KR101292782B1 - Transmission apparatus for compositing signal included of hdmi signal and usb signal and method therefor - Google Patents

Abstract

The present invention relates to a complex signal transmission apparatus and method including an HDMI signal and a USB signal, four HDMI signals including a red signal, a green signal, a blue signal and a clock signal, and an HPD signal for controlling a display device. Optical transmission / reception module via 'Link_TX0' and 'Link_TX1', 'transmission side transmission signal' consisting of 4 control signals including SCL signal, SDA signal and CEC signal, and USB 1.1 signal consisting of USB + signal and USB-signal A first SERDES circuit unit 110 to be applied to; A first optical transmission / reception module 120 receiving the 'transmission side transmission signal' received from the first SERDES circuit unit and applying it to the first TRI-OSA module through the Link_TX0 line and the Link_TX1 line; A first TRI-OSA module 130 for transmitting the 'transmission side transmission signal' received from the first optical transmission module to the second TRI-OSA module through an optical cable; The second TRI-OSA which restores the 'transmission side transmission signal' received from the first TRI-OSA module through the optical cable to the HDMI signal, the control signal and the USB signal and applies it to the second optical transmission / reception module through the Link_RX0 line and the Link_RX1 line. Module 140; A second optical transmission / reception module 150 for applying the HDMI signal, the control signal, and the USB signal received from the second TRI-OSA module to the second SERDES circuit unit through the Link_RX0 line and the Link_RX1 line; And a second SERDES circuit unit 160 for outputting a 'transmission side transmission signal' including an HDMI signal, a control signal, and a USB signal received from the second optical transmission / reception module.

Description

TECHNICAL FIELD OF THE INVENTION A hybrid signal transmission apparatus including a HMD signal and a USB signal and a method thereof are provided.

The present invention relates to a complex signal transmission apparatus and method including an HDMI signal and a USB signal, and more particularly, to an HDMI A / V signal, an accessory signal (CEC, EDID, HPD) and a USB 1.1 signal through an optical module. The present invention relates to a technology for transmitting with one optical cable.

In order to enjoy multimedia content such as movies and games, there are three essential elements. The first is a video / audio output device such as a TV, a monitor or a speaker, the second is a playback device such as a DVD player, a PC or a video game machine. The third is a video / audio signal transmission between the player and an output device. Interface that represents the cable and terminal for the interface.

No matter how good the output device or playback device is, if the interface quality is not good, the picture quality or sound quality may be degraded during signal transmission. Especially in the case of the video interface, the analog interface that is out of date, such as Composite or S-Video, cannot deliver high-definition multimedia signals properly.

In addition, in the case of components, it is inconvenient that three cables are required to transmit only a video signal, and D-Sub is originally developed for a PC, which is often not supported by a general AV device. The problems specific to analog interfaces, whose quality varies due to noise (noise) from other devices or external factors such as cable length and thickness, have not been improved.

This was the digital interface. Early digital interfaces include DVI (Digital Visual Interface) for video and S / PDIF (Sony Philips Digital InterFace) for audio.

However, the DVI interface was developed by PC makers and was not suitable for general purpose AV equipment. In addition, the S / PDIF interface was recognized as the exclusive property of AV professionals who mainly use expensive audio equipment, and popularization progressed more slowly than expected. As a result, even after DVI and S / PDIF, people have used analog interfaces for some time.

In particular, by 2000, there weren't many choices besides a three-component component interface to connect DVD movies and video games to HD TVs for a satisfactory picture quality. Here, the audio cables for each channel were plugged in, and various cables were intertwined, leading to confusion. That's why the high-definition multimedia interface (HDMI) interface emerged.

HDMI transmits digital video and audio signals simultaneously with a single cable.If both playback devices and output devices are equipped with an HDMI port (port), simply connect one HDMI cable to enjoy video and sound simultaneously. have.

In addition, since it is a digital method without any deterioration of quality, the picture quality and sound quality are also excellent, and full HD video and 7.1 channel sound can be transmitted through a single cable. The HDMI is being applied to various devices such as a PC, a DVD player, a Blu-ray player, a digital TV, a video game machine, and a multimedia player (Divx player).

