TWI494011B - Apparatus and method of data transmission - Google Patents

Description

Data transfer device and method

The invention relates mainly to data transmission technology, in particular to a wireless video transmission technology for simultaneously transmitting different types of data by using different communication protocols.

In recent years, due to the rapid development of wireless communication technology, a wide variety of portable and handheld devices, such as mobile phones, smart phones, personal digital assistants (PDAs), tablets (Tablet PCs) ) Electronic products are constantly being introduced in the market, and the functions of these electronic products are increasingly diversified. In addition, due to the convenience of these devices, these devices have also become one of the necessities of people's lives. In addition, with the advancement of network transmission technology, the transmission of data or remote operation by these devices and remote devices also brings more convenience to users.

In general, the current main wireless audio and video transmission technology can be mainly divided into software compression and hardware compression on the transmission end. Wi-di technology promoted by Intel, the international manufacturer of software compression. It captures 20~30 pieces of display data from the underlying GPU per second, then compresses it with the application, and then transmits the wireless video and audio data to the receiving end through Wi-Fi technology. However, the way software is compressed is more than the hardware resources of the computer. The hardware compression method uses a chip to compress video and audio data, and then transmits it to the receiving end. Using software compression saves the computer's hardware resources, but the relative cost is higher. Therefore, how to reduce the resources and costs consumed by compression will be an important consideration.

In view of the above problems of the prior art, the present invention provides a data transmission method capable of simultaneously transmitting wireless video transmission technologies of different types of data by using different communication protocols.

According to an embodiment of the present invention, a data transmission device includes: a first display unit for displaying a display data, wherein the display data includes a static data and a video material; and a memory unit for storing the above Static data and the above-mentioned audio and video data; a processing unit for capturing the static data from the memory unit, and outputting the static data captured, and receiving the video data by the memory unit, and transmitting the data in a stream And outputting the audio and video data; an encoder for encoding the static data and the audio and video data output by the processing unit; and a first network module for receiving the encoded static data and the audio and video data, and using The first network protocol transmits the static data and transmits the video data to a remote device by using a second network protocol.

According to an embodiment of the present invention, a data transmission method is provided. The method for determining a wireless network transmission includes: determining whether a display material of a first display unit includes a static data and a video material; and if the display data includes the foregoing The static data and the audio and video data are transmitted by using a first network protocol and transmitting the video data to a remote device by using a second network protocol.

1 is a block diagram showing a data transfer apparatus 100 according to an embodiment of the present invention. As shown in the figure, a data transmission device 100 according to an embodiment of the invention includes a first display unit 110, a memory unit 120, a processing unit 130, an encoder 140, and a first network module. 150.

FIG. 2 is a schematic diagram showing the display unit 110 displaying a display data S1 according to an embodiment of the invention. According to an embodiment of the invention, the first display unit 110 is configured to display a display data S1, wherein the display data S1 includes a static data D1 and a video material D2. As shown in FIG. 2, according to an embodiment of the present invention, the static data D1 can be regarded as a desktop background data, that is, a static image (Graphic) data, and the audio and video data D2 can be regarded as a video material being played, such as a movie. Or animation.

3 is a schematic diagram showing a memory unit and a processing unit according to an embodiment of the invention. According to an embodiment of the invention, the memory unit 120 is configured to store the static data D1 and the video material D2. As shown in FIG. 3, in an embodiment of the present invention, the memory unit 120 can include a first memory 121 and a second memory 122. The first memory 121 is used to store the static data D1, and the second memory 122. It is used to store video and audio material D2. In this embodiment, the first memory 121 is a double data rate memory, and the second memory 122 is a double data rate memory. In particular, the memory unit 120 in the above embodiment may include the first memory 121 and the second memory 122, and is not intended to limit the present invention, if the first memory 121 and the second memory 122 are integrated. In a memory unit, a memory can also be used.

According to an embodiment of the invention, the processing unit 130 is used by the memory unit The static data D1 is captured and outputted by the processing unit 130. The processing unit 130 is further configured to receive the audio and video data D2 by the memory unit 120, and output the audio and video data in a stream. As shown in FIG. 3, in accordance with an embodiment of the present invention, the processing unit 130 includes a first processor 131 and a second processor 132. The first processor 131 is coupled to the first memory 121 and used to be used by the first memory. The static data D1 is extracted from the body 121, and the static data D1 is extracted. The second processor 132 is coupled to the second memory 122, and is used to receive the audio and video data D2 by the second memory 122. The audiovisual material D2 is output by streaming. In this embodiment, the first processor 131 is a central processing unit (CPU), that is, a main processor in the computer system, and the second processor 132 is a graphics processing unit (GPU). Specifically, the processing unit 130 in the foregoing embodiment includes the first processor 131 and the second processor 132, which are not used to limit the present invention. If a processing unit can simultaneously process and integrate the first processor 131, And the action of the second processor 132, a processor can also be used.

