JPH10258253A - Vibration generating method and apparatus therefor - Google Patents
Vibration generating method and apparatus thereforInfo
- Publication number
- JPH10258253A JPH10258253A JP9065217A JP6521797A JPH10258253A JP H10258253 A JPH10258253 A JP H10258253A JP 9065217 A JP9065217 A JP 9065217A JP 6521797 A JP6521797 A JP 6521797A JP H10258253 A JPH10258253 A JP H10258253A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- frequency
- plate
- resonance frequency
- elastic body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
Landscapes
- Audible And Visible Signals (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、携帯が可能なぺー
ジャーや小型情報伝達装置において使用されている通報
用の振動発生装置に関し、より詳しくは、呼出音を鳴ら
して通報したり、呼出音に代わって体感振動を発生して
情報を伝達する振動発生装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration generator for notification used in a portable pager or a small information transmission device, and more particularly to a ringing tone for making a notification or ringing tone. The present invention relates to a vibration generator that transmits bodily sensation vibration and transmits information instead of vibration.
【０００２】[0002]
【従来の技術】元来、ぺージャーでは内部受信機が無線
呼び出し信号を受信すると、呼び出し音を発生して携帯
者に電話の呼び出しがあったことを知らせていたが、音
による呼び出しは前記の携帯者の周囲の人に迷惑をかけ
たり、連絡の必要性を他人に知られてしまうという問題
点がある。2. Description of the Related Art Originally, in the pager, when an internal receiver received a radio call signal, a ringing tone was generated to inform a carrier that a telephone call had been made. There is a problem that a person around the carrier is annoyed or that the necessity of contact is known to others.
【０００３】その対策として、現在では、呼び出し音で
知らせる以外に、体感振動を発生させて携帯者に知らせ
る機能が備えられており、発音と振動の何れかの呼出信
号を携帯者が選択できるようになっている。[0003] As a countermeasure, a function is now provided to generate a bodily sensation and notify the wearer in addition to notifying the ringer with a ringing tone. It has become.
【０００４】図１０に示すように、ぺージャーのケーシ
ング１の内部には、スピーカ２と、このスピーカ２とは
別にぺージャーモータ３が内蔵されている。無線呼び出
し信号を受信すると身体に感じる程度の振動を発生させ
るぺージャーモータ３は、図１１に示すように円筒形の
コアレスモータ４の回転軸５に、タングステン等の高比
重の合金製の分銅６を取り付けて構成されている。ＩＣ
1 ，ＩＣ2 は半導体集積回路である。As shown in FIG. 10, a speaker 2 and a pager motor 3 separately from the speaker 2 are built in a casing 1 of the pager. As shown in FIG. 11, a pager motor 3 that generates vibrations that the body feels when it receives a radio call signal is attached to a rotating shaft 5 of a cylindrical coreless motor 4 by a weight 6 made of a high specific gravity alloy such as tungsten. It is configured with attached. IC
1 and IC 2 are semiconductor integrated circuits.
【０００５】分銅６は半円状または扇板形状に形成され
ており、コアレスモータ４に通電されると、偏芯して取
り付けられた分銅６が回転し、ぺージャーのケーシング
１に２次的に振動を発生させる。ぺージャーのケーシン
グ１にはスピーカ２の実装位置に対応して放音口７が穿
設されている。The weight 6 is formed in a semicircular or fan shape. When the coreless motor 4 is energized, the eccentrically mounted weight 6 rotates, and the weight 6 is secondarily attached to the pager casing 1. Generate vibration. The casing 1 of the pager is provided with a sound output port 7 corresponding to the mounting position of the speaker 2.
【０００６】[0006]
【発明が解決しようとする課題】このような従来の構成
では、ぺージャー等の携帯用機器の小型化の傾向に対し
て、以下のような課題を有する。However, such a conventional configuration has the following problems with respect to the trend of miniaturizing portable devices such as pagers.
【０００７】（１） 円筒形のコアレスモータに偏芯分
銅を取り付けた構成では、回転軸に大きな負荷がかかる
ため、これ以上の小型化や長期使用の要請に十分応えき
れない。また、この構成では偏芯分銅が回転軸から抜け
やすいという課題があり、品質管理に多大な時間を費や
して組み立てを行う必要がある。(1) In a configuration in which an eccentric weight is attached to a cylindrical coreless motor, a large load is applied to the rotating shaft, and it is not possible to sufficiently meet the demand for further downsizing and long-term use. Further, in this configuration, there is a problem that the eccentric weight is easily detached from the rotating shaft, and it is necessary to spend a large amount of time on quality control for assembly.
【０００８】（２） 従来の構成では、呼び出し音を発
生するスピーカ２とは別にぺージャーモータ３を必要と
し、部品点数の削減の障害となっているのが現状であ
る。このような課題を解決するものとして、既に、本発
明者らは特願平７−２２８１３８号において呼び出し音
による呼び出しと、体感振動による呼び出しとをひとつ
の振動発生装置で可能とした振動発生装置を提案してい
る。(2) In the conventional configuration, the pager motor 3 is required separately from the speaker 2 that generates a ringing tone, which is an obstacle to the reduction in the number of parts. As a solution to such a problem, the present inventors have already disclosed in Japanese Patent Application No. 7-228138 a vibration generating device that enables calling by a ringing sound and calling by bodily sensation with one vibration generating device. is suggesting.
【０００９】しかし、系の共振を利用するという特徴が
ある振動発生装置のため、以下のような課題がある。 （１）ページャー、携帯電話などの携帯機器に組み込ん
だ際、機器の固定状態もしくは使用状態の違いによっ
て、振動系の共振周波数が振動発生装置固有の共振周波
数と異なる。具体的には、胸ポケットに入れたり、腰に
つけたり、手で握ったりして使用状態が異なる際に、最
大の振動量が得られる共振周波数が異なるため、特定の
周波数で振動を発生できない。However, since the vibration generating apparatus is characterized by utilizing the resonance of the system, there are the following problems. (1) When incorporated in a portable device such as a pager or a mobile phone, the resonance frequency of the vibration system differs from the resonance frequency inherent to the vibration generator due to a difference in the fixed state or use state of the device. Specifically, when the device is put in a breast pocket, put on the waist, or held by hand, and used in different states, the resonance frequency at which the maximum amount of vibration is obtained is different, so that vibration cannot be generated at a specific frequency.