Looking at the Republic of Korea Patent Publication No. 10-0772416 (HDMI-based data transmission and reception device), the transmission unit for transmitting data, the receiving unit for receiving the data, when operating as a source device to activate the transmission unit, operating as a sink device And a control unit for controlling the transmission / reception switch unit based on a control signal and a transmission / reception switch unit for activating the reception unit, thereby enabling the transmission and reception of data between both devices using only one HDMI cable between the source device and the sink device. Thus, techniques for reducing the cost of system configuration and reducing power consumption during operation are disclosed.

However, the above-mentioned prior document is a structure for transmitting only the HDMI signal between both the transmitter and the receiver through the HDMI cable, a structural problem that must be connected to the transmitter and the receiver via a separate USB cable in order to transmit the USB signal between the transmitter and the receiver. There is this.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and converts an HDMI signal, an accessory control signal (CEC, EDID, HPD) and a USB signal inputted by a transmitting SERDES circuit into a composite signal, and transmits it to the receiving side. The SERDES circuit restores the composite signal to the HDMI signal, the accessory control signal and the USB signal, thereby transmitting the HDMI signal, the accessory control signal and the USB signal through a single optical cable.

The composite signal transmission apparatus including the HDMI signal and the USB signal of the present invention for achieving the technical problem, four HDMI signals including a red signal, a green signal, a blue signal and a clock signal, and for the control of the display device The 'transmission side transmission signal' consisting of four control signals including the HPD signal, the SCL signal, the SDA signal, and the CEC signal, and the USB 1.1 signal consisting of the USB + signal and the USB-signal is connected via the Link_TX0 and Link_TX1 lines. A first SERDES circuit unit 110 applied to a transmission / reception module; A first optical transmission / reception module 120 receiving the 'transmission side transmission signal' received from the first SERDES circuit unit and applying it to the first TRI-OSA module through the Link_TX0 line and the Link_TX1 line; A first TRI-OSA module 130 for transmitting the 'transmission side transmission signal' received from the first optical transmission module to the second TRI-OSA module through an optical cable; The second TRI-OSA which restores the 'transmission side transmission signal' received from the first TRI-OSA module through the optical cable to the HDMI signal, the control signal and the USB signal and applies it to the second optical transmission / reception module through the Link_RX0 line and the Link_RX1 line. Module 140; A second optical transmission / reception module 150 for applying the HDMI signal, the control signal, and the USB signal received from the second TRI-OSA module to the second SERDES circuit unit through the Link_RX0 line and the Link_RX1 line; And a second SERDES circuit unit 160 for outputting a 'transmission side transmission signal' including an HDMI signal, a control signal, and a USB signal received from the second optical transmission / reception module.

In the composite signal transmission method including the HDMI signal and the USB signal according to the present invention using the above-described device, the HDMI signal, the control signal, and the USB signal input by the first SERDES circuit unit 110 are connected to the Link_TX0 line and the Link_TX1 line. (A) applying to the first optical transmission / reception module through; The first optical transmission / reception module 120 receives the 'transmission side transmission signal' including the HDMI signal, the control signal and the USB signal through the Link_TX0 line and the Link_TX1 line of the first SERDES circuit and receives the first through the Link_TX0 line and the Link_TX1 line. (B) applying to the TRI-OSA module; (C) the first TRI-OSA module 130 transmitting the 'transmission side transmission signal' received from the Link_TX0 line and the Link_TX1 line of the first optical transmission / reception module to the second TRI-OSA module through an optical cable; The second TRI-OSA module 140 restores the 'transmission side transmission signal' received from the first TRI-OSA module through the optical cable to the HDMI signal, the control signal, and the USB signal, and then the second optical signal through the Link_RX0 and Link_RX1 lines. (D) applying to a transmission / reception module; (E) the second optical transmitting / receiving module 150 applying the HDMI signal, the control signal, and the USB signal received through the Link_RX0 line and the Link_RX1 line to the second SERDES circuit through the Link_RX0 line and the Link_RX1 line; And (f) outputting, by the second SERDES circuit unit 160, a 'transmission side transmission signal' including an HDMI signal, a control signal, and a USB signal received through the Link_RX0 line and the Link_RX1 line of the second optical transmission / reception module. Include.

According to the present invention as described above, the transmitting side SERDES circuit converts the input HDMI signal, the accessory control signal (CEC, EDID, HPD) and USB signal into a composite signal and transmits it to the receiving side, and the receiving side SERDES circuit transmits the composite signal. By restoring to the HDMI signal, the accessory control signal and the USB signal, there is an effect of transmitting the HDMI signal, the accessory control signal and the USB signal through a single optical cable.

1 is a configuration diagram showing a conventional dust collector for painting.
Figure 2 is a block diagram showing a composite signal transmission device including an HDMI signal and a USB signal according to the present invention.
Figure 3 is a block diagram showing a composite signal transmission device including an HDMI signal and a USB signal according to the present invention.
4 is a diagram showing the required bandwidth of each data line and clock line for each video mode of the composite signal transmission apparatus including the HDMI signal and the USB signal according to the present invention.
FIG. 5 is a block diagram illustrating an interface to a first SERDES circuit unit of a composite signal transmission apparatus including an HDMI signal and a USB signal according to the present invention. FIG.
6 is a diagram illustrating a Link_TX0 line and a Link_TX1 line of a composite signal transmission apparatus including an HDMI signal and a USB signal according to the present invention.
FIG. 7 is a diagram illustrating an internal structure of a first SERDES circuit unit of a composite signal transmission apparatus including an HDMI signal and a USB signal according to the present invention. FIG.
8 is a block diagram showing an interface to a second SERDES circuit of the composite signal transmission apparatus including the HDMI signal and the USB signal according to the present invention.
FIG. 9 is a diagram illustrating an internal structure of a second SERDES circuit unit of a composite signal transmission apparatus including an HDMI signal and a USB signal according to the present invention. FIG.
FIG. 10 is a view illustrating a Link_RX line of a composite signal transmission apparatus including an HDMI signal and a USB signal according to the present invention. FIG.
11 is a flowchart illustrating a composite signal transmission method including an HDMI signal and a USB signal according to the present invention.
12 is a flowchart illustrating a process after step S60 of a method for transmitting a complex signal including an HDMI signal and a USB signal according to the present invention;

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms and words used in the present specification and claims are to be interpreted in accordance with the technical idea of the present invention based on the principle that the inventor can properly define the concept of the term in order to explain his invention in the best way. It should be interpreted in terms of meaning and concept. It is to be noted that the detailed description of known functions and constructions related to the present invention is omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

As shown in FIG. 2, the composite signal transmission apparatus 100 including the HDMI signal and the USB signal according to the present invention includes a first SERDES (Serializer / Deserializer) circuit unit 110, a first optical transmission / reception module 120, And a first TRI-OSA (Triplex Optical Sub-Assembly) module 130, a second TRI-OSA module 140, a second optical transmission / reception module 150, and a second SERDES circuit unit 160.

Specifically, referring to FIG. 3, the components of the composite signal transmission apparatus 100 including the HDMI signal and the USB signal according to the present invention will be described below.

First, the first SERDES circuit unit 110 includes four HDMI signals including a red signal, a green signal, a blue signal, and a clock signal, and an HPD signal, an SCL signal, an SDA signal, and a CEC signal for controlling a display device. It receives four control signals and a USB 1.1 signal consisting of a USB + signal and a USB-signal, and transmits a 'transmission side transmission signal' including the received HDMI signal, control signal and USB signal to the Link_TX0 line 111 and the Link_TX1 line ( Through 112, it is applied to the first optical transmission module 120.

Hereinafter, as shown in FIG. 4, the required bandwidth of each data line and clock line for each video mode of the first SERDES circuit unit 110 is as follows.

First, if the maximum target resolution of HDMI is set to 1080p, the maximum bandwidth required to transmit it is 1.485x3 = 4.455 Gbps. In addition, since the additional information required for transmission needs to be transmitted, the required bandwidth is somewhat increased.

In addition, the first SERDES circuit unit 110 is essentially required for HDMI input / output or transmission, and the specification of the first SERDES circuit unit 110 requires at least one SERDES Quad to combine the basic video signals. Here, quad means four inputs and four outputs.

And 40bit (37bit) is required to transmit Full HD video signal, control signal and USB signal, and transmission speed needs 5.94Gbps (R: 10bit, G: 10bit, B: 10bit, Control signal: 3bit, USB signal: 2bit, clk recovery: 1bit, resolution control: 1bit).

Since general SERDES circuit is composed of 10bit or 20bit, TX is sent through 2line to send 40bit, and it is composed of 160Mhz clock and 3.2Gbps for easy timing and bit check of circuit. TX 1 line, 320 Mhz clock and 6.4 Gbps are required.)

