JPH0461943U - - Google Patents
Info
- Publication number
- JPH0461943U JPH0461943U JP1990104605U JP10460590U JPH0461943U JP H0461943 U JPH0461943 U JP H0461943U JP 1990104605 U JP1990104605 U JP 1990104605U JP 10460590 U JP10460590 U JP 10460590U JP H0461943 U JPH0461943 U JP H0461943U
- Authority
- JP
- Japan
- Prior art keywords
- coherent mode
- signal
- voltage
- phase
- oscillation signal
- 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
- 239000013078 crystal Substances 0.000 claims description 2
- 230000001427 coherent effect Effects 0.000 claims 4
- 230000010355 oscillation Effects 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Synchronisation In Digital Transmission Systems (AREA)
- Transceivers (AREA)
Description
第１図は本考案の一実施例の構成図、第２図は
従来の位相同期型送受信機の構成図である。
１……低雑音増幅器、２……中間周波変換器、
３……中間周波増幅器、４，１１……位相検波器
、５，１２……ループフイルタ、６……電圧制御
発振器、７〜９，１４……てい倍器（又は分周器
）、１０……温度補償型の水晶発振器、１３……
切換用スイツチ、１５……変調器、１６……電力
増幅器。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional phase synchronization type transmitter/receiver. 1...Low noise amplifier, 2...Intermediate frequency converter,
3... Intermediate frequency amplifier, 4, 11... Phase detector, 5, 12... Loop filter, 6... Voltage controlled oscillator, 7-9, 14... Multiplier (or frequency divider), 10... ...Temperature compensated crystal oscillator, 13...
Changeover switch, 15...Modulator, 16...Power amplifier.
Claims (1)
して共用化される電圧制御発振器を有し、前記電
圧制御発振器の発振信号をコヒーレントモード時
には受信信号に同期した送信用搬送波信号として
使用し、ノンコヒーレントモード時には内蔵した
温度補償型水晶発振器の発振信号を前記送信搬送
波信号に同期させる発振源として使用されること
を特徴とする位相同期型送受信機。 ２ 前記コヒーレントモードとノンコヒーレント
モードとの切り換えは受信系スケルチステータス
で制御される切換用スイツチにより行われること
を特徴とする請求項１記載の位相同期型送受信機
。[Claims for Utility Model Registration] 1. A voltage-controlled oscillator that is shared as a local oscillation signal generator for a receiver and a transmitter, and the oscillation signal of the voltage-controlled oscillator is used for transmission in synchronization with the received signal when in coherent mode. A phase-synchronized transceiver characterized in that it is used as a carrier wave signal, and in non-coherent mode, is used as an oscillation source for synchronizing the oscillation signal of a built-in temperature-compensated crystal oscillator with the transmission carrier signal. 2. The phase-synchronized transceiver according to claim 1, wherein switching between the coherent mode and the non-coherent mode is performed by a switching switch controlled by a receiving system squelch status.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990104605U JPH0461943U (en) | 1990-10-04 | 1990-10-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990104605U JPH0461943U (en) | 1990-10-04 | 1990-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0461943U true JPH0461943U (en) | 1992-05-27 |
Family
ID=31849950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990104605U Pending JPH0461943U (en) | 1990-10-04 | 1990-10-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0461943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002076981A (en) * | 2000-09-05 | 2002-03-15 | Matsushita Electric Ind Co Ltd | Communication device |
-
1990
- 1990-10-04 JP JP1990104605U patent/JPH0461943U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002076981A (en) * | 2000-09-05 | 2002-03-15 | Matsushita Electric Ind Co Ltd | Communication device |
| JP4524889B2 (en) * | 2000-09-05 | 2010-08-18 | パナソニック株式会社 | Communication device |
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