TW201304502A - An image signal send device, receive device, transmission system, and method thereof - Google Patents

Abstract

An image signal send device includes: a video separate unit, more than one video adjustment unit and a video integrate unit. Each video adjustment unit receives more than one image signal from the video separate unit and adjusts an original frame rate of each image signal to more than one new frame rate. The video integrate unit is used to integrate each image signal to a integrate image signal, than send the integrate image signal to a far end by a transport path. A maximum frame rate of the transport path is equal to sum of each new frame rate or the original frame rate, thereby improving an efficiency of transmit image signal.

Description

Video signal transmitting device, receiving device, transmission system and method thereof

The invention relates to a signal transmission system, and in particular to an image signal transmission device, a receiving device, a transmission system and a method thereof.

With the development of image processing technology, video signals have entered the era of high image quality, but high-quality video signals usually have a large data capacity, so when transmitting high-quality video signals, it may be limited by the original transmission line. The transmission bandwidth is too large to transmit, and other methods are required for high-quality image transmission.

For example, when a user wants to transmit a high-quality video signal to a remote end, the transmission line is often used as a transmission medium. However, since the data of the high-definition video signal is bulky, it may not be directly transmitted through the image compression. Transmission lines with limited bandwidth are transmitted.

Therefore, in order to perform high-definition video signal transmission on a transmission line with a limited bandwidth, a common method is to use a compression method or to replace a transmission line having a higher transmission bandwidth. The foregoing compression method mainly transmits the image signal by compressing and then transmitting the image signal to reduce the data bandwidth occupied by the plurality of image signals, and compresses the foregoing compression at the receiving end by using a corresponding decompression method. The image signal is restored, and the restored image signal may be distorted.

If the method of replacing the transmission line with a higher transmission bandwidth is adopted, although the problem of high-definition video signal transmission can be solved, the cost of the image signal transmission is relatively increased.

Therefore, the foregoing compression method or the method of replacing the transmission line may have troublesome problems. How to provide an image signal transmission system has become one of the problems that researchers are currently to solve.

An embodiment of the present invention provides an image signal transmitting apparatus, a receiving apparatus, a transmission system, and a method thereof, which are configured to reduce a video signal by using a split image signal as a plurality of sets of image signals and adjust a frame rate of the image signal during transmission. The high-quality video signal is transmitted under the limited transmission bandwidth of the original transmission line.

The image signal transmitting device according to the present invention is connected to an image device, and the image signal transmitting device comprises: a video dividing unit for dividing the image signal provided by the image device into more than one group of image signals; and more than one video device. The adjusting unit is configured to respectively receive the divided one or more image signals, and adjust the original frame rate of the divided image signals to be more than one new frame rate; and a video integration unit to merge the divided frames The image signal is an integrated image signal having an original frame rate, and the integrated image signal is transmitted to the remote end through a transmission channel, wherein the sum of the new frame rates of the divided image signals is less than or equal to the bandwidth of the transmission channel. Maximum frame rate.

The image signal receiving device according to the present invention is connected to a display device, and the image signal receiving device comprises: a video separating unit for receiving an integrated image signal having an original frame rate, and separating the integrated image signal into a The above-mentioned new frame rate of one or more video signals; and more than one video adjustment unit, each video adjustment unit is configured to respectively receive each video signal with a new frame rate output by the video separation unit, and raise or lower each And outputting a video signal to each of the new frame rates; and a video synthesizing unit for receiving the video signals output by the video adjusting units, and combining the image signals into an image synthesizing signal for outputting to the display device.

The image signal transmission system according to the present invention is respectively connected to an image device and a display device. The image signal transmission system includes: an image signal transmission device for receiving an image signal having an original frame rate provided by the image device. Dividing the image signal into a plurality of image signals, and combining the divided image signals into an integrated image signal having an original frame rate for transmitting the integrated image signal; and an image signal receiving device for receiving the original image signal The frame rate is integrated with the image signal, and the integrated image signal is separated into image signals having more than one new frame rate, wherein the image signal transmitting device adjusts the original frame rate of each image signal to each new frame rate before combining the integrated image signals. After separating the integrated image signals, the image signal receiving device also raises or lowers each new frame rate of each image signal, and combines the image signals into an image composite signal and outputs the image to the display device.

