CN113885826A - All-in-one machine equipment and loudspeaker expansion method, device and system thereof - Google Patents
All-in-one machine equipment and loudspeaker expansion method, device and system thereof Download PDFInfo
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- G06F3/16—Sound input; Sound output
- G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
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Abstract
The embodiment of the disclosure provides an all-in-one machine device and a loudspeaker extension method, device and system thereof, wherein the method comprises the following steps: detecting whether an external device inserted into an OPS interface has a loudspeaker, wherein the OPS interface at least comprises one of the following components: HDMI pin, USB pin, UART pin; under the condition that the external equipment is provided with a loudspeaker, modifying the configuration information of the OPS interface so that the OPS interface supports the audio data return of the all-in-one machine equipment; and sending the audio data to be played to the external equipment through the OPS interface. The embodiment of the disclosure utilizes the OPS interface of the existing all-in-one machine, and under the condition that the OPS interface is accessed into the external equipment, the audio data is reversely transmitted to the external equipment according to the OPS interface, so that the loudspeaker of the external equipment is used as the extension loudspeaker of the all-in-one machine, and the method can be used for loudspeaker extension of the all-in-one machine without adding extra equipment.
Description
Technical Field
The disclosure relates to the field of communication, and in particular to an all-in-one machine device and a loudspeaker expansion method, device and system thereof.
Background
Existing all-in-one equipment (such as smart televisions, smart computers and the like) are all built-in speakers, are generally limited by speaker devices, sound cavities, power supplies, structures and the like, are poor in power generation and sound effect, and the external speakers are not convenient to move, and occupy extra space, power supplies and audio lines.
Disclosure of Invention
In view of this, the embodiment of the present disclosure provides an all-in-one machine device and a speaker extension method, apparatus and system thereof, so as to solve the following problems in the prior art: all-in-one equipment is built-in speakers, and is poor in power generation and sound effect, and the external speakers need to occupy extra space, power supply and audio lines, and are not convenient to move.
On one hand, the embodiment of the disclosure provides a loudspeaker extension method of an all-in-one machine device, which includes: detecting whether an external device inserted by an OPS (Open plug capable Specification) interface has a loudspeaker, wherein the OPS interface at least comprises one of the following components: an HDMI (High Definition Multimedia Interface) pin, a USB pin, and a UART pin (Universal Asynchronous Receiver Transmitter/Transmitter); under the condition that the external equipment is provided with a loudspeaker, modifying the configuration information of the OPS interface so that the OPS interface supports the audio data return of the all-in-one machine equipment; and sending the audio data to be played to the external equipment through the OPS interface.
In some embodiments, in a case that the OPS interface includes an HDMI pin, before the detecting whether an external device inserted by the OPS interface has a speaker, the method further includes: and an undefined signal line is configured in the HDMI pin as a sound return signal line.
In some embodiments, the detecting whether the external device inserted by the OPS interface has a speaker includes: acquiring device channel information of the external device through a CEC signal line of the HDMI pin; and determining whether the external equipment has a loudspeaker according to the equipment sound channel information.
In some embodiments, the sending, to the external device through the OPS interface, audio data to be played includes: and sending audio data to be played to the external equipment through the sound return signal line of the HDMI pin.
In some embodiments, in the case that the OPS interface includes the USB pin, the modifying the configuration information of the selected audio data transmission interface includes: and modifying the configuration information of the USB pin of the all-in-one machine equipment from slave equipment to master equipment, and informing the external equipment to modify the configuration information of the USB pin on the external equipment from the master equipment to the slave equipment.
On the other hand, the embodiment of the present disclosure provides a speaker extension apparatus for an all-in-one machine device, including: the detection module is used for detecting whether an external device inserted by the OPS interface has a loudspeaker, wherein the OPS interface at least comprises one of the following components: HDMI pin, USB pin, UART pin; the modification module is used for modifying the configuration information of the OPS interface under the condition that the external equipment is provided with a loudspeaker, so that the OPS interface supports the audio data return of the all-in-one machine equipment; and the sending module is used for sending the audio data to be played to the external equipment through the OPS interface.
In some embodiments, further comprising: the device comprises a configuration module and a control module, wherein the configuration module is used for configuring an undefined signal line as a sound return signal line in an HDMI pin under the condition that the OPS interface comprises the HDMI pin.
In some embodiments, the detection module is specifically configured to: acquiring device channel information of the external device through a CEC signal line of the HDMI pin; and determining whether the external equipment has a loudspeaker according to the equipment sound channel information.
In some embodiments, the sending module is specifically configured to: and sending audio data to be played to the external equipment through the sound return signal line of the HDMI pin.
In some embodiments, the modification module is specifically configured to: when the OPS interface is connected by the USB pin, the configuration information of the USB pin of the all-in-one machine equipment is modified from slave equipment to master equipment, and the external equipment is informed to modify the configuration information of the USB pin matched with the external equipment from the master equipment to the slave equipment.
On the other hand, the embodiment of the present disclosure provides an all-in-one machine device, including: the loudspeaker expansion device of the all-in-one machine equipment disclosed by any embodiment of the disclosure.
In another aspect, an embodiment of the present disclosure provides a speaker extension system, including: the all-in-one machine equipment and the external equipment in any embodiment of the disclosure; the external device at least comprises: an OPS interface, a controller and a loudspeaker; the controller is configured to modify configuration information of the OPS interface so that the OPS interface supports audio data return of the all-in-one machine device; the OPS interface is configured to receive audio data to be played from the all-in-one device, and the OPS interface at least includes one of the following: HDMI pin, USB pin, UART pin; the speaker is configured to play the audio data.
In some embodiments, the external device further comprises: an audio decoder configured to decode the received audio data; a power amplifier configured to power amplify the decoded audio data.
The embodiment of the disclosure utilizes the OPS interface of the existing all-in-one machine, detects whether the external device has a loudspeaker under the condition of accessing the external device through the OPS interface, if the external device has the loudspeaker, audio data can be reversely transmitted to the external device according to the OPS interface, and then the loudspeaker of the external device is used as an extension loudspeaker of the all-in-one machine, and the method can be used for extending the loudspeaker of the all-in-one machine without adding additional devices, thereby improving the usability of the device.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a signal diagram defined by the OPS specification provided in the related art;
fig. 2 is a flowchart of a speaker extension method of an all-in-one machine device according to an embodiment of the disclosure;
fig. 3 is a schematic structural diagram of a speaker extension device of an all-in-one machine device according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a speaker extension system provided in an embodiment of the present disclosure;
fig. 5 is a schematic interface diagram of the all-in-one device and the OPS external device provided in the embodiment of the disclosure;
fig. 6 is a schematic connection diagram of the all-in-one device and the OPS external device provided in the embodiment of the disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.
In the related art, an OPS interface (the type of which includes an HDMI pin, a USB pin, a UART pin, etc.) is used as an extended host module interface, and a pluggable host can be inserted through the OPS interface, and an audio/video signal is sent to an all-in-one device through the OPS interface.
As shown in fig. 1, the content defined for the OPS specification, where plug Module is a Pluggable OPS external device, the OPS standard has defined that electrical connection is realized through 80PIN JAE interface, and the internal Signals include TMDS (one-way), DispalyPort (DP interface, one-way), UART (two-way), usb (host), Audio (Audio output, Control Signals) and Power (Power, DC 12-19V), where the Signals reaching the Panel Control Board are TMDS, DisplayPort and UART Signals.
In the integrated machine equipment product, two loudspeakers are generally contained, the loudspeaker is limited by the space of the integrated machine and the power of a board card audio amplifier, the loudspeaker is generally within 8 ohms and 15W, and a bass unit is not contained.
In order to obtain better sound effect, the integrated equipment keeps the SPDIF audio interface and the earphone interface, better tone quality experience can be obtained through the external loudspeaker, but the external equipment is not convenient to move, and needs an external connecting line and independent power supply. The special Sound Bar scheme requires an additional design and is not compatible with the existing products.
Based on the problems of the all-in-one device in the related art, the embodiment of the present disclosure considers that the existing all-in-one device (e.g., a smart tv) and an external device (e.g., a set top box) that transmits the playing resource file to the all-in-one device are improved, that is, the existing mode that the playing resource file can only be transmitted from the external device to the all-in-one device is adjusted, so that the all-in-one device can also transmit data to the external device.
Based on the above considerations, the embodiment of the present disclosure provides a speaker extension method for an all-in-one device, where the flow of the method is shown in fig. 2, and the method includes steps S201 to S203:
s201, detecting whether an external device inserted by an OPS interface has a loudspeaker, wherein the OPS interface at least comprises one of the following components: HDMI pin, USB pin, UART pin;
s202, under the condition that the external device is provided with a loudspeaker, modifying the configuration information of the OPS interface so that the OPS interface supports the audio data return of the all-in-one machine device;
and S203, sending the audio data to be played to the external equipment through the OPS interface.
