JPH0322720A - Terminal equipment for ground mobile radio data communication - Google Patents
Terminal equipment for ground mobile radio data communicationInfo
- Publication number
- JPH0322720A JPH0322720A JP1157836A JP15783689A JPH0322720A JP H0322720 A JPH0322720 A JP H0322720A JP 1157836 A JP1157836 A JP 1157836A JP 15783689 A JP15783689 A JP 15783689A JP H0322720 A JPH0322720 A JP H0322720A
- Authority
- JP
- Japan
- Prior art keywords
- data
- lsb
- msb
- equipment
- significant bit
- 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.)
- Granted
Links
- 238000004891 communication Methods 0.000 title claims description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Communication Control (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は陸上移動無線データ通信（テレターミナル通信
）を行う端末装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a terminal device for land mobile radio data communication (teleterminal communication).
従来の技術
一般にテレターミナル通信では基本パケントの通信サー
ビスのほかに、高速ポーリングや画像通信を行うため、
無線回線で送受されるデータをファクシミリ装置や各種
情報機器に接続して多様なサービスを行うようにしてい
る。ところでこの場合、テレターミナル無線端末装置と
しては、発呼処理及び着呼処理の通信制御を行った後、
次に通信が終了して切断処理を行うまでの間、外部に接
続されるファクシミリや他の情報機器に無線で送受され
るデータを引渡す必要があり、従来はそれを未加工の状
態で引き渡している。Conventional technology In general, teleterminal communication provides high-speed polling and image communication in addition to basic packet communication services.
Data sent and received over wireless lines is connected to facsimile machines and various information devices to provide a variety of services. By the way, in this case, the teleterminal wireless terminal device performs communication control for call processing and incoming call processing, and then
Next, until the communication ends and the disconnection process is performed, it is necessary to hand over the data sent and received wirelessly to the facsimile machine and other information devices connected externally. There is.
発明が解決しようとする課題
しかしながら、未加工のデータとは言っても、一般に有
線通信で行われるデータ通信はオクテット（８ビットか
らなる情報単位）ごとにＬ Ｓ Ｂ（最下位ビット）か
ら先に送られるのが通例であるが、テレターミナルの無
線手順ではＭＳＢ （最上位ビット）から先に送るよう
定義されているので外部に接続されるファクシミリや他
の情報機器とうまくインターフェース出来ないことがあ
る。Problems to be Solved by the Invention However, even though it is raw data, data communication performed by wired communication generally transmits data from the LSB (least significant bit) first for each octet (information unit consisting of 8 bits). However, because the teleterminal's wireless protocol defines that the most significant bit (MSB) is sent first, it may not be possible to interface properly with facsimile machines or other information devices connected to the outside. .
本発明はこのような外部の情報機器に接続する場合に起
こる上記インターフエース上の欠点を除去できる優れた
テレターミナル通信用端末機器を提供することを目的と
するものである。It is an object of the present invention to provide an excellent teleterminal communication terminal device that can eliminate the above-mentioned interface defects that occur when connecting to such external information equipment.
課題を解決するための手段
本発明は上記目的を達戒するために送受されるデータを
、オクテノトごとにＬＳＢ順とＭＳＢ順の順序を入れ替
えるように構成したのである。Means for Solving the Problems In order to achieve the above object, the present invention is configured to change the order of LSB order and MSB order of transmitted and received data for each octenote.
作用
したがって、本発明によれば外部に接続する機器として
特殊なものを用いる必要がなく、通常の機器で充分にテ
レターミナル通信できるという作用を有する。Therefore, according to the present invention, there is no need to use special equipment to connect to the outside, and teleterminal communication can be carried out sufficiently with ordinary equipment.
実施例
第１図は、テレターミナル通信で用いられるデータ形式
を示している。テレターミナル基地局から送られてくる
信号は第１図（ａｌに示すように受信の同期確立のため
、ビット同期信号、フレーム同期信号の後にデータが送
られてくる。実際の符号はピント同期信号として１０１
０１０・・・・・・のようにｌとＯの繰り返し信号、フ
レーム同期信号としては５ＡＣ９ （１６進数）のよう
な１６ビットの符号が用いられている。本発明は第１図
（ｂｌに示すように、フレーム同期信号を受信した直後
から８ピットづつにデータを区切り、夫々のオクテノト
ごとのデータをＬＳＢとＭＳＢの順序を入れ替え、第１
図（ｃｌのようなデータにして外部情報機器に出力する
ものである。Embodiment FIG. 1 shows a data format used in teleterminal communication. As shown in Figure 1 (al), the signal sent from the teleterminal base station is data sent after the bit synchronization signal and frame synchronization signal in order to establish reception synchronization.The actual code is the focus synchronization signal. as 101
A 16-bit code such as 5AC9 (hexadecimal number) is used as a repeating signal of l and O such as 010, and a frame synchronization signal. As shown in FIG. 1 (bl), the present invention divides data into eight pits immediately after receiving a frame synchronization signal, changes the order of the LSB and MSB of the data for each octenote, and
It is output to an external information device as data such as (cl) shown in the figure.
次に本発明の１実施例を図面によって説明する。Next, one embodiment of the present invention will be described with reference to the drawings.
