# US 8,543,159 B2 · Mobile phone

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- Number: US 8,543,159 B2
- Document ID: US8543159B2
- Status: Granted
- Kind: B2
- Application number: 12/974,675
- Filed: 2010-12-21
- Published: 2011-06-30
- Granted: 2013-09-24
- Earliest claimed: 2009-12-21
- Assignees: LG Innotek Co., Ltd.
- Applicants: Duhee Kim
- Inventors: Duhee Kim
- Web page: https://patentgrep.com/patent/US8543159B2

## CPC

- H04M 1/0264: {for a camera module assembly}
- G02B 7/006: {Filter holders}
- G02B 7/08: adapted to co-operate with a remote control mechanism
- G02B 7/09: adapted for automatic focusing or varying magnification
- G03B 3/10: Power-operated focusing
- G03B 5/00: Adjustment of optical system relative to image or object surface other than for focusing
- G03B 13/36: Autofocus systems
- H04M 1/0266: {for a display module assembly}
- H04N 1/00307: {with a mobile telephone apparatus (constructional features of portable telephone sets H04M1/0202; mobile radio systems H04W84/00)}
- H04N 23/51: Housings
- H04N 23/54: Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
- H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof
- H04N 23/57: Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
- G02B 5/208: {for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation}
- G03B 2205/0007: Movement of one or more optical elements for control of motion blur
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

Disclosed herein is a mobile phone. In short, a mobile terminal of the present invention includes an actuator placed inside the camera module to shift a lens of the camera module toward an upper side of an optical axis direction when a forward current is applied and shift the lens toward a lower side of an optical axis direction when a reverse current is applied, a vibration control part placed outside of the camera module to output a first control signal and a second control signal when a signal from outside is input telling of operating in a vibration mode, a vibration motor part connected to the vibration control part to vibrate the mobile phone by driving a motor when the first control signal is input, and an actuator drive part connected to the vibration control part to apply the reverse current to the actuator when the second control signal is input.

## Claims

### Claim 1

A mobile phone including a camera module, composing:
a vibration control part configured to output a first control signal for vibrating the mobile phone and a second control signal for driving an actuator when the mobile phone is operated in a vibration mode:
a vibration motor part configured to vibrate the mobile phone by driving a motor in response to the first control signal;
the actuator drive part configured to drive the actuator in response to the second control signal; and
an actuator placed inside the camera module configured to perform an auto focusing function by applying a forward current to a coil and to perform moving and fixing a bobbin including a lens toward a lower side of an optical-axis direction by applying a reverse current to the coil in response to the second control signal.

### Claim 2 (depends on 1)

The mobile phone of claim 1, wherein the vibration control part simultaneously outputs the first control signal and the second control signal.

### Claim 3 (depends on 1)

The mobile phone of claim 1, wherein the vibration control unit outputs the first control signal after the second control signal is output.

### Claim 4 (depends on 1)

The mobile phone of claim 1, wherein the actuator drive part applies the forward current to the actuator in an auto focusing mode.

### Claim 5 (depends on 4)

The mobile phone of claim 4, wherein the actuator drive part applies a reverse current to the actuator in the vibration mode.

### Claim 6

A mobile phone comprising:
a vibration control unit outputting a first control signal for vibrating the mobile phone and a second control signal for driving the actuator;
a vibration motor unit configured to vibrate the mobile phone by driving a motor of the mobile phone when the first control signal is inputted; and
an actuator drive part configured to apply a reverse current to an actuator when the second control signal is inputted; and
where the actuator is placed inside a camera module of the mobile phone and configured to perform auto focusing function by applying a forward current to a coil and to perform fixing a bobbin by applying a reverse current to the coil in response to the second control signal such that the actuator reverses moving direction of the lens and the lens moves only toward a lower side of an optical-axis direction.

### Claim 7 (depends on 6)

The mobile phone of claim 6, wherein the upper elastic member and the lower elastic member include plate springs.

### Claim 8 (depends on 6)

The mobile phone of claim 6, wherein after the actuator drive part fixes the bobbin to the lower elastic member, the vibration motor unit vibrates the mobile phone by driving a motor of the mobile phone in response to the first control signal.

### Claim 9 (depends on 8)

The mobile phone of claim 8, wherein the actuator comprises:
the bobbin having a screw thread coupling to a thread of a lens barrel;
a coil coupled to the bobbin;
a permanent magnet facing the coil; and
a yoke.

### Claim 10 (depends on 9)

The mobile phone of claim 9, wherein the yoke is placed inside a case.

### Claim 11 (depends on 6)

The mobile phone of claim 6, wherein the actuator includes a voice coil motor.

### Claim 12 (depends on 6)

The mobile phone of claim 6, wherein the first control signal is outputted after the second control signal is outputted.

### Claim 13 (depends on 6)

The mobile phone of claim 6, wherein the vibration control unit simultaneously outputs the first control signal and the second control signal.

### Claim 14 (depends on 6)

The mobile phone of claim 6, wherein the actuator drive part applies a forward current to the actuator in an auto-focusing mode.

### Claim 15 (depends on 14)

The mobile phone of claim 14, wherein the actuator drive part applies a reverse current to the actuator in a vibration mode.

### Claim 16 (depends on 6)

The mobile phone of claim 6, wherein the actuator drive part applies the forward current to the actuator in an auto-focusing mode and the actuator drive part applies the reverse current to the actuator in a vibration mode.

### Claim 17 (depends on 6)

The mobile phone of claim 6, wherein the vibration control unit outputs the first control signal and the second control signal when the mobile phone is to operate in a vibration mode.

### Claim 18 (depends on 6)

The mobile phone of claim 6, wherein the actuator is placed at a case inner side of the camera module.

### Claim 19 (depends on 18)

The mobile phone of claim 18, wherein the lens is placed at a case outer side of the camera module.

### Claim 20 (depends on 18)

The mobile phone of claim 18, wherein the actuator moves a lens barrel along all optic-axis direction.

### Claim 21 (depends on 20)

The mobile phone of claim 20, wherein the actuator includes an upper part elastic member pressurizing an upper side of the bobbin and a lower part elastic member pressurizing a lower side of the bobbin.

### Claim 22 (depends on 21)

The mobile phone of claim 21, wherein the actuator drive part closely fixes the bobbin to the lower part elastic member through the second control signal.