JPH0429247U - - Google Patents
Info
- Publication number
- JPH0429247U JPH0429247U JP7163690U JP7163690U JPH0429247U JP H0429247 U JPH0429247 U JP H0429247U JP 7163690 U JP7163690 U JP 7163690U JP 7163690 U JP7163690 U JP 7163690U JP H0429247 U JPH0429247 U JP H0429247U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- frequency
- transmitting
- receiving means
- intermediate 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
- 230000010355 oscillation Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Transceivers (AREA)
Description
第１図は本考案による無線通信機の第１の実施
例のブロツク図、第２図は同第２の実施例のブロ
ツク図、第３図は従来の無線通信機のブロツク図
である。
３０ａ，３０ｂ，５５ａ，５５ｂ……無線通信
機、３６ａ，３６ｂ……変調回路、３８ａ，３８
ｂ……発振回路、４２ａ，４２ｂ……アンテナ、
４６ａ，４６ｂ……周波数変調回路、５０ａ，５
０ｂ……復調回路、５６ａ，５６ｂ……発振・変
調回路。
FIG. 1 is a block diagram of a first embodiment of a radio communication device according to the present invention, FIG. 2 is a block diagram of a second embodiment of the same, and FIG. 3 is a block diagram of a conventional radio communication device. 30a, 30b, 55a, 55b...Radio communication device, 36a, 36b...Modulation circuit, 38a, 38
b...Oscillation circuit, 42a, 42b...Antenna,
46a, 46b...frequency modulation circuit, 50a, 5
0b... Demodulation circuit, 56a, 56b... Oscillation/modulation circuit.
Claims (1)
信号を変調信号で変調して変調波を生成する変調
手段を有しアンテナより上記変調波を出力する送
信手段と、上記アンテナからの受信信号を上記発
振信号によつて中間周波数信号に周波数変換する
周波数変換手段を有する受信手段とを、それぞれ
備えた第１及び第２の無線通信手段からなり、第
１及び第２の送受信手段における上記中間周波信
号の周波数を同一周波数とし、第１及び第２の送
受信手段における上記発振信号の周波数を、上記
中間周波信号の周波数だけ異ならせてなる無線通
信機。 (2) 変調信号に応じて発振信号を直接に変調す
ることによつて変調波を得て、この変調波をその
ままの周波数でまたはてい倍してアンテナより出
力する送信手段と、上記アンテナからの受信信号
を上記送信手段の出力信号によつて中間周波信号
に周波数変換する周波数変換手段を有する受信手
段とを、それぞれ備えた第１及び第２の送受信手
段からなり、第１及び第２の送受信手段における
上記中間周波信号の周波数を同一周波数とし、第
１及び第２の送受信手段における上記送信手段の
出力信号の周波数を、上記中間周波信号の周波数
だけ異ならせてなる無線通信機。 (3) 請求項２記載の無線通信機において、第１
及び第２の送受信手段の受信手段は、上記中間周
波信号を復調する復調手段を備え、この復調手段
の出力信号に上記変調信号を反転させたものを加
算する反転手段を備えたことを特徴とする無線通
信機。[Claims for Utility Model Registration] (1) Transmitting means that includes an oscillation means for generating an oscillation signal and a modulation means for generating a modulated wave by modulating the oscillation signal with a modulation signal, and outputs the modulated wave from an antenna. and receiving means having frequency conversion means for converting the frequency of a received signal from the antenna into an intermediate frequency signal using the oscillation signal, A radio communication device, wherein the frequency of the intermediate frequency signal in the second transmitting/receiving means is the same, and the frequency of the oscillation signal in the first and second transmitting/receiving means is different by the frequency of the intermediate frequency signal. (2) A transmitting means for obtaining a modulated wave by directly modulating an oscillation signal in accordance with a modulated signal, multiplying this modulated wave at the same frequency and outputting it from an antenna; and a receiving means having a frequency converting means for frequency converting a received signal into an intermediate frequency signal by the output signal of the transmitting means. The frequency of the intermediate frequency signal in the means is the same, and the frequency of the output signal of the transmitting means in the first and second transmitting/receiving means is different by the frequency of the intermediate frequency signal. (3) In the wireless communication device according to claim 2, the first
and the receiving means of the second transmitting/receiving means includes demodulating means for demodulating the intermediate frequency signal, and inverting means for adding an inverted version of the modulated signal to the output signal of the demodulating means. A wireless communication device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7163690U JPH0429247U (en) | 1990-07-04 | 1990-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7163690U JPH0429247U (en) | 1990-07-04 | 1990-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0429247U true JPH0429247U (en) | 1992-03-09 |
Family
ID=31608843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7163690U Pending JPH0429247U (en) | 1990-07-04 | 1990-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0429247U (en) |
-
1990
- 1990-07-04 JP JP7163690U patent/JPH0429247U/ja active Pending
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