JPS6219810U - - Google Patents
Info
- Publication number
- JPS6219810U JPS6219810U JP11034685U JP11034685U JPS6219810U JP S6219810 U JPS6219810 U JP S6219810U JP 11034685 U JP11034685 U JP 11034685U JP 11034685 U JP11034685 U JP 11034685U JP S6219810 U JPS6219810 U JP S6219810U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- phase
- level
- leakage
- synthesizer
- 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
- 230000001629 suppression Effects 0.000 claims description 2
- 230000002194 synthesizing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Amplitude Modulation (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Description
第１図はこの考案によるキヤリア抑圧回路の実
施例を示す回路図、第２図および第３図はこの考
案の他の実施例を示す回路図、第４図は従来の位
相変調器を示す回路図、第５図は変調用ミキサの
出力にあらわれる変調信号およびキヤリア信号の
もれ出し信号の特性図である。
４……変調用ミキサ、５……局部発振器、６…
…分配器、７……レベル調整器、８……位相器、
９……合成器。なお、図中、同一符号は同一また
は相当部分を示す。
Fig. 1 is a circuit diagram showing an embodiment of the carrier suppression circuit according to this invention, Figs. 2 and 3 are circuit diagrams showing other embodiments of this invention, and Fig. 4 is a circuit showing a conventional phase modulator. 5 are characteristic diagrams of leakage signals of the modulation signal and carrier signal appearing at the output of the modulation mixer. 4...Modulation mixer, 5...Local oscillator, 6...
...Distributor, 7...Level adjuster, 8...Phase shifter,
9...Synthesizer. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
信号の一方のレベルを調整するレベル調整器と、
上記分配された信号の一方の位相を調整する位相
器と、上記レベルおよび位相が調整された信号と
変調信号とを合成する合成器とを備え、上記レベ
ル調整器と位相器とによつてキヤリア信号のミキ
サでのもれ出し信号と同レベルでかつ逆位相の信
号を作り、この信号を上記合成器でもれ出し信号
と合成することにより上記もれ出し信号を打ち消
すようにした変調器のキヤリア抑圧回路。 a distributor that distributes the carrier signal; a level adjuster that adjusts the level of one of the distributed signals;
a phase shifter for adjusting one phase of the distributed signal; and a synthesizer for synthesizing the signal whose level and phase have been adjusted and the modulation signal; A modulator carrier that cancels the leakage signal by creating a signal at the same level and opposite phase as the leakage signal in the signal mixer and combining this signal with the leakage signal in the synthesizer. suppression circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11034685U JPS6219810U (en) | 1985-07-18 | 1985-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11034685U JPS6219810U (en) | 1985-07-18 | 1985-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6219810U true JPS6219810U (en) | 1987-02-05 |
Family
ID=30989267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11034685U Pending JPS6219810U (en) | 1985-07-18 | 1985-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6219810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007006152A (en) * | 2005-06-23 | 2007-01-11 | Nec Corp | Communication device and frequency converter used for it |
-
1985
- 1985-07-18 JP JP11034685U patent/JPS6219810U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007006152A (en) * | 2005-06-23 | 2007-01-11 | Nec Corp | Communication device and frequency converter used for it |
| JP4639989B2 (en) * | 2005-06-23 | 2011-02-23 | 日本電気株式会社 | Communication device and frequency converter used therefor |
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