CN205068364U - Sound card - Google Patents
Sound card Download PDFInfo
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- CN205068364U CN205068364U CN201520843950.0U CN201520843950U CN205068364U CN 205068364 U CN205068364 U CN 205068364U CN 201520843950 U CN201520843950 U CN 201520843950U CN 205068364 U CN205068364 U CN 205068364U
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- sound card
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Abstract
The utility model provides a sound card, external device make USB expansion interface be used for using as external external device's in usb signal I/O interface expansion interface under the control of USB HUB circuit, are equivalent to again for external equipment provides at least one USB interface that this USB expansion interface of external device accessible carries out the data interaction with third party's equipment, has expanded external device's application.
Description
Technical field
The application relates to a kind of sound card.
Background technology
Along with the development of society, people's living standard is while improving constantly, and the demand for cultural life is vigorous gradually, and public recreation more and more becomes a kind of trend.
Music, as a kind of mode can moulding people's inner world, for a long time, is the major distraction mode of people always.Popular gradually along with external sound card, enjoying beautiful music by external sound card has become popular widespread demand.
But, when external unit adopts USB interface to be connected with external sound card, the USB interface of external unit must be taken, especially when external unit has a USB interface, limit the application scenarios of external unit more.
Summary of the invention
The application provides a kind of sound card, comprise at least one usb signal input/output interface, at least one usb expansion interface, USBHUB circuit and USB control circuit, described usb signal input/output interface is electrically connected with described USB control circuit and at least one usb expansion interface described respectively by described USBHUB circuit, described usb signal input/output interface is used for carrying out data interaction for described sound card and external equipment, and described usb expansion interface is used for using as the expansion interface of the external equipment being external in described usb signal input/output interface.
Further, described sound card also comprises non-USB digital audio interface circuit, described non-USB digital audio interface circuit and the electrical connection of described USB control circuit; Described sound card inputs the first digital audio and video signals by described non-USB digital audio interface circuit and is exported by warp after described USB control circuit and described USBHUB circuit the second digital audio and video signals meeting usb protocol by described usb signal input/output interface; Or described sound card is by usb signal input/output interface input the 3rd digital audio and video signals and by meeting non-USB digital audio interface agreement the 4th digital audio and video signals through being exported by described non-USB digital audio interface circuit after described USBHUB circuit and described USB control circuit.
Further, described sound card also comprises non-USB digital audio interface circuit, conversion unit of protocol, codec and analog audio interface circuit, described non-USB digital audio interface circuit and the electrical connection of described conversion unit of protocol, described conversion unit of protocol and the electrical connection of described codec, described codec and the electrical connection of described analog audio interface circuit; Described sound card inputs the first digital audio and video signals by described non-USB digital audio interface circuit and exports the first simulated audio signal by warp after described conversion unit of protocol and codec by described analog audio interface circuit; Or described sound card inputs the second simulated audio signal by described analog audio interface circuit and exports the first digital audio and video signals by warp after described codec and described conversion unit of protocol by described non-USB digital audio interface.
Further, described sound card also comprises analog audio interface circuit and codec, and described analog audio interface circuit is electrically connected with described USB control circuit by codec; Described sound card inputs the second simulated audio signal by described analog audio interface circuit and is exported by warp after described codec, USB control circuit and USBHUB circuit the digital audio and video signals meeting usb protocol by described usb signal input/output interface; Or described sound card inputs the 3rd digital audio and video signals by usb signal input/output interface and exports the first simulated audio signal by warp after described USBHUB circuit, described USB control circuit and described codec by analog audio interface circuit.
Further, the analog audio interface in described analog audio interface circuit comprises capacitor microphone input interface, moving coil type microphone input interface and headset output interface.
Further, the digital audio interface in described non-USB digital audio interface circuit comprises digital microphone input interface.