The image signal transmission method according to the present invention is applicable to transmission between an image signal transmission device and an image signal receiving device, and includes the following steps: dividing the received image signal into more than one group of images through the image signal transmission device The original frame rate of each of the divided image signals is adjusted by the image signal transmitting device to be more than one new frame rate; and the image signal transmitting device combines each image signal having each new frame rate into an integrated image having an original frame rate. The signal is transmitted to the remote end through the image signal transmitting device and a transmission channel to transmit the integrated image signal having the original frame rate.

In summary, the present invention can perform high-quality video signal transmission operation under the original transmission bandwidth, which is mainly divided into multiple groups of image signals at the transmitting end, and then adjusts the frame rate of each image signal and merges them to Reduce the data capacity of each image signal transmission. Then, the image signal transmission operation is performed, and the frame rate of each image signal is restored at the receiving end, and then the image signals are combined and output to the display device, thereby improving the transmission efficiency of the image signal and relatively increasing the availability of the transmission bandwidth.

The detailed description of the present invention and the accompanying drawings are to be understood by the claims The scope is subject to any restrictions.

[Image Transmission Example]

Please refer to FIG. 1A, which is a schematic diagram of image signal transmission according to an embodiment of the present invention. The video signal transmission system of FIG. 1A includes an image signal transmission device 150 and an image signal receiving device 300. A transmission image channel is transmitted between the image signal transmitting device 150 and the image signal receiving device 300. The integrated image signal includes two image signals. The transmission channel may be, for example, an original transmission line, or other Internet transmission medium such as a CAT 5 twisted pair cable or optical fiber, or a bus bar. In addition, the number of transmissions of the image signals may be two or more, and the data capacity, frame rate or type of the image signals may be different.

The image signal transmitting device 150 can perform a dividing, adjusting and integrating process to divide the image signal into two image signals, and then respectively adjust the original frame rate of the two image signals, and integrate the same into the Integrate image signals. The video signal receiving apparatus 300 can perform a separation and synthesizing process to receive, separate, and re-adjust the video signal and frame rate output by the composite video signal transmitting apparatus 150. The above frame rate refers to the picture update rate, which is used to measure the number of display frames, and the frame rate is measured in frames per second (FPS) or Hertz (Hz).

The integrated video signal 200 in the transmission channel includes a first video signal 200a having a first frame rate and a second video signal 200b having a second frame rate. The sum of the first frame rate of the first image signal 200a and the second frame rate of the second image signal 200b in the transmission channel may be the maximum frame rate within the bandwidth of the transmission channel, or may be the original frame Rate, and the first frame rate or the second frame rate may be less than the original frame rate. In addition, if there are other design requirements, the sum of the first frame rate and the second frame rate may also be smaller than the original frame rate.

For example, when the image signal transmitting device 150 receives the image signal with the original frame rate of 60 Hz, the image dividing signal can be divided into the first image signal 200a and the second image signal 200b by the dividing process of the image signal transmitting device 150. Then, the first video signal 200a with an original frame rate of 60 Hz can be adjusted to the first video signal 200a with a first frame rate of 30 Hz through the adjustment procedure. Similarly, the adjustment program of the image signal transmitting device 150 can adjust the second image signal 200b with an original frame rate of 60 Hz to the second image signal 200b with a second frame rate of 30 Hz. At this time, the sum of the first frame rate 30 Hz of the first video signal 200a in the transmission channel and the second frame rate 30 Hz of the second image signal 200b may be the maximum frame rate within the bandwidth of the transmission channel, or may be The original frame rate is 60 Hz. Then, the first image signal 200a and the second image signal 200b can be integrated into the integrated image signal 200 through the integration program and transmitted through the transmission channel.

Next, when the image signal receiving device 300 receives the first image signal 200a with the first frame rate of 30 Hz and the second image signal 200b with the second frame rate of 30 Hz, the separation and adjustment process of the transmitted image signal receiving device 300 can be performed. The first video signal 200a having the first frame rate of 30 Hz is adjusted to the first video signal 200a whose original frame rate is 60 Hz. Similarly, the adjustment program of the image signal receiving module 300 can adjust the second image signal 200b with the second frame rate of 30 Hz to the second image signal 200b with the original frame rate of 60 Hz.

Since the frame rate is proportional to the data capacity, the low frame rate represents a low data capacity. In other words, the embodiment of the present invention can realize the transmission operation of high-quality images under a limited transmission bandwidth by dividing the image signal and adjusting the frame rate. In addition, since the conventional image compression processing method is not used, the output quality of the image signal after transmission is not affected, and in particular, the transmission line having a higher transmission bandwidth is not required to be replaced, so that the problem of increasing the transmission cost of the image signal can be avoided.

