CN101340545B - High-resolution video conference system and method - Google Patents
High-resolution video conference system and method Download PDFInfo
- Publication number
- CN101340545B CN101340545B CN2007101271640A CN200710127164A CN101340545B CN 101340545 B CN101340545 B CN 101340545B CN 2007101271640 A CN2007101271640 A CN 2007101271640A CN 200710127164 A CN200710127164 A CN 200710127164A CN 101340545 B CN101340545 B CN 101340545B
- Authority
- CN
- China
- Prior art keywords
- instant message
- application software
- compression
- message application
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention provides a high resolution video conference system and a method. A plurality of usable digital signals are compressed as a plurality of compressed digital signals by the high resolution video conference system through that the encoding module of a first terminal device is under the high-resolution compression standard; furthermore, the compressed digital signal is transmitted to a second terminal device by an instant transmission application software. A second terminal device decompresses the compressed digital signals under the high-resolution compression standard by an encoding module so as to gain a plurality of image signals; furthermore, the image signals are displayed by a display module. Therefore, the high resolution video conference system of the invention can realize the application of the high resolution video conference even under limited hardware efficacy and network transmission frequency width.
Description
Technical field
The present invention relates to a kind of video conferencing system and method (video conference system andmethod), and particularly relate to a kind of high-resolution video conference system and method (high-definition video conference system and method).
Background technology
In recent years, because development of internet technology, video conference has become the communicate with each other important tool of information of long-range both sides.Yet, because be subject to the restriction of hardware usefulness and Network Transmission frequency range, so the picture quality of video conference at present is not fine.
Because the data volume of high-resolution data image signal is quite big, so bring sizable burden in transmission and processing, can for computer system and communication network.Therefore; popular at present instant messaging application software (instant messenger) commonly used; as MSN messenger, Yahoo messenger, Skype, Google Talk and iChat etc., it understands the resolution of limited images transmission usually, with the effect that realizes receiving and sending messages immediately.Therefore, described instant messaging application software can't realize high-resolution video conference usually.
Therefore, main purpose of the present invention is to provide a kind of high-resolution video conference system and method, to address the above problem.
Summary of the invention
One object of the present invention is to provide a kind of high-resolution video conference system and method; Its coding module by first terminal device (terminal apparatus) (encoding module) becomes a plurality of compression digital signals (compresseddigital signal) at a plurality of available digital signals of a high-resolution compression standard (high-definition compression standard) lower compression (usable digital signal), and transmits described compression digital signal to the second terminal installation by instant message application software (instant-messagingapplication). Second terminal installation decompresses described compression digital signal obtaining a plurality of picture signals (image signal) by decoding module (decoding module) under this high-resolution compression standard, and shows described picture signal by display module (displayingmodule) .Because the data volume through the described compression digital signal of coding module compression is more much smaller than the data volume of the available digital signal of uncompressed, so can certain degree ground reduce burden in subsequent transmission and the processing.Therefore, by high-resolution video conference system of the present invention and method, even under the restriction of at present general hardware structure and Network Transmission frequency range, also can realize the application of high-resolution video conference.
According to the high-resolution video conference system of a specific embodiment of the present invention, it comprises first terminal installation and second terminal installation.First terminal installation comprises image sensing module (image sensingmodule), picture signal processing module (image signal processing module), coding module and first data processing module (data processing module).Second terminal installation comprises second data processing module, decoding module and display module.
Image sensing module in order to sensing one image to produce a plurality of raw digital signal (raw digitalsignal).The picture signal processing module is coupled to image sensing module, and the picture signal processing module becomes a plurality of available digital signals in order to handle described raw digital signal.Coding module is coupled to the picture signal processing module, and coding module is in order to become a plurality of compression digital signals at the described available digital signal of a high-resolution compression standard lower compression.First data processing module is coupled to coding module.First data processing module is in order to carrying out the first instant message application software, and first data processing module transmits described compression digital signal by the first instant message application software.
