JPS57121328A - Radio receiver for vehicle - Google Patents
Radio receiver for vehicleInfo
- Publication number
- JPS57121328A JPS57121328A JP718281A JP718281A JPS57121328A JP S57121328 A JPS57121328 A JP S57121328A JP 718281 A JP718281 A JP 718281A JP 718281 A JP718281 A JP 718281A JP S57121328 A JPS57121328 A JP S57121328A
- Authority
- JP
- Japan
- Prior art keywords
- noise
- multipath
- signal
- output
- detected
- 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
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
Abstract
PURPOSE:To eliminate the noise only in broadcast programs which are easily affected by the multipath noise, by eliminating the multipath noise only when the separation of a stereo reproducing signal is low. CONSTITUTION:In an FM receiver, the difference between left and right channel signals eL and eR of a stereo demodulating circuit 5 is detected by a differential amplifier 11, and the output signal of the differential amplifier 11 is detected by an AM detector 12, and the detection signal is converted to a DC signal by a low-pass filter 13. The AND between the output of the filter 13 and the output of a multipath distortion detecting circuit 9 is operated to operate a high cut control circuit 10. When broadcast programs such as music programs where the multipath noise is not remarkable are received, the noise elimination due to high cut is stopped because the left and right separation degree is generally high, thus preventing the lowering of the tone quality.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP718281A JPS57121328A (en) | 1981-01-22 | 1981-01-22 | Radio receiver for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP718281A JPS57121328A (en) | 1981-01-22 | 1981-01-22 | Radio receiver for vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57121328A true JPS57121328A (en) | 1982-07-28 |
Family
ID=11658916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP718281A Pending JPS57121328A (en) | 1981-01-22 | 1981-01-22 | Radio receiver for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57121328A (en) |
-
1981
- 1981-01-22 JP JP718281A patent/JPS57121328A/en active Pending
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