TWI396348B - Connector, connection detection method and adapter using the same - Google Patents

連接器、連接偵測方法與使用其之轉接器Connector, connection detection method and adapter using the same

本發明是有關於一種轉接器，且特別是有關於一種同時具有轉接音頻插頭信號與通用序列匯流排介面信號的轉接器。The present invention relates to an adapter, and more particularly to an adapter having both a transit audio plug signal and a universal serial bus interface signal.

由於電子產品的多功能化，在同一個電子裝置上面，通常提供許多不同的外掛介面。例如，在行動電話上，通常提供可以外接記憶卡、耳機以及充電器等裝置。然而，如此多的外接裝備，也使得一個電子裝置上面需要配置很多個連接器。這些連接器不但提高了生產成本，也使得該電子裝置的體積變大。Due to the versatility of electronic products, many different external interfaces are usually provided on the same electronic device. For example, on a mobile phone, a device such as an external memory card, an earphone, and a charger is usually provided. However, with so many external devices, it is necessary to configure a large number of connectors on one electronic device. These connectors not only increase the production cost, but also make the size of the electronic device larger.

為了解決上述的問題，使多種外接裝置整合成使用同一種連接器的方法因此產生。但也因此衍生了另一個問題，各家廠商為了在這些週邊配備上得到最大的利潤，通常都會提供一種特殊規格的介面連接器。例如，通用序列匯流排介面(Universal Serial Bus,USB)的耳機。如此一來，使用者為了使用這些附加功能，就必須再花錢添購此些特殊的裝備。In order to solve the above problems, a method of integrating a plurality of external devices into a same connector is thus produced. However, another problem has arisen. In order to get the most profit from these peripherals, each manufacturer usually provides a special specification interface connector. For example, a universal serial bus (USB) headset. As a result, in order to use these additional features, users must spend money to purchase these special equipment.

一般行動通訊裝置上最普遍的兩種連接器便是USB連接器與音頻插座(audio socket)，但目前的音頻插頭(audio jack)須插入至該音頻插座內才可使用，並無法直接連接至USB連接器上。行動通訊裝置通常必需設置兩種連接器，使其體積與設計成本增加不少。另外，為了偵測音頻插頭有無連接至電子裝置，習知的技術通常需要很複雜的電路來完成。如此又增加了電路元件所佔用的體積，進而使生產成本也隨著增加。The two most common connectors on a general mobile communication device are a USB connector and an audio socket, but the current audio jack must be plugged into the audio socket to be used and cannot be directly connected to On the USB connector. Mobile communication devices usually have to be equipped with two types of connectors, which increase the size and design cost. In addition, in order to detect the presence or absence of an audio plug connected to an electronic device, conventional techniques typically require very complicated circuitry to accomplish. This in turn increases the volume occupied by the circuit components, which in turn increases the production cost.

本發明提供一種轉接器，可依使用者之目的需求而接收音頻信號與通用序列匯流排介面信號，並將通用序列匯流排介面與音頻傳輸介面整合於該轉接器上，因此可克服傳統通訊裝置上必須具有多個連接器之設計，並增加便利性，減省成本的支出。The invention provides an adapter for receiving an audio signal and a universal serial bus interface signal according to a user's purpose, and integrating the universal serial bus interface and the audio transmission interface on the adapter, thereby overcoming the conventional The communication device must have multiple connectors designed to increase convenience and reduce cost.

本發明提供一種連接器，適用於連接音頻插頭。並可以偵測出外接裝置(如耳機插頭)的連接狀態。The present invention provides a connector suitable for connecting an audio plug. And it can detect the connection status of the external device (such as the earphone plug).

本發明提供一種連接器的連接偵測方法，利用接腳的電壓變化，用以偵測出外接裝置的連接情形。The invention provides a connection detection method for a connector, which uses the voltage change of the pin to detect the connection condition of the external device.

本發明提供一種轉接器。此種連接器適用於連接電子裝置與音頻插頭。其中所述的電子裝置具有一組連接器。並且，上述的轉接器包括第一連接器以及第二連接器。第一連接器用於連接電子裝置上的連接器。而第二連接器則電性連接於第一連接器，另外一面則用於連接音頻插頭。此外，第一連接器包括第一接腳組與第二接腳組。第一接腳組可以用來連結通用序列匯流排介面。第二接腳組則是電性連接至第二連接器，用來傳輸音頻插頭之音頻信號。The present invention provides an adapter. This connector is suitable for connecting electronic devices to audio plugs. The electronic device described therein has a set of connectors. And, the above adapter includes a first connector and a second connector. The first connector is for connecting a connector on the electronic device. The second connector is electrically connected to the first connector, and the other side is used to connect the audio plug. Further, the first connector includes a first pin set and a second pin set. The first pin set can be used to connect the universal serial bus interface. The second pin set is electrically connected to the second connector for transmitting the audio signal of the audio plug.