Second data processing module is in order to carry out the second instant message application software, and wherein the first instant message application software passes to by the network (network) and the second instant message application software ditch and set up communication connection (communicationlink) under a broadband communications channel (wideband communication channel).Second data processing module receives described compression digital signal by the second instant message application software by this broadband communications channel.Decoding module is coupled to second data processing module, and decoding module in order to the described compression digital signal that under this high-resolution compression standard, decompresses to obtain a plurality of picture signals.Display module is coupled to decoding module, and display module is in order to show described picture signal.
High-resolution video conference method according to a specific embodiment of the present invention comprises the following step.The method at first, is located sensing one image to produce a plurality of raw digital signal in first terminal (terminal).Then, the method is handled described raw digital signal in first end becomes a plurality of available digital signals.Then, the method becomes a plurality of compression digital signals in first end at the described available digital signal of a high-resolution compression standard lower compression.Afterwards, the method is carried out the first instant message application software in first end, and transmits described compression digital signal by the first instant message application software.
Then, the method is carried out the second instant message application software in second end, and wherein the first instant message application software passes to by a network and the second instant message application software ditch and set up the communication connection under the broadband communications channel.Afterwards, the method receives described compression digital signal by the second instant message application software by this broadband communications channel in second end.Then, the method decompresses described compression digital signal to obtain a plurality of picture signals in second end under this high-resolution compression standard.At last, the method shows described picture signal in second end.
Therefore, according to high-resolution video conference system of the present invention and method, its coding module by first terminal installation becomes a plurality of compression digital signals at a plurality of available digital signals of a high-resolution compression standard lower compression, and transmits described compression digital signal to the second terminal installation by the instant message application software.Second terminal installation decompresses described compression digital signal obtaining a plurality of picture signals by a decoding module under this high-resolution compression standard, and shows described picture signal by display module.Because the data volume through the described compression digital signal of coding module compression is more much smaller than the data volume of the available digital signal of uncompressed, so can certain degree ground reduce burden in subsequent transmission and the processing.Therefore, by high-resolution video conference system of the present invention and method, even under limited hardware usefulness and the restriction of Network Transmission frequency range, also can realize the application of high-resolution video conference.
Can be further understood by the following detailed description and accompanying drawings about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 shows the functional block diagram according to the high-resolution video conference system of a specific embodiment of the present invention; And
Fig. 2 shows the flow chart of the high-resolution video conference method of one specific embodiment according to the present invention.
The reference numeral explanation
1: high-resolution video conference system 3: network
5: 10: the first terminal installations of broadband communications channel
102: image sensing module 104: the picture signal processing module
108: the first data processing modules of 106: the first coding modules
120: the second data processing modules of 110: the first instant message application software
122: decoding module 124: display module
130: the second coding modules of 126: the second instant message application software
S10-S24: steps flow chart
Embodiment
The invention provides a kind of high-resolution video conference system and method, its coding module by first terminal installation becomes a plurality of compression digital signals at a plurality of available digital signals of a high-resolution compression standard lower compression, and transmits described compression digital signal to the second terminal installation by the instant message application software.Second terminal installation decompresses described compression digital signal obtaining a plurality of picture signals by a decoding module under this high-resolution compression standard, and shows described picture signal by display module.Because the data volume through the described compression digital signal of coding module compression is more much smaller than the data volume of the available digital signal of uncompressed, so can certain degree ground reduce burden in subsequent transmission and the processing.Therefore, by high-resolution video conference system of the present invention and method, even under limited hardware usefulness and the restriction of Network Transmission frequency range, also can realize the application of high-resolution video conference.
Please refer to Fig. 1, Fig. 1 shows the functional block diagram according to the high-resolution video conference system 1 of a specific embodiment of the present invention.As shown in Figure 1, high-resolution video conference system 1 comprises first terminal installation 10 and second terminal installation 12.First terminal installation 10 comprises camera lens (lens) 100, image sensing module 102, picture signal processing module 104, first coding module 106 and first data processing module 108.Second terminal installation 12 comprises second data processing module 120, decoding module 122 and display module 124.
