JP2002342033A - Non-contact type user input device - Google Patents

Non-contact type user input device

Info

Publication number
JP2002342033A
JP2002342033A JP2001151499A JP2001151499A JP2002342033A JP 2002342033 A JP2002342033 A JP 2002342033A JP 2001151499 A JP2001151499 A JP 2001151499A JP 2001151499 A JP2001151499 A JP 2001151499A JP 2002342033 A JP2002342033 A JP 2002342033A
Authority
JP
Japan
Prior art keywords
electrode
user input
electrodes
capacitor
transmission
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.)
Granted
Application number
JP2001151499A
Other languages
Japanese (ja)
Other versions
JP3800984B2 (en
JP2002342033A5 (en
Inventor
Jiyunichi Rekimoto
純一 暦本
Original Assignee
Sony Corp
ソニー株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp, ソニー株式会社 filed Critical Sony Corp
Priority to JP2001151499A priority Critical patent/JP3800984B2/en
Priority claimed from EP02771738A external-priority patent/EP1391807A4/en
Publication of JP2002342033A5 publication Critical patent/JP2002342033A5/ja
Publication of JP2002342033A publication Critical patent/JP2002342033A/en
Application granted granted Critical
Publication of JP3800984B2 publication Critical patent/JP3800984B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To recognize the information of two or more points and the shape of an approaching object. SOLUTION: A non-contact type user input device is provided with a plurality of linear transmission electrodes, a transmitter supplying an AC current for transmission to the respective transmission electrodes, a plurality of linear reception electrodes arranged so as not to be in contact with the respective transmission electrodes and a receiver receiving the AC current flowing through the reception electrodes. A capacitor is formed at each intersection of the transmission electrode and the reception electrode, a parallel capacitor is formed corresponding to the approach of the fingertip of a user and the capacitance of the capacitor changes corresponding to the approaching degree of the fingertip. Recognition is performed by utilizing the change of the AC current passing through the capacitor between the electrodes.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明は、コンピュータに対
してオブジェクトの操作やコマンドなどの入力を行うた
めのユーザ入力装置に係り、特に、コンピュータに対し
てオブジェクトの操作やコマンドなどをユーザの指先を
用いて直接入力するユーザ入力装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a user input device for inputting an operation or command of an object to a computer, and more particularly to an operation or command of an object to a computer at a fingertip of a user. The present invention relates to a user input device for directly inputting using.
【0002】更に詳しくは、コンピュータに対してオブ
ジェクトの操作やコマンドなどの入力を非接触形式で行
うユーザ入力装置に係り、特に、2点以上の情報や接近
する物体の形状や物体までの距離情報などを認識するこ
とができる非接触型ユーザ入力装置に関する。
More specifically, the present invention relates to a user input device for inputting an operation of an object, a command, or the like to a computer in a non-contact manner. The present invention relates to a non-contact type user input device capable of recognizing a user.
【0003】[0003]
【従来の技術】昨今の技術革新に伴い、ワークステーシ
ョン(WS)やパーソナル・コンピュータ(PC)と呼
ばれる、比較的小型且つ低価格で、高付加価値化・高機
能化された汎用タイプのコンピュータ・システムが開発
・市販され、大学その他の研究機関や企業その他のオフ
ィス、さらには一般家庭内の日常生活にも深く浸透して
いる。
2. Description of the Related Art Along with the recent technological innovation, a general-purpose computer, called a workstation (WS) or a personal computer (PC), which is relatively small and inexpensive and has high added value and high functionality. The system has been developed and marketed, and has deeply penetrated the daily life of universities and other research institutions, corporations and other offices, and even ordinary households.
【0004】コンピュータ・システムは、一般に、ユー
ザ入力コマンドに応答して駆動し、処理結果をディスプ
レイ・スクリーン上に表示することによって、「インタ
ラクティブ」、すなわち対話的な処理環境を提供してい
る。最近の傾向として、DOS(Disk Operating Syste
m)シェル画面を代表とする旧来のキーボードを介した
キャラクタ・ベースのユーザ入力環境すなわち「CUI
(Character User Interface)」から、グラフィック・
ベースのユーザ入力を実現した「GUI(Graphical Us
er Interface)」への移行が挙げられる。GUI環境下
では、コンピュータ・システムがシミュレートされたデ
スクトップと無数のアイコンがディスプレイ・スクリー
ンに用意される。
Computer systems typically provide an "interactive" or interactive processing environment by driving in response to user input commands and displaying processing results on a display screen. Recently, DOS (Disk Operating System)
m) A character-based user input environment via a conventional keyboard represented by a shell screen, ie, “CUI
(Character User Interface) ”
GUI (Graphical Us
er Interface) ”. In a GUI environment, a desktop with a simulated computer system and countless icons are provided on a display screen.
【0005】GUIが提供されたデスクトップ上では、
ファイル等のコンピュータ・システム上で取り扱われる
全ての資源オブジェクトはアイコンとして表現される。
ユーザは、ディスプレイ・スクリーン上のプログラム、
データ、フォルダ、デバイスなどを象徴するアイコンに
対してマウスなどを用いて画面上の表示オブジェクトに
対して直接操作を印加する(例えば、クリックやドラッ
グ・アンド・ドロップ)ことで、直感的にコンピュータ操
作を行うことができる。また、デスクトップ上には、メ
ニュー・バーやツール・ボックスなど、各種の機能すな
わちコンピュータ処理を瞬時に呼び出すためのボタンが
用意されており、コマンド入力の様式はますます直感的
で分かり易いものとなってきている。
[0005] On the desktop provided with the GUI,
All resource objects handled on the computer system, such as files, are represented as icons.
The user can select the program on the display screen,
Intuitively operate a computer by applying an operation directly to a display object on the screen using a mouse or the like (for example, clicking or dragging and dropping) on an icon symbolizing data, a folder, a device, or the like. It can be performed. In addition, there are buttons on the desktop, such as a menu bar and tool box, for instantly calling various functions, that is, computer processing, making the command input style more intuitive and easy to understand. Is coming.
【0006】GUI環境の導入により、もはやユーザ
は、特定のコマンドの名称やコマンド操作方法等を特に
習得したり、煩雑なキー入力を行わなくとも、コンピュ
ータを充分に操作することができる。
With the introduction of the GUI environment, the user can operate the computer sufficiently without particularly learning the name of a specific command, a command operation method, or the like, or performing complicated key input.
【0007】かかるGUI環境下において利用可能なユ
ーザ入力装置として、例えば、マウスや、トラックポイ
ント、ジョイスティック、タブレット又はタッチパッド
などの座標指示装置が代表的である。このうち、マウス
は、コンピュータ業界に深く定着しており、ほとんどの
ユーザは、ドラッグ・アンド・ドロップを基調とするマ
ウス操作に慣れ親しんでいる。オフィスや家庭などの日
常生活の各場面においてコンピュータを新規導入するに
際して、マウス操作を特にトレーニングする必要は全く
ないと言っても過言ではない。マウス操作を基調とする
GUIは、既に多くのユーザ間で定着しており、複数の
汎用的な機能を提供している。
[0007] As a user input device usable in such a GUI environment, for example, a coordinate pointing device such as a mouse, a track point, a joystick, a tablet or a touch pad is representative. Of these, the mouse is deeply established in the computer industry, and most users are familiar with mouse operation based on drag and drop. It is not an exaggeration to say that there is no need to specifically train the mouse operation when newly introducing a computer in each scene of daily life such as an office or home. A GUI based on mouse operation has already been established among many users and provides a plurality of general-purpose functions.
【0008】GUI環境下では、ユーザは、コンピュー
タ・スクリーン上の表示内容に案内されながら、コンピ
ュータに対して対話的に分りやすく入力作業を行うこと
ができる。このような対話入力がさらに進んだ一例とし
て、タッチパネルを利用したユーザ入力装置を挙げるこ
とができる。この場合、ペンやユーザの指先から指示さ
れる座標値を読み取るタッチパネルがスクリーンに重畳
されているので、ユーザは、マウス操作する場合とは相
違して、スクリーンから視線を外す必要がなくなるし、
所望の表示オブジェクトを自分の指先で直接指示するこ
とができるので、操作性はさらに向上する。
In a GUI environment, a user can interactively perform input operations on a computer while being guided by display contents on a computer screen. As an example of such further advanced interactive input, a user input device using a touch panel can be cited. In this case, since the touch panel for reading coordinate values indicated by a pen or a fingertip of the user is superimposed on the screen, the user does not need to take his / her eyes off the screen, unlike the case of operating the mouse,
Since the desired display object can be directly specified by the user's fingertip, the operability is further improved.
【0009】しかしながら、従来のタッチパネルによる
ユーザ入力は、指先がタッチパネル表面上に実際に接触
させる必要がある。
[0009] However, user input using a conventional touch panel requires that a fingertip actually touches the touch panel surface.
【0010】また、パネル上に2点以上の接触点がある
と、それぞれの位置を独立して計測することができな
い。例えば、複数人がタッチパネルを囲むように配置し
て会議を行うような利用形態を考察した場合、複数の参
加者の指先がタッチパネル上に同時に触れることはある
が、システム側ではこのような現象を認識することはで
きない。最初のタッチを優先させるか、あるいは複数の
タッチを混信・混同してしまいかねない。
Further, if there are two or more contact points on the panel, each position cannot be measured independently. For example, when considering a usage form where a conference is held with multiple people surrounding the touch panel, the fingertips of multiple participants may touch the touch panel at the same time. I can't recognize. The first touch may be prioritized, or multiple touches may be confused.
【0011】また、従来のタッチパネル式のユーザ入力
は、点情報の入力を基本としており、接近している物体
の形状や、接近した指先までの距離情報などを認識する
ことはできない。
The conventional touch panel type user input is based on the input of point information, and cannot recognize the shape of an approaching object, distance information to an approaching fingertip, and the like.
【0012】[0012]
【発明が解決しようとする課題】本発明の目的は、コン
ピュータに対してオブジェクトの操作やコマンドなどを
ユーザの指先を用いて直接入力することができる、優れ
たユーザ入力装置を提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide an excellent user input device capable of directly inputting an operation of an object, a command or the like to a computer by using a fingertip of a user. .
【0013】本発明の更なる目的は、コンピュータに対
してオブジェクトの操作やコマンドなどの入力を非接触
形式で行うことができる、優れたユーザ入力装置を提供
することにある。
It is a further object of the present invention to provide an excellent user input device capable of inputting an operation of an object or a command to a computer in a non-contact manner.
【0014】本発明の更なる目的は、2点以上の情報や
接近する物体の形状や物体までの距離情報などを認識す
ることができる、優れた非接触型ユーザ入力装置を提供
することにある。
A further object of the present invention is to provide an excellent non-contact type user input device capable of recognizing information of two or more points, the shape of an approaching object, information on the distance to the object, and the like. .
【0015】[0015]
【課題を解決するための手段及び作用】本発明は、上記
課題を参酌してなされたものであり、ユーザの指先など
を用いて非接触形式で入力する非接触型ユーザ入力装置
であって、複数の線状の送信電極と、前記の各送信電極
に送信用の交流電流を供給する発信器と、前記の各送信
電極とは接触しないように配置された複数の線状の受信
電極と、受信電極を流れる交流電流を受信する受信器と
を備え、送信電極と受信電極の各交差点においてコンデ
ンサと等価な回路が形成されている、ことを特徴とする
非接触型ユーザ入力装置である。
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and is a non-contact type user input device for inputting in a non-contact form using a fingertip of a user. A plurality of linear transmission electrodes, a transmitter that supplies an alternating current for transmission to each of the transmission electrodes, and a plurality of linear reception electrodes arranged so as not to contact with each of the transmission electrodes, A non-contact type user input device comprising: a receiver for receiving an alternating current flowing through a reception electrode; and a circuit equivalent to a capacitor is formed at each intersection of the transmission electrode and the reception electrode.
【0016】このような構成の非接触型ユーザ入力装置
によれば、送信電極と受信電極の各交差点では、コンデ
ンサと等価な第1のコンデンサ等価回路が仮想的に形成
されている。
According to the non-contact type user input device having such a configuration, a first capacitor equivalent circuit equivalent to a capacitor is virtually formed at each intersection of the transmission electrode and the reception electrode.
【0017】また、ユーザの指先などの導電性の物体が
接近したことに応じて、第1のコンデンサ等価回路とは
並列的となる第2のコンデンサ等価回路が仮想的に形成
される。
Also, in response to the approach of a conductive object such as a user's fingertip, a second capacitor equivalent circuit is formed virtually in parallel with the first capacitor equivalent circuit.
【0018】前記第2のコンデンサ等価回路の静電容量
は、指先などの該導電性の物体との接近の程度に応じて
変化していく。したがって、第2のコンデンサ等価回路
とは並列的に接続された前記第1のコンデンサ等価回路
を通過する交流電流は、指先などの該導電性の物体との
接近の程度に応じて同様に変化する。このような現象を
利用して、非接触型のユーザ入力装置は、指先が接触し
たことだけでなく、接近したときの指先までの距離を計
測することができる。
The capacitance of the second capacitor equivalent circuit changes according to the degree of approach to the conductive object such as a fingertip. Therefore, the alternating current passing through the first capacitor equivalent circuit connected in parallel with the second capacitor equivalent circuit similarly changes according to the degree of approach to the conductive object such as a fingertip. . Utilizing such a phenomenon, the non-contact type user input device can measure not only the fact that the fingertip has contacted but also the distance to the fingertip when approaching.
【0019】また、前記送信器は、各送信電極に対して
交流電流をスキャンして、交流電流を送信した送信電極
と交流電流を受信した受信電極との位置関係により入力
位置を検出する信号処理部をさらに備えていてもよい。
Further, the transmitter scans an AC current to each transmission electrode, and detects an input position based on a positional relationship between the transmission electrode transmitting the AC current and the reception electrode receiving the AC current. A unit may be further provided.
【0020】このような場合、非接触のユーザ入力装置
は、入力位置を検出した送信電極と受信電極の交差点を
追跡していくことにより、接近している物体の輪郭を計
測することができる。すなわち、非接触のユーザ入力装
置は、単にユーザの指先などの物体が近づいたというこ
とを検知するだけではなく、物体の形状を認識すること
ができる。また、2以上のユーザが同時に非接触ユーザ
入力装置にアクセスしようとしても、各人の指先を分離
して認識することも可能である。
In such a case, the non-contact user input device can measure the contour of the approaching object by tracking the intersection of the transmitting electrode and the receiving electrode whose input position has been detected. That is, the non-contact user input device can not only detect that an object such as a fingertip of a user has approached, but also recognize the shape of the object. Further, even when two or more users try to access the non-contact user input device at the same time, it is possible to separate and recognize the fingertips of each user.
【0021】前記送信器は、各送信電極に対して交流電
流をスキャンさせながら印加するようにしてもよい。そ
して、非接触型ユーザ入力装置は、交流電流を送信した
送信電極と交流電流を受信した受信電極との位置関係に
より入力位置を検出する信号処理部をさらに備えていて
もよい。
The transmitter may apply an alternating current to each transmitting electrode while scanning the transmitting electrode. The non-contact user input device may further include a signal processing unit that detects an input position based on a positional relationship between a transmission electrode that has transmitted the AC current and a reception electrode that has received the AC current.
【0022】前記信号処理部は、送信電極と受信電極の
交差点で形成される第1の仮想コンデンサの静電容量
と、ユーザの指先などの導電性の物体が送信電極と受信
電極の交差点に接近したことに応じて形成される第2の
仮想コンデンサの静電容量との相違を利用して、該導電
性の物体が接近したことを検出することができる。
[0022] The signal processing section may include a capacitance of a first virtual capacitor formed at an intersection of the transmission electrode and the reception electrode, and a conductive object such as a fingertip of a user approaching the intersection of the transmission electrode and the reception electrode. Utilizing the difference from the capacitance of the second virtual capacitor formed in accordance with the above, it is possible to detect that the conductive object has approached.
【0023】また、前記信号処理部は、ユーザの指先な
どの導電性の物体と各電極との間で仮想的に形成される
コンデンサの静電容量を統合することで、該導電性の物
体の位置を検出することができる。
Further, the signal processing unit integrates the capacitance of a capacitor virtually formed between each electrode and a conductive object such as a fingertip of a user, so that the signal of the conductive object is integrated. The position can be detected.
【0024】また、本発明に係る非接触型ユーザ入力装
置のうち少なくとも前記複数の送信電極と前記複数の受
信電極とが交差してなるユーザ入力領域を、表示装置の
表示画面上に重畳させることによって、表示一体型のユ
ーザ入力装置を構成することができる。例えば、液晶表
示ディスプレイや有機LEDなどと一体的に、本発明に
係る非接触型ユーザ入力装置を構成することができる。
In the non-contact type user input device according to the present invention, at least a user input area in which the plurality of transmission electrodes and the plurality of reception electrodes intersect is superimposed on a display screen of a display device. Thus, a display-integrated user input device can be configured. For example, a non-contact type user input device according to the present invention can be configured integrally with a liquid crystal display or an organic LED.
【0025】例えば、アノード電極層とカソード電極層
が絶縁層を介して積層して構成される表示装置と一体的
に、本発明に係る非接触型ユーザ入力装置を構成するよ
うにしてもよい。
For example, the non-contact type user input device according to the present invention may be constituted integrally with a display device in which an anode electrode layer and a cathode electrode layer are laminated via an insulating layer.
【0026】このような場合、一方の電極層と他方の電
極層との組み合わせによって、前記複数の送信電極と前
記複数の受信電極とが交差してなるユーザ入力領域を構
成することができる。すなわち、直流電圧が印加される
一方の電極層に検出用の交流電圧を印加させとともに、
他方の電極層から受信される交流電流を検出するように
すればよい。
In such a case, a user input area in which the plurality of transmitting electrodes and the plurality of receiving electrodes intersect can be constituted by a combination of one electrode layer and the other electrode layer. That is, while applying an AC voltage for detection to one electrode layer to which a DC voltage is applied,
What is necessary is just to detect the alternating current received from the other electrode layer.
【0027】本発明のさらに他の目的、特徴や利点は、
後述する本発明の実施例や添付する図面に基づくより詳
細な説明によって明らかになるであろう。
[0027] Still other objects, features and advantages of the present invention are:
It will become apparent from the following more detailed description based on the embodiments of the present invention and the accompanying drawings.
【0028】[0028]
【発明の実施の形態】以下、図面を参照しながら本発明
の実施例を詳解する。
Embodiments of the present invention will be described below in detail with reference to the drawings.
【0029】図1には、本発明の一実施形態に係る非接
触型ユーザ入力装置1の基本構成を模式的に示してい
る。
FIG. 1 schematically shows a basic configuration of a non-contact type user input device 1 according to an embodiment of the present invention.
【0030】同図に示すように、非接触型ユーザ入力装
置1は、複数の線状の送信電極11−1,11−2,
…,11−mと、各送信電極11−1…に送信用の所定
周波数(例えば100KHz)の交流電流を供給する発
信器12と、静電作用によって各送信電極11−1…か
らの交流電流を受信する複数の線状の受信電極15−
1,15−2,…,15−nと、各受信電極15−1…
を流れる交流電流を受信する受信器16とで構成され
る。受信器16は、所定周波数帯域の交流電流のみを通
過させるバンド・パス・フィルタ(BPF)16Aと、増
幅器16Bと、検波器16CとからなるAM変調器と、
検波出力をデジタル形式の信号に変換するA/D変換器
16Dとで構成される。
As shown in FIG. 1, the non-contact type user input device 1 has a plurality of linear transmission electrodes 11-1, 11-2,
, 11-m, a transmitter 12 for supplying an alternating current of a predetermined frequency (for example, 100 KHz) for transmission to each transmitting electrode 11-1, and an alternating current from each transmitting electrode 11-1 due to electrostatic action. A plurality of linear receiving electrodes 15-
, 15-n, and each of the receiving electrodes 15-1 ...
And a receiver 16 for receiving an alternating current flowing through the receiver. The receiver 16 includes an AM modulator including a band-pass filter (BPF) 16A that allows only an AC current in a predetermined frequency band to pass, an amplifier 16B, and a detector 16C.
An A / D converter 16D for converting the detection output into a digital signal is provided.
【0031】各受信電極15−1,15−2,…,15
−nは、図1では各送信電極11−1,11−2,…,
11−mと交差点を持つことが分かるが、交差点ではこ
れら電極どうしが接触していない。言い換えれば、電極
どうしの各交差点では、電荷を蓄積するコンデンサと等
価な回路が実質上形成されている。したがって、送信電
極に交流電流が通過すると、これに対向する受信電極に
は、静電誘導によって、その交差点を介して交流電流が
流れる。これら各送信電極11−1,11−2,…,1
1−mと各受信電極15−1,15−2,…,15−n
が交錯する領域は、非接触型ユーザ入力装置1における
ユーザ入力領域を構成する。このユーザ入力領域は、図
示の通り、2次元的な広がりを持つ。
Each of the receiving electrodes 15-1, 15-2,..., 15
In FIG. 1, each of the transmission electrodes 11-1, 11-2,.
