JPS55669A - Receiving device - Google Patents

Receiving device

Info

Publication number
JPS55669A
JPS55669A JP14806178A JP14806178A JPS55669A JP S55669 A JPS55669 A JP S55669A JP 14806178 A JP14806178 A JP 14806178A JP 14806178 A JP14806178 A JP 14806178A JP S55669 A JPS55669 A JP S55669A
Authority
JP
Japan
Prior art keywords
frequency
output
divider
channel selection
oscillator
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
JP14806178A
Other languages
Japanese (ja)
Other versions
JPS5652496B2 (en
Inventor
Osamu Hamada
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP14806178A priority Critical patent/JPS55669A/en
Publication of JPS55669A publication Critical patent/JPS55669A/en
Publication of JPS5652496B2 publication Critical patent/JPS5652496B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
    • H03J5/0281—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory

Landscapes

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

Abstract

PURPOSE:To obtain a so-called synthesizer receiver applying the frequency synthesizing technique in that the channel selection is performed by setting the oscillation frequency of the local oscillator to the prescribed value via the output of the reference oscillator. CONSTITUTION:Intermediate-frequency amplifier 2, FM demodulator 3, muting circuit 4 and stereo demodulation part 5 are connected to front end 1. Thus the right and left signals are obtained at the output terminals 5R and 5L respectively. The local oscillation frequency of front end 1 undergoes the frequency multiplication via mixer 6 and 1/4-divider 8 and is then compared with the output given from reference oscillator 11 through 1/N-divider 9 at frequency phase comparator 10. And this output is fed back to the local oscillator to carry out the channel selection. In addition, the circuit is provided to vary the division ratio of divider 9 and then detect the fact that the receivable broadcast station has been received, along with the memory which can memorize the contents of the channel selection counter.
JP14806178A 1978-11-29 1978-11-29 Receiving device Granted JPS55669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14806178A JPS55669A (en) 1978-11-29 1978-11-29 Receiving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14806178A JPS55669A (en) 1978-11-29 1978-11-29 Receiving device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP9605671A Division JPS555729B2 (en) 1971-11-29 1971-11-29

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP9589580A Division JPS56119538A (en) 1980-07-14 1980-07-14 Receiving device

Publications (2)

Publication Number Publication Date
JPS55669A true JPS55669A (en) 1980-01-07
JPS5652496B2 JPS5652496B2 (en) 1981-12-12

Family

ID=15444302

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14806178A Granted JPS55669A (en) 1978-11-29 1978-11-29 Receiving device

Country Status (1)

Country Link
JP (1) JPS55669A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898548U (en) * 1981-12-25 1983-07-05 大阪瓦斯株式会社 water heater

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58134089U (en) * 1982-03-01 1983-09-09 株式会社村田製作所 High pressure generator
JPS5976176A (en) * 1982-10-25 1984-05-01 Denki Onkyo Co Ltd High voltage generator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129368A (en) * 1974-09-05 1976-03-12 Daikin Ind Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129368A (en) * 1974-09-05 1976-03-12 Daikin Ind Ltd

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898548U (en) * 1981-12-25 1983-07-05 大阪瓦斯株式会社 water heater
JPS6227798Y2 (en) * 1981-12-25 1987-07-16

Also Published As

Publication number Publication date
JPS5652496B2 (en) 1981-12-12

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