# US 2011/0255016 A1 · Notebook computer with projection function

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- Number: US 2011/0255016 A1
- Document ID: US20110255016A1
- Status: Published application
- Kind: A1
- Application number: 12/784,721
- Filed: 2010-05-21
- Published: 2011-10-20
- Earliest claimed: 2010-04-16
- Assignees: Hon Hai Precision Industry Co., Ltd.; HON FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
- Inventors: CHIA-SHIN CHOU; XIANG CAO; ZHEN-XING YE
- Web page: https://patentgrep.com/patent/US20110255016A1

## CPC

- G06F 1/1639: {the display being based on projection}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A notebook computer includes a central processing unit, a video card, a display coupled to the video card, a projecting module, and a projector driving module. The video card is coupled to the central processing unit via a bridge and configured to receive graphical information from the central processing unit. The projecting module is coupled to the video card. The projector driving module is coupled to the projecting module and configured to activate the projecting module. The video card is capable of generating and outputting images to the display or the projecting module according to the graphical information as desired. The projecting module is capable of projecting the images after being activated by the projector driving module.

## Claims

### Claim 1

A notebook computer comprising:
a central processing unit;
a video card, coupled to the central processing unit via a bridge, configured to receive graphical information from the central processing unit;
a display coupled to the video card;
a projecting module coupled to the video card; and
a projector driving module, coupled to the projecting module, configured to activate the projecting module;
wherein the video card is capable of generating and outputting images to the display and the projecting module, and the projecting module is capable of projecting the images onto a screen after being activated by the projector driving module.

### Claim 2 (depends on 1)

The notebook computer of claim 1, wherein the video card comprises a first interface coupled to the central processing unit via the bridge and a graphics processing unit coupled to the first interface; and the first interface is configured to receive the graphical information from the central processing unit, the graphics processing unit is configured to process the graphical information and generates digital video signals.

### Claim 3 (depends on 2)

The notebook computer of claim 2, wherein the video card further comprises a video memory configured to temporarily store the digital video signals outputted from the graphics processing unit.

### Claim 4 (depends on 3)

The notebook computer of claim 3, wherein the video card further comprises a digital-to-analog convertor coupled to the video memory, and the digital-to-analog convertor is capable of converting the digital video signals to analog video signals that form the images.

### Claim 5 (depends on 4)

The notebook computer of claim 4, wherein the video card further comprises a second interface and a third interface that are both coupled to the digital-to-analog convertor, the second interface is configured to output the images to the display, and the third interface is configured to send the images to the projecting module.

### Claim 6 (depends on 5)

The notebook computer of claim 5, wherein the images comprises red, green, blue (RGB) signals, and the third interface of the video card is capable of outputting the RGB signals to the projecting module.

### Claim 7 (depends on 6)

The notebook computer of claim 6, wherein the projecting module includes a RGB signal receiving unit that is configured to receive the RGB signals from the video card.

### Claim 8 (depends on 7)

The notebook computer of claim 7, wherein the projecting module further comprises a RGB signal processing unit that is coupled to the RGB signal receiving unit, and the RGB signal processing unit is capable of processing the RGB signals and generating projectable light signals.

### Claim 9 (depends on 8)

The notebook computer of claim 8, wherein the projecting module further comprises a projector lens that is configured to receive the projectable light signals and project the projectable light signals to the screen.

### Claim 10 (depends on 9)

The notebook computer of claim 9, wherein the projecting module further comprises a projector setting module coupled to the projector lens, and the projector setting module is capable of setting a zoom ratio and a focus of the projector lens.

### Claim 11

A notebook computer comprising:
a central processing unit;
a display;
a projecting module;
a video card that allows the central processing unit to send graphical information to the display and/or the projecting module;
wherein the video card has a first interface configured to receive the graphical information, a second interface configured to send the graphical information to the display, and a third interface configured to send the graphical information to the projecting module.

### Claim 12 (depends on 11)

The notebook computer of claim 11, wherein the video card comprises a graphics processing unit coupled to the first interface, and the graphics processing unit is configured to process the graphical information and generate digital video signals.

### Claim 13 (depends on 12)

The notebook computer of claim 12, wherein the video card further comprises a digital-to-analog convertor coupled to the graphics processing unit, and the digital-to-analog convertor is capable of converting the digital video signals to analog video signals and sending the analog video signals to the second interface and the third interface.

### Claim 14 (depends on 13)

The notebook computer of claim 13, wherein the analog video signals comprises red, green, blue (RGB) signal, and the third interface of the video card is capable of sending the RGB signals to the projecting module.

### Claim 15 (depends on 14)

The notebook computer of claim 14, wherein the projecting module comprises a RGB signal receiving unit, a RGB signal processing unit coupled to the RGB signal receiving unit, and a projector lens coupled to the RGB signal processing unit.

### Claim 16 (depends on 15)

The notebook computer of claim 15, wherein the projecting module further comprises a setting module coupled to the projector lens, and the setting module is configured to set a zoom ratio and a focus of the projector lens.

### Claim 17 (depends on 11)

The notebook computer of claim 11, further comprising a projector driving module coupled to the projecting module, and the projector driving module is capable of activating the projecting module.
