JPS6478038A - On-vehicle receiver - Google Patents

On-vehicle receiver

Info

Publication number
JPS6478038A
JPS6478038A JP23536087A JP23536087A JPS6478038A JP S6478038 A JPS6478038 A JP S6478038A JP 23536087 A JP23536087 A JP 23536087A JP 23536087 A JP23536087 A JP 23536087A JP S6478038 A JPS6478038 A JP S6478038A
Authority
JP
Japan
Prior art keywords
switching
control circuit
wave state
broadcasting
automatic
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
Application number
JP23536087A
Other languages
Japanese (ja)
Inventor
Yasushi Hamada
Ryozo Kamigaichi
Masumi Hashimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP23536087A priority Critical patent/JPS6478038A/en
Publication of JPS6478038A publication Critical patent/JPS6478038A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structure Of Receivers (AREA)
  • Noise Elimination (AREA)
  • Radio Transmission System (AREA)

Abstract

PURPOSE:To accurately decide a wave state and to perform an appropriate noise reduction processing by detecting the number of times of switching of an antenna within a prescribed time, and deciding it as the defect of the wave state when the number of times of switching exceeds a prescribed value. CONSTITUTION:The number of times of switching of the antenna within the prescribed time is detected by a switching number detecting means 15, and when it exceeds the prescribed value, it is decided as the defect of the wave state by a wave state decision means 16. And as the noise reduction processing, for example, a command signal to operate an automatic tone control circuit 14 and an automatic separation control circuit 13 is outputted. In such a way, broadcasting is switched from stereoscopic broadcasting to monophonic broadcasting by the operation of the automatic separation control circuit 13, and a signal after FM detection is corrected to a flat characteristic, and also, the highpass of a frequency characteristic in a low frequency amplifier circuit is attenuated by the operation of the automatic tone control circuit 14, then, the noise is reduced.
JP23536087A 1987-09-18 1987-09-18 On-vehicle receiver Pending JPS6478038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23536087A JPS6478038A (en) 1987-09-18 1987-09-18 On-vehicle receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23536087A JPS6478038A (en) 1987-09-18 1987-09-18 On-vehicle receiver

Publications (1)

Publication Number Publication Date
JPS6478038A true JPS6478038A (en) 1989-03-23

Family

ID=16984933

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23536087A Pending JPS6478038A (en) 1987-09-18 1987-09-18 On-vehicle receiver

Country Status (1)

Country Link
JP (1) JPS6478038A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013064A1 (en) * 1992-11-23 1994-06-09 Ford Motor Company Automotive radio employing multipath correction strategy based on vehicle speed

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63271415A (en) * 1987-04-30 1988-11-09 Seiko Epson Corp Liquid crystal display device
JPH01131533A (en) * 1987-08-27 1989-05-24 Asahi Glass Co Ltd Liquid crystal display element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63271415A (en) * 1987-04-30 1988-11-09 Seiko Epson Corp Liquid crystal display device
JPH01131533A (en) * 1987-08-27 1989-05-24 Asahi Glass Co Ltd Liquid crystal display element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013064A1 (en) * 1992-11-23 1994-06-09 Ford Motor Company Automotive radio employing multipath correction strategy based on vehicle speed

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