JPS57152721A - Digital channel selecting device - Google Patents

Digital channel selecting device

Info

Publication number
JPS57152721A
JPS57152721A JP3920081A JP3920081A JPS57152721A JP S57152721 A JPS57152721 A JP S57152721A JP 3920081 A JP3920081 A JP 3920081A JP 3920081 A JP3920081 A JP 3920081A JP S57152721 A JPS57152721 A JP S57152721A
Authority
JP
Japan
Prior art keywords
memory
ram
specific value
holding
contents
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
JP3920081A
Other languages
English (en)
Japanese (ja)
Other versions
JPH023566B2 (da
Inventor
Toshifumi Sakata
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP3920081A priority Critical patent/JPS57152721A/ja
Publication of JPS57152721A publication Critical patent/JPS57152721A/ja
Publication of JPH023566B2 publication Critical patent/JPH023566B2/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
    • H03J5/0254—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)
JP3920081A 1981-03-18 1981-03-18 Digital channel selecting device Granted JPS57152721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3920081A JPS57152721A (en) 1981-03-18 1981-03-18 Digital channel selecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3920081A JPS57152721A (en) 1981-03-18 1981-03-18 Digital channel selecting device

Publications (2)

Publication Number Publication Date
JPS57152721A true JPS57152721A (en) 1982-09-21
JPH023566B2 JPH023566B2 (da) 1990-01-24

Family

ID=12546477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3920081A Granted JPS57152721A (en) 1981-03-18 1981-03-18 Digital channel selecting device

Country Status (1)

Country Link
JP (1) JPS57152721A (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04129940A (ja) * 1990-09-19 1992-04-30 Fuji Xerox Co Ltd 紙粉除去装置

Also Published As

Publication number Publication date
JPH023566B2 (da) 1990-01-24

Similar Documents

Publication Publication Date Title
AU2173583A (en) Signalling a specific charge condition of an accumulator battery
TW324826B (en) Fail-safe non-volatile memory programming system and method thereof
GB2321519A (en) Gamma ray spectral tool for well logging
GB1422401A (en) Yarn break detector
EP0114471A3 (en) Strip chart recorders
JPS57152721A (en) Digital channel selecting device
JPS5561832A (en) Power failure compensation system for computer
JPS57191893A (en) Control system for life of earom
JPS5699A (en) Semiconductor memory unit
GB1488421A (en) Data signal transmission equipments with automatic gain or attenuation control
JPS57117194A (en) Protection method for data destruction of backup ram at power supply interruption of microcomputer system
JPS54125932A (en) Protective device for memory unit
JPS5421845A (en) Control method for copier
JPS5539983A (en) Power source device
HK66495A (en) Selective caller/receiver
JPS567259A (en) Speed switching circuit
JPS57197653A (en) Control device of microprogram
JPS6482756A (en) Communication equipment
KR850002189A (ko) 제어 장치
ES8801450A1 (es) Un aparato para tratar paquetes de datos.
JPS55134417A (en) Processing system for terminal equipment fault information control
JPS5647856A (en) Automatic vending equipment
JPS54107602A (en) Channel selection unit
JPS54109327A (en) Display recorder
JPS5414643A (en) Data channel