KR101653599B1 - Smart media connector - Google Patents

Smart media connector Download PDF

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Publication number
KR101653599B1
KR101653599B1 KR1020160017511A KR20160017511A KR101653599B1 KR 101653599 B1 KR101653599 B1 KR 101653599B1 KR 1020160017511 A KR1020160017511 A KR 1020160017511A KR 20160017511 A KR20160017511 A KR 20160017511A KR 101653599 B1 KR101653599 B1 KR 101653599B1
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KR
South Korea
Prior art keywords
digital
output terminal
signal
terminal
analog
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KR1020160017511A
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Korean (ko)
Inventor
정성주
박호균
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(주) 씨앤넷
신한대학교 산학협력단
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Priority to KR1020160017511A priority Critical patent/KR101653599B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
    • H01R27/02—Coupling parts adapted for co-operation with two or more dissimilar counterparts for simultaneous co-operation with two or more dissimilar counterparts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/04—Connectors or connections adapted for particular applications for network, e.g. LAN connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/06—Connectors or connections adapted for particular applications for computer periphery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/24—Connectors or connections adapted for particular applications for radio transmission

Abstract

According to an embodiment of the present invention, a smart media connector includes: a short-range wireless communication unit which executes a short-range wireless communication operation with a communication terminal to receive sound and image data; a codec unit which converts the sound data to analog sound signals and converts the image data to analog image signals; a signal processing unit which converts the analog sound signals to digital sound signals and converts the analog image signals to digital image signals; an analog sound output terminal outputting the analog sound signals; a digital sound output terminal which outputs the digital sound signals; a high definition multimedia interface (HDMI) output terminal which outputs the digital sound signals and the digital image signals in accordance with an HDMI; a universal serial bus (USB) terminal which outputs the digital sound signals and the digital image signals through a USB; and a control unit which converts the sound and image data received from the communication terminal and executes a control operation to output the data through the analog sound output terminal, digital sound output terminal, HDMI output terminal, and USB terminal, respectively.

Description

Smart media connector {Smart media connector}

The present invention relates to a media connector, and more particularly, to a media connector for providing audio / video to a media device.

The rapid development of information and communications in recent decades has changed the culture of society as a whole and has made a great difference in our everyday lives. In recent years, the information and communication sector has made rapid progress, which has greatly changed our lives into information-oriented lifestyles, such as the development of high-speed communication networks based on telephone lines and the convenient use of wireless communication at home.

In particular, the development and dissemination of smartphones have transformed our lives into everyday information lifestyles, and as a result we have changed most of our everyday lives into smartphone-based lifestyle. Smart phones are used as information terminals in the center of all information life such as retrieving information through smart phone and using various media such as TV, movie and music, so that information necessary for activities such as home, company, and school is based on smart phone . As a result, the importance of smart phones has been increasing more and more and there are related peripherals that can improve various methods and utilization that can be utilized in work and education of smart phones in companies and schools. .

This reality promotes the development of various applications and related hardware that can enhance the usability of smartphones in the home, so various products ranging from audio devices supporting smart phones to health care devices are being launched, giving various and convenient to our lives. have.

Peripherals for smartphone use in everyday household life are being developed to overcome limitations such as size of screen of smartphone and volume of audio, and they are being developed in the form of smart TV, smart audio, Products that enable devices to communicate with their own smartphones have been actively launched in the market recently, and household appliances suitable for the IoT era are emerging.

However, since smart home appliances have begun to spread recently and prices are now high, it is not possible to rapidly replace existing home appliances. Therefore, there is a sudden surge in the peripheral market that enables existing TV or audio to be used in communication with smartphones Are growing and related products are emerging one after another.

Conversion connectors that connect to Bluetooth and WiFi transmitters and smartphone connectors using smartphone communications are actively being developed and released.

However, since the products that are currently being developed and marketed mainly include products that provide only one function such as a Bluetooth transmitter, a WiFi transmitter, and a connecting cable, it is inconvenient to install a transmitter in each of devices used for TV and audio, Products are AV-only devices, which are expensive and difficult to access by general users.

Most existing products are separated into smartphone-connected products for TV or audio connection, and communication methods are also 1: 1 for smartphones, and their role as smartphone peripherals is limited. This developed product supports multi-link in Bluetooth communication as well as WiFi according to IoT era environment. It is a advanced wired / wireless media connector that utilizes smith's video and music faithfully to existing TV and audio It is a technology part related to a product that can easily and cheaply build a digital media environment centered on a smartphone by allowing it to be played back.

