CN103188589A - Audio equipment adaptor - Google Patents
Audio equipment adaptor Download PDFInfo
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- CN103188589A CN103188589A CN 201110444037 CN201110444037A CN103188589A CN 103188589 A CN103188589 A CN 103188589A CN 201110444037 CN201110444037 CN 201110444037 CN 201110444037 A CN201110444037 A CN 201110444037A CN 103188589 A CN103188589 A CN 103188589A
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- audio
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- frequency apparatus
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Abstract
An audio equipment adaptor comprises a first through circuit, a second through circuit, a switch unit and an audio interface. When the switch unit connects the first through circuit to the audio interface, a digital/analog converter converts an audio signal into a first carrier signal, and the first carrier signal is transmitted through an alternating current line after being coupled to an alternating voltage signal by a first coupler. When the second through circuit is connected with the audio interface, a second coupler separates a second carrier signal from an alternating voltage signal coupled with the second carrier signal, and the second carrier signal is output to the audio interface after being converted into an audio signal by an analog/digital converter. The communication among audio equipments can be realized by the audio equipment adaptor and the alternating current power line, so that receiving ranges of the audio equipments are expanded greatly.
Description
Technical field
The present invention relates to a kind of audio frequency apparatus adapter.
Background technology
Usually the mode that adopts when sharing the messages such as music in the audio frequency apparatus that is arranged in the room is to set up a loud speaker one earphone in this room, and makes this loud speaker or earphone be connected the music that this audio frequency apparatus is exported with this audio frequency apparatus to come out.But, because this loud speaker and earphone all be arranged in this room, so music sharing mode has like this limited the scope of music reception, namely can only receive this music message in a room, and can't receive this music message in another room.Perhaps by audio frequency amplifier and long audio cable the music message of audio frequency apparatus is transferred to loud speaker or the earphone in another room, like this then cause the messy of the increase of cost and cable.
Summary of the invention
In view of above content, be necessary to provide a kind of audio frequency apparatus adapter, share the range of receiving of message to enlarge audio frequency apparatus.
A kind of audio frequency apparatus adapter, comprise an ac power plug, one audio interface, one first built-up circuit, one second built-up circuit and a switch element, this ac power plug is used for grafting one AC Power supply socket and receives ac voltage signal, this audio interface is used for grafting one audio frequency apparatus and comes received audio signal, this switch element is connected between this first and second built-up circuit so that this first and second built-up circuit is switched and this first built-up circuit is connected maybe with this audio interface this second built-up circuit is connected with this audio interface, this first built-up circuit comprises a digital/analog converter and one first coupler, this second built-up circuit comprises an analog/digital converter and one second coupler, this first digital/analog converter is connected to this switch element and this first coupler, this first coupler also is connected on this ac power plug, this analog/digital converter is connected to this switch element and this second coupler, this second coupler also is connected on this ac power plug, when this switch element is connected to this audio interface with this first built-up circuit, this first digital/analog converter receives this audio frequency apparatus by the audio signal of audio interface output, and this audio signal is converted to a first carrier signal, this first coupler is coupled to this first carrier signal on the ac voltage signal that receives from this ac power plug, and will be coupled with by this AC Power supply socket on the alternating current transmission line that ac voltage signal transfers to this AC Power supply socket is connected of this first carrier signal, when this switch element is connected to this audio interface with this second built-up circuit, this second coupler receives from the ac voltage signal that is coupled with one second carrier signal on this AC power line, and the ac voltage signal that is coupled with this second carrier signal separated to isolate this second carrier signal, this analog/digital converter converts this second carrier signal to audio signal, and exports this audio signal to this audio frequency apparatus by audio interface.
The switching selectivity ground of audio frequency apparatus adapter of the present invention by its switch element is connected to this audio interface with this first built-up circuit and maybe this second built-up circuit is connected to this audio interface.When selection is connected this first built-up circuit with this audio interface, this digital/analog converter is converted to the first carrier signal with this audio signal, and transmits by this alternating current transmission line after by this first coupler this first carrier signal being coupled to this ac voltage signal.When selecting this second built-up circuit to be connected with this audio interface, this second coupler is isolated this second carrier signal with the ac voltage signal that is coupled with second carrier signal in this alternating current transmission line, and export this audio interface to after by this analog/digital converter this second carrier signal being converted to this audio signal, so, can realize communication between the audio frequency apparatus by this audio frequency apparatus adapter and this AC power cord, need not by audio frequency amplifier and long audio cable the music message of audio frequency apparatus to be transferred to loud speaker or the earphone in another room, thereby enlarged the range of receiving of audio frequency apparatus greatly.
