Operating state based energy-saving display device

• US 6,801,794 B2
• Filed: 12/20/2000
• Issued: 10/05/2004
• Est. Priority Date: 12/23/1999
• Status: Expired due to Term

• Current Assignee: Snaptrack Incorporated (Qualcomm, Inc.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Bauer, Harald
• Primary Examiner(s): Tran, Pablo N.
• Application Number:
  US09/741,973
• Publication Number:
  US 20010024967A1
• Time in Patent Office: 1,385 Days
• Field of Search: 455/343, 455/31.3, 455/574, 455/566, 455/525, 455/90, 455/127, 455/571, 455/572, 455/573, 455/557, 379/413, 345/51, 345/52, 345/102, 345/211, 345/212
• US Class Current: 455/574
• CPC Class Codes: H04M 2250/12 including a sensor for measuring a physical value, e.g. temperature or motion
• CPC Class Codes: H04W 52/0254 detecting a user operation or a tactile contact or a motion of the device
• CPC Class Codes: H04W 52/027 by controlling a display operation or backlight unit
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

For a terminal for mobile communication which includes a display device it is proposed to save energy by arranging a control device so as to disconnect at least a part of the display device in dependence on a relevant operating state.

Claims

1. A mobile communication terminal, comprising:

a photosensitive sensor operable to sense ambient light;

a display device including a first section and a second section; and

a control device,

wherein said control device is operable to exclusively deactivate said first section or concurrently deactivate said first second and said second section as a function of a status of said photosensitive sensor and said second section displays at least one of a name and a logo in response to a deactivation of the first section by said control device.

2. The mobile communication terminal of claim 1,

wherein said control device is operable to exclusively deactivate said first section as a function of said photosensitive sensor sensing a presence of ambient light.

3. The mobile communication terminal of claim 1,

wherein said control device is operable to exclusively deactivate said first section or concurrently deactivate said first section and said second section as a function of said photosensitive sensor sensing an absence of ambient light.

4. A mobile communication terminal, comprising:

a motion sensor operable to sense movement of the mobile communication terminal;

a display device including a first section and a second section; and

a control device operable to deactivate said first section as a function of said motion sensor sensing the mobile communication terminal resting in an immobile state and said second section displays at least one of a name and a logo in response to an deactivation of the first section by said control device.

5. The mobile communication terminal of claim 4,

wherein said control device is operable to deactivate that at least part of said display device in response to said motion sensor sensing the mobile communication terminal resting in an immobile state for a predetermined period of time.

6. A mobile communication terminal, comprising:

a photosensitive sensor operable to sense ambient light;

a motion sensor operable to sense movement of the mobile communication terminal;

a display device having a first section and a second section; and

a control device operable to deactivate at least a part of said display device as a function of a first status of said photosensitive sensor and a second status of said motion sensor wherein said first section is deactivated in response to said motion sensor sensing the mobile communication terminal resting in an immobile state for a predetermined period of time and said second section displays at least one of a name and a logo in response to a deactivation of the first section.

7. The mobile communication terminal of claim 6,

wherein said control device is operable to exclusively deactivate said first section as a function of said photosensitive sensor sensing a presence of ambient light.

8. The mobile communication terminal of claim 6,

wherein said control device is operable to exclusively deactivate said first section or concurrently deactivate said first section and said second section as a function of said photosensitive sensor sensing an absence of ambient light.

9. The mobile communication terminal of claim 6,

wherein said control device is operable to exclusively deactivate said first section as a function of said motion sensor sensing the mobile communication terminal resting in an immobile state.