The embodiment of the disclosure utilizes the OPS interface of the existing all-in-one machine, detects whether the external device has a loudspeaker under the condition of accessing the external device through the OPS interface, if the external device has the loudspeaker, audio data can be reversely transmitted to the external device according to the OPS interface, and then the loudspeaker of the external device is used as an extension loudspeaker of the all-in-one machine, and the method can be used for extending the loudspeaker of the all-in-one machine without adding additional devices, thereby improving the usability of the device.
For the OPS interface, one or more of an HDMI pin, a USB pin, and a UART pin may be adopted, and if the OPS interface is multiple, which interface of the OPS interface is used needs to be predetermined when the OPS interface is used, so as to perform audio data return later.
In the case where the OPS interface is set as the HDMI pin, an undefined signal line needs to be configured in the HDMI pin as an Audio Return Channel (ARC) signal line. The ARC function is a function in the HDMI standard, and is used for outputting digital audio of a television, and an undefined signal line is defined as an ARC signal line in the embodiment of the disclosure, so that sound return can be realized in an OPS interface which cannot realize sound return originally, and then the sound can be played on a speaker of an external device.
When detecting whether the external device inserted into the OPS interface has a speaker, the device channel information of the external device can be obtained through the CEC signal line of the HDMI pin, and then whether the external device has a speaker is determined according to the device channel information. When the audio data to be played is sent to the external equipment through the OPS interface, the audio data to be played can be sent to the external equipment through the sound return signal line of the HDMI pin.
Under the condition that the OPS interface is set as the USB pin, the USB pin is a bidirectional control interface, so when the configuration information of the selected audio data transmission interface is modified, the master-slave relationship of the USB pin needs to be modified, namely the configuration information of the USB pin of the all-in-one machine equipment is modified from the slave equipment to the master equipment, and the external equipment is informed to modify the configuration information of the USB pin on the external equipment from the master equipment to the slave equipment.
Under the condition that the OPS interface is set as a UART pin, the UART pin is a bidirectional interface and comprises TX and RX, wherein TX is a UART transmitting interface, RX is a UART receiving interface, and the all-in-one machine device transmits audio data to an external device through a UART signal line in the OPS interface.
In an implementable situation, it may also be determined whether the all-in-one device sends audio data to the external device according to an operating system of the external device and an operating system of the all-in-one device, for example, it may be detected whether the external device and the all-in-one device both have independent operating systems, and when both have independent operating systems, the audio data corresponding to the image data received by the all-in-one device may be directly played through the external device; when the two have independent operating systems, audio data is transmitted reversely through the OPS interface, namely the configuration information of the OPS interface is modified.
For example, when the all-in-one device is an android operating system and the external device is a Windows operating system, the playing resource file sent by the external device to the all-in-one device is backed up on the external device, and both devices have respective operating systems, the external device may only send the image data in the playing resource file to the all-in-one device, but the audio data in the playing resource file does not need to be sent to the external device again. This case also utilizes the external device connected to the OPS interface as an extension speaker, and is also within the scope of the embodiments of the present disclosure.
The embodiment of the disclosure solves the problems that the built-in loudspeaker of the standard configuration of the all-in-one machine equipment is insufficient in sound effect and power, provides the OPS interface of the all-in-one machine equipment to expand the external equipment as the loudspeaker, and improves the product performance.
The embodiment of the present disclosure further provides a speaker extension apparatus of an all-in-one machine device, a structural schematic of the apparatus is shown in fig. 3, and the apparatus includes:
the detection module 10 is configured to detect whether an external device inserted by the OPS interface has a speaker, where the OPS interface at least includes one of the following: HDMI pin, USB pin, UART pin; the modification module 20 is coupled with the detection module 10 and is used for modifying the configuration information of the OPS interface under the condition that the external device has a loudspeaker, so that the OPS interface supports the audio data return of the all-in-one machine device; and a sending module 30, coupled to the modifying module 20, for sending the audio data to be played to the external device through the OPS interface.
For the OPS interface, one or more of an HDMI pin, a USB pin, and a UART pin may be adopted, and if the OPS interface is multiple, which interface of the OPS interface is used needs to be predetermined when the OPS interface is used, so as to perform audio data return later.
