‧‧‧TMDS輸入訊號
S42‧‧‧電源輸入訊號
S5‧‧‧控制訊號1‧‧‧High-resolution multimedia interface device
11‧‧‧High-resolution multimedia interface port埠
12‧‧‧Control circuit
13‧‧‧Master circuit
14‧‧‧Subordinate circuit
15‧‧‧Switch circuit
16‧‧‧Display unit
17‧‧‧Audio playback unit
18‧‧‧Shell
181‧‧‧ physical button
182‧‧‧ physical button
2‧‧‧Subordinate device
21‧‧‧High-resolution multimedia interface port埠
22‧‧‧HDMI Control Unit
23‧‧‧Read-only memory
3‧‧‧Master device
31‧‧‧High-resolution multimedia interface port埠
4‧‧‧High resolution multimedia interface device
5‧‧‧High-resolution multimedia interface device
S1‧‧‧Master HDMI output signal
S11‧‧‧TMDS output signal
S12‧‧‧Power output signal
S2‧‧‧Subordinate HDMI input signal
S21‧‧‧EDID input signal
S22‧‧‧HPD input signal
S3‧‧‧Subordinate HDMI output signal
S31‧‧‧EDID output signal
S32‧‧‧HPD output signal
S4‧‧‧Master HDMI input signal
S41‧‧‧TMDS input signal
S42‧‧‧Power input signal
S5‧‧‧ control signal
[圖1] 為根據本發明之一高解析多媒體介面裝置之一實施例之一方塊示意圖。 [圖2] 為圖1中之高解析多媒體介面裝置1連接於一從屬端裝置2之一方塊示意圖。 [圖3] 為圖1中之高解析多媒體介面裝置1連接於一主控端裝置3之一實施態樣之一方塊示意圖。 [圖4] 為圖1中之高解析多媒體介面裝置1連接於一主控端裝置3之另一實施態樣之一方塊示意圖。 [圖5] 為根據本發明之一高解析多媒體介面裝置之一實施例之外觀示意圖。 [圖6] 為根據本發明之高解析多媒體介面裝置彼此連接之一實施例之外觀示意圖。1 is a block diagram showing an embodiment of a high resolution multimedia interface device according to the present invention. FIG. 2 is a block diagram showing a high resolution multimedia interface device 1 of FIG. 1 connected to a slave device 2. FIG. 3 is a block diagram showing an embodiment of the high-resolution multimedia interface device 1 of FIG. 1 connected to a host device 3. FIG. 4 is a block diagram showing another embodiment of the high resolution multimedia interface device 1 of FIG. 1 connected to a master device 3. Fig. 5 is a perspective view showing an embodiment of a high resolution multimedia interface device according to the present invention. Fig. 6 is a schematic view showing the appearance of an embodiment in which the high resolution multimedia interface devices according to the present invention are connected to each other.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW105132111A TWI611697B (en) | 2016-10-04 | 2016-10-04 | Hdmi device and method for controlling the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW105132111A TWI611697B (en) | 2016-10-04 | 2016-10-04 | Hdmi device and method for controlling the same |
Publications (2)
Publication Number | Publication Date |
---|---|
TWI611697B TWI611697B (en) | 2018-01-11 |
TW201815159A true TW201815159A (en) | 2018-04-16 |
Family
ID=61728653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW105132111A TWI611697B (en) | 2016-10-04 | 2016-10-04 | Hdmi device and method for controlling the same |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI611697B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI697206B (en) * | 2019-09-24 | 2020-06-21 | 宏正自動科技股份有限公司 | Multimedia controlling adapter and method for recognizing thereof and a video matrix device using the same |
TWI753606B (en) * | 2020-10-14 | 2022-01-21 | 全漢企業股份有限公司 | Master-slave interchangeable power supply device and its host, master-slave interchangeable power supply method and computer-readable recording medium |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103869934B (en) * | 2012-12-12 | 2016-12-21 | 名硕电脑(苏州)有限公司 | Panel computer and control method thereof |
TWI509505B (en) * | 2013-09-13 | 2015-11-21 | Uc Logic Technology Corp | Tablet |
TWI522806B (en) * | 2014-10-22 | 2016-02-21 | Giga Byte Tech Co Ltd | You can switch the display circuit of the external display port |
TWI554113B (en) * | 2015-01-27 | 2016-10-11 | 宏正自動科技股份有限公司 | Video switch and switching method thereof |
-
2016
- 2016-10-04 TW TW105132111A patent/TWI611697B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TWI611697B (en) | 2018-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9329672B2 (en) | High-definition multimedia interface (HDMI) receiver apparatuses, HDMI systems using the same, and control methods therefor | |
US9544654B2 (en) | Streaming media system | |
JP5436565B2 (en) | Connection detection using the control bus | |
US20080018789A1 (en) | Portable device integrated with external video signal display function | |
US20150208026A1 (en) | Pluggable electronic device and method for determining output data of pluggable electronic device | |
WO2012097615A2 (en) | Multi-purpose connector for multiplexing headset interface into high definition video and audio interface and handheld electronic device | |
US10176140B2 (en) | HDMI apparatus of high-definition TV has switching circuit that outputs low-level/ground potential to second pin of HDMI connector if a first signal is not outputted | |
JP5711333B2 (en) | Tablet computer and control method thereof | |
US20140379951A1 (en) | System and display control method | |
US20180095706A1 (en) | Audio and video processors | |
US20170060804A1 (en) | Electronic device with connector for video signal interface | |
EP2731100A2 (en) | Display apparatus and method for controlling thereof | |
TWI611697B (en) | Hdmi device and method for controlling the same | |
TW200915128A (en) | Quick port switching method and associated apparatus | |
EP3399364A1 (en) | Head-mounted display device and head-mounted display system | |
CN108205512B (en) | High-resolution multimedia interface device and control method thereof | |
US10430358B2 (en) | High-definition multimedia interface apparatus capable of communication with slave/master apparatus utilizing the same HDMI port and method for controlling the same | |
JP4258569B1 (en) | Hot plug signal input / output device | |
TWI496134B (en) | Integrated computer, computer system and input/output signal automatic detecting method for the integrated computer | |
CN211181609U (en) | Intelligent terminal dual-mode L CD drive board circuit | |
US7825717B2 (en) | Electronic apparatus and control method thereof | |
JP4970607B1 (en) | Transmitting apparatus, receiving apparatus, and transmission method | |
TWI447671B (en) | Apparatus and method of switching digital/analog video signal and apparatus and method of switching keyboard/monitor/mouse | |
TWI606712B (en) | Docking apparatus and control method thereof | |
TWM536826U (en) | Conversion device and conversion system thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |