JPS56158527A - Channel selecting device - Google Patents

Channel selecting device

Info

Publication number
JPS56158527A
JPS56158527A JP6211080A JP6211080A JPS56158527A JP S56158527 A JPS56158527 A JP S56158527A JP 6211080 A JP6211080 A JP 6211080A JP 6211080 A JP6211080 A JP 6211080A JP S56158527 A JPS56158527 A JP S56158527A
Authority
JP
Japan
Prior art keywords
band
signal
interlocking
resistor
control section
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
JP6211080A
Other languages
Japanese (ja)
Inventor
Koji Terami
Isao Fujimoto
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.)
Sanyo Electric Co Ltd
Original Assignee
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP6211080A priority Critical patent/JPS56158527A/en
Priority to CA000372665A priority patent/CA1158373A/en
Priority to US06/242,229 priority patent/US4363136A/en
Priority to DE8181301154T priority patent/DE3165166D1/en
Priority to EP81301154A priority patent/EP0036335B1/en
Publication of JPS56158527A publication Critical patent/JPS56158527A/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
    • H03J5/0254—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 transfered to a D/A converter
    • H03J5/0263—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 transfered to a D/A converter 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)

Abstract

PURPOSE:To make the adjustment of a receptional range easy, by connecting a resistor in series with a variable resistor for channel CH preset PS in interlocking with a band switching operation, and by setting the lower limit value in tuning voltage variable range. CONSTITUTION:A TV receiver consists of a control section 5 generating a prescribed signal in interlocking with a CH or PS switching operation, memory 7 storing the tuning voltage corresponding to the channel selection CH with a binary signal, and a channel selection section 4 which decodes a band signal 81 from the control section 5 and a CH signal 82 and applies band switching signals Bu, Bh, Bl and a tuning voltage to a tuner 1. An operating section 51 making CH switching, band switching switch SW53, and a charge/discharge circuit 61 for CHPS are connected to the control section 5. The restriction of the upper limit frequency is made by setting so that a frequency higher than a prescribed frequency than the maximum CH of a VHF high band BH can be made, and the restriction of the lower limit frequency is made by adjusting a semefixed resistor 63 connected between a variable resistor 62 and ground at the BH reception in interlocking with the operation of the SW53.
JP6211080A 1980-03-19 1980-05-10 Channel selecting device Pending JPS56158527A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP6211080A JPS56158527A (en) 1980-05-10 1980-05-10 Channel selecting device
CA000372665A CA1158373A (en) 1980-03-19 1981-03-10 Station selecting apparatus
US06/242,229 US4363136A (en) 1980-03-19 1981-03-10 Station selecting apparatus
DE8181301154T DE3165166D1 (en) 1980-03-19 1981-03-18 Station selecting apparatus
EP81301154A EP0036335B1 (en) 1980-03-19 1981-03-18 Station selecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6211080A JPS56158527A (en) 1980-05-10 1980-05-10 Channel selecting device

Publications (1)

Publication Number Publication Date
JPS56158527A true JPS56158527A (en) 1981-12-07

Family

ID=13190583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6211080A Pending JPS56158527A (en) 1980-03-19 1980-05-10 Channel selecting device

Country Status (1)

Country Link
JP (1) JPS56158527A (en)

Similar Documents

Publication Publication Date Title
ES8305986A1 (en) Multiband tuning system for a television receiver
EP0186205A3 (en) Frequency and volume display for a receiver
JPS56158527A (en) Channel selecting device
US4365348A (en) Tuning voltage generating apparatus of voltage synthesizer type
GB1273315A (en) Signal overload compensation circuit for antenna tuning system
US2700730A (en) Mixer injection
JPS5724114A (en) Channel selector
JPS5451307A (en) Television receiver
JPS568904A (en) Antenna unit
JPS5776935A (en) Tuner
JPS5526731A (en) Television tuner
JPS5413206A (en) Fine tuning unit for pll type channel selection circuit
JPS56132011A (en) Tuner device of television receiver
EP0036335B1 (en) Station selecting apparatus
JPS573417A (en) Channel selector
JPS56109044A (en) Receiver
JPS5799801A (en) Automatic ghost reducing device
JPS5650618A (en) Channel selection device
JPS55123241A (en) Synthesizer receiver
JPS55138904A (en) Antenna unit
GB1160684A (en) Improvements in or relating to Devices for Automatically Tuning Electric Signal Receivers
JPS5739614A (en) Tuner
JPS56132012A (en) Tuner device of television receiver
JPS5742222A (en) Tuner
JPS56114429A (en) Channel selection equipment