1B is a schematic diagram of another video signal transmission according to an embodiment of the present invention. The image transmission system of FIG. 1B includes an image signal transmitting device 150 and an image signal receiving device 300. An integrated video signal 210 is transmitted between the video signal transmitting device 150 and the video signal receiving device 300. The integrated video signal 210 includes three video signals. The division, adjustment, integration, separation, re-adjustment and synthesis procedure of the image signal transmitting device 150 and the image signal receiving device 300 are the same as those of the foregoing embodiment, and will not be described below.

The integrated video signal 210 in the transmission channel includes a first video signal 210a having a first frame rate, a second video signal 210b having a second frame rate, and a third video signal 210c having a third frame rate. The sum of the first frame rate, the second frame rate, and the third frame rate may be a maximum frame rate within a bandwidth of the transmission channel, or may be an original frame rate before the image signal transmission module 150 adjusts. For example, when the original frame rate is 60 Hz, the first frame rate, the second frame rate, and the third frame rate may be designed as 20 Hz, 20 Hz, and 20 Hz, respectively, or 40 Hz, 10 Hz, and 10 Hz, or, 30 Hz, 20 Hz, and 10 Hz. , or 10Hz, 40Hz and 10Hz, and so on.

Therefore, the adjusted frame rate can be designed corresponding to the number of divided image signals. In other words, the adjustment rule may be to divide the original frame rate by the number of divided image signals to obtain the adjusted frame rate, or to subtract the original frame rate by a specific value (for example, any integer value, and less than The original frame rate is obtained to obtain the adjusted frame rate value, or is set by the user. The adjusted frame rate is preferably an integer, and the sum of the adjusted frame rates may be the maximum frame rate within the bandwidth of the transmission channel, or may be the original frame rate. In addition, the foregoing adjustment rules are merely illustrative and are not limited thereto.

[Image Transmission Apparatus Example]

Please refer to FIG. 2. FIG. 2 is a system block diagram of an image signal transmitting apparatus according to an embodiment of the present invention. The video signal transmitting device 150 includes a host connecting unit 114, a video dividing unit 120, a first video adjusting unit 1041, a second video adjusting unit 1042, a video integrating unit 1043, a processing unit 108, and an operation interface 112.

The image signal transmitting device 150 is connected to the computer system 11 through the host connecting unit 114 to receive an image signal having an original frame rate from the computer system 11. The host connection unit 114 can be a digital video interface (DVI) module, a high-resolution multimedia interface (HDMI) module, a display port (DP) or other video interface modules such as VGA video. The first computer system 11 can be a monitor, a camera, a desktop host, a tablet, a server, a notebook, a video player (such as a Blu-ray player, a DVD or a VCD), or an HDCP-compliant device. Device equipment. The image signal transmitting device 150 can also be disposed in the computer system 11 (or other image device, switch, splitter, matrix, extender). Since the switch, the splitter, the matrix or the extender is a commonly used signal processing device, it will not be described in detail herein.

The video dividing unit 120 is connected to the host connecting unit 114. The video segmentation unit 120 is configured to receive the image signal output by the host connection unit 114, and divide the image signal into a first image signal and a second image signal. In addition, the video segmentation unit 120 divides the video signal into more than one group of video signals according to the use requirement. When the divided video signal is more than one set of video signals, the number of settings of the video adjustment unit may be increased correspondingly. For example, when the split image signal is 4 groups, 4 video adjustment units can be added correspondingly, and so on. In other words, the number of settings of the video adjustment unit depends on the number of divided video signals.

The first video adjustment unit 1041 is connected to the video splitting unit 120. The first video adjustment unit 1041 is configured to receive the first video signal having the original frame rate, and adjust the original frame rate of the first video signal to be the first frame rate. The first video adjustment unit 1041 can be, for example, a digital signal processing chip, which can be used to process image scaling, or image format conversion.

The second video adjustment unit 1042 is connected to the video splitting unit 120. The second video adjustment unit 1042 is configured to receive the second image signal having the original frame rate, and adjust the original frame rate of the second image signal to the second frame rate. The second video adjustment unit 1042 can be, for example, a digital signal processing chip that can be used to process image scaling, or image format conversion.