In one embodiment, first data processing module 108 can be computer (computer), and first coding module 106 is embedded in this computer.In another embodiment, first data processing module 108 can be computer, and camera lens 100, image sensing module 102, picture signal processing module 104 and first coding module 106 can couple the digital imagery/processing unit of computer (digitalimaging/processing device) so far, for example are network camera device (webcam).
Picture signal processing module 104 is coupled to image sensing module 102, and picture signal processing module 104 becomes a plurality of available digital signals in order to handle described raw digital signal.In actual applications, picture signal processing module 104 can be image-signal processor (Image Signal Processor, ISP), but not as limit.
First data processing module 108 is coupled to coding module 106.First data processing module 108 can be in order to carrying out the first instant message application software 110, and first data processing module 108 can transmit described compression digital signal by the first instant message application software 110. Messenger, ICQ, Jabber, Groove or Sun JXTA, but not as limit.
Second data processing module 120 is in order to carry out the second instant message application software 126, wherein the first instant message application software 110 is by network 3, and link up with the second instant message application software 126, connect (communication link) to set up communication for 5 times at broadband communications channel (wideband communication channel). Messenger, ICQ, Jabber, Groove or Sun JXTA, but not as limit.
In actual applications, network 3 can be local area network (LAN) (local area network), Intranet (Intranet), internet (Internet), radio telecommunication network (radio telecommunicationnetwork) or public switched telephone network (public switched telephone network), but not as limit.
In actual applications, the first instant message application software 110 can be passed through network 3 by instant message server (instant-messaging server) (not being presented among Fig. 1), and links up with the second instant message application software 126.For example, if the first instant messaging application software 110 and the second instant message application software 126 all are Microsoft MSN Messenger, and the instant message server is a Microsoft MSN server, and then the first instant messaging application software 110 and the second instant message application software 126 can be set up the communication connection of instant message server therewith by network 3 respectively earlier.Then, the first instant message application software 110 can be passed through this instant message server, and links up with the second instant message application software 126.
In actual applications, the first instant messaging application software 110 and the second instant message application software 126 can have the instant message externally hung software respectively, and this instant message externally hung software connects in order to assist the first instant messaging application software 110 and the second instant message application software 126 to set up this communication for 5 times at the broadband communications channel.It should be noted that broadband communications channel 5 can be in order to transmit the special-purpose broadband communications channel of described compression digital signal.
Second data processing module 120 receives described compression digital signal by the second instant message application software 126 by broadband communications channel 5.Decoding module 122 is coupled to second data processing module 120, and decoding module 122 is in order to the described compression digital signal that decompresses under this high-resolution compression standard, to obtain a plurality of picture signals.Display module 124 is coupled to decoding module 122, and display module 124 is in order to show described picture signal.In actual applications, decoding module 122 can be software or hardware, but not as limit.
In addition, be noted that in another embodiment that first coding module 106 can be the MJPEG encoder, or the MJPEG coder/decoder.Moreover first data processing module 108 comprises second coding module 130, and it can be H.264 encoder or H.264 coder/decoder.In another embodiment, after first coding module 106 receives the available digital signal, can be the MJPEG compression digital signal with the available digital signal encoding according to MJPEG high-resolution compression standard.Be noted that at this data volume can be controlled at for example is in the scope of USB frequency range by the MJPEG compression digital signal is carried out the adjustment of compression ratio, do not cause too many distortion simultaneously.Then, after second coding module 130 receives the MJPEG compression digital signal, can be according to high-resolution compression standard H.264, the MJPEG compression digital signal is separated coding (Transcode) be compression digital signal H.264.Afterwards, first data processing module 108 is by the first instant message application software 110, and H.264 compression digital signal is sent to decoding module 122, and decoding module 122 is under high-resolution compression standard H.264 then, the H.264 compression digital signal that decompresses is to obtain described picture signal.
