JP2003087399A - Wireless transmitter-receiver and wireless transmission reception system - Google Patents
Wireless transmitter-receiver and wireless transmission reception systemInfo
- Publication number
- JP2003087399A JP2003087399A JP2001273740A JP2001273740A JP2003087399A JP 2003087399 A JP2003087399 A JP 2003087399A JP 2001273740 A JP2001273740 A JP 2001273740A JP 2001273740 A JP2001273740 A JP 2001273740A JP 2003087399 A JP2003087399 A JP 2003087399A
- Authority
- JP
- Japan
- Prior art keywords
- wireless
- wireless transmission
- circuit
- reception
- power supply
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば携帯電話等
の移動体通信の無線送受信装置において、移動体通信の
無線周波数を使用しない、独立な他の手段により、外部
から自動的に起動、動作停止させる無線送受信装置及び
無線送受信システムに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication device for mobile communication such as a mobile phone, which is automatically activated and operated from the outside by other independent means which does not use the radio frequency of mobile communication. The present invention relates to a wireless transmission / reception device and a wireless transmission / reception system to be stopped.
【０００２】[0002]
【従来の技術】近年、携帯電話に代表される移動体通信
の普及が目覚しい中、街中の至るところに電波が溢れて
いる。一般に移動体通信の無線送受信装置はその携帯者
の意図に拘わらず、隣接セルへの移動時、あるいは着呼
時等、基地局との間での通信を行う。2. Description of the Related Art In recent years, with the spread of mobile communication represented by mobile phones being remarkable, radio waves are flooding everywhere in the city. In general, a wireless transceiver for mobile communication performs communication with a base station when moving to an adjacent cell or receiving a call, regardless of the intention of the carrier.
【０００３】現在の技術では、携帯者が何かの事情によ
り、携帯電話の動作を停止させる、あるいは再起動させ
るためには、携帯者が自らの意思で携帯電話等の電源を
ＯＦＦ、あるいはＯＮする必要がある。In the present technology, in order for the carrier to stop or restart the operation of the mobile phone for some reason, the carrier turns off or turns on the power of the mobile phone or the like on his own will. There is a need to.
【０００４】[0004]
【発明が解決しようとする課題】例えば音楽会の会場
内、航空機内等、ある限られたエリア内では、他の人の
迷惑になるという観点から、携帯電話等の使用を制限す
る状況も増えている。しかし、携帯者が携帯電話の電源
をＯＦＦにするかどうかは携帯者の意思に任されるた
め、この徹底は難しいものがある。In a limited area such as a venue of a music concert, an airplane, etc., from the viewpoint of being a nuisance to other people, there are more and more situations where the use of a mobile phone or the like is restricted. ing. However, since it is up to the carrier to decide whether or not the carrier turns off the power of the mobile phone, this thorough implementation is difficult.
【０００５】携帯者にしても、一旦、電源をＯＦＦとし
た後、音楽会会場や航空機から出た時に再び、電源をＯ
Ｎとすることを忘れてしまうと、その後の着呼を認識で
きないままになる、という懸念があるために、入場時に
電源ＯＦＦにすることを嫌がることも有りうる。[0005] Even if the carrier carries the power off, the power is turned on again when leaving the concert hall or the aircraft.
There is a concern that if the user forgets to set the number to N, the subsequent incoming call may not be recognized, and thus it may be disliked to turn off the power at the time of entry.
【０００６】一般に移動体通信では、基地局と携帯電話
等との間で相互に信号のやり取りを行って初めて通信が
可能になるものであるため、電源がＯＦＦとなっていて
電波を受信できない携帯電話を基地局からの電波で電源
をＯＮにすることは出来ない。Generally, in mobile communication, since communication is possible only when signals are mutually exchanged between a base station and a mobile phone, etc., a mobile phone that cannot receive radio waves because the power is off. It is not possible to turn on the power of the telephone by radio waves from the base station.
【０００７】このため、前記の限られたエリアの入退出
に際して、別の手段によって、携帯者の意思とは関係な
く、携帯電話の電源をＯＦＦあるいはＯＮにする方法が
望まれる。Therefore, when entering or leaving the limited area, there is a demand for a method of turning off or turning on the power supply of the mobile phone by another means regardless of the intention of the wearer.
