JPS6376625A - Radio transmitter-receiver - Google Patents
Radio transmitter-receiverInfo
- Publication number
- JPS6376625A JPS6376625A JP61222999A JP22299986A JPS6376625A JP S6376625 A JPS6376625 A JP S6376625A JP 61222999 A JP61222999 A JP 61222999A JP 22299986 A JP22299986 A JP 22299986A JP S6376625 A JPS6376625 A JP S6376625A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- transmitter
- band
- basic
- frequency
- 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
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Transceivers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は無線通信機に関し、特に複数の周波数帯域にわ
たって通信を可能とした無線送受信機に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a wireless communication device, and particularly to a wireless transceiver capable of communicating over a plurality of frequency bands.
（従来技術）
従来無線通信機による移動通信に於いて、ＶＨＦ （１
５０ＭＨｚ帯） 、 ＵＨＦ （４００ＭＨｚ帯）の如
く異なる周波数帯に使用する無線機はアマチーア無線等
極一部を除き夫々異なる装置を用意するのが一般的であ
った。(Prior art) In mobile communication using conventional wireless communication devices, VHF (1
Radio equipment used for different frequency bands such as 50 MHz (50 MHz band) and UHF (400 MHz band) has generally been provided with different equipment for each, with the exception of a few such as Amateur radio.
又、上述したアマチーア無線に於ける複数帯域に対高し
うる無線機であっても、どれか一つの帯域のチャンネル
に切替えて通信するものであって同時に複数帯域にて通
信しりるものではなかった。Furthermore, even if the above-mentioned Amatea radio is capable of handling multiple bands, it only communicates by switching to a channel in one of the bands, and does not communicate in multiple bands at the same time. Ta.
近年、移動通信の必要性が高凍り無線局の数も増加の一
途をたどっているが、特に治安維持或は防災用無線通信
等に於いては多数の無線局、しかもＶＨＦ帯、ＵＨＦ帯
或はＳＨ，Ｆの如く数の異なる周波数帯の夫々に属した
多くの無線機を使用している。In recent years, the need for mobile communications has led to a steady increase in the number of radio stations, and especially for security maintenance and disaster prevention radio communications, a large number of radio stations, especially in the VHF band, UHF band, or uses many radios belonging to different frequency bands such as SH and F.
このように多数の無線機を運用する場合も従来は各々の
帯域別々に通信系統を設は互いに帯域を越えて通信を行
うことはなく、一つの移動局は一つの帯域内のチャンネ
ルのみによる通信を行っていたこと上述の通りである。Conventionally, even when operating a large number of radio devices, communication systems were set up separately for each band, and communication did not cross each other's bands, and one mobile station only communicated using channels within one band. As mentioned above, this was done.
しかしながら、上述したような治安維持或は防災関連通
信等では緊急を要することが多く夫々の帯域に属する無
線に同時に情報を伝達できうれば便利なことが多い。However, communications related to security maintenance or disaster prevention as described above often require emergency communication, and it is often convenient if information can be simultaneously transmitted over radio waves belonging to each band.
又、移動局に於いても他の移動局或は複数の基地局に対
し同時にかつ帯域を越えて通信できれば更に都合がよい
。Furthermore, it would be even more convenient if a mobile station could communicate with other mobile stations or a plurality of base stations simultaneously and across bands.
従来この要求に対しては各々帯域の通信に供供する無線
機を単に同時に運用するのが一般的であって、マイク操
作をはじめとして取扱いが不便であるばかりでなく大型
かつ高価になる欠点があった。Conventionally, in order to meet this requirement, it has been common practice to simply operate radio equipment for communication in each band at the same time, which not only is inconvenient to handle including microphone operation, but also has the drawbacks of being large and expensive. Ta.
（発明の目的）
本発明は上述した事情に鑑みて力されたものであって、
一つの装置によって複数の異なる帯域に於ける通信を同
時に又はいづれか必要のものを選択して互いに通信を行
うことを可能とした無線送受信装置を提供することを目
的とする。(Object of the invention) The present invention has been developed in view of the above-mentioned circumstances, and
It is an object of the present invention to provide a wireless transmitting/receiving device that enables communication in a plurality of different bands simultaneously or by selecting one of the necessary bands.
（発明の概要）
本発明ではこの目的を達成するために次の如く構成する
。(Summary of the Invention) In order to achieve this object, the present invention is configured as follows.
