JPS5570140A - Receiving device - Google Patents

Receiving device

Info

Publication number
JPS5570140A
JPS5570140A JP14376178A JP14376178A JPS5570140A JP S5570140 A JPS5570140 A JP S5570140A JP 14376178 A JP14376178 A JP 14376178A JP 14376178 A JP14376178 A JP 14376178A JP S5570140 A JPS5570140 A JP S5570140A
Authority
JP
Japan
Prior art keywords
tuning
devices
frequency
reading
reception frequency
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
JP14376178A
Other languages
Japanese (ja)
Other versions
JPS5953725B2 (en
Inventor
Hiroshi Yasuda
Yoshio Osakabe
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 JP53143761A priority Critical patent/JPS5953725B2/en
Publication of JPS5570140A publication Critical patent/JPS5570140A/en
Publication of JPS5953725B2 publication Critical patent/JPS5953725B2/en
Expired 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 secure setting for the frequency of the tuning means to the subsequent frequency by providing the means to hold the selective switching under writing or reading to the device which gives the selective switching to the memory device via the operating switch and then securing the tuning via the frequency read out from the memory device through the tuning means. CONSTITUTION:The following units are provided: memory devices 16 and 17 containing reception frequency memory parts 16a and 17a to memorize the reception frequency; operation means 59 to select devices 16 and 17; programmable divider 11 to secure the tuning for the reception frequency; and tuning means 80 consisting of division ratio setting register 15 respectively. In addition, holding means 75 is installed to hold the selective switching to devices 16 and 17 until the end of the writing or reading of devices 16 and 17 under writing or reading when the switching is given between devices 16 and 17 via control switch 21 of selection means 59. Then tuning means 80 secures the tuning in accordance with the reception frequency read out by selected devices 16 and 17 to facilitate the setting for the subsequent frequency.
JP53143761A 1978-11-21 1978-11-21 receiving device Expired JPS5953725B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53143761A JPS5953725B2 (en) 1978-11-21 1978-11-21 receiving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53143761A JPS5953725B2 (en) 1978-11-21 1978-11-21 receiving device

Publications (2)

Publication Number Publication Date
JPS5570140A true JPS5570140A (en) 1980-05-27
JPS5953725B2 JPS5953725B2 (en) 1984-12-26

Family

ID=15346400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53143761A Expired JPS5953725B2 (en) 1978-11-21 1978-11-21 receiving device

Country Status (1)

Country Link
JP (1) JPS5953725B2 (en)

Also Published As

Publication number Publication date
JPS5953725B2 (en) 1984-12-26

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