JPS63248235A - Portable terminal equipment - Google Patents
Portable terminal equipmentInfo
- Publication number
- JPS63248235A JPS63248235A JP62082422A JP8242287A JPS63248235A JP S63248235 A JPS63248235 A JP S63248235A JP 62082422 A JP62082422 A JP 62082422A JP 8242287 A JP8242287 A JP 8242287A JP S63248235 A JPS63248235 A JP S63248235A
- Authority
- JP
- Japan
- Prior art keywords
- portable terminal
- resistor
- switch
- output intensity
- communication
- 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
- 230000003287 optical effect Effects 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 abstract description 11
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241000257465 Echinoidea Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、光を通信媒体とする空間伝播式光通信機能を
有する携帯型端末装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a portable terminal device having a space propagation type optical communication function using light as a communication medium.
本発明は、空間伝播式光通信機能を有する携帯型端末装
置において、光送信回路に光出力強度切換回路を付加す
ることにより、前記光送信回路の演黄゛市流を少くする
。」；うにしたものである。In a portable terminal device having a space-propagation optical communication function, the present invention adds an optical output intensity switching circuit to the optical transmitting circuit, thereby reducing the commercial use of the optical transmitting circuit. ” ; It is a sea urchin.
従来の携帯型端末装置において、光送信回路は、第２図
に示す様に、電流制限用抵抗２１、発光ダイオード２２
、および駆動用トランジスタ２３のみの単純な構成であ
った。In the conventional portable terminal device, the optical transmission circuit includes a current limiting resistor 21 and a light emitting diode 22, as shown in FIG.
, and a driving transistor 23.
光を通信媒体とする空間伝播式光通信機能を右する携帯
型端末装置の実際の通信形態には、次に示す２種類の形
１Ｆ３がある。まず第１の形態は第４図に示す様な遠距
離通信であり、前記携帯型端末装置の光送信回路におけ
る光出力強度はかなりの高出力が要求される。それに対
し、第２の形態は第５図に示す様な近接通信である。近
接通信の場合、通信に必要な先出ツノ強度は微弱なもの
で充分である。以上述べた２種類の通信形態は通常併用
されるものである。There are two types of actual communication forms of portable terminal devices that perform a space propagation type optical communication function using light as a communication medium: 1F3 as shown below. The first form is long-distance communication as shown in FIG. 4, and requires a considerably high optical output intensity in the optical transmission circuit of the portable terminal device. On the other hand, the second form is close proximity communication as shown in FIG. In the case of close-range communication, a very weak first horn strength is sufficient for communication. The two types of communication forms described above are usually used together.
前記携帯型端末装置において、従来の光送信回路では光
出力強度は遠距離通信が可能な強度に固定されているた
め近接通信時には本来必要どする電力のＦ＆１０倍の゛
電力を消費していた。In the portable terminal device, in the conventional optical transmission circuit, the optical output intensity is fixed at an intensity that allows long-distance communication, and therefore, during close-range communication, power is consumed F&10 times the power originally required.
上記問題点を解決するために、本発明は、光を通信媒体
とする空間伝播式光通信機能を有する携帯型端末装置に
おいて、送信回路に光出力強度切換回路を付加し、前記
近接通信時には光出力強度を下げるようにと。In order to solve the above-mentioned problems, the present invention adds an optical output intensity switching circuit to the transmitting circuit in a portable terminal device having a space propagation type optical communication function using light as a communication medium. I told him to lower the output intensity.
上記の様に構成された携帯型端末装置を、近接通信用中
継装置上にのせて近接通信を行う場合、前記近接通信用
中継装置側より発せられる光出力強度切換用合図（たと
えば磁気など〉にＪ：す、前記携帯型端末装置の光送信
回路に付加された光出力強度切換回路が作りＪし、前記
光送信回路の光出力強度を近接通信用に必要な強度にま
で下げる。When a portable terminal device configured as described above is placed on a relay device for close-range communication and performs close-range communication, the optical output intensity switching signal (for example, magnetic) emitted from the relay device for close-range communication is J: An optical output intensity switching circuit added to the optical transmission circuit of the portable terminal device is created to lower the optical output intensity of the optical transmission circuit to the intensity required for close-range communication.