【０００８】また、別の例として、前記とは逆に、ある
限られたエリアの中だけで通信可能な移動体通信システ
ムもある。この場合も無線送受信機の携帯者は煩わしい
電源のＯＮあるいはＯＦＦの操作をすることなく、常に
電源をＯＮにしておくことが想定される。As another example, contrary to the above, there is also a mobile communication system capable of communicating only within a limited area. Also in this case, it is assumed that the radio transmitter / receiver always keeps the power on without performing a troublesome ON / OFF operation.
【０００９】結果として、通信が不可能なエリア外にい
る場合も常に受信回路は電波の受信可能な状態に維持さ
れるため、不要な電力を消費してしまうという不具合が
ある。通信可能な限られたエリアへの入退出時に自動的
に無線送受信機の電源がＯＮまたはＯＦＦにされる機能
が望まれる。As a result, even when the user is outside the area where communication is not possible, the receiving circuit is always kept in a radio wave receivable state, resulting in a problem that unnecessary power is consumed. It is desired to have a function of automatically turning on or off the power of the wireless transceiver when entering or leaving a limited area where communication is possible.
【００１０】本発明は上記の事情に鑑みてなされたもの
で、外部からの自動的制御で例えば携帯電話等の無線送
受信装置の動作を停止、または再起動でき、省電力にな
ると共に、他への悪影響を防止できる無線送受信装置及
び無線送受信システムを提供することを目的とする。The present invention has been made in view of the above circumstances, and it is possible to stop or restart the operation of a wireless transmission / reception device such as a mobile phone by automatic control from the outside to save power and It is an object of the present invention to provide a wireless transmission / reception device and a wireless transmission / reception system capable of preventing the adverse effects of the above.
【００１１】[0011]
【課題を解決するための手段】上記目的を達成するため
に本発明は、移動体に設けられた通信用の無線送受信回
路と、前記無線送受信回路に設けられたアンテナと、前
記無線送受信回路に電力を供給する電源回路とよりなる
無線送受信装置であって、外部からの情報を含む電磁波
の受信により電力が供給されて電子回路が起動され、前
記受信した電磁波に含まれる情報に従って、前記無線送
受信回路及び前記電源回路の機能、あるいは前記無線送
受信回路と前記電源回路のいずれかの機能を停止させ
る、または再起動させる無線タグを有することを特徴と
するものである。In order to achieve the above object, the present invention provides a wireless transmission / reception circuit for communication provided in a mobile unit, an antenna provided in the wireless transmission / reception circuit, and the wireless transmission / reception circuit. A wireless transmission / reception device including a power supply circuit for supplying electric power, the electric circuit is activated by reception of an electromagnetic wave including information from the outside, an electronic circuit is activated, and the wireless transmission / reception is performed according to the information included in the received electromagnetic wave. A wireless tag for stopping or restarting the function of the circuit and the power supply circuit, or the function of any one of the wireless transmission / reception circuit and the power supply circuit is provided.
【００１２】また本発明は、請求項１記載の無線送受信
装置と、無線装置とアンテナで構成される地上側装置と
よりなる無線送受信システムであって、地上側装置のア
ンテナ及び無線装置から前記無線送受信装置が有する無
線タグに対して、情報を含む電磁波を送出することによ
り、前記無線送受信装置の中の送受信回路及び電源回路
の機能、あるいは無線送受信回路と電源回路のいずれか
の機能を停止させる、または再起動させることを特徴と
するものである。Further, the present invention is a wireless transmission / reception system comprising the wireless transmission / reception device according to claim 1 and a ground-side device composed of the wireless device and an antenna, wherein the wireless communication is performed from the antenna of the ground-side device and the wireless device. By transmitting an electromagnetic wave containing information to a wireless tag included in the transceiver, the functions of the transceiver circuit and the power supply circuit in the wireless transceiver, or the functions of either the wireless transceiver circuit or the power supply circuit are stopped. , Or restarting.
【００１３】[0013]
【発明の実施の形態】以下図面を参照して本発明の実施
形態例を詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.
【００１４】１は固定される地上側装置であり、無線装
置２と、無線装置２に設けられたアンテナ３から構成さ
れる。無線装置２では、送信のための電磁波を生成する
とともに、無線タグに対して与えるべき情報で電磁波に
変調をかけ、アンテナ３に送る。アンテナ３からは無線
装置２により生成された電磁波が発射される。Reference numeral 1 denotes a fixed ground-side device, which comprises a radio device 2 and an antenna 3 provided in the radio device 2. The wireless device 2 generates an electromagnetic wave for transmission, modulates the electromagnetic wave with information to be given to the wireless tag, and sends it to the antenna 3. An electromagnetic wave generated by the wireless device 2 is emitted from the antenna 3.
