JPH0375924A - Display terminal equipment - Google Patents
Display terminal equipmentInfo
- Publication number
- JPH0375924A JPH0375924A JP21229489A JP21229489A JPH0375924A JP H0375924 A JPH0375924 A JP H0375924A JP 21229489 A JP21229489 A JP 21229489A JP 21229489 A JP21229489 A JP 21229489A JP H0375924 A JPH0375924 A JP H0375924A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- transmitter
- receiver
- cable
- optical fiber
- 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
- 239000013307 optical fiber Substances 0.000 claims abstract description 7
- 230000003287 optical effect Effects 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Digital Computer Display Output (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はデイスプレィ端末装置に関し、特に本体制御部
で制御される表示装置を有するデイスプレィ端末装置に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a display terminal device, and more particularly to a display terminal device having a display device controlled by a main body control section.
従来のこの種デイスプレィ端末装置において本体制御部
と表示装置間の信号伝送は、第２図に示すように複数本
からなる同軸ケーブルと単線ワイヤーからなるシールド
ケーブルまたはフラットケーブル８を介して本体制御部
１からの電気信号を表示装置７まで伝送させるものであ
った。In conventional display terminal devices of this type, signal transmission between the main body control section and the display device is carried out via a shielded cable or flat cable 8 consisting of a plurality of coaxial cables and single wires, as shown in FIG. The electrical signal from 1 was transmitted to display device 7.
上述した従来の信号伝送方式は、本体制御部から出力さ
れた電気信号が同軸ケーブルや単線ワイヤーを使用した
シールドケーブルやフラットケーブルによって伝送され
るため、例えばビデオ信号（ＶＤ信号）等の高周波信号
線からノイズが漏れてしまい、そのために輻射ノイズに
よって隣接するテレビ受像機、ラジオ受信機等の電波受
信装置や微小信号を取扱うアンプ等に障害を与えていた
。In the conventional signal transmission method described above, the electrical signals output from the main body control section are transmitted by a coaxial cable, a shielded cable using a single wire, or a flat cable. The radiated noise caused interference with adjacent radio wave receiving devices such as television receivers and radio receivers, as well as amplifiers that handle minute signals.
本発明は本体制御部と表示装置との間に変調回路、トラ
ンスミッタ、レシーバおよび復調回路を備え、トランス
ミッタとレシーバとの間は電気的に絶縁された光フアイ
バーケーブルで接続することを特徴とする。The present invention is characterized in that a modulation circuit, a transmitter, a receiver, and a demodulation circuit are provided between the main body control section and the display device, and the transmitter and receiver are connected by an electrically insulated optical fiber cable.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明のナイスプレイ端末装置の回路ブロック
図である。本体制御部１から出力される直流電気信号は
変調回路２によって交流電気信号に変換され、トランス
ミッタ３の発光ダイオードによって電気信号を光信号に
変換して出力する。FIG. 1 is a circuit block diagram of the Nice Play terminal device of the present invention. A DC electric signal output from the main body control section 1 is converted into an AC electric signal by a modulation circuit 2, and a light emitting diode of a transmitter 3 converts the electric signal into an optical signal and outputs the converted signal.
そして光信号は光フアイバーケーブル４を伝送し、レシ
ーバ５の受光夕゛イオードに入力され、そこで電気信号
に変換される。復調回路６によって交流電気信号を直流
電気信号に変換し、表示装置７に入力される。The optical signal is then transmitted through the optical fiber cable 4 and input to the light receiving diode of the receiver 5, where it is converted into an electrical signal. The demodulation circuit 6 converts the AC electrical signal into a DC electrical signal, which is input to the display device 7 .
以上説明したように本発明はパーソナルコンビエータや
ワードプロセッサ等の特に高周波を取扱う表示装置にお
いて本体制御部と表示装置を結ぶケーブルを従来のシー
ルドケーフルやフラットケーブルから、変調回路、トラ
ンスミッタ、レシーバ、復調回路、トランスミッタとレ
シーバとの間を結合する光フアイバーケーブルを使用す
ることにより、ケーブルから外部へもれる輻射ノイズを
低減し、他装置への障害を防止てきるという効果がある
。As explained above, the present invention enables the cable connecting the main body control unit and the display device to be changed from the conventional shielded cable or flat cable to the modulation circuit, transmitter, receiver, demodulator, etc. By using an optical fiber cable to connect a circuit, a transmitter, and a receiver, it is possible to reduce radiation noise leaking to the outside from the cable and prevent interference with other devices.
第１図は本発明のデイスプレィ端末装置の回路ブロック
図である。第２図は従来装置の回路フロック図である。
１・・・本体制御部、２・・変調回路、３・・１〜ラン
スミツタ、４・・光フアイバーケーブル、５・レシーバ
、６・・復調回路、７・・・表示装置、８・・・シール
１〜ケーブルまたはフラットケーブル等。FIG. 1 is a circuit block diagram of a display terminal device according to the present invention. FIG. 2 is a circuit block diagram of a conventional device. DESCRIPTION OF SYMBOLS 1...Main control unit, 2...Modulation circuit, 3...1~Lance transmitter, 4...Optical fiber cable, 5...Receiver, 6...Demodulation circuit, 7...Display device, 8...Seal 1 ~ Cable or flat cable, etc.
Claims (1)
されたトランスミッタと、該トランスミッタに光ファイ
バーケーブルで接続されたレシーバと、該レシーバに接
続された復調回路と、該復調回路に接続された表示装置
とを含むことを特徴とするディスプレイ端末装置。A modulation circuit connected to the main body control unit, a transmitter connected to the modulation circuit, a receiver connected to the transmitter with an optical fiber cable, a demodulation circuit connected to the receiver, and a demodulation circuit connected to the demodulation circuit. A display terminal device comprising a display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21229489A JPH0375924A (en) | 1989-08-18 | 1989-08-18 | Display terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21229489A JPH0375924A (en) | 1989-08-18 | 1989-08-18 | Display terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0375924A true JPH0375924A (en) | 1991-03-29 |
Family
ID=16620204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21229489A Pending JPH0375924A (en) | 1989-08-18 | 1989-08-18 | Display terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0375924A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100754155B1 (en) * | 2000-08-14 | 2007-09-03 | 삼성전자주식회사 | A apparatus and method for transmitting optical signal of graphic signal |
-
1989
- 1989-08-18 JP JP21229489A patent/JPH0375924A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100754155B1 (en) * | 2000-08-14 | 2007-09-03 | 삼성전자주식회사 | A apparatus and method for transmitting optical signal of graphic signal |
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