JPS60129765U - Optical transceiver device - Google Patents
Optical transceiver deviceInfo
- Publication number
- JPS60129765U JPS60129765U JP1984018180U JP1818084U JPS60129765U JP S60129765 U JPS60129765 U JP S60129765U JP 1984018180 U JP1984018180 U JP 1984018180U JP 1818084 U JP1818084 U JP 1818084U JP S60129765 U JPS60129765 U JP S60129765U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- light
- receiving
- transmitting
- peak value
- 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
Landscapes
- Optical Communication System (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は単線双方向通信に使用される発光受光素子の断
面図、第２図は同発光受光素子を用いた光送受信装置を
示す概略ブロック図、第３図は一般的にホトダイオード
の受光出力を二値化する場合に使用される波形整形回路
を示す接続図、第４図は同波形整形回路を第２図の光送
受信装置に適用した場合の同波形整形の動作を説明する
ための波形図、第５図はこの考案の実施に徒用されるピ
゛ −−クホールド回路の一例を示す接続図、第６図は
この考案の実施に使用されるピークホールド回路の他の
例を゛示す接続図である。
２１：発光受光素子、２５：送受切替回路、２
・６：駆動回路、２７：受信回路、５１・６１：ピーク
ホールド回路、５２・６２゛：ピーク値更新停止回路。
−′° わ７−
第５図 １、
１
第６図Figure 1 is a cross-sectional view of a light-emitting light-receiving element used in single-line bidirectional communication, Figure 2 is a schematic block diagram showing an optical transmitting and receiving device using the light-emitting light-receiving element, and Figure 3 is a typical photodiode light-receiving output. 4 is a connection diagram showing a waveform shaping circuit used to binarize a waveform, and FIG. 4 shows waveforms for explaining the operation of the same waveform shaping when the same waveform shaping circuit is applied to the optical transmitter/receiver shown in FIG. 5 is a connection diagram showing an example of a peak hold circuit used in implementing this invention, and FIG. 6 is a connection diagram showing another example of a peak hold circuit used in implementing this invention. It is a connection diagram. 21: Light emitting light receiving element, 25: Transmission/reception switching circuit, 2
・6: Drive circuit, 27: Receiving circuit, 51/61: Peak hold circuit, 52/62゛: Peak value update stop circuit. -'° Wa7- Figure 5 1, 1 Figure 6
Claims (1)
、前記発光部を発光させるための駆動回路と、前記受光
部で受光される信号レベルに対応し１て変化する電圧の
ピーク値を更新保持するピークホールド回路を含み、こ
のピークホールド回路のピーク値と受光レベルの比較に
基づいて受信信号を導出する受信回路と、送信モードと
受信モードを切替える送受切替回路とよりなる光送受信
装置において、 前記受信回路に、前記ピークホールド回路のピーク値更
新を停止させる更新停止回路手段を設け、前記送受切替
回路による送信モードへの切替に対応して、前記更新停
止回路手段を付勢し、”前記ピークホールド回路のピー
ク値更新を停止するようにしたことを特徴とする光送受
信装置。 、[Claims for Utility Model Registration] A light-emitting and light-receiving element in which a light-emitting part and a light-receiving part are integrally formed, a drive circuit for causing the light-emitting part to emit light, and a signal level corresponding to the signal level received by the light-receiving part. 1 includes a peak hold circuit that updates and holds the peak value of the voltage that changes, and a receiver circuit that derives a received signal based on a comparison between the peak value of this peak hold circuit and the received light level, and a transmitting/receiving circuit that switches between transmitting mode and receiving mode. In an optical transmitting/receiving device comprising a switching circuit, the receiving circuit is provided with update stopping circuit means for stopping updating of the peak value of the peak hold circuit, and the updating is performed in response to switching to a transmission mode by the transmitting/receiving switching circuit. An optical transmitting/receiving device characterized in that the stop circuit means is energized to stop updating the peak value of the peak hold circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984018180U JPS60129765U (en) | 1984-02-09 | 1984-02-09 | Optical transceiver device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984018180U JPS60129765U (en) | 1984-02-09 | 1984-02-09 | Optical transceiver device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60129765U true JPS60129765U (en) | 1985-08-30 |
Family
ID=30506571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984018180U Pending JPS60129765U (en) | 1984-02-09 | 1984-02-09 | Optical transceiver device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60129765U (en) |
-
1984
- 1984-02-09 JP JP1984018180U patent/JPS60129765U/en active Pending
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