JPS5619219A - Stop signal generating circuit for automatic tuning receiver - Google Patents

Stop signal generating circuit for automatic tuning receiver

Info

Publication number
JPS5619219A
JPS5619219A JP9430679A JP9430679A JPS5619219A JP S5619219 A JPS5619219 A JP S5619219A JP 9430679 A JP9430679 A JP 9430679A JP 9430679 A JP9430679 A JP 9430679A JP S5619219 A JPS5619219 A JP S5619219A
Authority
JP
Japan
Prior art keywords
level
high level
turns
voltage
terminal
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
JP9430679A
Other languages
Japanese (ja)
Other versions
JPS6046893B2 (en
Inventor
Yasuhiro Ida
Toshiyuki Nakasaki
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.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion Co Ltd
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 Clarion Co Ltd filed Critical Clarion Co Ltd
Priority to JP9430679A priority Critical patent/JPS6046893B2/en
Publication of JPS5619219A publication Critical patent/JPS5619219A/en
Publication of JPS6046893B2 publication Critical patent/JPS6046893B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To facilitate an easy adjustment of the trigger level with a simple constitution of the circuit, by generating the trigger signal which turns to a high level only in case it receives the reverse DC voltage of the antenna's input level and a low-level signal at the intermediate frequency band. CONSTITUTION:Resistance R1 decides the working start value of transistor (TR) Q1 by the antenna's input level. And TRQ1, Q2 are turned on and off respectively when DC voltage E1 of about 0.6V or more is applied to terminal I1 in order to secure a high level for the collectors of these transistors. On the other hand, applied voltage E2 of terminal I2 turns to a low level during the reception in a narrow frequency range centering on the intermediate frequency. Accordingly, if this low voltage is applied to terminal I2, the collector of TRQ3 turns to a high level along with trigger signal E0 kept at a high level. And TRQ2, Q3 have their collectors connected directly to each other. Thus signal E0 turns to a high level naturally if the base input has a high level. In such way, the adjustment of the trigger level can be facilitated with a simple constitution of the circuit.
JP9430679A 1979-07-26 1979-07-26 Stop signal generation circuit for automatic tuning receiver Expired JPS6046893B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9430679A JPS6046893B2 (en) 1979-07-26 1979-07-26 Stop signal generation circuit for automatic tuning receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9430679A JPS6046893B2 (en) 1979-07-26 1979-07-26 Stop signal generation circuit for automatic tuning receiver

Publications (2)

Publication Number Publication Date
JPS5619219A true JPS5619219A (en) 1981-02-23
JPS6046893B2 JPS6046893B2 (en) 1985-10-18

Family

ID=14106583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9430679A Expired JPS6046893B2 (en) 1979-07-26 1979-07-26 Stop signal generation circuit for automatic tuning receiver

Country Status (1)

Country Link
JP (1) JPS6046893B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0319672A (en) * 1989-06-14 1991-01-28 Yanagiya:Kk Molding method for raw sticky material of marine paste product and apparatus therefor

Also Published As

Publication number Publication date
JPS6046893B2 (en) 1985-10-18

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