Electronic device and digital display device

• US 9,280,201 B2
• Filed: 03/18/2013
• Issued: 03/08/2016
• Est. Priority Date: 07/09/2012
• Status: Active Grant

• Current Assignee: Sigmastar Technology Limited
• Original Assignee: MStar Semiconductor Incorporated (MediaTek, Inc.)
• Inventors: Lin, Jung-Tai, Wang, Shih-Chang
• Primary Examiner(s): Lao, Lun-Yi
• Assistant Examiner(s): Hegarty, Kelly B
• Application Number:
  US13/845,733
• Publication Number:
  US 20140009383A1
• Time in Patent Office: 1,086 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 1/1605 Multimedia displays, e.g. with integrated or attached speakers, cameras, microphones
• CPC Class Codes: G06F 1/3231 Monitoring the presence, absence or movement of users
• CPC Class Codes: G06F 3/005 Input arrangements through a video camera
• CPC Class Codes: G06F 3/0304 Detection arrangements using opto-electronic means constructional details of pointing devices not related to the detection arrangement using opto-electronic means G06F3/033; optical digitisers G06F3/042
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

An electronic device switching over a turning on, a turning off and a standby mode is disclosed. The electronic device comprises a sensing unit and a host processing unit. The sensing unit senses a frame image and generates a sensing signal in the standby mode. The host processing unit is electrically connected to the sensing unit for receiving the image signal and performing a host function according to the sensing signal.

Claims

1. An electronic device, comprising:

a sensing unit for sensing a frame image and generating a first sensing signal at a first time and a second sensing signal sensed at a second time, wherein the first time is earlier than the second time;

an image reception interface for receiving the first sensing signal and the second sensing signal;

a movement detecting engine for comparing the first sensing signal with the second sensing signal to determine whether there are differences between the first sensing signal and the second sensing signal;

an image processing engine outputting an encoding signal according to a comparison result outputted from the movement detecting engine, indicating that there are differences between the first sensing signal and the second sensing signal;

a video encoding unit for generating an image signal according to the encoding signal;

a picture encoding unit for generating image information according to the encoding signal;

a scaling engine for generating an adjusted encoding signal according to the encoding signal; and

a bus transmission unit for combining the image signal, the image information and the adjusted encoding signal as an image signal;

a host processing unit electrically connected to the sensing unit for performing a host function according to the image signal,

wherein the image processing engine outputs the encoding signal to the video encoding unit, the picture encoding unit and the scaling engine.

2. The electronic device according to claim 1, wherein the host function is a video recording function, a booting function or a transmission function.

3. The electronic device according to claim 1, wherein the host processing unit includes a display screen, and the host processing unit outputs frame information according to the image signal to the display screen to display the frame information.

4. The electronic device according to claim 1, wherein the host processing unit includes a storage unit, and the host processing unit outputs frame information according to the image signal to the storage unit to store the frame information.

5. The electronic device according to claim 1, wherein the host processing unit includes a network transmission unit, and the host processing unit outputs frame information according to the image signal to the network transmission unit to transmit the frame information to another electronic device at a remote end.

6. The electronic device according to claim 1, wherein the host processing unit includes a network transmission unit, and when the electronic device is operated in a security mode, the host processing unit outputs a notification signal according to the image signal to the network transmission unit, the network transmission unit transmit a network signal according to the notification signal to notify a user that the electronic device detects a wobbling of an object.

7. The electronic device according to claim 1, wherein when the electronic device is operated in a security mode, an Internet protocol (IP) of the electronic device is fixed IP.

8. A digital display device, comprising:

a sensing unit for sensing a frame image and generating a first sensing signal at a first time and a second sensing signal sensed at a second time, wherein the first time is earlier than the second time; and

an image reception interface for receiving the first sensing signal and the second sensing signal;

a movement detecting engine for comparing the first sensing signal with the second sensing signal to determine whether there are differences between the first sensing signal and the second sensing signal;

an image processing engine outputting an encoding signal according to a comparison result outputted from the movement detecting engine, indicating that there are differences between the first sensing signal and the second sensing signal;

a video encoding unit for generating an image signal according to the encoding signal;

a picture encoding unit for generating image information according to the encoding signal;

a scaling engine for generating an adjusted encoding signal according to the encoding signal; and

a bus transmission unit for combining the image signal, the image information and the adjusted encoding signal as an image signal;

a host processing unit electrically connected to the sensing unit for performing a host function according to the image signal,

wherein the image processing engine outputs the encoding signal to the video encoding unit, the picture encoding unit and the scaling engine.

9. The digital display device according to claim 8, wherein the host function is a video recording function, a booting function or a transmission function.

10. The electronic device according to claim 8, wherein the host processing unit includes a display screen, and the host processing unit outputs frame information according to the image signal to the display screen to display the frame information.

11. The electronic device according to claim 8, wherein the host processing unit includes a storage unit, and the host processing unit outputs frame information according to the image signal to the storage unit to store the frame information.

12. The electronic device according to claim 8, wherein the host processing unit includes a network transmission unit, and the host processing unit outputs frame information according to the image signal to the network transmission unit to transmit the frame information to another electronic device at a remote end.

13. The electronic device according to claim 8, wherein the host processing unit includes a network transmission unit, and when the electronic device is operated in a security mode, the host processing unit outputs a notification signal according to the image signal to the network transmission unit, and the network transmission unit transmit a network signal according to the notification signal to notify a user that the electronic device detects a wobbling of an object.

14. The electronic device according to claim 8, wherein when the electronic device is operated in a security mode, an Internet protocol (IP) of the electronic device is fixed IP.