DIGITAL PHOTO FRAME WITH A FUNCTION OF AUTOMATICALLY POWER OFF

• US 20090147156A1
• Filed: 10/29/2008
• Published: 06/11/2009
• Est. Priority Date: 12/05/2007
• Status: Active Grant

• Current Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: LI, XIAO-GUANG, PAN, ZAI-AN, TSAI, MING-FENG, CHEN, XIAO-FANG
• Granted Patent: US 8,189,124 B2
• Time in Patent Office: Days
• US Class Current: 348/836
• CPC Class Codes: H04N 1/00347 with another still picture apparatus, e.g. hybrid still picture apparatus circuits or arrangements for control or supervision between image input and image output device H04N1/32
• CPC Class Codes: H04N 1/00891 Switching on or off, e.g. for saving power when not in use H04N1/00896 takes precedence
• CPC Class Codes: H04N 2201/0087 Image storage device
• CPC Class Codes: H04N 2201/0089 Image display device

Abstract

A digital photo frame with a function of automatically power off is provided. The digital photo frame includes a display unit, a power management unit, a storage unit, a detection unit, and a processing unit. The detection unit detects whether there is some one around the digital photo frame. The processing unit controls the power management unit to stop providing power to the display unit if the detection unit detects nobody around the digital photo frame in a first predetermined time period, and controls the power management unit to stop providing power to the digital photo frame if the detection unit detects nobody around the digital photo frame in a second predetermined time period.

Claims

1. A digital photo frame comprising:

a power jack configured for connecting to a power source;

a power management unit configured for distributing power from the power jack to the digital photo frame;

a storage unit configured for storing a plurality of digital pictures;

a display unit configured for displaying the digital pictures;

a detection unit configured for detecting whether there is a person around the digital photo frame;

a processing unit connected with the detection unit and configured for controlling the power management unit to stop providing power to the display unit if the detection unit detects nobody around the digital photo frame in a first predetermined time period, controlling the power management unit to stop providing power to the digital photo frame if the detection unit detects nobody around the digital photo frame in a second predetermined time period.

2. The digital photo frame of claim 1, wherein the processing unit is further configured to control the power management unit to distribute power from the power source to the display unit again if the detection unit detects a person around the digital photo frame in the second predetermined time period.

3. The digital photo frame of claim 1, wherein the storage unit further stores audio files, the processing unit is further configured to control a media player to play the audio file when the detection unit detects nobody around the digital photo frame in the first predetermined time period.

4. The digital photo frame of claim 3, wherein the processing unit is further configured to control the media player to stop playing the audio file if the detection unit detects a person around the digital photo frame in the second predetermined time period.

5. The digital photo frame of claimed 1, wherein the detection unit is an infrared detection unit.

6. The digital photo frame of claimed 1, wherein the detection unit is a microwave detection unit.

7. A method of automatic powering off a digital photo frame, wherein, the digital photo frame comprises:

a processing unit;

a power management unit;

a detection unit; and

a display unit;

the method comprising the steps of;

sending a first detection signal to the processing unit when the detection unit does not detects a person around the digital photo frame in a first predetermined time period;

powering off the display unit via the power management unit controlled by the processing unit when the processing unit receives the first detection signal;

sending a power-off signal to the processing unit when the detection unit does not detects a person around the digital photo frame in a second predetermined time period;

powering off the digital photo frame via the power management unit controlled by the processing unit when the processing unit receives the power-off signal;

8. The method of claim 7, further comprising the steps of:

sending a second detection signal to the processing unit when the detection unit detects a person around the digital photo frame in a second predetermined time period; and

powering on the display unit via the power management unit controlled by the processing unit when the processing unit receives the second detection signal.

9. The method of claim 8, further comprising the step of:

outputting audio signals via an audio output unit controlled by the processing unit when the processing unit receives the first detection signal.

10. The method of claim 9, further comprising the step of:

stopping outputting the audio signals via the audio output unit controlled by the processing unit when the processing unit receives the second detection signal.