It can be seen that there is an intersection with 11-m, but at the intersection, these electrodes are not in contact with each other. In other words, at each intersection between the electrodes, a circuit equivalent to a capacitor for storing electric charges is substantially formed. Therefore, when an AC current passes through the transmitting electrode, the AC current flows through the intersection of the receiving electrode opposite to the transmitting electrode by electrostatic induction. Each of these transmitting electrodes 11-1, 11-2,..., 1
1-m and receiving electrodes 15-1, 15-2,..., 15-n
The area where... Intersects constitutes a user input area in the non-contact type user input device 1. This user input area has a two-dimensional spread as shown.
【0032】発信器12は、各送信電極11−1…に対
して交流電流をスキャンしながら印加する。したがっ
て、ある瞬間では、各受信電極15−1…には該当する
送信電極との交差点におけるコンデンサ等価回路からの
交流電流が流れることになり、交流電流を送信した送信
電極と交流電流を受信した受信電極との位置関係により
入力位置を検出することができる。例えば、A/D変換
された各受信電極15−1…における出力信号をプロセ
ッサ20上で所定の演算処理を行うことによって、ユー
ザ入力領域を介して2次元的なユーザ入力を検出するこ
とができる。
The transmitter 12 applies an alternating current to each of the transmitting electrodes 11-1 while scanning. Therefore, at a certain moment, an alternating current flows from the capacitor equivalent circuit at the intersection with the corresponding transmitting electrode at each receiving electrode 15-1..., And the transmitting electrode transmitting the alternating current and the receiving electrode receiving the alternating current flow. The input position can be detected based on the positional relationship with the electrodes. For example, two-dimensional user input can be detected via the user input area by performing predetermined arithmetic processing on the processor 20 of the output signals at the receiving electrodes 15-1... .
【0033】図示の例では、各送信電極11−1,11
−2,…,11−mは略平行に配列されているととも
に、各受信電極15−1,15−2,…,15−nは各
送信電極11−1…とは直交する方向に配列されてお
り、ユーザ入力領域は、電極どうしが均一に網の目上に
組み合わされた略平面状の領域である。但し、本発明の
要旨はこのような形態に特に限定されるものではなく、
各送信電極と受信電極が接触せずに交錯していれば、平
面以外の形状、例えば球状やその他の曲面状であっても
よい。
In the illustrated example, each of the transmitting electrodes 11-1 and 11-1
,..., 15-n are arranged substantially in parallel, and the receiving electrodes 15-1, 15-2,..., 15-n are arranged in a direction orthogonal to the transmitting electrodes 11-1. The user input area is a substantially planar area in which electrodes are uniformly combined on a mesh. However, the gist of the present invention is not particularly limited to such a form,
As long as the transmission electrodes and the reception electrodes intersect without contacting with each other, the transmission electrodes and the reception electrodes may have a shape other than a plane, for example, a spherical shape or another curved surface shape.
【0034】図2には、送信電極11と受信電極15間
のある1つの交差点を拡大して示している。また、図3
には、この送信電極11と受信電極15との交差点の等
価回路を示している。
FIG. 2 shows one enlarged intersection between the transmission electrode 11 and the reception electrode 15 in an enlarged manner. FIG.
2 shows an equivalent circuit of an intersection between the transmission electrode 11 and the reception electrode 15.
【0035】送信電極11と受信電極15とが交叉する
交差点では、図3に示すように、コンデンサと等価な回
路が形成される。
At the intersection where the transmission electrode 11 and the reception electrode 15 intersect, a circuit equivalent to a capacitor is formed as shown in FIG.
【0036】ここで、送信電極11側に交流電圧を印加
すると、送信電極11と受信電極15の間の静電容量C
aによって容量結合が起こり、受信電極15に交流電流
が発生する。このコンデンサCaを通過する電流の強度
は、発信器12における交流電圧の発信周波数に同調し
たバンド・パス・フィルタ16A、増幅器16B、検波
器16C、並びにA/D変換器16Dの各部により信号
処理を施すことによって、デジタル・データとして取り
出される。受信電極11において受信される交流電流の
強度は、コンデンサの静電容量Caにのみ依存する。
Here, when an AC voltage is applied to the transmission electrode 11 side, the capacitance C between the transmission electrode 11 and the reception electrode 15 is increased.
The capacitive coupling occurs due to a, and an alternating current is generated in the receiving electrode 15. Intensity of the current passing through the capacitor C a is a band-pass filter 16A tuned to the oscillation frequency of the AC voltage in the oscillator 12, an amplifier 16B, detector 16C, and the signal processing by each unit of the A / D converter 16D To obtain digital data. The intensity of the alternating current received at the receiving electrode 11 depends only on the capacitance C a of the capacitor.
【0037】静電容量Caは、送信電極11や受信電極
15の変形などがない限り、静的で、固定値を保つ。し
たがって、送信電極11側に同じ交流電圧が印加される
限り、受信電極15側において受信される交流電流の強
度は一定となる。
As long as the transmission electrode 11 and the reception electrode 15 are not deformed, the capacitance C a is static and keeps a fixed value. Therefore, as long as the same AC voltage is applied to the transmission electrode 11 side, the intensity of the AC current received at the reception electrode 15 side is constant.
【0038】次いで、このような送信電極11及び受信
電極15の組み合わせによって、ユーザの指先などの物
体を非接触で検出する仕組みについて説明する。
Next, a mechanism for detecting an object such as a user's fingertip in a non-contact manner by the combination of the transmission electrode 11 and the reception electrode 15 will be described.
【0039】図4には、送信電極11と受信電極15間
のある1つの交差点にユーザの指先が接近している様子
を示している。また、図5には、送信電極11と受信電
極15間のある1つの交差点にユーザの指先が接近した
ときの送信電極11と受信電極15との交差点の等価回
路を示している。
FIG. 4 shows a state in which a user's fingertip approaches a certain intersection between the transmission electrode 11 and the reception electrode 15. FIG. 5 shows an equivalent circuit of an intersection between the transmission electrode 11 and the reception electrode 15 when a user's fingertip approaches a certain intersection between the transmission electrode 11 and the reception electrode 15.
【0040】送信電極11と受信電極15とが交叉する
交差点では、上述したように、コンデンサCaと等価な
回路が形成される。
The transmission electrode 11 and the receiving electrode 15 in the intersection crossing, as described above, the capacitor C a equivalent circuit is formed.
【0041】また、指先などの人体は仮想的な接地点
(アース)とみなすことができる。したがって、その等
価回路は、送信電極11と受信電極15の間で形成され
るコンデンサCaと、人体と送信電極11並びに人体と
受信電極15それぞれの間で直列的に形成される仮想的
なコンデンサCb1及びCb2とが、並列的に接続された構
成となる。
A human body such as a fingertip can be regarded as a virtual ground point (earth). Accordingly, the equivalent circuit thereof, and a capacitor C a which is formed between the transmission electrode 11 and the receiving electrode 15, virtual capacitor serially formed between each body and the transmission electrode 11 and the human body and the reception electrode 15 Cb1 and Cb2 are connected in parallel.
【0042】したがって、送信電極11側に交流電圧を
印加した場合、コンデンサCb1を介してグランドに流れ
込む電流の分だけ、送信電極11と受信電極15の間の
静電容量Caによる容量結合によって発生する交流電
流、すなわち受信電極15側で検出される電流の強度は
弱まる。
[0042] Therefore, when an AC voltage is applied to the transmission electrode 11 side, by the amount of current flowing to the ground through a capacitor C b1, the capacitive coupling by the capacitance C a between the transmission electrodes 11 and the receiving electrode 15 The generated alternating current, that is, the intensity of the current detected on the receiving electrode 15 side is weakened.