The video integration unit 1043 is connected to the first video adjustment unit 1041 and the second video adjustment unit 1042, respectively. The video integration unit 1043 is configured to combine the first video signal output by the first video adjustment unit 1041 and the second video signal output by the second video adjustment unit 1042 into an integrated video signal having an original frame rate. The frame rate of the integrated video signal can be set by the user to the original frame rate, or the frame rate value can be determined by other computer calculation methods. The video integration unit 1043 transmits the foregoing integrated video signal to the remote end (or the next level circuit), wherein a transmission connection unit (not labeled) may exist between the video integration unit 1043 and the remote end to transmit the output integrated video signal. The format is converted to the transport format used by the transport channel. The transmission connection unit described above may also be omitted if transmission format conversion is not required.

The processing unit 108 is connected to the video signal transmitting device 150. The processing unit 108 can perform the segmentation process by the video segmentation unit 120, the first video adjustment unit 1041 and the second video adjustment unit 1042 to perform the frame rate adjustment procedure, and the control video integration unit 1043 to execute the image signal integration process. Processing unit 108 can be a central processing unit, a microcontroller or an embedded controller or a digital logic loop, and the like.

The operation interface 112 is coupled to the processing unit 108. The operation interface 112 can be one or more buttons or buttons, an On Screen Display (OSD) interface, an OSB interface, or an infrared (IR) communication interface. The operation interface 112 can receive an operation command from the user and transmit the operation command to the processing unit 108. The processing unit 108 further sets the frame rate output by the first video adjustment unit 1041 and the second video adjustment unit 1042 according to the instruction of the operation instruction. In another embodiment of the present invention, if the fixed mode is adopted (that is, the frame rate output by the first video adjusting unit 1041 and the second video adjusting unit 1042 is fixed), the operation interface 112 may be omitted.

In addition, for the convenience of description, in the embodiment of the present invention, the processing unit 108 and the operation interface 112 are disposed outside the image signal transmitting device 150. In a preferred embodiment, the processing unit 108 and the operation interface 112 are disposed inside the image signal transmitting device 150, and the processing unit 108 can be respectively coupled to the video dividing unit 120 and the first video adjusting unit 1041. The second video adjustment unit 1042 and the video integration unit 1043 are connected to perform related signal processing or transfer operations.

[Image receiving device embodiment]

Referring to FIG. 3A, FIG. 3A is a system block diagram of an image signal receiving apparatus according to an embodiment of the present invention. Some components in the image signal receiving device 300 are the same as those in the image signal transmitting device 150, and will not be described below. The video signal receiving apparatus 300 includes a first video adjusting unit 1041a, a second video adjusting unit 1042a, a video separating unit 1043a, a video synthesizing unit 120a, a processing unit 108a, an operation interface 112a, and a display connecting unit 114a.

The video separation unit 1043a receives the integrated video signal having the original frame rate from the far end. The distal end may also refer to a higher level circuit. Similarly, there may be a transmission connection unit (not labeled) between the video separation unit 1043a and the remote end to convert the transmission format of the received integrated video signal into a transmission format used by the video separation unit 1043a. The transmission connection unit described above may also be omitted if transmission format conversion is not required. The video separation unit 1043a is configured to separate the integrated video signal into a first video signal having a first frame rate and a second video signal having a second frame rate.

The first video adjustment unit 1041a is connected to the video separation unit 1043a. The first video adjustment unit 1041a receives the first video signal having the first frame rate. The first video adjustment unit 1041a can have the same function and architecture as the first video adjustment unit 1041. Further, the first video adjustment unit 1041a can have the function of adjusting the first video signal enlargement, reduction, and image format conversion. The first video adjustment unit 1041a can adjust the first frame rate of the first video signal to be the first original frame rate. In addition, the first video adjustment unit 1041a can also increase or decrease the first frame rate of the first video signal to other frame rates or convert the image format according to the usage requirements of the display device 14.

The second video adjustment unit 1042a is connected to the video separation unit 1043a. The second video adjustment unit 1042a receives the second video signal having the second frame rate. The second video adjustment unit 1042a may have the same function and architecture as the second video adjustment unit 1042. Further, the second video adjustment unit 1042a may have a function of adjusting the second video signal to enlarge, reduce, and convert the image format. The second video adjustment unit 1042a can adjust the second frame rate of the second video signal to a second original frame rate. In addition, the second video adjustment unit 1042a can also increase or decrease the second frame rate of the second video signal to another frame rate or convert the image format according to the usage requirements of the first display device 14 or the second display device 16.

