KR20080063678A - Combination digital television and personal computer with built-in personal video recorder and recording/reproducing method using the same - Google Patents

Abstract

A digital television integrated with a PC having a built-in PVR function and a recording and reproducing method using the same are provided to reduce a cost for a storage unit by implementing a PVR function and a PC function by using only one storage unit and use PVR data, stored in a storage unit, even on a PC. In a PC(Personal Computer) circuit unit(300), a PVR(Personal Video Recorder) processor(370) is disposed. The PVR processor receives a broadcasting signal transmitted from a DTV(Digital Television) circuit unit(100), and converts the received broadcasting signal into data of a PVR format. The converted PVR data is stored in a storage unit(360) according to control of a PC controller(310). The DTV circuit unit includes a DTV controller(140) for transmitting a PVR recording and reproduction related command to the PC controller during PVR recording and reproduction.

Description

Combination digital TV with built-in PC function and recording and playback method using the same

1 is a block diagram schematically showing a main circuit of a PC-compatible DTV having a PVR function according to the prior art.

Figure 2 is a circuit block diagram showing a digital TV with a built-in PVR function according to an embodiment of the present invention.

3 is a flowchart illustrating a PVR recording and reproducing process according to the present invention.

* Explanation of symbols for the main parts of the drawings

100: DTV circuit unit 101: remote control receiver

111: NTSC decoder 113: DTV receiver

115: audio processor 120: path selection means

130: A / V processor 140: DTV control unit

300: PC circuit unit 310: PC control unit

320: north bridge 330: south bridge

340: audio codec 350: super input and output unit

360: storage means (hard disk drive) 370: PVR processing unit

The present invention relates to a dual-purpose digital TV with a built-in PVR (Personal Video Recorder) function, in particular, in the case of a dual-use digital television for the PVR function, the DTV board and the PC board to embed a hard disk, respectively, this one The present invention relates to a digital PC with a built-in PVR function that performs a PVR function and a PC function by implementing a hard disk, and a recording and playback method using the same.

Recently, as the communication environment improves, the Internet speed in the home has developed to several tens of Mbps, and as the Internet speed has increased, more and more families are downloading and watching videos on the web through personal computers.

In addition, the PC is moving from the desk to the living room, and accordingly, the living room is now trying to implement functions that can be performed on the PC such as watching videos, surfing the web, searching E-mail, shopping online, and playing games on the large screen of the television. Attempts are underway.

Therefore, due to these demands, products combining personal computers (hereinafter referred to as PCs) and digital televisions (hereinafter referred to as DTVs) have emerged. Until now, PC boards are simply embedded in DTVs and PC boards are functional in DTVs. It is not a form of complex product, but rather mechanically simple combined.

Conventional PC combined DTV is divided into PC board and DTV board, and the interface between the two boards is made through video signal line, audio signal line and control signal line.

Basically, such a PC-based DTV is a structure that outputs a video signal and an audio signal of a PC through a display panel and a speaker of a television, so that the video / audio signal of the PC is directed toward the DTV. And when event of PC and DTV occurs, control signal line is used for processing.

FIG. 1 is a block diagram schematically showing the main circuit of a PC-compatible DTV having a PVR function according to the prior art, and includes a DTV circuit unit 10 and a PC circuit unit 30.

As shown in the drawing, the DTV circuit unit 10 includes an NTSC decoder 11 for receiving and decoding an analog video signal input from an analog / digital tuner or an external device, and a digital video signal input from an analog / digital tuner or an external device. A DTV receiver 12 receiving and removing noise or converting it into digital data; an audio processor 13 receiving an audio signal input from an analog / digital tuner or an external device and performing signal processing such as noise removal; Path selection means (14) for selectively receiving video signals output from the NTSC decoder (11) and the DTV receiver (12) and receiving an audio signal from the audio processor (13), and selecting an output path of each signal; Receives the video signal and the audio signal output through the path selection means 14 in PVR (Personal Video Recorder) format And a PVR processing unit 15 which decodes the data stored in the hard disk 16 and provides it to the path selection means 14, and the PVR according to the PVR recording function. Hard disk 16 for storing the video and audio signals of the PVR format output through the processing unit 15, the video signal output through the path selection means 14 and the audio output through the audio processor 14 A / V processor 17 for receiving a signal and extracting a control signal included in the video signal, separating the video signal and the control signal, decoding the signal, and synchronizing the video signal and the audio signal to the display panel and the speaker, And a DTV control unit 18 for controlling the operation of all the DTV circuit units including the path selection means 14, the PVR processing unit 15, the A / V processor 17, and the hard disk 16 according to the PVR recording and playback mode. Including W is made.

In addition, the PC circuit unit 30 is largely composed of a PC control unit 31, a North Bridge (32) and the South Bridge (33).

The north bridge 32 is responsible for digital image output and memory management with the PC controller 31, and the south bridge 33 is responsible for various input / output (I / O), and the south bridge 33 provides an audio signal. An audio codec 34 for outputting to the DTV circuit unit, a Super I / O unit 35 for communication with the DTV control unit 18, a hard disk 36 for storing various operating programs and data, And a communication interface 37 for connecting to the Internet is further configured.

The north bridge 32 of the PC circuit unit 30 outputs a video signal of a DVI (Digital Video Interactive) format, which is a compressed data used to record a moving picture as digital data, to the digital receiver 19 of the DTV circuit unit 10. The south bridge 33 outputs the audio signal to the A / V processor 17 of the DTV circuit unit 10 in the SPDIF format via the audio codec 34. In addition, the super input / output unit 35 performs mutual communication with the DTV control unit 18 of the DTV circuit unit 10 through a control signal line under the control of the PC controller 31.

Unlike the PC functioning as a TV DTV configured as a TV receiving card, the PC circuit unit 30 and the DTV circuit unit 10 are separated and built in the TV separately.

Therefore, in the related art, when implementing the PVR function in a PC-compatible DTV, a hard disk 16 (HDD) for recording a broadcast signal is mounted in the DTV circuit unit 10, and the PC circuit unit 30 also includes a hard disk for PC function. HDDs are mounted, and both of the hard disks 16 and 36 mounted in the television are two.

As a result, in the conventional DTV with a built-in PVR function, the cost of the hard disk increases due to the plurality of hard disks, and the PVR data is stored in the hard disk of the DTV circuit unit. There was a problem that can not be performed at all.

The purpose of the present invention is to realize a PVR function and a PC function by simultaneously using only one storage means such as HDD in the dual-purpose PC DTV, PC-integrated digital television with a built-in PVR function that can significantly reduce the cost for the storage means; It is to provide a recording and playback method using the same.

Another object of the present invention is to provide a PC-compatible digital TV with a built-in PVR function that allows the PVR data to be used and edited on the PC as the PVR data of the DTV is stored in the storage means on the PC side, and a recording and playback method using the same. There is.

Technical means of the present invention for achieving the above object is, in the dual-purpose digital TV of the DTV circuit unit and the PC circuit unit in the television to perform the PVR function, the PVR processing unit is disposed in the PC circuit unit, the PVR processing unit DTV The broadcast signal transmitted from the circuit unit is received and converted into a PVR format, and the PC controller is configured to control the converted PVR data according to a control command of the DTV controller to be stored in the storage means.

In detail, the DTV circuit unit may include a DTV control unit configured to transmit and control a PVR recording and playback related command to the PC controller during PVR recording and playback.

The PC circuit unit, the storage means for storing the PVR data; A PVR processing unit converting the broadcast signal transmitted from the DTV circuit unit into a PVR format or converting PVR data output from the storage unit into a transport stream and providing the same to the DTV circuit unit; And a PC controller configured to record the PVR data output from the PVR processing unit to the storage means or to read the PVR data recorded in the storage means to be output to the PVR processing unit according to the PVR recording and playback command of the DTV controller. It is done.

In addition, the storage means is characterized in that it stores various operating programs and PC-related data in addition to the PVR data, the DTV circuit portion and the PC circuit portion, video signal line, audio signal line, control signal line and PVR data line It is characterized in that interconnected with.

