JPS61147634A - Radio terminal controller - Google Patents

Radio terminal controller

Info

Publication number
JPS61147634A
JPS61147634A JP59268391A JP26839184A JPS61147634A JP S61147634 A JPS61147634 A JP S61147634A JP 59268391 A JP59268391 A JP 59268391A JP 26839184 A JP26839184 A JP 26839184A JP S61147634 A JPS61147634 A JP S61147634A
Authority
JP
Japan
Prior art keywords
control circuit
data
computer
terminal
device number
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
Application number
JP59268391A
Other languages
Japanese (ja)
Inventor
Hisashi Kikuchi
尚志 菊池
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP59268391A priority Critical patent/JPS61147634A/en
Publication of JPS61147634A publication Critical patent/JPS61147634A/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Small-Scale Networks (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To connect several kinds of terminal to one computer with radio waves by constituting a system with a transmission control circuit connected to the computer and reception control circuits connected to terminals. CONSTITUTION:A computer 1 is connected to various terminals 3, 4, and 5 through a radio terminal controller 2. A transmission control circuit 6 receives a device number and data from the computer and modulated data with the carrier wave, whose frequency is varied in accordance with the device number, and transmits it. The reception control circuit 7 is connected to each of terminals (CRT3, line printer 4, and XY plotter 5). The reception control circuit receives data when the carrier wave corresponding to the device number of the terminal connected to this circuit 7 is transmitted from the transmission control circuit 6.

Description

【発明の詳細な説明】 〔発明の技術分野〕 この発明は無線で計算機から複数の端末にデータを送る
無線端末制御装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a wireless terminal control device that wirelessly transmits data from a computer to a plurality of terminals.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

最近著しい発達を示しているOA機器のひとつとして、
無線で計算機からデータを受けとる端末が登場している
。この端末により事務所内の配線をなくすことができ、
端末の位置が配線によって固定されることがなくなった
。このことにより事務所のレイアウトが自由にでき、ま
たレイアウトの変更も自由にできるようになった。した
がって事務の流れなどに従ってレイア、ウドを決めるこ
とができ、事務の効率化をはかることができる。
As one of the OA equipment that has shown remarkable development recently,
Terminals that can receive data from computers wirelessly have appeared. This terminal allows you to eliminate wiring within the office.
Terminal position is no longer fixed by wiring. This allows the office to be laid out freely, and the layout can also be changed freely. Therefore, it is possible to decide on Leia and Udo according to the flow of office work, etc., and it is possible to improve the efficiency of office work.

上述のように無線でデータを送る場合、1台の計算機は
1台の端末のみにつながっていた。しかし有線でデータ
を送る場合1台の計算機に複数の端末がつながり使用目
的に合った端末をえらぶことができる。したがって無線
の場合でも1台の計算機に複数の端末をつなぐ必要があ
る。
When transmitting data wirelessly as described above, one computer was connected to only one terminal. However, when data is sent by wire, multiple terminals can be connected to one computer, allowing the user to select the terminal that best suits the purpose of use. Therefore, even in the case of wireless communication, it is necessary to connect multiple terminals to one computer.

〔発明の目的〕[Purpose of the invention]

この発明は上述した従来の問題点を改良したもので無線
によって1台の計算機に数種類の端末をつなぐことので
きる無線端末制御装置に関する。
The present invention is an improvement over the above-mentioned conventional problems, and relates to a wireless terminal control device that can wirelessly connect several types of terminals to one computer.

〔発明の概要〕[Summary of the invention]

無線端末制御装置は計算機につながっている送信制御回
路と、端末につながっている受信制御回路からなってい
る。この送信制御回路は、計算機より送信する端末の番
号を示す機器番号を受は取り、同時に送信するデータを
受は取る。つぎに受は取った機器番号をデコードし機器
番号に応じた搬送波によってデータを変調し、無線によ
って送信する。受信制御回路は前置増巾器により送られ
て来た電波を増幅する。つぎξこ復調器によって自身の
機器番号に応じた搬送波lこよって変調されたデータの
み受は取り、受は取ったデータを端末ζこおぐる。
The wireless terminal control device consists of a transmission control circuit connected to a computer and a reception control circuit connected to the terminal. This transmission control circuit receives from the computer a device number indicating the number of the terminal to be transmitted, and at the same time receives data to be transmitted. Next, the receiver decodes the received device number, modulates the data using a carrier wave corresponding to the device number, and transmits the data wirelessly. The reception control circuit amplifies the radio waves sent by the preamplifier. Next, the ξ demodulator receives only the data modulated by the carrier wave l corresponding to its own equipment number, and the receiver transmits the received data to the terminal ζ.

〔発明の効果〕〔Effect of the invention〕

この発明により1台の計算機に複数の端末をつなぐこと
ができ、使用目的に合った端末を選ぶことができる。
According to this invention, multiple terminals can be connected to one computer, and a terminal suitable for the purpose of use can be selected.

〔発明の実施例〕[Embodiments of the invention]

第1図はこの発明の一実施例を示すブロック図である。 FIG. 1 is a block diagram showing one embodiment of the present invention.

計算機1は無線端末制御装置2を介して、CRT 3、
ラインプリンタ4、XYプロッタ5につながっている。
The computer 1 connects the CRT 3 via the wireless terminal control device 2.
It is connected to a line printer 4 and an XY plotter 5.

無線端末制御装置2内の送信制御回路6は計算機1より
機器番号とデータを受は取り、機器番号に応じて周波数
の異なる搬送波によってデータを変調し、送信する。
A transmission control circuit 6 in the wireless terminal control device 2 receives the device number and data from the computer 1, modulates the data using a carrier wave of a different frequency according to the device number, and transmits the data.

受信制御回路7は各端末(CRT3.ラインプリンタ4
.xyプロッタ5)にそれぞれ1台つながっている。送
信制御回路6から結合された端末の機器番号に応じた搬
送波が送られて来た時受信制御回路7はデータを受けと
る。
The reception control circuit 7 is connected to each terminal (CRT 3. line printer 4).
.. One of each is connected to an xy plotter 5). When a carrier wave corresponding to the equipment number of the connected terminal is sent from the transmission control circuit 6, the reception control circuit 7 receives the data.

第2図に送信制御回路6のブロック図を示す。FIG. 2 shows a block diagram of the transmission control circuit 6.

計算機1から出力されるデータはBbitの並列データ
であるから並直変換回路8によって直列データに変換さ
れる。変換されたデータは変調器9に入力される。変調
器9は搬送波発振器10によって入力されたデータを変
調する。この搬送波発振器10の発振周波数はそれぞれ
異なり、機器番号に対応している。デコーダ11は、計
算機1から機器番号を受けとりデコードする。デコーダ
11の出力によってスイッチ12を選択することにより
、機器番号正と応じた周波数で変調されたデータを電力
増巾器13#ζ入力する。この電力増巾器13の出力は
アンテナ14に接続される。
Since the data output from the computer 1 is B-bit parallel data, it is converted into serial data by the parallel-to-serial conversion circuit 8. The converted data is input to modulator 9. Modulator 9 modulates data input by carrier wave oscillator 10 . The oscillation frequencies of the carrier wave oscillators 10 are different from each other and correspond to the device numbers. The decoder 11 receives the device number from the computer 1 and decodes it. By selecting the switch 12 based on the output of the decoder 11, data modulated at a frequency corresponding to the positive device number is input to the power amplifier 13#ζ. The output of this power amplifier 13 is connected to an antenna 14.

第3図にCRT3jこ接続している受信制御回路7のブ
ロックを示す。送信制御回路6より送られて来た信号は
アンテナ14を通って前置増巾器15に入力される。前
置増巾器15ζこよって増巾された信号は復調器16に
入力される。復調器16は、受けとった信号の搬送波の
周波数が局部発振器17の発振周波数と一致した時送ら
れて来たデータを出力する。
FIG. 3 shows a block diagram of the reception control circuit 7 connected to the CRT 3j. The signal sent from the transmission control circuit 6 is input to the preamplifier 15 through the antenna 14. The signal amplified by the preamplifier 15ζ is input to the demodulator 16. The demodulator 16 outputs the sent data when the frequency of the carrier wave of the received signal matches the oscillation frequency of the local oscillator 17.

このデータは送信時に直列データに変換されているから
、直並列変換回路18によって、並列データに変換され
る。変換されたデータはCRT3に送られ、表示される
。なおCRT3以外に接続されている受信制御回路7も
同様である。
Since this data has been converted into serial data at the time of transmission, it is converted into parallel data by the serial/parallel conversion circuit 18. The converted data is sent to the CRT 3 and displayed. Note that the same applies to the reception control circuit 7 connected to other than the CRT 3.

このようにして1台の計算機1に数種類の端末をつなぐ
ことを可能にしている。
In this way, it is possible to connect several types of terminals to one computer 1.

〔発明の他の実施例〕[Other embodiments of the invention]

前記実施例では端末の数だけ変調器を有しているが、ス
イッチによって入力される搬送波を切り換えることによ
り変調器の数を減らすことができる。
In the above embodiment, there are as many modulators as there are terminals, but the number of modulators can be reduced by switching the input carrier waves using a switch.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の全体を示すブロック図、第2図は送
信制御回路のブロック図、第3図は受信制御回路のブロ
ック図である。 1−・・計算機、2・・・無線端末制御装置、3・・・
CRT、4・・・ラインプリンタ、5・・・XYプロッ
タ、6・・・送信制御回路、7・・・受信制御回路、9
・・・変調器、10・・・搬送波発振器、11・・・デ
コーダ、12・・・スイッチ、16・・・復調器、17
・・・局部発振器。
FIG. 1 is a block diagram showing the overall structure of the invention, FIG. 2 is a block diagram of a transmission control circuit, and FIG. 3 is a block diagram of a reception control circuit. 1-...Computer, 2...Wireless terminal control device, 3...
CRT, 4... Line printer, 5... XY plotter, 6... Transmission control circuit, 7... Reception control circuit, 9
... Modulator, 10 ... Carrier wave oscillator, 11 ... Decoder, 12 ... Switch, 16 ... Demodulator, 17
...Local oscillator.

Claims (1)

【特許請求の範囲】[Claims] 端末に送るデータを計算機から受けとる手段と、端末の
機器番号を受けとる手段と、複数の搬送波を発振する手
段と、受けとった機器番号によって搬送波を選択する手
段と、前記搬送波によってデータを変調する手段と、変
調されたデータを無線送信する手段からなる送信制御回
路と、前記回路から送信された電波を受けとる手段と結
合している端末の機器番号に応じた搬送波によって変調
されたデータを受信する手段と、結合している端末に受
信したデータを送る手段からなる受信制御回路を具備し
たことを特徴とする無線端末制御装置。
means for receiving data to be sent to a terminal from a computer, means for receiving a device number of the terminal, means for oscillating a plurality of carrier waves, means for selecting a carrier wave according to the received device number, and means for modulating data with the carrier wave. , a transmission control circuit comprising means for wirelessly transmitting modulated data, and means for receiving data modulated by a carrier wave corresponding to a device number of a terminal coupled to the means for receiving radio waves transmitted from the circuit. A wireless terminal control device comprising: a reception control circuit comprising means for transmitting received data to a connected terminal.
JP59268391A 1984-12-21 1984-12-21 Radio terminal controller Pending JPS61147634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59268391A JPS61147634A (en) 1984-12-21 1984-12-21 Radio terminal controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59268391A JPS61147634A (en) 1984-12-21 1984-12-21 Radio terminal controller

Publications (1)

Publication Number Publication Date
JPS61147634A true JPS61147634A (en) 1986-07-05

Family

ID=17457819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59268391A Pending JPS61147634A (en) 1984-12-21 1984-12-21 Radio terminal controller

Country Status (1)

Country Link
JP (1) JPS61147634A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02162066A (en) * 1988-08-12 1990-06-21 Esselte Meto Internatl Gmbh Printer
JPH04153814A (en) * 1990-10-18 1992-05-27 Kubota Corp Radio data transmission equipment
JP2010130503A (en) * 2008-11-28 2010-06-10 Nec Corp Radio communication device, method of controlling communication of the same, and information processing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02162066A (en) * 1988-08-12 1990-06-21 Esselte Meto Internatl Gmbh Printer
JPH04153814A (en) * 1990-10-18 1992-05-27 Kubota Corp Radio data transmission equipment
JP2010130503A (en) * 2008-11-28 2010-06-10 Nec Corp Radio communication device, method of controlling communication of the same, and information processing system

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