在本發明之一實施例中，上述之轉接器中的第二連接器包括第一接腳與第二接腳。當第二連接器連接至音頻插頭時，第一接腳與第二接腳接皆耦接至音頻插頭的同一個導電環。In an embodiment of the invention, the second connector in the adapter includes a first pin and a second pin. When the second connector is connected to the audio plug, the first pin and the second pin are both coupled to the same conductive ring of the audio plug.

在本發明之一實施例中，上述之轉接器中的第二接腳組包括接地接腳以及第一資料接腳。其中，接地接腳電性連接至上述的第一接腳。並且，第一資料接腳則電性連接至第二接腳。其中，當第二連接器與音頻插頭相連接時，第一資料接腳經由該導電環與接地接腳耦接而形成短路。此電子裝置依據第一資料接腳的電壓變化，來決定第二連接器與音頻插頭的連接狀態。In an embodiment of the invention, the second pin set of the adapter includes a ground pin and a first data pin. The grounding pin is electrically connected to the first pin. Moreover, the first data pin is electrically connected to the second pin. Wherein, when the second connector is connected to the audio plug, the first data pin is coupled to the ground pin via the conductive ring to form a short circuit. The electronic device determines the connection state of the second connector and the audio plug according to the voltage change of the first data pin.

在本發明之一實施例中，上述之轉接器中的第二接腳組更包括電性連接至第二接腳的第二資料接腳。其中，當第二連接器連接至音頻插頭時，第二資料接腳經由該導電環與接地接腳短路。因此，電子裝置藉由第二資料接腳的電壓變化，來判斷第二連接器與音頻插頭的連接狀態。In an embodiment of the invention, the second pin set of the adapter further includes a second data pin electrically connected to the second pin. Wherein, when the second connector is connected to the audio plug, the second data pin is short-circuited with the ground pin via the conductive ring. Therefore, the electronic device determines the connection state of the second connector and the audio plug by the voltage change of the second data pin.

在本發明之一實施例中，上述之轉接器中的第二連接器更包括第三接腳以及第四接腳。此第三接腳用於連接音頻插頭之左聲道導電環。而第四接腳，則是用於連接音頻插頭之右聲道導電環。In an embodiment of the invention, the second connector in the adapter further includes a third pin and a fourth pin. This third pin is used to connect the left channel conductive ring of the audio plug. The fourth pin is the right channel conductive ring for connecting the audio plug.

在本發明之一實施例中，上述之轉接器中的第二接腳組包括第一音頻接腳以及第二音頻接腳。第一音頻接腳電性連接於前述第二連接器的第三接腳。而第一音頻接腳是用以提供左聲道音頻信號之傳輸路徑。相類似的，第二音頻接腳則電性連接於前述第二連接器的第四接腳。第二音頻接腳則是用以提供右聲道音頻信號之傳輸路徑。In an embodiment of the invention, the second pin set of the adapter includes a first audio pin and a second audio pin. The first audio pin is electrically connected to the third pin of the second connector. The first audio pin is used to provide a transmission path for the left channel audio signal. Similarly, the second audio pin is electrically connected to the fourth pin of the second connector. The second audio pin is used to provide a transmission path for the right channel audio signal.

在本發明之一實施例中，上述之轉接器中的第二連接器更包括第五接腳。此第五接腳是用於連接音頻插頭之麥克風導電環。In an embodiment of the invention, the second connector in the adapter further includes a fifth pin. This fifth pin is a microphone conductive ring for connecting an audio plug.

在本發明之一實施例中，上述之轉接器中的第二接腳組包括第三音頻接腳。而此第三音頻接腳電性連接至上述第二連接器的第五接腳。此第三音頻接腳用以提供麥克風之音頻信號之傳輸路徑。In an embodiment of the invention, the second set of pins in the adapter includes a third audio pin. The third audio pin is electrically connected to the fifth pin of the second connector. The third audio pin is used to provide a transmission path of the audio signal of the microphone.

