Energy-saving circuit based on control of a display device of a terminal for mobile communication in dependence on the operating state

• US 20010024967A1
• Filed: 12/20/2000
• Published: 09/27/2001
• Est. Priority Date: 12/23/1999
• Status: Active Grant

• Current Assignee: Snaptrack Incorporated (Qualcomm, Inc.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Bauer, Harald
• Granted Patent: US 6,801,794 B2
• Time in Patent Office: Days
• US Class Current: 455/574
• CPC Class Codes: H04M 2250/12 including a sensor for measuring a physical value, e.g. temperature or motion telephones including GPS signal receivers H04M2250/10
• 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 terminal for mobile communication which includes a display device, characterized in that a control device (6) is arranged to disconnect at least a part of the display device (1) in dependence on a relevant operating state.

2. A terminal for mobile communication as claimed in

claim 1

, characterized in that at least one sensor element (7) is connected to the control device (6) and that the control device (6) is arranged to evaluate the state of said sensor element (7) in relation to an operating state to be determined.

3. A terminal for mobile communication as claimed in

claim 2

, characterized in that the sensor element (7) is a photosensitive sensor.

4. A terminal for mobile communication as claimed in

claim 2

, characterized in that the sensor element (8) is a motion-sensitive sensor.

5. A terminal for mobile communication as claimed in

claim 1

,

2

, 3 or 4, characterized in that in an operating state only a part of the display device in which the name or the logo of a mobile radio operator is displayed is still activated.