JPS6032852U - FSK method demodulator - Google Patents
FSK method demodulatorInfo
- Publication number
- JPS6032852U JPS6032852U JP12526183U JP12526183U JPS6032852U JP S6032852 U JPS6032852 U JP S6032852U JP 12526183 U JP12526183 U JP 12526183U JP 12526183 U JP12526183 U JP 12526183U JP S6032852 U JPS6032852 U JP S6032852U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- output
- oscillator
- switch
- types
- 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)
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図および第２図はそれぞれこの考案のＦＳ
−に方式復調器の一実施例のブロック図および機器前面
パネルの一部正面図、第３図はこの考案の他の実施例の
一部のブロック図である。
Ａ、 Ｂ・・・周波数フィルター回路、ＶＦＯｌ・・・
出力可変発振器、ＶＦＯ２・・・出力固定発振器、１・
・・ボリウム、ＳＷ・・・スイッチ。Figures 1 and 2 are the FS of this invention, respectively.
FIG. 3 is a block diagram of one embodiment of the demodulator and a front view of a portion of the front panel of the device. FIG. 3 is a block diagram of a portion of another embodiment of the invention. A, B...Frequency filter circuit, VFOl...
Variable output oscillator, VFO2...Fixed output oscillator, 1.
...Volume, SW...switch.
Claims (3)
て伝送された搬送波からマーク波およびスペース波をそ
れぞれ検出する２種の周波数フィルター回路を備えたＦ
ＳＫ方式復調器において、前記２種のうち少なくとも一
方の周波数フィルター回路に、局部発振周波数を特定周
波数と任意に可変可能な周波数とに切換えるスイッチを
設けたことを特徴とするＦＳＫ方式復調器。(1) F equipped with two types of frequency filter circuits that detect mark waves and space waves from carrier waves that are converted into two types of frequencies and transmitted in response to digital signals.
An FSK method demodulator, characterized in that at least one of the two types of frequency filter circuits is provided with a switch for switching the local oscillation frequency between a specific frequency and an arbitrarily variable frequency.
力周波数を任意に可変可能な出力可変発振器とを具備す
るとともに、前記両光振器の各出力を切換えて局部発振
周波数として出力するスイッチを備えて成ることを特徴
とする実用新案登録請求の範囲第１項に記載のＦＳＫ方
式復調器。(2) Equipped with a fixed output oscillator that outputs only a specific frequency signal and a variable output oscillator whose output frequency can be arbitrarily varied, and a switch that switches each output of the two optical oscillators and outputs it as a local oscillation frequency. An FSK demodulator according to claim 1, characterized in that the FSK demodulator comprises:
に設定する固定抵抗と前記発振器の出力周波数を任意に
設定するボリウムとを切換え接続するスイッチを設けて
成ることを特徴とする実用新案登録請求の範囲第１項に
記載のＦＳＫ方式復調器。(3) Registration of a utility model characterized in that a local oscillator is provided with a switch that switches and connects a fixed resistor that sets the output of the oscillator to a specific frequency and a volume that arbitrarily sets the output frequency of the oscillator. An FSK demodulator according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12526183U JPS6032852U (en) | 1983-08-11 | 1983-08-11 | FSK method demodulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12526183U JPS6032852U (en) | 1983-08-11 | 1983-08-11 | FSK method demodulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6032852U true JPS6032852U (en) | 1985-03-06 |
Family
ID=30285258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12526183U Pending JPS6032852U (en) | 1983-08-11 | 1983-08-11 | FSK method demodulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032852U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS508905A (en) * | 1973-06-02 | 1975-01-29 |
-
1983
- 1983-08-11 JP JP12526183U patent/JPS6032852U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS508905A (en) * | 1973-06-02 | 1975-01-29 |
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