Switching control circuit, terminal equipment and switching control method
A technology for controlling circuits and terminal equipment, which is applied in the electronic field and can solve problems such as crosstalk incompatibility, microphone unavailability, and sound distortion
Active Publication Date: 2022-05-20
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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- Description
- Claims
- Application Information
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Problems solved by technology
[0003] Due to the different internal connection methods of earphones of different standards, currently the terminal generally only supports one standard, resulting in incompatibility problems such as sound distortion and crosstalk when the earphone jack of the terminal does not match the earphone type, and may even cause the microphone to be unavailable
Method used
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[0019] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0020] Before explaining the embodiment of the present application in detail, first explain the concepts involved in the embodiment of the present application as follows:
[0021] 1. Headphone holder: the socket of the headphone.
[0022] 2. American Standard: Corresponding to the CTIA standard, also known as the international standard, the pin order of the 3.5mm earphones of the American Standard earphones is (from the outside to the inside, in which, when the earphone is inserted into the earphone socket, the side that first enters the earphone socket is the outside): Left channel - right channel - ground - microphone (L / R / G / M).
[0023] 3. European standard earphone...
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The application discloses a switching control circuit, terminal equipment and switching control method, which relate to the field of electronic technology and are applied to terminal equipment including first and second power supply terminals and an audio connector, and the audio connector includes first and second power supplies pin, the switching control circuit includes a detection module, a first switch module and a second switch module; the detection module is connected to the first or second power supply pin, and is used to detect whether the types of the two are connected when the audio playback device is connected to the audio connector Matching; the first power supply pin is connected to the first power supply terminal through the first switch module, and connected to the second power supply terminal through the second switch module; the second power supply pin is connected to the second power supply terminal through the first switch module, and connected to the second power supply terminal through the second switch module connected to the first power supply terminal; the first and second switch modules are respectively connected to the detection module, the first switch module is used for conduction when the type matches; the second switch module is used for conduction when the type does not match. This makes it compatible with audio playback devices of different standards.
Description
technical field [0001] The present application relates to the field of electronic technology, and more specifically, to a switching control circuit, a terminal device, and a switching control method. Background technique [0002] There are two main standards for earphones on the market, the OMTP standard of the Open Mobile Terminal Platform Organization (Open MobileTerminal Platform, OMTP), also known as the national standard or European standard, and the Cellular Telecommunications Industry Association (CTIA) of the United States. CTIA standard, also known as international standard or American standard. [0003] Due to the different internal connection methods of earphones of different standards, currently the terminal generally only supports one standard, resulting in incompatibility problems such as sound distortion and crosstalk when the earphone jack of the terminal does not match the earphone type, and may even cause the microphone to be unavailable . Contents of th...
Claims
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IPC IPC(8): H04R1/10H04R29/00
CPCH04R1/10H04R1/1041H04R29/001H04R2420/05
Inventor 陈刚
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD