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US 7,254,537 B2Granted
Speech input device
AssigneeFujitsu Limited
InventorsTakeshi Otani, Yasushi Yamazaki
Life of this patent
Estimating the term…
Abstract
A speech input device is provided with a microphone which inputs speech, a key entry detector which detects an operation of a key section which serves as a man-machine interface, and a noise eliminator which eliminates a component of an operation sound from the speech that is input into the microphone within a period in which the key entry detector detects the operation.
Claims19
A speech input device comprising:
- a speech input unit which inputs speech;
- a first memory unit which accumulates and stores information on the speech that is input into the speech input unit;
- a detection unit which detects an operation of a man-machine interface and outputs information for an operation time which corresponds to a start of the operation and an end of the operation;
- a noise eliminator which reads the information stored in the first memory unit and the information output from the detection unit and eliminates a component of an operation sound of the man-machine interface from the speech that is input into the speech input unit within the operation time;
- and
- a second memory unit which accumulates and stores information on the speech that is output from the noise eliminator,
- wherein the noise eliminator eliminates the component of the operation sound of the man-machine interface from the speech that is input into the speech input unit by conducting waveform interpolation.
4 more elements
A speech input device comprising:
- a speech input unit which inputs speech;
- a first memory unit which accumulates and stores information on the speech that is input into the speech input unit;
- a control unit which outputs a control signal for controlling respective sections based on an operation signal indicating that a man-machine interface is operated;
- a detection unit which detects an operation of the man-machine interface based on the control signal and outputs information for an operation time which corresponds to a start of the operation and an end of the operation;
- a noise eliminator which reads the information stored in the first memory unit and the information output from the detection unit and eliminates a component of an operation sound of the man-machine interface from the speech that is input into the speech input unit within the operation time;
- and
- a second memory unit which accumulates and stores information on the speech that is output from the noise eliminator,
- wherein the noise eliminator eliminates the component of the operation sound of the man-machine interface from the speech that is input into the speech input unit by conducting waveform interpolation.
5 more elements
A speech input method comprising steps of:
- inputting speech by a speech input unit;
- accumulating and storing information on the speech that is input by the speech input unit in a first memory unit;
- detecting an operation of a man-machine interface and outputting information for an operation time which corresponds to a start of the operation and an end of the operation;
- eliminating a component of an operation sound of the man-machine interface from the speech that is input in the speech inputting step within the operation time by reading the information stored in the first memory and the information output from the detecting;
- and
- accumulating and storing information on the speech that is output after the eliminating in a second memory unit,
- wherein said noise eliminating operation is performed by conducting waveform interpolation.
4 more elements
A computer-readable recording medium that stores a computer program that causes a computer to execute:
- inputting speech by a speech input unit;
- accumulating and storing information on the speech that is input by the speech input unit in a first memory unit;
- detecting an operation of a man-machine interface and outputting information for an operation time which corresponds to a start of the operation and an end of the operation;
- eliminating a component of an operation sound of the man-machine interface from the speech that is input into the speech input unit within the operation time;
- and
- accumulating and storing information on the speech that is output after the eliminating in a second memory unit,
- wherein said noise eliminating operation is performed by conducting waveform interpolation.
4 more elements
A speech input device comprising:
- a speech input unit which inputs a speech signal;
- a first memory unit which accumulates and stores information on the speech signal that is input into the speech input unit;
- a detection unit which detects an operation of a man-machine interface and outputs information for an operation time which corresponds to a start of the operation and an end of the operation;
- a suppression processing unit which reads the information stored in the first memory unit and the information output from the detection unit and suppresses the amplitude of the waveform of the speech signal that is input into the speech input unit within the operation time;
- and
- a second memory unit which accumulates and stores information on the speech signal that is output from the suppression processing unit.
3 more elements
A speech input method comprising steps of:
- inputting a speech signal by a speech input unit;
- accumulating and storing information on the speech signal that is input by the speech input unit in a first memory unit;
- detecting an operation of a man-machine interface and outputting information for an operation time which corresponds to a start of the operation and an end of the operation;
- suppressing the amplitude of the waveform of the speech signal that is input in the speech inputting step within the operation time by reading the information stored in the first memory and the information output from the detecting;
- and
- accumulating and storing information on the speech signal that is output after the suppressing in a second memory unit.
3 more elements
A computer-readable recording medium that stores a computer program that causes a computer to execute:
- inputting a speech signal by a speech input unit;
- accumulating and storing information on the speech signal that is input by the speech input unit in a first memory unit;
- detecting an operation of a man-machine interface and outputting information for an operation time which corresponds to a start of the operation and an end of the operation;
- suppressing the amplitude of the waveform of the speech signal that is input into the speech input unit within the operation time by reading the information stored in the first memory and the information output from the detecting;
- and
- accumulating and storing information on the speech signal that is output after the suppressing in a second memory unit.
3 more elements
A speech input device comprising:
- a first memory unit which accumulates and stores information on speech that is input into the speech input device;
- a detection unit which detects an operation of a man-machine interface and outputs information for an operation time which corresponds to a start of the operation and an end of the operation;
- a noise eliminator which reads the information stored in the first memory unit and the information output from the detection unit and eliminates a component of an operation sound of the man-machine interface from the speech that is input into the speech input device within the operation time;
- and
- a second memory unit which accumulates and stores information on the speech that is output from the noise eliminator.
2 more elements
Dependencies are inferred from the claim text.