The apparatus may further include a configuration module configured to configure an undefined signal line as a sound return signal line in the HDMI pin, if the OPS interface includes the HDMI pin. The ARC function is a function in the HDMI standard, and is used for outputting digital audio of a television, and an undefined signal line is defined as an ARC signal line in the embodiment of the disclosure, so that sound return can be realized in an OPS interface which cannot realize sound return originally, and then the sound can be played on a speaker of an external device.
The detection module may be specifically configured to: acquiring equipment channel information of the external equipment through a CEC signal line of an HDMI pin; and determining whether the external equipment has a loudspeaker according to the equipment channel information. Correspondingly, the sending module is specifically configured to: and sending the audio data to be played to the external equipment through the sound return signal line of the HDMI pin.
In a case that the OPS interface is set as the USB pin, since the USB pin is a bidirectional control interface, the modification module is specifically configured to: and modifying the configuration information of the USB pin of the all-in-one machine equipment from the slave equipment to the master equipment, and informing the external equipment to modify the configuration information of the USB pin matched with the external equipment from the master equipment to the slave equipment.
Under the condition that the OPS interface is set as the UART pin, the UART pin is a bidirectional interface and comprises TX and RX, wherein TX is a UART sending interface, RX is a UART receiving interface, the all-in-one machine equipment can also send audio data to external equipment through a UART signal line in the OPS interface, specific module structures are not repeated here, and technical personnel in the field can set the UART pin according to actual requirements.
The embodiment of the disclosure utilizes the OPS interface of the existing all-in-one machine, detects whether the external device has a loudspeaker under the condition of accessing the external device through the OPS interface, if the external device has the loudspeaker, audio data can be reversely transmitted to the external device according to the OPS interface, and then the loudspeaker of the external device is used as an extension loudspeaker of the all-in-one machine, and the method can be used for extending the loudspeaker of the all-in-one machine without adding additional devices, thereby improving the usability of the device.
The embodiment of the disclosure further provides an all-in-one machine device, the speaker extension device of the all-in-one machine device in the embodiment is used for interacting with external devices, and specific mechanisms are not repeated here.
An embodiment of the present disclosure further provides a speaker extension system, a structural schematic of which is shown in fig. 4, including:
the integrated machine equipment and the external equipment in the embodiment of the disclosure; wherein, external equipment includes at least: an OPS interface, a controller and a loudspeaker; the controller is configured to modify configuration information of the OPS interface so that the OPS interface supports audio data return of the all-in-one machine device; the OPS interface is configured to receive audio data to be played from the all-in-one device, and at least one of the following is included in the OPS interface: HDMI pin, USB pin, UART pin; a speaker configured to play audio data.
The external device may further include an audio decoder configured to decode the received audio data, and a power amplifier; a power amplifier configured to power amplify the decoded audio data.
The above embodiments are described below by way of example with reference to the accompanying drawings.
The OPS interface provided by the embodiment of the present disclosure includes 1 HDMI, 3 USB, and 1 UART.
Fig. 5 is a schematic diagram of interfaces between the all-in-one device and the OPS external device (i.e., external device), including 1 HDMI, 3 USB, and 1 UART, and further including a plurality of power supplies, status indication interfaces, and the like, which are not shown in the figure, and the USB, HDMI, and UART pins are mainly introduced here.
The HDMI pin is one-way interface, and general OPS external device end is Source end (Source end), and all-in-one equipment is Sink end (receiving end), and OPS external device can send video information to all-in-one equipment through the HDMI pin like this, and in general application scene promptly, it is that the OPS box sends audio and video to all-in-one equipment with the audio and video file through the HDMI pin in the OPS interface. For example, an OPS Windows box of Intel X86 i7 is adopted, a Windows operating system is operated during normal work, and audio and video data are sent to the all-in-one machine device through an HDMI pin for display.
In the disclosure, signals defined in the HDMI protocol standards such as TMDS, CEC and the like have been defined in the OPS standard interface, and an ARC signal line is defined in the reserved interface, which remains compatible with the existing OPS interface. After the OPS external device is inserted, the expansion loudspeaker can be found through the HDP interface all-IN-one machine device, the back transmission of audio data (from HDMI _ IN to HDMI _ OUT) is completed through functions of CEC, ARC and the like IN an HDMI protocol, and the digital signal passes through an audio decoder and an audio amplifier and finally drives the loudspeaker to sound.
