RU94042785A - Detector of signals with frequency telegraphy - Google Patents
Detector of signals with frequency telegraphyInfo
- Publication number
- RU94042785A RU94042785A RU94042785/09A RU94042785A RU94042785A RU 94042785 A RU94042785 A RU 94042785A RU 94042785/09 A RU94042785/09 A RU 94042785/09A RU 94042785 A RU94042785 A RU 94042785A RU 94042785 A RU94042785 A RU 94042785A
- Authority
- RU
- Russia
- Prior art keywords
- output
- threshold device
- input
- detector
- filter
- Prior art date
Links
Landscapes
- Circuits Of Receivers In General (AREA)
- Noise Elimination (AREA)
Abstract
FIELD: radio engineering. SUBSTANCE: detector may find use in receivers of frequency telegraphy. It has intermediate frequency filter, limiter which output is connected via two branches, each incorporating channel filter and nonlinear element, to inputs of subtracter. Output of subtracter is connected through low-pass filter to input of first threshold device. Output of first threshold device is connected to computing circuit which second input is coupled to output of second threshold device. Output of intermediate frequency filter is also connected to amplifier which output is connected through third nonlinear element to band-pass filter. Output of band-pass filter is coupled through detector to input of second threshold device. EFFECT: enhanced functional reliability and stability.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94042785A RU2115250C1 (en) | 1994-12-05 | 1994-12-05 | Device for detection of signals with frequency-shift keying |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94042785A RU2115250C1 (en) | 1994-12-05 | 1994-12-05 | Device for detection of signals with frequency-shift keying |
Publications (2)
Publication Number | Publication Date |
---|---|
RU94042785A true RU94042785A (en) | 1996-10-20 |
RU2115250C1 RU2115250C1 (en) | 1998-07-10 |
Family
ID=20162892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU94042785A RU2115250C1 (en) | 1994-12-05 | 1994-12-05 | Device for detection of signals with frequency-shift keying |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2115250C1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2589360C1 (en) * | 2015-03-06 | 2016-07-10 | Федеральный научно-производственный центр акционерное общество "Научно-производственное объединение "Марс" | Method of receiving multiple frequency shift keyed digital signal |
-
1994
- 1994-12-05 RU RU94042785A patent/RU2115250C1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
RU2115250C1 (en) | 1998-07-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20091206 |