在本發明之一實施例中，上述之轉接器的第一連接器的第一接腳組具有5個接腳，而第二接腳組則具有6個接腳。第一接腳組設置於第一連接器的第一側面。而第二接腳組則是設置於第一連接器的另一面，也就是第二側面。In an embodiment of the invention, the first pin set of the first connector of the adapter has five pins, and the second pin set has six pins. The first pin set is disposed on the first side of the first connector. The second pin set is disposed on the other side of the first connector, that is, the second side.

在本發明之一實施例中，上述之轉接器更包括第三連接器。此第三連接器電性連接於第一連接器，是用於連接通用序列匯流排連接器。In an embodiment of the invention, the adapter further includes a third connector. The third connector is electrically connected to the first connector and is used to connect the universal serial bus connector.

在本發明之一實施例中，上述之轉接器更包括至少一條傳輸線。此傳輸線可用來電性連接第一連接器與第二連接器，或電性連接第一連接器與第三連接器。In an embodiment of the invention, the adapter further includes at least one transmission line. The transmission line can be electrically connected to the first connector and the second connector, or electrically connected to the first connector and the third connector.

在本發明之一實施例中，上述音頻插頭之導電環為用來提供接地端。In an embodiment of the invention, the conductive ring of the audio plug is used to provide a ground terminal.

本發明提供一種連接器。此種連接器適用於連接音頻插頭。並且，此音頻插頭具有接地導電環、左聲道導電環以及右聲道導電環。另外，本發明提出的連接器包括第一接腳、第二接腳、第三接腳以及第四接腳。其中，第一接腳以及第二接腳都是用以耦接接地導電環。而第三接腳則用於連接音頻插頭之左聲道導電環。另外，第四接腳是用於連接音頻插頭之右聲道導電環。其中，第二接腳具有一電壓位準，而第一接腳則具有接地電位。當連接器連接至音頻插頭時，連接器根據第一接腳的電壓變化，來決定該連接器與音頻插頭的連接狀態。The present invention provides a connector. This connector is suitable for connecting an audio plug. Also, the audio plug has a grounded conductive ring, a left channel conductive ring, and a right channel conductive ring. In addition, the connector proposed by the present invention includes a first pin, a second pin, a third pin, and a fourth pin. The first pin and the second pin are both coupled to the ground conductive ring. The third pin is used to connect the left channel conductive ring of the audio plug. In addition, the fourth pin is a right channel conductive ring for connecting the audio plug. Wherein, the second pin has a voltage level, and the first pin has a ground potential. When the connector is connected to the audio plug, the connector determines the connection state of the connector to the audio plug according to the voltage change of the first pin.

在本發明之一實施例中，上述的連接器連接至音頻插頭時，其中的第一電壓位準等同於接地電位。In an embodiment of the invention, when the connector is connected to an audio plug, the first voltage level therein is equal to the ground potential.

在本發明之一實施例中，上述的左聲道導電環用以提供音頻插頭左聲道音頻信號之傳輸路徑。In an embodiment of the invention, the left channel conductive ring is used to provide a transmission path of the left channel audio signal of the audio plug.

在本發明之一實施例中，上述的右聲道導電環用以提供音頻插頭右聲道音頻信號之傳輸路徑。In an embodiment of the invention, the right channel conductive ring is used to provide a transmission path of the right channel audio signal of the audio plug.

在本發明之一實施例中，上述的接地導電環用以提供音頻插頭與接地電位之傳輸路徑。In an embodiment of the invention, the grounding conductive ring is used to provide a transmission path between the audio plug and the ground potential.

在本發明之一實施例中，上述的音頻插頭更具有麥克風導電環。而連接器同時更包括第五接腳，用於耦接麥克風導電環。In an embodiment of the invention, the audio plug further has a microphone conductive ring. The connector further includes a fifth pin for coupling the microphone conductive ring.

在本發明之一實施例中，上述的麥克風導電環用以提供音頻插頭的麥克風音頻信號之傳輸路徑。In an embodiment of the invention, the microphone conductive ring is used to provide a transmission path of a microphone audio signal of the audio plug.