【００１５】４は例えば携帯電話等の移動側の無線送受
信装置であり、移動体に設けられた通信用の無線送受信
回路５と、無線送受信回路５に電力を供給する電源回路
６と、無線送受信回路５に設けられたアンテナ７と、例
えばＲＦ−ＩＤ（ＲａｄｉｏＦｒｅｑｕｅｎｃｙ Ｉｄ
ｅｎｔｉｆｉｃａｔｉｏｎ）タグ等の無線タグ８から構
成される。電源回路６は無線送受信回路５に必要な電力
を供給するものであるが、ここでは、無線タグ８からの
制御信号により、電源回路６から送受信回路５への電力
供給を停止し、または、再供給する機能を持っている。Reference numeral 4 denotes a mobile radio transmitter / receiver such as a mobile phone, which comprises a radio transmitter / receiver circuit 5 for communication provided in a mobile unit, a power supply circuit 6 for supplying electric power to the radio transmitter / receiver circuit 5, and a radio transmitter / receiver. The antenna 7 provided in the circuit 5 and, for example, an RF-ID (Radio Frequency Id)
The wireless tag 8 such as an identification tag. The power supply circuit 6 supplies the power necessary for the wireless transmission / reception circuit 5, but here, the power supply from the power supply circuit 6 to the transmission / reception circuit 5 is stopped by the control signal from the wireless tag 8 or the power is supplied again. Has the function of supplying.
【００１６】無線タグ８は、地上側装置１のアンテナ３
からの電磁波を受け、その電磁波によって電源電圧を生
成し、その無線タグ８の電子回路を起動し、電磁波に変
調によって重畳されている情報を検出することが可能で
ある。その情報が、無線送受信装置４の動作を停止せ
よ、というものであれば、無線タグ８は電源回路６、ま
たは、無線送受信回路５に制御信号を送り、無線送受信
装置４の動作を停止させる。逆に無線送受信装置４の動
作を再起動せよ、というものであれば、無線タグ８から
の制御信号により、無線送受信回路５または電源回路６
を制御し、無線送受信装置４を再起動させる。The wireless tag 8 is the antenna 3 of the ground-side device 1.
It is possible to receive an electromagnetic wave from the electromagnetic wave, generate a power supply voltage by the electromagnetic wave, activate the electronic circuit of the wireless tag 8, and detect the information superimposed on the electromagnetic wave by modulation. If the information is to stop the operation of the wireless transmission / reception device 4, the wireless tag 8 sends a control signal to the power supply circuit 6 or the wireless transmission / reception circuit 5 to stop the operation of the wireless transmission / reception device 4. Conversely, if it is necessary to restart the operation of the wireless transmission / reception device 4, the wireless transmission / reception circuit 5 or the power supply circuit 6 is controlled by the control signal from the wireless tag 8.
To restart the wireless transmission / reception device 4.
【００１７】尚、ＲＦ−ＩＤシステムは、ＲＦ−ＩＤタ
グの持つ情報を電波によって非接触で読み書きできるシ
ステムである。ＲＦ−ＩＤタグそのものは蓄電池を持た
ず、地上の固定アンテナからの電波を検波し、それを起
電力として動作することができる。The RF-ID system is a system capable of reading and writing information held by an RF-ID tag by radio waves without contact. The RF-ID tag itself does not have a storage battery, and can detect radio waves from a fixed antenna on the ground and operate by using it as an electromotive force.
【００１８】本発明では、移動体通信用の無線送受信回
路５、アンテナ７、電源回路６、及び、無線タグ８を持
つ無線送受信装置４を使用し、外部からの情報を含む電
磁波によって無線タグ８に電力を供給し、その無線タグ
８の電子回路を起動し、その無線タグ８が受信した情報
に従って、無線送受信回路５及び電源回路６、あるいは
無線送受信回路５と電源回路６のいずれかの機能を停止
させる、または再起動させる。In the present invention, the wireless transmission / reception circuit 5 for mobile communication, the antenna 7, the power supply circuit 6, and the wireless transmission / reception device 4 having the wireless tag 8 are used, and the wireless tag 8 is generated by an electromagnetic wave containing information from the outside. Power is supplied to the RFID tag 8 to activate the electronic circuit of the RFID tag 8, and according to the information received by the RFID tag 8, either the wireless transceiver circuit 5 and the power supply circuit 6 or the function of the wireless transceiver circuit 5 and the power supply circuit 6 is performed. Stop or restart.
