IT1251293B - Sistema di disattivazione in un ricevitore di televisione - Google Patents
Sistema di disattivazione in un ricevitore di televisioneInfo
- Publication number
- IT1251293B IT1251293B ITMI912281A ITMI912281A IT1251293B IT 1251293 B IT1251293 B IT 1251293B IT MI912281 A ITMI912281 A IT MI912281A IT MI912281 A ITMI912281 A IT MI912281A IT 1251293 B IT1251293 B IT 1251293B
- Authority
- IT
- Italy
- Prior art keywords
- detector
- receiver
- television receiver
- coupled
- deactivation system
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/63—Generation or supply of power specially adapted for television receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Details Of Television Scanning (AREA)
- Amplifiers (AREA)
Abstract
In un ricevitore di. televisione, la tensione applicata all'altoparlante (40, 42) dall'amplificatore audio (48, 50) viene filtrata, in un filtro passa-basso ed accoppiata ad un rivelatore di soglia (52). Il segnale audio normale viene attenuato e, pertanto, il rivelatore non viene fatto scattare mentre la corrente continua stabile viene fatta circolare attraverso il filtro e provoca lo scatto del rivelatore. L'uscita del rivelatore (52) è accoppiata al circuito di protezione contro i raggi X (25, 60, 62) del ricevitore il quale opera in modo tale da disattivare il ricevitore.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57172690A | 1990-08-27 | 1990-08-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI912281A0 ITMI912281A0 (it) | 1991-08-23 |
ITMI912281A1 ITMI912281A1 (it) | 1992-02-28 |
IT1251293B true IT1251293B (it) | 1995-05-08 |
Family
ID=24284791
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT91MI001744A ITMI911744A1 (it) | 1990-08-27 | 1991-06-25 | Sistema di disattivazione in un ricevitore di televisione |
ITMI912281A IT1251293B (it) | 1990-08-27 | 1991-08-23 | Sistema di disattivazione in un ricevitore di televisione |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT91MI001744A ITMI911744A1 (it) | 1990-08-27 | 1991-06-25 | Sistema di disattivazione in un ricevitore di televisione |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP3077067B2 (it) |
KR (1) | KR100214103B1 (it) |
DE (1) | DE4127482B4 (it) |
GB (1) | GB2248000B (it) |
HK (1) | HK1004043A1 (it) |
IT (2) | ITMI911744A1 (it) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5224169A (en) * | 1991-05-13 | 1993-06-29 | Thomson Consumer Electronics, Inc. | Protection arrangement for an audio output channel |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5443345B1 (it) * | 1969-08-28 | 1979-12-19 | ||
CA1022467A (en) * | 1974-05-21 | 1977-12-13 | Toshihiko Miyata | Load protective circuit |
US4045742A (en) * | 1976-04-12 | 1977-08-30 | Zenith Radio Corporation | High voltage shutdown circuit responsive to excessive beam current and high voltage |
JPS552765A (en) * | 1978-06-23 | 1980-01-10 | Natl Res Inst For Metals | Production of hydrogen sulfide by electrolysis |
WO1980002477A1 (en) * | 1979-05-08 | 1980-11-13 | Fortieth Benelux Nominees Pty | Protection device or circuit for loudspeakers |
US4402029A (en) * | 1979-06-15 | 1983-08-30 | Matsushita Electric Industrial Co., Ltd. | Protective circuit for output transformer-less circuit |
JPS56116313A (en) * | 1980-02-20 | 1981-09-12 | Hitachi Ltd | Two signal amplifier |
DE3436555A1 (de) * | 1984-10-05 | 1986-04-10 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Schaltungsanordnung zur stromversorgung eines fernsehempfaengers |
US4641064A (en) * | 1985-04-29 | 1987-02-03 | Rca Corporation | Television power supply shutdown circuit |
JPH01179523A (ja) * | 1988-01-08 | 1989-07-17 | Sharp Corp | テレビの音声出力保護装置 |
-
1991
- 1991-06-25 IT IT91MI001744A patent/ITMI911744A1/it not_active IP Right Cessation
- 1991-08-14 KR KR1019910014008A patent/KR100214103B1/ko not_active IP Right Cessation
- 1991-08-20 DE DE4127482A patent/DE4127482B4/de not_active Expired - Fee Related
- 1991-08-23 GB GB9118236A patent/GB2248000B/en not_active Expired - Fee Related
- 1991-08-23 IT ITMI912281A patent/IT1251293B/it active IP Right Grant
- 1991-08-26 JP JP03295251A patent/JP3077067B2/ja not_active Expired - Fee Related
-
1998
- 1998-04-17 HK HK98103214A patent/HK1004043A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPH0514752A (ja) | 1993-01-22 |
HK1004043A1 (en) | 1998-11-13 |
ITMI911744A0 (it) | 1991-06-25 |
GB2248000A (en) | 1992-03-18 |
ITMI912281A0 (it) | 1991-08-23 |
ITMI912281A1 (it) | 1992-02-28 |
DE4127482B4 (de) | 2004-07-15 |
ITMI911744A1 (it) | 1991-10-03 |
GB2248000B (en) | 1994-08-10 |
DE4127482A1 (de) | 1992-03-05 |
KR100214103B1 (ko) | 1999-08-02 |
GB9118236D0 (en) | 1991-10-09 |
JP3077067B2 (ja) | 2000-08-14 |
KR920005608A (ko) | 1992-03-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970827 |