本發明提供一種連接器的連接偵測方法，此方法是用以偵測音頻插頭有無連接至連接器中。其中連接器包括第一接腳與第二接腳。當音頻插頭連接至連接器時，此第一接腳經由該音頻插頭的導電環電性連接此第二接腳。此方法的步驟包括：首先，提供第一電壓於第一接腳。接著，提供第二電壓於第二接腳。並且，偵測第二接腳上的電壓位準，並判斷該音頻插頭與該連接器的連接狀態。The invention provides a connection detection method for a connector, which is used for detecting whether an audio plug is connected to a connector. The connector includes a first pin and a second pin. When the audio plug is connected to the connector, the first pin is electrically connected to the second pin via the conductive ring of the audio plug. The steps of the method include: first, providing a first voltage to the first pin. Next, a second voltage is provided to the second pin. Moreover, the voltage level on the second pin is detected, and the connection state of the audio plug to the connector is determined.

在本發明之一實施例中，上述的判斷該音頻插頭與該連接器的連接狀態的步驟中，包括：首先，偵測到第二接腳的電壓位準是否等於第一電壓。接著，若偵測結果為是，則表示音頻插頭已連接至連接器。相對的，若偵測結果為否，表示該音頻插頭未連接至連接器。In an embodiment of the present invention, the step of determining the connection state of the audio plug and the connector includes: first, detecting whether a voltage level of the second pin is equal to the first voltage. Then, if the detection result is YES, it means that the audio plug is connected to the connector. In contrast, if the detection result is no, it indicates that the audio plug is not connected to the connector.

在本發明之一實施例中，上述的第一電壓包括接地電位，而第二電壓為一個邏輯高電位。In an embodiment of the invention, the first voltage comprises a ground potential and the second voltage is a logic high.

本發明係利用至少兩個連接器構建成的轉接器，來提供連接音頻插頭以及通用序列匯流排介面，並且同時將通用序列匯流排介面與音頻傳輸介面整合於另一連接器上。本發明還利用連接器的兩個接腳，來判斷音頻插頭是否連接至連接器。除此之外，本發明更利用判斷兩接腳電壓位準改變的方法，來完成偵測音頻插頭是否連接至連接器的動作。The present invention utilizes an adapter constructed with at least two connectors to provide a connection audio plug and a universal serial bus interface, and at the same time integrate the universal serial bus interface and the audio transmission interface onto another connector. The present invention also utilizes the two pins of the connector to determine if the audio plug is connected to the connector. In addition, the present invention further utilizes a method of determining the change in the voltage level of the two pins to complete the action of detecting whether the audio plug is connected to the connector.

為讓本發明之上述特徵和優點能更明顯易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說明如下。The above described features and advantages of the present invention will be more apparent from the following description.

第一實施例：First embodiment:

圖1為根據本發明的轉接器的第一實施例之示意圖。請參照圖1，此轉接器100為用以連接電子裝置與音頻插頭，而連接至電子裝置的一端為可同時適用於通用序列匯流排(USB)介面與音頻信號的傳輸。並且，轉接器100更提供兩端皆可適用於USB介面的連接。其中，轉接器100可包括連接器110、連接器120、連接器130、傳輸線140以及傳輸線150。而連接器110、連接器120與連接器130則分別具有連接端111、連接端121與連接端131。1 is a schematic illustration of a first embodiment of an adapter in accordance with the present invention. Referring to FIG. 1 , the adapter 100 is configured to connect an electronic device and an audio plug, and one end connected to the electronic device is simultaneously applicable to a universal serial bus (USB) interface and audio signal transmission. Moreover, the adapter 100 further provides a connection that can be applied to the USB interface at both ends. The adapter 100 may include a connector 110, a connector 120, a connector 130, a transmission line 140, and a transmission line 150. The connector 110, the connector 120 and the connector 130 respectively have a connection end 111, a connection end 121 and a connection end 131.

連接器120為用來連接音頻插頭(audio plug)231,330，並且將相關的音頻信號，例如左、右聲道音頻信號、麥克風音頻信號以及接地電位等，經由傳輸線140傳輸到連接器110。再透過連接器110把信號傳送入電子裝置中。此外，連接器130可用來連接具有USB介面的電子裝置，並且將該電子裝置的相關信號經由傳輸線150傳輸到連接器110。值得一提的是，在連接器110中分別配置有相對應於連接器120以及連接器130的接腳組，並且分別使用獨立的傳輸線140及傳輸線150，使得兩種不同介面的電子裝置可以藉由轉接器100而同時被使用(例如可以同時使用耳機及外接讀卡機)，進而提昇電子裝置的效能。The connector 120 is for connecting audio plugs 231, 330, and transmits related audio signals, such as left and right channel audio signals, microphone audio signals, and ground potential, to the connector 110 via the transmission line 140. The signal is transmitted through the connector 110 into the electronic device. Further, the connector 130 can be used to connect an electronic device having a USB interface and transmit the associated signal of the electronic device to the connector 110 via the transmission line 150. It is worth mentioning that a connector group corresponding to the connector 120 and the connector 130 is respectively disposed in the connector 110, and the separate transmission line 140 and the transmission line 150 are respectively used, so that the electronic devices of the two different interfaces can be borrowed. It is used by the adapter 100 at the same time (for example, the earphone and the external card reader can be used at the same time), thereby improving the performance of the electronic device.

