TYPE-C INTERFACE CONTROLLING CIRCUIT, CONTROLLING METHOD AND MOBILE TERMINAL

• US 20200133908A1
• Filed: 12/20/2017
• Published: 04/30/2020
• Est. Priority Date: 02/16/2017
• Status: Active Grant

• Current Assignee: Vivo Mobile Communication Co., Ltd. (Vivo Communication Technology Co. Ltd.)
• Original Assignee: Vivo Mobile Communication Co., Ltd. (Vivo Communication Technology Co. Ltd.)
• Inventors: YIN, Quanxi
• Granted Patent: US 10,949,374 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 13/385 for adaptation of a particular data processing system to different peripheral devices
• CPC Class Codes: G06F 13/4022 using switching circuits, e.g. switching matrix, connection or expansion network G06F13/4009 takes precedence
• CPC Class Codes: G06F 13/4077 Precharging or discharging
• CPC Class Codes: G06F 13/4282 on a serial bus, e.g. I2C bus, SPI bus on daisy chain buses G06F13/4247

Abstract

The present disclosure provides a Type-C interface controlling circuit, a controlling method, and a mobile terminal, wherein the Type-C interface controlling circuit includes: a Type-C interface, a first transmission module, a second transmission module, a switching module, and a detection module. The first end of the detection module is connected to the Type-C interface for detecting a connection state of the Type-C interface, and the second end of the detection module is connected to the switching module, and the detection module controls a connection relationship between the first end of the switching module and the second end of the switching module according to the connection state.

Claims

1. A Type-C interface controlling circuit comprising:

a Type-C interface comprising a first pin face and a second pin face which are symmetric, wherein the first pin face and the second pin face each comprises a multiplexed pin, and the multiplexed pin of each pin face is provided for transmitting at least two types of signals;

a first transmission module, configured to transmit a first type of signal;

a second transmission module, configured to transmit a second type of signal;

a switching module comprising a first switching unit and a second switching unit, a first end of the first switching unit is connected to the multiplexed pin of the first pin face, and a second end of the first switching unit is connected to the first transmission module, and a first end of the second switching unit is connected to the multiplexed pin of the second pin face, and a second end of the second switching unit is connected to the second transmission module;

a detection module, a first end of the detection module is connected to the Type-C interface for detecting a connection state of the Type-C interface, and a second end of the detection module is connected to the switching module, and the detection module controls a connection relationship between the first end of the switching module and the second end of the switching module according to the connection state.

2. The Type-C interface controlling circuit according to claim 1, wherein

when the connection state of the Type-C interface is a first connection state, the detection module controls the first end of the first switching unit to be connected to the second end of the first switching unit, and controls the second end of the second switching unit to be connected to the second end of the second switching unit;

when the connection state of the Type-C interface is a second connection state, the detection module controls the first end of the first switching unit to be connected to the second end of the second switching unit, and controls the first end of the second switching unit to be connected to the second end of the first switching unit.

3. The Type-C interface controlling circuit according to claim 2, wherein the first pin face includes a first positive differential signal multiplexed pin and a first negative differential signal multiplexed pin, and the second pin face includes a second positive differential signal multiplexed pin and a second negative differential signal multiplexed pin;

the first switching unit includes a first switch and a second switch, the second switching unit includes a third switch and a fourth switch;

a first end of the first switch is connected to the first positive differential signal multiplexed pin, a first end of the second switch is connected to the first negative differential signal multiplexed pin, a first end of the third switch is connected to the second positive differential signal multiplexed pin, and the first end of the fourth switch is connected to the second negative differential signal multiplexed pin;

when the connection state of the Type-C interface is the first connection state, the first end of the first switch is connected to the second end of the third switch, and the first end of the second switch is connected to the second end of the second switch, the first end of the third switch is connected to the second end of the third switch, and the first end of the fourth switch is connected to the second end of the fourth switch;

when the connection state of the Type-C interface is the second connection state, the first end of the first switch is connected to the second end of the third switch, and the first end of the second switch is connected to the second end of the fourth switch, the first end of the third switch is connected to the second end of the first switch, and the first end of the fourth switch is connected to the second end of the second switch.

4. The Type-C interface controlling circuit according to claim 2, wherein the first pin face comprises a first connecting pin, the second pin face comprises a second connecting pin, the first end of the detection module is connected to the first connecting pin and the second connecting pin;

when the first end of the detection module receives signals from the first connecting pin, the connection state of the Type-C interface is the first connection state;

when the first end of the detection module receives signals from the second connecting pin, the connection state of the Type-C interface is the second connection state.

5. The Type-C interface controlling circuit according to claim 3, wherein the first pin face comprises a first connecting pin, the second pin face comprises a second connecting pin, the first end of the detection module is connected to the first connecting pin and the second connecting pin;

when the first end of the detection module receives signals from the first connecting pin, the connection state of the Type-C interface is the first connection state;

when the first end of the detection module receives signals from the second connecting pin, the connection state of the Type-C interface is the second connection state.

6. The Type-C interface controlling circuit according to claim 3,

wherein the first switch, the second switch, the third switch, and the fourth switch are single pole double throw switches.

7. The Type-C interface controlling circuit according to claim 3, wherein the first transmission module is an audio decoding module;

the second transmission module is a universal serial bus (USB) module.

8. The Type-C interface controlling circuit according to claim 7, wherein the audio decoding module comprises a left channel decoding unit and a right channel decoding unit, the left channel decoding unit and the right channel decoding unit are respectively connected to the first switch and the second switch.

11. A mobile terminal, comprising the Type-C interface controlling circuit according to claim 1.

9. A Type-C interface controlling method applied to a Type-C interface having a multiplexed pin on each pin face being connected to a switching module, the method comprising:

detecting a connection state of the Type-C interface; and

controlling a connection relationship between a first end of the switching module and a second end of the switching module according to the connection state of the Type-C interface.

10. The method of claim 9, wherein the switching module comprises a first switching unit and a second switching unit;

the step of controlling the connection relationship between the first end of the switching module and the second end of the switching module according to the connection state of the Type-C interface comprises;

when the connection state of the Type-C interface is a first connection state, controlling the first end of the first switching unit to be connected to the second end of the first switching unit, and controlling the first end of the second switching unit to be connected to the second end of the second switching unit;

when the connection state of the Type-C interface is a second connection state, controlling the first end of the first switching unit to be connected to the second end of the second switching unit, and controlling the first end of the second switching unit to be connected to the second end of the first switching unit.