ES403045A1 - Device for tuning television receivers. (Machine-translation by Google Translate, not legally binding) - Google Patents

Device for tuning television receivers. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES403045A1
ES403045A1 ES403045A ES403045A ES403045A1 ES 403045 A1 ES403045 A1 ES 403045A1 ES 403045 A ES403045 A ES 403045A ES 403045 A ES403045 A ES 403045A ES 403045 A1 ES403045 A1 ES 403045A1
Authority
ES
Spain
Prior art keywords
circuit
signal
sawtooth
search
negative voltage
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
ES403045A
Other languages
Spanish (es)
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.)
Autovox SpA
Original Assignee
Autovox SpA
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 Autovox SpA filed Critical Autovox SpA
Priority to ES403045A priority Critical patent/ES403045A1/en
Publication of ES403045A1 publication Critical patent/ES403045A1/en
Expired legal-status Critical Current

Links

Landscapes

  • Television Receiver Circuits (AREA)

Abstract

Device for tuning television receivers on an emitting signal and for keeping them tuned on it also during a provisional fading of said signal, said device including: a sawtooth generator (1) that applies a sawtooth pulse to the tuning system of the varicap type of said receiver and to a band switching circuit (2), a signal search stop circuit (5) which controls said sawtooth pulse generating circuit (1) and which can not stop the generation of said pulse when a negative voltage is applied to it and which stops said sawtooth generating circuit when a positive voltage is applied to it; an amplifier, limiter and discriminator circuit (4) having a first input connected to the intercarrier stages of said television receiver; an electronic switching unit (11) interposed between a source of said negative voltage and a third input of said amplifying, limiting and discriminating circuit (4); said block being switched on due to the presence in its second input of an amplified and rectified sound intercarrier signal, thereby interrupting the supply of said negative voltage to the search stop circuit (5) and allowing the carrier of image at intermediate frequency apply, if present, said positive voltage to said search stop circuit, whereby said sawtooth generation and therefore the search for the signal is interrupted. (Machine-translation by Google Translate, not legally binding)
ES403045A 1972-05-22 1972-05-22 Device for tuning television receivers. (Machine-translation by Google Translate, not legally binding) Expired ES403045A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES403045A ES403045A1 (en) 1972-05-22 1972-05-22 Device for tuning television receivers. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES403045A ES403045A1 (en) 1972-05-22 1972-05-22 Device for tuning television receivers. (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES403045A1 true ES403045A1 (en) 1975-04-16

Family

ID=8461238

Family Applications (1)

Application Number Title Priority Date Filing Date
ES403045A Expired ES403045A1 (en) 1972-05-22 1972-05-22 Device for tuning television receivers. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES403045A1 (en)

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