The processing unit 108a is connected to the video signal receiving device 300. The processing unit 108a can be used to control the separation process of the video signal by the video separation unit 1043, the first video adjustment unit 1041a and the second video adjustment unit 1042a to perform a frame rate adjustment procedure, and the video synthesis unit 120a to perform a synthesis process of the video signal. The operation interface 112a is connected to the processing unit 108a. The operation interface 112a can receive an operation command from the user and transmit the operation command to the processing unit 108a. The processing unit 108a further sets the frame rate output by the first video adjustment unit 1041a and the second video adjustment unit 1042a according to the instruction of the operation instruction.

In addition, in another embodiment of the present invention, if the fixed mode is adopted (that is, the frame rate output by the first video adjusting unit 1041a and the second video adjusting unit 1042a is fixed), the operation interface 112a may be omitted. Similarly, in a preferred embodiment, the processing unit 108a and the operation interface 112a may be disposed inside the image receiving apparatus 300, and the processing unit 108a may be separately connected to the video separation unit 1043a and the first video adjustment unit. The first video adjusting unit 1042a and the video synthesizing unit 120a are connected to perform signal processing or transfer operations.

The video synthesizing unit 120a is connected to the first video adjusting unit 1041a and the second video adjusting unit 1042a, respectively. The video synthesizing unit 120a can receive the first video signal and the second video signal output by the first video adjusting unit 1041a and the second video adjusting unit 1042a, and combine the first video signal and the second video signal into an image synthesizing signal.

The display connection unit 114a is connected to the video synthesizing unit 120a. The display connection unit 114a can be a digital video interface (DVI) module, a high-resolution multimedia interface (HDMI) module, a display port (DP) or other video interface modules such as VGA video. In addition, the display connection unit 114a may be a connection socket corresponding to the interface module for electrically connecting to the display device 14 correspondingly to the connection plug having the same interface.

The image receiving device 300 is connected to the display device 14 via the display connecting unit 114a to transmit the synthesized image signal to the display device 14 for display. The first image signal and the second image signal can be divided and displayed on the display screen of the display device 14. In turn, the effect of image multiplication can be achieved. The display device 14 can be a video output device such as a cathode image tube (CRT) screen or a liquid crystal screen. The image signal receiving device 300 may also be disposed in the display device 14 (or other display device, switch, distributor, matrix, extender).

Referring to FIG. 3B, FIG. 3B is another system block diagram of an image signal receiving apparatus according to an embodiment of the present invention.

The embodiment of FIG. 3B differs from the embodiment of FIG. 3A in that the video synthesizing unit 120a is omitted in the embodiment of FIG. 3B. The first video adjustment unit 1041a is connected to the first display device 15 through the first display connection unit 115a. The second video adjustment unit 1042a is connected to the second display device 16 through the second display connection unit 116a. The components of the video signal receiving device 310 in FIG. 3B are the same as those of the video signal receiving device 300 in FIG. 3A, and will not be described below.

The first display device 15 and the second display device 16 of FIG. 3B may constitute an architecture of a video wall. In addition, the number of display devices connected to the image receiving device 300 in FIG. 3B is merely an example, and the number of visual use requirements is increased to two or more, and the number of the video adjusting unit and the display connecting unit is increased correspondingly.

Similarly, in a preferred embodiment, the processing unit 108a and the operation interface 112a may be disposed inside the image signal receiving apparatus 300, and the processing unit 108a may be separately adjusted with the video separation unit 1043a and the first video. The unit 1041a and the second video adjustment unit 1042a are connected to perform related signal processing or transfer operations.

[Image Transmission System Embodiment]

Next, please refer to FIG. 4. FIG. 4 is a system block diagram of an image signal transmission system according to an embodiment of the present invention. The video signal transmission system 400 in FIG. 4 is connected to the computer system 11 and the display device 14, respectively. The image signal transmission system 400 includes an image signal transmission device 150 and an image signal receiving device 300. The image signal transmitting device 150 and the image signal receiving device 300 can be integrated together on a circuit carrier board or an on-board box. The operation principle of the image signal transmitting device 150 and the image signal receiving device 300 has been described in FIG. 2 and FIG. 3A, respectively, and will not be described below. In addition, in principle, the number of video adjustment units in the video signal transmitting device 150 and the video signal receiving device 300 are relatively equal, but the number of video adjusting units in the video signal receiving device 300 can be increased or decreased if other design considerations are made. .