Further, the digital audio interface in digital audio interface circuit comprises coaxial digital output interface, coaxial digital input interface, optical fiber input interface and is integrated with the coaxial audio interface of 6.35mm of input and output channel.
Further, described digital audio interface circuit comprises digital isolating transformer circuit and digital audio interface, and described digital isolating transformer circuit is used for carrying out signal isolation to the digital audio and video signals inputed or outputed by described digital audio interface.
Further, described sound card also comprises the memory interface storing read-write cell and be electrically connected with storage read-write cell, and/or storage unit;
Described storage read-write cell is electrically connected with described usb expansion interface, for the digital audio and video signals write from usb expansion interface being connected to the external memory devices of described memory interface, or described storage unit; Or, for reading from described external memory devices, or the digital audio and video signals of described storage unit, and be sent to described usb expansion interface.
Further, described sound card also comprises single chip circuit, and described single chip circuit is electrically connected with described USB control circuit; Described sound card also comprises the state indication unit be electrically connected with single chip circuit, and described state indication unit indicates the duty of sound card under the control of single chip circuit.
The beneficial effect of the application is: the application provides a kind of sound card, external equipment makes usb expansion interface for using as the expansion interface of the external equipment being external in usb signal input/output interface under the control of USBHUB circuit, be equivalent to again for external device provides at least one USB interface, external equipment carries out data interaction by this usb expansion interface and third party device, extends the application of external equipment.
Accompanying drawing explanation
Fig. 1 is a kind of example structure schematic diagram of the application;
Fig. 2 is the another kind of example structure schematic diagram of the application;
Fig. 3 is the another kind of example structure schematic diagram of the application;
Fig. 4 is the another kind of example structure schematic diagram of the application;
Fig. 5 is the another kind of example structure schematic diagram of the application.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
The application provides a kind of sound card, as shown in Figure 1, comprise at least one usb signal input/output interface, at least one usb expansion interface, USBHUB circuit and USB control circuit, usb signal input/output interface is electrically connected with USB control circuit and at least one usb expansion interface respectively by USBHUB circuit, usb signal input/output interface is used for carrying out data interaction for sound card and external equipment, and usb expansion interface is used for using as the expansion interface of the external equipment being external in usb signal input/output interface.
USB control circuit is used for the digital audio and video signals received to be converted to the digital audio and video signals meeting usb protocol; USBHUB circuit is used for as main USB device and the interface circuit from USB device, for providing the driving of usb expansion interface for main USB device.
External equipment is connected with the usb signal input/output interface of sound card, and another external equipment is connected with sound card by usb expansion interface, and usb signal input/output interface is connected by USBHUB circuit with usb expansion interface.External equipment makes usb expansion interface for using as the expansion interface of the external equipment being external in usb signal input/output interface under the control of USBHUB circuit, be equivalent to again for external device provides at least one USB interface, external equipment carries out data interaction by this usb expansion interface and another external equipment, that is: another external equipment is by this usb expansion interface supplied with digital signal, by warp after USBHUB circuit by usb signal input/output interface output digit signals; Or external equipment, by usb signal input/output interface supplied with digital signal, by usb expansion interface output digit signals, has thus enriched the application scenarios of external equipment by warp after USBHUB circuit.
In another kind of embodiment, as shown in Figure 2, sound card also comprises non-USB digital audio interface circuit, non-USB digital audio interface circuit and the electrical connection of USB control circuit.
In the present embodiment, so-called " non-USB digital audio interface circuit " mainly refers to the digital audio interface circuit of other type not comprising USB interface, and such as this area such as AES audio interface, coaxial audio interface, optical fiber audio interface, 6.5mm audio interface, 3.5mm audio interface is used for the audio interface of transmission of digital signals.
Sound card inputs the first digital audio and video signals by non-USB digital audio interface circuit and is exported by warp after USB control circuit and USBHUB circuit the second digital audio and video signals meeting usb protocol by usb signal input/output interface; Or sound card is by usb signal input/output interface input the 3rd digital audio and video signals and by meeting non-USB digital audio interface agreement the 4th digital audio and video signals through being exported by non-USB digital audio interface circuit after USBHUB circuit and USB control circuit.
In the present embodiment, sound card receives the first digital audio and video signals meeting non-USB digital audio interface agreement by non-USB digital audio interface circuit, through USB control circuit, the first digital audio and video signals is converted to the digital audio and video signals meeting usb protocol, then exports the second sound signal through USBHUB drives usb signal input/output interface;
Or, sound card meets the 3rd digital audio and video signals of usb protocol by the input of usb signal input/output interface, after USBHUB circuit and USB control circuit, export the digital audio and video signals meeting non-USB digital audio interface agreement, finally export the 4th digital audio and video signals via non-USB digital audio interface circuit.
In the present embodiment, sound card can connect the external unit with non-USB digital audio interface and another external equipment with usb signal input/output interface, the data interaction of the external unit realizing having non-USB digital audio interface and another external equipment with usb signal input/output interface.
In another embodiment, as shown in Figure 3, sound card also comprises non-USB digital audio interface circuit, conversion unit of protocol, codec and analog audio interface circuit, non-USB digital audio interface circuit and conversion unit of protocol electrical connection, conversion unit of protocol and codec electrical connection, codec and the electrical connection of analog audio interface circuit; Sound card inputs the first digital audio and video signals by non-USB digital audio interface circuit and exports the first simulated audio signal by warp after conversion unit of protocol and codec by analog audio interface circuit; Or sound card inputs the second simulated audio signal by analog audio interface circuit and exports the first digital audio and video signals by warp after codec and conversion unit of protocol by non-USB digital audio interface.
The integrated analog to digital conversion passage of codec and dac channel; Conversion unit of protocol supports multiple digital audio and video signals agreement, as SPDIF agreement, I2S agreement etc.
Sound card meets the first digital audio and video signals of non-USB digital audio interface agreement by non-USB digital audio interface circuit input, when non-USB digital audio interface be coaxial or optical fiber interface time, the digital audio and video signals of input is the first digital audio and video signals meeting SPDIF agreement, the first digital audio and video signals meeting SPDIF agreement is converted to the digital audio and video signals meeting I2S agreement by conversion unit of protocol, and inputs to the dac channel of codec.Digital audio and video signals is converted to simulated audio signal by dac channel, exports analog audio interface circuit to and exports.
In the present embodiment, sound card can connect the external unit with non-USB digital audio interface and another external unit with analog audio interface, the data interaction between the external unit realizing having non-USB digital audio interface and another external unit with analog audio interface.
In another embodiment, as shown in Figure 4, sound card also comprises analog audio interface circuit and codec, and analog audio interface circuit is electrically connected with USB control circuit by codec;
Sound card inputs the second simulated audio signal by analog audio interface circuit and is exported by warp after codec, USB control circuit and USBHUB circuit the digital audio and video signals meeting usb protocol by usb signal input/output interface;
Or sound card inputs the 3rd digital audio and video signals by usb signal input/output interface and exports the first simulated audio signal by warp after USBHUB circuit, USB control circuit and codec by analog audio interface circuit.
In the present embodiment, sound card can connect the external unit with analog audio interface and have another external unit of usb signal input/output interface, the data interaction between the external unit realizing having analog audio interface and another external unit with usb signal input/output interface.
In another embodiment, the analog audio interface in analog audio interface circuit comprises capacitor microphone input interface, moving coil type microphone input interface and headset output interface.
Analog audio interface comprises capacitor microphone input interface and moving coil type microphone input interface, supports the input of dissimilar microphone signal, and the microphone signal of input exports by usb signal input/output interface, or is exported by non-USB digital audio interface.
Analog audio interface can have capacitor microphone input interface and moving coil type microphone input interface simultaneously, when two interfaces have microphone signal to input simultaneously, codec is inputed to after two-way microphone signal can being mixed, export eventually through usb signal input/output interface, or exported by non-USB digital audio interface.
Analog audio interface comprises headset output interface, monitors after can being converted to simulated audio signal to usb audio signal and non-USB digital audio interface input/output interface or input digital audio signal.
In another embodiment, the digital audio interface in non-USB digital audio interface circuit comprises digital microphone input interface, for supporting that digital microphone signal inputs.
In another embodiment, the digital audio interface in digital audio interface circuit comprises coaxial digital output interface, coaxial digital input interface, optical fiber input interface and is integrated with the coaxial audio interface of 6.35mm of input and output channel.
In another embodiment, digital audio interface circuit comprises digital isolating transformer circuit and digital audio interface, numeral isolating transformer circuit is used for carrying out signal isolation to the digital audio and video signals inputed or outputed by digital audio interface, to improve the quality of the digital audio and video signals inputed or outputed.
In another embodiment, as shown in Figure 5, sound card also comprises the memory interface storing read-write cell and be electrically connected with storage read-write cell, and/or storage unit; Store read-write cell to be electrically connected with usb expansion interface, for the digital audio and video signals write from usb expansion interface being connected to the external memory devices of memory interface, or storage unit; Or, for reading from external memory devices, or the digital audio and video signals of storage unit, and be sent to usb expansion interface.
In the present embodiment, external equipment can be PC, the digital audio and video signals of sound card sends digital audio and video signals by usb signal input/output interface to PC, PC can perform recording operation to the digital audio and video signals received, and recording file is sent to USBHUB circuit by usb signal input/output interface, and then be sent to usb expansion interface, store read-write cell to be electrically connected with usb expansion interface, recording file write from usb expansion interface is connected to the external memory devices of memory interface, or storage unit; Or, read from external memory devices, or the recording of storage unit, and be sent to usb expansion interface, and then be sent to USBHUB circuit, be sent to eventually through usb signal input/output interface the broadcasting that PC carries out recording file.
In another embodiment, usb expansion interface comprises the double-deck female seat of USB.
In another embodiment, sound card also comprises single chip circuit, and single chip circuit is electrically connected with USB control circuit, for controlling the work simulation of USB control circuit, in other embodiments, single chip circuit is also for controlling the mode of operation of codec, conversion unit of protocol; Sound card also comprises the state indication unit be electrically connected with single chip circuit, and state indication unit indicates the duty of sound card under the control of single chip circuit.Adopt the duty of state indication unit to sound card to indicate, user can be facilitated to carry out visualized operation.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.
Claims (10)
1. a sound card, it is characterized in that, comprise at least one usb signal input/output interface, at least one usb expansion interface, USBHUB circuit and USB control circuit, described usb signal input/output interface is electrically connected with described USB control circuit and at least one usb expansion interface described respectively by described USBHUB circuit, described usb signal input/output interface is used for carrying out data interaction for described sound card and external equipment, and described usb expansion interface is used for using as the expansion interface of the external equipment being external in described usb signal input/output interface.
2. sound card as claimed in claim 1, is characterized in that:
Described sound card also comprises non-USB digital audio interface circuit, described non-USB digital audio interface circuit and the electrical connection of described USB control circuit;
Described sound card inputs the first digital audio and video signals by described non-USB digital audio interface circuit and is exported by warp after described USB control circuit and described USBHUB circuit the second digital audio and video signals meeting usb protocol by described usb signal input/output interface; Or described sound card is by usb signal input/output interface input the 3rd digital audio and video signals and by meeting non-USB digital audio interface agreement the 4th digital audio and video signals through being exported by described non-USB digital audio interface circuit after described USBHUB circuit and described USB control circuit.
3. sound card as claimed in claim 1, is characterized in that:
Described sound card also comprises non-USB digital audio interface circuit, conversion unit of protocol, codec and analog audio interface circuit, described non-USB digital audio interface circuit and the electrical connection of described conversion unit of protocol, described conversion unit of protocol and the electrical connection of described codec, described codec and the electrical connection of described analog audio interface circuit;
Described sound card inputs the first digital audio and video signals by described non-USB digital audio interface circuit and exports the first simulated audio signal by warp after described conversion unit of protocol and codec by described analog audio interface circuit; Or described sound card inputs the second simulated audio signal by described analog audio interface circuit and exports the first digital audio and video signals by warp after described codec and described conversion unit of protocol by described non-USB digital audio interface.
4. sound card as claimed in claim 1, is characterized in that:
Described sound card also comprises analog audio interface circuit and codec, and described analog audio interface circuit is electrically connected with described USB control circuit by codec;
Described sound card inputs the second simulated audio signal by described analog audio interface circuit and is exported by warp after described codec, USB control circuit and USBHUB circuit the digital audio and video signals meeting usb protocol by described usb signal input/output interface;
Or described sound card inputs the 3rd digital audio and video signals by usb signal input/output interface and exports the first simulated audio signal by warp after described USBHUB circuit, described USB control circuit and described codec by analog audio interface circuit.
5. the sound card as described in claim 3 or 4, is characterized in that, the analog audio interface in described analog audio interface circuit comprises capacitor microphone input interface, moving coil type microphone input interface and headset output interface.
6. sound card as claimed in claim 2 or claim 3, it is characterized in that, the digital audio interface in described non-USB digital audio interface circuit comprises digital microphone input interface.
7. sound card as claimed in claim 2 or claim 3, it is characterized in that, the digital audio interface in digital audio interface circuit comprises coaxial digital output interface, coaxial digital input interface, optical fiber input interface and is integrated with the coaxial audio interface of 6.35mm of input and output channel.
8. sound card as claimed in claim 2 or claim 3, it is characterized in that, described digital audio interface circuit comprises digital isolating transformer circuit and digital audio interface, and described digital isolating transformer circuit is used for carrying out signal isolation to the digital audio and video signals inputed or outputed by described digital audio interface.
9. sound card as claimed in claim 1, is characterized in that, described sound card also comprises the memory interface storing read-write cell and be electrically connected with storage read-write cell, and/or storage unit;
Described storage read-write cell is electrically connected with described usb expansion interface, for the digital audio and video signals write from usb expansion interface being connected to the external memory devices of described memory interface, or described storage unit; Or, for reading from described external memory devices, or the digital audio and video signals of described storage unit, and be sent to described usb expansion interface.
10. sound card as claimed in claim 1, it is characterized in that, described sound card also comprises single chip circuit, and described single chip circuit is electrically connected with described USB control circuit;
Described sound card also comprises the state indication unit be electrically connected with single chip circuit, and described state indication unit indicates the duty of sound card under the control of single chip circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843950.0U CN205068364U (en) | 2015-10-28 | 2015-10-28 | Sound card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843950.0U CN205068364U (en) | 2015-10-28 | 2015-10-28 | Sound card |
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|---|---|
| CN205068364U true CN205068364U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520843950.0U Active CN205068364U (en) | 2015-10-28 | 2015-10-28 | Sound card |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109101213A (en) * | 2018-08-23 | 2018-12-28 | 广州酷狗计算机科技有限公司 | Control the method, apparatus and storage medium of sound card transmission audio |
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2015
- 2015-10-28 CN CN201520843950.0U patent/CN205068364U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109101213A (en) * | 2018-08-23 | 2018-12-28 | 广州酷狗计算机科技有限公司 | Control the method, apparatus and storage medium of sound card transmission audio |
| CN109101213B (en) * | 2018-08-23 | 2021-07-06 | 广州酷狗计算机科技有限公司 | Method, device and storage medium for controlling sound card to transmit audio |
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