In actual applications, second terminal installation can also comprise Zoom module (scaling module) 128, and Zoom module 128 is coupled between decoding module 122 and the display module 124, and Zoom module 128 is in order to the described picture signal of convergent-divergent optionally.Then, display module 124 can show by the Zoom module 128 described picture signal of convergent-divergent optionally.
In actual applications, first data processing module 108 also can transmit data by the first instant message application software 110, and second data processing module 120 can pass through the second instant message application software 126, receives this data by network 3.For example, these data can be lteral data or view data, but not as limit.By this, use the user of the first instant message application software 110 and the user who uses the second instant message application software 126 can utilize these data to link up.
In actual applications, first data processing module 108 also can transmit a plurality of audio signals (audio signal) by the first instant message application software 110, and second data processing module 120 can pass through the second instant message application software 126, receives described audio signal by network 3.By this, use the user of the first instant message application software 110 and the user who uses the second instant message application software 126 can utilize described audio signal to carry out the voice communication.
By high-resolution video conference system of the present invention, even the user under the restriction of limited hardware usefulness and Network Transmission frequency range, also can realize the application of high-resolution video conference.
Please refer to Fig. 2, Fig. 2 shows the flow chart of the high-resolution video conference method of one specific embodiment according to the present invention.In this embodiment, first end can dispose first terminal installation 10 as shown in Figure 1, and second end can dispose second terminal installation 12 as shown in Figure 1.As shown in Figure 2, the method is execution in step S10 at first, at the first end sensing, one image, to produce a plurality of raw digital signal.Then, the method execution in step S12, handling described raw digital signal in first end becomes a plurality of available digital signals.Then, the method execution in step S14 becomes a plurality of compression digital signals in this first end at the described available digital signal of a high-resolution compression standard lower compression.In actual applications, this high-resolution compression standard can be H.264 standard, but not as limit.Afterwards, the method execution in step S16 carries out the first instant message application software in first end, and transmits described compression digital signal by this first instant message application software. Messenger, ICQ, Jabber, Groove or Sun JXTA, but not as limit.
Then, the method execution in step S18 carries out the second instant message application software in second end, and wherein the first instant message application software is passed through network, and links up with the second instant message application software, connects to set up communication under the broadband communications channel. Messenger, ICQ, Jabber, Groove or Sun JXTA, but not as limit.In actual applications, this network can be local area network (LAN), Intranet, internet, radio telecommunication network or public switched telephone network, but not as limit.
In actual applications, the first instant message application software can be linked up with the second instant message application software by this network by instant message server (instant-messaging server).For example, if the first instant messaging application software and the second instant message application software all are Microsoft MSN Messenger, and the instant message server is a Microsoft MSN server, and then the first instant messaging application software and the second instant message application software can be set up the communication connection of instant message server therewith by network respectively earlier.Then, the first instant message application software can be linked up with the second instant message application software by the instant message server.
Afterwards, the method execution in step S20 by the second instant message application software, receives described compression digital signal by this broadband communications channel in second end.Then, the method execution in step S22 is at the second end described compression digital signal that decompresses under this high-resolution compression standard, to obtain a plurality of picture signals.At last, the method execution in step S24 shows described picture signal in second end.
In addition, being noted that in another embodiment, at step S14, after first coding module 106 receives the available digital signal, can be the MJPEG compression digital signal with the available digital signal encoding according to MJPEG high-resolution compression standard.Be noted that at this data volume can be controlled at for example is in the scope of USB frequency range by the MJPEG compression digital signal is carried out the adjustment of compression ratio, do not cause too many distortion simultaneously.Moreover, after step S14, further comprise the following step: after second coding module 130 receives the MJPEG compression digital signal, can be according to high-resolution compression standard H.264, the MJPEG compression digital signal is separated coding (Transcode) be compression digital signal H.264.Afterwards, first data processing module 108 is by the first instant message application software 110, and H.264 compression digital signal is sent to decoding module 122, and decoding module 122 is under high-resolution compression standard H.264 then, the H.264 compression digital signal that decompresses is to obtain described picture signal.