而在連接器110的內部結構則請參照圖1B，圖1B繪示連接器110的內部結構示意圖。連接器110中包括11個接腳P1~P11。接腳P1~P5為第一接腳組，設置於基板的同一側面，接腳P6~P11為第二接腳組，設置於基板的另一側面。在本第一實施例中，連接器110的接腳P6~P11被規劃來用以傳輸音頻信號的接腳組。而接腳P1~P5則是用來傳輸USB介面信號的接腳組。如此一來，連接器110便兼具有傳輸音頻信號以及USB信號雙重的功能。For the internal structure of the connector 110, please refer to FIG. 1B. FIG. 1B is a schematic diagram showing the internal structure of the connector 110. The connector 110 includes 11 pins P1 to P11. The pins P1 to P5 are the first pin groups, and are disposed on the same side of the substrate, and the pins P6 to P11 are the second pin groups, and are disposed on the other side of the substrate. In the first embodiment, the pins P6 to P11 of the connector 110 are planned to transmit pin groups of audio signals. Pins P1~P5 are pin groups for transmitting USB interface signals. In this way, the connector 110 has the dual function of transmitting an audio signal and a USB signal.

上述接腳P1~P11在設計上可依照其功能，設計不同的長度。舉例來說，具有長度L₁ 的為接地接腳，其分別為接腳P5及接腳P10，在連接時具有預先確認接地位準的功效。接腳P6、P7、P11則為音頻接腳，其接腳長度為L₂ 。接腳P1為電源接腳，其接腳長度為L₃ 。另外，接腳P2、P3、P4為信號接腳，其接腳長度為L₄ 。接腳P8、P9為資料接腳，其接腳長度為L₅ 。如圖1B所示，長度L₁ >L₂ >L₃ >L₄ >L₅ 。The above pins P1~P11 are designed to have different lengths according to their functions. For example, the length L ₁ is a ground pin, which is a pin P5 and a pin P10, respectively, and has the effect of pre-confirming the ground level when connected. Pins P6, P7, and P11 are audio pins with a pin length of L ₂ . Pin P1 is a power pin with a pin length of L ₃ . In addition, the pins P2, P3, and P4 are signal pins, and the length of the pins is L ₄ . Pins P8 and P9 are data pins, and the length of the pins is L ₅ . As shown in FIG. 1B, the length L ₁ > L ₂ > L ₃ > L ₄ > L ₅ .

在此針對連接器120的內部結構補充說明，請分別參照圖2A、圖2B以及圖2C。圖2A繪示連接器120的電路示意圖。其中連接器120具有5個接腳PA1~接腳PA5，用以連接音頻插頭，並傳輸相關的音頻信號。而圖2B繪示連接器120的內部結構示意圖。請同時參照圖2A、2B，圖2B繪示接腳PA1至接腳PA5在封裝時的對應接腳位置，其中圖2B所示的元件內部電路即如圖2A所示。圖2C繪示音頻插頭231插入連接器120時，音頻插頭231上的諸導電環與其各接腳PA1至PA5的耦接情形。Here, the internal structure of the connector 120 will be supplementarily explained. Please refer to FIG. 2A, FIG. 2B, and FIG. 2C, respectively. FIG. 2A is a schematic circuit diagram of the connector 120. The connector 120 has five pins PA1~pins PA5 for connecting the audio plugs and transmitting related audio signals. FIG. 2B is a schematic diagram showing the internal structure of the connector 120. Please refer to FIG. 2A and FIG. 2B simultaneously. FIG. 2B illustrates the corresponding pin position of the pin PA1 to the pin PA5 during packaging, wherein the internal circuit of the component shown in FIG. 2B is as shown in FIG. 2A. 2C illustrates the coupling of the conductive rings on the audio plug 231 with the pins PA1 to PA5 when the audio plug 231 is inserted into the connector 120.

