JPS5510211A - Signal discrimination circuit - Google Patents
Signal discrimination circuitInfo
- Publication number
- JPS5510211A JPS5510211A JP8191478A JP8191478A JPS5510211A JP S5510211 A JPS5510211 A JP S5510211A JP 8191478 A JP8191478 A JP 8191478A JP 8191478 A JP8191478 A JP 8191478A JP S5510211 A JPS5510211 A JP S5510211A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- carrier
- inputted
- discrimination circuit
- 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.)
- Granted
Links
Landscapes
- Television Receiver Circuits (AREA)
- Selective Calling Equipment (AREA)
Abstract
PURPOSE: To allow a divider circuit to discriminate easily and definitely a signal between modulated waves of two adjacent signal frequencies.
CONSTITUTION: The 1st and 2nd signal frequencies are denoted by (f1) and (f2) respectively, and the carrier frequency is by (f0). A signal inputted to input terminal 1 is demodulated 3 to obtain signals of (f1) and (f2). The carrier signal is inputted to frequency divider 5 with divisor N which is an integer satisfying the relation of f1<f0/N<f2. In this case, the carrier is inputted not direct but by way of synchronous oscillator 8 to obtain an excellent S/N signal. The demodulated wave is discriminated from the divided carrier by frequency comparing discrimination circuit 6.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53081914A JPS5853822B2 (en) | 1978-07-07 | 1978-07-07 | signal identification circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53081914A JPS5853822B2 (en) | 1978-07-07 | 1978-07-07 | signal identification circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5510211A true JPS5510211A (en) | 1980-01-24 |
JPS5853822B2 JPS5853822B2 (en) | 1983-12-01 |
Family
ID=13759706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53081914A Expired JPS5853822B2 (en) | 1978-07-07 | 1978-07-07 | signal identification circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5853822B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5735485A (en) * | 1980-08-12 | 1982-02-26 | Mitsubishi Electric Corp | Frequency identifier |
-
1978
- 1978-07-07 JP JP53081914A patent/JPS5853822B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5735485A (en) * | 1980-08-12 | 1982-02-26 | Mitsubishi Electric Corp | Frequency identifier |
Also Published As
Publication number | Publication date |
---|---|
JPS5853822B2 (en) | 1983-12-01 |
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