[go: up one dir, main page]

JPS55159618A - Receiving method of electronic tuning type and its unit - Google Patents

Receiving method of electronic tuning type and its unit

Info

Publication number
JPS55159618A
JPS55159618A JP6916179A JP6916179A JPS55159618A JP S55159618 A JPS55159618 A JP S55159618A JP 6916179 A JP6916179 A JP 6916179A JP 6916179 A JP6916179 A JP 6916179A JP S55159618 A JPS55159618 A JP S55159618A
Authority
JP
Japan
Prior art keywords
circuit
signal
amplifier
mischannel
sharpness
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
JP6916179A
Other languages
Japanese (ja)
Other versions
JPS5941604B2 (en
Inventor
Hideo Mitsui
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 JP6916179A priority Critical patent/JPS5941604B2/en
Publication of JPS55159618A publication Critical patent/JPS55159618A/en
Publication of JPS5941604B2 publication Critical patent/JPS5941604B2/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

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To avoid mischannel selection even with faster channel operation speed, by lowering the sharpness of tuning circuit than that listening of signal during channel selective operation only. CONSTITUTION:During channel selective operation for automatically and manually broadcast signal wave, a driving circuit 13 is operated and the tuning circuit sharpness Q including a high frequency amplifying circuit 12 and an intermediate frequency amplifier 14 is made lower than listening the signal. When the variable gain circuit is at a maximum gain, the level appeared at the output point B of the amplifier 14 is varied. But, in this case, since the Q of tuning circuit including the circuits 12 and the amplifier 14 is made lower, the level change at the instance of channel change-over is less. Accordingly, the leading of the AGC voltage of the gain control time constant circuit 11 including the detection circuit is made faster. That is, the circuit 11 including the detection circuit can be followed and the mischannel selection due to the saturation of the signal circuit can be avoided.
JP6916179A 1979-05-30 1979-05-30 electronic tuning receiver Expired JPS5941604B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6916179A JPS5941604B2 (en) 1979-05-30 1979-05-30 electronic tuning receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6916179A JPS5941604B2 (en) 1979-05-30 1979-05-30 electronic tuning receiver

Publications (2)

Publication Number Publication Date
JPS55159618A true JPS55159618A (en) 1980-12-11
JPS5941604B2 JPS5941604B2 (en) 1984-10-08

Family

ID=13394688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6916179A Expired JPS5941604B2 (en) 1979-05-30 1979-05-30 electronic tuning receiver

Country Status (1)

Country Link
JP (1) JPS5941604B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991001592A1 (en) * 1989-07-15 1991-02-07 Philips Japan, Ltd. Automatic gain control circuit
US5613230A (en) * 1995-06-09 1997-03-18 Ford Motor Company AM receiver search tuning with adaptive control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991001592A1 (en) * 1989-07-15 1991-02-07 Philips Japan, Ltd. Automatic gain control circuit
US5263187A (en) * 1989-07-15 1993-11-16 U.S. Philips Corporation Automatic gain control circuit
US5613230A (en) * 1995-06-09 1997-03-18 Ford Motor Company AM receiver search tuning with adaptive control

Also Published As

Publication number Publication date
JPS5941604B2 (en) 1984-10-08

Similar Documents

Publication Publication Date Title
JPS55159618A (en) Receiving method of electronic tuning type and its unit
GB1528284A (en) Radio receivers
JPS54140442A (en) Automatic sensitivity control circuit for receiver
JPS55159619A (en) Receiving method of electronic tuning type and its unit
JPS5362916A (en) Am tuner circuit
JPS54152414A (en) Squelch system of fm mobile radio equipment
JPS5669907A (en) Linear amplifier
JPS5530300A (en) Gain control circuit
JPS56131215A (en) Tuner
JPS56158529A (en) Receiver
SE8104323L (en) RADIORECEIVER
JPS5715537A (en) Automatic frequency band adjusting circuit
JPS5647122A (en) Automatic channel selector
JPS55114040A (en) Muting circuit for fm radio receiver
JPS5564409A (en) Agc circuit of receiver
JPS56132009A (en) Tone control device
JPS5723331A (en) Radio equipment
JPS5478059A (en) Gain control circuit
JPS55109011A (en) Automatic gain control circuit
JPS57150240A (en) Diversity receiving device
JPS5745708A (en) Amplifying circuit
JPS5758410A (en) Agc circuit device
JPS5336450A (en) Gain control circuit
JPS56149896A (en) Driving circuit of speaker
JPS57201345A (en) Radio receiver