そのため近接通信時にはムダな過大な光出力が除かれ、
低消費電力化を実現できるわｉ）である。Therefore, unnecessary excessive optical output is removed during close-range communication,
It is possible to achieve lower power consumption (i).
以下に、本発明の実施例を、図面にもとづいて説明する
。第１図において、電流制限用抵抗１１、送信用発光ダ
イオード８、駆動用トランジスタ９より構成される光送
信回路に、前記電流制限用抵抗１１に対し並列に挿入さ
れる並列抵抗１２と、前記並列抵抗１２に直列に挿入さ
れる切換用トランジスタ１０と、前記切換用トランジス
タ１０のベースと電源１３のプラス側とに接続されるス
イッチ７とより構成される光出力強度切換回路を付加し
た光送信回路を示す。ここで、スイン７は一定の磁力に
より回路を入／切する磁気スイッチである。また第３図
において、磁石５を有する近接通信用中継装置２に対し
、前記磁石５より発せられる磁力により作動する前記ス
イッチ７を有する携帯型端末装置１がセットされた状態
を示す。通信は、前記携帯型端末装置中の発光ダイオー
ド８より出力される光を、前記近接通信用中継８ｉ置中
の受光素子６が受光することにより行われる。Embodiments of the present invention will be described below based on the drawings. In FIG. 1, an optical transmitting circuit composed of a current limiting resistor 11, a transmitting light emitting diode 8, and a driving transistor 9 includes a parallel resistor 12 inserted in parallel with the current limiting resistor 11, and a parallel resistor 12 inserted in parallel with the current limiting resistor 11, and An optical transmission circuit including an optical output intensity switching circuit comprising a switching transistor 10 inserted in series with a resistor 12 and a switch 7 connected between the base of the switching transistor 10 and the positive side of a power supply 13. shows. Here, the switch 7 is a magnetic switch that turns on/off the circuit using a certain magnetic force. Further, FIG. 3 shows a state in which a portable terminal device 1 having the switch 7 operated by the magnetic force generated by the magnet 5 is set to a relay device 2 for close-range communication having a magnet 5. Communication is performed by the light receiving element 6 in the proximity communication relay 8i receiving light output from the light emitting diode 8 in the portable terminal device.
上記の様な構成による携帯型端末装置の動作を以下に示
す。第３図に示す様に、近接通信用中継装置２の上にし
かるべき方法で携帯型端末装置１がのせられると、磁石
５の磁ツノによりスイッチ７が動作する。第１図におい
て、スイッチ７が動作する（「入」状態となる）と、ト
ランジスタ１０のペースエミッタ間電圧がＯになるため
前記トランジスタ１０はカットオフされる。従って抵抗
１２には′Ｆｉ流が流れず、発光ダイオードに流れる電
流は抵抗１１を通って供給されるものだけとなる。ぞれ
に対し、前記近接通信用中継装置２がら前記携帯型端末
装置１をとりはずづと、スイッチ７は「切」状態にもど
り、トランジスタ１０はオンする。従って発光ダイオー
ド８に流れる電流は、抵抗１１の経路によるものと、ト
ランジスタ１０および抵抗１２の経路によるものとの和
となる。The operation of the portable terminal device configured as described above will be described below. As shown in FIG. 3, when the portable terminal device 1 is placed on the proximity communication relay device 2 in an appropriate manner, the switch 7 is operated by the magnetic horn of the magnet 5. In FIG. 1, when the switch 7 is operated (turned on), the pace emitter voltage of the transistor 10 becomes O, so the transistor 10 is cut off. Therefore, no 'Fi current flows through the resistor 12, and only the current supplied through the resistor 11 flows through the light emitting diode. In each case, when the portable terminal device 1 is removed from the close proximity communication relay device 2, the switch 7 returns to the "off" state and the transistor 10 turns on. Therefore, the current flowing through the light emitting diode 8 is the sum of the current flowing through the path of the resistor 11 and the current flowing through the path of the transistor 10 and the resistor 12.