The technical method of the present invention for achieving the above object, the DTV control unit of the digital television control to transmit the received broadcast signal to the PVR processing unit located in the PC circuit unit; Converting, by the PVR processing unit, the broadcast signal transmitted from the DTV circuit unit into a PVR format and recording the data in a storage unit under the control of the PC controller; If the DTV control unit receives a playback command of the PVR data from the outside, transmitting the command to the PC control unit of the PC circuit unit; And the PC controller reads the corresponding PVR data recorded according to a PVR playback request of the DTV controller from the storage means and transmits the PVR data to the DTV circuit unit for display.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a circuit block diagram showing a PC and a digital TV with a built-in PVR function according to an embodiment of the present invention, and includes a DTV circuit unit 100 and a PC circuit unit 300.

As shown in FIG. 2, when the present invention is compared with FIG. 1, the storage unit located in the DTV circuit unit is removed, and the PVR processing unit located in the DTV circuit unit is changed to a PC circuit unit. The function is implemented in connection with the PC control unit, PVR processing unit and storage means installed on the PC circuit unit side.

The DTV circuit unit 100 may include an NTSC decoder 111, a DTV receiver 113, an audio processor 115, a path selection unit 120 (MUX CPLD), an A / V processor 130, a DTV control unit 140, and the like. Consists of including.

The NTSC decoder 111 is configured to receive and decode an analog video signal input from an analog / digital tuner or an external device, and the DTV receiver 113 provides a digital video signal input from an analog / digital tuner or an external device. The audio processor 115 is configured to receive an audio signal input from an analog / digital tuner or an external device and perform signal processing such as noise removal.

The multiplexer complex programmable logic device 120 may be operated according to a control signal to selectively receive a video signal output from the NTSC decoder 111 or the DTV receiver 113 and from the audio processor 115. It is configured to receive or output an audio signal to the PVR processing unit 370 located in the A / V processor 130 and the PC circuit unit 300 respectively. In addition, the path selection means 120 is configured to receive the PVR data in the form of a transport stream output from the PVR processing unit 370 and deliver the PVR data to the A / V processor 130.

The A / V processor 130 receives the video signal and the audio signal output through the path selection means 120, extracts the control signal included in the video signal, and decodes the video signal and the control signal. In addition, it is configured to synchronize the video signal and the audio signal to the display panel 155 and the speaker 165 side.

The scaler 151 scales the image data processed by the A / V processor 130 according to the size of the display panel 155 and then displays the display panel through the LVDS unit 153 (Low Voltage Differential Signaling). And the audio processing unit 161 converts the audio data processed by the A / V processor 130 into an analog signal and then amplifies and outputs the audio data to the speaker 165. .

The DTV control unit 140 controls the path selection means 120 and the A / V processor 130 and transmits a control command to the PC circuit unit 300 according to a preset or requested PVR recording and playback mode. It is configured to control the overall operation of the DTV.

In addition, the A / V processor 130 receives an encoded video stream, for example, an MPEG transmit stream, decodes them, and outputs 8-bit video data and audio data of R, G, and B, respectively. The decoding operation is controlled by the DTV controller 140 when the A / V processor 130 decodes the transport stream. To this end, the A / V processor 130 and the DTV controller 140 exchange data via the PCI bus.

In addition, the PC circuit unit 300 includes a PC controller 310, a North Bridge 320, a South Bridge 330 South Bridge, and a PVR processing unit 370 as shown. The PC controller 310 controls the overall operation of the PC circuit unit 300, but controls the recording and playback related operations of the PVR data at the request of the DTV controller 140, and the north bridge 320 controls the PC controller. The input / output of the 310 and digital image output and memory management, and the south bridge 330 is responsible for various input / output (I / O) including PVR data, audio signals and control signals.

A plurality of devices are connected to the south bridge 330. An audio codec 340 for outputting an audio signal to the A / V processor 130 of the DTV circuit unit 100, and the DTV of the DTV circuit unit 100. The control unit 140 and the PC control unit 310 of the PC circuit unit 300 are connected by a communication line, such as a universal asynchronous receiver transmitter (UART) interface, to supervise the communication between the DTV control unit 140 and the PC control unit 310. Storage means such as a hard disk (HDD) and a large capacity nonvolatile memory for storing the input / output unit 350 (Super I / O), various PC-related operating programs, and PC data and PVR data downloaded through the Internet. 360, and a communication interface 380 such as Ethernet for Internet connection is further configured.