連接器110與連接器120內部的線路連接方式請參照圖3，圖3繪示轉接器與音頻插頭330連接時的電路示意圖。其中轉接器100包括連接器110、連接器120以及傳輸線350。連接器310包括接腳組311以及接腳組312。在本實施例中，接腳組311具有5個接腳，且配置於連接器的一側面，接腳組311的配置即與通用序列匯流排(USB)介面相容，具有與USB介面溝通的功能，並電性連接至連接器130。接腳組312具有6個接腳，配置於連接器的另一側面，並電性連接至連接器120，主要用來傳輸音頻信號。換言之，連接器310總共具有11個接腳，利用一側面可傳輸USB信號之接腳配置與另一側面用來傳輸音頻信號之接腳配置，以達到整合USB介面與音頻傳輸介面的功效。Please refer to FIG. 3 for the connection manner between the connector 110 and the connector 120. FIG. 3 is a schematic diagram of the circuit when the adapter is connected to the audio plug 330. The adapter 100 includes a connector 110, a connector 120, and a transmission line 350. The connector 310 includes a pin set 311 and a pin set 312. In this embodiment, the pin set 311 has five pins and is disposed on one side of the connector. The pin group 311 is configured to be compatible with the universal serial bus (USB) interface, and has a communication with the USB interface. Functionally, and electrically connected to the connector 130. The pin set 312 has six pins disposed on the other side of the connector and electrically connected to the connector 120 for mainly transmitting audio signals. In other words, the connector 310 has a total of 11 pins, and the pin configuration for transmitting the USB signal on one side and the pin configuration for transmitting the audio signal on the other side are used to achieve the function of integrating the USB interface and the audio transmission interface.

連接器310中的接腳組312與連接器320中接腳PA1至PA5之間的連接情形說明如下：接地接腳PU5電性連接到接腳PA1，資料接腳PU4及資料接腳PU3共同電性連接到接腳PA2。而音頻接腳PU6電性連接到接腳PA3，音頻接腳PU2電性連接到接腳PA4。且音頻接腳PU1電性連接到接腳PA5。其中接地接腳PU5上的電壓位準為接地位準，而資料接腳PU3與PU4上的電位位準則為邏輯高電位。The connection between the pin group 312 in the connector 310 and the pins PA1 to PA5 in the connector 320 is as follows: the ground pin PU5 is electrically connected to the pin PA1, and the data pin PU4 and the data pin PU3 are electrically connected. Connected to pin PA2. The audio pin PU6 is electrically connected to the pin PA3, and the audio pin PU2 is electrically connected to the pin PA4. And the audio pin PU1 is electrically connected to the pin PA5. The voltage level on the ground pin PU5 is the ground level, and the potential level criterion on the data pins PU3 and PU4 is a logic high level.

當連接器320連接至音頻插頭330時，接腳PA1以及PA2會共同耦接到音頻插頭330的接地導電環334，此時，資料接腳PU3、PU4會因為與接地接腳PU5形成短路而使其電壓位準轉換為邏輯低電位。連接至連接器310的電子裝置(未繪示)便可經由資料接腳PU3或PU4上的電壓變化(邏輯高電位或邏輯低電位)來判斷音頻插頭330是否插入連接器320中。當資料接腳PU3或PU4轉換為邏輯低電位時，表示音頻插頭330已經插入轉接器一端的連接器320中。When the connector 320 is connected to the audio plug 330, the pins PA1 and PA2 are commonly coupled to the ground conductive ring 334 of the audio plug 330. At this time, the data pins PU3 and PU4 may be short-circuited with the ground pin PU5. Its voltage level is converted to a logic low. An electronic device (not shown) connected to the connector 310 can determine whether the audio plug 330 is inserted into the connector 320 via a voltage change (logic high or logic low) on the data pin PU3 or PU4. When the data pin PU3 or PU4 is switched to a logic low level, it indicates that the audio plug 330 has been inserted into the connector 320 at one end of the adapter.

