# US 2022/0035033 A1 · Terminal

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- Number: US 2022/0035033 A1
- Document ID: US20220035033A1
- Status: Published application
- Kind: A1
- Application number: 17/505,490
- Filed: 2021-10-19
- Published: 2022-02-03
- Earliest claimed: 2019-04-24
- Assignees: Vivo Mobile Communication Co., Ltd.
- Applicants: Vivo Mobile Communication Co.,Ltd.
- Inventors: Hengwei ZHAO; Xuejun XIAO
- Web page: https://patentgrep.com/patent/US20220035033A1

## CPC

- G01S 17/08: for measuring distance only (indirect measurement G01S17/46; active triangulation systems G01S17/48)
- H04M 1/026: {Details of the structure or mounting of specific components}
- G01S 7/481: Constructional features, e.g. arrangements of optical elements
- G01S 7/4813: {Housing arrangements}
- G01S 7/4814: {of transmitters alone}
- G01S 7/4816: {of receivers alone}
- G01S 17/04: Systems determining the presence of a target
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)

## Abstract

A terminal includes: a glass cover plate, an infrared sensor including a transmitter and a receiver, and a first light guide structure and/or a second light guide structure. The first light guide structure is fixed between the transmitter and the glass cover plate, and the second light guide structure is fixed between the receiver and the glass cover plate. The first light guide structure extends obliquely from a light emitting surface of the transmitter toward the glass cover plate, and an oblique direction is away from an orthographic projection of the receiver on the glass cover plate. The second light guide structure extends obliquely from a light emitting surface of the receiver toward the glass cover plate, and an oblique direction is away from an orthographic projection of the transmitter on the glass cover plate.

## Claims

### Claim 1

A terminal, comprising:
a glass cover plate;
an infrared sensor, wherein the infrared sensor comprises a transmitter and a receiver; and
a first light guide structure and/or a second light guide structure, wherein the first light guide structure is fixed between the transmitter and the glass cover plate, and the second light guide structure is fixed between the receiver and the glass cover plate;
the first light guide structure obliquely extends from a light emitting surface of the transmitter toward the glass cover plate, and an oblique direction is away from an orthographic projection of the receiver on the glass cover plate; and
the second light guide structure obliquely extends from a light emitting surface of the receiver toward the glass cover plate, and an oblique direction is away from an orthographic projection of the transmitter on the glass cover plate.

### Claim 2 (depends on 1)

The terminal according to claim 1, wherein a nearest distance between the infrared sensor and a target overlapping area is greater than a distance between a first surface of the glass cover plate and the infrared sensor, and the first surface is a surface of the glass cover plate facing the infrared sensor; and
the target overlapping area is an overlapping area of an opening angle of the first light guide structure facing the glass cover plate and a receiving angle of the receiver, or an overlapping area of an opening angle of the second light guide structure facing the glass cover plate and an emission angle of the transmitter, or an overlapping area of the opening angle of the first light guide structure facing the glass cover plate and the opening angle of the second light guide structure facing the glass cover plate.

### Claim 3 (depends on 1)

The terminal according to claim 1, wherein the first light guide structure comprises a first light guide tube and a second light guide tube, a first end of the first light guide tube faces the transmitter, a second end of the first light guide tube is communicated with and fixedly connected to a first end of the second light guide tube, and a second end of the second light guide tube faces the glass cover plate; and
an inner wall of the first light guide tube is coated with a specular reflection material, an inner wall of the second light guide tube is coated with a light absorbing material, and an included angle between an axis of the first light guide tube and a facing direction of the transmitter is greater than 0° and less than 90°.

### Claim 4 (depends on 3)

The terminal according to claim 3, wherein the first light guide structure further comprises a first transition light guide tube, a first end of the first transition light guide tube faces the transmitter, a second end of the first transition light guide tube is communicated with and fixedly connected to the first end of the first light guide tube, an inner wall of the first transition light guide tube is coated with a specular reflection material, and an axis of the first transition light guide tube is parallel to the facing direction of the transmitter.

### Claim 5 (depends on 3)

The terminal according to claim 3, wherein the first light guide structure further comprises a second transition light guide tube, a first end of the second transition light guide tube is communicated with and fixedly connected to the second end of the first light guide tube, a second end of the second transition light guide tube is communicated with and fixedly connected to the first end of the second light guide tube, an inner wall of the second transition light guide tube is coated with a specular reflection material, and an axis of the second transition light guide tube is parallel to the facing direction of the transmitter.

### Claim 6 (depends on 3)

The terminal according to claim 3, wherein a difference between an angle 45° and the included angle between the axis of the first light guide tube and the facing direction of the transmitter is within a preset range.

### Claim 7 (depends on 3)

The terminal according to claim 3, wherein the second light guide tube is horn-shaped, and a horn opening faces the glass cover plate.

### Claim 8 (depends on 1)

The terminal according to claim 1, wherein the second light guide structure comprises a third light guide tube and a fourth light guide tube, a first end of the third light guide tube faces the receiver, a second end of the third light guide tube is communicated with and fixedly connected to a first end of the fourth light guide tube, and a second end of the fourth light guide tube faces the glass cover plate; and
an inner wall of the third light guide tube is coated with a specular reflection material, an inner wall of the fourth light guide tube is coated with a reflection material, and an included angle between an axis of the third light guide tube and a facing direction of the receiver is greater than 0° and less than 90°.

### Claim 9 (depends on 8)

The terminal according to claim 8, wherein the second light guide structure further comprises a third transition light guide tube, a first end of the third transition light guide tube faces the receiver, a second end of the third transition light guide tube is communicated with and fixedly connected to the first end of the third light guide tube, an inner wall of the third transition light guide tube is coated with a specular reflection material, and an axis of the third transition light guide tube is parallel to the facing direction of the receiver.

### Claim 10 (depends on 8)

The terminal according to claim 8, wherein the second light guide structure further comprises a fourth transition light guide tube, a first end of the fourth transition light guide tube is communicated with and fixedly connected to the second end of the third light guide tube, a second end of the fourth transition light guide tube is communicated with and fixedly connected to the first end of the fourth light guide tube, an inner wall of the fourth transition light guide tube is coated with a specular reflection material, and an axis of the fourth transition light guide tube is parallel to the facing direction of the receiver.

### Claim 11 (depends on 8)

The terminal according to claim 8, wherein a difference between an angle 45° and the included angle between the axis of the third light guide tube and the facing direction of the receiver is within a preset range.

### Claim 12 (depends on 8)

The terminal according to claim 8, wherein the fourth light guide tube is horn-shaped, and a horn opening faces the glass cover plate.

### Claim 13 (depends on 8)

The terminal according to claim 8, wherein the reflection material coated on the inner wall of the fourth light guide tube is a specular reflection material.

### Claim 14 (depends on 1)

The terminal according to claim 1, further comprising a support structure, wherein the support structure is located between the glass cover plate and the infrared sensor, and the first light guide structure and/or the second light guide structure are/is fixed on the support structure.

### Claim 15 (depends on 1)

The terminal according to claim 1, wherein the first light guide structure is spaced from the transmitter by a first preset distance, and the first light guide structure is spaced from the glass cover plate by a second preset distance; and
the second light guide structure is spaced from the receiver by a third preset distance, and the second light guide structure is spaced from the glass cover plate by a fourth preset distance.