INTELLIGENT DIGITAL PHOTO FRAME

• US 20100271384A1
• Filed: 06/16/2009
• Published: 10/28/2010
• Est. Priority Date: 04/28/2009
• Status: Abandoned Application

• 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: HSIEH, KUAN-HONG, LI, XIAO-GUANG, TSAI, MING-FENG, LAN, CHUNG-JEN
• Application Number:
  US12/485,046
• Publication Number:
  US 20100271384A1
• Time in Patent Office: Days
• US Class Current: 345/589
• CPC Class Codes: G06F 1/3218 of display devices
• CPC Class Codes: G06F 1/3231 Monitoring the presence, absence or movement of users
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A digital photo frame (DPF) includes a power management unit connected to a power source, configured for distributing power from the power source to the DPF; a display panel configured for displaying displayable media; a shaking sensor configured for detecting whether the DPF is being shaken and producing a trigger signal when the DPF is being shaken; a light detector configured for detecting current ambient light level and producing a light signal corresponding to the detected ambient light level; and a processing unit configured for adjusting brightness of the display panel according to the trigger signal and the light signal.

Claims

1. A digital photo frame (DPF) for automatically adjusting brightness, comprising:

a power management unit connected to a power source, configured for distributing power from the power source to the DPF;

a display panel configured for displaying displayable media;

a shaking sensor configured for detecting whether the DPF is being shaken and producing a trigger signal when the DPF is being shaken;

a light detector configured for detecting current ambient light level and producing a light signal corresponding to the detected ambient light level; and

a processing unit configured for adjusting brightness of the display panel according to the trigger signal and the light signal.

2. The DPF of claim 1, wherein the processing unit is configured to control the light detector to work when receiving the trigger signal.

3. The DPF of claim 1, further comprising a storage unit configured for storing a plurality of light level ranges and a plurality of preferred brightness values corresponding to the light level ranges, wherein the processing unit is further configured to convert the light signal to a digital light level value, compare the digital light level value with the light level ranges to determine one light level range that the digital light level value is included in, obtain the preferred brightness value according to the determined light level range, and adjust the brightness of the display panel according to the preferred brightness value.

4. The DPF of claim 1, comprising a storage unit configured for storing a plurality of light level ranges and a plurality of preferred brightness ranges corresponding to the light level ranges, wherein the processing unit is further configured to convert the light signal to a digital light level value, compare the digital light level value with the light level ranges to determine one light level range that the digital light level value is included in, obtain the preferred brightness range according to the determined light level range, and adjust the brightness of the display panel according to one value within the preferred brightness range.

5. The DPF of claim 1, wherein the shaking sensor is a G-sensor.

6. A method of automatically adjusting brightness of a digital photo frame (DPF), the method comprising:

detecting whether the DPF is being shaken and producing a trigger signal when the DPF is being shaken;

detecting current ambient light level and producing a light signal corresponding to the detected ambient light level; and

adjusting brightness of a display panel of the DPF according to the trigger signal and the light signal.

7. The method of claim 6, wherein the step of detecting current ambient light level and producing a light signal further comprises:

controlling a light detector of the DPF to work when receiving the trigger signal.

8. The method of claim 6, further comprising:

supplying a storage unit for storing media for displaying, a plurality of light level ranges and a plurality of preferred brightness values corresponding to the light level ranges;

converting the light signal to a digital light level value;

comparing the digital light level value with the light level ranges to determine one light level range that the digital light level value is included in;

obtaining the preferred brightness value according to the determined light level range; and

adjusting the brightness of the display panel according to the preferred brightness value.

9. The method of claim 6, further comprising:

supplying a storage unit for storing media for displaying, a plurality of light level ranges and a plurality of preferred brightness ranges corresponding to the light level ranges;

converting the light signal to a digital light level value;

comparing the digital light level value with the light level ranges to determine one light level range that the digital light level value is included in;

obtaining the preferred brightness range according to the determined light level range; and

adjusting the brightness of the display panel according to one value within the preferred brightness range.