ES2187287B1 - STATE DETECTION SYSTEM FOR HEADPHONE JACKS. - Google Patents
STATE DETECTION SYSTEM FOR HEADPHONE JACKS.Info
- Publication number
- ES2187287B1 ES2187287B1 ES200102045A ES200102045A ES2187287B1 ES 2187287 B1 ES2187287 B1 ES 2187287B1 ES 200102045 A ES200102045 A ES 200102045A ES 200102045 A ES200102045 A ES 200102045A ES 2187287 B1 ES2187287 B1 ES 2187287B1
- Authority
- ES
- Spain
- Prior art keywords
- detection system
- comparator
- impedance
- headphone
- established
- 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 - Fee Related
Links
Landscapes
- Headphones And Earphones (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Sistema de detección de estado de tomas de auriculares, que consta de un circuito captador comprobador de la impedancia (Z) de las líneas que conducen la señales de audio; el cual circuito captador incluye, por cada toma de auricular a comprobar, un conector-hembra con dos contactos, uno por canal, que se abren cuando se inserta el conector-macho de los auriculares; yendo asociado dicho circuito captador a un comparador (amplificador operacional) controlado por microprocesador en el que previamente se ha establecido un valor (Zo) como impedancia de referencia con la cual establecer la comparación; de modo que, cuando dicho comparador detecta un valor de impedancia mayor que (Z0) el comparador cambia de estado en su salida generando una tensión opuesta a la establecida en funcionamiento normal. De aplicación en electrónica.Headphone jack status detection system, consisting of an impedance tester (Z) sensor circuit of the lines that conduct the audio signals; which sensor circuit includes, for each headphone jack to be checked, a female connector with two contacts, one per channel, which open when the headphone male connector is inserted; said collector circuit being associated with a comparator (operational amplifier) controlled by a microprocessor in which a value (Zo) has previously been established as the reference impedance with which to establish the comparison; so that when said comparator detects an impedance value greater than (Z0), the comparator changes state at its output generating a voltage opposite to that established in normal operation. Application in electronics.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200102045A ES2187287B1 (en) | 2001-09-11 | 2001-09-11 | STATE DETECTION SYSTEM FOR HEADPHONE JACKS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200102045A ES2187287B1 (en) | 2001-09-11 | 2001-09-11 | STATE DETECTION SYSTEM FOR HEADPHONE JACKS. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2187287A1 ES2187287A1 (en) | 2003-05-16 |
ES2187287B1 true ES2187287B1 (en) | 2004-08-16 |
Family
ID=8498886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES200102045A Expired - Fee Related ES2187287B1 (en) | 2001-09-11 | 2001-09-11 | STATE DETECTION SYSTEM FOR HEADPHONE JACKS. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2187287B1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57101436A (en) * | 1980-12-16 | 1982-06-24 | Sony Corp | Remote controller |
JPS5956248A (en) * | 1982-09-24 | 1984-03-31 | Sony Corp | Remote control circuit of reproducing device |
JPH03239004A (en) * | 1990-02-16 | 1991-10-24 | Matsushita Electric Ind Co Ltd | Amplifier |
GB2279760B (en) * | 1993-07-06 | 1997-04-23 | Gentex Corp | Communication headset tester |
JPH10145884A (en) * | 1996-11-06 | 1998-05-29 | Toshiba Corp | Sound volume controller |
US6437230B2 (en) * | 2000-06-13 | 2002-08-20 | Kabushiki Kaisha Kawai Gakki Seisakusho | Effector apparatus in electronic musical instrument |
-
2001
- 2001-09-11 ES ES200102045A patent/ES2187287B1/en not_active Expired - Fee Related
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN, Vol. 16, Nº 023, (E-1157) 21.01.1992, IC=H03F1/00, JP 03-239004 A (MATSUSHITA ELECTRIC INC CO LTD) 24.10.1991, resumen. * |
PATENT ABSTRACTS OF JAPAN, Vol. 6, Nº 189, (E-133) 28.09.1982, IC=H04B1/16, JP 57-101436 A (SONY CORP) 24.06.1982, resumen. * |
PATENT ABSTRACTS OF JAPAN, Vol. 8, Nº 159, (P-289) 24.07.1984, IC=G11B15/10, JP 59-056248 A (SONY KK) 31.03.1984, resumen; figura. * |
Also Published As
Publication number | Publication date |
---|---|
ES2187287A1 (en) | 2003-05-16 |
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Legal Events
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