Communication system using short range radio communication headset
AssigneeKabushiki Kaisha Toshiba
InventorsKatsuyoshi Nagayasu, Shinichi Tanaka, Kohei Momosaki, Yoichi Takebayashi
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Abstract
In a short range radio communication headset, signals transmitted by the short range radio communications are received while direct sounds propagated from an external are detected. Then, a digital signal adaptation processing using either received signals or the direct sounds as reference signals are applied, and a ratio between the received signals and the direct sounds is controlled by correlating the reference signals and another one of the received signals and the direct sounds that are not used as the reference signals and extracting necessary components.
Claims15
A short range radio communication headset, comprising:
- a transmitter configured to transmit or receive signals by short range radio communications;
- an external sound detection microphone configured to detect direct sounds propagated from an external;
- a speech processing unit configured to receive inputs of received signals received by the transceiver and the direct sounds detected by the external sound detection microphone, and selectively control a ratio between the received signals and the direct sounds;
- and
- a speaker configured to output speeches with the ratio controlled by the speech processing unit.
A short range radio communication headset system, comprising:
- a first headset for short range radio communications;
- a second headset for short range radio communications which transmits speeches to the first headset;
- and
- a speech processing device configured to apply a speech processing to the speeches transmitted by the second headset and supply processed signals to the first headset;
- wherein the first headset has a receiver, an external sound detection microphone for detecting direct sounds from an external, and a transmitter for transmitting the direct sounds to the speech processing device at a first frequency;
- the second headset has a transmitter for transmitting the speeches to the speech processing device at a second frequency;
- and
- the speech processing device receives the direct sounds from the first headset and the speeches from the second headset, selectively adjusts a ratio of the direct sounds and the speeches and transmits adjusted signals to the first headset at a third frequency.
A short range radio communication headset, comprising:
- a speaker's microphone configured to detect a speech command of a user;
- an external sound detection microphone configured to detect external sounds of a surrounding;
- a speech processing unit configured to receive inputs of the speech command and the external sounds, correlate the external sounds with the speech command, and extract only components correlated with the speech command;
- and
- a transmitter configured to transmit an output of the speech processing unit to a remote device by a short range radio communication.
A short range radio communication headset, comprising:
- a transmitter capable of radio transmission with respect to surrounding devices;
- a speaker's microphone configured to detect speeches of a user;
- a speech recognition unit configured to recognize the speeches detected by the speaker's microphone;
- and
- a recognition result transmission unit configured to supply a recognition result obtained by the speech recognition unit to the transmitter, such that the recognition result is transmitted from the transmitter.
An acoustic processing method for short range radio communications, comprising:
- receiving signals transmitted by the short range radio communications;
- detecting direct sounds propagated from an external as sound waves;
- applying a digital signal adaptation processing using either received signals or the direct sounds as reference signals;
- controlling a ratio between the received signals and the direct sounds by correlating the reference signals and another one of the received signals and the direct sounds that are not used as the reference signals and extracting necessary components;
- and
- outputting signals with the ratio controlled by the controlling step as speeches.
An acoustic processing method for a short range radio communication headset system, comprising:
- receiving direct sounds from an external detected by a first headset as first received signals through short range radio communications;
- receiving speeches transmitted by a second headset to the first headset as second received signals through short range radio communications;
- applying an adaptation processing using either the first received signals or the second received signals as reference signals;
- controlling a ratio of the first received signals and the second received signals by correlating the reference signals and another one of the first received signals and the second received signals that are not used as the reference signals and extracting necessary components;
- and
- transmitting signals with the ratio controlled by the controlling step to the first headset through the short range radio communications.
Dependencies are inferred from the claim text.