As a result, related markets for the use of smartphones and existing TV and audio connections are growing. Now, connecting connectors and Bluetooth and WiFi communication can provide more convenient and diverse connections for use of existing TV and audio devices and smartphones. There is a need to develop more affordable entry-level media connector products that offer this integration. In other words, it is possible to easily connect the media part, TV and audio, with the smart phone and wireless communication among living environments centered on the changed smart phone. In addition, it is possible to use more advanced smart media Development of the connector 100 is required. Accordingly, a more advanced smart media connector (100), which is capable of easily and inexpensively building a digital media AV environment based on a smart phone capable of faithfully transferring and reproducing video and music from a smartphone to an existing TV and audio, Product development is required.

Korean Patent Publication No. 10-1996-0039503

SUMMARY OF THE INVENTION It is an object of the present invention to provide a smart media connector for easily connecting and using a TV, which is a media part, with audio using a wireless communication function of a communication terminal in a living environment centered on a communication terminal.

According to another aspect of the present invention, there is provided a mobile communication terminal comprising: a short range wireless communication unit for performing short range wireless communication with a communication terminal to receive voice data and video data; A codec for converting the audio data into an analog audio signal and converting the video data into an analog video signal; A signal processor for converting the analog audio signal into a digital audio signal and converting the analog video signal into a digital video signal; An analog audio output terminal for outputting the analog audio signal; A digital audio output terminal for outputting the digital audio signal; An HDMI output terminal for outputting the digital audio signal and the digital video signal according to an HDMI interface; A USB terminal for outputting the digital voice signal and the digital video signal on a universal serial bus; And a controller for converting audio data and video data received from the communication terminal and outputting the audio data and the video data through the analog audio output terminal, the digital audio output terminal, the HDMI output terminal, and the USB terminal, respectively.

The smart media connector may include an amplifier for amplifying analog audio signals and analog video signals output through the codec unit and providing the analog audio signals to the signal processing unit.

The smart media connector may include a memory for first-in-first-out (FIFO) buffering audio data and video data received through the short-range wireless communication unit and providing the audio data and the video data to the codec unit.

The short-range wireless communication unit may support at least one of short-range wireless communication among Wi-Fi communication and Bluetooth communication.

The smart media connector may include a memory card slot into which a memory card can be inserted.

The memory card may have a database in which output terminals are allocated and stored for each identification ID of the communication terminal.

Wherein the short range wireless communication unit receives an identification ID from a communication terminal that wirelessly transmits voice data and video data and the control unit recognizes an output terminal assigned to the identification ID received from the communication terminal, It is possible to output the received voice data and the video data through the output terminal which grasps the received voice data and the video data.

According to the embodiments of the present invention, by providing the video / audio to the media device through the smart media connector using the wireless communication function of the communication terminal, it is possible to provide stable image quality and sound quality different from the related related devices.

FIG. 1 illustrates a smart media connector according to an embodiment of the present invention connected to a media device. FIG.
2 is a front view of a smart media connector according to an embodiment of the present invention;
3 is a block diagram of a configuration of a smart media connector according to an embodiment of the present invention;
4 is an exemplary table of a database in which an output terminal is assigned to each communication terminal according to an embodiment of the present invention;
5 is a message packet structure in a short distance wireless communication according to an embodiment of the present invention.
FIG. 6 is a diagram illustrating a state in which audio and video of a tablet PC using steel are output through HDMI according to an embodiment of the present invention. FIG.
FIG. 7 is a diagram illustrating a voice output of a smartphone through a digital voice output terminal SPDIF according to an embodiment of the present invention. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to achieve them, will be apparent from the following detailed description of embodiments thereof taken in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art. And the present invention is only defined by the scope of the claims. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

2 is a front view of a smart media connector according to an exemplary embodiment of the present invention. FIG. 3 is a cross-sectional view of a smart media connector according to an embodiment of the present invention. FIG. 2 is a block diagram of a smart media connector according to FIG.

Since the launch of smartphones, related markets have been growing steadily, and smartphones are becoming more and more advanced as the core devices of personal information devices. In the future, the Internet of the future will also control the home appliances and various facilities of each family centered on smartphones. In particular, products such as media connectors, which help to ease the interlocking of existing TVs, audio and smart phones, are the basic connectors of the IoT era, A variety of products to solve by using conventional TV and audio have started to come into the development market. However, audio-centric devices are still dominant, and the video segment has not been actively launched. Video products are WiFi-based mirroring products that only display the screen of a smartphone on a TV.

