CN101521789A - Video telephone, system and method for realizing word message sending function during video communication. - Google Patents
Video telephone, system and method for realizing word message sending function during video communication. Download PDFInfo
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- CN101521789A CN101521789A CN200910106314A CN200910106314A CN101521789A CN 101521789 A CN101521789 A CN 101521789A CN 200910106314 A CN200910106314 A CN 200910106314A CN 200910106314 A CN200910106314 A CN 200910106314A CN 101521789 A CN101521789 A CN 101521789A
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Abstract
The invention discloses a video telephone, a system and a method for realizing a word message sending function during video communication. The video telephone comprises a word message processing unit, a video input unit, a video code stream synthesis unit, a video coding unit and a modem unit, wherein the video input unit is used for collecting video data of a sending terminal user, the word message processing unit is used for inputting word messages to be sent and transforming the word messages to video data of a video format adopted by the video input unit, the video code stream synthesis unit is used for processing video data output by the video input unit and video data output by the word message processing unit in a superposed way so as to form new mixed video data with word messages, and the video coding unit is used for coding the new mixed video data with word messages and transmitting the new mixed video data with word messages to a receiving terminal by the modem unit. The invention can meet the requirement of realizing word input during the video communication.
Description
Technical field
The present invention relates to the video telephone communication field, relate in particular to a kind of video telephone, system and method for during video call, realizing word message sending function.
Background technology
Video telephone is a kind of multimedia communications system that integrates Voice ﹠ Video, development along with the third generation (3G) mobile communication technology, people no longer are satisfied with common voice call service, and the video telephone that image and sound combine is used by increasing people.
Figure 1 shows that existing video telephone sending end structure schematic diagram.As shown in the figure, the audio frequency and video input unit carries out encoding compression with the data that collect by coding unit, is sent to the other side by modulator-demodulator after the audio, video data after multiplexed unit (h.223 multiplexed unit) will encode is done multiplexing process.
Figure 2 shows that existing video telephone receiving terminal structural representation.As shown in the figure, behind the audio, video data that receives the opposite end transmission from network, demultiplexing unit (h.223 demultiplexing unit) is done demultiplexing with the audio, video data that receives and is handled, respectively audio, video data is done decoding processing by decoding unit then, and decoded audio, video data is exported by the audio frequency and video output unit.
Video telephone sends to the other side with image and the voice data of gathering, and can give the sensation of face-to-face dialogue in conversation.
However, if the user needs to send Word message to the other user, then can only send to the other user by the mode of short message during video call, can not be in conversation real-time transmission Word message is to the other user, inconvenient user's use.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of video telephone, system and method for during video call, realizing word message sending function.
A kind of video telephone, comprise a Word message processing unit, one video input unit, one video code flow synthesis unit, one video encoding unit and a modulator-demod, wherein said video input unit is used to gather transmitting terminal user's video data, described Word message processing unit is used to import the Word message that will send and is the video data of the video format that adopted of described video input unit with this literal information translation, described video code flow synthesis unit is used for the video data of the video data of the described video input unit of overlap-add procedure output and the output of described Word message processing unit and forms the new mixed video data that have Word message, described video encoding unit be used to encode described mixed video data and send receiving terminal to by described modulator-demod.
Further, in above-mentioned video telephone, described Word message processing unit comprises a literal input unit, a character graph unit and an image conversion unit, wherein said literal input unit is used to import the described Word message that will send, it is bitmap image data that described character graph unit is used to change the described Word message that will send, and described image conversion unit is used to change the video data that described bitmap image data is the video format that adopted of described video input unit.
Further, in above-mentioned video telephone, described video telephone transmitting terminal also comprises an audio frequency input unit, an audio coding unit and a multiplexed unit, wherein said audio frequency input unit is used to gather transmitting terminal user's voice data, the described audio coding unit described voice data that is used to encode, described multiplexed unit is used for described voice data of multiplexing process and described mixed video data and sends described modulator-demod to.
A kind of video-phone system, comprise a video telephone transmitting terminal and a video telephone receiving terminal, described video telephone transmitting terminal comprises a Word message processing unit, one video input unit, one video code flow synthesis unit, one video encoding unit and one first modulator-demod, described video telephone receiving terminal comprises a second modem, one video decoding unit and a video output unit, wherein said video input unit is used to gather transmitting terminal user's video data, described Word message processing unit is used to import the Word message that will send and is the video data of the video format that adopted of described video input unit with this literal information translation, described video code flow synthesis unit, be used for the video data of the video data of the described video input unit of overlap-add procedure output and the output of described Word message processing unit and form the new mixed video data that have Word message, described video encoding unit, described mixed video data are used to encode, described first modulator-demod, be used to modulate the mixed video data behind the described coding, described second modem unit, be used for the mixed video data behind the described coding of demodulation, described video decoding unit, be used to decode after the unit demodulation of described second modem the mixed video data and send described video output unit to, described video output unit is used to show decoded mixed video.
Further, in above-mentioned video-phone system, described Word message processing unit comprises a literal input unit, a character graph unit and an image conversion unit, wherein said literal input unit is used to import the described Word message that will send, it is bitmap image data that described character graph unit is used to change the described Word message that will send, and described image conversion unit is used to change the video data that described bitmap image data is the video format that adopted of described video input unit.
Further, in above-mentioned video-phone system, described video telephone transmitting terminal also comprises an audio frequency input unit, one audio coding unit and one first multiplexed unit, described video telephone receiving terminal comprises an audio decoding unit, one audio output unit and one second multiplexed unit, wherein said audio frequency input unit, be used to gather transmitting terminal user's voice data, the described audio coding unit described voice data that is used to encode, the described first multiplexed unit, be used for described voice data of multiplexing process and described mixed video data and send described first modulator-demod to, the described second multiplexed unit is used for demultiplexing to be handled voice data and the mixed video data after the unit demodulation of described second modem and transmits and send described audio decoding unit and described video decoding unit respectively to, described audio decoding unit, the described voice data that is used to decode, described audio output unit are used for output through the decoded audio frequency of described audio decoding unit.
A kind of method that realizes the literal sending function when conversation on video telephone comprises:
A: the Word message that the user will send by the transmitting terminal input, it is video data that described transmitting terminal is changed described Word message;
B: the video data of the described conversion of transmitting terminal overlap-add procedure with generate the mixed video data that have Word message from the video data of transmitting terminal collection;
C: encode described mixed video data and send to receiving terminal of transmitting terminal;
D: the decode video of described mixed video data and display text information and described collection of receiving terminal.
Further, in said method, in step a, described transmitting terminal is changed in the process that described Word message is a video data, the described transmitting terminal described Word message that will send of conversion earlier is a bitmap image data, more described bitmap image data is converted to video data.
Further, in said method, in step c, before sending to receiving terminal, the mixed video data behind the coding are carried out modulation treatment by a modulator-demod.
Further, in said method, after receiving terminal receives described video data, carry out demodulation process by a modulator-demod.
Compared to prior art, the present invention has increased the Word message processing capacity, thereby realizes word message sending function by Word message is converted into during the video data transmission is implemented in video call.The present invention can satisfy the user realizes the literal input when video call requirement.
Description of drawings
Fig. 1 is the structural representation of existing video telephone transmitting terminal.
Fig. 2 is the structural representation of existing video telephone receiving terminal.
Fig. 3 is the structural representation of the video telephone transmitting terminal of the video-phone system of preferred embodiment of the present invention with word message sending function.
Fig. 4 is the detailed structure schematic diagram of the Word message processing unit among Fig. 3.
Fig. 5 is preferred embodiment video-phone system of the present invention realizes word message sending function during video call a flow chart.
Embodiment
The embodiment of the invention utilizes existing video telephone technology and unit to realize sending to the opposite end function of Word message during video call.The transmission of Word message and existing video telephone technology and unit compatibility.And the transmission of Word message can not influence normal calling course of video telephone yet, and video call still can normally carry out during Word message sent.
Below with reference to accompanying drawing in detail the specific embodiment of the present invention is described in detail.
Present embodiment utilization existing video telephone structural model as depicted in figs. 1 and 2, and on the basis of existing video telephone structural model, increased the function that Word message sends.
See also Fig. 3, preferred embodiment video-phone system of the present invention comprises a video telephone transmitting terminal 10, described video telephone transmitting terminal 10 is arranged in a video telephone, described video telephone transmitting terminal 10 comprises a Word message processing unit 11, a video input unit 12, an audio frequency input unit 13, a video code flow synthesis unit 14, a video encoding unit 15, an audio coding unit 16, one multiplexed unit 17 and a modulator-demod 18, in the present embodiment, described multiplexed unit 17 is multiplexed unit H.223.Described Word message processing unit 11 is connected described video code flow synthesis unit 14 with described video processing unit 12, described video code flow synthesis unit 14 connects multiplexed unit 17 by video encoding unit 15, described audio frequency input unit 13 connects described multiplexed unit 17 by described audio coding unit 16, described multiplexed unit 17 connects described modulator-demod 18, and described modulator-demod 18 connections one are used to transmit the network 20 of signal.
See also Fig. 3 and Fig. 4, described Word message processing unit 11 comprises a literal input unit 111, a character graph unit 112 and an image conversion unit 113.Described literal input unit 111 is used to import the Word message that will send, and it uses user terminal existing input method and input unit; Described character graph unit 112 is used for the Word message that the user imports from described literal input unit 111 is converted to bitmap image data; Described image conversion unit 113 be used for the bitmap image data by character graph unit 112 output convert to the video format of being gathered from described video input unit 12 consistent video data; Described video code flow synthesis unit 14 is used for carrying out overlap-add procedure and forming the new mixed video data that have Word message the video data of image conversion unit 113 outputs with from the video data that video input unit 12 is exported.
Described multiplexed unit 17 is used for described voice data of multiplexing process and described mixed video data and sends described first modulator-demod to; Described audio frequency input unit 13 is used to gather transmitting terminal user's voice data; The described audio coding unit 16 described voice data that is used to encode; Described modulator-demod 18 is used to modulate mixed video data and the voice data behind the described coding; The described video encoding unit 15 described mixed video data that are used to encode.
Video-phone system of the present invention also comprises a video telephone receiving terminal, the structure of described video telephone receiving terminal is the same with the structure of the phonovision receiving terminal shown in Fig. 2, described video telephone receiving terminal is arranged in another video telephone, and described video telephone receiving terminal comprises that one is used to connect modulator-demod, a demultiplexing unit, a video decoding unit, an audio decoding unit, a video output unit and an audio output unit of network.Described modulator-demod is used for mixed video data and the voice data behind the described coding of demodulation, described video decoding unit be used to decode after the described modulator-demod demodulation the mixed video data and send described video output unit to, described video output unit is used to show decoded mixed video, described multiplexed unit is used for demultiplexing to be handled voice data and the mixed video data after described modulator-demod demodulation and transmits and send described audio decoding unit and described video decoding unit respectively to, the described audio decoding unit described voice data that is used to decode, described audio output unit is used for output through the decoded audio frequency of described audio decoding unit.
Figure 5 shows that the flow chart of during video call, realizing word message sending function, realize the concrete steps of word message sending function below in conjunction with flowchart text the present invention.
Step S501, the user imports the Word message and the request that will send by the literal input unit 111 of described transmitting terminal 10 and sends, and wherein the input of Word message can utilize the input unit and the input method of existing terminal to finish.
Step S502, described character graph unit 112 converts the Word message of user's input among the step S501 to bitmap image data.Character graph unit 112 receives the Word message of user's input, and constructs the corresponding bitmap image data of Word message by software program.For long Word message can be shown by split screen, the character graph unit can be according to the length of Word message, constructs the secondary bitmap images of N (N 〉=1), and Word message is cut apart to be included in the different bitmap images.
Step S503, described image conversion unit 113 converts the secondary bitmap image data of the N that obtained by step S502 (N 〉=1) to the video data of N (N 〉=1) frame yuv format.The process that bitmap image data is converted to the yuv format video data also can be realized by software program.Handle for the ease of image is synthetic, the yuv format video data in this step after the conversion should have consistent Format Type with the video data of being gathered from terminal video input unit.
Step S504, described video code flow synthesis unit 14 after conversion among the step S503 N (N 〉=1) frame video data and the video data of gathering from video input unit 15 carry out overlap-add procedure.The image synthesis unit receives the input of image conversion unit and video input unit, and by software program the two-way input video is mixed overlap-add procedure, the new video data that has Word message of output after the mixing overlap-add procedure.Especially, in new mixed video, the video that is converted to by Word message is transparent to be presented on the video of being gathered from the video input unit, and it may be displayed on the top or the bottom of the video that the video input unit gathered.
Step S505, described video encoding unit 15 is sent to receiving terminal by described modulator-demodulator 18 after the mixed video digital coding that has Word message of step S504 output, and coding is consistent with normal visible telephone relation video coding and process of transmitting with process of transmitting.
After the mixed video data that have Word message distributed and finish, transmitting terminal can be proceeded normal video call or receive new Word message to send request, and so far, the process of transmitting of Word message finishes.
In the above-described embodiments, after Word message receiving terminal terminal receives the video data that is mixed with Word message, according to normal video telephone reception handling process as shown in Figure 2, the Word message that transmitting terminal sends promptly is displayed in the call interface of receiving terminal terminal.
The above only is a preferred implementation of the present invention; but those skilled in the art is to be understood that; in the case of without departing from the principles of the present invention; can make modification on any form or the details, improvement etc. to it; but any form of being made or the modification on the details, improvement etc. all are included within protection scope of the present invention.
Claims (10)
1. a video telephone comprises a Word message processing unit, a video input unit, a video code flow synthesis unit, a video encoding unit and a modulator-demod, wherein:
Described video input unit is used to gather transmitting terminal user's video data;
Described Word message processing unit is used to import the Word message that will send and is the video data of the video format that adopted of described video input unit with this literal information translation;
Described video code flow synthesis unit is used for the video data of the video data of the described video input unit of overlap-add procedure output and the output of described Word message processing unit and forms the new mixed video data that have Word message;
Described video encoding unit, described mixed video data and send receiving terminal to by described modulator-demod are used to encode.
2. video telephone as claimed in claim 1 is characterized in that: described Word message processing unit comprises a literal input unit, a character graph unit and an image conversion unit, wherein:
Described literal input unit is used to import the described Word message that will send;
Described character graph unit, being used to change the described Word message that will send is bitmap image data;
Described image conversion unit is used to change described bitmap image data and is the video data of the video format that described video input unit adopted.
3. video telephone as claimed in claim 1 is characterized in that: described video telephone transmitting terminal also comprises an audio frequency input unit, an audio coding unit and a multiplexed unit, wherein:
Described audio frequency input unit is used to gather transmitting terminal user's voice data;
Described audio coding unit, described voice data is used to encode;
Described multiplexed unit is used for described voice data of multiplexing process and described mixed video data and sends described modulator-demod to.
4. video-phone system, comprise a video telephone transmitting terminal and a video telephone receiving terminal, described video telephone transmitting terminal comprises a Word message processing unit, a video input unit, a video code flow synthesis unit, a video encoding unit and one first modulator-demod, described video telephone receiving terminal comprises a second modem, a video decoding unit and a video output unit, wherein:
Described video input unit is used to gather transmitting terminal user's video data;
Described Word message processing unit is used to import the Word message that will send and is the video data of the video format that adopted of described video input unit with this literal information translation;
Described video code flow synthesis unit is used for the video data of the video data of the described video input unit of overlap-add procedure output and the output of described Word message processing unit and forms the new mixed video data that have Word message;
Described video encoding unit, described mixed video data are used to encode;
Described first modulator-demod is used to modulate the mixed video data behind the described coding;
Described second modem unit is used for the mixed video data behind the described coding of demodulation;
Described video decoding unit, the mixed video data after the described second modem unit demodulation that is used to decode also send described video output unit to;
Described video output unit is used to show decoded mixed video.
5. video-phone system as claimed in claim 4 is characterized in that: described Word message processing unit comprises a literal input unit, a character graph unit and an image conversion unit, wherein:
Described literal input unit is used to import the described Word message that will send;
Described character graph unit, being used to change the described Word message that will send is bitmap image data;
Described image conversion unit is used to change described bitmap image data and is the video data of the video format that described video input unit adopted.
6. video-phone system as claimed in claim 4, it is characterized in that: described video telephone transmitting terminal also comprises an audio frequency input unit, an audio coding unit and one first multiplexed unit, described video telephone receiving terminal comprises an audio decoding unit, an audio output unit and one second multiplexed unit, wherein:
Described audio frequency input unit is used to gather transmitting terminal user's voice data;
Described audio coding unit, described voice data is used to encode;
The described first multiplexed unit is used for described voice data of multiplexing process and described mixed video data and sends described first modulator-demod to;
The described second multiplexed unit is used for demultiplexing and handles voice data and the mixed video data after the unit demodulation of described second modem and transmit and send described audio decoding unit and described video decoding unit respectively to;
Described audio decoding unit, described voice data is used to decode;
Described audio output unit is used for output through the decoded audio frequency of described audio decoding unit.
7. method that realizes the literal sending function when conversation on video telephone comprises:
A: the Word message that the user will send by the transmitting terminal input, it is video data that described transmitting terminal is changed described Word message;
B: the video data of the described conversion of transmitting terminal overlap-add procedure with generate the mixed video data that have Word message from the video data of transmitting terminal collection;
C: encode described mixed video data and send to receiving terminal of transmitting terminal.
8. the method that when conversation on video telephone, realizes the literal sending function as claimed in claim 7, it is characterized in that: in step a, described transmitting terminal is changed in the process that described Word message is a video data, the described transmitting terminal described Word message that will send of conversion earlier is a bitmap image data, more described bitmap image data is converted to video data.
9. the method that realizes the literal sending function when conversation on video telephone as claimed in claim 8, it is characterized in that: in step c, before sending to receiving terminal, the mixed video data behind the coding are carried out modulation treatment by a modulator-demod.
10. the method that realizes the literal sending function when conversation on video telephone as claimed in claim 9 is characterized in that: after receiving terminal receives described video data, carry out demodulation process by a modulator-demod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910106314A CN101521789A (en) | 2009-03-20 | 2009-03-20 | Video telephone, system and method for realizing word message sending function during video communication. |
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| CN200910106314A CN101521789A (en) | 2009-03-20 | 2009-03-20 | Video telephone, system and method for realizing word message sending function during video communication. |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148844A1 (en) * | 2009-06-24 | 2010-12-29 | 中兴通讯股份有限公司 | Mobile communication terminal and video call method |
| CN102780879A (en) * | 2011-05-13 | 2012-11-14 | 惠州市惠阳区美思奇实业发展有限公司 | 3G (third generation) video telephone |
| CN105338290A (en) * | 2014-06-10 | 2016-02-17 | 杭州海康威视数字技术股份有限公司 | Code stream synthetic method and apparatus |
| CN108124115A (en) * | 2016-11-29 | 2018-06-05 | 联芯科技有限公司 | The method and terminal device of data are transmitted in video calling |
| CN109743635A (en) * | 2018-11-08 | 2019-05-10 | 北京微播视界科技有限公司 | Comment on answering method, device, equipment and storage medium |
-
2009
- 2009-03-20 CN CN200910106314A patent/CN101521789A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148844A1 (en) * | 2009-06-24 | 2010-12-29 | 中兴通讯股份有限公司 | Mobile communication terminal and video call method |
| CN102780879A (en) * | 2011-05-13 | 2012-11-14 | 惠州市惠阳区美思奇实业发展有限公司 | 3G (third generation) video telephone |
| CN102780879B (en) * | 2011-05-13 | 2014-12-17 | 惠州市惠阳区美思奇实业发展有限公司 | 3G (third generation) video telephone |
| CN105338290A (en) * | 2014-06-10 | 2016-02-17 | 杭州海康威视数字技术股份有限公司 | Code stream synthetic method and apparatus |
| CN105338290B (en) * | 2014-06-10 | 2019-04-12 | 杭州海康威视数字技术股份有限公司 | The synthetic method and device of code stream |
| CN108124115A (en) * | 2016-11-29 | 2018-06-05 | 联芯科技有限公司 | The method and terminal device of data are transmitted in video calling |
| CN109743635A (en) * | 2018-11-08 | 2019-05-10 | 北京微播视界科技有限公司 | Comment on answering method, device, equipment and storage medium |
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