According to an embodiment of the invention, the encoder 140 is configured to respectively encode the static data D1 and the audio and video data D2 output by the processing unit. According to an embodiment of the present invention, the first network module 150 is configured to receive the encoded static data D1 and the audio and video data D2, and transmit the encoded static data D1 and use a first network protocol. The second network protocol transmits the encoded video material D2 to a remote device 160. According to an embodiment of the invention, the first network protocol is a Transmission Control Protocol/Internet Protocol (TCP/IP, all of which is abbreviated as TCP/IP), and the second network protocol is a universal plug and play ( UPnP, Universal Plug and Play, the following is a UPnP abbreviation). Through the first network module 150 of the present invention, the static data D1 can be transmitted by means of TCP/IP, and the audio and video data D2 can be transmitted by means of UPnP. UPnP is a set of network protocols proposed by the UPnP ^TM Forum. The goal of the agreement is to enable devices in the home network and corporate network to seamlessly connect to each other and simplify the implementation of related networks. For consumers, UPnP can bring more simple, selectable audio and video transmissions. In this way, UPnP technology products can be started as long as they are physically connected to the network. They can be used together in any network media technology, including wired or wireless, such as Category 5 Ethernet cable, Wi-Fi. , IEEE 1394, telephone line network. Therefore, the first network module 150 transmits the video and audio data D2 through the UPnP method, which can reduce the amount of data required for capturing the audio and video data, thereby improving the usage rate of the system, and the video data D2 is transmitted by stream. The way to transmit, so that the video and audio material D2 is almost free of video and audio compression, thus reducing the resources and cost of video and audio data compression and achieving high quality images.

According to an embodiment of the invention, the data transfer device 100 further includes a compressor (not shown) for compressing the static data D1.

Figure 4 is a block diagram showing the remote device 160 in accordance with an embodiment of the present invention. The remote device 160 includes a second network module 162, a decoder 164, an integrated module 166, and a second display unit 168. According to an embodiment of the invention, the second network module 162 is configured to receive the static data D1 and the audio and video data D2 transmitted by the first network module 150, and the decoder 164 is configured to be decoded by the first network module 150. The static data D1 and the audio and video data D2 are transmitted, and the static data D1 and the audio and video data D2 decoded by the decoder 164 are integrated by the integration module 166 to generate an output data S2, and the output data S2 is displayed by the second display unit 168. According to an embodiment of the invention, The remote device 160 further includes a decompressor (not shown) for decompressing the static data D1 received by the second network module.

Figure 5 is a flow chart 500 showing a method of data transmission in accordance with an embodiment of the present invention. First, in step S510, it is determined whether one of the first display units displays whether the data includes a static data and a video material; if the display data includes the static data and the video data, proceeding to step S520 to use a first network protocol The method of transmitting the static data and transmitting the audio and video data to a remote device by using a second network protocol.

Figure 6 is a flow chart 600 showing a method of data transmission in accordance with another embodiment of the present invention. First, in step S610, the static data is captured by a first memory by a first processor, and the captured static data is output; in step S620, a second memory is used by a second processor. Receiving the audio and video data, and outputting the audio and video data in a stream transmission manner; in step S630, encoding the static data and the audio and video data output by the first processor and the second processor, and encoding the video data Transmitting the static data and the audio and video data to a first network module; and, in step S640, using the first network module to use the first network to encode the static data and the audio and video data. The protocol transmits the static data and transmits the video data to a remote device by using a second network protocol. According to an embodiment of the invention, step S630 further comprises compressing the static data.

Figure 7 is a flow chart 700 showing remote device transmissions in accordance with an embodiment of the present invention. First, in step S710, the static data and the image transmitted by the first network module are received by a second network module. Audio data; in step S720, decoding the static data and the video data received by the second network module; in step S730, integrating the decoded static data and the video data to generate an output data; S740, displaying the output data in a second display unit. According to an embodiment of the invention, step S730 further comprises decompressing the static data.

The data transmission method proposed by the invention can simultaneously transmit wireless video transmission technology of different types of data by using different communication protocols. In the development of computer technology, in order to achieve faster processing speed, it has gradually evolved from a serial processing method to a parallel parallel processing method. At present, the way of capturing and processing wireless video is still based on serial processing, which greatly reduces the usage rate of the computer system. Therefore, the data transmission method proposed by the present invention uses a parallel processing method to transmit the static data (desktop background) of the computer and the audiovisual material (animated video and audio) into two parts. Static data and audio-visual data are transmitted through different network transmission protocols. For example, static data can be transmitted by TCP/IP, and parts of audio-visual data can be transmitted by using UPnP, which can greatly reduce each time. The amount of data captured by the video and audio increases the usage rate of the system. Since the part of the animation and audio is transmitted by means of streaming (sequential transmission), the video and audio data can be hardly compressed, thereby reducing the compression of audio and video data. Resources and costs can achieve high quality images.

The specific features, structures, or properties mentioned in the "invention" or "embodiment" referred to in the specification may be included in at least one embodiment of the present specification. Therefore, statements that appear in different places, "in one embodiment," may not all refer to the same embodiment. In addition, this particular feature, structure or property may also be combined with one or one in any suitable manner. The above examples are combined.