In addition, a PVR processing unit 370 is further connected to the south bridge 330 through a PCI bus, and the PVR processing unit 370 is a video signal output through the path selection unit 120 of the DTV circuit unit 100. It is configured to receive and convert the PVR format to the South Bridge 330 and to decode the PVR data output from the storage means 360 to output the path selection means 120.

That is, the north bridge 320 of the PC circuit unit 300 is a DTV circuit unit to output a video signal of the DVI (Digital Video Interactive) format, which is a compressed data used when recording a moving picture as digital data under the control of the PC controller 310 Output to the digital receiver 170 of the (100), the South Bridge 330 receives the PVR data transmitted from the PVR processing unit 370 according to the control signal of the PC controller 310 to store in the storage means 360 In addition, the PVR data read from the storage means 360 is provided back to the PVR processing unit 370 under the control of the PC controller 310. In addition, the audio signal on the PC is output through the audio codec 340 to the A / V processor 130 of the DTV circuit unit 100 in the SPDIF format.

Here, the Sony-Philips Digital Interface Format (SPDIF) is a digital voice connection standard for consumer devices standardized by Sony / Philips.

In addition, as shown, the DTV circuit unit 100 and the PC circuit unit 300 are connected to each other by a video signal line, an audio signal line, a control signal line, and a PVR data line.

As described above, in the present invention, when the PVR processing unit 370 disposed in the PC circuit unit 300 receives a broadcast signal from the DTV circuit unit 100, the PVR processing unit 370 converts the PVR format into a PVR format and outputs the result to the south bridge 330. The output PVR data is stored in the storage means 360 under the control of the PC controller 310 according to the control command of the DTV controller 140.

Then, the PVR recording and playback process of the dual-purpose digital TV configured as described above will be described using the flowchart of FIG. 3. In addition, hereinafter, the case of digital broadcasting instead of analog broadcasting will be described as an example, but is not limited thereto.

First, the DTV receiver 113 receives a digital video signal, removes noise, converts it into digital data, and outputs the video signal to the path selection means 120 in the form of a transport stream.

The path selection unit 120 receives the video signal output from the DTV receiver 113 and outputs the video signal to the PVR processing unit 370 and the A / V processor 130 of the PC circuit unit 300, respectively.

The A / V processor 130 is provided with the video signal output from the path selection means 120 and the audio signal output from the audio processor 115, and extracts the control signal included in the video signal to extract the video signal and the control signal. Decoded and separated, and the video signal and the audio signal are synchronized to output to the display panel 155 and the speaker 165, respectively. Accordingly, the currently received broadcast is displayed (S1).

On the other hand, the PVR processing unit 370 located in the PC circuit unit 300 receives the video signal and the audio signal in the form of a transport stream through the path selection unit 120 and converts the video signal into the PVR format and then outputs it to the South Bridge 330. The PVR data output to the south bridge 330 is stored in the mass auxiliary storage means 360 such as a hard disk HDD under the control of the PC controller 310 (S2 and S3). The PVR data stored in the storage means 360 is recorded together with the time information, and the recordable recording amount allocated to the storage means 360 is predetermined.

In addition, there is a recording mode and a recording release mode in relation to the PVR mode, and the DTV controller 140 is previously set to the recording mode by default. That is, when the operating power is applied to the digital television, the DTV controller 140 checks the PVR mode and, when the PVR mode is the recording mode, controls the path selecting means 120 to the recording mode so that the video and audio signals are output to the PC circuit unit ( In addition to being output to the PVR processing unit 370 of 300, the PC controller 310 transmits the PVR recording control signal to the PC control unit 310 through the super input / output unit 350. The PVR data input to the bridge 330 is controlled to be recorded in the storage means 360. At this time, only about 2 hours of recording time can be recorded based on the recording time. When all 2 hours of PVR data are recorded, the PC controller 310 controls to record new PVR data while erasing old PVR data from this time. Done. Of course, the PVR recording time and recording mode can be changed by the user.

Through such a process, the currently received broadcast is displayed and the recording means 360 is automatically recorded in the PVR recording mode.

In such a state, when the DTV control unit 140 receives a command to play back the PVR data recorded for a predetermined time from the current time point from the remote control receiver 101 (S4), the DTV control unit 140 issues such a command to the PC circuit unit. In addition to transmitting to the super input and output unit 350 of 300, the path selection means 120 is controlled to the PVR playback mode. Subsequently, the super input / output unit 350 of the PC circuit unit 300 transmits the PVR playback command transmitted from the DTV control unit 140 to the PC controller 310 through the south bridge 330 and the north bridge 320 (S5). ).

