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US 2003/0223591 A1Published application
Wave signal processing system and method
AssigneeFujitsu Limited
InventorsKentaro Murase, Takuya Noda, Kazuhiro Watanabe
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AssigneeFujitsu Limited
InventorsKentaro Murase, Takuya Noda, Kazuhiro Watanabe
Estimating the term…
The present invention provides wave signal processing systems and methods that estimate a wave source direction and use that information to realize sharp directivity even in the case of a device that is compact or that has limited calculating capacity. A wave signal processing system of the present invention is provided with at least one sensor group made of at least two sensors, determines a difference signal between wave signals detected by any two sensors in at least one of the sensor groups and determines a differential signal of a wave signal detected by at least one sensor, and based on a combination of a sign of the difference signal and a sign of the differential signal and a positional relationship of the sensors, determines the sign of a delay time between the wave signals that are detected by the two sensors and determines the direction of the wave source based on whether the sign of the delay time is positive or negative.
A wave signal processing system including at least one sensor group made of at least two sensors, comprising:
A wave signal processing method for a signal processing device that is provided with at least one sensor group made of at least two sensors, the method comprising:
A computer executable program for realizing a wave signal processing method for a signal processing device that is provided with at least one sensor group made of at least two sensors, the program comprising the processing operations of:
Dependencies are inferred from the claim text.