# US 12,222,762 B2 · Electronic device

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- Number: US 12,222,762 B2
- Document ID: US12222762B2
- Status: Granted
- Kind: B2
- Application number: 17/974,512
- Filed: 2022-10-26
- Published: 2023-02-16
- Granted: 2025-02-11
- Earliest claimed: 2020-04-29
- Assignees: Vivo Mobile Communication Co., Ltd.
- Applicants: Vivo Mobile Communication Co., Ltd.
- Inventors: Weiyang Liu
- Web page: https://patentgrep.com/patent/US12222762B2

## CPC

- G06F 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position}
- G06F 1/1641: {the display being formed by a plurality of foldable display components (G06F1/1647 takes precedence)}
- G06F 1/1622: {with enclosures rotating around an axis perpendicular to the plane they define or with ball-joint coupling, e.g. PDA with display enclosure orientation changeable between portrait and landscape by rotation with respect to a coplanar body enclosure}
- G06F 1/1677: {for detecting open or closed state or particular intermediate positions assumed by movable parts of the enclosure, e.g. detection of display lid position with respect to main body in a laptop, detection of opening of the cover of battery compartment}
- G06F 1/1681: {Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683)}
- G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED}
- G01D 5/241: by relative movement of capacitor electrodes
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR

## Abstract

An electronic device is provided. The electronic device includes a first foldable main body, a second foldable main body disposed on a side of the first foldable main body, a rotating shaft disposed between the first foldable main body and the second foldable main body and configured to rotationally connect the two foldable main bodies, and a detection assembly configured to detect a relative angle between the two foldable main bodies.

## Claims

### Claim 1

An electronic device, comprising:
a first foldable main body;
a second foldable main body, disposed on a side of the first foldable main body;
a rotating shaft, disposed between the first foldable main body and the second foldable main body, wherein the first foldable main body and the second foldable main body are rotationally connected to each other by the rotating shaft; and
a detection assembly, configured to detect a relative angle between the first foldable main body and the second foldable main body,
wherein the detection assembly comprises a first detection part and a second detection part, the first detection part is fixed relative to one of the first foldable main body or the second foldable main body, and the second detection part is fixed relative to the other one of the first foldable main body or the second foldable main body; and
the second detection part comprises a plurality of capacitors, wherein the capacitors are disposed at intervals in a rotating direction of the first foldable main body and the second foldable main body, capacitances of the capacitors are different from one another, the first detection part is switchably connected to the capacitors, and in a case that the first detection part is connected to one of the capacitors, the first detection part is conducted with the second detection part to form a detection loop.

### Claim 2 (depends on 1)

The electronic device according to claim 1, wherein the first foldable main body is fixed relative to the rotating shaft, the second foldable main body is rotationally mounted on the rotating shaft, the first detection part is mounted on the first foldable main body or the rotating shaft, and the second detection part is fixedly connected to the second foldable main body.

### Claim 3 (depends on 2)

The electronic device according to claim 2, further comprising:
a circuit board, wherein a through hole is formed in the circuit board, the rotating shaft penetrates the through hole, the capacitors are disposed on the circuit board at intervals in a circumferential direction of the rotating shaft, the circuit board is fixed relative to the second foldable main body, and the first detection part is fixed relative to the first foldable main body.

### Claim 4 (depends on 1)

The electronic device according to claim 1, wherein the first foldable main body is configured to rotate relative to the rotating shaft, the second foldable main body is configured to rotate relative to the rotating shaft, the first detection part is mounted on the first foldable main body, and the second detection part is fixedly connected to the second foldable main body.

### Claim 5 (depends on 1)

The electronic device according to claim 1, wherein the first detection part comprises a conductive spring plate, the conductive spring plate is provided with a protruding part, and the protruding part is switchably connected to the capacitors.

### Claim 6 (depends on 5)

The electronic device according to claim 5, wherein the second detection part further comprises a plurality of conductive parts, each of the conductive parts is connected to one of the capacitors, and in a case that the protruding part is connected to one of the conductive parts, the conductive spring plate, the conductive part, and the capacitor are conducted with one another to form the detection loop.

### Claim 7 (depends on 1)

The electronic device according to claim 1, wherein each capacitor is grounded.

### Claim 8 (depends on 1)

The electronic device according to claim 1, wherein the detection loop further comprises a capacitance reader and a controller connected to the capacitance reader, the capacitance reader obtains a current capacitance of one of the capacitors that is connected to the first detection part, and the controller stores a target capacitance and obtains the relative angle between the first foldable main body and the second foldable main body based on the current capacitance and the target capacitance.

### Claim 9 (depends on 8)

The electronic device according to claim 8, wherein the capacitors are uniformly disposed at intervals in a one-to-one correspondence with a plurality of target capacitances, wherein each of the target capacitances corresponds to one relative angle between the first foldable main body and the second foldable main body.