【0043】静電容量Caは、送信電極11や受信電極
15の変形などがない限り、静的で、固定値を保つ。こ
れに対し、人体と送信電極11並びに人体と受信電極1
5それぞれの間で直列的に形成される仮想的なコンデン
サのそれぞれの静電容量Cb1及びCb2は、人体が送信電
極11並びに受信電極15に接近するに従って大きくな
る。
As long as the transmission electrode 11 and the reception electrode 15 are not deformed, the capacitance C a is static and keeps a fixed value. On the other hand, the human body and the transmission electrode 11 and the human body and the reception electrode 1
The capacitances C b1 and C b2 of the virtual capacitors formed in series between the respective electrodes 5 increase as the human body approaches the transmission electrode 11 and the reception electrode 15.
【0044】このため、同じ交流電圧を送信電極11に
印加した場合、受信電極15で検出される交流電流の強
度は、人体が送信電極11並びに受信電極15に接近す
るに従って、小さくなっていく。
For this reason, when the same AC voltage is applied to the transmission electrode 11, the intensity of the AC current detected by the reception electrode 15 decreases as the human body approaches the transmission electrode 11 and the reception electrode 15.
【0045】このような現象を利用して、プロセッサ2
0では、AM変調器16でAM変調され、さらにA/D
変換器16Dでデジタル形式に変換された受信信号を用
いて、電極間の交差点に人体が接近しているかどうかを
判定したり、あるいは、人体がどの程度接近しているか
(距離)を計測することができる。
Using such a phenomenon, the processor 2
At 0, the signal is AM-modulated by the AM modulator 16 and the A / D
Using the received signal converted into a digital format by the converter 16D, determining whether the human body is approaching the intersection between the electrodes, or measuring how close the human body is (distance). Can be.
【0046】図1に示したように、本実施形態に係る非
接触ユーザ入力装置1は、このような送信電極11−1
…と受信電極15−1…との交差点が、m×nのマトリ
ックス状に配列されている。例えば、所定の平面(又は
曲面)からなる入力パネル上に、これら各電極の交点を
配設することができる。
As shown in FIG. 1, the non-contact user input device 1 according to the present embodiment has such a transmission electrode 11-1.
And the receiving electrodes 15-1 are arranged in a matrix of m × n. For example, intersections of these electrodes can be arranged on an input panel formed of a predetermined plane (or curved surface).
【0047】交流電圧を各送信電極11−1,11−
2,…,11−mに時分割で印加する。そして、それぞ
れに対応して、各受信電極15−1,15−2,…,1
5−nに発生する交流電流を順次計測することで、ユー
ザ入力領域上のどの交差点に人体が接近しているかを判
定することができる。
The AC voltage is applied to each of the transmitting electrodes 11-1, 11-
2,..., 11-m are applied in a time sharing manner. Each of the receiving electrodes 15-1, 15-2,.
By sequentially measuring the alternating current generated in 5-n, it is possible to determine at which intersection on the user input area the human body is approaching.
【0048】本実施形態に係る非接触ユーザ入力装置1
1では、静電作用を利用しているので、ユーザの指先な
どの人体を検出するために、人体が電極に直接接触して
いる必要はない。また、近傍の交差点で得られた各検出
値を統合して、一般的な幾何学的演算などを施すことに
よって、入力面から指先までの距離を計測することがで
きる。
Non-contact user input device 1 according to the present embodiment
In No. 1, since the electrostatic action is used, the human body does not need to be in direct contact with the electrodes in order to detect the human body such as the user's fingertip. Further, the distance from the input surface to the fingertip can be measured by integrating the detection values obtained at the nearby intersections and performing a general geometric operation or the like.
【0049】また、図1に示すような構成によれば、電
極間の各交差点を独立して駆動させることができる。す
なわち、それぞれの交差点から独立して検出値を取り出
すことができるので、複数の物体(例えば、同じユーザ
の右手と左手、あるいは複数のユーザの手)が同時にユ
ーザ入力領域に接近してきた場合には、その距離が交差
点間のピッチ間隔よりも長ければ、これらを独立した物
体として認識することができる。すなわち、複数の物体
の位置を同時に計測することができる。
Further, according to the configuration shown in FIG. 1, each intersection between the electrodes can be driven independently. That is, since the detection value can be taken out independently from each intersection, when a plurality of objects (for example, the right hand and the left hand of the same user, or the hands of a plurality of users) simultaneously approach the user input area, If the distance is longer than the pitch interval between intersections, these can be recognized as independent objects. That is, the positions of a plurality of objects can be measured simultaneously.
【0050】また、物体の接近が同時に検出された交差
点を追跡していくことにより、接近している物体の形状
又は輪郭を捉えることができる。
Further, by tracking the intersection where the approach of the object is detected at the same time, the shape or contour of the approaching object can be grasped.
【0051】図6には、非接触ユーザ入力装置1の変形
例を図解している。
FIG. 6 illustrates a modification of the non-contact user input device 1.
【0052】ユーザの指先がある格子点A,B,C,D
で囲まれた領域に接近してきた場合、各送信電極11−
i,11−j、並びに各受信電極15−p,15−qと
ユーザの指先との間では、仮想的なコンデンサCI
J,CP,CQがそれぞれ形成されている。
Grid points A, B, C, and D where the user's fingertip is located
When approaching the area surrounded by, each transmission electrode 11-
i, 11-j, and between each receiving electrode 15-p, 15-q and the user's fingertip, a virtual capacitor C I ,
C J , C P and C Q are formed respectively.
【0053】これら各仮想コンデンサの静電容量CI
J,CP,CQは、それぞれの電極とユーザの指先との
距離に応じて変化する。
The capacitances C I ,
C J , C P , and C Q change according to the distance between each electrode and the user's fingertip.
【0054】したがって、人体と電極との複数の交差点
からの値を統合することで、各交差点の中間にある手の
位置を計測することができる。すなわち、本実施形態に
係る非接触ユーザ入力装置1の位置計測の制度は、各電
極間の交差点の間隔よりも細かくすることができる。
Therefore, by integrating values from a plurality of intersections between the human body and the electrodes, the position of the hand in the middle of each intersection can be measured. That is, the accuracy of the position measurement of the non-contact user input device 1 according to the present embodiment can be made smaller than the interval between the intersections between the electrodes.
【0055】また、図7には、非接触ユーザ入力装置1
の他の変形例を図解している。
FIG. 7 shows a non-contact user input device 1.
14 illustrates another modification of the first embodiment.
【0056】図1を参照しながら既に説明したように、
本実施形態に係る非接触ユーザ入力装置1は、そのユー
ザ入力領域において、送信電極11−1…と受信電極1
5−1…との交差点がm×nのマトリックス状に配列さ
れている。また、図1に示すような構成によれば、電極
間の各交差点を独立して駆動させて、それぞれの交差点
から独立して検出値を取り出すことができる。
As already described with reference to FIG.
The non-contact user input device 1 according to the present embodiment has a transmission electrode 11-1.
