Electrical appliance, in particular, a ventilator hood

• US 20030163326A1
• Filed: 02/27/2003
• Published: 08/28/2003
• Est. Priority Date: 02/27/2002
• Status: Abandoned Application

• Current Assignee: BSH Bosch und Siemens Hausgerã¤Te GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Bosch und Siemens Hausgerã¤Te GmbH (Robert Bosch GmbH)
• Inventors: Maase, Jens
• Application Number:
  US10/375,545
• Publication Number:
  US 20030163326A1
• Time in Patent Office: Days
• US Class Current: 704/275
• CPC Class Codes: F24C 15/2021 Arrangement or mounting of control or safety systems
• CPC Class Codes: G10L 15/20 Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech G10L21/02 takes precedence
• CPC Class Codes: G10L 21/0208 Noise filtering
• CPC Class Codes: H04R 1/342 for microphones

Abstract

A ventilator hood includes a voice operating unit with a microphone. The microphone is a spatially selective sound pickup.

Claims

1. In an electrical household appliance, a voice-activation unit comprising:

a voice operating unit having a microphone for receiving sound signals, said microphone being a spatially selective sound pickup.

2. The household appliance according to claim 1, wherein said sound pickup is a spatially passive sound pickup.

3. The household appliance according to claim 1, wherein said sound pickup is an active sound pickup with a microphone array.

4. The household appliance according to claim 3, wherein said sound pickup has at least two input surfaces for receiving the sound signals.

5. The household appliance according to claim 4, wherein said at least two input surfaces are disposed at right angles to one another.

6. The household appliance according to claim 5, further comprising an evaluation unit connected to said at least two input surfaces, said evaluation unit combining sound signals picked up by said at least two input surfaces with one another by computation rules.

7. The household appliance according to claim 5, further comprising an evaluation unit connected to said at least two input surfaces, said evaluation unit combining the sound signals picked up by said at least two input surfaces with one another.

8. The household appliance according to claim 1, wherein said sound pickup attenuates the sound signals picked up by said at least two input surfaces in accordance with a preset direction.

9. The household appliance according to claim 1, wherein said sound pickup attenuates the sound signals picked up by said at least two input surfaces.

10. The household appliance according to claim 7, wherein said sound pickup attenuates the sound signals picked up by said at least two input surfaces in accordance with a preset direction.

11. In a ventilator hood, a voice-activation unit comprising:

a voice operating unit having a microphone that is a spatially selective sound pickup.

12. The hood according to claim 11, wherein said sound pickup is a spatially passive sound pickup.

13. The hood according to claim 11, wherein said sound pickup is an active sound pickup with a microphone array.

14. The hood according to claim 13, wherein said sound pickup has at least two input surfaces for receiving the sound signals.

15. The hood according to claim 14, wherein said at least two input surfaces are disposed at right angles to one another.

16. The hood according to claim 15, further comprising an evaluation unit connected to said at least two input surfaces, said evaluation unit combining sound signals picked up by said at least two input surfaces with one another by computation rules.

17. The hood according to claim 15, further comprising an evaluation unit connected to said at least two input surfaces, said evaluation unit combining the sound signals picked up by said at least two input surfaces with one another.

18. The hood according to claim 11, wherein said sound pickup attenuates the sound signals picked up by said at least two input surfaces in accordance with a preset direction.

19. The hood according to claim 11, wherein said sound pickup attenuates the sound signals picked up by said at least two input surfaces.

20. The hood according to claim 17, wherein said sound pickup attenuates the sound signals picked up by said at least two input surfaces in accordance with a preset direction.

21. In a ventilator hood, a voice-activation unit comprising:

a voice operating unit having a microphone that is a spatially selective sound pickup having at least two input surfaces for receiving the sound signals, said at least two input surfaces being disposed at right angles to one another, said sound pickup attenuating the sound signals picked up by said at least two input surfaces; and

an evaluation unit connected to said at least two input surfaces, said evaluation unit combining the sound signals picked up by said at least two input surfaces with one another.

22. The hood according to claim 21, wherein said sound pickup is a spatially passive sound pickup.

23. The hood according to claim 21, wherein said sound pickup is an active sound pickup with a microphone array.

24. The hood according to claim 21, wherein said evaluation unit combines sound signals picked up by said at least two input surfaces with one another by computation rules.

25. The hood according to claim 21, wherein said sound pickup attenuates the sound signals picked up by said at least two input surfaces in accordance with a preset direction.