Title:
OPERATION POSITION DETECTION DEVICE AND OPERATION POSITION DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2011/045879
Kind Code:
A1
Abstract:
Provided is an operation position detection device, by which the noise of a reception signal can be reduced, and an operation position can be detected by receiving a stable ultrasonic wave transmitted within a tube.
An operation position detection device (1) is provided with a tube (10) having five holes (11a to 11e) formed on the side surface of the tube, the holes being selectively closable or openable by an operation of an operator; an ultrasonic wave transmitter (20) which is attached to one end of the tube (10) and continuously transmits ultrasonic signals; an ultrasonic wave receiver (21) which is attached to the other end of the tube (10) and receives ultrasonic signals transmitted within the tube; an information processing unit (30) which detects positions of the holes (11a to 11e) to which the operation was directed by identifying a closure pattern of the holes (11) on the basis of the reception signal received by the ultrasonic receiver (21) after a predetermined time or longer has passed from the start of transmission of the ultrasonic signals and the ultrasonic signals transmitting within the tube becomes a steady state.
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Inventors:
MAEDA, Yuki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2010/004640
Publication Date:
April 21, 2011
Filing Date:
July 20, 2010
Export Citation:
Assignee:
Murata Manufacturing Co., Ltd. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
株式会社村田製作所 (〒55 京都府長岡京市東神足１丁目１０番１号 Kyoto, 〒6178555, JP)
株式会社村田製作所 (〒55 京都府長岡京市東神足１丁目１０番１号 Kyoto, 〒6178555, JP)
International Classes:
G06F3/033; G01B17/00; G06F3/02
Attorney, Agent or Firm:
UEDA, Kazuhiro (Kudan Koie Bldg. 7F, 7-13 Kudanminami 3-chome, Chiyoda-k, Tokyo 74, 〒1020074, JP)
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