【００１９】この場合に、限られたエリアの入場ゲー
ト、または退場ゲートに無線装置２とアンテナ３からな
る地上側装置１を設置し、これらゲートを通過する無線
タグ８に情報を含む電磁波を送出することにより、移動
体通信用の無線送受信装置４を制御する。In this case, the ground-side device 1 including the wireless device 2 and the antenna 3 is installed at an entrance gate or an exit gate in a limited area, and an electromagnetic wave containing information is transmitted to the wireless tag 8 passing through these gates. By doing so, the wireless transmission / reception device 4 for mobile communication is controlled.
【００２０】移動体通信の携帯電話等の使用を禁止した
い限られたエリアの入場ゲート、または退場ゲートに、
無線装置２とアンテナ３からなる地上側装置１を設置
し、ここを通過する無線タグ８を持つ携帯電話等の無線
送受信装置４に電磁波を送出する。入場ゲートの場合に
はこの電磁波の中に携帯電話等の無線送受信装置４の動
作を停止させるための情報を、逆に退場ゲートでは、携
帯電話等の無線送受信装置４の動作を立ち上げるための
情報を重畳する。At an entrance gate or an exit gate in a limited area where it is desired to prohibit the use of mobile phones for mobile communication,
A ground-side device 1 including a wireless device 2 and an antenna 3 is installed, and electromagnetic waves are transmitted to a wireless transmitting / receiving device 4 such as a mobile phone having a wireless tag 8 that passes through the device. In the case of an entrance gate, information for stopping the operation of the wireless transmitter / receiver 4 such as a mobile phone is included in this electromagnetic wave, and conversely, at the exit gate, it is used to start the operation of the wireless transmitter / receiver 4 such as a mobile phone. Superimpose information.
【００２１】無線タグ８を持つ携帯電話等の無線送受信
装置４では、受信した上記情報に従って、無線タグ８は
携帯電話等の無線送受信装置４の動作を停止させる、ま
たは、再度立ち上げるための信号を携帯電話等の無線送
受信装置４の無線送受信回路５、または電源回路６等に
送出する。In the wireless transmitter / receiver 4 such as a mobile phone having the wireless tag 8, the wireless tag 8 is a signal for stopping the operation of the wireless transmitter / receiver 4 such as a mobile phone or reactivating the wireless transmitter / receiver 4 according to the received information. To the wireless transmission / reception circuit 5 of the wireless transmission / reception device 4 such as a mobile phone, the power supply circuit 6 or the like.
【００２２】逆にある限られたエリアの中だけで通信が
可能な移動体通信システムにおいては、入門ゲートでは
無線送受信装置４を立ち上げるための信号を、退場ゲー
トでは無線送受信装置４の動作を停止させるための信号
を地上側装置１から無線タグ８に送出する。On the contrary, in a mobile communication system capable of communicating only within a limited area, a signal for starting up the wireless transmission / reception device 4 is provided at the entrance gate and an operation of the wireless transmission / reception device 4 is provided at the exit gate. A signal for stopping is sent from the ground side device 1 to the wireless tag 8.
【００２３】以上の作用により、携帯電話等の無線送受
信装置４の携帯者の意思に拘わらず、携帯電話等の無線
送受信装置４の使用を禁止したいエリアでは入退出ゲー
トにおいて、携帯電話等の無線送受信装置４の動作停
止、及び再立ち上げが可能になる。逆に限られたエリア
のみで通信可能な移動体システムでも、入退出ゲートに
おいて、無線送受信装置４の立ち上げ、及び動作停止が
可能になる。With the above operation, regardless of the intention of the carrier of the wireless transmitting / receiving device 4 such as a mobile phone, in an area where it is desired to prohibit the use of the wireless transmitting / receiving device 4 such as a mobile phone, the wireless communication of the mobile phone or the like is performed at the entrance / exit gate. The operation of the transmitter / receiver 4 can be stopped and restarted. On the contrary, even in a mobile system capable of communicating only in a limited area, it is possible to start up and stop the operation of the wireless transmission / reception device 4 at the entrance / exit gate.