That is, as shown in FIG. 5, the first SERDES circuit unit 110 includes three HDMI video signals (up to 1.485 x 3Gbps (R, G, B)), and USB +, USB-, CEC, SCL, and SDA signals. (Except because the HPD signal is an input signal).

In addition, three SERDES inputs are used for HDMI input, one SERDES input is used by combining inputs of other signals, and two SERDES outputs (Link_TX0 line 111 and Link_TX1 line 112) for signal transmission. It is connected to the first optical transmission / reception module 120, and each of the Link_TX0 line 111 and the Link_TX1 line 112 supports 3.2 Gbps. At this time, the HDMI_CLK signal, which is a signal input by the first SERDES circuit unit 110, is not output.

In addition, referring to FIG. 6, the link_TX0 line 111 and the Link_TX1 line 112 of the composite signal transmission apparatus 100 including the HDMI signal and the USB signal according to the present invention will be described below.

The HDMI signal transmits 10 bits of data per clock, and has a total size of 30 bits as the R, G, and B signals each have a size of 10 bits. To deal with this, two serializers (Link_TX0 line 111 and Link_TX1 line 112) are used in parallel, and 20 bits of data are transmitted per clock.

In addition, it is necessary to periodically transmit a comma code (“1101010100”) for the link interface, and the present invention is configured to transmit one comma code every 256 clocks. By inverting the data by dividing the odd phase, signal generation with successive '1' or '0' values is limited.

In addition, referring to FIG. 7, the internal structure of the first SERDES circuit unit 110 of the composite signal transmission apparatus 100 including the HDMI signal and the USB signal according to the present invention will be described below.

As mentioned earlier, the input of the HDMI signal is variable depending on the resolution, and 10 bits per clock are input at a clock of up to 148.5 MHz. The link rate is 3.2Gbps and when transmitting 20 bits per clock, it has a clock rate of 160 MHz.

Even if one clock for 256 clocks is used for comma code transmission, 159.375MHz is used to transmit HDMI data. The FIFO is used to compensate for the difference between the input and output, and the output bit rate is higher, thus defining the idle state.

For this purpose, 15 bits of 20 bits are allocated to HDMI data and 1 bit is used for idle state transmission. In addition, the clock is divided by 100 to the HDMI input clock so as to accurately restore the HDMI clock transmitted from the receiving side (second SERDES circuit unit 110). To do this, use another 1 bit (clock recovery).

In addition, the first optical transmission / reception module 120 transmits a 'transmission side transmission signal' including an HDMI signal, a control signal, and a USB signal through the Link_TX0 line 111 and the Link_TX1 line 112 of the first SERDES circuit unit 110. It is applied to the first TRI-OSA module 130 through the Link_TX0 line 121 and Link_TX1 line 122, and receives the 'receive side transmission signal' received from the first TRI-OSA module 130 Link_RX line ( 123 is applied to the first SERDES circuit unit 110.

At this time, the Link_TX0 line 121 of the first optical transmission module 120 is output at a wavelength of 1490nm, the Link_TX1 line 122 is output at a wavelength of 1550nm, and the LINK_RX line 123 is configured to be input at a wavelength of 1310nm. The invention is not limited to this.

In addition, the first TRI-OSA module 130 transmits the 'transmission side transmission signal' applied from the Link_TX0 line 121 and the Link_TX1 line 122 of the first optical transmission / reception module 120 through the optical cable 10. A first optical transmission / reception module (transmitted to a TRI-OSA module 140 and connected to a 'reception side transmission signal' received from the second TRI-OSA module 140 through an optical cable 10 to the Link_RX line 131 ( 120).

At this time, the optical cable 10 is connected to the first TRI-OSA module 130 and the second TRI-OSA module 140, it is composed of a single 'transmission side transmission including the HDMI signal, control signal and USB signal Signal 'or' receive side transmit signal '.

Meanwhile, the second TRI-OSA module 140 restores the 'transmission side transmission signal' received from the first TRI-OSA module 130 through the optical cable 10 to the HDMI signal, the control signal, and the USB signal to link_RX0 line. 141 and the 'reception side transmission signal' applied from the Link_RX line 151 connected to the second optical transmission module 150 through the Link_RX1 line 142 and the second optical transmission module 150, the optical cable It transmits to the first TRI-OSA module 130 through (10).

