JPH0419015U - - Google Patents
Info
- Publication number
- JPH0419015U JPH0419015U JP5917890U JP5917890U JPH0419015U JP H0419015 U JPH0419015 U JP H0419015U JP 5917890 U JP5917890 U JP 5917890U JP 5917890 U JP5917890 U JP 5917890U JP H0419015 U JPH0419015 U JP H0419015U
- Authority
- JP
- Japan
- Prior art keywords
- carrier frequency
- angle
- control voltage
- accordance
- signal level
- 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Description
第１図は本考案の第１実施例の構成を示すブロ
ツク図。第２図ａ〜ｃは本考案の第１実施例の作
用の説明に供する特性図。第３図は本考案の第２
実施例の構成を示すブロツク図。第４図は本考案
の第３実施例の構成を示すブロツク図。第５図は
従来例の構成を示すブロツク図。
１……可変利得増幅器、２……角度変調器、３
……搬送周波数制御電圧源、４……増幅器、５…
…可変容量ダイオード、６……可変減衰器、７…
…プログラマブル低周波発振器、９……マイクロ
コンピユータ、１１……Ｄ／Ａ変換器。
FIG. 1 is a block diagram showing the configuration of a first embodiment of the present invention. FIGS. 2a to 2c are characteristic diagrams for explaining the operation of the first embodiment of the present invention. Figure 3 is the second version of this invention.
FIG. 2 is a block diagram showing the configuration of an embodiment. FIG. 4 is a block diagram showing the configuration of a third embodiment of the present invention. FIG. 5 is a block diagram showing the configuration of a conventional example. 1...Variable gain amplifier, 2...Angle modulator, 3
...Carrier frequency control voltage source, 4...Amplifier, 5...
...Variable capacitance diode, 6...Variable attenuator, 7...
...Programmable low frequency oscillator, 9...Microcomputer, 11...D/A converter.
Claims (1)
される角度変調器を備えた角度変調回路において
、角度変調器に入力される変調信号レベルを搬送
周波数制御電圧に伴つて変更させる変調信号レベ
ル変更手段を備えたことを特徴とする角度変調回
路。 In an angle modulation circuit including an angle modulator in which a carrier frequency is controlled in accordance with a carrier frequency control voltage, a modulation signal level changing means for changing a modulation signal level input to the angle modulator in accordance with the carrier frequency control voltage is provided. An angle modulation circuit characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5917890U JPH0419015U (en) | 1990-06-06 | 1990-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5917890U JPH0419015U (en) | 1990-06-06 | 1990-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0419015U true JPH0419015U (en) | 1992-02-18 |
Family
ID=31585450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5917890U Pending JPH0419015U (en) | 1990-06-06 | 1990-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419015U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01109908A (en) * | 1987-10-23 | 1989-04-26 | Fujitsu Ten Ltd | Frequency shift compensation circuit |
-
1990
- 1990-06-06 JP JP5917890U patent/JPH0419015U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01109908A (en) * | 1987-10-23 | 1989-04-26 | Fujitsu Ten Ltd | Frequency shift compensation circuit |
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