GB1521898A - Broadcast receiver channel selection system - Google Patents

Broadcast receiver channel selection system

Info

Publication number
GB1521898A
GB1521898A GB3800475A GB3800475A GB1521898A GB 1521898 A GB1521898 A GB 1521898A GB 3800475 A GB3800475 A GB 3800475A GB 3800475 A GB3800475 A GB 3800475A GB 1521898 A GB1521898 A GB 1521898A
Authority
GB
United Kingdom
Prior art keywords
tuning
memory
address
switch
digital
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.)
Expired
Application number
GB3800475A
Other languages
English (en)
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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
Priority claimed from US05/508,968 external-priority patent/US3968443A/en
Priority claimed from US05/509,190 external-priority patent/US3968440A/en
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of GB1521898A publication Critical patent/GB1521898A/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
    • H03J5/0254—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
    • 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
    • H03J5/029—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 with channel skipping capability

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
GB3800475A 1974-09-25 1975-09-16 Broadcast receiver channel selection system Expired GB1521898A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US50896974A 1974-09-25 1974-09-25
US05/508,968 US3968443A (en) 1974-09-25 1974-09-25 Solid state television channel selection system
US05/509,190 US3968440A (en) 1974-09-25 1974-09-25 Solid state television channel selection system

Publications (1)

Publication Number Publication Date
GB1521898A true GB1521898A (en) 1978-08-16

Family

ID=27414399

Family Applications (3)

Application Number Title Priority Date Filing Date
GB3800475A Expired GB1521898A (en) 1974-09-25 1975-09-16 Broadcast receiver channel selection system
GB2767376A Expired GB1521900A (en) 1974-09-25 1975-09-16 Radio set tuning system
GB2767276A Expired GB1521899A (en) 1974-09-25 1975-09-16 Television channel number display circuit

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB2767376A Expired GB1521900A (en) 1974-09-25 1975-09-16 Radio set tuning system
GB2767276A Expired GB1521899A (en) 1974-09-25 1975-09-16 Television channel number display circuit

Country Status (5)

Country Link
JP (1) JPS5839417B2 (fr)
DE (1) DE2542829C2 (fr)
FR (1) FR2286550A1 (fr)
GB (3) GB1521898A (fr)
NL (1) NL187510C (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5227302A (en) * 1975-08-27 1977-03-01 Sony Corp Station selecting device
GB1518712A (en) * 1975-08-28 1978-07-26 Sony Corp Channel selecting apparatus
JPS5228203A (en) * 1975-08-28 1977-03-03 Sony Corp Station selector unit
JPS5349920U (fr) * 1976-09-29 1978-04-27
DE2811032A1 (de) * 1977-03-17 1978-09-28 Texas Instruments Inc Anordnung zum abstimmen eines rundfunkempfaengers
JPS5816764B2 (ja) * 1977-03-31 1983-04-02 株式会社東芝 記憶回路制御装置
JPS53139225U (fr) * 1977-04-07 1978-11-04
JPS53135505A (en) * 1977-04-30 1978-11-27 Sharp Corp Automatic channel selection informing device for receiver
JPS5412202A (en) * 1977-06-28 1979-01-29 Sharp Corp Automatic channel selector
JPS5456304A (en) * 1977-06-30 1979-05-07 Pioneer Electronic Corp Channel selection indicator for electronic tuning receiver
US4156850A (en) * 1977-08-29 1979-05-29 Rca Corporation Display system for facilitating the setup of a tuning system
JPS5453901A (en) * 1977-10-07 1979-04-27 Hitachi Ltd Channel selector
US4164711A (en) * 1977-10-31 1979-08-14 Rca Corporation Tuning system including a memory for storing tuning information with user controls arranged to facilitate its programming
CA1142660A (fr) * 1978-01-31 1983-03-08 Tatsuo Ito Recepteur radio a syntonisateur electronique
JPS5937892B2 (ja) * 1978-05-17 1984-09-12 松下電器産業株式会社 選局装置
JPS5671325A (en) * 1979-11-16 1981-06-13 Pioneer Electronic Corp Preset receiver of electronic type
JPS6414597A (en) * 1987-07-03 1989-01-18 Matsushita Refrigeration Heat exchanging device
JPS6428494A (en) * 1987-07-24 1989-01-31 Matsushita Refrigeration Heat exchanger

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714585A (en) * 1971-02-17 1973-01-30 Regency Electronics Scanning radio having rapid channel skipping capability
NL161009C (nl) * 1971-07-23 1979-12-17 Matsushita Electric Ind Co Ltd Kanaalkiezer.
JPS555729B2 (fr) * 1971-11-29 1980-02-08
US3794925A (en) * 1972-06-27 1974-02-26 Gen Res Electronics Inc Frequency-skipping system for a signal-seeking receiver
JPS4948218A (fr) * 1972-09-13 1974-05-10

Also Published As

Publication number Publication date
GB1521899A (en) 1978-08-16
FR2286550B1 (fr) 1982-04-16
JPS5839417B2 (ja) 1983-08-30
NL7511296A (nl) 1976-03-29
NL187510C (nl) 1991-10-16
GB1521900A (en) 1978-08-16
FR2286550A1 (fr) 1976-04-23
DE2542829A1 (de) 1976-04-15
DE2542829C2 (de) 1987-04-30
JPS5176901A (ja) 1976-07-03

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19950915