GB1521899A - Television channel number display circuit - Google Patents

Television channel number display circuit

Info

Publication number
GB1521899A
GB1521899A GB2767276A GB2767276A GB1521899A GB 1521899 A GB1521899 A GB 1521899A GB 2767276 A GB2767276 A GB 2767276A GB 2767276 A GB2767276 A GB 2767276A GB 1521899 A GB1521899 A GB 1521899A
Authority
GB
United Kingdom
Prior art keywords
number display
channel number
display circuit
television channel
sept
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
GB2767276A
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 US05/509,190 external-priority patent/US3968440A/en
Priority claimed from US05/508,968 external-priority patent/US3968443A/en
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of GB1521899A publication Critical patent/GB1521899A/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

Abstract

1521899 Television receiver channel display arrangement TEXAS INSTRUMENTS Inc 16 Sept 1975 [25 Sept 1974 (3)] 27672/76 Divided out of 1521898 Heading H3Q The subject matter of this Specification is substantially the same as that disclosed in Figs. 1-12, 14, 18 and 19 of Specification 1,521,898 but the claims relate to a TV channel number display circuit in which a predetermined quantity is added (at 716, 718, Fig. 15, not shown) to UHF channel number display words output from a selected address of a store (145, Fig. 8, not shown) to provide a display (at 147) of the selected UHF channel. Specification 1,521,900 is referred to.
GB2767276A 1974-09-25 1975-09-16 Television channel number display circuit Expired GB1521899A (en)

Applications Claiming Priority (3)

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

Publications (1)

Publication Number Publication Date
GB1521899A true GB1521899A (en) 1978-08-16

Family

ID=27414399

Family Applications (3)

Application Number Title Priority Date Filing Date
GB2767276A Expired GB1521899A (en) 1974-09-25 1975-09-16 Television channel number display circuit
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

Family Applications After (2)

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

Country Status (5)

Country Link
JP (1) JPS5839417B2 (en)
DE (1) DE2542829A1 (en)
FR (1) FR2286550A1 (en)
GB (3) GB1521899A (en)
NL (1) NL187510C (en)

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 (en) * 1976-09-29 1978-04-27
DE2811032A1 (en) * 1977-03-17 1978-09-28 Texas Instruments Inc Tuning circuit for radio receiver - has microcomputer and two memories holding tuning words and binary addresses
JPS5816764B2 (en) * 1977-03-31 1983-04-02 株式会社東芝 Memory circuit control device
JPS53139225U (en) * 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
AU511400B2 (en) * 1978-01-31 1980-08-14 Fujitsu Ten Ltd. Electronic tuning radio receiver
JPS5937892B2 (en) * 1978-05-17 1984-09-12 松下電器産業株式会社 Channel selection device
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 (en) * 1971-07-23 1979-12-17 Matsushita Electric Ind Co Ltd CHANNEL SELECTOR.
JPS555729B2 (en) * 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 (en) * 1972-09-13 1974-05-10

Also Published As

Publication number Publication date
GB1521900A (en) 1978-08-16
DE2542829A1 (en) 1976-04-15
NL187510C (en) 1991-10-16
DE2542829C2 (en) 1987-04-30
JPS5176901A (en) 1976-07-03
GB1521898A (en) 1978-08-16
FR2286550A1 (en) 1976-04-23
NL7511296A (en) 1976-03-29
JPS5839417B2 (en) 1983-08-30
FR2286550B1 (en) 1982-04-16

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Legal Events

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

Effective date: 19950915