【００２４】例えば、音楽会の会場や航空機内等の移動
体通信の携帯電話の使用を禁止したいエリアに入場する
携帯電話に対し、外部からの自動的制御で携帯電話の動
作を停止させ、また、退場の時にはその動作を自動的に
再立ち上げすることが出来る。このため携帯電話の着信
音による他の人への迷惑などの防止が出来る。また、航
空機等にあっては携帯電話の発する移動体通信用の無線
周波数が航空機計器類に与える悪影響を防止できる。For example, for a mobile phone entering an area where it is desired to prohibit the use of mobile communication mobile phones such as at a concert hall or in an airplane, the operation of the mobile phone is stopped by automatic control from the outside. , When you leave, you can automatically restart the action. Therefore, it is possible to prevent annoyance to other people due to the ring tone of the mobile phone. In addition, in an aircraft or the like, it is possible to prevent the radio frequency for mobile communication emitted by a mobile phone from adversely affecting aircraft instruments.
【００２５】逆に限られたエリア内だけで通信可能な移
動体通信システムにあっては、無線送受信機が該エリア
内にある時だけ、その動作を可能とすることが出来るた
め、該無線送受信機の消費電力節減が可能になるととも
に、該エリア外において不要な電波を発射することがな
いという利点がある。On the contrary, in a mobile communication system capable of communicating only within a limited area, the operation can be performed only when the wireless transceiver is within the area. There is an advantage that power consumption of the machine can be reduced and unnecessary radio waves are not emitted outside the area.
【００２６】[0026]
【発明の効果】以上述べたように本発明によれば、外部
からの自動的制御で例えば携帯電話等の無線送受信装置
の動作を停止、または再起動でき、省電力になると共
に、他への悪影響を防止できる無線送受信装置及び無線
送受信システムを提供することができる。As described above, according to the present invention, the operation of the wireless transmission / reception device such as a mobile phone can be stopped or restarted by the automatic control from the outside, which saves electric power and is A wireless transmission / reception device and a wireless transmission / reception system that can prevent adverse effects can be provided.
【図１】本発明の実施形態例を示す構成説明図である。FIG. 1 is a configuration explanatory view showing an embodiment of the present invention.
１ 地上側装置 ２ 無線装置 ３ アンテナ ４ 移動側無線送受信装置 ５ 送受信回路 ６ 電源回路 ７ アンテナ ８ 無線タグ 1 Ground equipment 2 wireless devices 3 antennas 4 Mobile radio transceiver 5 transmitter / receiver circuit 6 power circuit 7 antenna 8 wireless tag
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 5K027 AA11 BB09 BB17 CC08 GG02 5K067 AA34 AA43 BB04 DD17 EE02 EE12 EE35 HH21 HH23 KK00 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 5K027 AA11 BB09 BB17 CC08 GG02 5K067 AA34 AA43 BB04 DD17 EE02 EE12 EE35 HH21 HH23 KK00
Claims (2)
回路と、前記無線送受信回路に設けられたアンテナと、
前記無線送受信回路に電力を供給する電源回路とよりな
る無線送受信装置であって、 外部からの情報を含む電磁波の受信により電力が供給さ
れて電子回路が起動され、前記受信した電磁波に含まれ
る情報に従って、前記無線送受信回路及び前記電源回路
の機能、あるいは前記無線送受信回路と前記電源回路の
いずれかの機能を停止させる、または再起動させる無線
タグを有することを特徴とする無線送受信装置。1. A radio transmission / reception circuit for communication provided on a mobile body, and an antenna provided on the radio transmission / reception circuit,
A wireless transmission / reception device comprising a power supply circuit for supplying power to the wireless transmission / reception circuit, the power being supplied by the reception of an electromagnetic wave containing information from the outside to activate an electronic circuit, and the information included in the received electromagnetic wave. According to the above, there is provided a wireless transmission / reception device having a wireless tag for stopping or restarting the functions of the wireless transmission / reception circuit and the power supply circuit, or any one of the functions of the wireless transmission / reception circuit and the power supply circuit.