The USB pin is a bidirectional control interface, and in general application, the OPS external device is HOST (master device), and the Slave device is an integrated device end, for example, the OPS external device may drive a USB network chip built in the integrated device through the USB pin, or drive a touch screen.
In the disclosure, since the all-in-one device is HOST, the USB pin of the OPS external device needs to be Slave, the USB HOST of the all-in-one device drives the USB audio decoder on the OPS external device, and the audio amplifier drives the speaker; if audio data needs to be expanded through the USB pin, USB configuration information of the all-in-one machine device needs to be adjusted, so that the two devices are respectively switched between the HOST mode and the Slave mode.
The UART pin is a bidirectional interface and comprises TX and RX, wherein TX is a UART transmitting interface, RX is a UART receiving interface, the all-in-one machine equipment transmits audio data to OPS external equipment through a UART signal line in the OPS interface, and the audio data are transmitted, decoded and amplified through an audio decoder, an audio amplifier and a loudspeaker, so that the loudspeaker is driven.
The other implementation scheme is that the all-in-one machine device sends audio data to wireless modules such as a Bluetooth module or WiFi through a UART signal wire in the OPS external device, and sends the audio data to an external wireless sound box through the wireless modules. Signals as OPS interfaces, which are used for transmission when transmitted
Fig. 6 is a schematic diagram illustrating connection between the all-in-one device and the OPS external device according to the embodiment of the disclosure.
The OPS external device comprises an OPS interface, power management, a controller, an audio decoder, a power amplifier and a loudspeaker. The OPS interface adopts a JAE TX25A/24A standard 80Pin inter-board connector for connecting power supply and signals; the power management is used for converting an OPS standard 19V power supply into a chip working voltage; the audio decoder comprises a controller and an audio decoder, completes the logic interaction with the all-in-one machine equipment, and drives a power amplifier at the rear stage after decoding the audio information; the power amplifier is responsible for amplifying audio data decoded by the audio decoder and driving the loudspeaker to work, and the controller is used for completing CEC communication with the all-in-one machine equipment, so that OPS external equipment can be identified by the all-in-one machine equipment, and the ARC function of the all-in-one machine equipment is turned on.
The standard OPS interface comprises HDMI-CEC and HPD data lines, CEC has the function of consumer electronics control, single-line data communication can be completed through a CEC protocol, and control among devices is realized; the HPD is a plug detection line that detects whether the HDMI function of the OPS has been correctly inserted into the all-in-one machine.
In the embodiment of the disclosure, a defined HDMI _ ARC data line is added to a general OPS 80PIN interface, and the PIN45 or PIN46 in the OPS interface (these two PINs are spare PINs in OPS and OPS-C, OPS-C +) can be used to return audio data to the OPS external device by using the ARC sound return function in the HDMI protocol, so as to achieve the function of implementing audio transmission through the OPS interface, and the standard OPS specification is compatible, without affecting the function of the standard product.
The scheme has the advantages that the standard OPS external device is actually a video source device and transmits audio and video data to the all-in-one machine device, so that in the OPS standard definition, a data interface is generally unidirectional, namely the OPS external device is transmitted to the all-in-one machine device. The embodiment of the disclosure utilizes a standby pin, realizes the reverse transmission of audio data through the ARC function, and can support stereo and audio effects above 5.1 because the ARC adopts a digital audio format, and the independent power supply of the OPS external equipment can support amplifiers and loudspeakers with larger power, thereby effectively solving the problems of insufficient tone quality, power and the like of loudspeakers of the all-in-one machine equipment.
After an OPS interface of the all-in-one machine is inserted into an OPS external device, the all-in-one machine can detect the insertion of the OPS external device, the all-in-one machine obtains extended loudspeaker device information such as supported sound channel information through an HDMI-CEC interface, and the all-in-one machine can set HDMI ARC as an audio return channel and send related audio data according to the loudspeaker information received by CEC. And finally, when the all-in-one machine device plays the audio and video file, the audio data can be transmitted to the OPS external device through the HDMI-ARC function, and the sound production is realized through the expansion loudspeaker.
As an extension form of the embodiment of the present disclosure, the transmission of the audio data may also be implemented through a UART pin in the OPS external device. For example, the bluetooth module is connected to the UART pin, so as to implement the extended function of the bluetooth speaker.