再者，接腳PA3、PA4在音頻插頭330連接至連接器320時，會分別連接音頻插頭330的左聲道導電環331以及右聲道導電環332。若音頻插頭330具有麥克風功能時，接腳PA5則會連接到麥克風導電環333。藉此，連接至連接器310的電子裝置便可經由連接器320接收與傳送音頻信號。此外，上述資料接腳PU3與PU4可整合為同一接腳，或僅利用單一接腳(資料接腳PU3或PU4)來偵測音頻插頭330的插入與否，其偵測原理相同，在此不加累述。Moreover, the pins PA3, PA4 connect the left channel conductive ring 331 and the right channel conductive ring 332 of the audio plug 330 when the audio plug 330 is connected to the connector 320. If the audio plug 330 has a microphone function, the pin PA5 is connected to the microphone conductive ring 333. Thereby, the electronic device connected to the connector 310 can receive and transmit an audio signal via the connector 320. In addition, the above-mentioned data pins PU3 and PU4 can be integrated into the same pin, or only a single pin (data pin PU3 or PU4) can be used to detect the insertion of the audio plug 330, and the detection principle is the same. Add a few words.

綜合上述的連接關係，可以得知接地接腳PU5與接腳PA1提供接地電位的傳輸路徑，而音頻接腳PU6與接腳PA3提供左聲道音頻信號之傳輸路徑，音頻接腳PU2與接腳PA4提供右聲道音頻信號之傳輸路徑。另外，音頻接腳PU1與接腳PA5則是提供麥克風音頻信號之傳輸路徑。更重要是，資料接腳PU4及資料接腳PU3與接地接腳PU5則用來偵測音頻插頭330與連接器320的連接狀態，只要藉由資料接腳PU3或者是資料接腳PU4上的電壓變化，就可以簡單的判斷出音頻插頭330的連接狀態了。In combination with the above connection relationship, it can be known that the ground pin PU5 and the pin PA1 provide a transmission path of the ground potential, and the audio pin PU6 and the pin PA3 provide a transmission path of the left channel audio signal, and the audio pin PU2 and the pin PA4 provides the transmission path of the right channel audio signal. In addition, the audio pin PU1 and the pin PA5 are transmission paths for providing microphone audio signals. More importantly, the data pin PU4 and the data pin PU3 and the ground pin PU5 are used to detect the connection state of the audio plug 330 and the connector 320, as long as the voltage on the data pin PU3 or the data pin PU4 is used. With the change, the connection state of the audio plug 330 can be easily judged.

另外，連接器320也可以直接應用於電子裝備上，例如行動電話上用來連接耳機的插口。與上述說明相同，當在連接器320直接應用於電子裝備上時，同樣利用連接器320中的兩個接腳的電壓位準，便可以偵測出音頻插頭(例如為耳機插頭)是否有連接至連接器320了。In addition, the connector 320 can also be directly applied to electronic equipment, such as a socket for connecting headphones on a mobile phone. As described above, when the connector 320 is directly applied to the electronic equipment, the voltage level of the two pins in the connector 320 can also be used to detect whether the audio plug (for example, the earphone plug) is connected. To the connector 320.

第二實施例：Second embodiment:

以下請參照圖4，圖4繪示本發明之連接器的連接偵測方法的一實施例。此偵測方法是用來偵測音頻插頭有無連接至連接器120、320中。並且，此連接器可包括兩個接腳(在此稱為第一接腳及第二接腳)，其中這兩個接腳在連接器連接至音頻插頭時，會形成電性連接。Please refer to FIG. 4, which illustrates an embodiment of a method for detecting connection of a connector of the present invention. The detection method is used to detect whether the audio plug is connected to the connectors 120, 320. Also, the connector can include two pins (referred to herein as first pins and second pins), wherein the two pins form an electrical connection when the connector is connected to the audio plug.

本實施例的偵測步驟包括：首先，提供一第一電壓於第一接腳上(S410)。接著，提供一第二電壓於該第二接腳(S420)。然後，偵測第二接腳的電壓位準，藉以判斷音頻插頭與連接器的連接狀態(S430)。也就是說，當偵測出來第二接腳上的電位，與第一接腳上的電位相同，則表示音頻插頭已連接至連接器。相反的，若是當偵測出來第二接腳上的電位，與第一接腳上的電位不相同，則表示音頻插頭並未連接至連接器。此處值得一提的是，所謂的第一電壓包括是接地電壓，而第二電壓則包括是邏輯高電位。The detecting step of this embodiment includes: first, providing a first voltage on the first pin (S410). Next, a second voltage is provided to the second pin (S420). Then, the voltage level of the second pin is detected to determine the connection state of the audio plug and the connector (S430). That is, when the potential on the second pin is detected to be the same as the potential on the first pin, it indicates that the audio plug is connected to the connector. Conversely, if the potential on the second pin is detected and the potential on the first pin is different, it means that the audio plug is not connected to the connector. It is worth mentioning here that the so-called first voltage includes a ground voltage and the second voltage includes a logic high potential.

