JPS5482109A - Electronic tuning type receiver - Google Patents

Electronic tuning type receiver

Info

Publication number
JPS5482109A
JPS5482109A JP14923077A JP14923077A JPS5482109A JP S5482109 A JPS5482109 A JP S5482109A JP 14923077 A JP14923077 A JP 14923077A JP 14923077 A JP14923077 A JP 14923077A JP S5482109 A JPS5482109 A JP S5482109A
Authority
JP
Japan
Prior art keywords
frequency
reception frequency
voltage
reception
variable code
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
JP14923077A
Other languages
Japanese (ja)
Other versions
JPS5823018B2 (en
Inventor
Michiaki Kurosawa
Tadashi Sakikawa
Ichiro Hondo
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP52149230A priority Critical patent/JPS5823018B2/en
Priority to DE19782853842 priority patent/DE2853842A1/en
Publication of JPS5482109A publication Critical patent/JPS5482109A/en
Publication of JPS5823018B2 publication Critical patent/JPS5823018B2/en
Expired legal-status Critical Current

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
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To ensure the automatic correction for the fluctuation caused by the reception frequency in terms of the voltage, temperature, change on standing and other factors by providing the reception frequency corrector, and thus to ensure the steady reception frequency. CONSTITUTION:Frequency variable code generator 21 is provided to channel selector 20 to select the reception frequency, along with D/A converter 22 to convert the variable code into the DC voltage and to apply the DC voltage to the tuning voltage varying element of local oscillator 13. On the other hand, the frequency of oscillator 13 is counted 33 to be stored in memory unit 41 of reception frequency corrector 40. The memory signal of unit 41 and the output signal of counter 33 under reception are compared and decided through frequency decision control circuit 42. And when the difference signal is caused, the output of circuit 42 is supplied to generator 21. Then the control is given so that the output variable code may be identical to the comparison signal.
JP52149230A 1977-12-14 1977-12-14 electronically tuned receiver Expired JPS5823018B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP52149230A JPS5823018B2 (en) 1977-12-14 1977-12-14 electronically tuned receiver
DE19782853842 DE2853842A1 (en) 1977-12-14 1978-12-13 Electronically tuned receiver with oscillator drift correction - compares output of frequency monitor with stored output at end of channel selection operation to alter code signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52149230A JPS5823018B2 (en) 1977-12-14 1977-12-14 electronically tuned receiver

Publications (2)

Publication Number Publication Date
JPS5482109A true JPS5482109A (en) 1979-06-30
JPS5823018B2 JPS5823018B2 (en) 1983-05-12

Family

ID=15470704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52149230A Expired JPS5823018B2 (en) 1977-12-14 1977-12-14 electronically tuned receiver

Country Status (1)

Country Link
JP (1) JPS5823018B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5723630U (en) * 1980-07-11 1982-02-06
JPH03117221A (en) * 1989-09-29 1991-05-20 Sanyo Electric Co Ltd Receiver of voltage synthesizer system
JPH03160826A (en) * 1989-11-17 1991-07-10 Sanyo Electric Co Ltd Receiver for voltage synthesizer system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871868A (en) * 1971-12-22 1973-09-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871868A (en) * 1971-12-22 1973-09-28

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5723630U (en) * 1980-07-11 1982-02-06
JPH03117221A (en) * 1989-09-29 1991-05-20 Sanyo Electric Co Ltd Receiver of voltage synthesizer system
JP2542930B2 (en) * 1989-09-29 1996-10-09 三洋電機株式会社 Voltage synthesizer type receiver
JPH03160826A (en) * 1989-11-17 1991-07-10 Sanyo Electric Co Ltd Receiver for voltage synthesizer system

Also Published As

Publication number Publication date
JPS5823018B2 (en) 1983-05-12

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