In this case, the restoration of the 'transmission side transmission signal' may include the 'transmission side transmission signal' composed of the HDMI signal, the control signal, and the USB signal received through the optical cable 10, that is, the HDMI signal as the original signal. It is preferable to restore the control signal and the USB signal (HDMI_CH0, HDMI_CH1, HDMI_CH2, HDMI_CLK, SCL, SDA, CEC, USB + and USB-signal) to output to the Link_RX0 line 141 and the Link_RX1 line 142.

In addition, the second optical transmission / reception module 150 transmits an HDMI signal, a control signal, and a USB signal received through the Link_RX0 line 141 and the Link_RX1 line 142 through the Link_RX0 line 152 and the Link_RX1 line 153. The SERDES circuit unit 160 is applied to the second TRI-OSA module 140 connected to the Link_RX line 151 to the 'receive side transmission signal' received from the second SERDES circuit unit 160.

In addition, the second SERDES circuit unit 160 includes a 'transmission side transmission signal including an HDMI signal, a control signal, and a USB signal received through the Link_RX0 line 152 and the Link_RX1 line 153 of the second optical transmission / reception module 150. ', And receives the' receive side transmission signal 'including the HDMI signal, the control signal and the USB signal to the second optical transmission module 150 connected to the Link_TX line 161.

Specifically, referring to FIG. 8, the internal structure of the second SERDES circuit unit 160 of the complex signal transmitter 100 including the HDMI signal and the USB signal according to the present invention will be described below.

The second SERDES circuit unit 160 confirms the specified Comma Code and supports word alignment, initializes the serdes by checking the state of the phase and the existence of the comma code, does not allow the inversion of the Comma code, and inverts the data code. It performs the function to support each phase.

First, the second SERDES circuit unit 160 detects a comma code periodically in order to maintain a link lock state, but ignores the comma code in a non-comma phase, and maintains an initial state of the LSM in an idle state. In the state, it initializes LSM.

After that, it detects the appearance of comma code regardless of the phase in the hunt state. If the comma code does not appear for a certain time, the state is changed to the idle state and the serdes input is initialized.

On the other hand, when the appearance of the Comma code is confirmed, enters the quasi sync state, in this state recognizes the comma code only in the comma state. If comma code is detected in the Comma phase, the device enters the sync state, changes the link state to sync_state, and fails to detect the comma code more than once in the comma phase. Initialize

In addition, when the LSM becomes the sync_state, the input data is input to the FIFO. If the LINK_IDLE bit is '1', the input is ignored.

9, the internal structure of the second SERDES circuit unit 160 of the composite signal transmission apparatus 100 including the HDMI signal and the USB signal according to the present invention will be described below.

Convert HDMI_CLK_100 output from LSM to 100 times clock using PLL, and converted clock is used as output clock of FIFO.In case FIFO is Empty or Full, initialize FIFO and output FIFO until it is half full Is prohibited.

In addition, referring to FIG. 10, the link_RX line 161 of the composite signal transmission apparatus 100 including the HDMI signal and the USB signal according to the present invention will be described below.

The LINK_RX line 161 transmits a complex signal including HPD, CEC, SDA, USB + and USB-, of which the fastest signal is USB and the speed supports 12Mbps (USB 1.1).

In addition, 1 Frame is composed of 6 chips, 1 chip is composed of 4 bits, 1 frame (24 bits) is 12Mhz, 1 chip is 72Mhz, 1 bit is 288Mhz and 1 bit is 288Mhz. Scrambled (inverted) by nature.

Here, 'S' is a sync bit and checks these bits when S1 to S6 are defined as "110010".

In addition, 'A' is a USB + signal and is configured to reduce error by checking 6 times per 1 frame (12Mhz), and '/ A' is an inverted signal of A.

In addition, 'B' is a USB-signal and configured to reduce error by checking 6 times per 1 frame (12Mhz), and '/ B' is an inverted signal of B.

And, 'C1' is the "HPD" signal, '/ C1' is the inverted signal of C1, 'C2' is the "SDA" signal, '/ C2' is the inverted signal of C2, 'C3'"CEC" Signal, '/ C3' is the inverted signal of C3.

Hereinafter, the data configuration of the transmission and restoration of the HDMI signal and the USB signal for the composite signal transmission apparatus including the HDMI signal and the USB signal according to the present invention will be described below.