Accordingly, the smart media connector 100 of the present invention is a smart media connector 100 that can connect a media device that supports a music and video of a smart phone easily and conveniently by making the TV and audio most commonly used in everyday life interlocked with a smart phone And it can be used as a device for basic communication support of Internet (Iot) which has been attracting much attention recently.

 The smart media connector 100 of the present invention is a product that allows a user to easily connect a large screen and an audio speaker to a large screen of a conventional TV, It is an integrated product that supports video and audio at the same time as it supports only one part. In addition, by supporting WiFi and Bluetooth communication at the same time, it is possible to utilize the joint communication according to the characteristics of the media device 300, thereby maximizing the utilization, thereby continuously growing the product as a product that is more competitive than the existing products.

The smart media connector 100 of the present invention can receive voice data and / or image data via the communication terminal 200 via short-range wireless communication and transmit the voice data and / And provides the audio data and / or image data to the audio processing unit 300. The communication terminal 200 will be described as an example of a smart phone as an example of a smart phone but it is also possible to use not only a smart phone but also a desktop PC, a tablet PC, a slate PC, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), a Navigation, a Digital Camera, and an MP3 layer player (MP3P). Of course, it is needless to say that the terminal to which the present invention is applicable is not limited to the above-described type, and may include all of the communication terminal 200 capable of transmitting voice data or video data through short-range wireless communication.

2 and 3, the smart media connector 100 includes a short range wireless communication unit 130, a signal processing unit 140, a codec unit 160, an analog audio output terminal 112, a digital audio output terminal 113, an HDMI output terminal 111, a USB terminal 114, and a control unit 180. And may further include an amplification unit 150, a memory 120, memory card slots 115 and 180, and an output terminal allocation storage unit 170.

The short-range wireless communication unit 130 wirelessly communicates with the communication terminal 200 to receive voice data and video data. The short-range wireless communication unit 130 supports at least one short-range wireless communication among Wi-Fi communication and Bluetooth communication. Particularly, in Bluetooth communication, connection control for stable multi-link implementation can be performed.

For reference, WiFi communication is a wireless LAN technology that combines wireless technology with high fidelity (Hi-Fi) and enables high-performance wireless communication, and is a method of establishing a wireless network. Wi-Fi communication is a standard compatible with 802.11b and is the most widely used wireless Internet standard. 2.4GHz frequency band is used. Therefore, the short-range wireless communication unit 130 can communicate with an access point (AP) terminal, which is a wireless router, or a communication terminal 200 that is capable of direct Wi-Fi communication.

In addition, bluetooth communication refers to a short-range wireless communication technology for transmitting information between a mobile phone such as a smart phone, an earphone, and a notebook, etc., near the mobile phone, and uses a frequency band of 2400 to 2483.5 MHz.

The codec unit 160 converts voice data into an analog voice signal and restores the video data into an analog video signal. And restores audio data and video data received through the short-range wireless communication unit 130 into an analog audio signal and an analog video signal, respectively. For example, in the case of an audio codec, aptX LL, aptX, SBC, and high-speed stream are supported.

The signal processor 140 converts an analog voice signal into a digital voice signal and performs a DSP (Digital Signal Process) to convert the analog video signal into a digital video signal. Digital signal processing (DSP) is a signal for processing a digital signal, which converts analog signal information into a digital signal represented by 0 and 1. Such digital signals can be filtered, amplified, noise canceled, signal generated, signal detected, signal feature detection, etc., and real-time digital processing of analog signals can be performed. Accordingly, the analog voice signal and the analog video signal converted by the codec unit 160 can be converted into a digital voice signal and a digital video signal, respectively.

The output terminal may include an analog audio output terminal 112, a digital audio output terminal 113, an HDMI output terminal 111, and a USB terminal 114, which may be provided with various output terminals.

The analog audio output terminal 112 (audio out) outputs the analog audio signal converted by the codec unit 160. One end of the audio signal cable may be inserted into the analog audio output terminal 112 to provide an analog audio signal to the media device 300 connected to the other end of the audio signal cable.

The digital audio output terminal 113 outputs the digital audio signal converted and generated by the signal processing unit 140. One end of the digital signal cable may be inserted into the digital audio output terminal 113 to provide a digital audio signal to the media device 300 connected to the other end of the digital signal cable. The digital audio output terminal 113 may be implemented by various digital terminals such as SPDIF (sony philips digital interface). SPDIF transmits digital voice signals using dedicated ports and cables. SPDIF can be implemented in a coaxial way using coaxial cable and optical method using fiber optic cable depending on port shape.

The HDMI output terminal 111 is a terminal for outputting a digital audio signal and a digital video signal in accordance with the HDMI interface. An HDMI (High Definition Multimedia Interface) terminal is a digital type terminal for transmitting an image signal and an acoustic signal without compression. The HDMI terminal can transmit video and sound together via a single cable.

The USB terminal 114 outputs a digital audio signal and a digital video signal on a universal serial bus. The USB (Universal Serial Bus) terminal is capable of recognizing a USB device inserted in a Plug and Play manner, and transmits a digital audio signal and a digital video signal to the USB terminal 114 It can be output through a universal serial bus cable.

The control unit 180 converts the audio data and the video data received from the communication terminal 200 and outputs the audio data and the video data via the analog audio output terminal 112, the digital audio output terminal 113, the HDMI terminal, and the USB terminal 114 . That is, an analog audio signal is output through the analog audio output terminal 112, a digital audio signal is output through the digital audio output terminal 113, and a digital audio signal and a digital video signal are transmitted through the HDMI terminal And outputs a digital voice signal and a digital video signal through the USB terminal 114 to the universal serial bus. Accordingly, the user can receive and reproduce voice and video by connecting a cable to an output terminal corresponding to the terminal type of the media device 300 regardless of the terminal type of the media device 300 used by the user.

The amplification unit 150 amplifies the analog audio signal and the analog video signal output through the codec unit 160 and provides the amplified analog audio signal and the analog video signal to the signal processing unit 140. The intensity of the analog voice signal and the analog video signal restored by the codec unit 160 may be weak and the noise sensitivity may be strong during signal processing. Therefore, the intensity of the analog voice signal and the analog video signal restored by the codec unit 160 are amplified and provided to the signal processing unit 140 so that the analog signal amplified by the signal processing unit 140 is converted into a digital signal Respectively.

The memory 120 buffers the audio data and the video data received through the short-range wireless communication unit 130 in a first-in first-out (FIFO) manner and provides them to the codec unit 160. The audio data and the video data received through the short-range wireless communication unit 130 are continuously supplied to the codec unit 160 without being disconnected through the automatic active buffering control for maintaining the optimum buffering state. For reference, a first-in first-out (FIFO) buffering refers to a buffering method in which data to be input and stored first is output as shown in FIG.

The memory card slots 115 and 180 are slots 115 into which a memory card can be inserted. The memory card is a module capable of inputting and outputting information such as a CF card (Compact Flash Card), an SD card (Secure Digital Card), an SM card (Smart Media Card), an MMC card (Multi-Media Card), or a Memory Stick Such a memory card can be inserted into the memory card slots 115 and 180 and used. In this memory card, information on additional options of the smart media connector 100 may be stored.

Meanwhile, the communication terminal 200 for transmitting voice data and image data to the smart media connector 100 of the present invention can be used variously according to its use. For example, a tablet PC for lecture for outputting content of a lecture to a projector connected to an HDMI terminal of the smart media connector 100 may correspond to the communication terminal 200. Or a Bluetooth radio for outputting music through an audio device connected to the analog audio output terminal 112 of the smart media connector 100 may correspond to the communication terminal 200. [

In this manner, the output terminal of the smart media connector 100 can be assigned according to the type of the communication terminal 200. This is also necessary for security. If audio data and video data received from the communication terminal 200 are output through all output terminals, audio and video will be played through all the media devices 300 connected to the output terminals, (300) is reproduced.

In order to solve such a problem, the present invention has a database in which an output terminal is assigned and stored for each identification ID of the communication terminal 200 in a memory card. For reference, an example of a database is shown in Fig. The database stores terminals to be output for respective identification IDs of the communication terminal 200 and stores them. For reference, the memory card can be inserted into a user's smart phone, PC, or the like, and can be updated by updating an output terminal for each identificationaddy through an application installed in advance by the user.

To this end, the short-distance wireless communication unit 130 receives the identification ID from the communication terminal 200 that wirelessly transmits the voice data and the video data. That is, the communication terminal 200 and the short-range wireless communication unit 130 transmit and receive the message packet as shown in FIG. Such a message packet includes a header field, an identification field, and a data field. In the header field, header information for short-range wireless communication is recorded. In the identification field, an identification ID for identifying the communication terminal 200 transmitting the message packet is recorded, and voice data and video data are recorded in the data field. The identification ID recorded in the identification ID field and the identification ID stored in the memory card use the identification ID prearranged in advance.

The controller 180 recognizes the output terminal assigned to the identification ID received from the communication terminal 200 and outputs the voice data and the video data received through the communication terminal 200 through the output terminal. For example, when the communication terminal is a tablet PC as shown in FIG. 6, the identification ID received from the communication terminal 200 will correspond to the identification ID of the strong tablet PC, and therefore, The digital voice data and the digital video data are output only through the HDMI output terminal 111 assigned to the identification ID of the strong tablet PC so that voice and video are reproduced only through the projector.

Similarly, when the communication terminal 200 is a smart phone as shown in Fig. 7, the identification ID of the smartphone will be received, and therefore, the digital voice output terminal The digital voice data will be outputted only through the antenna 113.

The embodiments of the present invention described above are selected and presented in order to facilitate the understanding of those skilled in the art from a variety of possible examples. The technical idea of the present invention is not necessarily limited to or limited to these embodiments Various changes, modifications, and other equivalent embodiments are possible without departing from the spirit of the present invention.

100: Smart media connector 111: HDMI output terminal
112: analog audio output terminal 113: digital audio output terminal
114: USB terminal 115: Memory card slot
120: memory 130: short-range wireless communication unit
140: signal processing unit 150: amplification unit
160: codec unit 170: output terminal assignment storage unit

Claims (7)

A short range wireless communication unit for short distance wireless communication with the communication terminal to receive voice data and video data;
A codec for converting the audio data into an analog audio signal and converting the video data into an analog video signal;
A signal processor for converting the analog audio signal into a digital audio signal and converting the analog video signal into a digital video signal;
An analog audio output terminal for outputting the analog audio signal;
A digital audio output terminal for outputting the digital audio signal;
An HDMI output terminal for outputting the digital audio signal and the digital video signal according to an HDMI interface;
A USB terminal for outputting the digital voice signal and the digital video signal on a universal serial bus; And
And a controller for converting audio data and video data received from the communication terminal and outputting the audio data and the video data through the analog audio output terminal, the digital audio output terminal, the HDMI output terminal, and the USB terminal, respectively,
Wherein the short-range wireless communication unit receives an identification ID from a communication terminal that wirelessly transmits voice data and video data,
Wherein the control section grasps an output terminal assigned to the identification ID received from the communication terminal and outputs the voice data received from the communication terminal and the output terminal through which the video data is obtained.
The smart media connector of claim 1,
And an amplifying unit amplifying the analog audio signal and the analog video signal outputted through the codec unit and providing the same to the signal processing unit.
The smart media connector of claim 1,
And a memory for buffering the audio data and the video data received through the short-range wireless communication unit in a first-in first-out (FIFO) manner and providing the audio data and the video data to the codec unit.
2. The wireless communication system according to claim 1,
Wi-Fi communication, Bluetooth communication, and the like.
The smart media connector of claim 1,
And a memory card slot into which a memory card can be inserted.
The memory card according to claim 5,
And a database in which an output terminal is allocated and stored for each identification ID of the communication terminal.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112653856A (en) * 2020-12-14 2021-04-13 中国华录集团有限公司 Method for controlling volume equipment by intelligently switching audio output equipment of laser projection television

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0390747A (en) * 1989-09-01 1991-04-16 Toto Ltd Flushing water feeder and flush toilet
KR960039503A (en) 1995-04-17 1996-11-25 김광호 Integrated connector in a multimedia system
KR100730003B1 (en) * 2006-10-30 2007-06-20 주식회사 큐빅웨이브 Apparatus and method for transmitting video and audio signal using communication module
KR20130001829U (en) * 2011-09-08 2013-03-18 김국현 Converting apparatus of video and audio signal
KR20140110279A (en) * 2013-03-07 2014-09-17 문재훈 Distribution apparatus for analog/digital media signal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0390747A (en) * 1989-09-01 1991-04-16 Toto Ltd Flushing water feeder and flush toilet
KR960039503A (en) 1995-04-17 1996-11-25 김광호 Integrated connector in a multimedia system
KR100730003B1 (en) * 2006-10-30 2007-06-20 주식회사 큐빅웨이브 Apparatus and method for transmitting video and audio signal using communication module
KR20130001829U (en) * 2011-09-08 2013-03-18 김국현 Converting apparatus of video and audio signal
KR20140110279A (en) * 2013-03-07 2014-09-17 문재훈 Distribution apparatus for analog/digital media signal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112653856A (en) * 2020-12-14 2021-04-13 中国华录集团有限公司 Method for controlling volume equipment by intelligently switching audio output equipment of laser projection television
CN112653856B (en) * 2020-12-14 2024-02-27 中国华录集团有限公司 Method for intelligently switching audio output equipment of laser projection television

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