綜合前述，本實施例雖僅以一可同時適用於通用序列匯流排(USB)介面與音頻信號傳輸之轉接器為例，來說明本發明之主要技術手段。但在本實施例中所描述的之各個接腳功能並不以此為限，在本技術領域具有通常知識者經由本發明之揭露，應可輕易推知本發明於不同接腳功能或傳輸介面之轉接器上的應用方式，在此不加累述。In summary, the present embodiment describes the main technical means of the present invention by taking an adapter that can be applied to both a universal serial bus (USB) interface and an audio signal transmission as an example. However, the functions of the pins described in this embodiment are not limited thereto. It should be easily revealed by those skilled in the art that the present invention can be used in different pin functions or transmission interfaces. The application mode on the adapter is not described here.

本發明之轉接器係利用將具有不同介面傳輸功能的連接器結合，並整合在一個裝置上，使其既可傳輸USB信號，又可與音頻信號作溝通，並將該等信號透過電性耦接的方式轉接至一同時具有音頻信號傳輸與通用序列匯流排介面的連接器上，使與其相連接之電子裝置在不須額外增加不同功能的連接器前提下，可以發揮更大的功效與節省生產成本。此外，本發明還利用至少兩個會在插頭連接至連接器後會電性連接的接腳，並經由兩接腳上的電壓測試來加以判斷插頭是否有連接至連接器中。不需使用外加的測試電路，也不需要複雜的計算，在低成本的前提下，得到最好的效果。The adapter of the present invention combines connectors having different interface transmission functions and is integrated on a device to transmit both USB signals and audio signals, and transmit the signals through the electrical signals. The coupling is transferred to a connector having both an audio signal transmission and a universal serial bus interface, so that the electronic device connected thereto can exert greater efficiency without additionally adding a connector with different functions. And save production costs. In addition, the present invention also utilizes at least two pins that will be electrically connected after the plug is connected to the connector, and determines whether the plug is connected to the connector via a voltage test on the two pins. No need to use additional test circuits, no complicated calculations, and the best results at low cost.

雖然本發明已以較佳實施例揭露如上，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，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

100．．．轉接器100. . . Adapter

110、120、130、310、320．．．連接器110, 120, 130, 310, 320. . . Connector

140、150、350．．．傳輸線140, 150, 350. . . Transmission line

111、121、131．．．連接端111, 121, 131. . . Connection end

231、330．．．音頻插頭231, 330. . . Audio plug

311、312．．．接腳組311, 312. . . Pin set

331~334．．．導電環331~334. . . Conductive ring

PA1~PA5、PU1~PU6、P1~P11．．．接腳PA1~PA5, PU1~PU6, P1~P11. . . Pin

S410、S420．．．步驟S410, S420. . . step

L₁ ~L₅ ．．．長度L ₁ ~ L ₅ . . . length

圖1A為根據本發明的轉接器的第一實施例之示意圖。Figure 1A is a schematic illustration of a first embodiment of an adapter in accordance with the present invention.

圖1B繪示連接器110的內部結構示意圖。FIG. 1B is a schematic diagram showing the internal structure of the connector 110.

圖2A繪示連接器120的電路示意圖。FIG. 2A is a schematic circuit diagram of the connector 120.

圖2B繪示連接器120的內部結構示意圖。FIG. 2B is a schematic diagram showing the internal structure of the connector 120.

圖2C繪示音頻插頭插入連接器時，音頻插頭231上的導電環與連接器內各接腳PA1~PA5的耦接關係。2C illustrates the coupling relationship between the conductive ring on the audio plug 231 and the pins PA1~PA5 in the connector when the audio plug is inserted into the connector.

圖3繪示轉接器與音頻插頭連接時的電路示意圖。FIG. 3 is a schematic circuit diagram of the adapter connected to the audio plug.

圖4繪示本發明之連接器的連接偵測方法的一實施例。FIG. 4 illustrates an embodiment of a method for detecting a connection of a connector of the present invention.

100．．．轉接器100. . . Adapter

110、120、130．．．連接器110, 120, 130. . . Connector

140、150．．．傳輸線140, 150. . . Transmission line

111、121、131．．．連接端111, 121, 131. . . Connection end