装置とアンテナで構成される地上側装置とよりなる無線
送受信システムであって、 地上側装置のアンテナ及び無線装置から前記無線送受信
装置が有する無線タグに対して、情報を含む電磁波を送
出することにより、前記無線送受信装置の中の送受信回
路及び電源回路の機能、あるいは無線送受信回路と電源
回路のいずれかの機能を停止させる、または再起動させ
ることを特徴とする無線送受信システム。2. A wireless transmission / reception system comprising: the wireless transmission / reception device according to claim 1; and a ground-side device including a wireless device and an antenna, wherein the wireless transmission / reception device is connected from an antenna of the ground-side device and the wireless device. By transmitting an electromagnetic wave containing information to a wireless tag that the wireless tag has, the function of the transmission / reception circuit and the power supply circuit in the wireless transmission / reception device, or the function of either the wireless transmission / reception circuit or the power supply circuit is stopped, or A wireless transmission / reception system characterized by being activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001273740A JP2003087399A (en) | 2001-09-10 | 2001-09-10 | Wireless transmitter-receiver and wireless transmission reception system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001273740A JP2003087399A (en) | 2001-09-10 | 2001-09-10 | Wireless transmitter-receiver and wireless transmission reception system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003087399A true JP2003087399A (en) | 2003-03-20 |
Family
ID=19098914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001273740A Pending JP2003087399A (en) | 2001-09-10 | 2001-09-10 | Wireless transmitter-receiver and wireless transmission reception system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003087399A (en) |
Cited By (6)
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|---|---|---|---|---|
| JP2006270871A (en) * | 2005-03-25 | 2006-10-05 | Matsushita Electric Ind Co Ltd | Equipment controlling system |
| KR100641427B1 (en) | 2005-02-16 | 2006-10-31 | 엘지전자 주식회사 | RFID system and methof for limiting use of mobile terminal |
| JP2008182685A (en) * | 2006-12-27 | 2008-08-07 | Semiconductor Energy Lab Co Ltd | Switch device and power supply control system |
| JP2009077354A (en) * | 2007-09-25 | 2009-04-09 | Panasonic Electric Works Co Ltd | Location management system |
| US7525433B2 (en) | 2004-09-21 | 2009-04-28 | Denso Corporation | Wireless communication module to be installed on vehicular license plate |
| JP2012209835A (en) * | 2011-03-30 | 2012-10-25 | Denso Wave Inc | Portable wireless tag reader |
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| JPH10200958A (en) * | 1997-01-14 | 1998-07-31 | Matsushita Electric Ind Co Ltd | Radio communication equipment |
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| JPH11249778A (en) * | 1998-02-26 | 1999-09-17 | Hitachi Ltd | Mobile object management system |
| JP2000332676A (en) * | 1999-05-19 | 2000-11-30 | Nec Shizuoka Ltd | Portable communication system and its power source disconnecting method |
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2001
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10200958A (en) * | 1997-01-14 | 1998-07-31 | Matsushita Electric Ind Co Ltd | Radio communication equipment |
| JPH10242901A (en) * | 1997-02-26 | 1998-09-11 | Hitachi Software Eng Co Ltd | Power compulsory cutting method for mobile communication equipment and mobile communication equipment |
| JPH11249778A (en) * | 1998-02-26 | 1999-09-17 | Hitachi Ltd | Mobile object management system |
| JP2000332676A (en) * | 1999-05-19 | 2000-11-30 | Nec Shizuoka Ltd | Portable communication system and its power source disconnecting method |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7525433B2 (en) | 2004-09-21 | 2009-04-28 | Denso Corporation | Wireless communication module to be installed on vehicular license plate |
| KR100641427B1 (en) | 2005-02-16 | 2006-10-31 | 엘지전자 주식회사 | RFID system and methof for limiting use of mobile terminal |
| JP2006270871A (en) * | 2005-03-25 | 2006-10-05 | Matsushita Electric Ind Co Ltd | Equipment controlling system |
| JP4633511B2 (en) * | 2005-03-25 | 2011-02-16 | パナソニック株式会社 | Equipment control system |
| JP2008182685A (en) * | 2006-12-27 | 2008-08-07 | Semiconductor Energy Lab Co Ltd | Switch device and power supply control system |
| US9100195B2 (en) | 2006-12-27 | 2015-08-04 | Semiconductor Energy Laboratory Co., Ltd. | Switch device and power supply control system |
| US9847199B2 (en) | 2006-12-27 | 2017-12-19 | Semiconductor Energy Laboratory Co., Ltd. | Switch device and power supply control system |
| US9984844B2 (en) | 2006-12-27 | 2018-05-29 | Semiconductor Energy Laboratory Co., Ltd. | Switch device and power supply control system |
| JP2009077354A (en) * | 2007-09-25 | 2009-04-09 | Panasonic Electric Works Co Ltd | Location management system |
| JP2012209835A (en) * | 2011-03-30 | 2012-10-25 | Denso Wave Inc | Portable wireless tag reader |
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| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20040511 |