Description of drawings
The invention will be further described in conjunction with embodiment with reference to the accompanying drawings.
Fig. 1 is the schematic diagram of the preferred embodiments of audio frequency apparatus adapter of the present invention.
Fig. 2 is the block diagram of Fig. 1 sound intermediate frequency device adapter.
Fig. 3 is the block diagram of the voltage conversion circuit in the audio frequency apparatus adapter of the present invention.
Fig. 4 is the block diagram under the audio frequency apparatus adapter use state of the present invention.
Fig. 5 is the block diagram of the part of the signal converting under the audio frequency apparatus adapter use state of the present invention.
The main element symbol description
| |
10 |
| |
20 |
| |
30 |
| First built-up |
40 |
| The |
41 |
| Digital/ |
42 |
| |
43 |
| First alternating |
44 |
| Second built-up |
50 |
| The decompress(ion) |
51 |
| Analog/ |
52 |
| |
53 |
| Second alternating |
54 |
| |
60 |
| AC |
70 |
| First AC |
71 |
| Second AC |
72 |
| |
80 |
| First |
81 |
| Second |
82 |
| Alternating |
90 |
| The audio |
100 |
| The first audio |
101 |
| The second audio |
102 |
| |
200 |
| The 3rd alternating |
210 |
| AC/ |
220 |
| Reducing |
230 |
| |
240 |
| |
300 |
| |
400 |
Following embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
See also Fig. 1-3, the preferred embodiments of audio frequency apparatus adapter 100 of the present invention comprises a housing 10, an ac power plug 20, an audio interface 30, one first built-up circuit 40, one second built-up circuit 50, a switch element 60 and a voltage conversion circuit 200.This ac power plug 20 is arranged on this housing 10, in order to the AC Power supply socket 70 of pegging graft.This audio interface 30 is arranged on this housing 10, in order to connect an audio frequency apparatus 80.This switch element 60 be connected this first, second built-up circuit 40 and 50 and audio interface 30 between, make this first built-up circuit 40 be connected to this audio interface 30 or make this second built-up circuit 50 be connected to this audio interface 30 so that this first and second built-up circuit 40 and 50 is switched.When the audio frequency apparatus 80 that is connected with this audio frequency apparatus adapter 100 during as the transmission end, switch this switch element 60 this first built-up circuit 40 is connected with this audio interface 30.When the audio frequency apparatus 80 that is connected with this audio frequency apparatus adapter 100 during as receiving terminal, switch this switch element 60 this second built-up circuit 50 is connected with this audio interface 30.In the present embodiment, this switch element 60 is a manual switch.
This first built-up circuit 40 comprises a compression control chip 41, a digital/analog converter 42, one first coupler 43 and one first alternating current filter 44.This second built-up circuit 50 comprises a decompress(ion) control chip 51, an analog/digital converter 52, one second coupler 53 and one second alternating current filter 54.
This compression control chip 41 is connected to this switch element 60.This digital/analog converter 42 is connected between this compression control chip 41 and this first coupler 43.This first coupler 43 also is connected to this ac power plug 20 by this first alternating current filter 44.This ac power plug 20 also connects this second coupler 53 by this second alternating current filter 54.This analog/digital converter 52 is connected between this second coupler 53 and this decompress(ion) control chip 51.This decompress(ion) control chip 51 also is connected to this switch element 60.
This voltage conversion circuit 200 comprises one the 3rd alternating current filter 210, an AC/DC converter 220, a reducing transformer 230 and a direct current filter 240.The 3rd alternating current filter 210 is connected to this ac power plug 20 and receives this ac voltage signal, and this AC power is carried out filtering.This AC/DC converter 220 is connected between the 3rd alternating current filter 210 and this reducing transformer 230, ac supply signal being converted to a direct current voltage signal, and exports this d. c. voltage signal to this reducing transformer 230.This DC filter 240 is connected between this reducing transformer 230 and this audio interface 30 this d. c. voltage signal is carried out export the d. c. voltage signal after this step-down to this audio interface 30 after the filtering, to provide operating voltage to the audio frequency apparatus 80 that is connected to this audio interface 30.