As another extension form of the present disclosure, a USB pin in the OPS external device is adopted as the transmission of audio data. In this way, the definition of the OPS interface needs to be modified, because the USB pin generally includes master and Slave devices, i.e., HOST and Slave, in practical application, the corresponding OPS interface of the all-in-one device needs to be defined as the master device HOST, and the USB of the OPS external device needs to be defined as the Slave.
The embodiment of the disclosure provides that the OPS interface is utilized to realize the transmission of audio data through the ARC function in the HDMI protocol on the basis of not changing the existing all-in-one machine equipment, and finally the loudspeaker is driven through the audio decoding module and the power amplifier module, thereby realizing the loudspeaker of the OPS interface.
The OPS external device can only improve the power of the loudspeaker, can also expand the bass frequency range, and can also be used together with the built-in loudspeaker of the all-in-one machine device.
Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the disclosure with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, the subject matter of the present disclosure may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the disclosure should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
While the present disclosure has been described in detail with reference to the embodiments, the present disclosure is not limited to the specific embodiments, and those skilled in the art can make various modifications and alterations based on the concept of the present disclosure, and the modifications and alterations should fall within the scope of the present disclosure as claimed.
Claims (10)
1. A loudspeaker extension method of all-in-one machine equipment is characterized by comprising the following steps:
detecting whether an external device inserted into an OPS interface has a loudspeaker, wherein the OPS interface at least comprises one of the following components: HDMI pin, USB pin, UART pin;
under the condition that the external equipment is provided with a loudspeaker, modifying the configuration information of the OPS interface so that the OPS interface supports the audio data return of the all-in-one machine equipment;
and sending the audio data to be played to the external equipment through the OPS interface.
2. The speaker extension method according to claim 1, wherein, in a case where the OPS interface includes an HDMI pin, before the detecting whether an external device into which the OPS interface is inserted has a speaker, the method further comprises:
and an undefined signal line is configured in the HDMI pin as a sound return signal line.
3. The method for expanding the loudspeaker according to claim 2, wherein the detecting whether the external device inserted into the OPS interface has the loudspeaker comprises:
acquiring device channel information of the external device through a CEC signal line of the HDMI pin;
and determining whether the external equipment has a loudspeaker according to the equipment sound channel information.
4. The loudspeaker expansion method according to claim 3, wherein the sending audio data to be played to the external device through the OPS interface comprises:
and sending audio data to be played to the external equipment through the sound return signal line of the HDMI pin.
5. The speaker extension method of claim 1, wherein, in the case that the OPS interface includes the USB pin, the modifying the configuration information of the selected audio data transmission interface includes:
and modifying the configuration information of the USB pin of the all-in-one machine equipment from slave equipment to master equipment, and informing the external equipment to modify the configuration information of the USB pin on the external equipment from the master equipment to the slave equipment.
6. A speaker extension device of an all-in-one machine device, comprising:
the detection module is used for detecting whether an external device inserted by the OPS interface has a loudspeaker, wherein the OPS interface at least comprises one of the following components: HDMI pin, USB pin, UART pin;
the modification module is used for modifying the configuration information of the OPS interface under the condition that the external equipment is provided with a loudspeaker, so that the OPS interface supports the audio data return of the all-in-one machine equipment;
and the sending module is used for sending the audio data to be played to the external equipment through the OPS interface.
7. The speaker extension device of claim 6, further comprising:
the device comprises a configuration module and a control module, wherein the configuration module is used for configuring an undefined signal line as a sound return signal line in an HDMI pin under the condition that the OPS interface comprises the HDMI pin.
8. The speaker extension apparatus of claim 7, wherein the detection module is specifically configured to:
acquiring device channel information of the external device through a CEC signal line of the HDMI pin;
and determining whether the external equipment has a loudspeaker according to the equipment sound channel information.
9. An all-in-one machine device, comprising: the speaker extension device of the all-in-one machine apparatus of any one of claims 6 to 8.
10. A speaker extension system, comprising:
the all-in-one device and the external device of claim 9;
the external device at least comprises: an OPS interface, a controller and a loudspeaker; wherein the content of the first and second substances,
the controller is configured to modify configuration information of the OPS interface so that the OPS interface supports audio data return of the all-in-one machine device;
the OPS interface is configured to receive audio data to be played from the all-in-one device, and the OPS interface at least includes one of the following: HDMI pin, USB pin, UART pin;
the speaker is configured to play the audio data.
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| CN113885826B (en) | 2023-12-19 |
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