JPS5375717A - Control signal generating circuit for frequency synthesizer for transceiver - Google Patents

Control signal generating circuit for frequency synthesizer for transceiver

Info

Publication number
JPS5375717A
JPS5375717A JP15301876A JP15301876A JPS5375717A JP S5375717 A JPS5375717 A JP S5375717A JP 15301876 A JP15301876 A JP 15301876A JP 15301876 A JP15301876 A JP 15301876A JP S5375717 A JPS5375717 A JP S5375717A
Authority
JP
Japan
Prior art keywords
transceiver
control signal
signal generating
generating circuit
frequency synthesizer
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.)
Pending
Application number
JP15301876A
Other languages
Japanese (ja)
Inventor
Norio Yamashita
Toshiyuki Ozawa
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP15301876A priority Critical patent/JPS5375717A/en
Priority to CA292,647A priority patent/CA1089017A/en
Priority to US05/859,265 priority patent/US4198605A/en
Publication of JPS5375717A publication Critical patent/JPS5375717A/en
Pending 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)
  • Transmitters (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transceivers (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To enable immediate transmission and reception with the original channel after the completion with a specific channel, by selecting the specific channel memory circuit and the output signal of the up down counter with the multiplexer.
JP15301876A 1976-12-16 1976-12-16 Control signal generating circuit for frequency synthesizer for transceiver Pending JPS5375717A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP15301876A JPS5375717A (en) 1976-12-16 1976-12-16 Control signal generating circuit for frequency synthesizer for transceiver
CA292,647A CA1089017A (en) 1976-12-16 1977-12-08 Channel selecting apparatus in receiver
US05/859,265 US4198605A (en) 1976-12-16 1977-12-09 Channel selecting apparatus in a receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15301876A JPS5375717A (en) 1976-12-16 1976-12-16 Control signal generating circuit for frequency synthesizer for transceiver

Publications (1)

Publication Number Publication Date
JPS5375717A true JPS5375717A (en) 1978-07-05

Family

ID=15553156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15301876A Pending JPS5375717A (en) 1976-12-16 1976-12-16 Control signal generating circuit for frequency synthesizer for transceiver

Country Status (1)

Country Link
JP (1) JPS5375717A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0235527U (en) * 1988-08-30 1990-03-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0235527U (en) * 1988-08-30 1990-03-07

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