【００１０】別の表現をすれば、ある特定の共振周波数
で駆動するように発振回路を合わせると、使用状態の違
いによって、振動が身体に対して感じやすかったり、感
じにくかったりする。つまり、使用状態の違いによって
振動の大きさが変化する。In other words, when the oscillation circuit is adjusted to be driven at a specific resonance frequency, the vibration is easily or hardly perceived by the body depending on the use condition. That is, the magnitude of the vibration changes depending on the difference in the use state.
【００１１】（２）ページャー、携帯電話などの携帯機
器に組み込んだ際、振動発生装置の携帯機器への取り付
け位置によって、振動系の共振周波数が振動発生装置固
有の共振周波数と異なる。具体的には、例えば携帯機器
の中央に取り付けるか、端に取り付けるかで、最大の振
動量が得られる共振周波数が異なる。(2) When incorporated into a portable device such as a pager or a mobile phone, the resonance frequency of the vibration system differs from the resonance frequency inherent in the vibration device depending on the position at which the vibration generator is mounted on the portable device. Specifically, for example, the resonance frequency at which the maximum vibration amount is obtained differs depending on whether the portable device is attached to the center or the end of the portable device.
【００１２】本発明ではこの課題を解決できる振動発生
方法ならびに装置を提供することを目的とする。An object of the present invention is to provide a vibration generating method and apparatus which can solve this problem.
【００１３】[0013]
【課題を解決するための手段】本発明の振動発生方法
は、携帯機器に組み込んだ振動発生装置を動作させて振
動によって通報するに際し、単一周波数で振動発生装置
を駆動するのではなく、周波数が掃引する信号で駆動す
ることを特徴とする。According to the vibration generating method of the present invention, when a vibration generating device incorporated in a portable device is operated and a notification is made by vibration, the vibration generating device is not driven at a single frequency, but is driven by a frequency. Is driven by a sweeping signal.
【００１４】この構成によると、振動発生装置から発生
する振動周波数が携帯機器の共振周波数に一致したタイ
ミングに大きな体感振動が得られる。According to this configuration, a large bodily sensation can be obtained at a timing when the vibration frequency generated from the vibration generator matches the resonance frequency of the portable device.
【００１５】[0015]
【発明の実施の形態】請求項１記載の振動発生方法は、
携帯機器に組み込んだ振動発生装置を動作させて振動に
よって通報するに際し、振動発生装置の振動周波数を掃
引させて携帯機器のケーシングを振動させることを特徴
とする。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The vibration generating method according to the first aspect of the present invention comprises:
When operating a vibration generator incorporated in a portable device to notify by vibration, the vibration frequency of the vibration generator is swept to vibrate a casing of the portable device.
【００１６】請求項２記載の振動発生方法は、請求項１
において、振動発生装置の共振周波数の前後の周波数に
わたって掃引させることを特徴とする。請求項３記載の
振動発生装置は、筐体内部に、一対の板状弾性体を相対
向するように配置し、一方の板状弾性体には磁石を有す
る磁界発生体を取り付けて第１の振動系を構成し、他方
の板状弾性体には前記の磁界発生体の発生磁界と磁気結
合したコイルを設けて第２の振動系を構成し、前記コイ
ルを周波数の異なる駆動信号で駆動して第１の振動系ま
たは第２の振動系を選択的に共振させるように構成する
とともに、駆動信号を発生する発振回路を、出力信号が
時間経過に伴って変化する繰り返す掃引信号を出力する
ように構成したことを特徴とする。According to a second aspect of the present invention, there is provided the vibration generating method according to the first aspect.
Wherein the sweep is performed over a frequency around the resonance frequency of the vibration generator. According to a third aspect of the present invention, in the vibration generating device, a pair of plate-like elastic members are arranged inside the housing so as to face each other, and a magnetic field generator having a magnet is attached to one of the plate-like elastic members. A vibration system is provided, and a coil that is magnetically coupled to the magnetic field generated by the magnetic field generator is provided on the other plate-like elastic body to form a second vibration system, and the coil is driven by drive signals having different frequencies. And the first vibration system or the second vibration system is selectively resonated, and the oscillation circuit that generates the drive signal is configured to output a repeated sweep signal whose output signal changes with time. It is characterized by having comprised in.
【００１７】請求項４記載の振動発生装置は、請求項３
において、第１の振動系の板状弾性体は、中央部および
外周部が第２の振動系の板状弾性体に向け突出するヨー
クの外周部を浮かした状態で筐体に取り付けられ、この
ヨークの外周部の内側に磁石を配置して構成し、第２の
振動系のコイルは、前記磁石の内周側で前記ヨークの中
央部の外周側に位置するように配設して構成したことを
特徴とする。According to a fourth aspect of the present invention, there is provided the vibration generating apparatus according to the third aspect.
In the above, the plate-like elastic body of the first vibration system is attached to the housing in a state where the center and the outer periphery of the plate-like elastic body protrude toward the plate-like elastic body of the second vibration system with the outer periphery thereof floating. The magnet is arranged inside the outer periphery of the yoke, and the coil of the second vibration system is arranged so as to be located on the inner periphery of the magnet and on the outer periphery of the center of the yoke. It is characterized by the following.
【００１８】請求項５記載の振動発生装置は、請求項３
または請求項４において、駆動信号を発生する発振回路
を、第１の振動系もしくは第２の振動系の共振周波数の
０．９５倍〜１．２倍の間で掃引することを特徴とす
る。According to a fifth aspect of the present invention, there is provided the vibration generating apparatus according to the third aspect.
Alternatively, in claim 4, the oscillation circuit for generating the drive signal is swept between 0.95 and 1.2 times the resonance frequency of the first vibration system or the second vibration system.
【００１９】請求項６記載の振動発生装置は、請求項３
〜請求項５の何れかにおいて、一方の板状弾性体の共振
周波数が２５０Ｈｚ以下であり、他方の板状弾性体の共
振周波数が６００Ｈｚ以上であることを特徴とする。[0019] The vibration generating device according to the sixth aspect is the third aspect.
The resonance frequency of one plate-like elastic body is 250 Hz or less, and the resonance frequency of the other plate-like elastic body is 600 Hz or more.