即ち、一つの基本送受信機に一つ又は複数のローカル信
号発生装置と混合回路とを備え、これらによって前記基
本送受信機の入出力信号を周波数変換して互いに異なる
周波数帯域に於いて同時に或は個別に通信を行うように
構成する。That is, one basic transceiver is equipped with one or more local signal generators and mixing circuits, and these convert the input and output signals of the basic transceiver into frequencies in different frequency bands simultaneously or individually. Configure it to communicate with.
（実施例）
以下図示した実施例に基づいて本発明の詳細な説明する
。(Example) The present invention will be described in detail below based on the illustrated example.
第１図（ａｌ（ｂｌは本発明に係かろ無線送信機及び受
信機の一実施例を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of a wireless transmitter and receiver according to the present invention.
同図（ａｌに於いて点線で囲ったブロック１は例えばＶ
ＨＦ帯の基本送信機であって、その終段電力増幅器２の
出力を空中線共用器３を介して空中線４に供給すると共
に、該終段電力増幅器２の入力の一部を導出し、ローカ
ル発振器５の出力を一つの入力とする混合回路６に入力
しこの混合出力から例えば和の周波数を通過するフィル
タ７及び第２の終段電力増幅器８を介して前記空中線共
用器３のもう一部の入力端に接続したものである。Block 1 surrounded by a dotted line in the same figure (al) is, for example, V
This is a basic transmitter for the HF band, which supplies the output of the final stage power amplifier 2 to the antenna 4 via the antenna duplexer 3, derives a part of the input of the final stage power amplifier 2, and outputs the output from the final stage power amplifier 2 to the local oscillator. The output of the antenna duplexer 3 is inputted to a mixing circuit 6 which receives the output of the antenna duplexer 3 as one input, and from this mixed output is passed through a filter 7 that passes the sum frequency, for example, and a second final stage power amplifier 8. It is connected to the input end.
伺、この図に示した実施例では説明簡単のためマイク、
及びチャンネル切替等の付属回路或はその他の制御部分
の図示は省略しである。In the example shown in this figure, a microphone,
Additional circuits such as channel switching and other control parts are not shown.
以上の構成に於いてその動作を具体的数値を用いて説明
する。The operation of the above configuration will be explained using specific numerical values.
例えば今、 ＶＩ（Ｆ帯基本的送信機１の出力周波数ｆ
１を１５０ＭＨｚ とすると該ＶＨＦ送信機の出力は空
中線共用器３を経て空中線４に供給される。一方前記Ｖ
ＨＦ基本送信機１から導出された終段電力増幅器入力信
号の一部である周波数ｆ １ （−１５０ＭＨｚ ）
なる信号は混合回路６に於いて、ローカル発振器５の
出力ｆｚ（−２５０ＭＨｚ）と混合されｆ２十ｆｔ、ｆ
ｌ、ｆ２（７）各周波数成分を生ずるが、このうち、ｆ
２＋ｆｘ（＝４ｏ。For example, now, VI (output frequency f of F-band basic transmitter 1
1 is 150 MHz, the output of the VHF transmitter is supplied to the antenna 4 via the antenna duplexer 3. On the other hand, the V
Frequency f 1 (-150MHz) which is part of the final stage power amplifier input signal derived from the HF basic transmitter 1
The signal is mixed with the output fz (-250MHz) of the local oscillator 5 in the mixing circuit 6, and the signal becomes f20ft, f
l, f2 (7) generates each frequency component, among which f
2+fx (=4o.
ＭＨｚ）のみを次段のフィルタ７によって抽出したのち
第２の電力増幅器８により所望の電力に増幅し空中線共
用器３を介して空中線４に供給する。MHz) is extracted by the filter 7 in the next stage, and then amplified to a desired power by the second power amplifier 8 and supplied to the antenna 4 via the antenna duplexer 3.
このように構成すれば基本となる一台の送信機に簡単な
ブロックを付加するのみでＶＨＦ帯とＵＨＦ帯の如く互
いに異なる帯域に於いて同時に電波を発射することがで
きる。With this configuration, radio waves can be emitted simultaneously in different bands such as the VHF band and the UHF band by simply adding a simple block to one basic transmitter.
ｍ１図（ｂ）は本発明に係かる受信機部分の一実施例を
示すブロック図であって、９は空中線。FIG. m1 (b) is a block diagram showing an embodiment of the receiver portion according to the present invention, and 9 is an antenna.