As mentioned earlier, TX SERDES requires three 10bit SERDES and one internal 10bit SERDES for external input, two 20bit SERDES for output, and two 20bit SERDES and two internal for RX SERDES. One 10bit SERDES and four 10bit SERDES are required for output.

In addition, the TX SERDES requires HDMI signals and 5 USB signals in addition to 32 related signals (red: 10bit, green10bit, blue: 10bit, internal control signal: 2bit) except for the clock.

Here, five USB signals are composed of SCL, SDA, CEC, USB +, and USB-, and these signals are allocated to the remaining signal lines except for 32 of the 40 SERDES signal lines and transmitted at a speed of 160 MHz, respectively. In addition, these signals are bidirectional and are used to receive this signal with one SERDES in addition to the three SERDES already used for reception. The received signals are HPD, SDA, CEC, USB + and USB-.

In RX SERDES, two 20-bit SERDESs are used for reception, and the received signals are restored to 40-bit data lines, 30 of which are HDMI data signals and two are FIFO and clock control signals. Three 10-bit SERDES are required for three data channels and one clock channel for outputting HDMI signals.

In addition, five of the 40-bit signals are SCL, SDA, CEC, USB + and USB-restored. These signal lines are each transmitted at a rate of 160 MHz, and support 288 MHz input and output for bidirectional signal return (LINK_RX).

At this time, the encoding for returning the bidirectional signal is designed to support I / O input rather than SERDES input depending on the situation. The need for this is due to the efficiency of the encoding scheme.

For example, when configured to support 8-bit SERDES, each data line may communicate at a rate of 288 MHz / 8, but considering that the USB is 12 MHz, 36 MHz may not be sufficient. In addition, when composing a frame, a bubble is generated to transmit a comma code because this is not a desirable situation for the USB. Therefore, if you configure the Deserializer directly assuming I / O input, you can efficiently transfer the USB data at equal intervals.

Hereinafter, referring to FIG. 11, a composite signal transmission method including an HDMI signal and a USB signal according to the present invention will be described below.

First, the first optical transmission / reception module 120 transmits a 'transmission side transmission signal' including a HDMI signal, a control signal, and a USB signal input by the first SERDES circuit unit 110 through the Link_TX0 line 111 and the Link_TX1 line 112. Is applied as (S10).

Subsequently, the first optical transmission / reception module 120 transmits a 'transmission side transmission signal' including an HDMI signal, a control signal and a USB signal through the Link_TX0 line 111 and the Link_TX1 line 112 of the first SERDES circuit unit 110. It is applied to the first TRI-OSA module 130 through the Link_TX0 line 121 and Link_TX1 line 122 (S20).

Subsequently, the second TRI-OSA module 130 receives the 'transmission side transmission signal' applied from the Link_TX0 line 121 and the Link_TX1 line 122 of the first optical transmission / reception module 120 through the optical cable 10. It transmits to the TRI-OSA module 140 (S30).

Subsequently, the second TRI-OSA module 140 restores the 'transmission side transmission signal' received from the first TRI-OSA module 130 through the optical cable 10 to the HDMI signal, the control signal, and the USB signal, thereby link_RX0 line. 141 and the link_RX1 line 142 to the second optical transmission module 150 (S40).

Subsequently, the second optical transmission / reception module 150 receives the HDMI signal, the control signal, and the USB signal received through the Link_RX0 line 141 and the Link_RX1 line 142 through the Link_RX0 line 152 and the Link_RX1 line 153. SERDES circuit unit 160 is applied (S50).

In addition, the 'transmission side transmission signal' including the HDMI signal, the control signal, and the USB signal received by the second SERDES circuit unit 160 through the Link_RX0 line 152 and the Link_RX1 line 153 of the second optical transmission / reception module 150. '(S60).

Meanwhile, referring to FIG. 12, the process after step S60 of the composite signal transmission method including the HDMI signal and the USB signal according to the present invention is as follows.

After step S60, the second SERDES circuit unit 160 receives the 'receive side transmission signal' including the DMI signal, the control signal, and the USB signal to the second optical transmission / reception module 150 connected to the Link_TX line 161. It is applied (S70).

Subsequently, the second optical transmission / reception module 150 applies the 'reception side transmission signal' received from the second SERDES circuit unit 160 to the second TRI-OSA module 140 connected to the Link_RX line 151 (S80). ).

