KR20070102224A - United multimedia processor and method for unitedly processing multimedia signal - Google Patents

Abstract

An integrated multimedia processor and a method for integratedly processing a multimedia signal are provided to process various multimedia input signals adaptively by designing a multimedia processor for portable devices or electronic appliances using one intergrated hardware unit. A TS(Transport Stream) interface unit(102) receives a multimedia signal, which is inputted from an external multimedia reproducing device for receiving various broadcasting sources. An MPEG2 de-multiplex unit(104) de-multiplexes MPEG2-TS and satellite/terrestrial DMB-TSs. An MPEG4 synchronization unit(108) performs the synchronization for MPEG4 parsing after MPEG2 parsing of the terrestrial DMB-TS. A video controller(110) decodes the de-multiplexed video packet by the satellite/terrestrial DMB-TSs and DTV(Digital TV)-TS. A DSP(Digital Signal Processing) unit(114) processes a multimedia video packet unprocessed by the video controller, and decodes an audio packet of satellite/terrestrial DMB and DTV according to rules of data format. A graphic processing unit(122) displays video signals and multimedia video signals of satellite/terrestrial DMB and DTV decoded by the video controller and the DSP unit. A main controller(106) controls the operations of respective parts of an integrated multimedia processor, thereby performing adaptive process on various multimedia signals.

Description

Integrated multimedia processor and integrated signal processing method {UNITED MULTIMEDIA PROCESSOR AND METHOD FOR UNITEDLY PROCESSING MULTIMEDIA SIGNAL}

1 is a block diagram of an integrated multimedia processor according to an embodiment of the present invention;

2 is a flowchart illustrating integrated multimedia signal processing in an integrated multimedia processor according to an embodiment of the present invention;

3 is an exemplary operation diagram of each integrated multimedia processor for satellite DMB signal processing according to an embodiment of the present invention;

4 is an exemplary operation diagram of each integrated multimedia processor for terrestrial DMB signal processing according to an embodiment of the present invention;

5 is an exemplary operation of each integrated multimedia processor for the DTV signal processing according to an embodiment of the present invention.

<Brief description of the major symbols in the drawings>

102: TS stream interface unit 104: MPEG2 demux unit

106: main controller 108: MPEG4 synchronizer

110: A / V control unit 112: video control unit

114: DSP unit 116: H.264 H / W engine

118: MPEG2 H / W engine 120: Audio output

122: graphics processor 124: memory controller

126: main register 130: LCD

132: SDRAM

The present invention relates to a multimedia processor, and more particularly, to a multimedia integrated processor and a method thereof capable of integrally processing various multimedia signals.

Conventional processor chips, which are generally manufactured in the system on chip (SOC) industry, have some limitations in their versatility, and chip design does not keep up with the speed of the rapidly developing technology. To this end, the conventional SOC industry is responding to rapidly developing technologies through chip design through IP recycling.

Therefore, it is possible to play DVD disc, receive digital TV, receive terrestrial DMB, satellite DMB by utilizing the chip design technology through IP recycling as described above, and can perform coding for multimedia data such as DivX produced by users. If it is designed as one integrated hardware and implements adaptive processing for various multimedia input signals in one integrated multimedia processor as described above, it is expected to broaden the generalization and application of the chip.

In addition, such an integrated processor can be easily manufactured by the module maker for its purpose, and semiconductor producers are expected to have a great effect in terms of marketing since the useful range becomes very wide.

Accordingly, an object of the present invention is to design a multimedia processor for a portable device or a home appliance as a single piece of hardware to implement adaptive processing for various multimedia input signals, thereby increasing the generalization and application of the chip. The present invention provides a multimedia integrated processor and method for enabling the same.