The intersections with 5-1 are arranged in a matrix of m × n. Further, according to the configuration as shown in FIG. 1, each intersection between the electrodes can be driven independently, and the detection value can be taken out from each intersection independently.
【0057】したがって、図7に示すように、ユーザ入
力領域に複数のユーザの指先が存在するような場合、そ
れぞれのユーザの指先の近傍における交差点において、
これらを独立して認識することができる。この結果、単
一のユーザ入力装置を用いて、複数のユーザからの同時
入力を受容することができる。
Therefore, as shown in FIG. 7, when a plurality of user's fingertips exist in the user input area, at an intersection near each user's fingertip,
These can be recognized independently. As a result, simultaneous input from a plurality of users can be received using a single user input device.
【0058】また、図8には、非接触ユーザ入力装置1
の他の変形例を図解している。
FIG. 8 shows a non-contact user input device 1.
14 illustrates another modification of the first embodiment.
【0059】図1を参照しながら既に説明したように、
本実施形態に係る非接触ユーザ入力装置1は、そのユー
ザ入力領域において、送信電極11−1…と受信電極1
5−1…との交差点がm×nのマトリックス状に配列さ
れている。但し、図8に示す例では、各送信電極11−
1,11−2,…,11−m、並びに、各受信電極15
−1−1,15−2,…,15−nの間隔は充分に短く
配設され、また、送信器12が各送信電極11−1に交
流電圧を印加するスキャン速度は充分に速いものとす
る。
As already described with reference to FIG.
The non-contact user input device 1 according to the present embodiment has a transmission electrode 11-1.
The intersections with 5-1 are arranged in a matrix of m × n. However, in the example shown in FIG.
, 11-m, and each receiving electrode 15
, 15-n are arranged to be sufficiently short, and the scanning speed at which the transmitter 12 applies an AC voltage to each transmitting electrode 11-1 is sufficiently fast. I do.
【0060】このような場合、図8に示すように、ユー
ザが掌をユーザ入力領域に接近させた場合、接近したこ
とを検出した交差点を追跡していくことにより、物体す
なわち掌の形状を認識することができる。
In such a case, as shown in FIG. 8, when the user approaches the palm to the user input area, the shape of the object, that is, the shape of the palm is recognized by tracing the intersection where the approach is detected. can do.
【0061】すなわち、各電極間のピッチ間隔を充分小
さく、且つ、送信電極におけるスキャン速度を充分速く
することによって、本実施形態に係る非接触ユーザ入力
装置1は、物体の形状を認識することができる。
That is, by making the pitch interval between the electrodes sufficiently small and making the scan speed at the transmission electrode sufficiently high, the non-contact user input device 1 according to the present embodiment can recognize the shape of the object. it can.
【0062】本実施形態に係る非接触ユーザ入力装置1
を他のデバイスと組み合わせて適用することも考えられ
る。例えば、液晶表示ディスプレイ(LCD:Liquid C
rystal Display)や有機ELなどの平面ディスプレイ上
に、非接触ユーザ入力装置1を重畳することにより、表
示一体型のユーザ入力装置を構成することができる。こ
のようなユーザ入力装置によれば、ユーザは、表示出力
されるGUI画面の内容に案内されながら、直感的且つ
容易にコンピュータへのコマンド入力を行うことができ
る。ユーザは、表示画面から視線をそらすことなく入力
作業を行うことができ、ご操作する危険も少なくなる。
Non-contact user input device 1 according to this embodiment
May be applied in combination with other devices. For example, a liquid crystal display (LCD: Liquid C)
By superimposing the non-contact user input device 1 on a flat display such as a crystal display or an organic EL, a display-integrated user input device can be configured. According to such a user input device, the user can intuitively and easily input a command to the computer while being guided by the content of the GUI screen to be displayed and output. The user can perform an input operation without distracting his / her eyes from the display screen, and the danger of performing the operation is reduced.
【0063】図9には、導電性ポリマーによる発光素子
すなわち有機LEDからなる表示装置と一体的に構成さ
れた非接触ユーザ入力装置1の断面構成を模式的に図解
している。
FIG. 9 schematically illustrates a cross-sectional structure of a non-contact user input device 1 integrally formed with a display device including a light emitting element made of a conductive polymer, that is, an organic LED.
【0064】同図に示す例では、導電性ポリマーからな
るアノード電極層とカソード電極層が、有機素材からな
る絶縁層を介して積層されている。また、アノード電極
とカソード電極は、互いに直行して配設されている。こ
れは、図1における、各送信電極11−1…と各受信電
極15−1…が互いに接触しないように交差して配設さ
れている構成に類似する。
In the example shown in the figure, an anode electrode layer made of a conductive polymer and a cathode electrode layer are laminated via an insulating layer made of an organic material. Further, the anode electrode and the cathode electrode are arranged perpendicular to each other. This is similar to the configuration in FIG. 1 in which the transmission electrodes 11-1 and the reception electrodes 15-1 are arranged so as to cross each other so as not to contact each other.
【0065】有機ディスプレイにおいては、各画素を発
光させるために、一方の電極層では、画面スキャン方向
に向かって各電極には直流電圧が順次印加される。
In the organic display, in order to make each pixel emit light, a DC voltage is sequentially applied to each electrode in one electrode layer in the screen scanning direction.
【0066】本実施形態では、一方の電極層に流れる直
流電圧に、人体検出用の交流電圧を重畳させて印加す
る。この結果、他方の電極層では、交流電流を受信す
る。ユーザの指先などの人体が接近している交差点にお
いては、受信される交流電流の強度が減少するので、ユ
ーザの指先が居る位置を特定したり、さらには、接近し
ている物体の形状を認識したりすることができる。
In this embodiment, an AC voltage for detecting a human body is superimposed on a DC voltage flowing through one electrode layer and applied. As a result, the other electrode layer receives an alternating current. At the intersection where the human body is approaching, such as the user's fingertip, the intensity of the received alternating current is reduced, so the position where the user's fingertip is located can be specified, and further, the shape of the approaching object can be recognized. Or you can.
【0067】図9に示したような構成によれば、有機デ
ィスプレイにおける画面構成を変更することなく、表示
装置をそのまま非接触型ユーザ入力装置としても利用す
ることができる。
According to the configuration shown in FIG. 9, the display device can be used as it is as a non-contact type user input device without changing the screen configuration of the organic display.
【0068】また、有機ディスプレイは、一般に、フレ
キシブルであり、自由に折り曲げることが可能である。
したがって、図9に示したような適用例によれば、球面
や筒状のユーザ入力一体型のディスプレイ装置を構成す
ることができる。
An organic display is generally flexible and can be freely bent.
Therefore, according to the application example as shown in FIG. 9, it is possible to configure a spherical or cylindrical user input integrated type display device.
【0069】[追補]以上、特定の実施例を参照しなが
ら、本発明について詳解してきた。しかしながら、本発
明の要旨を逸脱しない範囲で当業者が該実施例の修正や
代用を成し得ることは自明である。すなわち、例示とい
う形態で本発明を開示してきたのであり、限定的に解釈
されるべきではない。本発明の要旨を判断するために
は、冒頭に記載した特許請求の範囲の欄を参酌すべきで
ある。
[Supplement] The present invention has been described in detail with reference to the specific embodiments. However, it is obvious that those skilled in the art can modify or substitute the embodiment without departing from the spirit of the present invention. That is, the present invention has been disclosed by way of example, and should not be construed as limiting. In order to determine the gist of the present invention, the claims described at the beginning should be considered.
