JPH0454U - - Google Patents
Info
- Publication number
- JPH0454U JPH0454U JP3955790U JP3955790U JPH0454U JP H0454 U JPH0454 U JP H0454U JP 3955790 U JP3955790 U JP 3955790U JP 3955790 U JP3955790 U JP 3955790U JP H0454 U JPH0454 U JP H0454U
- Authority
- JP
- Japan
- Prior art keywords
- electronic device
- active element
- battery
- drain
- collector
- 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
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Calculators And Similar Devices (AREA)
Description
第１図は本考案の電池駆動型電子機器の通信イ
ンタフエース装置の一実施例を示すブロツク回路
図、第２図は本考案の他の実施例を示す要部ブロ
ツク回路図、第３図は電池駆動型電子機器の一例
としての電子手帳と外部電子機器としてのパソコ
ンとの接続形態を示す概略図、第４図は従来の通
信インタフエース装置の概略を示すブロツク回路
図である。
１……電池駆動型電子機器（電子手帳）、３…
…伝送ライン（伝送ケーブル）、５……外部電子
機器（パソコン）、７……ゲート回路、Ｉ……イ
ンバータ、Ｒ……負荷抵抗、Ｔｒ１〜Ｔｒ４……
能動素子（ＣＭＯＳ型、バイポーラ型トランジス
タ）。
FIG. 1 is a block circuit diagram showing one embodiment of a communication interface device for battery-powered electronic equipment according to the present invention, FIG. 2 is a block circuit diagram of main parts showing another embodiment of the present invention, and FIG. FIG. 4 is a schematic diagram showing a connection form between an electronic notebook as an example of a battery-powered electronic device and a personal computer as an external electronic device. FIG. 4 is a block circuit diagram showing an outline of a conventional communication interface device. 1...Battery-powered electronic device (electronic notebook), 3...
...Transmission line (transmission cable), 5...External electronic equipment (computer), 7...Gate circuit, I...Inverter, R...Load resistance, Tr1 to Tr4...
Active element (CMOS type, bipolar type transistor).
Claims (1)
用能動素子がオープンドレイン又はオープンコレ
クタ構成となつており、 前記能動素子のドレイン又はコレクタは、前記
電池駆動型電子機器に接続される外部電子機器に
伝送ラインを介して接続されるとともに、前記外
部電子機器の入力側で前記伝送ラインに接続され
た負荷抵抗を介して電源が前記能動素子のドレイ
ン又はコレクタに供給されてなることを特徴とす
る電池駆動型電子機器の通信インタフエース装置
。[Claims for Utility Model Registration] An active element for external output of data in a battery-powered electronic device has an open drain or open collector configuration, and the drain or collector of the active element is connected to the battery-powered electronic device. The active element is connected to an external electronic device via a transmission line, and power is supplied to the drain or collector of the active element via a load resistor connected to the transmission line on the input side of the external electronic device. A communication interface device for battery-powered electronic equipment, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3955790U JPH0454U (en) | 1990-04-16 | 1990-04-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3955790U JPH0454U (en) | 1990-04-16 | 1990-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0454U true JPH0454U (en) | 1992-01-06 |
Family
ID=31548575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3955790U Pending JPH0454U (en) | 1990-04-16 | 1990-04-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0454U (en) |
-
1990
- 1990-04-16 JP JP3955790U patent/JPH0454U/ja active Pending
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