【００２０】請求項７記載の携帯機器は、請求項３〜請
求項６の何れかの振動発生装置を内蔵したことを特徴と
する。以下、本発明の振動発生方法を具体的な実施の形
態を示す図１から図９に基づいて説明する。According to a seventh aspect of the present invention, there is provided a portable device including the vibration generating device according to any one of the third to sixth aspects. Hereinafter, a vibration generating method according to the present invention will be described with reference to FIGS. 1 to 9 showing specific embodiments.
【００２１】図１と図２は本発明の振動発生装置を示
し、図３はこの振動発生装置の駆動回路を示す。筒状の
枠体８は上部円筒体８ａと板状の底部カバー８ｂとで構
成されている。上部円筒体８ａの外周面には呼び出し音
の共鳴効果用の共鳴孔８ｃが形成されている。FIGS. 1 and 2 show a vibration generator of the present invention, and FIG. 3 shows a drive circuit of the vibration generator. The cylindrical frame 8 includes an upper cylindrical body 8a and a plate-like bottom cover 8b. A resonance hole 8c for a ringing sound resonance effect is formed on the outer peripheral surface of the upper cylindrical body 8a.
【００２２】第１の板状弾性体９は、平面からみて渦巻
型形状で、断面からみて中央部９ａが盛り上がったハッ
ト状をしており、中央部９ａの中心に取付穴９ｂが形成
されている。この第１の板状弾性体９の大径部は上部円
筒体８ａと板状の底部カバー８ｂとで挟持されている。The first plate-like elastic body 9 has a spiral shape when viewed from a plane, and has a hat shape with a central portion 9a raised when viewed from a cross section. A mounting hole 9b is formed at the center of the central portion 9a. I have. The large-diameter portion of the first plate-like elastic body 9 is sandwiched between an upper cylindrical body 8a and a plate-like bottom cover 8b.
【００２３】この底部カバー８ｂを設けることにより、
第１の板状弾性体９を支持できると共に第１の板状弾性
体９が他の障害物に接触し、その振動が妨害されるのを
防ぐことができる。By providing the bottom cover 8b,
The first plate-shaped elastic body 9 can be supported, and the first plate-shaped elastic body 9 can be prevented from contacting another obstacle to prevent its vibration.
【００２４】第１の板状弾性体９には、ヨーク１０と環
状の磁石１１とからなる磁界発生体１２が取り付けられ
ている。具体的には、図２に示すように第１の板状弾性
体９の上面中央に設けられたヨーク１０の形状は、外周
部１０ａと、中央から上方に突出するセンターポール１
０ｂと有している。ヨーク１０の外周部１０ａの内周に
は磁石１１が取り付けられている。A magnetic field generator 12 composed of a yoke 10 and an annular magnet 11 is attached to the first plate-like elastic body 9. More specifically, as shown in FIG. 2, the shape of a yoke 10 provided at the center of the upper surface of the first plate-like elastic body 9 has an outer peripheral portion 10a and a center pole 1 projecting upward from the center.
0b. A magnet 11 is attached to the inner periphery of the outer periphery 10a of the yoke 10.
【００２５】上部円筒体８ａの上部開口を閉塞する第２
の板状弾性体１３には円筒型のコイル１４が取り付けら
れており、コイル１４はセンターポール１０ｂの外周部
と磁石１１の内周部との間に形成されている磁界の中に
配置されている。The second for closing the upper opening of the upper cylindrical body 8a
A cylindrical coil 14 is attached to the plate-like elastic body 13 of the above. The coil 14 is disposed in a magnetic field formed between the outer peripheral portion of the center pole 10b and the inner peripheral portion of the magnet 11. I have.
【００２６】第１の板状弾性体９と磁界発生体１２とで
第１の振動系を構成し、第２の板状弾性体１３とコイル
１４で第２の振動系を構成している。ここでは第１の振
動系の共振周波数を５０〜１５０Ｈｚに設定している。
また、中心部が盛り上がった、断面からみてハット状を
しており、中心部が上下することによって、磁界発生体
１２が振動する構成になっている。The first plate-like elastic body 9 and the magnetic field generator 12 constitute a first vibration system, and the second plate-like elastic body 13 and the coil 14 constitute a second vibration system. Here, the resonance frequency of the first vibration system is set to 50 to 150 Hz.
In addition, the cross section has a hat shape as viewed from the cross section with a raised central portion, and the magnetic field generator 12 vibrates when the central portion moves up and down.
【００２７】第２の振動系の共振周波数を２〜３ｋＨｚ
に設定している。底部カバー８ｂは鋼板などの金属板で
構成され、その形状を渦巻型形状とし、中心部の凹部で
ヨーク１０の底面の凸部を挿入して位置決めできる構成
にして、ヨーク１０の底面の凸部が第１の板状弾性体９
の中心凹部と嵌合でき、生産性向上とコスト低減を図る
ことができる。The resonance frequency of the second vibration system is set to 2-3 kHz.
Is set to The bottom cover 8b is made of a metal plate such as a steel plate, has a spiral shape, and has a concave portion at the center so that the convex portion on the bottom surface of the yoke 10 can be inserted and positioned. Is the first plate-like elastic body 9
Can be fitted to the central concave portion, thereby improving productivity and reducing costs.
【００２８】磁石１１のＮ極側はヨーク１０の外周部１
０ａの内面に接し、Ｓ極側はセンターポール１０ｂの外
周側に向け一定間隔を保持して設けられている。ヨーク
１０は純鉄やパーマロイ等の軟磁材料からなり、磁石１
１は、例えば希土類系磁石材料からなるものを用いると
好適である。The N pole side of the magnet 11 is the outer peripheral portion 1 of the yoke 10.
The center pole 0b is in contact with the inner surface of the center pole 10b, and the south pole side is provided at a constant interval toward the outer periphery of the center pole 10b. The yoke 10 is made of a soft magnetic material such as pure iron or permalloy.
1 is preferably made of, for example, a rare earth magnet material.
【００２９】このように、磁界発生体１２を円環状に構
成することにより、磁石をヨークの中心に配置する構成
と比較して、漏れ磁束が少なく、磁気効率の点で有利で
ある。また磁界発生体１２およびコイル１４を円環状に
することのより、第１の振動系での質量のアンバランス
による不安定な振動を防止でき、さらに生産性の向上が
図ることができる。As described above, by forming the magnetic field generator 12 in an annular shape, compared with a configuration in which the magnet is arranged at the center of the yoke, there is less leakage magnetic flux, which is advantageous in terms of magnetic efficiency. In addition, since the magnetic field generator 12 and the coil 14 are formed in an annular shape, unstable vibration due to mass imbalance in the first vibration system can be prevented, and the productivity can be further improved.