１０は空中線共用器で、該空中線共用器１０にて分岐し
たＶＨＦ帯の受信信号ｆ １（＝１５０ＭＨ２）を加算
器１１を介して基本受信機ＶＨＦ帯６一
受信部１２に、又前記空中線共用器１０の他方出力ｆあ
るＵＨＦ帯受信信号ｆ ２ （−４００ＭＨｚ）を高周
波増幅器１３．混合回路１４及びフィルタ１５を経て前
記加算器１１に入力する。伺このときの前記混合回路１
４に接続したローカル発振器１６の出力ｆｒ、ｎを２５
０ＭＨｚにすると共にフィルタ１５の選択周波数ｆｒは
ｆｔ（＝１５０ＭＨｚ）となるよう設定する。Reference numeral 10 denotes an antenna duplexer, which sends the VHF band received signal f1 (=150MH2) branched by the antenna duplexer 10 to the basic receiver VHF band 6-receiving section 12 via an adder 11; The other output f of the amplifier 10 is a UHF band received signal f 2 (-400MHz) which is sent to the high frequency amplifier 13. The signal is input to the adder 11 via a mixing circuit 14 and a filter 15. The mixed circuit 1 at the time of visit
The output fr, n of the local oscillator 16 connected to 4 is 25
0 MHz, and the selected frequency fr of the filter 15 is set to ft (=150 MHz).
このように構成すれば上述した送信部と同様基本受信機
に簡単なブロックを付加するのみで同時に複数の帯域の
受信を行うことができる。With this configuration, it is possible to simultaneously receive a plurality of bands by simply adding a simple block to the basic receiver, similar to the transmitter described above.
同、第１図（ｂ）に示した受信機に於いてＶＨＦ帯のｆ
ｌとＵＨＦ帯のｆ２が同時に着信するとＶ ＨＦ帯基本
受信機１２にはＶＨＦｆｔは直接、υＨＦｆ２はｆｌに
周波数変換され同時に２つの近似周波数信号が入力する
こととなって両者のビートが生ずると共に受信信号のエ
ネルギ帯域が広がる結果同時に両方の信号を正常に復調
できない欠点があるが、この場合は通話によっていづれ
か一方のみ送信するよう伝達して重送を防止するように
運用を工夫すれば支障をきたさないであろう。Similarly, in the receiver shown in Fig. 1(b), f of the VHF band is
When 1 and f2 of the UHF band arrive at the same time, VHFft is directly input to the VHF band basic receiver 12, and υHFf2 is frequency-converted to fl, and two approximate frequency signals are input at the same time, and a beat is generated for both, and the signal is received. As the energy band of the signal expands, there is a drawback that both signals cannot be properly demodulated at the same time, but in this case, if the operation is devised to prevent double sending by transmitting only one of the signals through a telephone call, this problem can be resolved. Probably not.
或は、この欠点を除去するためにＵ Ｉ−Ｉ Ｆ又はＶ
ＨＦいづれか一方に優先権を付して９重送された場合い
づれか一方の信号が基本受信機に入力を３のを阻止する
よう構成してもよく、この手段としては例えばＵＨＦ、
ＶＨＦ ともに中間周波増幅部を備え夫々のリミッタ
電流の存在を監視して所要のスイッチを操作せしめれば
よいであろう。Alternatively, U I-I F or V to eliminate this drawback
It may be configured to give priority to one of the HF signals and to block the input of either one of the signals to the basic receiver when 9 signals are transmitted. Examples of this means include, for example, UHF,
It would be good if both VHF and VHF were provided with an intermediate frequency amplification section to monitor the presence of each limiter current and operate the required switches.
以上の実施例では送受信機を別々のものとして説明した
が２本発明の実施にあたってはこれらに限定する必要は
なく互いに共用しうる部分は一つにして回路の簡略化を
はかることができる。In the above embodiments, the transmitter/receiver is described as being separate, but in implementing the present invention, there is no need to be limited to these, and parts that can be shared with each other can be combined into one to simplify the circuit.
例えば、空中線の他ローカル発振器は送受信共用にでき
る。又、該ローカル発振器の出力周波数を切替えれば多
チャンネル化が可能であろうし、ＶＨＦ帯或いはＵＨＦ
帯のいづれか一方のみを選択的に動作させること、更に
は前記２つの帯域のみならずその他の帯域の通信を可能
としたもの等種々の変形例が考えられる。For example, in addition to the antenna, a local oscillator can be used for both transmission and reception. In addition, by switching the output frequency of the local oscillator, it will be possible to create multiple channels.