In actual applications, this high-resolution video conference method between the step of the step of the described compression digital signal that decompresses and the described picture signal of demonstration, can further comprise the optionally step of the described picture signal of convergent-divergent.
In actual applications, in this first end, data also can transmit by the first instant message application software, and in second end, these data receive by this network by the second instant message application software.For example, these data can be lteral data or view data, but not as limit.By this, use the user of the first instant message application software and the user who uses the second instant message application software can utilize these data to link up.
In actual applications, in first end, audio signal also can transmit by the first instant message application software, and in second end, this audio signal receives by this network by the second instant message application software.By this, use the user of the first instant message application software and the user who uses the second instant message application software can utilize described audio signal to carry out the voice communication.
Compared to prior art, according to high-resolution video conference system of the present invention and method, its coding module by first terminal installation becomes a plurality of compression digital signals at a plurality of available digital signals of a high-resolution compression standard lower compression, and transmits described compression digital signal to the second terminal installation by the instant message application software.Second terminal installation decompresses described compression digital signal obtaining a plurality of picture signals by decoding module under this high-resolution compression standard, and shows described picture signal by display module.Because the data volume through the described compression digital signal of coding module compression is more much smaller than the data volume of the available digital signal of uncompressed, so can certain degree ground reduce burden in subsequent transmission and the processing.Therefore, by high-resolution video conference system of the present invention and method, even under limited hardware usefulness and the restriction of Network Transmission frequency range, also can realize the application of high-resolution video conference.
By the above detailed description of preferred embodiments, hope can be known description feature of the present invention and spirit more, and is not to come scope of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain within the scope that is arranged in claim of the present invention of various changes and tool equality.Therefore, the scope of claim of the present invention should be done the broadest explanation according to above-mentioned explanation, contains the arrangement of all possible change and tool equality to cause it.
Claims (21)
1. high-resolution video conference system comprises:
One first terminal installation comprises:
One image sensing module is in order to sensing one image, to produce a plurality of raw digital signal;
One picture signal processing module is coupled to this image sensing module, and this picture signal processing module becomes a plurality of available digital signals in order to handle described raw digital signal;
One first coding module is coupled to this picture signal processing module, and this first coding module is a plurality of first compression digital signals in order under one first high-resolution compression standard with described available digital Signal Compression; And
One first data processing module is coupled to this coding module, and this first data processing module is in order to carry out one first instant message application software, and this first data processing module also transmits described first compression digital signal by this first instant message application software; And
One second terminal installation comprises:
One second data processing module, in order to carry out one second instant message application software, wherein this first instant message application software is linked up with this second instant message application software by a network, connect under a broadband communications channel, to set up a communication, this second data processing module receives described first compression digital signal by this second instant message application software by this broadband communications channel;
One decoding module is coupled to this second data processing module, and this decoding module is in order to described first compression digital signal that decompresses under this first high-resolution compression standard, to obtain a plurality of picture signals; And
One display module is coupled to this decoding module, and this display module is in order to showing described picture signal,
Wherein, this first data processing module also comprises one second coding module, this second coding module is coupled to this first coding module, this second coding module is in order under one second high-resolution compression standard, with a plurality of second compression digital signals of the described first compression digital signal boil down to, and this first data processing module is by this first instant message application software, described second compression digital signal is sent to this decoding module, this decoding module is in order to described second compression digital signal that decompresses under this second high-resolution compression standard, to obtain described picture signal.
2. high-resolution video conference system as claimed in claim 1, wherein this first high-resolution compression standard is a standard H.264.
3. high-resolution video conference system as claimed in claim 1, wherein this first high-resolution compression standard is a MJPEG standard, and this second high-resolution compression standard is a standard H.264.