【００３０】なお、コイル１４は、銅線の表面に樹脂を
焼き付けたエナメル線を用いて円筒形状で構成してい
る。図３はコイル１４に印加する駆動信号の周波数を切
り替え可能に与える構成の一例を示している。The coil 14 is formed in a cylindrical shape using an enameled wire obtained by baking a resin on the surface of a copper wire. FIG. 3 shows an example of a configuration in which the frequency of the drive signal applied to the coil 14 is switchably provided.
【００３１】１５は直流電源、１６は発振回路で、トラ
ンジスタ１７とマイクロコンピュータ１８などで構成さ
れている。ＣＰＵ１８からトランジスタ１７には、通電
と通電停止を繰り返すパルス信号が与えられ、このパル
ス信号の周波数と同周波数の電流がコイル１４に流れ
る。このようにコイル１４に通電することにより磁石１
１を備えたヨーク１０と、コイル１４が電磁力により振
動し、結果的に第１の振動系と第２の振動系が振動す
る。Reference numeral 15 denotes a DC power supply, and reference numeral 16 denotes an oscillation circuit, which comprises a transistor 17, a microcomputer 18, and the like. A pulse signal that repeats energization and energization stop is applied to the transistor 17 from the CPU 18, and a current having the same frequency as the frequency of the pulse signal flows through the coil 14. By energizing the coil 14 in this manner, the magnet 1
1 and the coil 14 vibrate due to the electromagnetic force, and as a result, the first vibration system and the second vibration system vibrate.
【００３２】ＣＰＵ１８は前記パルス信号の周波数を、
第１の振動系の共振させる第１の周波数と、第２の振動
系を共振させる第２の周波数のいずれをも選択できるよ
うに構成されている。The CPU 18 calculates the frequency of the pulse signal
It is configured to be able to select either a first frequency at which the first vibration system resonates or a second frequency at which the second vibration system resonates.
【００３３】さらに、パルス信号の周波数を一定の時間
間隔で掃引している。具体的には、ある周波数幅でパル
ス信号の変化を行うことができる。ＣＰＵ１８が第１の
周波数のパルス信号をトランジスタ１７に与えることに
より、振動発生装置を例えば第１の振動系の共振周波数
に合わせて７０Ｈｚで振動させると、第１の板状弾性体
９を介して装置自体が前記共振周波数に同期して共振
し、体感振動を発生する。これにより、無音で他人に迷
惑のかからない呼び出しを行うことが可能である。Further, the frequency of the pulse signal is swept at regular time intervals. Specifically, the pulse signal can be changed at a certain frequency width. When the CPU 18 gives a pulse signal of the first frequency to the transistor 17 to cause the vibration generator to vibrate at, for example, 70 Hz in accordance with the resonance frequency of the first vibration system, the CPU 18 passes through the first plate-like elastic body 9. The device itself resonates in synchronization with the resonance frequency to generate bodily sensation vibration. This makes it possible to make a call that is silent and does not bother others.
【００３４】また、ＣＰＵ１８が第２の周波数のパルス
信号をトランジスタ１７に与えることにより、振動発生
装置を例えば第２の振動系の共振周波数に合わせて２．
７ｋＨｚで振動させると、装置自体が前記共振周波数と
同期して共振し、呼び出し音を発生し、スピーカとして
作用を営む。Further, the CPU 18 supplies a pulse signal of the second frequency to the transistor 17 so that the vibration generator can be adjusted to, for example, the resonance frequency of the second vibration system.
When vibrated at 7 kHz, the device itself resonates in synchronization with the resonance frequency, generates a ringing tone, and acts as a speaker.
【００３５】そして第１の振動系と第２の振動系の共振
周波数の設定を変えることにより、身体に感じる振動呼
び出しの周波数を２５０Ｈｚ以下とし、呼び出し音の周
波数を６００Ｈｚ以上にすると好適である。周波数の設
定を６００Ｈｚ以上にしたのは、ＩＳＯ２２６（１９６
１）の等ランドネス曲線に基づき、６００Ｈｚ以上で振
動すると低い音圧レベルで人間の耳で聴くことが可能で
あるからである。By changing the setting of the resonance frequencies of the first vibration system and the second vibration system, it is preferable that the frequency of the vibrating call felt by the body be 250 Hz or less and the frequency of the ringing sound be 600 Hz or more. The reason why the frequency is set to 600 Hz or more is that ISO 226 (196)
This is because, based on the equal landness curve of 1), if the vibration is made at 600 Hz or more, the sound can be heard by a human ear at a low sound pressure level.
【００３６】つまり、低い振動エネルギーで人間の耳が
聴くことができる音を発生できる。さらに２５０Ｈｚ以
下にしたのは同じく等ラウドネス曲線に基づき、２５０
Ｈｚ以下の振動は人間の耳には聴こえず、機械的振動の
み身体に伝えることができるからである。That is, a sound that can be heard by the human ear can be generated with low vibration energy. Further, the frequency of 250 Hz or less is also based on the equal loudness curve,
This is because vibrations below Hz cannot be heard by human ears, and only mechanical vibrations can be transmitted to the body.
【００３７】このように１つの振動発生装置で２種類の
呼び出し信号を発生させることができるため、前記した
従来例と比較して、より小型で軽量、かつ振動の大きな
振動発生装置が可能となる。As described above, two types of calling signals can be generated by one vibration generator, so that a smaller, lighter, and larger vibration generator can be provided as compared with the conventional example. .
【００３８】このような振動発生装置は、ページャーや
携帯電話などの携帯機器に組み込んで用いることができ
る。そして、例えばページャーの携帯者が切り替えスイ
ッチで、呼び出し音と身体に感じる振動のいずれか一方
を選択できるように構成することができる。Such a vibration generator can be used by being incorporated in a portable device such as a pager or a mobile phone. Then, for example, it is possible to configure so that a person who carries the pager can select one of the ringing sound and the vibration felt by the body with a changeover switch.
【００３９】また、ＣＰＵ１８からの第１の周波数のパ
ルス信号と第２の周波数のパルス信号とを一定時間毎に
交互に発生させて、身体に感じる振動の両方が交互に生
じるように構成することができる。The pulse signal of the first frequency and the pulse signal of the second frequency from the CPU 18 are alternately generated at regular intervals so that both vibrations felt by the body are alternately generated. Can be.