The video integration unit 1043 and the video separation unit 1043 are connected to each other through a transmission channel (for example, a transmission line) or a bus bar. The processing unit 108 can be connected to the video signal transmitting device 150 and the video signal receiving device 300, respectively. The processing unit 108 can be used to control the video segmentation process performed by the video segmentation unit 120, the first video adjustment unit 1041 and the second video adjustment unit 1042 to perform a frame rate adjustment procedure, and the control video integration unit 1043 to perform an integration process of the video signals. The processing unit 108 can be used to control the separation process of the video signal by the video separation unit 1043, the first video adjustment unit 1041a and the second video adjustment unit 1042a to perform a frame rate adjustment procedure, and can be used to control the video synthesis unit 120a to perform image signal synthesis. program.

The operation interface 112 can receive an operation command from the user and transmit the operation instruction to the processing unit 108. The processing unit 108 further sets the first video adjustment unit 1041, the second video adjustment unit 1042, and the first video adjustment unit according to the instruction of the operation instruction. The frame rate output by the 1041a and the second video adjustment unit 1042a. In addition, the number of connections between the computer system and the display device connected to the image signal transmission device 400 in the embodiment of the present invention is merely an example, and is not intended to limit the number of connections between the computer system and the display device. When the number of the computer system is more than two, the number of the host connection unit and the video adjustment unit is increased correspondingly. In addition, when the display device is one or more, the number of the video adjustment unit and the display connection unit is reduced or increased. The image signal receiving device 300 in FIG. 4 can also be replaced with the image signal receiving device 310 in FIG. 3B.

Next, please refer to FIG. 5A. FIG. 5A is a schematic diagram of a display screen after image signal synthesis according to an embodiment of the present invention. After the image signal is divided, the image signal is divided into a first image signal 501, a second image signal 502, a third image signal 503, and a fourth image signal 504. The content of the first video signal 501 is A, the content of the second video signal 502 is B, the content of the third video signal 503 is C, and the content of the fourth video signal 504 is D. After the divided image signals are subjected to the synthesizing process, the screen of FIG. 5A can be presented on the display device 14, and the content is A~D to form a complete image frame. In addition, the first image signal 501, the second image signal 502, the third image signal 503, and the fourth image signal 504 may have the same content, for example, the content A is displayed.

Please refer to FIG. 5B. FIG. 5B is a schematic diagram of another display screen after image signal synthesis according to an embodiment of the present invention. As shown in FIG. 5B, the second image signal 506 can be exchanged between the video image adjusting unit and the third image signal 507 (compared with FIG. 5A), and the display of the third image signal 507 and the fourth image signal 508 can be enlarged. The ratio and the display ratio of the first image signal 505 and the second image signal 506 are reduced. The video adjustment unit may be disposed at an image signal transmitting device end or an image signal receiving device end.

As shown in FIG. 5B, the display area of the first image signal 505 is approximately the same as the second image signal 506. The third image and signal 507 and the fourth image signal 508 respectively enlarge the display ratio, and the display area of the third image signal 507 is approximately the same as the fourth image signal. The display area of the third image signal 507 is approximately larger than the display area of the first image signal 505.

Please refer to FIG. 5C. FIG. 5C is a schematic diagram of another display screen after image signal synthesis according to an embodiment of the present invention. As shown in FIG. 5C, the first image signal can be rotated by 180 degrees through the video adjustment unit (here, compared with FIG. 5B), and the second image signal 506 can be rotated by 270 degrees or 90 degrees through the video adjustment unit. In addition, the above embodiment takes four divided video signals as an example, but does not limit the number of video signals by the dividing program. The number of the divided image signals may also be 2, 3, 4, 6, 8, 9, 16, 24 and other positive integer values greater than zero.

Please refer to FIG. 4 and FIG. 6 simultaneously. FIG. 6 is a flowchart of a method for transmitting video signals according to an embodiment of the present invention. First, in step S610, the video splitting unit 120 of the video signal transmitting device 150 can divide the received video signal into a first video signal and a second video signal.

Then, in step S613, the first image signal and the second image signal having the original frame rate are received by the image signal transmitting device 150, and the original frame rate of the first image signal is adjusted to be the first frame rate, and the second The original frame rate of the video signal is the second frame rate. The first frame rate and the second frame rate may be lower than the original frame rate, thereby reducing the data capacity corresponding to the first image signal and the second image signal. The user can set the first frame rate and the second frame rate of the image signal transmitting device 150 through the operation interface 112.

Then, in step S615, the image signal transmitting device 150 combines the adjusted first image signal and the second image signal into an integrated image signal having an original frame rate, wherein the sum of the first frame rate and the second frame rate may be less than or equal to The maximum frame rate within the bandwidth of the transmit channel, or the original frame rate. In step S617, the image signal transmitting device 150 can output or transmit the integrated image signal having the maximum frame rate or the original frame rate to the far end (or the next level circuit) through the transmission channel. In step S619, the video signal receiving apparatus 300 can receive the integrated video signal from the far end (or the upper level circuit) having the maximum frame rate or the original frame rate through the transmission channel.

Next, in step S621, the image signal receiving apparatus 300 separates the integrated image signal having the maximum frame rate or the original frame rate into a first image signal having a first frame rate and a second image signal having a second frame rate. .

In step S623, the image signal receiving apparatus 300 adjusts the first frame rate of the first video signal to the original frame rate, and the second frame rate of the second image signal is the original frame rate. In another embodiment of the present invention, the image signal receiving device 300 can increase or decrease the first frame rate of the first image signal to another frame rate (which can be any integer value) and output the image to the video synthesizing unit 120a.

Similarly, the image signal receiving device 300 can increase or decrease the second frame rate of the second image signal to another frame rate (which can be any integer value) and output the image to the video synthesizing unit 120a. The user can set the first frame rate and the second frame rate of the image signal receiving device 300 through the operation interface 112.

In step S625, the video synthesizing unit 120a of the video signal receiving apparatus 300 combines the first video signal and the second video signal having the original frame rate into a composite video signal, and outputs the synthesized video signal to the display device 14 through the display connecting unit 114a. In another embodiment of the present invention, the image signal receiving apparatus 300 may further combine a first image signal having a first frame rate (which may be an arbitrary integer value) and a second frame rate (which may be an arbitrary integer value). The second image signal is a composite image signal and is output to the display device 14 through the display connection unit 114a. In addition, in this embodiment, two divided video signal transmissions are used for description, which is not limited thereto. In other words, the number of divisions of the image signals may be two or more, and the The data capacity, frame rate or type of video signals can vary.

In summary, the present invention can perform high-quality video signal transmission operation under the original transmission bandwidth, which is mainly divided into multiple groups of image signals at the transmitting end, and then adjusts the frame rate of each image signal and merges them to Reduce the data capacity of each image signal transmission. Then, the image signal transmission operation is performed, and the frame rate of each image signal is restored at the receiving end, and then the image signals are combined and output to the display device, thereby improving the transmission efficiency of the image signal and relatively increasing the availability of the transmission bandwidth.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the invention.

11. . . computer system

112. . . Operation interface

112a. . . Operation interface

114. . . Host connection unit

114a. . . Display connection unit

108. . . Processing unit

108a. . . Processing unit

1041. . . First video adjustment unit

1041a. . . First video adjustment unit

1042. . . Second video adjustment unit

1042a. . . Second video adjustment unit

1043. . . Video integration unit

1043a. . . Video separation unit

120. . . Video split unit

120a. . . Video synthesis unit

14. . . Display device

115a. . . First display connection unit

116a. . . Second display connection unit

15. . . First display device

16. . . Second display device

150. . . Video signal transmitter

200. . . Integrated image signal

200a. . . First image signal

200b. . . Second image signal

210. . . Integrated image signal

210a. . . First image signal

210b. . . Second image signal

210c. . . Third image signal

300. . . Video signal receiving device

310. . . Video signal receiving device

400. . . Video signal transmission system

501. . . First image signal

502. . . Second image signal

503. . . Third image signal

504. . . Fourth image signal

505. . . First image signal

506. . . Second image signal

507. . . Third image signal

508. . . Fourth image signal

S610~S625. . . Flow chart step description

FIG. 1A is a schematic diagram of image signal transmission according to an embodiment of the present invention.

FIG. 1B is a schematic diagram of another video signal transmission according to an embodiment of the present invention.

2 is a system block diagram of an image signal transmitting apparatus according to an embodiment of the present invention.

FIG. 3A is a system block diagram of an image signal receiving apparatus according to an embodiment of the present invention.

FIG. 3B is another block diagram of a system for receiving an image signal according to an embodiment of the present invention.

4 is a system block diagram of an image signal transmission system according to an embodiment of the present invention.

FIG. 5A is a schematic diagram of a display screen after image signal synthesis according to an embodiment of the present invention.

FIG. 5B is a schematic diagram of another display screen after image signal synthesis according to an embodiment of the present invention.

FIG. 5C is a schematic diagram of another display screen after image signal synthesis according to an embodiment of the present invention.

FIG. 6 is a flowchart of a method according to an embodiment of the present invention.

108. . . Processing unit

1041. . . First video adjustment unit

1041a. . . First video adjustment unit

1042. . . Second video adjustment unit

1042a. . . Second video adjustment unit

1043. . . Video integration unit

1043a. . . Video separation unit

11. . . computer system

112. . . Operation interface

114. . . Host connection unit

114a. . . Display connection unit

120. . . Video split unit

120a. . . Video synthesis unit

14. . . Display device

150. . . Video signal transmitter

300. . . Video signal receiving device

400. . . Video signal transmission system

Claims (13)

An image signal transmitting device is connected to an image device. The image signal transmitting device includes: a video dividing unit for dividing the image signal provided by the image device into more than one group of image signals; and one or more video adjusting units. The image frame is configured to receive the plurality of divided image signals, and adjust the original frame rate of each of the divided image signals to be more than one new frame rate; and a video integration unit for combining the divided images. The signal is an integrated image signal having the original frame rate, and the integrated image signal is transmitted to the remote end through a transmission channel; wherein the sum of the new frame rates of the divided image signals is less than or equal to the frequency of the transmission channel The maximum frame rate over a wide range. The image signal transmitting device of claim 1, wherein the image signal transmitting device is respectively disposed in the image device, the switch, the distributor, the matrix or the extender that provides the image signal. The image signal transmitting device according to claim 1, wherein the image device is a camera, a desktop computer, a server, a notebook computer or a video player. An image signal receiving device is connected to a display device. The image signal receiving device comprises: a video separating unit for receiving an integrated image signal having an original frame rate, and separating the integrated image signal into more than one type. a plurality of video signals of a new frame rate; and one or more video adjustment units, each of the video adjustment units respectively receiving the image signals having the new frame rate output by the video separation unit, and raising or adjusting The new frame rate of each of the image signals is outputted and output. The video signal receiving device of claim 4, further comprising a video synthesizing unit, configured to receive each of the video signals output by the video adjusting unit, and combine the video signals into an image synthesizing signal. Output to the display device. The image signal receiving device of claim 4, wherein each of the video adjusting units further rotates, enlarges or reduces the angle or display ratio of each of the received image signals, and outputs the image to the video synthesizing unit. The image signal receiving device of claim 4, wherein the image signal receiving device is disposed in the display device, the switch, the distributor, the matrix or the extender. An image signal transmission system is respectively connected to an image device and a display device. The image signal transmission system includes: an image signal transmission device for receiving an image signal provided by the image device having an original frame rate, so as to The image signal is divided into more than one image signal, and the divided image signals are combined into an integrated image signal having the original frame rate to transmit the integrated image signal; and an image signal receiving device is configured to receive Having the integrated image signal of the original frame rate, and separating the integrated image signal into an image signal having more than one new frame rate; wherein the image signal transmitting device adjusts the image signal before combining the integrated image signal The original frame rate is the new frame rate, and the image signal receiving device further increases or decreases the new frame rate of each of the image signals after separating the integrated image signal, and combines the image signals into an image composite signal. Then output to the display device. The image signal transmission system of claim 8, wherein the image signal transmission device is respectively disposed in the image device, the switch, the distributor, the matrix or the extender that provides the image signal. The image signal transmission system of claim 8, wherein the image signal receiving device is disposed in the display device, the switch, the distributor, the matrix or the extender. An image signal transmission method is applicable to transmission between an image signal transmission device and an image signal receiving device. The image signal transmission method includes the following steps: dividing the received image signal by the image signal transmission device into a group or more The image signal transmission device adjusts the original frame rate of the divided image signal to more than one new frame rate; and the image signal transmitting device combines each of the image signals having the new frame rate to have the original An integrated image signal of the frame rate; and transmitting the integrated image signal having the original frame rate to the remote end through the image signal transmitting device and a transmission channel. The image signal transmission method of claim 11, wherein the sum of the new frame rates of the combined image signals is less than or equal to a maximum frame rate within a bandwidth of the transmission channel. The image signal transmission method of claim 11, wherein after the step of transmitting the integrated image signal having the original frame rate to the remote end, the method further comprises: receiving, by the multi-image signal receiving device The integrated image signal of the original frame rate; the integrated image signal having the original frame rate is separated by the image signal receiving device as each of the image signals having the new frame rate; and the image signal receiving device is raised or lowered by the image signal receiving device Each of the new frame rates of the image signal; and the image signal having the new frame rate combined by the image signal receiving device is a composite image signal.