JPS5684039A - Am receiver - Google Patents
Am receiverInfo
- Publication number
- JPS5684039A JPS5684039A JP16084779A JP16084779A JPS5684039A JP S5684039 A JPS5684039 A JP S5684039A JP 16084779 A JP16084779 A JP 16084779A JP 16084779 A JP16084779 A JP 16084779A JP S5684039 A JPS5684039 A JP S5684039A
- Authority
- JP
- Japan
- Prior art keywords
- band
- carrier
- amplified
- circuit
- signal
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
PURPOSE:To obtain a demodulation output by separating an AM signal wave after frequency conversion into a carrier and side-band waves, by separately amplifying the carrier and one side-band wave and then by synthesizing both of them by a detecting circuit. CONSTITUTION:A high frequency signal induced by antenna 1 is amplified by high frequency amplifying circuit 2 and mixed and synthesized with an oscillation signal, generated by local oscillating circuit 4, by mixing circuit 3, which outputs a frequency-converted carrier and side-band waves. This signal wave output is passed through band-pass filter 9 to extract only either one of two upper and lower side- band waves, which is amplified by band amplifying circuit 11. From the signal wave after frequency conversion, only the carrier is extracted by band-pass filter 10 and amplified by band amplifying circuit 12. Then, the separately amplified side- band wave and carrier are synthesized and detected by detecting circuit 13, thus obtaining demodulated low-frequency signal 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16084779A JPS5684039A (en) | 1979-12-13 | 1979-12-13 | Am receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16084779A JPS5684039A (en) | 1979-12-13 | 1979-12-13 | Am receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5684039A true JPS5684039A (en) | 1981-07-09 |
Family
ID=15723681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16084779A Pending JPS5684039A (en) | 1979-12-13 | 1979-12-13 | Am receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5684039A (en) |
-
1979
- 1979-12-13 JP JP16084779A patent/JPS5684039A/en active Pending
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