【0070】[0070]
【発明の効果】以上詳記したように、本発明によれば、
コンピュータに対してオブジェクトの操作やコマンドな
どをユーザの指先を用いて直接入力することができる、
優れたユーザ入力装置を提供することができる。
As described above in detail, according to the present invention,
It is possible to directly input object operations and commands to the computer using the user's fingertips.
An excellent user input device can be provided.
【0071】また、本発明によれば、コンピュータに対
してオブジェクトの操作やコマンドなどの入力を非接触
形式で行うことができる、優れたユーザ入力装置を提供
することができる。
Further, according to the present invention, it is possible to provide an excellent user input device capable of inputting an operation of an object or a command to a computer in a non-contact manner.
【0072】また、本発明によれば、2点以上の情報や
接近する物体の形状や物体までの距離情報などを認識す
ることができる、優れた非接触型ユーザ入力装置を提供
することができる。
Further, according to the present invention, it is possible to provide an excellent non-contact type user input device capable of recognizing information of two or more points, the shape of an approaching object, information on the distance to the object, and the like. .
【0073】本発明に係る非接触型ユーザ入力装置にお
いては、送信電極と受信電極の各交差点ではコンデンサ
と等価な第1のコンデンサ等価回路が仮想的に形成され
ている。また、ユーザの指先などの導電性の物体が接近
したことに応じて、第1のコンデンサ等価回路とは並列
的となる第2のコンデンサ等価回路が仮想的に形成され
る。指先などの該導電性の物体との接近の程度に応じて
前記第2のコンデンサ等価回路の静電容量が変化して、
この結果、前記第1のコンデンサ等価回路を通過する交
流電流が変化する。したがって、このような現象を利用
することによって、指先が接触したことだけでなく、接
近したときの指先までの距離を計測することができる。
In the non-contact type user input device according to the present invention, a first capacitor equivalent circuit equivalent to a capacitor is virtually formed at each intersection of the transmission electrode and the reception electrode. Further, in response to the approach of a conductive object such as a user's fingertip, a second capacitor equivalent circuit is formed virtually in parallel with the first capacitor equivalent circuit. The capacitance of the second capacitor equivalent circuit changes according to the degree of approach to the conductive object such as a fingertip,
As a result, the alternating current passing through the first capacitor equivalent circuit changes. Therefore, by utilizing such a phenomenon, it is possible to measure not only the fact that the fingertip has contacted but also the distance to the fingertip when approaching.
【0074】また、各送信電極に対して交流電流をスキ
ャン入力することにより、交流電流を送信した送信電極
と交流電流を受信した受信電極との位置関係により入力
位置を検出することができる。入力位置を検出した送信
電極と受信電極の交差点を追跡していくことにより、接
近している物体の輪郭を計測することができる。すなわ
ち、非接触のユーザ入力装置は、単にユーザの指先など
の物体が近づいたということを検知するだけではなく、
物体の形状を認識することができる。また、2以上のユ
ーザが同時に非接触ユーザ入力装置にアクセスしようと
しても、各人の指先を分離して認識することも可能であ
る。
By scanning and inputting an alternating current to each transmitting electrode, the input position can be detected based on the positional relationship between the transmitting electrode that has transmitted the alternating current and the receiving electrode that has received the alternating current. By tracing the intersection of the transmitting electrode and the receiving electrode whose input position has been detected, the contour of the approaching object can be measured. That is, the non-contact user input device does not merely detect that an object such as a user's fingertip has approached,
The shape of the object can be recognized. Further, even when two or more users try to access the non-contact user input device at the same time, it is possible to separate and recognize the fingertips of each user.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の一実施形態に係る非接触型ユーザ入力
装置1の基本構成を模式的に示した図である。
FIG. 1 is a diagram schematically showing a basic configuration of a non-contact type user input device 1 according to an embodiment of the present invention.
【図2】送信電極11と受信電極15間のある1つの交
差点を拡大して示した図である。
FIG. 2 is an enlarged view of a certain intersection between a transmission electrode 11 and a reception electrode 15;
【図3】送信電極11と受信電極15間のある1つの交
差点の等価回路を示した図である。
FIG. 3 is a diagram showing an equivalent circuit of a certain intersection between a transmission electrode 11 and a reception electrode 15;
【図4】送信電極11と受信電極15間のある1つの交
差点にユーザの指先が接近している様子を示した図であ
る。
FIG. 4 is a diagram showing a state in which a user's fingertip is approaching a certain intersection between a transmission electrode 11 and a reception electrode 15;
【図5】送信電極11と受信電極15間のある1つの交
差点にユーザの指先が接近したときの送信電極11と受
信電極15との交差点の等価回路を示した図である。
FIG. 5 is a diagram showing an equivalent circuit of an intersection between the transmission electrode 11 and the reception electrode 15 when a user's fingertip approaches a certain intersection between the transmission electrode 11 and the reception electrode 15;
【図6】非接触ユーザ入力装置1の変形例を説明するた
めの図である。
FIG. 6 is a diagram illustrating a modification of the non-contact user input device 1.
【図7】非接触ユーザ入力装置1の変形例を説明するた
めの図である。
FIG. 7 is a diagram illustrating a modification of the non-contact user input device 1.
【図8】非接触ユーザ入力装置1の変形例を説明するた
めの図である。
FIG. 8 is a diagram for explaining a modification of the non-contact user input device 1.
【図9】導電性ポリマーによる発光素子すなわち有機L
EDからなる表示装置と一体的に構成された非接触ユー
ザ入力装置1の断面構成を示した図である。
FIG. 9 shows a light emitting device using a conductive polymer, that is, organic L.
FIG. 2 is a diagram illustrating a cross-sectional configuration of a non-contact user input device configured integrally with a display device including an ED.
【符号の説明】[Explanation of symbols]
1…非接触ユーザ入力装置 11…送信電極 12…送信器 15…受信電極 16…AM変調器 16A…バンド・パス・フィルタ,16B…増幅器 16C…検波器,16D…A/D変換器 20…プロセッサ DESCRIPTION OF SYMBOLS 1 ... Non-contact user input device 11 ... Transmitting electrode 12 ... Transmitter 15 ... Receiving electrode 16 ... AM modulator 16A ... Band pass filter, 16B ... Amplifier 16C ... Detector, 16D ... A / D converter 20 ... Processor

Claims (8)

    【特許請求の範囲】[Claims]
  1. 【請求項1】ユーザの指先などを用いて非接触形式で入
    力する非接触型ユーザ入力装置であって、 複数の線状の送信電極と、 前記の各送信電極に送信用の交流電流を供給する発信器
    と、 前記の各送信電極とは接触しないように配置された複数
    の線状の受信電極と、 受信電極を流れる交流電流を受信する受信器とを備え、 送信電極と受信電極の各交差点においてコンデンサと等
    価な回路が形成されている、ことを特徴とする非接触型
    ユーザ入力装置。
    1. A non-contact type user input device for inputting in a non-contact manner using a fingertip of a user or the like, comprising: supplying a plurality of linear transmission electrodes; and transmitting AC current to each of the transmission electrodes. And a plurality of linear receiving electrodes arranged so as not to contact with each of the transmitting electrodes, and a receiver for receiving an alternating current flowing through the receiving electrodes. A non-contact type user input device, wherein a circuit equivalent to a capacitor is formed at an intersection.
