JPS609340U - wireless transmitter - Google Patents
wireless transmitterInfo
- Publication number
- JPS609340U JPS609340U JP10041483U JP10041483U JPS609340U JP S609340 U JPS609340 U JP S609340U JP 10041483 U JP10041483 U JP 10041483U JP 10041483 U JP10041483 U JP 10041483U JP S609340 U JPS609340 U JP S609340U
- Authority
- JP
- Japan
- Prior art keywords
- wireless transmitter
- signal
- pcm
- frequency signal
- carrier wave
- 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
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Noise Elimination (AREA)
- Transmitters (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、従来のＦＳＫ変調方式を採用した無線送信装
置の送信部の構成を示すブロック図である。第２図は、
第１図に示した無線送信装置の送信部から発射された電
波の送信波スペクトラムの一例を示す図である。第３図
は、本考案による無線送信装置の送信部の一実施例の構
成を示すフロック図である。第４図は、第３図に示す周
波数変調器に入力されるＰＣＭベースバンド信号の包路
線を示す図である。第５図は、本考案による無線送信装
置からの送信波スペクトラムを示す図である。
１・・・・・・論理回路、２・・・・・・周波数変調器
、３１゜３２．３１’、３２’・・・自送信波スペクト
ラムのピーク値、４・・・・・・低周波信号発生器、５
・・・・・・ハイブリッド回路。FIG. 1 is a block diagram showing the configuration of a transmitter of a wireless transmitter that employs a conventional FSK modulation method. Figure 2 shows
2 is a diagram showing an example of a transmission wave spectrum of radio waves emitted from a transmitter of the wireless transmitter shown in FIG. 1. FIG. FIG. 3 is a block diagram showing the configuration of an embodiment of the transmitter section of the wireless transmitter according to the present invention. FIG. 4 is a diagram showing an envelope of a PCM baseband signal input to the frequency modulator shown in FIG. 3. FIG. 5 is a diagram showing a transmission wave spectrum from the wireless transmitter according to the present invention. 1...Logic circuit, 2...Frequency modulator, 31°32.31', 32'...Peak value of self-transmitted wave spectrum, 4...Low frequency signal generator, 5
...Hybrid circuit.
Claims (1)
る形式のＦＳＫ変調方式を採用した無線送信装置におい
て、前記ＰＣＭベースパッド信号に重畳させるための低
周波信号を発生するための低周波信号発生器と、前記低
周波信号を前記ＰＣＭベースバンド信号に重畳させるた
めのハイブリッド回路とを具備し、前記搬送波の送信周
波数を周期的に変化させることにより前記ＦＳＫ変調の
変調波スペクトラムに現れるピーク値の周波数を拡散さ
せるように構成したことを特徴とする無線送信装置。In a wireless transmitter that employs an FSK modulation method in which a carrier wave is FSK-modulated using a PCM base pad signal, a low frequency signal generator for generating a low frequency signal to be superimposed on the PCM base pad signal; and a hybrid circuit for superimposing a frequency signal on the PCM baseband signal, so as to spread the frequency of a peak value appearing in the modulated wave spectrum of the FSK modulation by periodically changing the transmission frequency of the carrier wave. A wireless transmitter characterized in that it is configured as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10041483U JPS609340U (en) | 1983-06-28 | 1983-06-28 | wireless transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10041483U JPS609340U (en) | 1983-06-28 | 1983-06-28 | wireless transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS609340U true JPS609340U (en) | 1985-01-22 |
Family
ID=30237554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10041483U Pending JPS609340U (en) | 1983-06-28 | 1983-06-28 | wireless transmitter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246753U (en) * | 1985-09-09 | 1987-03-23 |
-
1983
- 1983-06-28 JP JP10041483U patent/JPS609340U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246753U (en) * | 1985-09-09 | 1987-03-23 |
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