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Transmission control protocol and method for sharing channel by paths of real-time multimedia streams

A technology of transmission control protocol and stream transmission control, which is applied in the direction of simultaneous/sequential multi-TV signal transmission, transmission system, pulse modulation TV signal transmission, etc., and can solve problems such as transmission methods that do not include voice

Inactive Publication Date: 2011-06-22
陈红
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  • Description
  • Claims
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Problems solved by technology

[0011] What is described above is the transmission method of real-time images, and does not include the transmission method of voice, such as composite video signal (CVBS), VGA, DVI and other transmission channels can only transmit real-time images

Method used

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  • Transmission control protocol and method for sharing channel by paths of real-time multimedia streams
  • Transmission control protocol and method for sharing channel by paths of real-time multimedia streams
  • Transmission control protocol and method for sharing channel by paths of real-time multimedia streams

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Embodiment Construction

[0082] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0083] Figure 10 It is a transmission scheme in which multiple real-time multimedia streams use several shared transmission channels. The left side is the collection and sending end of multiple real-time images and real-time voice, and the right side is the receiving and output end of multiple real-time images and real-time voice.

[0084] Figure 10 Inside the dotted line box shown in (1007) is a real-time image and real-time voice acquisition and processing unit, and two signals (1005) and (1006) connected to each unit respectively identify the real-time image input signal and the real-time voice input signal , (1001) in the processing unit represents the acquisition and processing logic circuit of real-time image and real-time voice, under the control of the acquisition and processing logic circuit (1001), the control parameters o...

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Abstract

The invention discloses a communication control protocol and a method for simultaneously transmitting a plurality of paths of real-time multimedia data streams by utilizing an identical high speed digital channel. Conventional transmission channels such as signal wires for composite video broadcast signals (CVBS), S-Video, serial digital interfaces (SDI), video graphics arrays, digital visual interfaces and the like all adopt the method for transmitting images in a point-by-point scanning way under the control of horizontal synchronization and field synchronization. In the communication control protocol and the method, a transmitter acquires mode control parameters such as the information of point frequency, horizontal synchronization, field synchronization, voice sampling frequency and the like required by real-time image and real-time voice playback, packages the mode control parameters into a control information packet, packages image data and voice data into an image data packet and a voice data packet respectively, adds media stream identifiers to the three data packets, and transmits the data packets to a receiver by the same digital channel. The receiver can recover the plurality of paths of real-time media streams from the three data packets according to an original mode or a new given mode, thereby realizing the simultaneous transmission of a plurality of paths of real-time images or real-time voices in the same digital transmission channel.

Description

technical field [0001] The invention relates to a digital transmission control protocol, in particular to a transmission control protocol and method for simultaneously transmitting multiple real-time multimedia data streams using the same high-speed digital channel. Background technique [0002] Real-time multimedia streaming refers to multimedia signals such as TV video images, computer real-time display images, and real-time audio. [0003] The transmission channel refers to the transmission channel of real-time multimedia signals. The common transmission channels of real-time video images include composite video (CVBS), S-Video, YPbPr, HDMI, SD-SDI, HD-SDI and other signal connection cables, and computer real-time images. Transmission channels mainly include VGA, DVI, DisplayPort and other signal lines. The basic working principle of these transmission channels is to transmit the image stream frame by frame under the control of field synchronization and line synchronizat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04N7/24H04N7/08
Inventor 陈红
Owner 陈红
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