一般的に、発光ダイオードの光出力強度は順方向電流値
に比例する。つまり、スイッチ７が入／切されることに
より、発光ダイオード８の光出力強度が切換わるという
光出力強度切換動作を実現したわけである。Generally, the light output intensity of a light emitting diode is proportional to the forward current value. In other words, a light output intensity switching operation is realized in which the light output intensity of the light emitting diode 8 is switched by turning on/off the switch 7.
（発明の効果〕
本発明は、以上説明した様に、光を通信媒体とする空間
伝播式光通信機能を有する携帯型端末装置において、そ
の光送信回路に光出力強度切換回路を付加したことによ
り、必要最小限の電力で近接通信を行うことができると
いう省エネルギー効果がある。(Effects of the Invention) As explained above, the present invention provides a portable terminal device having a space propagation type optical communication function using light as a communication medium, by adding an optical output intensity switching circuit to the optical transmission circuit. This has an energy-saving effect in that close-range communication can be performed with the minimum amount of power required.
第１図は、本発明の光送信回路の回路図、第２図は、従
来の光送信回路の回路図、第３図は、近接時の通信装置
の概略断面図、第４図は遠距離通信模式図、第５図は近
接通信模式図である。
１・・・携帯型端末５Ａ置
２・・・近接通信用中継装置
３・・・天井取付型遠距離通信用中継装置４・・・ホス
トコンピュータ
５・・・磁石
６・・・受光素子
７・・・スイッチ
８・・・発光ダイオード
９・・・駆動用トランジスタ
１０・・・切換用トランジスタ
１１・・・電流制限用抵抗
１２・・・並列抵抗
１３・・・電源
出願人 セイコー電子工業株式会社
第３図Fig. 1 is a circuit diagram of an optical transmission circuit of the present invention, Fig. 2 is a circuit diagram of a conventional optical transmission circuit, Fig. 3 is a schematic sectional view of a communication device in close proximity, and Fig. 4 is a long-distance communication device. Communication schematic diagram: FIG. 5 is a close proximity communication schematic diagram. 1... Portable terminal 5A placement 2... Proximity communication relay device 3... Ceiling-mounted long distance communication relay device 4... Host computer 5... Magnet 6... Light receiving element 7. ...Switch 8...Light emitting diode 9...Drive transistor 10...Switching transistor 11...Current limiting resistor 12...Parallel resistor 13...Power source Applicant: Seiko Electronics Co., Ltd. No. Figure 3
Claims (2)
る携帯型端末装置において、発光素子と駆動素子と電流
制御素子よりなる送信回路に光出力強度切換回路を付加
したことを特徴とする携帯型端末装置(1) A portable terminal device having a space propagation type optical communication function using light as a communication medium, characterized in that a light output intensity switching circuit is added to a transmitting circuit consisting of a light emitting element, a driving element, and a current control element. portable terminal device
並列に接続された並列抵抗と、 前記並列抵抗を駆動する切換用トランジスタと、前記切
換用トランジスタベースに接続され、一定の外部磁力に
より入／切される切換用スイッチとで構成される特許請
求の範囲第１項記載の携帯型端末装置。(2) The optical output intensity switching circuit includes a parallel resistor connected in parallel to the current limiting element, a switching transistor that drives the parallel resistor, and a switching transistor base, and is connected to the switching transistor base, and is controlled by a constant external magnetic force. The portable terminal device according to claim 1, comprising a changeover switch that is turned on and off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62082422A JPS63248235A (en) | 1987-04-03 | 1987-04-03 | Portable terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62082422A JPS63248235A (en) | 1987-04-03 | 1987-04-03 | Portable terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63248235A true JPS63248235A (en) | 1988-10-14 |
Family
ID=13774151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62082422A Pending JPS63248235A (en) | 1987-04-03 | 1987-04-03 | Portable terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63248235A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5175869A (en) * | 1990-08-10 | 1992-12-29 | Fujitsu Limited | Automatic data transmission system |
-
1987
- 1987-04-03 JP JP62082422A patent/JPS63248235A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5175869A (en) * | 1990-08-10 | 1992-12-29 | Fujitsu Limited | Automatic data transmission system |
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