超音波プローブ装置及びその制御方法 - Olympus Endo Technology America Inc.

Title:

超音波プローブ装置及びその制御方法

Document Type and Number:

Japanese Patent JP5734620

Kind Code:

B2

Abstract:

An ultrasonic probe device includes capacitive micromachined ultrasonic transducers, a band control unit and a bias voltage change unit. Each of the transducers belongs to one of groups, each of the groups includes at least one of the transducers. The band control unit determines the bias voltage value which varies for each of the groups, and a timing to apply the direct-current bias voltage having the bias voltage value so that all frequencies included in an operating frequency are transmitted and/or received by the ultrasonic probe device during an operation period. The bias voltage change unit changes the direct-current bias voltage to be applied to the capacitive micromachined ultrasonic transducers in accordance with the bias voltage value and the timing.

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Inventors:

Murakami Mineyuki

Application Number:

JP2010240786A

Publication Date:

June 17, 2015

Filing Date:

October 27, 2010

Export Citation:

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Assignee:

Olympus Endo Technology America Inc.

International Classes:

H04R19/00; A61B8/00; H04R3/00

Domestic Patent References:

JP2006122344A
JP2010232971A
JP2000060850A
JP2005349003A
JP8229036A

Foreign References:

WO2009075280A1
WO2005120360A1
WO2005120355A1

Attorney, Agent or Firm:

Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen

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