Please refer to Fig. 4 and 5, the existing operation principle that specifies this audio frequency apparatus adapter 100 by an example.Now need to utilize this alternating current transmission line 90 to make first audio frequency apparatus 81 in one first room 300, as music player, second audio frequency apparatus 82 with in one second room 400 as audio amplifier, carries out communication.An audio frequency apparatus adapter is pegged graft in first AC Power supply socket 71 in this first room 300, and another audio frequency apparatus adapter is pegged graft in second AC Power supply socket 72 in this second room 400.For ease of explanation, in Fig. 4, as one first audio frequency apparatus adapter, and label is 101 with the audio frequency apparatus adapter in this first room 300, and with the audio frequency apparatus adapter in this second room 400 as one second audio frequency apparatus adapter, and label is 102.But internal structure and the function of this first and second audio frequency apparatus adapter 101,102 internal structure and function and above-mentioned audio frequency apparatus adapter 100 are identical.
When needs make this first audio frequency apparatus 81 to these second audio frequency apparatus, 82 transmission data, this first audio frequency apparatus 81 is plugged in the audio interface 30 of this first audio frequency apparatus adapter 101, and this second audio frequency apparatus 82 is plugged in the audio interface 30 of this second audio frequency apparatus adapter 102.Make this first audio frequency apparatus 81 as the transmission end by the switch element 60 that switches this first audio frequency apparatus adapter 101.Make this second audio frequency apparatus 82 as receiving terminal by the switch element 60 that switches in this second audio frequency apparatus adapter 102.
During work, these first audio frequency apparatus, 81 output audio signals transfer to this digital/analog converter 42 to the audio interface 30 of this first audio frequency apparatus adapter 101 after 41 pairs of these audio signals of compression control chip in this first audio frequency apparatus adapter 101 are compressed package.This digital/analog converter 42 transfers to this first coupler 43 after converting this audio signal compression package to a carrier signal.This first coupler 43 is coupled to this carrier signal on the ac voltage signal that receives from this first AC Power supply socket 71, and is undertaken exporting on this alternating current transmission line 90 by this ac power plug 20 after the filtering by 44 pairs of these ac voltage signals that are coupled with carrier signal of this first alternating current filter.
The ac voltage signal that this alternating current transmission line 90 will be coupled with carrier signal transfers to this second alternating current filter 54 by the ac power plug 20 that is connected with this second AC Power supply socket 72 and filters.After obtaining this carrier signal after the ac voltage signal that is coupled with carrier signal after second coupler 53 in this second audio frequency apparatus adapter 102 will filter separates, and this carrier signal transferred to its analog/digital converter 52.This analog/digital converter 52 converts behind the audio signal compression package with this audio signal compression package transmission this carrier signal to corresponding decompress(ion) control chip 51 to.The audio signal compression package that 51 pairs of this decompress(ion) control chips receive carries out obtaining this audio signal behind the decompress(ion), and this audio signal is exported in this second audio frequency apparatus 82 by its switch element 60 and audio interface 30.
In other embodiments, this compression control chip 41, this decompress(ion) control chip 51, this first to the 3rd alternating current filter 44,54,210 and this DC filter 240 owing to only play the effect of filtering so all can omit.This switch element 60 also can be automatic control switch, then when this audio interface 30 receives audio signal this first built-up circuit 40 is connected to this audio interface 30 and makes the audio frequency apparatus 80 that is connected with this audio frequency apparatus adapter 100 as the transmission end when this automatic control switch recognizes.Then this second built-up circuit 50 is connected to this audio interface 30 when receiving audio signal to this audio interface 30 and makes the audio frequency apparatus 80 that is connected with this audio frequency apparatus adapter 100 as receiving terminal when this automatic control switch is unidentified.When this audio frequency apparatus 80 had external operating voltage to provide, the voltage conversion circuit 200 in this audio frequency apparatus adapter also can omit.
The audio frequency apparatus 80 that the switching selectivity ground of audio frequency apparatus adapter 100 of the present invention by its switch element 60 will be connected with this audio frequency apparatus adapter 100 is as transmission end or receiving terminal.When the audio frequency apparatus of selecting to be connected with this audio frequency apparatus adapter 100 80 during as the transmission end, this audio frequency apparatus adapter 100 is converted to carrier signal by its digital/analog converter 42 with the audio signal of this audio frequency apparatus 80 outputs, and transmits by this alternating current transmission line 90 after by this first coupler 43 this carrier signal being coupled to this ac voltage signal.When the audio frequency apparatus of selecting to be connected with this audio frequency apparatus adapter 100 80 during as receiving terminal, this audio frequency apparatus adapter 100 is isolated this carrier signal by its second coupler 53 with the ac voltage signal that is coupled with carrier signal in this alternating current transmission line 90, and exports this audio interface 30 to after by this analog/digital converter 52 this carrier signal being converted to this audio signal.So, can realize communication between the audio frequency apparatus by this audio frequency apparatus adapter 100 and this alternating current transmission line 90, thereby enlarge the range of receiving of audio frequency apparatus greatly.