Accordingly, the PC controller 310 reads the recorded PVR data from the storage means 360 from the time when the user requests playback. That is, the PC controller 310 reads the recorded PVR data from the storage means 360 from the time point requested by the user, and controls the read PVR data to be output to the PVR processor 370 through the south bridge 330. (S6, S7).

The PVR processing unit 370 receives the PVR data transmitted from the storage unit 360, decodes the received PVR data in the form of a transport stream, and transmits the received PVR data to the path selection unit 120 of the DTV circuit unit 100. The PVR data is transferred to the A / V processor 130 (S8).

Accordingly, the A / V processor 130 receives the PVR data output to the path selection means 120, extracts the control signal included in the video signal, decodes the video signal and the control signal, and decodes the video signal. The audio signal is synchronized to the display panel 155 and the speaker 165, respectively. Accordingly, the display panel 155 displays an image, and the speaker 165 outputs audio (S9).

On the other hand, the DTV controller 140 does not output the video and audio signals input through the DTV receiver 113 and the audio processor 115 to the A / V processor 130, but to the PVR processor 370. The selection means 120 is controlled (S10). That is, when the PVR playback command is input from the remote control receiver 101, the DTV controller 140 reads the PVR data from the storage means 360 at a specific time requested by the user in association with the PC controller 310 and displays the display panel 155. By outputting to the PVR processing unit 370 through the path selection means 120 and outputs the currently received broadcast is automatically recorded in the storage means 360.

Therefore, the present invention implements the PVR and PC functions using one storage means 360.

On the other hand, while the present invention has been shown and described with respect to specific preferred embodiments, various modifications and changes of the present invention without departing from the spirit or field of the invention provided by the claims below It can be easily understood by those skilled in the art.

As described above, the present invention can reduce the cost of the storage means by implementing the PVR function and the PC function using only one storage means in the dual-purpose DTV PC, and edit and save the PVR data stored in the storage means on the PC. There is an advantage available.

Claims (6)

In the digital TV for dual use with the DTV circuit and the PC circuit in the television to perform the PVR function, The PVR processing unit is disposed in the PC circuit unit, wherein the PVR processing unit receives the broadcast signal transmitted from the DTV circuit unit and converts the data into PVR format data, and the converted PVR data is stored in the storage unit under the control of the PC controller. PC and digital TV with built-in PVR function. The method according to claim 1, The DTV circuit unit, a digital TV with a built-in PVR function, characterized in that it comprises a DTV control unit for controlling the transmission of the PVR recording and playback-related commands to the PC controller during PVR recording and playback. The method according to claim 2, The PC circuit unit, the storage means for storing the PVR data; A PVR processing unit converting the broadcast signal transmitted from the DTV circuit unit into a PVR format or converting PVR data output from the storage unit into a transport stream and providing the same to the DTV circuit unit; And a PC controller configured to record the PVR data output from the PVR processor to the storage means or to read the PVR data recorded in the storage means to be output to the PVR processor according to the PVR recording and playback command of the DTV controller. PC and digital TV with built-in PVR function. The method according to claim 3, The storage means is a digital TV with a built-in PVR function, characterized in that the various operating programs and data stored in the PC circuit unit in addition to the PVR data. The method according to any one of claims 1 to 4, The DTV circuit unit and the PC circuit unit, the PC and digital TV with a built-in PVR function, characterized in that the interconnected by the video signal line, audio signal line, control signal line and PVR data line. Controlling the DTV control unit of the digital television to transmit the received broadcast signal to the PVR processing unit located in the PC circuit unit; Converting, by the PVR processing unit, the broadcast signal transmitted from the DTV circuit unit into a PVR format and recording the data in a storage unit under the control of the PC controller; If the DTV control unit receives a playback command of the PVR data from the outside, transmitting the command to the PC control unit of the PC circuit unit; And And the PC control unit reads the corresponding PVR data recorded according to a PVR playback request of the DTV controller from the storage unit, and transmits the PVR data to the DTV circuit unit to display the PVR data.

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