JPS5474662A - Detector of quadrature type - Google Patents
Detector of quadrature typeInfo
- Publication number
- JPS5474662A JPS5474662A JP14235677A JP14235677A JPS5474662A JP S5474662 A JPS5474662 A JP S5474662A JP 14235677 A JP14235677 A JP 14235677A JP 14235677 A JP14235677 A JP 14235677A JP S5474662 A JPS5474662 A JP S5474662A
- Authority
- JP
- Japan
- Prior art keywords
- output terminals
- terminals
- phase
- quadrature type
- shifted
- 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
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE: To avoid detuning, by taking the phase difference between the both signals after being switched and phase- shifted as 90°, by supplying the detected signal via a pair of differential amplifying circuits which have common input terminals to the quadrature type detector circuit.
CONSTITUTION: To the quadrature type detection circuit Q-DET, via a pair of differential amplifying circuits DA12 taking the input terminal commonly, FM sigal being the detected wave is fed from different output terminals. Thus, since there is a delay corresponding to the delay between the input and output terminals 1 and 2 at the lower side to the output terminals 5 and 4, consequently the phase difference between the terminals 3 and 2 where the both signals switched and phase-shifted are appeared can correctly be matched to 90°.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14235677A JPS5474662A (en) | 1977-11-28 | 1977-11-28 | Detector of quadrature type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14235677A JPS5474662A (en) | 1977-11-28 | 1977-11-28 | Detector of quadrature type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5474662A true JPS5474662A (en) | 1979-06-14 |
Family
ID=15313462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14235677A Pending JPS5474662A (en) | 1977-11-28 | 1977-11-28 | Detector of quadrature type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5474662A (en) |
-
1977
- 1977-11-28 JP JP14235677A patent/JPS5474662A/en active Pending
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