Subsequently, the first TRI-OSA module receives the 'receive side transmission signal' received from the Link_RX line 151 connected to the second optical transmission module 150 by the second TRI-OSA module 140 through the optical cable 10. Transmit to 130 (S90).

Subsequently, the first optical transmission / reception module connected to the 'reception side transmission signal' received from the second TRI-OSA module 140 by the first TRI-OSA module 130 through the optical cable 10 to the Link_RX line 131. Applies to 120 (S100).

Subsequently, the first optical transmission / reception module 120 applies the 'reception side transmission signal' received from the first TRI-OSA module 130 to the first SERDES circuit unit 110 through the Link_RX line 123 (S110). .

The first SERDES circuit unit 110 outputs an HDMI signal, a control signal, and a USB signal included in the 'receive side transmission signal' received from the first optical transmission / reception module 120 (S120).

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

100: a composite signal transmission device including an HDMI signal and a USB signal
110: first SERDES circuit section 111: Link_TX0 line
112: Link_TX1 line 120: first optical transmission / reception module
121: Link_TX0 line 122: Link_TX1 line
123: Link_RX line 130: first TRI-OSA module
131: Link_RX line 140: second TRI-OSA module
141: Link_RX0 line 142: Link_RX1 line
150: second optical transceiver module 151: Link_RX line
152: Link_RX0 line 153: Link_RX1 line
160: second SERDES circuit unit 161: Link_TX line
10: Optical cable

Claims (8)