The present invention for achieving the above object is an integrated multimedia processor, a TS stream interface unit for receiving a multimedia signal input from an external multimedia playback apparatus of TS stream received from various broadcast sources, MPEG2 TS stream and satellite / terrestrial DMB An MPEG2 demux unit for demuxing a TS stream, an MPEG4 synchronization unit for synchronizing MPEG4 parsing after MPEG2 parsing of the terrestrial DMB TS, and a video packet demuxed in the DTV and satellite / terrestrial DMB TS streams A video controller for controlling decoding according to MPEG2 / MPEG4 and H.264 standards, and a satellite / terrestrial / DTV and other multimedia video packets that cannot be processed by the video controller are processed, and the audio packets of the satellite / terrestrial / DTV are applied. DSP that decodes according to the standard of the data format, and decodes the audio signal decoded from the DSP. An audio output unit for outputting through a beaker, a graphic processor for graphicly processing and displaying a satellite / terrestrial / DTV video signal and a multimedia video signal applied from the video control unit and the DSP unit on a monitor, and operation of each integrated multimedia processor It is characterized in that it comprises a main control unit for performing adaptive processing on a variety of multimedia signals by controlling the.

The present invention also provides a method for processing a multimedia signal in an integrated multimedia processor, comprising the steps of: (a) receiving a TS stream received from various broadcast sources and an multimedia signal input from an external multimedia player, and (b) receiving the TS stream. After demuxing, determining the type of the TS stream, (c) video / audio decoding the satellite / terrestrial / DTV packet from the TS stream according to a standard corresponding to each broadcast signal; d) when the multimedia signal is input, video / audio decoding through the DSP; and (e) displaying the decoded video / audio signal of the satellite / terrestrial / DTV packet and the multimedia signal on a screen. Characterized in that.

Hereinafter, with reference to the accompanying drawings will be described in detail the operation of the preferred embodiment according to the present invention.

1 illustrates a detailed block configuration of an integrated multimedia processor according to an embodiment of the present invention. The integrated multimedia processor of the present invention utilizes each part of an existing multimedia processor to maximize DVD disc playback, digital TV reception, and terrestrial broadcasting. It is possible to receive wave DMB and satellite DMB, and to integrate multimedia data such as DivX produced by the user. Therefore, the integrated processor of the present invention can be manufactured by the module manufacturer to suit their purpose.

Hereinafter, an operation of each part of the integrated multimedia processor 100 of the present invention will be described in detail with reference to FIG. 1.

First, the TS stream interface 102 receives a multimedia signal input from a TS stream external multimedia playback device received from various broadcast sources.

The MPEG2 demux unit 104 demuxes the MPEG2 TS stream and the TS stream of the satellite / terrestrial DMB. The MPEG4 synchronizer 108 performs synchronization for MPEG4 parsing after the MPEG2 parsing of the terrestrial DMB TS.

The video controller 112 includes an H.264 hardware engine 116 and an MPEG2 hardware engine 118 to decode video packets demuxed in the DTV, satellite / terrestrial DMB TS streams. Control to decode according to 264 standard. That is, the video controller 112 controls the stream for MPEG2 / MPEG4 Part 10 H.264, which is typically hardwired, and transmits DVD, DivX, etc. to the DSP unit 114.

The DSP (digital signal processing) unit 114 processes satellite / terrestrial / DTV and other multimedia video packets that cannot be processed by the video controller 112, and processes the audio packets of the satellite / terrestrial / DTV according to the corresponding data format. Decode according to That is, the DSP unit 114 reduces the amount of processing processed by the main CPU 106. In the present invention, the DSP is designed to mainly process the audio portion, and the video is implemented in the video controller 112. Processing is performed on non-universal parts that hardware engines 116 and 118 cannot handle.

The A / V control unit 110 controls the processing for audio / video. The audio output unit 120 converts the audio signal decoded from the DSP unit 114 into I2s and SPDIF formats and outputs the audio signal through the speaker 128.

The graphic processor (LCD control) 122 converts the Y, Cb, Cr signals of the satellite / terrestrial wave / DTV video signal and the multimedia video signal applied from the video control unit 112 and the DSP unit 114 in the form of RGB The display is performed on a monitor such as an LCD 130.