  2. 【請求項2】送信電極と受信電極の各交差点ではコンデ
    ンサと等価な第1のコンデンサ等価回路が形成されてい
    るとともに、 ユーザの指先などの導電性の物体が送信電極と受信電極
    の交差点に接近したことに応じて、第1のコンデンサ等
    価回路とは並列的となる第2のコンデンサ等価回路が形
    成されて、 該導電性の物体との接近の程度に応じて前記第2のコン
    デンサ等価回路の静電容量が変化して、この結果、前記
    第1のコンデンサ等価回路を通過する交流電流が変化す
    る、ことを特徴とする請求項1に記載の非接触型ユーザ
    入力装置。
    2. A first capacitor equivalent circuit equivalent to a capacitor is formed at each intersection of a transmission electrode and a reception electrode, and a conductive object such as a fingertip of a user approaches the intersection of the transmission electrode and the reception electrode. Accordingly, a second capacitor equivalent circuit is formed in parallel with the first capacitor equivalent circuit, and the second capacitor equivalent circuit of the second capacitor equivalent circuit is formed in accordance with the degree of approach to the conductive object. 2. The non-contact user input device according to claim 1, wherein a capacitance changes, and as a result, an alternating current passing through the first capacitor equivalent circuit changes. 3.
  3. 【請求項3】前記送信器は、各送信電極に対して交流電
    流をスキャンして、 交流電流を送信した送信電極と交流電流を受信した受信
    電極との位置関係によりユーザの指先などの入力位置を
    検出する信号処理部をさらに備える、ことを特徴とする
    請求項1に記載の非接触型ユーザ入力装置。
    3. The transmitter scans an AC current with respect to each transmission electrode, and determines an input position such as a fingertip of a user according to a positional relationship between a transmission electrode that has transmitted the AC current and a reception electrode that has received the AC current. The non-contact type user input device according to claim 1, further comprising a signal processing unit configured to detect the user input.
  4. 【請求項4】前記信号処理部は、送信電極と受信電極の
    交差点で形成される第1の仮想コンデンサの静電容量
    と、ユーザの指先などの導電性の物体が送信電極と受信
    電極の交差点に接近したことに応じて形成される第2の
    仮想コンデンサの静電容量との相違を利用して、該導電
    性の物体が接近したことを検出する、ことを特徴とする
    請求項3に記載の非接触型ユーザ入力装置。
    4. The signal processing section according to claim 1, wherein the capacitance of the first virtual capacitor formed at the intersection of the transmission electrode and the reception electrode, and the intersection between the transmission electrode and the reception electrode of a conductive object such as a user's fingertip. 4. The method according to claim 3, wherein a difference between the capacitance of the second virtual capacitor and the capacitance of the second virtual capacitor formed in response to the proximity of the object is detected by detecting the proximity of the conductive object. Non-contact type user input device.
  5. 【請求項5】前記信号処理部は、ユーザの指先などの導
    電性の物体と各電極との間で仮想的に形成されるそれぞ
    れのコンデンサの静電容量を統合することで、該導電性
    の物体の位置を検出する、ことを特徴とする請求項3に
    記載の非接触型ユーザ入力装置。
    5. The signal processing unit integrates the capacitance of each capacitor virtually formed between a conductive object such as a user's fingertip and each electrode, thereby forming the conductive material. The non-contact type user input device according to claim 3, wherein a position of the object is detected.
  6. 【請求項6】少なくとも前記複数の送信電極と前記複数
    の受信電極とが交差して構成されるユーザ入力領域が表
    示装置の表示画面上に重畳されている、ことを特徴とす
    る請求項1に記載の非接触型ユーザ入力装置。
    6. The apparatus according to claim 1, wherein a user input area formed by intersecting at least said plurality of transmission electrodes and said plurality of reception electrodes is superimposed on a display screen of a display device. A non-contact type user input device according to claim 1.
  7. 【請求項7】アノード電極層とカソード電極層が絶縁層
    を介して積層して構成される表示装置と一体的に構成さ
    れている、ことを特徴とする請求項1に記載の非接触型
    ユーザ入力装置。
    7. The non-contact type user according to claim 1, wherein the anode electrode layer and the cathode electrode layer are integrally formed with a display device which is laminated with an insulating layer interposed therebetween. Input device.
  8. 【請求項8】直流電圧が印加される一方の電極層に検出
    用の交流電圧を印加させとともに、他方の電極層から受
    信される交流電流を検出することによって、前記複数の
    送信電極と前記複数の受信電極とが交差してなるユーザ
    入力領域を構成する、ことを特徴とする請求項7に記載
    の非接触型ユーザ入力装置。
    8. The plurality of transmitting electrodes and the plurality of transmitting electrodes by applying an AC voltage for detection to one electrode layer to which a DC voltage is applied and detecting an AC current received from the other electrode layer. The non-contact type user input device according to claim 7, wherein a user input area is formed by intersecting the receiving electrode of the non-contact type.
JP2001151499A 2001-05-21 2001-05-21 User input device Expired - Lifetime JP3800984B2 (en)

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JP2001151499A JP3800984B2 (en) 2001-05-21 2001-05-21 User input device
EP02771738A EP1391807A4 (en) 2001-05-21 2002-05-21 User input apparatus, computer connected to user input apparatus, method of controlling computer connected to user input apparatus, and storage medium
CNB028104382A CN1320424C (en) 2001-05-21 2002-05-21 User input apparatus, computer connected to user input apparatus, method of controlling computer connected to user input apparatus, and storage medium
KR1020037015119A KR100936850B1 (en) 2001-05-21 2002-05-21 User input apparatus, computer connected to user input apparatus, and method of controlling computer connected to user input apparatus
US10/478,541 US8773351B2 (en) 2001-05-21 2002-05-21 User input apparatus, computer connected to user input apparatus, method of controlling computer connected to user input apparatus, and storage medium
PCT/JP2002/004875 WO2002095563A1 (en) 2001-05-21 2002-05-21 User input apparatus, computer connected to user input apparatus, method of controlling computer connected to user input apparatus, and storage medium
US14/250,570 US9898191B2 (en) 2001-05-21 2014-04-11 User input apparatus, computer connected to user input apparatus, and control method for computer connected to user input apparatus, and storage medium
US14/310,228 US9134840B2 (en) 2001-05-21 2014-06-20 User input apparatus, computer connected to user input apparatus, and control method for computer connected to user input apparatus, and storage medium
US14/533,524 US20150054787A1 (en) 2001-05-21 2014-11-05 User input apparatus, computer connected to user input apparatus, and control method for computer connected to user input apparatus, and storage medium
US14/823,919 US10140016B2 (en) 2001-05-21 2015-08-11 User input apparatus, computer connected to user input apparatus, and control method for computer connected to user input apparatus, and storage medium
US16/189,419 US10671280B2 (en) 2001-05-21 2018-11-13 User input apparatus, computer connected to user input apparatus, and control method for computer connected to user input apparatus, and storage medium

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