JPS57206121A - Car radio - Google Patents

Car radio

Info

Publication number
JPS57206121A
JPS57206121A JP9142781A JP9142781A JPS57206121A JP S57206121 A JPS57206121 A JP S57206121A JP 9142781 A JP9142781 A JP 9142781A JP 9142781 A JP9142781 A JP 9142781A JP S57206121 A JPS57206121 A JP S57206121A
Authority
JP
Japan
Prior art keywords
station
frequency
interruption
same
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.)
Granted
Application number
JP9142781A
Other languages
Japanese (ja)
Other versions
JPS6349930B2 (en
Inventor
Yuuji Shiratani
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9142781A priority Critical patent/JPS57206121A/en
Priority to SE8203649A priority patent/SE452935B/en
Priority to DE19823222025 priority patent/DE3222025C2/en
Publication of JPS57206121A publication Critical patent/JPS57206121A/en
Publication of JPS6349930B2 publication Critical patent/JPS6349930B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0058—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means
    • H03J1/0066—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means with means for analysing the received signal strength

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To realize the automatic switching to another receiving frequency of the same braodcast station when the receiving level has a drop, by detecting an instant when the broadcast demodulated outputs are not detected at one time and deciding the same broadcast contents. CONSTITUTION:When a demodulated output detecting circuit 4 detects an interruption of the voice for a certain period, a control part 5 increases the receiving frequency of the present station by an amount equivalent to the minimum inter- station space for a data area 6a of the present station. This increased frequency is used for the receiving frequency of an inspecting station to be stored in a data area 6b of the inspecting station. Thus the probability is detected for the interruption of the demodulated output of the inspecting station which is caused at a moment when the demodulated output of the present station is interrupted. After the interruption is detected with the prescribed probability, a broadcast station having the same contents as the present station is decided. Then the frequency of the area 6a is replaced with that of the area 6b. In such a way, the automatic switching is made possible to a station having the same broadcast contents with a high receiving level.
JP9142781A 1981-06-12 1981-06-12 Car radio Granted JPS57206121A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP9142781A JPS57206121A (en) 1981-06-12 1981-06-12 Car radio
SE8203649A SE452935B (en) 1981-06-12 1982-06-11 RADIO RECEIVER FOR VEHICLES
DE19823222025 DE3222025C2 (en) 1981-06-12 1982-06-11 Radio receivers for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9142781A JPS57206121A (en) 1981-06-12 1981-06-12 Car radio

Publications (2)

Publication Number Publication Date
JPS57206121A true JPS57206121A (en) 1982-12-17
JPS6349930B2 JPS6349930B2 (en) 1988-10-06

Family

ID=14026068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9142781A Granted JPS57206121A (en) 1981-06-12 1981-06-12 Car radio

Country Status (1)

Country Link
JP (1) JPS57206121A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57207415A (en) * 1981-06-15 1982-12-20 Mitsubishi Electric Corp Radio receiver

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0350422U (en) * 1989-09-26 1991-05-16

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54137212A (en) * 1978-04-18 1979-10-24 Clarion Co Ltd Channel selection control system for synthesizer receiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54137212A (en) * 1978-04-18 1979-10-24 Clarion Co Ltd Channel selection control system for synthesizer receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57207415A (en) * 1981-06-15 1982-12-20 Mitsubishi Electric Corp Radio receiver

Also Published As

Publication number Publication date
JPS6349930B2 (en) 1988-10-06

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