The control unit and the method of operating the control unit.

Claims

OCR07AP1. The control unit comprises an input interface configured to accept voice commands from the user or enforce tangible switches; a display device configured to show messages to the user; and a controller configured so that the display has a lower brightness than the first message or hides the second message, in addition to the first message which prompts the user to speak. Upon receiving a speech command using a pre-determined word or a pre-determined enforcement command, it switches to the second enforcement mode, which accepts voice commands from the user, while in the first enforcement mode it stops accepting voice commands from the user.2.The control unit comprises an input interface configured to accept speech commands from the user, an output device configured to display messages to the user, and a controller configured so that the output device displays a first message prompting the user to speak and a second message in addition to the first message in a different manner. Upon receiving a predetermined command, it switches to the second enforcement mode, which accepts speech commands from the user, while in the first enforcement mode, it stops accepting speech commands from the user.

3. The control unit under claim 2, where the controller is further configured to switch to the second enforcement mode upon receiving a predetermined command.

4. The control unit under claim 3, where in the second enforcement mode, the controller is configured to enforce the operation in response to a speech command extracted from the user. 5.

6. A control unit under claim 2 where the controller is configured so that the display device shows a second message as an object that is superimposed on another message.

7. A control unit under claim 2 where the characteristics of the display device for the second message include a reduction in brightness and being hidden. 8.The method of forcing the operation of the control unit, which includes an input interface configured to accept speech commands from the user and a display device configured to show messages to the user, involves the display device showing a first message that prompts the user to speak and a second message in addition to the first message in a different manner. Upon receiving a predetermined command, it switches to a second forcing mode that accepts speech commands from the user, whereas in the first forcing mode, it stops accepting speech commands from the user.

9. The method under claim 8, which further incorporates the switching to the second forcing mode upon receiving a predetermined command.

10. The method under claim 9, which incorporates operation in response to a user command extracted from speech in the second forcing mode.

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