JPS64884A - Receiver - Google Patents
ReceiverInfo
- Publication number
- JPS64884A JPS64884A JP15605987A JP15605987A JPS64884A JP S64884 A JPS64884 A JP S64884A JP 15605987 A JP15605987 A JP 15605987A JP 15605987 A JP15605987 A JP 15605987A JP S64884 A JPS64884 A JP S64884A
- Authority
- JP
- Japan
- Prior art keywords
- demodulator
- signal
- amplifier
- sound signal
- bpf
- 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
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
PURPOSE: To favorably display a C/N by obtaining a display signal for a carrier- to-noise ratio (C/N) by using a sound subcarrier wave, and displaying it.
CONSTITUTION: A first intermediate frequency signal SIF1 is inputted to an indoor unit 17, and is converted into a second intermediate frequency signal SIF2 by a mixer 19 through a first intermediate frequency amplifier 18, and is demodulated by an FM demodulator 25 through an amplifier 23 and an AGC 24. An FM signal SATM from the demodulator 25 is demodulated by an FM demodulator 29 through a sub-carrier wave BPF 28, and a sound signal SA is outputted through a sound signal processing circuit 30. The output signal of the FM demodulator 29 is displayed on a display unit 5 through the BPF l with a passband outside the band of the sound signal, the amplifier 2, a rectifier 3 and the amplifier 4. Then, since the BPF 1 has the passband outside the band of the sound signal, the output signal of it is a part of a triangular noise, caused by the FM demodulator 29, and this noise level is determined by the C/N of the FM sound signal SAFM, supplied to the demodulator 29.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15605987A JPS64884A (en) | 1987-06-23 | 1987-06-23 | Receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15605987A JPS64884A (en) | 1987-06-23 | 1987-06-23 | Receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01884A JPH01884A (en) | 1989-01-05 |
JPS64884A true JPS64884A (en) | 1989-01-05 |
Family
ID=15619407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15605987A Pending JPS64884A (en) | 1987-06-23 | 1987-06-23 | Receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS64884A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01175487A (en) * | 1987-12-29 | 1989-07-11 | Matsushita Electric Ind Co Ltd | Satellite television receiver picture quality display device |
JPH01274593A (en) * | 1988-04-27 | 1989-11-02 | Matsushita Electric Ind Co Ltd | Satellite broadcast receiver picture quality display device |
US5575756A (en) * | 1993-08-16 | 1996-11-19 | Olympus Optical Co., Ltd. | Endoscope apparatus |
-
1987
- 1987-06-23 JP JP15605987A patent/JPS64884A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01175487A (en) * | 1987-12-29 | 1989-07-11 | Matsushita Electric Ind Co Ltd | Satellite television receiver picture quality display device |
JPH0566078B2 (en) * | 1987-12-29 | 1993-09-21 | Matsushita Electric Ind Co Ltd | |
JPH01274593A (en) * | 1988-04-27 | 1989-11-02 | Matsushita Electric Ind Co Ltd | Satellite broadcast receiver picture quality display device |
JPH0530118B2 (en) * | 1988-04-27 | 1993-05-07 | Matsushita Electric Ind Co Ltd | |
US5575756A (en) * | 1993-08-16 | 1996-11-19 | Olympus Optical Co., Ltd. | Endoscope apparatus |
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