第２図は本発明のテレターミナル通信端末装置の一実施
例の概略構成図である。発着呼などの通信接続制御を制
御部４によって行った後、外部に接続された情報機器８
が設定された無線回線を用いて通信を開始する。情報機
器８から出力される送信データは、ＬＳＢ／ＭＳＢ逆準
回路（順序入れ替え回路）５によってデータの最初から
８ビットづつ区切って最上位ビットと最下位ビットの順
序が入れ替えられ、送信部２及びアンテナ１を通して送
信される。一方アンテナ１から受信されたデータは、受
信部３によって復調された後、フレーム同期検出回路７
によってフレーム同期信号の着信を待ち受け、そしてフ
レーム同期信号が検出されると直ちに、ＬＳＢ／ＭＳＢ
逆準回路６を起動し、その後に続くデータを８ビットご
とに区切った後、ＬＳＢとＭＳＢの順序入れ替えを行い
、その上で外部情報機器８に出力する。FIG. 2 is a schematic diagram of an embodiment of the teleterminal communication terminal device of the present invention. After the control unit 4 performs communication connection control such as making and receiving calls, the information equipment 8 connected to the outside
starts communication using the wireless line set up. The transmission data outputted from the information device 8 is divided into 8 bits from the beginning by the LSB/MSB inversion circuit (sequence switching circuit) 5, and the order of the most significant bit and the least significant bit is switched. transmitted through antenna 1. On the other hand, the data received from the antenna 1 is demodulated by the receiving section 3 and then the data is demodulated by the frame synchronization detection circuit 7.
waits for the frame synchronization signal to arrive, and as soon as the frame synchronization signal is detected, the LSB/MSB
After activating the inversion circuit 6 and dividing the subsequent data into 8-bit units, the LSB and MSB are rearranged and then output to the external information device 8.
発明の効果
以上説明したように、本発明のテレターミナル通信端末
装置は、無線区間での最上位ビット先順のデータストリ
ームを一般の情報機器に共通な最下位ビット先順のデー
タストリームに変換して送受信を行うので、外部に接続
する情報機器として特殊なものを用意する必要がなく、
安価に各種の通信を行うことができ、テレターミナル通
信を広く普及させるに大いに役立つという利点を有する
。Effects of the Invention As explained above, the teleterminal communication terminal device of the present invention converts a data stream in which the most significant bit is first in the wireless section into a data stream in which the least significant bit is first, which is common to general information equipment. There is no need to prepare special information equipment to connect to the outside.
It has the advantage of being able to perform various types of communications at low cost and greatly contributing to the widespread use of teleterminal communications.
第１図は陸上移動無線データ通信におけるフレーム同期
信号とオクテットごとのＬＳＢ／ＭＳＢピノト順序入れ
替えの説明図、第２図は本発明の陸上移動無線データの
端末装置における一実施例の概略構成図である。
１・・・アンテナ、２・・・送信部、３・・・受信部、
４・・・制御部、５・・・ＬＳＢ／ＭＳＢ逆順回路、６
・・・ＬＳＢ／ＭＳＢ逆順回路、７・・・フレーム同期
検出回路、８・・外部情報機器。FIG. 1 is an explanatory diagram of a frame synchronization signal and LSB/MSB Pinot order replacement for each octet in land mobile radio data communication, and FIG. 2 is a schematic configuration diagram of an embodiment of a land mobile radio data terminal device of the present invention. be. 1... Antenna, 2... Transmitting section, 3... Receiving section,
4...Control unit, 5...LSB/MSB reverse order circuit, 6
. . . LSB/MSB reverse order circuit, 7 . . . Frame synchronization detection circuit, 8 . . . External information equipment.
Claims (1)
に接続する機器に引き渡すに際し、上記データの最上位
ビットと最下位ビットの送出順序をフレーム同期信号を
検出した後８ビット毎に逆にして伝送する手段を備えた
陸上移動無線データ通信の端末装置。When passing unprocessed data sent and received over a wireless line to an external device, the transmission order of the most significant bit and least significant bit of the data is reversed every 8 bits after detecting a frame synchronization signal. land mobile radio data communications terminal equipment equipped with means for
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1157836A JPH07120974B2 (en) | 1989-06-20 | 1989-06-20 | Terminal device for land mobile wireless data communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1157836A JPH07120974B2 (en) | 1989-06-20 | 1989-06-20 | Terminal device for land mobile wireless data communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0322720A true JPH0322720A (en) | 1991-01-31 |
| JPH07120974B2 JPH07120974B2 (en) | 1995-12-20 |
Family
ID=15658401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1157836A Expired - Fee Related JPH07120974B2 (en) | 1989-06-20 | 1989-06-20 | Terminal device for land mobile wireless data communication |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07120974B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5878484A (en) * | 1992-10-08 | 1999-03-09 | Tdk Corporation | Chip-type circuit element mounting apparatus |
| US6044169A (en) * | 1995-07-12 | 2000-03-28 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for mounting electronic component |
| US6435808B1 (en) | 1993-10-06 | 2002-08-20 | Tdk Corporation | Chip-type circuit element mounting apparatus |
-
1989
- 1989-06-20 JP JP1157836A patent/JPH07120974B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5878484A (en) * | 1992-10-08 | 1999-03-09 | Tdk Corporation | Chip-type circuit element mounting apparatus |
| US6152679A (en) * | 1992-10-08 | 2000-11-28 | Tdk Corporation | Chip-type circuit element mounting apparatus |
| US6435808B1 (en) | 1993-10-06 | 2002-08-20 | Tdk Corporation | Chip-type circuit element mounting apparatus |
| US6044169A (en) * | 1995-07-12 | 2000-03-28 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for mounting electronic component |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07120974B2 (en) | 1995-12-20 |
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