JPS5531328A - Modulator - Google Patents
ModulatorInfo
- Publication number
- JPS5531328A JPS5531328A JP10446778A JP10446778A JPS5531328A JP S5531328 A JPS5531328 A JP S5531328A JP 10446778 A JP10446778 A JP 10446778A JP 10446778 A JP10446778 A JP 10446778A JP S5531328 A JPS5531328 A JP S5531328A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- oscillator
- band
- detector
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
PURPOSE:To apply modulation to the voltage control oscillator at the frequency band by inserting the band erasion filter within the loop. CONSTITUTION:The modulator consists of the following component units: phase detector 1 to which reference frequency FR is applied; DC amplifier 2 to be connected to detector 1; low band pass filter 3 to be connected to amplifier 2; band erasion filter 5 to be connected to filter 3; and voltage control oscillator 4 each. And the output of filter 5 is connected to the input of oscillator 4, and the output of oscillator 4 is connected to detector 1. Then oscillator 4 is modulated by base band frequency FB.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10446778A JPS5531328A (en) | 1978-08-29 | 1978-08-29 | Modulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10446778A JPS5531328A (en) | 1978-08-29 | 1978-08-29 | Modulator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5531328A true JPS5531328A (en) | 1980-03-05 |
Family
ID=14381380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10446778A Pending JPS5531328A (en) | 1978-08-29 | 1978-08-29 | Modulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5531328A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60145721U (en) * | 1984-03-09 | 1985-09-27 | 日立電子株式会社 | modulation circuit |
JPS6267321A (en) * | 1985-09-18 | 1987-03-27 | Nippon Seiko Kk | Self-aligning roller bearing |
US4828404A (en) * | 1988-05-16 | 1989-05-09 | Nippon Seiko Kabushiki Kaisha | Self-aligning roller bearing |
-
1978
- 1978-08-29 JP JP10446778A patent/JPS5531328A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60145721U (en) * | 1984-03-09 | 1985-09-27 | 日立電子株式会社 | modulation circuit |
JPS6267321A (en) * | 1985-09-18 | 1987-03-27 | Nippon Seiko Kk | Self-aligning roller bearing |
US4828404A (en) * | 1988-05-16 | 1989-05-09 | Nippon Seiko Kabushiki Kaisha | Self-aligning roller bearing |
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