The embodiments disclosed herein will readily appreciate the above advantages for anyone skilled in the art. After reading the contents of the specification, any person skilled in the art can make appropriate changes and substitutions in a broad manner without departing from the spirit and scope of the invention. Therefore, the embodiments disclosed in the present specification are intended to protect the scope of the claims of the present invention and are not intended to limit the scope of the invention.

100‧‧‧ data transfer device

110‧‧‧First display unit

120‧‧‧ memory unit

121‧‧‧First memory

122‧‧‧Second memory

130‧‧‧Processing unit

131‧‧‧First processor

132‧‧‧second processor

140‧‧‧Encoder

150‧‧‧First Network Module

160‧‧‧Remote device

162‧‧‧Second network module

164‧‧‧Decoder

166‧‧‧ integrated module

168‧‧‧Second display unit

500, 600, 700‧‧‧ flow chart

D1‧‧‧Static data

D2‧‧‧ audio and video materials

S1‧‧‧ Display information

S2‧‧‧Output data

S510, S520, S610, S620, S630, S640, S710, S720, S730, S740‧‧ steps

FIG. 1 is a block diagram showing a video call switching system 100 according to an embodiment of the invention.

FIG. 2 is a schematic diagram showing the display unit 110 displaying a display data S1 according to an embodiment of the invention.

3 is a schematic diagram showing a memory unit and a processing unit according to an embodiment of the invention.

Figure 4 is a block diagram showing the remote device 160 in accordance with an embodiment of the present invention.

Figure 5 is a flow chart 500 showing a method of data transmission in accordance with an embodiment of the present invention.

Figure 6 is a flow chart 600 showing a method of data transmission in accordance with another embodiment of the present invention.

Figure 7 is a flow chart 700 showing remote device transmissions in accordance with an embodiment of the present invention.

100‧‧‧ data transfer device

110‧‧‧First display unit

120‧‧‧ memory unit

130‧‧‧Processing unit

140‧‧‧Encoder

150‧‧‧First Network Module

160‧‧‧Remote device

S1‧‧‧ Display information

S2‧‧‧Output data

Claims (17)

A data transmission device comprising: a first display unit for displaying a display data, wherein the display data comprises a static data and a video and audio data; a memory unit for storing the static data and the audio and video data; The unit is configured to capture the static data by the memory unit, and output the captured static data, and receive the audio and video data by the memory unit, and output the audio and video data in a stream transmission manner; an encoder, And the first network module is configured to receive the encoded static data and the audio and video data, and transmit the data by using a first network protocol. The encoded static data and the encoded audio and video data are transmitted to a remote device by using a second network protocol. The data transmission device of claim 1, wherein the memory unit comprises: a first memory for storing the static data; and a second memory for storing the video data. The data transmission device of claim 2, wherein the processing unit comprises: a first processor, configured to capture the static data from the first memory, and output the captured static data; a second processor is configured to receive the video and audio data from the second memory, and output the video and audio data in the manner of the above-mentioned streaming transmission. The data transmission device of claim 2, wherein the first memory system doubles the data rate memory, and the second memory system maps the double data rate memory. The data transmission device of claim 3, wherein the first processor is a central processing unit, and the second processor is a graphics processor. The data transmission device of claim 1, further comprising a compressor for compressing the static data. The data transmission device of claim 1, wherein the first network protocol is a TCP/IP protocol, and the second network protocol is a UPnP protocol. The data transmission device of claim 1, wherein the remote device comprises: a second network module, receiving the static data and the audio and video data transmitted by the first network module; The device is configured to decode the static data and the audio and video data; an integrated module for integrating the decoded static data and the audio and video data to generate an output data; and a second display unit for displaying the output data. The data transmission device of claim 7, further comprising: a decompressor for decompressing the static data received by the second network module. A data transmission method suitable for a wireless network transmission includes: determining whether a data displayed by one of the first display units includes a static resource And the audiovisual data; and if the display data comprises the static data and the audiovisual data, transmitting the static data by using a first network protocol and transmitting the audio and video data to a far distance by using a second network protocol End device. The method for transmitting data according to claim 10, further comprising: capturing, by a first processor, the static data from a first memory, and outputting the static data captured; The processor receives the video and audio data from a second memory, and outputs the video and audio data in a stream transmission manner; and encodes the static data and the audio and video data output by the first processor and the second processor, and The encoded static data and the audio and video data are transmitted to a first network module; and the encoded static data and the audio and video data are transmitted to the remote device by the first network module. The data transmission method according to claim 11, wherein the first processor is a central processing unit, and the second processor is a graphics processor. The data transmission method according to claim 11, wherein the first memory system is a double data rate memory, and the second memory system is a double data rate memory. For example, the data transmission method described in claim 10 of the patent application further includes: compressing the static data. For example, the data transmission method described in claim 10, The first network protocol is a TCP/IP protocol, and the second network protocol is a UPnP protocol. The data transmission method of claim 10, further comprising: receiving, by a second network module, the static data and the audio and video data transmitted by the first network module; decoding by the second The static data and the audio and video data received by the network module; integrating the decoded static data and the audio and video data to generate an output data; and displaying the output data in a second display unit. For example, the data transmission method described in claim 16 of the patent application further includes decompressing the static data.