Various modifications are conceivable, such as selectively operating only one of the bands, and further making it possible to communicate not only in the two bands but also in other bands.
又、近年複数帯域にて使用可能な空中線も考案されてお
り本発明の実施にあたっては便利である。Furthermore, in recent years, antennas that can be used in multiple bands have been devised and are convenient for implementing the present invention.
（発明の効果）
本発明は以上説明した如く構成するものであるから簡単
な構成によって異なる複数の帯域に於ける同時又は個別
の通信を可能とするうえで効果がある。(Effects of the Invention) Since the present invention is configured as described above, it is effective in enabling simultaneous or individual communication in a plurality of different bands with a simple configuration.
第１図（ａｌ及び（ｂｌは夫々本発明に係かる無線送受
信機の送信機及び受信機の一実施例を示すブロック図で
ある。
１・・・・・・・・・基本送信機、 ５及び１６・
・・・・・・・・ローカル発振器、 ６及び１４・
・・・・・・・・混合器、 ７及び１５・−・・・
・・・・フィルタ。
１２・・・・・・・・・基本受信機。
特許出願人 東洋通信機株式会社
（ｔｏ）
第 １ 図FIG. 1 (al and (bl) are block diagrams showing an embodiment of a transmitter and a receiver, respectively, of a wireless transceiver according to the present invention. 1... Basic transmitter, 5 and 16・
...Local oscillator, 6 and 14.
......Mixer, 7 and 15...
····filter. 12... Basic receiver. Patent applicant: Toyo Tsushinki Co., Ltd. (TO) Figure 1
Claims (2)
方のチャンネルにて同時に又は任意に選択したチャンネ
ルに於いて通信を可能とする送受信装置に於いて、前記
複数の帯域のうちいづれか一つの周波数帯域に共する送
受信機を基本送受信機とし、これにローカル信号導出手
段と、該ローカル信号と前記基本送受信機の入出力信号
とを混合する手段とこの混合した信号のうちから所望の
信号のみを抽出するフィルタ手段とを備え、前記基本送
受信機による通信の他前記フィルタ手段によって抽出し
た帯域の通信をも可能ならしめたことを特徴とする無線
送受信装置。(1) In a transmitting/receiving device that enables communication on both channels of a plurality of different bands such as the VHF band and the UHF band at the same time or on an arbitrarily selected channel, one of the plurality of bands may be used. A transceiver that shares the same frequency band as a basic transceiver is provided with a local signal deriving means, a means for mixing the local signal with an input/output signal of the basic transceiver, and a desired signal from among the mixed signals. 1. A wireless transmitting/receiving device comprising: a filter means for extracting a frequency band, and is capable of communication in the band extracted by the filter means in addition to communication by the basic transmitter/receiver.
機の送信機終段電力増幅器の入力信号の一部を導出しこ
の信号と前記ローカル信号とを前記混合手段によって混
合すると共に該混合信号を前記フィルタ手段を介して第
２の終段電力増幅器に入力するよう構成されたものであ
ることを特徴とする特許請求の範囲第１項記載の無線送
受信装置。(2) The transmitter of the wireless transmitter/receiver derives a part of the input signal of the transmitter final stage power amplifier of the basic transmitter/receiver, mixes this signal with the local signal by the mixing means, and generates the mixed signal. 2. The wireless transmitting/receiving device according to claim 1, wherein the wireless transmitting/receiving device is configured to input the received signal to the second final stage power amplifier via the filter means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61222999A JPS6376625A (en) | 1986-09-19 | 1986-09-19 | Radio transmitter-receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61222999A JPS6376625A (en) | 1986-09-19 | 1986-09-19 | Radio transmitter-receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6376625A true JPS6376625A (en) | 1988-04-06 |
Family
ID=16791230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61222999A Pending JPS6376625A (en) | 1986-09-19 | 1986-09-19 | Radio transmitter-receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6376625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564076A (en) * | 1993-06-25 | 1996-10-08 | Alcatel Mobile Communication France | Portable digital signal transceiver providing communication via a terrestrial network and via a satellite network |
-
1986
- 1986-09-19 JP JP61222999A patent/JPS6376625A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564076A (en) * | 1993-06-25 | 1996-10-08 | Alcatel Mobile Communication France | Portable digital signal transceiver providing communication via a terrestrial network and via a satellite network |
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