4. high-resolution video conference system as claimed in claim 1, wherein this second terminal installation also comprises a Zoom module, be coupled between this decoding module and this display module, this Zoom module is in order to the described picture signal of convergent-divergent optionally, and this display module shows by this Zoom module described picture signal of convergent-divergent optionally.
5. high-resolution video conference system as claimed in claim 1, wherein this network is selected from the one in the group that is made up of a local area network (LAN), an Intranet, an internet, a radio telecommunication network and a public switched telephone network.
6. high-resolution video conference system as claimed in claim 1, wherein this first instant message application software is linked up with this second instant message application software by this network by an instant message server.
7. high-resolution video conference system as claimed in claim 1, wherein this first data processing module also transmits data by this first instant message application software, and this second data processing module receives this data by this second instant message application software by this network.
8. high-resolution video conference system as claimed in claim 1, wherein this first data processing module also transmits a plurality of audio signals by this first instant message application software, and this second data processing module receives described audio signal by this second instant message application software by this network.
One in the group that Messenger, ICQ, Jabber, Groove and Sun JXTA are formed.
10. high-resolution video conference system as claimed in claim 1, wherein this first data processing module is a computer, and this first coding module is embedded in this computer.
11. high-resolution video conference system as claimed in claim 1, wherein this first data processing module is a computer, and this image sensing module, this picture signal processing module and this first coding module are coupled to the one digital imagery/processing unit of this computer.
12. high-resolution video conference system as claimed in claim 1, wherein this decoding module is software or a hardware.
13. a high-resolution video conference method comprises the following step:
In one first end, carry out the following step:
Sensing one image is to produce a plurality of raw digital signal;
Handle described raw digital signal and become a plurality of available digital signals;
Under one first high-resolution compression standard, be a plurality of first compression digital signals with described available digital Signal Compression; And
Carry out one first instant message application software, and transmit described first compression digital signal by this first instant message application software; And
At one second terminal installation place, carry out the following step:
Carry out one second instant message application software, wherein this first instant message application software is linked up with this second instant message application software by a network, connects to set up a communication under a broadband communications channel;
By this second instant message application software, receive described first compression digital signal by this broadband communications channel;
Described first compression digital signal of decompression under this first high-resolution compression standard is to obtain a plurality of picture signals; And
Show described picture signal,
Wherein, under this first high-resolution compression standard, be after the step of a plurality of first compression digital signals with described available digital Signal Compression, further comprise the following step:
Under one second high-resolution compression standard, with a plurality of second compression digital signals of the described first compression digital signal boil down to, afterwards, transmit described second compression digital signal by this first instant message application software, and by this second instant message application software, receive described second compression digital signal by this broadband communications channel, and described second compression digital signal that under this second high-resolution compression standard, decompresses, to obtain described picture signal.
14. high-resolution video conference method as claimed in claim 13, wherein this first high-resolution compression standard is a standard H.264.
15. high-resolution video conference method as claimed in claim 13, wherein this first high-resolution compression standard is a MJPEG standard, and this second high-resolution compression standard is a standard H.264.
16. high-resolution video conference method as claimed in claim 13 between the step of the step of described first compression digital signal that decompresses and the described picture signal of demonstration, further comprises the following step:
The described picture signal of convergent-divergent optionally.
17. high-resolution video conference method as claimed in claim 13, wherein this network is selected from the one in the group that is made up of a local area network (LAN), an Intranet, an internet, a radio telecommunication network and a public switched telephone network.
18. high-resolution video conference method as claimed in claim 13, wherein this first instant message application software is linked up with this second instant message application software by this network by an instant message server.
19. high-resolution video conference method as claimed in claim 13, in this first end, one data also transmit by this first instant message application software, and in this second end, these data receive by this network by this second instant message application software.
20. high-resolution video conference method as claimed in claim 13, in this first end, one audio signal also transmits by this first instant message application software, and in this second end, this audio signal receives by this network by this second instant message application software.
