JPS551741A - Receiver - Google Patents
ReceiverInfo
- Publication number
- JPS551741A JPS551741A JP7445378A JP7445378A JPS551741A JP S551741 A JPS551741 A JP S551741A JP 7445378 A JP7445378 A JP 7445378A JP 7445378 A JP7445378 A JP 7445378A JP S551741 A JPS551741 A JP S551741A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- selection voltage
- band
- output
- circuits
- 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
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
PURPOSE: To avoid the adverse effect on other signal processing circuits, by providig the wave shape forming circuit consisting of integration circuit or the like with the circuit producing the selection voltage selection reception band to make slow the leading and trailing of the selection voltage.
CONSTITUTION: In the reception unit providing the tuner 1 selecting the reception band with the band selection voltage, and the band selection voltage prodcuction circuit 3 producing the band selection voltage to the termainls Bu, Bv and Bs by taking the output of the selection voltage generation circuit 2 as input,the wave shape circuits 16,17 are provided between the transistors Tr 17,19 inputting the output of the band selection switches 15a to 15n of the selection voltage generating circuit 3, and the transistors 21,22 outputting the output voltage to the terminals Bu,Bv,Bs by taking the output of Tr 17,19 as input. The circuits 26,27 are constituted as integration circuit consisting of resistors and capacitors.They make slower the trailing and leading of the band selection voltage to avoid steep change of current in the power supply circuit 10 and to prevent the adverse effect on other video processing circuit 6.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7445378A JPS551741A (en) | 1978-06-19 | 1978-06-19 | Receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7445378A JPS551741A (en) | 1978-06-19 | 1978-06-19 | Receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS551741A true JPS551741A (en) | 1980-01-08 |
Family
ID=13547667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7445378A Pending JPS551741A (en) | 1978-06-19 | 1978-06-19 | Receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS551741A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59162711A (en) * | 1983-03-04 | 1984-09-13 | 株式会社東芝 | Protective relaying device |
| JPS6460222A (en) * | 1987-08-27 | 1989-03-07 | Nec Corp | Carrier relay signal noise detection |
| JPH02174516A (en) * | 1988-12-23 | 1990-07-05 | Nec Corp | Demodulation of carrier relay signal |
-
1978
- 1978-06-19 JP JP7445378A patent/JPS551741A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59162711A (en) * | 1983-03-04 | 1984-09-13 | 株式会社東芝 | Protective relaying device |
| JPS6460222A (en) * | 1987-08-27 | 1989-03-07 | Nec Corp | Carrier relay signal noise detection |
| JPH02174516A (en) * | 1988-12-23 | 1990-07-05 | Nec Corp | Demodulation of carrier relay signal |
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