In the composite signal transmission device comprising an HDMI signal and a USB signal,
Four HDMI signals including red signal, green signal, blue signal and clock signal, four control signals including HPD signal, SCL signal, SDA signal and CEC signal for control of display device, USB + signal and USB A first SERDES circuit unit 110 for applying a 'transmission side transmission signal' composed of a USB 1.1 signal consisting of a signal to the first optical transmission / reception module 120 through the Link_TX0 line 111 and the Link_TX1 line 112;
A first optical transmission / reception module receiving the 'transmission side transmission signal' received from the first SERDES circuit unit 110 and applying it to the first TRI-OSA module 130 through the Link_TX0 line 121 and the Link_TX1 line 122. 120;
A first TRI-OSA module 130 for transmitting the 'transmission side transmission signal' received from the first optical transmission module 120 to the second TRI-OSA module 140 through the optical cable 10;
The 'transmission side transmission signal' received from the first TRI-OSA module 130 through the optical cable 10 is restored to the HDMI signal, the control signal and the USB signal through the Link_RX0 line 141 and the Link_RX1 line 142. A second TRI-OSA module 140 applied to the second optical transmission module 150;
The second optical transmission / reception module for applying the HDMI signal, the control signal, and the USB signal received from the second TRI-OSA module 140 to the second SERDES circuit unit 160 through the Link_RX0 line 152 and the Link_RX1 line 153. 150; And
And a second SERDES circuit unit 160 for outputting a 'transmission side transmission signal' including an HDMI signal, a control signal, and a USB signal received from the second optical transmission / reception module 150. Composite signal transmission device including a USB signal. The method of claim 1,
A second SERDES circuit unit 160 which receives the 'receive side transmission signal' including the HDMI signal, the control signal and the USB signal and applies it to the second optical transmission / reception module 150 connected to the Link_TX line 161;
A second optical transmission / reception module 150 for applying a 'receive side transmission signal' received from the second SERDES circuit unit 160 to the second TRI-OSA module 140 connected to the Link_RX line 151;
A second TRI- for transmitting the 'receive side transmission signal' received from the Link_RX line 151 connected to the second optical transmission module 150 to the first TRI-OSA module 130 through the optical cable 10. OSA module 140;
The first TRI-OSA applying the 'receive side transmission signal' received from the second TRI-OSA module 140 through the optical cable 10 to the first optical transmission module 120 connected to the Link_RX line 131. Module 130;
A first optical transmission / reception module 120 for applying a 'receive side transmission signal' received from the first TRI-OSA module 130 to the first SERDES circuit unit 110 through the Link_RX line 123; And
And a first SERDES circuit unit 110 for restoring the 'receive side transmission signal' received through the Link_RX line 123 of the first optical transmission / reception module 120 into an HDMI signal, a control signal, and a USB signal. A composite signal transmission device comprising an HDMI signal and a USB signal. The method of claim 1,
The second TRI-OSA module 140,
The 'transmission side transmission signal', which is a composite signal composed of the HDMI signal, the control signal, and the USB signal received through the optical cable 10, is the original signal, the HDMI signal, the control signal, and the USB signal (HDMI_CH0, HDMI_CH1, HDMI_CH2, HDMI_CLK, SCL, SDA, CEC, USB + and USB-signal) and output to the Link_RX0 line (141) and Link_RX1 line (142), characterized in that the HDMI signal and a USB signal transmission device comprising a USB signal. The method of claim 1,
The Link_TX0 line 111 and the Link_TX1 line 112 are
The R signal, the G signal, and the B signal included in the HDMI signal are connected in parallel, respectively, in a size of 10 bits per clock, and the transmission rate is 3.2 Gbps, and when transmitting 20 bits per clock, it has a clock rate of 160 MHz. Composite signal transmission device comprising an HDMI signal and a USB signal. delete 3. The method of claim 2,
The optical cable 10,
'Transmitting side transmission signal' or 'receiving side connected to the first TRI-OSA module 130 and the second TRI-OSA module 140 and configured as a single unit including the HDMI signal, the control signal and the USB signal. Compound signal transmission apparatus comprising an HDMI signal and a USB signal, characterized in that for transmitting the 'transmission signal. In the composite signal transmission method comprising an HDMI signal and a USB signal,
(a) The first optical transmission / reception module (“transmission side transmission signal”) including the HDMI signal, the control signal, and the USB signal inputted by the first SERDES circuit unit 110 through the Link_TX0 line 111 and the Link_TX1 line 112. 120);
(b) The first optical transmission / reception module 120 includes a 'transmission side transmission signal including an HDMI signal, a control signal, and a USB signal through the Link_TX0 line 111 and the Link_TX1 line 112 of the first SERDES circuit unit 110. 'Is applied to the first TRI-OSA module 130 through the Link_TX0 line 121 and Link_TX1 line 122;
(c) The first TRI-OSA module 130 receives the 'transmission side transmission signal' received from the Link_TX0 line 121 and the Link_TX1 line 122 of the first optical transmission / reception module 120 through the optical cable 10. Transmitting to the 2 TRI-OSA module 140;
(d) The second TRI-OSA module 140 restores the 'transmission side transmission signal' received from the first TRI-OSA module 130 through the optical cable 10 to the HDMI signal, the control signal, and the USB signal, thereby link_RX0. Applying to the second optical transmission / reception module 150 via the line 141 and the Link_RX1 line 142;
(e) The second optical transmission / reception module 150 receives the HDMI signal, the control signal, and the USB signal received through the Link_RX0 line 141 and the Link_RX1 line 142 through the Link_RX0 line 152 and the Link_RX1 line 153. 2 applying to the SERDES circuit unit 160; And
(f) 'Send side transmission including the HDMI signal, the control signal and the USB signal which the second SERDES circuit unit 160 receives through the Link_RX0 line 152 and the Link_RX1 line 153 of the second optical transmission / reception module 150. Outputting a signal; composite signal transmission method comprising an HDMI signal and a USB signal comprising a. The method of claim 7, wherein
After the step (f)
(g) The second SERDES circuit unit 160 receives the 'receive side transmission signal' including the DMI signal, the control signal and the USB signal and applies it to the second optical transmission / reception module 150 connected to the Link_TX line 161. Making;
(h) The second optical transmitter / receiver module 150 applies a 'receive side transmission signal' received from the second SERDES circuit unit 160 to the second TRI-OSA module 140 connected to the Link_RX line 151. step;
(i) The first TRI- receives the 'reception side transmission signal' received from the Link_RX line 151 connected to the second optical transmission / reception module 150 by the second TRI-OSA module 140 through the optical cable 10. Transmitting to the OSA module 130;
(j) First optical fiber connected to the Link_RX line 131 to the 'receive side transmission signal' received by the first TRI-OSA module 130 from the second TRI-OSA module 140 through the optical cable 10. Applying to the transmission / reception module 120;
(k) the first optical transmitting / receiving module 120 applying the 'receive side transmission signal' received from the first TRI-OSA module 130 to the first SERDES circuit unit 110 through the Link_RX line 123. ; And
(l) outputting an HDMI signal, a control signal, and a USB signal included in the 'receive side transmission signal' received from the first optical transmission / reception module 120 by the first SERDES circuit unit 110. Composite signal transmission method comprising an HDMI signal and a USB signal.

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