The memory control unit 124 performs control of the memory for the SDRAM 132. The main control register 126 stores setting values of each part of the integrated multimedia processor 100.

The main control unit 106 controls the operation of each unit of the integrated multimedia processor 100 to perform adaptive processing on various multimedia signals, such as satellite / terrestrial DMB signal and DTV signal, DVD, DivX, etc. from an external playback device. Allows integrated processing of multimedia signals.

FIG. 2 illustrates an integrated processing flow for various multimedia signals such as DVD and DivX inputted from a satellite / terrestrial DMB packet, a DTV packet, and an external multimedia player in the integrated multimedia processor according to an embodiment of the present invention. Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.

First, the main control unit 106 of the integrated multimedia processor performs the standby mode in step S200, and at the step S202, the weak / terrestrial DMB TS stream or the DTV TS stream or the external multimedia playback device from the TS stream interface unit 102 in step S202. Receives data in a multimedia format such as DVD or DivX from a CD.

In this case, when the data input from the TS stream interface unit 102 is a satellite DMB signal, the main controller 106 proceeds to step S306 in response to step S304 and performs steps S306 to S310. Processing of the satellite DMB signal is adaptively performed. 3 illustrates an adaptive signal processing flow in each integrated multimedia processor.

That is, the main control unit 106 demuxes the satellite DMB TS stream received through the TS stream interface unit 102 in the MPEG2 demux unit 104 in step S306, and then performs a video control unit in step S308. The video packet of the satellite DMB packet is decoded according to the H.264 standard through the H.264 engine 116 of (112). Subsequently, the main control unit 106 decodes the audio packet of the satellite DMB packet to the AAC standard through the DSP unit 114 at step S310.

Thereafter, the main controller 106 performs a graphic processing on the video signal of the decoded satellite DMB in operation S332 and displays it on a monitor screen connected to an integrated multiprocessor such as the LCD 130.

On the contrary, if the data input from the TS stream interface unit 102 is a terrestrial DMB signal, the main control unit 106 proceeds to step S314 in response to step S312, and steps S314 to S318. While performing the adaptive processing for the terrestrial DMB signal. 4 shows an adaptive signal processing flow in each integrated multimedia processor.

That is, the main control unit 106 demuxes the terrestrial DMB TS stream received through the TS stream interface unit 102 in the step S314 through the MPEG2 demux unit 104 and the MPEG4 synchronizer 108. After the execution, in step S316, the H.264 engine 116 of the video controller 112 performs video decoding on the video packet of the terrestrial DMB packet according to the H.264 standard. Subsequently, the main control unit 106 decodes the audio packet of the terrestrial DMB packet to the BSAC standard through the DSP unit 114 in step S318.

Thereafter, the main control unit 106 performs a graphic processing on the decoded terrestrial DMB video signal and displays it on a monitor screen connected to an integrated multiprocessor such as an LCD (S332).

In contrast, when the data input from the TS stream interface unit is a DTV signal, the main controller 106 proceeds to step S322 in response to step S320 and performs steps S322 to S326. Processing of the DTV signal is adaptively performed. 5 shows an adaptive signal processing flow in each integrated multimedia processor.

That is, the main control unit 106 demuxes the DTV TS stream received through the TS stream interface unit 102 in the step S322 through the MPEG2 demux unit 104, and then in step S324 the video control unit. The MPEG2 H / W engine 118 of 112 performs video decoding on the video packet of the DTV according to the MPEG2 standard. Subsequently, the main control unit 106 decodes the audio packet of the DTV packet to the AC3 standard through the DSP unit 114 in step S326.

Thereafter, the main control unit 106 performs a graphic processing on the decoded DTV video signal and displays the decoded DTV video signal on a monitor screen connected to an integrated multiprocessor such as the LCD 130.

In contrast, when the data input from the TS stream interface unit is a multimedia signal of DVD or DivX format from an external multimedia player, the main control unit 106 proceeds to step S330 in response to step S330. The DSP unit 114 performs video / audio decoding on multimedia signals in DVD and DivX formats.

Thereafter, the main control unit 106 performs a graphic processing on the decoded multimedia video signal in step S332 and displays it on a monitor screen connected to an integrated multiprocessor such as an LCD.

As described above, in the present invention, by designing a multimedia processor in a portable device or a home appliance as a single piece of hardware, the integrated processor can be adaptively processed for various multimedia input signals, thereby increasing the generalization and application of the chip. It becomes possible.

Meanwhile, in the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the invention should be determined by the claims rather than by the described embodiments.

As described above, in the present invention, by designing a multimedia processor in a portable device or a home appliance as a single piece of hardware, the integrated processor can be adaptively processed for various multimedia input signals, thereby making the chip universal and applicable. There is an advantage that can be widened.

Claims (8)

As an integrated multimedia processor, A TS stream interface unit for receiving a multimedia signal input from an external multimedia player of a TS stream received from various broadcast sources; An MPEG2 demux unit for demuxing the MPEG2 TS stream and the TS stream of satellite / terrestrial DMB; An MPEG4 synchronization unit for performing synchronization for MPEG4 parsing after the MPEG2 parsing of the terrestrial DMB TS; A video controller for decoding the demuxed video packet from the satellite / terrestrial DMB and DTV TS streams according to MPEG2 / MPEG4 and H.264 standards; A DSP unit for processing a multimedia video packet other than satellite / terrestrial / DTV that cannot be processed by the video controller, and decoding the audio packet of the satellite / terrestrial / DTV according to a standard of a corresponding data format; A graphic processing unit for displaying the satellite / terrestrial / DTV video signal and the multimedia video signal decoded from the video control unit and the DSP unit on a screen; Main control unit for adaptively processing various multimedia signals by controlling the operation of each unit of the integrated multimedia processor Integrated multimedia processor comprising a. The method of claim 1, The main control unit has a register for storing a setting value of each unit of the integrated multimedia processor. The method of claim 1, The video control unit, under the control of the main control unit, decodes the satellite / terrestrial DMB packet according to the H.264 standard, MPEG2 decodes the DTV packet, and decodes the multimedia video packet in the DSP. Integrated multimedia processor, characterized in that for transmission to the DSP for processing. The method of claim 1, The DSP unit decodes the audio packet of the satellite DMB according to the AAC standard, decodes the audio packet of the terrestrial DMB according to the BSAC standard, and decodes the DTV audio packet according to the AC3 standard. Integrated multimedia processor. The method of claim 1, And the DSP unit performs video / audio processing on a multimedia signal including DVD / DivX applied from the video controller. A method of processing multimedia signals in an integrated multimedia processor, (a) receiving a TS stream received from various broadcast sources and a multimedia signal input from an external multimedia player; (b) after demuxing the TS stream, determining a type of the TS stream; (c) video / audio decoding the satellite / terrestrial / DTV packet from the TS stream according to a standard corresponding to each broadcast signal; (d) video / audio decoding through the DSP when the multimedia signal is input; (e) displaying the decoded video / audio signal of the satellite / terrestrial / DTV packet and the multimedia signal on the screen; Integrated processing method for a multimedia signal comprising a. The method of claim 6, Step (c) may include: (c1) decoding the video / audio packet according to the H.264 / AAC standard when the data packet demuxed from the TS stream is a satellite DMB packet; (c2) decoding the video / audio packet according to the H.264 / BSAC standard when the data packet demuxed from the TS stream is a terrestrial DMB packet; (c3) decoding the video / audio packet according to the MPEG2 / AC3 standard when the data packet demuxed from the TS stream is a DTV packet; Integrated processing method for a multimedia signal comprising a. The method of claim 6, The multimedia signal input from the external multimedia player in step (a) is a multimedia signal, characterized in that the multimedia signal of the DVD, DivX format.

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