Claims (7)
1. audio frequency apparatus adapter, comprise an ac power plug, one audio interface, one first built-up circuit, one second built-up circuit and a switch element, this ac power plug is used for grafting one AC Power supply socket and receives ac voltage signal, this audio interface is used for grafting one audio frequency apparatus and comes received audio signal, this switch element is connected between this first and second built-up circuit so that this first and second built-up circuit is switched and this first built-up circuit is connected maybe with this audio interface this second built-up circuit is connected with this audio interface, this first built-up circuit comprises a digital/analog converter and one first coupler, this second built-up circuit comprises an analog/digital converter and one second coupler, this first digital/analog converter is connected to this switch element and this first coupler, this first coupler also is connected on this ac power plug, this analog/digital converter is connected to this switch element and this second coupler, this second coupler also is connected on this ac power plug, when this switch element is connected to this audio interface with this first built-up circuit, this first digital/analog converter receives this audio frequency apparatus by the audio signal of audio interface output, and this audio signal is converted to a first carrier signal, this first coupler is coupled to this first carrier signal on the ac voltage signal that receives from this ac power plug, and will be coupled with by this AC Power supply socket on the alternating current transmission line that ac voltage signal transfers to this AC Power supply socket is connected of this first carrier signal, when this switch element is connected to this audio interface with this second built-up circuit, this second coupler receives from the ac voltage signal that is coupled with one second carrier signal on this AC power line, and the ac voltage signal that is coupled with this second carrier signal separated to isolate this second carrier signal, this analog/digital converter converts this second carrier signal to audio signal, and exports this audio signal to this audio frequency apparatus by audio interface.
2. audio frequency apparatus adapter as claimed in claim 1, it is characterized in that: this first built-up circuit also comprises a compression control chip, and this compression control chip is connected between this switch element and this digital/analog converter and exports this digital/analog converter to after the audio signal that receives is compressed package; This second built-up circuit comprises a decompress(ion) control chip, this decompress(ion) control chip is connected between this switch element and this analog/digital converter with this audio signal that the audio signal compression package that receives is decompressed to decompress out, and by this switch element with this audio signal transmission to this audio interface.
3. audio frequency apparatus adapter as claimed in claim 1, it is characterized in that: this first built-up circuit also comprises an alternating current filter, and this alternating current filter is connected between this first coupler and this ac power plug so that the ac voltage signal that is coupled with this first carrier signal that exports in this alternating current transmission line is carried out filtering.
4. audio frequency apparatus adapter as claimed in claim 1, it is characterized in that: this second built-up circuit also comprises an alternating current filter, this alternating current filter is connected between this ac power plug and this second coupler, so that the ac voltage signal that is coupled with this second carrier signal by this ac power plug input is carried out filtering.
5. audio frequency apparatus adapter as claimed in claim 1, it is characterized in that: this switch element is a manual switch.
6. audio frequency apparatus adapter as claimed in claim 1, it is characterized in that: this switch element is an automatic control switch, when this automatic control switch recognizes this audio interface audio signal when output arranged, this automatic control switch is connected to this audio interface with this first built-up circuit; To this audio interface audio signal when output arranged when this automatic control switch is unidentified, this automatic control switch is connected to this audio interface with this second built-up circuit.
7. audio frequency apparatus adapter as claimed in claim 1, it is characterized in that: this audio frequency apparatus adapter also comprises a voltage conversion circuit, wherein this voltage conversion circuit comprises an AC/DC converter and a reducing transformer, this AC/DC converter is connected between this ac power plug and this reducing transformer to receive this ac voltage signal, and exporting this reducing transformer to after converting this ac voltage signal to a direct current voltage signal, this reducing transformer also is connected to this audio interface to export the d. c. voltage signal after this step-down to this audio interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110444037 CN103188589A (en) | 2011-12-27 | 2011-12-27 | Audio equipment adaptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110444037 CN103188589A (en) | 2011-12-27 | 2011-12-27 | Audio equipment adaptor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103188589A true CN103188589A (en) | 2013-07-03 |
Family
ID=48679479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110444037 Pending CN103188589A (en) | 2011-12-27 | 2011-12-27 | Audio equipment adaptor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103188589A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112804020A (en) * | 2019-11-14 | 2021-05-14 | 瑞昱半导体股份有限公司 | Audio adapter with FM radio function and operation method thereof |
-
2011
- 2011-12-27 CN CN 201110444037 patent/CN103188589A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112804020A (en) * | 2019-11-14 | 2021-05-14 | 瑞昱半导体股份有限公司 | Audio adapter with FM radio function and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130703 |