【００４０】（実施例１）（実施例１）では本発明の振
動発生装置２０を図４に示すようにページャー内部の中
央に取り付けた場合の、駆動周波数の違いによって発生
する体感振動の大きさの変化を測定した。振動発生装置
２０の全体の大きさは直径φ１７ｍｍ，高さ６ｍｍで、
振動する磁界発生体１２の重さは４．２ｇである。(Embodiment 1) In Embodiment 1, when the vibration generator 20 of the present invention is mounted in the center of the inside of a pager as shown in FIG. Was measured. The entire size of the vibration generator 20 is 17 mm in diameter and 6 mm in height.
The weight of the vibrating magnetic field generator 12 is 4.2 g.
【００４１】本発明の振動発生装置の第１の振動系の共
振周波数が６６Ｈｚのときに図４のような構成で、図５
の（ａ）に示すように荷重計１９を介して完全に固定し
た状態と、図５の（ｂ）に示すように吊り下げてフリー
な状態で加速度計２１で測定した状態での振動レベル、
いわゆる加振力と共振周波数の関係を測定した。When the resonance frequency of the first vibration system of the vibration generator of the present invention is 66 Hz, the configuration shown in FIG.
5 (a), the vibration level in the state of being completely fixed via the load meter 19, and the vibration level in the state of being suspended and measured by the accelerometer 21 in a free state as shown in FIG. 5 (b).
The relationship between the so-called excitation force and the resonance frequency was measured.
【００４２】入力は１．５Ｖである。図６はこの２つの
状態での各周波数毎での加振力を表したものである。こ
の図のよると、特定の周波数のみのパルス信号の電流で
は使用状態や固定状態の違いによって、共振周波数が異
なるため、振動レベルに差があり、場合によっては着信
が通報できないことがあり得る。本発明品では、この場
合、共振周波数６６Ｈｚの０．９５〜１．２倍の約６３
〜７９Ｈｚで１〜３秒程度の短い時間でパルス信号電流
の周波数をスイープさせて振動させるので、固定状態で
は、駆動信号周波数の掃引が６６Ｈｚ付近になったとき
にピークの大きな体感振動が発生している。吊り下げ状
態では、駆動信号周波数の掃引が６９Ｈｚ付近になった
ときにピークの大きな体感振動が発生している。The input is 1.5V. FIG. 6 shows the excitation force at each frequency in these two states. According to this figure, the current of a pulse signal having only a specific frequency has a different resonance frequency due to a difference in a use state or a fixed state, so that there is a difference in a vibration level, and in some cases, an incoming call may not be reported. In this case, in the case of the present invention, the resonance frequency is about 63, which is 0.95 to 1.2 times the resonance frequency of 66 Hz.
Since the frequency of the pulse signal current is swept and vibrated in a short time of about 1 to 3 seconds at about 79 Hz, in a fixed state, when the sweep of the drive signal frequency is around 66 Hz, a bodily sensation with a large peak occurs. ing. In the suspended state, the sensational vibration having a large peak occurs when the sweep of the drive signal frequency is around 69 Hz.
【００４３】このように何れの状態においても、振動発
生装置を内蔵したぺージャーのケーシング１に大きな振
動を発生させることができる。 （実施例２）（実施例１）の場合に加えて、ページャー
本体を手で持った場合を加えて振動レベルを比較する。
ここでは実際に手で持った状態に近い状態として、図５
の（ｃ）に示すように多孔質の弾性体（スポンジ）２２
とアルミプレート２３と荷重計１９を介して取り付けた
モデルを使用して（実施例１）と同じ構成のページャー
本体の加振力を測定した。As described above, in any state, large vibration can be generated in the casing 1 of the pager in which the vibration generating device is built. (Example 2) In addition to the case of (Example 1), the vibration level is compared by adding the case where the pager body is held by hand.
Here, it is assumed that the state is close to the state actually held by hand, and FIG.
As shown in (c), a porous elastic body (sponge) 22
The excitation force of the pager body having the same configuration as that of (Example 1) was measured using a model attached via the aluminum plate 23 and the load cell 19.
【００４４】図７は各周波数と加振力との関係を表した
ものである。完全に固定した状態と、つり下げてフリー
な状態の間に手で持った状態を想定した弾性固定状態で
の共振周波数はある。また減衰のため、共振周波数での
加振力のレベルは下がっている。本発明品では、この場
合、共振周波数６６Ｈｚの０．９５〜１．２倍の約６３
〜７９Ｈｚで１〜３秒程度の短い時間でパルス信号電流
の周波数をスイープさせることで、振動発生装置を内蔵
した携帯機器のケーシング１に大きな振動を発生させる
ことができる。FIG. 7 shows the relationship between each frequency and the excitation force. There is a resonance frequency in an elastically fixed state assuming a state in which the hand is held between a completely fixed state and a suspended and free state. Also, the level of the excitation force at the resonance frequency is reduced due to the attenuation. In this case, in the case of the present invention, the resonance frequency is about 63, which is 0.95 to 1.2 times the resonance frequency of 66 Hz.
By sweeping the frequency of the pulse signal current at a frequency of up to 79 Hz in a short time of about 1 to 3 seconds, a large vibration can be generated in the casing 1 of a portable device having a built-in vibration generator.
【００４５】（実施例３）図８は本発明の本発明品の振
動発生装置をページャー内部の端部に取り付けた状態を
示している。振動発生装置の第１の振動系の共振周波数
は６６Ｈｚである。（実施例１）でのページャー内部の
中央部に取り付けた場合（図４）と比較する。両方の場
合とも、吊り下げた状態でページャーの重心で加速度セ
ンサを取り付け、加振力を測定した。図９はこの２つの
状態での各周波数毎での加振力の測定結果を示してい
る。(Embodiment 3) FIG. 8 shows a state in which the vibration generator of the present invention of the present invention is attached to an end inside a pager. The resonance frequency of the first vibration system of the vibration generator is 66 Hz. A comparison will be made with the case of mounting it to the center of the inside of the pager in (Example 1) (FIG. 4). In both cases, the acceleration sensor was attached at the center of gravity of the pager in a suspended state, and the excitation force was measured. FIG. 9 shows the measurement results of the excitation force at each frequency in these two states.
【００４６】この図のよると、特定の周波数のみのパル
ス信号の電流ではページャー本体への取り付け位置や取
り付け状態の違いによって、共振周波数が異なるため、
振動レベルに差があり、場合によっては着信が知らせな
いことのあり得る。本発明品では、この場合、共振周波
数６６Ｈｚの０．９５〜１．２倍の約６３〜７９Ｈｚで
１〜３秒程度の短い時間でパルス信号電流の周波数をス
イープさせて、振動させた。According to this figure, since the current of a pulse signal having only a specific frequency has a different resonance frequency due to a difference in a mounting position and a mounting state on the pager body,
There is a difference in vibration level, and in some cases, an incoming call may not be notified. In this case, in the product of the present invention, the frequency of the pulse signal current was swept and vibrated at about 63 to 79 Hz, which is 0.95 to 1.2 times the resonance frequency of 66 Hz, for a short time of about 1 to 3 seconds.
【００４７】図４に示すようにケーシングの中央に振動
発生装置２０を取り付けた場合には、駆動信号周波数の
掃引が６９Ｈｚになったときにピークの大きな体感振動
が発生している。When the vibration generator 20 is mounted at the center of the casing as shown in FIG. 4, when the drive signal frequency sweeps to 69 Hz, a large sensational vibration with a large peak is generated.
【００４８】図８に示すようにケーシング１の端に振動
発生装置２０を取り付けた場合には、駆動信号周波数の
掃引が７６Ｈｚ付近になったときにピークの大きな体感
振動が発生している。When the vibration generator 20 is attached to the end of the casing 1 as shown in FIG. 8, when the sweep of the drive signal frequency is about 76 Hz, a large peak of the bodily sensation vibration is generated.
【００４９】このように何れの位置に振動発生装置を取
り付けた場合でも大きな体感振動が得られることが分か
る。As described above, it can be seen that a large bodily sensation can be obtained regardless of the position where the vibration generator is attached.
【００５０】[0050]
【発明の効果】本発明の振動発生方法によると、携帯機
器に組み込んだ振動発生装置を動作させて振動によって
通報するに際し、振動発生装置の振動周波数を掃引させ
るので、駆動信号周波数の掃引が携帯機器のケーシング
の共振周波数の付近になったときにピークの大きな体感
振動が発生し、確実に通報することができる。According to the vibration generating method of the present invention, the vibration frequency of the vibration generating device is swept when the vibration generating device incorporated in the portable device is operated to notify by vibration, so that the driving signal frequency can be swept. When the resonance frequency is near the resonance frequency of the casing of the device, a large peak of the bodily sensation vibration is generated, and the notification can be reliably made.
【００５１】具体的には、振動発生装置の共振周波数の
前後の周波数にわたって掃引させる。本発明の振動発生
装置は、筐体内部に、一対の板状弾性体を相対向するよ
うに配置し、一方の板状弾性体には磁石を有する磁界発
生体を取り付けて第１の振動系を構成し、他方の板状弾
性体には前記の磁界発生体の発生磁界と磁気結合したコ
イルを設けて第２の振動系を構成し、前記コイルを周波
数の異なる駆動信号で駆動して第１の振動系または第２
の振動系を選択的に共振させるように構成するととも
に、駆動信号を発生する発振回路を、出力信号が時間経
過に伴って変化する繰り返す掃引信号を出力するように
構成したため、上記の振動発生方法を実現できる。More specifically, the vibration is swept over a frequency around the resonance frequency of the vibration generator. According to the vibration generating device of the present invention, a pair of plate-like elastic bodies are arranged inside a housing so as to face each other, and a magnetic field generator having a magnet is attached to one of the plate-like elastic bodies to form a first vibration system. The other plate-like elastic body is provided with a coil that is magnetically coupled to the magnetic field generated by the magnetic field generator to form a second vibration system, and the coil is driven by driving signals having different frequencies. 1st vibration system or 2nd
And the oscillation circuit for generating the drive signal is configured to output a repetitive sweep signal whose output signal changes with time. Can be realized.
【００５２】好ましくは、第１の振動系の板状弾性体
は、中央部および外周部が第２の振動系の板状弾性体に
向け突出するヨークの外周部を浮かした状態で筐体に取
り付けられ、このヨークの外周部の内側に磁石を配置し
て構成し、第２の振動系のコイルは、前記磁石の内周側
で前記ヨークの中央部の外周側に位置するように配設し
て構成する。Preferably, the plate-like elastic body of the first vibrating system is mounted on the housing in a state in which a central portion and an outer peripheral portion of the yoke projecting toward the plate-like elastic body of the second vibrating system are floated on the outer peripheral portion. The magnet is arranged inside the outer peripheral portion of the yoke, and the coil of the second vibration system is disposed so as to be located on the inner peripheral side of the magnet and on the outer peripheral side of the central portion of the yoke. And configure.
【００５３】また、駆動信号を発生する発振回路を、第
１の振動系もしくは第２の振動系の共振周波数の０．９
５倍〜１．２倍の間で掃引することが好ましい。また、
一方の板状弾性体の共振周波数が２５０Ｈｚ以下であ
り、他方の板状弾性体の共振周波数が６００Ｈｚ以上で
あることが好ましい。Further, the oscillation circuit for generating the drive signal is set to a resonance frequency of 0.9% of the first oscillation system or the second oscillation system.
It is preferable to sweep between 5 times and 1.2 times. Also,
Preferably, the resonance frequency of one plate-like elastic body is 250 Hz or less, and the resonance frequency of the other plate-like elastic body is 600 Hz or more.
【図１】本発明の振動発生方法の具体的な実施の形態の
振動発生装置の断面図FIG. 1 is a cross-sectional view of a vibration generator according to a specific embodiment of the vibration generation method of the present invention.
【図２】同実施の形態の振動発生装置の分解斜視図FIG. 2 is an exploded perspective view of the vibration generator according to the embodiment.
【図３】同実施の形態のコイルを駆動する回路の構成図FIG. 3 is a configuration diagram of a circuit for driving the coil according to the embodiment;
【図４】同実施の形態の振動発生装置をページャーの中
央に組み込んだ分解斜視図FIG. 4 is an exploded perspective view in which the vibration generator according to the embodiment is incorporated in the center of a pager.
【図５】完全固定状態，吊り下げ状態，弾性支持状態の
ページャーの振動測定状態の説明図FIG. 5 is an explanatory diagram of a vibration measurement state of a pager in a completely fixed state, a suspended state, and an elastic support state.
【図６】振動発生装置をページャーの中央に組み込んだ
ページャーの２つの支持状態の振動測定特性図FIG. 6 is a diagram showing vibration measurement characteristics of two supported states of a pager in which the vibration generator is incorporated in the center of the pager.
【図７】振動発生装置をページャーの中央に組み込んだ
ページャーの３つの支持状態の振動測定特性図FIG. 7 is a diagram showing vibration measurement characteristics of three supported states of the pager in which the vibration generator is incorporated in the center of the pager.
【図８】振動発生装置をページャーの端に組み込んだ分
解斜視図FIG. 8 is an exploded perspective view in which a vibration generating device is incorporated in an end of a pager.
【図９】振動発生装置を中央と端に組み込んだそれぞれ
のページャーを吊り下げて駆動した場合の駆動周波数に
対する加振力の変化の測定図FIG. 9 is a measurement diagram of a change in an exciting force with respect to a driving frequency when each of the pagers incorporating the vibration generating device at the center and at the end is suspended and driven.
【図１０】従来のページャーの分解斜視図FIG. 10 is an exploded perspective view of a conventional pager.
【図１１】従来のページャー用振動発生装置の斜視図FIG. 11 is a perspective view of a conventional vibration generator for a pager.
１ 携帯機器のケーシング ８ 枠体 ９ 第１の板状弾性体 １０ ヨーク １１ 磁石 １２ 磁界発生体 １３ 第２の板状弾性体 １４ コイル １６ 発振回路 １８ マイクロコンピュータ ２０ 振動発生装置 DESCRIPTION OF SYMBOLS 1 Casing of portable device 8 Frame 9 First plate-like elastic body 10 Yoke 11 Magnet 12 Magnetic field generator 13 Second plate-like elastic body 14 Coil 16 Oscillation circuit 18 Microcomputer 20 Vibration generator
フロントページの続き (72)発明者 横山 敏信 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 犬飼 真一郎 大阪府門真市大字門真1006番地 松下電器 産業株式会社内Continuing on the front page (72) Inventor Toshinobu Yokoyama 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.
Claims (7)
作させて振動によって通報するに際し、振動発生装置の
振動周波数を掃引させて携帯機器のケーシングを振動さ
せる振動発生方法。1. A vibration generating method for causing a vibration generator of a portable device to vibrate by sweeping a vibration frequency of the vibration generating device when a vibration generating device incorporated in a portable device is operated and a notification is made by vibration.
数にわたって掃引させる請求項１記載の振動発生方法。2. The vibration generating method according to claim 1, wherein the sweep is performed over a frequency around the resonance frequency of the vibration generating device.
るように配置し、 一方の板状弾性体には磁石を有する磁界発生体を取り付
けて第１の振動系を構成し、 他方の板状弾性体には前記の磁界発生体の発生磁界と磁
気結合したコイルを設けて第２の振動系を構成し、 前記コイルを周波数の異なる駆動信号で駆動して第１の
振動系または第２の振動系を選択的に共振させるように
構成するとともに、 駆動信号を発生する発振回路を、出力信号が時間経過に
伴って変化する繰り返す掃引信号を出力するように構成
した振動発生装置。3. A first vibration system in which a pair of plate-like elastic bodies are arranged inside a housing so as to face each other, and a magnetic field generator having a magnet is attached to one of the plate-like elastic bodies. The other plate-like elastic body is provided with a coil that is magnetically coupled with the magnetic field generated by the magnetic field generator to form a second vibration system. The coil is driven by driving signals having different frequencies to perform the first vibration. Vibration generating means for selectively resonating a system or a second vibration system, and an oscillating circuit for generating a drive signal, wherein the oscillation circuit is configured to output a repetitive sweep signal in which an output signal changes with time. apparatus.
び外周部が第２の振動系の板状弾性体に向け突出するヨ
ークの外周部を浮かした状態で筐体に取り付けられ、こ
のヨークの外周部の内側に磁石を配置して構成し、 第２の振動系のコイルは、前記磁石の内周側で前記ヨー
クの中央部の外周側に位置するように配設して構成した
請求項３記載の振動発生装置。4. A plate-like elastic body of a first vibration system is attached to a housing with a central portion and an outer peripheral portion of a yoke projecting toward a plate-like elastic body of a second vibration system, with an outer peripheral portion thereof floating. The magnet is arranged inside the outer peripheral portion of the yoke, and the coil of the second vibration system is disposed so as to be located on the inner peripheral side of the magnet and on the outer peripheral side of the central portion of the yoke. The vibration generator according to claim 3, wherein
動系もしくは第２の振動系の共振周波数の０．９５倍〜
１．２倍の間で掃引する請求項３または請求項４記載の
振動発生装置。5. An oscillating circuit for generating a drive signal, wherein the oscillating circuit has a resonance frequency of 0.95 times the resonance frequency of the first vibration system or the second vibration system.
The vibration generator according to claim 3 or 4, wherein the vibration is swept between 1.2 times.
ｚ以下であり、他方の板状弾性体の共振周波数が６００
Ｈｚ以上である請求項３〜請求項５の何れかに記載の振
動発生装置。6. The resonance frequency of one plate-like elastic body is 250H.
z or less, and the resonance frequency of the other plate-like elastic body is 600
The vibration generator according to any one of claims 3 to 5, wherein the frequency is not less than Hz.
置を内蔵した携帯機器。7. A portable device having a built-in vibration generator according to claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6521797A JP3969780B2 (en) | 1997-03-19 | 1997-03-19 | Vibration generation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6521797A JP3969780B2 (en) | 1997-03-19 | 1997-03-19 | Vibration generation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10258253A true JPH10258253A (en) | 1998-09-29 |
| JP3969780B2 JP3969780B2 (en) | 2007-09-05 |
Family
ID=13280535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6521797A Expired - Lifetime JP3969780B2 (en) | 1997-03-19 | 1997-03-19 | Vibration generation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3969780B2 (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1053796A1 (en) * | 1998-01-08 | 2000-11-22 | Sanyo Electric Co., Ltd. | Alerting device and radio communication device having the alerting device |
| US6323758B1 (en) | 1998-11-20 | 2001-11-27 | Nec Corporation | Vibration generating unit |
| JP2002119912A (en) * | 2000-10-12 | 2002-04-23 | Nec Saitama Ltd | Compound acoustic actuator drive circuit and portable information terminal |
| JP2002336779A (en) * | 2001-05-16 | 2002-11-26 | Shicoh Eng Co Ltd | Electromagnetic actuator |
| JP2006128401A (en) * | 2004-10-28 | 2006-05-18 | Alps Electric Co Ltd | Coil core material, manufacturing method therefor, and vibration generator provided therewith |
| JP2007090349A (en) * | 2006-12-27 | 2007-04-12 | Matsushita Electric Ind Co Ltd | Vibration linear actuator |
| JP2007111619A (en) * | 2005-10-19 | 2007-05-10 | Alps Electric Co Ltd | Vibration generation device |
| KR100793682B1 (en) | 2007-01-16 | 2008-01-10 | 김정훈 | Subminiature linear vibrator |
| US7355305B2 (en) * | 2003-12-08 | 2008-04-08 | Shen-Etsu Chemical Co., Ltd. | Small-size direct-acting actuator |
| WO2008060060A1 (en) * | 2006-11-15 | 2008-05-22 | Jung-Hoon Kim | Subminiature linear vibrator |
| WO2008133245A1 (en) * | 2007-04-24 | 2008-11-06 | Sanyo Electric Co., Ltd. | Vibrating device and cellular phone including vibrating device |
| WO2010029714A1 (en) * | 2008-09-12 | 2010-03-18 | 三洋電機株式会社 | Vibration motor and portable terminal device using same |
| KR101085461B1 (en) * | 2010-01-18 | 2011-11-21 | 한국과학기술원 | Apparatus for small sized actuator using different elastic spring |
| JP2013233537A (en) * | 2012-04-10 | 2013-11-21 | Hosiden Corp | Vibrator |
| WO2016035707A1 (en) * | 2014-09-01 | 2016-03-10 | 株式会社村田製作所 | Piezoelectric vibration unit-driving device and -driving method |
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| JPH08238901A (en) * | 1995-03-07 | 1996-09-17 | Seiko Instr Inc | Signal annunciator by vibration |
| JPH0970571A (en) * | 1995-09-05 | 1997-03-18 | Matsushita Electric Ind Co Ltd | Vibration generator system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08155391A (en) * | 1994-12-09 | 1996-06-18 | Kokusai Electric Co Ltd | Vibration generator |
| JPH08238901A (en) * | 1995-03-07 | 1996-09-17 | Seiko Instr Inc | Signal annunciator by vibration |
| JPH0970571A (en) * | 1995-09-05 | 1997-03-18 | Matsushita Electric Ind Co Ltd | Vibration generator system |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1053796A4 (en) * | 1998-01-08 | 2004-08-04 | Sanyo Electric Co | Alerting device and radio communication device having the alerting device |
| US7936251B1 (en) | 1998-01-08 | 2011-05-03 | Kyocera Corporation | Alerting device and radio communication device having the alerting device |
| EP1053796A1 (en) * | 1998-01-08 | 2000-11-22 | Sanyo Electric Co., Ltd. | Alerting device and radio communication device having the alerting device |
| US6323758B1 (en) | 1998-11-20 | 2001-11-27 | Nec Corporation | Vibration generating unit |
| JP2002119912A (en) * | 2000-10-12 | 2002-04-23 | Nec Saitama Ltd | Compound acoustic actuator drive circuit and portable information terminal |
| GB2372139A (en) * | 2000-10-12 | 2002-08-14 | Nec Corp | Compound acoustic actuator device and portable information terminal |
| GB2372139B (en) * | 2000-10-12 | 2003-05-14 | Nec Corp | Compound acoustic actuator drive circuit and portable information terminal |
| US6617966B2 (en) | 2000-10-12 | 2003-09-09 | Nec Corporation | Compound acoustic actuator drive circuit and portable information terminal |
| US6686833B2 (en) | 2000-10-12 | 2004-02-03 | Nec Corporation | Compound acoustic actuator drive circuit and portable information terminal |
| JP2002336779A (en) * | 2001-05-16 | 2002-11-26 | Shicoh Eng Co Ltd | Electromagnetic actuator |
| US7355305B2 (en) * | 2003-12-08 | 2008-04-08 | Shen-Etsu Chemical Co., Ltd. | Small-size direct-acting actuator |
| JP4587775B2 (en) * | 2004-10-28 | 2010-11-24 | アルプス電気株式会社 | Vibration generator |
| JP2006128401A (en) * | 2004-10-28 | 2006-05-18 | Alps Electric Co Ltd | Coil core material, manufacturing method therefor, and vibration generator provided therewith |
| JP2007111619A (en) * | 2005-10-19 | 2007-05-10 | Alps Electric Co Ltd | Vibration generation device |
| WO2008060060A1 (en) * | 2006-11-15 | 2008-05-22 | Jung-Hoon Kim | Subminiature linear vibrator |
| JP2010509065A (en) * | 2006-11-15 | 2010-03-25 | キム，ジョン−フン | Ultra-small linear vibration device |
| JP2007090349A (en) * | 2006-12-27 | 2007-04-12 | Matsushita Electric Ind Co Ltd | Vibration linear actuator |
| KR100793682B1 (en) | 2007-01-16 | 2008-01-10 | 김정훈 | Subminiature linear vibrator |
| WO2008133245A1 (en) * | 2007-04-24 | 2008-11-06 | Sanyo Electric Co., Ltd. | Vibrating device and cellular phone including vibrating device |
| WO2010029714A1 (en) * | 2008-09-12 | 2010-03-18 | 三洋電機株式会社 | Vibration motor and portable terminal device using same |
| KR101085461B1 (en) * | 2010-01-18 | 2011-11-21 | 한국과학기술원 | Apparatus for small sized actuator using different elastic spring |
| JP2013233537A (en) * | 2012-04-10 | 2013-11-21 | Hosiden Corp | Vibrator |
| WO2016035707A1 (en) * | 2014-09-01 | 2016-03-10 | 株式会社村田製作所 | Piezoelectric vibration unit-driving device and -driving method |
| JPWO2016035707A1 (en) * | 2014-09-01 | 2017-05-25 | 株式会社村田製作所 | Drive apparatus and drive method for piezoelectric vibration device |
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