One in the group that Messenger, ICQ, Jabber, Groove and Sun JXTA are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101271640A CN101340545B (en) | 2007-07-04 | 2007-07-04 | High-resolution video conference system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101271640A CN101340545B (en) | 2007-07-04 | 2007-07-04 | High-resolution video conference system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101340545A CN101340545A (en) | 2009-01-07 |
| CN101340545B true CN101340545B (en) | 2010-07-07 |
Family
ID=40214479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101271640A Active CN101340545B (en) | 2007-07-04 | 2007-07-04 | High-resolution video conference system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101340545B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055912B (en) * | 2009-10-29 | 2014-10-29 | 北京中星微电子有限公司 | Video application system, video special effect processing system and method |
| US8880412B2 (en) * | 2011-12-13 | 2014-11-04 | Futurewei Technologies, Inc. | Method to select active channels in audio mixing for multi-party teleconferencing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605711Y (en) * | 2003-01-22 | 2004-03-03 | 张健 | Video signal terminal device |
| CN1595951A (en) * | 2003-09-12 | 2005-03-16 | 广东融合通信有限责任公司 | An information directory service system having realtime online communication function and construction method thereof |
| CN1770857A (en) * | 2004-10-27 | 2006-05-10 | 梁松 | Interactive voice video conference system based on multi communication platform |
| CN1972431A (en) * | 2006-12-14 | 2007-05-30 | 北京中星微电子有限公司 | A video conference image processing system |
-
2007
- 2007-07-04 CN CN2007101271640A patent/CN101340545B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605711Y (en) * | 2003-01-22 | 2004-03-03 | 张健 | Video signal terminal device |
| CN1595951A (en) * | 2003-09-12 | 2005-03-16 | 广东融合通信有限责任公司 | An information directory service system having realtime online communication function and construction method thereof |
| CN1770857A (en) * | 2004-10-27 | 2006-05-10 | 梁松 | Interactive voice video conference system based on multi communication platform |
| CN1972431A (en) * | 2006-12-14 | 2007-05-30 | 北京中星微电子有限公司 | A video conference image processing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101340545A (en) | 2009-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7710450B2 (en) | System and method for dynamic control of image capture in a video conference system | |
| EP1876521A2 (en) | Apparatus and method for sharing video telephony screen in mobile communication terminal | |
| WO2010037310A1 (en) | Communication method and system of multi-path videos | |
| US20050151835A1 (en) | Method and apparatus of transferring the desktop of PC to video communication terminal | |
| JP4331049B2 (en) | Data transmission apparatus and data transmission method | |
| US8120639B2 (en) | High-definition video conference system and method | |
| US20100149304A1 (en) | Image Capturing Device and Image Delivery Method | |
| TWI381733B (en) | High definition video conference system | |
| CN101340545B (en) | High-resolution video conference system and method | |
| US20070120949A1 (en) | Video, sound, and voice over IP integration system | |
| US7542067B2 (en) | System of using digital frames in an idle web video conferencing device | |
| US8125511B2 (en) | Three-party video conference system and method | |
| CN101340547B (en) | 3 side video conference system | |
| CN101340546A (en) | High-resolution video conference system | |
| JP2010263326A (en) | Communication system | |
| EP0096220A2 (en) | Gray scale image thresholding method | |
| US8208555B2 (en) | Image capturing and transmission device and image receiving and reconstruction device | |
| KR20020015219A (en) | Apparatus and method for video transmission in video conferencing system | |
| JP2005168012A (en) | Video phone compatible type internet phone | |
| US20100002068A1 (en) | Communication terminal and method for performing video telephony | |
| US5854892A (en) | Video conferencing decoder engine with direct signaling to encoder engine for relaying of decoded data | |
| EP1374579A1 (en) | High resolution graphics side channel in video conference | |
| JP2005229463A (en) | Image resolution switching transmitter | |
| JPH0846928A (en) | Picture encoding pre-processor | |
| JP2007043227A (en) | Communication apparatus and communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |