US20110058694A1 - Audio Signal Switching Apparatus - Google Patents
Audio Signal Switching Apparatus Download PDFInfo
- Publication number
- US20110058694A1 US20110058694A1 US12/944,891 US94489110A US2011058694A1 US 20110058694 A1 US20110058694 A1 US 20110058694A1 US 94489110 A US94489110 A US 94489110A US 2011058694 A1 US2011058694 A1 US 2011058694A1
- Authority
- US
- United States
- Prior art keywords
- audio
- computer system
- jack
- speaker
- turned
- 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.)
- Abandoned
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/18—Packaging or power distribution
- G06F1/181—Enclosures
Definitions
- the present invention relates to an audio signal switching apparatus. More particularly, the present invention relates to a circuit for switching an audio output path of a computer system.
- an audio output of the computer system (e.g. an audio codec) is generally confined to output audio signals only to an audio jack on the front panel or a speaker jack on the rear panel of the computer system. That is, the user can only select to use either an earphone or a speaker to play the music media stored in the computer system.
- the speaker plugged into the speaker jack of the rear panel does not receive the audio signals.
- digital audio playing devices are widely used recently, and portable digital audio players, such as CD walkmans or MP3 walkmans, are especially popular with the general public. If used to play digital audio media, the computer system must be turned on to decode and output the digital audio media.
- Some computer manufacturers provide a computer architecture called “barebone”, which is similar to a household appliance. The barebone can play the digital audio media while the computer is turned off, thus enabling users to listen to music by the barebone without turning the computer system on, i.e. without loading the operating system of the computer.
- the barebone has many disadvantages.
- the barebone is expensive because the customer has to pay at least 50 USD for an operation interface and a simple digital audio playing system (e.g. a system chip, NAND Flash and DRAM) on the computer.
- a simple digital audio playing system e.g. a system chip, NAND Flash and DRAM
- the simple digital audio playing system cannot offer various sound effects and enhancements or a full management of songs.
- the operation interface of the simple digital audio playing system is generally different from that of the walkman which the user is accustomed to, so the user may confuse using the two different operation interfaces.
- some special digital audio media for walkmans like iPod
- have specific access protections making them hard to play directly by the barebone.
- the present invention provides an audio signal switching apparatus, which enables users to directly connect a digital audio playing device and a speaker through a computer system, so as to decrease the cost and obtain a good audio signal processing ability.
- the audio signal switching apparatus at least comprises an audio jack, a speaker jack, a detection circuit and a control circuit.
- the audio jack and the speaker jack are separately configured in a computer system.
- the detection circuit detects whether the computer system is turned on or turned off.
- the control circuit is electrically connected to the detection circuit and connects the audio jack and the speaker jack when the computer system is turned off.
- the audio signal switching apparatus at least comprises a case and a control circuit.
- the case at least comprises a computer system and has an audio jack and a speaker jack.
- the control circuit is electrically connected to the audio jack, the speaker jack and the computer system. When the computer system is turned off, the control circuit is arranged to electrically connect the audio jack to the speaker jack.
- the computer system has an audio jack and a speaker jack, and can selectively output audio signals through the audio jack or the speaker jack when turned on.
- the computer system is characterized by comprising an audio signal switching apparatus, which electrically connects the audio jack to the speaker jack when the computer system is turned off.
- FIG. 1A is a front view of one preferred embodiment of the present invention.
- FIG. 1B is a rear view of the preferred embodiment
- FIG. 2 is a circuit functional block diagram of one preferred embodiment of the present invention.
- FIG. 3 is a circuit functional block diagram of another preferred embodiment of the present invention.
- FIG. 4 is a circuit functional block diagram of another preferred embodiment of the present invention.
- the present invention electrically connects an audio jack to a speaker jack when a computer system is turned off, and thus a user can play the audio media of an external audio playing device directly by a speaker coupled to the computer system. Therefore, the user can operate the same operation interface that he is used to whether he is listening to the audio media by an earphone coupled to a walkman or by the speaker coupled to the computer system.
- FIG. 1A is a front view of one preferred embodiment of the present invention
- FIG. 1B is a rear view of the preferred embodiment, illustrating configurations of an audio jack and a speaker jack in a computer system.
- a computer system 100 is a host computer system or a barebone computer system.
- a case 102 of the computer system 100 has a front panel 112 and a rear panel 122 .
- the audio jacks which users often use, such as an earphone output jack 114 or a microphone output jack 116 are configured on the front panel 112 for users to plug in their peripherals, such as an earphone or a microphone.
- the speaker jack 124 used to connect a speaker is generally configured on the rear panel 122 for users to easily arrange and hide the connecting cables of the speaker behind the computer system 100 .
- FIG. 2 is a circuit functional block diagram of one preferred embodiment of the present invention.
- An audio signal switching apparatus 200 is used in the computer system 100 as illustrated in FIG. 1A and FIG. 1B and at least comprises an audio jack 202 , a speaker jack 204 , a detection circuit 206 and a control circuit 208 .
- the audio jack 202 and the speaker jack 204 are separately configured in the computer system 100 .
- the detection circuit 206 detects whether the computer system 100 is turned on (“ON”) or turned off (“OFF”).
- the control circuit 208 is electrically connected to the detection circuit 206 and connects the audio jack 202 and the speaker jack 204 when the computer system 100 is turned off.
- the control circuit 208 is arranged to selectively connect one of the audio jack 202 or the speaker jack 204 to an audio codec 212 of the computer system 100 .
- the user can only select either the audio jack 202 or the speaker jack 204 to play the music media from the computer system 100 .
- the audio jack 202 e.g. with the earphone or another speaker
- the speaker connected to the speaker jack 204 does not receive the same audio signals.
- the peripherals connected to the audio jack 202 do not receive the same audio signals.
- the detection circuit 206 and the control circuit 208 are integrated into a motherboard 222 of the computer system 100 .
- the audio codec 212 can be a built-in audio chip of the motherboard 222 or an external audio card plugged into the motherboard 222 .
- the detection circuit 206 determines whether the computer system 100 is turned on or turned off according to an electrical signal of the motherboard 222 , such as a +5V signal or other power-up or power-down signals or flags.
- the audio jack 202 can be the earphone output jack 114 or the microphone input jack 116 , which is for example configured on the front panel 112 of the case 102 of the computer system 100 , enabling input of audio media from another audio playing device, such as a CD walkman or an MP3 walkman.
- the speaker jack 204 is, for example, configured on the rear panel 122 of the case 102 of the computer system 100 , for connecting a speaker, an amplifier or other audio output apparatus.
- the audio signal switching apparatus 200 further comprises an operation interface 214 , such as a liquid crystal panel and a set of buttons electrically connected to the control circuit 208 .
- an operation interface 214 such as a liquid crystal panel and a set of buttons electrically connected to the control circuit 208 .
- FIG. 3 is a circuit functional block diagram of another preferred embodiment of the present invention.
- An audio signal switching apparatus 300 at least comprises a case 306 and a control circuit 308 .
- the case 306 physically encloses a motherboard (not illustrated) and comprises an audio jack 302 and a speaker jack 304 .
- the control circuit 308 is electrically connected to the audio jack 302 , the speaker jack 304 and the motherboard.
- the control circuit 308 can be configured on the motherboard, and when the motherboard is turned off (“OFF”), the control circuit 308 electrically connects the audio jack 302 to the speaker jack 304 .
- the control circuit 308 is arranged to selectively connect one of the audio jack 302 or the speaker jack 304 to an audio codec 312 .
- the control circuit 308 has both functions of detecting whether the computer is turned on or turned off and switching the audio output path.
- the control circuit 308 determines whether the motherboard is turned on or turned off according to an electrical signal of the motherboard, such as a +5V signal or other power-up or power-down signals or flags.
- the audio jack 302 can be an earphone output jack or a microphone input jack, which is for example configured on the front panel of the case 306 , enabling input of audio media from another audio playing device, such as a CD walkman or an MP3 walkman.
- the speaker jack 304 is for example configured on the rear panel of the case 306 , for connecting a speaker, an amplifier or other audio output apparatus.
- the audio codec 312 can be a built-in audio chip of the motherboard or an external audio card plugged into the motherboard.
- the audio signal switching apparatus 300 further comprises an operation interface 314 , such as a liquid crystal panel and a set of buttons, electrically connected to the control circuit 308 .
- an operation interface 314 such as a liquid crystal panel and a set of buttons, electrically connected to the control circuit 308 .
- FIG. 4 is a circuit functional block diagram of another preferred embodiment of the present invention.
- An audio signal switching apparatus 400 has an audio jack 402 , a speaker jack 404 and a control circuit 408 .
- the control circuit 408 is electrically connected to the audio jack 402 and the speaker jack 404 .
- a computer system e.g. containing a motherboard
- the control circuit 408 electrically connects the audio jack 402 to the speaker jack 404 .
- the control circuit 408 is arranged to selectively connect one of the audio jack 402 and the speaker jack 404 to an audio codec 412 .
- control circuit 408 has both functions of detecting whether the computer is turned on or turned off and switching the audio output path.
- the control circuit 408 is integrated into the audio codec 412 .
- the audio codec 412 can be a built-in audio chip of the motherboard or an external audio card plugged into the motherboard.
- the control circuit for switching the audio output path and the detection circuit for detecting whether the computer is turned on or turned off are two independent circuits with different functions; two different functions also can be integrated into the audio codec 412 , thus decreasing the cost and the occupied space.
- control circuit 408 determines whether the computer system is turned on or turned off according to an electrical signal of the computer system, such as a +5V signal of the motherboard or other power-up or power-down signals or flags.
- the audio jack 402 can be an earphone output jack or a microphone input jack, which is for example configured on the front panel of the case of the computer system, enabling input of audio media from another audio playing device, such as a CD walkman or an MP3 walkman.
- the speaker jack 404 is, for example configured on the rear panel of the case of the computer system, for connecting a speaker, an amplifier or other audio output apparatus.
- the audio signal switching apparatus 400 further comprises an operation interface 414 , such as a liquid crystal panel and a set of buttons, electrically connected to the control circuit 408 .
- an operation interface 414 such as a liquid crystal panel and a set of buttons, electrically connected to the control circuit 408 .
- the audio signal switching apparatus of these foregoing embodiments can allow a user to directly connect his audio signal playing device through the audio jack to the speaker which is connected to the speaker jack of the computer system and to output the audio media of the audio signal playing device to the speaker. Listening to audio media in this manner without turning on the computer can prevent wasting power and noise interference by the computer fans.
- the simple digital audio playing system of the computer system which is very expensive but has low functionality, can be omitted. Additionally, the user only needs to know one operation interface well and never has to consider the specific protections of accessing or converting audio media among different system platforms.
Abstract
An audio signal switching apparatus at least comprises an audio jack, a speaker jack, a detection circuit and a control circuit. The audio jack and the speaker jack are separately configured in a computer system. The detection circuit detects whether the computer system is turned on or turned off. The control circuit is connected to the detection circuit and electrically connects the audio jack to the speaker jack when the computer system is turned off.
Description
- This application is a continuation of application Ser. No. 11/341,102, filed Jan. 27, 2006, which claims priority to Taiwan Application Serial Number 94103426, filed Feb. 3, 2005. The entire disclosures of all the above applications are hereby incorporated by reference herein.
- 1. Field of Invention
- The present invention relates to an audio signal switching apparatus. More particularly, the present invention relates to a circuit for switching an audio output path of a computer system.
- 2. Description of Related Art
- With the rapid development of information technology, computers and peripherals have become very popular. A modern design is to configure I/O ports which users often use onto a front panel of a computer case, such that users may conveniently and freely plug in their peripherals, such as earphones or USB drives. In this modern case design, an audio output of the computer system (e.g. an audio codec) is generally confined to output audio signals only to an audio jack on the front panel or a speaker jack on the rear panel of the computer system. That is, the user can only select to use either an earphone or a speaker to play the music media stored in the computer system. When the user is listening to the audio signals through the audio jack of the front panel (e.g. by plugging in the earphone), the speaker plugged into the speaker jack of the rear panel does not receive the audio signals.
- Moreover, digital audio playing devices are widely used recently, and portable digital audio players, such as CD walkmans or MP3 walkmans, are especially popular with the general public. If used to play digital audio media, the computer system must be turned on to decode and output the digital audio media. Some computer manufacturers provide a computer architecture called “barebone”, which is similar to a household appliance. The barebone can play the digital audio media while the computer is turned off, thus enabling users to listen to music by the barebone without turning the computer system on, i.e. without loading the operating system of the computer.
- However, the barebone has many disadvantages. The barebone is expensive because the customer has to pay at least 50 USD for an operation interface and a simple digital audio playing system (e.g. a system chip, NAND Flash and DRAM) on the computer. Moreover, the simple digital audio playing system cannot offer various sound effects and enhancements or a full management of songs. The operation interface of the simple digital audio playing system is generally different from that of the walkman which the user is accustomed to, so the user may confuse using the two different operation interfaces. In addition, some special digital audio media for walkmans (like iPod) have specific access protections, making them hard to play directly by the barebone.
- The present invention provides an audio signal switching apparatus, which enables users to directly connect a digital audio playing device and a speaker through a computer system, so as to decrease the cost and obtain a good audio signal processing ability.
- According to the present invention, the audio signal switching apparatus at least comprises an audio jack, a speaker jack, a detection circuit and a control circuit. The audio jack and the speaker jack are separately configured in a computer system. The detection circuit detects whether the computer system is turned on or turned off. The control circuit is electrically connected to the detection circuit and connects the audio jack and the speaker jack when the computer system is turned off.
- It is another aspect of the present invention to provide an audio signal switching apparatus, which can automatically or manually switch an audio output path of a computer system, in order to increase the computer system value and enhance the operating convenience of users.
- According to the present invention, the audio signal switching apparatus at least comprises a case and a control circuit. The case at least comprises a computer system and has an audio jack and a speaker jack. The control circuit is electrically connected to the audio jack, the speaker jack and the computer system. When the computer system is turned off, the control circuit is arranged to electrically connect the audio jack to the speaker jack.
- It is still another aspect of the present invention to provide a computer system, which connects its original audio jack and speaker jack when turned off, such that users can directly plug in an audio playing device to play audio media.
- According to the present invention, the computer system has an audio jack and a speaker jack, and can selectively output audio signals through the audio jack or the speaker jack when turned on. The computer system is characterized by comprising an audio signal switching apparatus, which electrically connects the audio jack to the speaker jack when the computer system is turned off.
- It is to be understood that both the foregoing general description and the following detailed description are examples, and are intended to provide further explanation of the invention as claimed.
- These and other features, aspects and advantages of the present invention will become better understood with regard to the following description, appended claims and accompanying drawings where:
-
FIG. 1A is a front view of one preferred embodiment of the present invention; -
FIG. 1B is a rear view of the preferred embodiment; -
FIG. 2 is a circuit functional block diagram of one preferred embodiment of the present invention; -
FIG. 3 is a circuit functional block diagram of another preferred embodiment of the present invention; and -
FIG. 4 is a circuit functional block diagram of another preferred embodiment of the present invention. - Reference will now be made in detail to the present preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
- The present invention electrically connects an audio jack to a speaker jack when a computer system is turned off, and thus a user can play the audio media of an external audio playing device directly by a speaker coupled to the computer system. Therefore, the user can operate the same operation interface that he is used to whether he is listening to the audio media by an earphone coupled to a walkman or by the speaker coupled to the computer system.
-
FIG. 1A is a front view of one preferred embodiment of the present invention, andFIG. 1B is a rear view of the preferred embodiment, illustrating configurations of an audio jack and a speaker jack in a computer system. In the preferred embodiment, acomputer system 100 is a host computer system or a barebone computer system. Acase 102 of thecomputer system 100 has afront panel 112 and arear panel 122. The audio jacks which users often use, such as anearphone output jack 114 or amicrophone output jack 116, are configured on thefront panel 112 for users to plug in their peripherals, such as an earphone or a microphone. Thespeaker jack 124 used to connect a speaker is generally configured on therear panel 122 for users to easily arrange and hide the connecting cables of the speaker behind thecomputer system 100. -
FIG. 2 is a circuit functional block diagram of one preferred embodiment of the present invention. An audiosignal switching apparatus 200 is used in thecomputer system 100 as illustrated inFIG. 1A andFIG. 1B and at least comprises anaudio jack 202, aspeaker jack 204, adetection circuit 206 and acontrol circuit 208. Theaudio jack 202 and thespeaker jack 204 are separately configured in thecomputer system 100. Thedetection circuit 206 detects whether thecomputer system 100 is turned on (“ON”) or turned off (“OFF”). Thecontrol circuit 208 is electrically connected to thedetection circuit 206 and connects theaudio jack 202 and thespeaker jack 204 when thecomputer system 100 is turned off. - When the
computer system 100 is turned on, thecontrol circuit 208 is arranged to selectively connect one of theaudio jack 202 or thespeaker jack 204 to anaudio codec 212 of thecomputer system 100. In other words, at that time, the user can only select either theaudio jack 202 or thespeaker jack 204 to play the music media from thecomputer system 100. When the user is listening to the audio signals of thecomputer system 100 by the audio jack 202 (e.g. with the earphone or another speaker), the speaker connected to thespeaker jack 204 does not receive the same audio signals. Conversely, when the user is listening to the audio signals of thecomputer system 100 by thespeaker jack 204, the peripherals connected to theaudio jack 202 do not receive the same audio signals. - In the preferred embodiment, the
detection circuit 206 and thecontrol circuit 208 are integrated into amotherboard 222 of thecomputer system 100. Theaudio codec 212 can be a built-in audio chip of themotherboard 222 or an external audio card plugged into themotherboard 222. Thedetection circuit 206 determines whether thecomputer system 100 is turned on or turned off according to an electrical signal of themotherboard 222, such as a +5V signal or other power-up or power-down signals or flags. Theaudio jack 202 can be theearphone output jack 114 or themicrophone input jack 116, which is for example configured on thefront panel 112 of thecase 102 of thecomputer system 100, enabling input of audio media from another audio playing device, such as a CD walkman or an MP3 walkman. Thespeaker jack 204 is, for example, configured on therear panel 122 of thecase 102 of thecomputer system 100, for connecting a speaker, an amplifier or other audio output apparatus. - In addition, the audio
signal switching apparatus 200 further comprises anoperation interface 214, such as a liquid crystal panel and a set of buttons electrically connected to thecontrol circuit 208. By thisoperation interface 214, user can manually switch theaudio jack 202 to be electrically connected to thespeaker 204 or theaudio codec 212. -
FIG. 3 is a circuit functional block diagram of another preferred embodiment of the present invention. An audiosignal switching apparatus 300 at least comprises acase 306 and acontrol circuit 308. Thecase 306 physically encloses a motherboard (not illustrated) and comprises anaudio jack 302 and aspeaker jack 304. Thecontrol circuit 308 is electrically connected to theaudio jack 302, thespeaker jack 304 and the motherboard. Thecontrol circuit 308 can be configured on the motherboard, and when the motherboard is turned off (“OFF”), thecontrol circuit 308 electrically connects theaudio jack 302 to thespeaker jack 304. Moreover, when the motherboard is turned on (“ON”), thecontrol circuit 308 is arranged to selectively connect one of theaudio jack 302 or thespeaker jack 304 to anaudio codec 312. - In the preferred embodiment, the
control circuit 308 has both functions of detecting whether the computer is turned on or turned off and switching the audio output path. Thecontrol circuit 308 determines whether the motherboard is turned on or turned off according to an electrical signal of the motherboard, such as a +5V signal or other power-up or power-down signals or flags. Theaudio jack 302 can be an earphone output jack or a microphone input jack, which is for example configured on the front panel of thecase 306, enabling input of audio media from another audio playing device, such as a CD walkman or an MP3 walkman. Thespeaker jack 304 is for example configured on the rear panel of thecase 306, for connecting a speaker, an amplifier or other audio output apparatus. Theaudio codec 312 can be a built-in audio chip of the motherboard or an external audio card plugged into the motherboard. - In addition, the audio
signal switching apparatus 300 further comprises anoperation interface 314, such as a liquid crystal panel and a set of buttons, electrically connected to thecontrol circuit 308. By thisoperation interface 314, user can manually switch theaudio jack 302 to be electrically connected to thespeaker 304 or to theaudio codec 312. -
FIG. 4 is a circuit functional block diagram of another preferred embodiment of the present invention. An audiosignal switching apparatus 400 has anaudio jack 402, aspeaker jack 404 and acontrol circuit 408. Thecontrol circuit 408 is electrically connected to theaudio jack 402 and thespeaker jack 404. When a computer system (e.g. containing a motherboard) is turned off (“OFF”), thecontrol circuit 408 electrically connects theaudio jack 402 to thespeaker jack 404. When the computer system is turned on (“ON”), thecontrol circuit 408 is arranged to selectively connect one of theaudio jack 402 and thespeaker jack 404 to anaudio codec 412. - In the preferred embodiment, the
control circuit 408 has both functions of detecting whether the computer is turned on or turned off and switching the audio output path. Thecontrol circuit 408 is integrated into theaudio codec 412. Theaudio codec 412 can be a built-in audio chip of the motherboard or an external audio card plugged into the motherboard. Persons skilled in the art can understand that the control circuit for switching the audio output path and the detection circuit for detecting whether the computer is turned on or turned off are two independent circuits with different functions; two different functions also can be integrated into theaudio codec 412, thus decreasing the cost and the occupied space. - Moreover, the
control circuit 408 determines whether the computer system is turned on or turned off according to an electrical signal of the computer system, such as a +5V signal of the motherboard or other power-up or power-down signals or flags. Theaudio jack 402 can be an earphone output jack or a microphone input jack, which is for example configured on the front panel of the case of the computer system, enabling input of audio media from another audio playing device, such as a CD walkman or an MP3 walkman. Thespeaker jack 404 is, for example configured on the rear panel of the case of the computer system, for connecting a speaker, an amplifier or other audio output apparatus. - In addition, the audio
signal switching apparatus 400 further comprises anoperation interface 414, such as a liquid crystal panel and a set of buttons, electrically connected to thecontrol circuit 408. By thisoperation interface 414, user can manually switch theaudio jack 402 to be electrically connected to thespeaker 404 or to theaudio codec 412. - The audio signal switching apparatus of these foregoing embodiments can allow a user to directly connect his audio signal playing device through the audio jack to the speaker which is connected to the speaker jack of the computer system and to output the audio media of the audio signal playing device to the speaker. Listening to audio media in this manner without turning on the computer can prevent wasting power and noise interference by the computer fans. The simple digital audio playing system of the computer system, which is very expensive but has low functionality, can be omitted. Additionally, the user only needs to know one operation interface well and never has to consider the specific protections of accessing or converting audio media among different system platforms.
- It will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present invention without departing from the scope or spirit of the invention. In view of the foregoing, it is intended that the present invention cover modifications and variations of this invention provided they fall within the scope of the following claims and their equivalents.
Claims (11)
1. An apparatus for switching an audio output path of a computer system, the apparatus comprising:
an I/O connector configured in the computer system;
a speaker;
a detection circuit arranged to detect whether the computer system is turned on or turned off; and
a control circuit electrically connected to the detection circuit, and arranged to electrically connect the I/O connector to the speaker when the computer system is turned off.
2. The apparatus of claim 1 , wherein the I/O connector is configured on a front panel of the computer system.
3. The apparatus of claim 1 , wherein the I/O connector is configured on a side panel of the computer system.
4. The apparatus of claim 1 , wherein the I/O connector is an audio inputting port or an audio outputting port.
5. The apparatus of claim 1 , wherein when the computer system is turned on, the control circuit is arranged to selectively connect one of the I/O connector or the speaker to an audio codec of the computer system.
6. The apparatus of claim 1 , wherein the detection circuit and the control circuit are integrated into an audio codec of the computer system.
7. A computer system, comprising:
a speaker;
a case having an I/O connector; and
a control circuit electrically connected to the I/O connector, the speaker, wherein when the computer system is turned off, the control circuit is arranged to electrically connect the I/O connector to the speaker.
8. The computer system of claim 7 , wherein the I/O connector is configured on a front panel of the case.
9. The computer system of claim 7 , wherein the I/O connector is configured on a side panel of the case.
10. The computer system of claim 7 , wherein the I/O connector is I/O connector is an audio inputting port or an audio outputting port.
11. The computer system of claim 7 , wherein when the computer system is turned on, the control circuit is arranged to selectively connect one of the I/O connector or the speaker to an audio codec of the computer system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/944,891 US20110058694A1 (en) | 2005-02-03 | 2010-11-12 | Audio Signal Switching Apparatus |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW94103426 | 2005-02-03 | ||
TW094103426A TWI265450B (en) | 2005-02-03 | 2005-02-03 | An audio signal switching apparatus |
US11/341,102 US7856109B2 (en) | 2005-02-03 | 2006-01-27 | Audio signal switching apparatus |
US12/944,891 US20110058694A1 (en) | 2005-02-03 | 2010-11-12 | Audio Signal Switching Apparatus |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/341,102 Continuation US7856109B2 (en) | 2005-02-03 | 2006-01-27 | Audio signal switching apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110058694A1 true US20110058694A1 (en) | 2011-03-10 |
Family
ID=36756576
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/341,102 Active 2029-10-11 US7856109B2 (en) | 2005-02-03 | 2006-01-27 | Audio signal switching apparatus |
US12/944,891 Abandoned US20110058694A1 (en) | 2005-02-03 | 2010-11-12 | Audio Signal Switching Apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/341,102 Active 2029-10-11 US7856109B2 (en) | 2005-02-03 | 2006-01-27 | Audio signal switching apparatus |
Country Status (2)
Country | Link |
---|---|
US (2) | US7856109B2 (en) |
TW (1) | TWI265450B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI300533B (en) * | 2006-05-01 | 2008-09-01 | Asustek Comp Inc | Electronic equipment |
US20080004074A1 (en) * | 2006-06-28 | 2008-01-03 | Ming-Wei Wang | Complex audio detection apparatus |
US7912501B2 (en) | 2007-01-05 | 2011-03-22 | Apple Inc. | Audio I/O headset plug and plug detection circuitry |
TWM333021U (en) * | 2007-12-18 | 2008-05-21 | Princeton Technology Corp | Audio playing apparatus |
JP4929346B2 (en) * | 2009-12-28 | 2012-05-09 | 株式会社東芝 | Electronics |
CN113395635A (en) * | 2021-05-12 | 2021-09-14 | 深圳市天视通视觉有限公司 | Earphone interface circuit and terminal |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5768601A (en) * | 1996-01-17 | 1998-06-16 | Compaq Computer Corporation | Apparatus for eliminating audio noise when power is cycled to a computer |
US20020052990A1 (en) * | 1998-03-26 | 2002-05-02 | Reginia Chan | Low-power audio CD player for portable computers |
US6675233B1 (en) * | 1998-03-26 | 2004-01-06 | O2 Micro International Limited | Audio controller for portable electronic devices |
US20040249489A1 (en) * | 2001-09-06 | 2004-12-09 | Dick Robert James | Method and apparatus elapsed playback timekeeping of variable bit-rate digitally encoded audio data files |
US20050085934A1 (en) * | 2003-10-06 | 2005-04-21 | Samsung Electronics Co., Ltd. | Computer system to output an external audio signal |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2367042Y (en) | 1999-01-20 | 2000-03-01 | 海信集团公司 | Automatic changing-over switch for loudspeaker |
CN2572463Y (en) | 2002-09-04 | 2003-09-10 | 联想(北京)有限公司 | Controller for auxiliary power supply used in computer switching off state |
-
2005
- 2005-02-03 TW TW094103426A patent/TWI265450B/en active
-
2006
- 2006-01-27 US US11/341,102 patent/US7856109B2/en active Active
-
2010
- 2010-11-12 US US12/944,891 patent/US20110058694A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5768601A (en) * | 1996-01-17 | 1998-06-16 | Compaq Computer Corporation | Apparatus for eliminating audio noise when power is cycled to a computer |
US20020052990A1 (en) * | 1998-03-26 | 2002-05-02 | Reginia Chan | Low-power audio CD player for portable computers |
US6675233B1 (en) * | 1998-03-26 | 2004-01-06 | O2 Micro International Limited | Audio controller for portable electronic devices |
US20040249489A1 (en) * | 2001-09-06 | 2004-12-09 | Dick Robert James | Method and apparatus elapsed playback timekeeping of variable bit-rate digitally encoded audio data files |
US20050085934A1 (en) * | 2003-10-06 | 2005-04-21 | Samsung Electronics Co., Ltd. | Computer system to output an external audio signal |
Also Published As
Publication number | Publication date |
---|---|
TWI265450B (en) | 2006-11-01 |
US7856109B2 (en) | 2010-12-21 |
US20060171545A1 (en) | 2006-08-03 |
TW200629137A (en) | 2006-08-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10652662B2 (en) | Connectors for data transfer | |
US20110058694A1 (en) | Audio Signal Switching Apparatus | |
EP1901175B1 (en) | Audio system, and USB/UART common communication system for the same | |
GB2553875A (en) | Connectors for audio data transfer | |
US11431181B2 (en) | Wireless sound output device with charging function | |
US10021477B2 (en) | Backward compatible system and method for using 4P audio jack to provide power and signal to headset with active noise cancellation | |
US7664560B2 (en) | Portable media player with common earphone transmission port and signal adaptor cable thereof | |
EP1696313B9 (en) | An audio signal switching apparatus | |
KR100466098B1 (en) | Audio port/USB port integrated sound source reproduction device and its signal transaction Method | |
US20080004074A1 (en) | Complex audio detection apparatus | |
CN109218914B (en) | Audio playing device and audio transmission circuit | |
US20070009131A1 (en) | Portable audio system | |
US7778428B2 (en) | Sound-source signal processing module | |
CN101505333A (en) | Mobile terminal having direct recording function and direct recording method thereof | |
US20040131341A1 (en) | Portable digital audio/video device | |
US6981076B1 (en) | Mechanism to disable dynamically a computer audio input/output connector | |
US11409494B2 (en) | In-wall wirelessly operable speaker control system | |
KR20010025789A (en) | A Mouse Having Speaker Mounted Within | |
US20050107900A1 (en) | Portable computer adapted for use with a loudspeaker unit to reproduce audio playback information with surround sound effects | |
CN100547540C (en) | Electronic installation | |
US20080037208A1 (en) | Computer system with extended module | |
KR20110094915A (en) | Vibrating mouse built-in speaker | |
US20070254528A1 (en) | Electronic device | |
KR20040088293A (en) | Speaker control device for notebook computer | |
KR20000049666A (en) | A computer prepared microphone and headphone jack in the front |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ASUSTEK COMPUTER INC., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIN, WEI-PO;LIN, HSIN-TSO;HSU, HSIEN-YUEH;REEL/FRAME:025349/0952 Effective date: 20060127 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |