KR20070105403A - Method for efficiently controlling power in a versatile complex digital broadcasting receiver - Google Patents

Abstract

A method for controlling low power in a multi-function composite digital broadcasting receiver is provided to reduce power consumption by supplying power to only a recording device preset by a user. A method for controlling low power in a multi-function composite digital broadcasting receiver comprises the following steps of: receiving a timer recording channel, time information, and device information to record within a receiver set to perform timer recording(S308); setting up a timer recording mode to the receiver set according to the inputted timer recording information; selectively supplying operation power to only an MPEG(Moving Picture Experts Group)-assigned device selected for the timer recording within the receiver set until it is a timer recording time; booting up only the MPEG-assigned device and recording a broadcast program of which timer recording is requested(S310); and turning off the system power of the receiver set until the timer recording is completed(S314).

Description

Low power control method in multifunctional composite digital broadcasting receiver {METHOD FOR EFFICIENTLY CONTROLLING POWER IN A VERSATILE COMPLEX DIGITAL BROADCASTING RECEIVER}

1 is a flowchart of a reservation recording operation control in a conventional multifunctional composite digital broadcasting receiver;

2 is a schematic block diagram of a multifunctional composite digital broadcast receiver to which an embodiment of the present invention is applied;

3 is a flowchart of a reservation recording operation in a multifunctional composite digital broadcasting receiver according to an embodiment of the present invention;

<Brief description of the major symbols in the drawings>

200: TV receiver 202: microcomputer

204: sub micom 206: key input unit

208: DVD-RW 210: HDD

212: power stage 214: video processing unit

216: audio processing unit 218: SPK

220: display unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital broadcasting receiver, and more particularly, to a low power control method when performing a reservation recording function in a multifunctional composite digital broadcasting receiver equipped with a large capacity hard disk drive (HDD) or a DVD-RW.

A digital broadcasting receiver, commonly called a set top box, is a device configured with a TV receiver to receive various TV image data of multiple channels transmitted through a network or satellite, and transmitted through a network or satellite. Receive the digital broadcasting data compressed by the MPEG-2 method, decompress the compressed data, decode the encoded data, and convert the encoded data into a standard NTSC signal so that it can be displayed on a TV receiver.

That is, the digital broadcast receiver receives a bit-stream type digital broadcast signal transmitted by a broadcasting station and broadcasts a channel selected from the broadcast signals received by transport demux. It is configured to extract the signal, decode the extracted broadcast signal in a moving picture experts group (MPEG) -2 scheme, and display the extracted broadcast signal.

On the other hand, the digital broadcast receiver as described above, in addition to the conventional broadcast reception function, recently built a device such as HDD and DVD-RW to record a large amount of video data such as TV to perform a variety of multimedia complex functions It is being developed as a composite video device, and the digital broadcast receiver developed as the composite video device can execute a function such as reservation recording for a broadcast program using a large capacity HDD or DVD-RW. Various convenient functions are provided according to the development, and convenience for use is greatly increased.

However, in the case of reservation recording in the multifunction composite digital broadcasting receiver implemented as the composite video device, various video products are mixed, so the system reserves all the power of the set on the reservation at the scheduled time. There is a problem in that power consumption occurs when power is applied to devices that are not designated devices for recording.

FIG. 1 illustrates a flow of a reservation recording operation in a digital broadcast receiver implemented with a conventional composite video device. Hereinafter, a conventional reservation recording operation will be briefly described.

First, when the reserved recording is set by the user, the multifunctional composite digital broadcast receiver selects a recording device for the broadcast program requested for the reserved recording from the user and sets the reserved recording (S100). Then, when the scheduled recording time comes, the sub micom of the multifunction composite digital broadcasting receiver turns on the system power (S102), and then powers various devices to the digital broadcasting receiver such as a DVD-RW or HDD. It is applied (S104).

Sub-microcom then commands recording of the broadcast program to a device designated by the user among devices capable of recording the pre-recorded broadcast program such as DVD-RW or HDD (S106), and then records it through the MPEG-designated device. After performing (S108), when recording ends, the sub-microcom turns off the system power of the receiver set to complete the scheduled recording (S110).

That is, as described above, in the multi-function composite digital broadcast receiver implemented as a conventional video composite device, unnecessary power is supplied to devices not used for the reservation recording operation by supplying operation power to other devices in addition to the MPEG-designated recording devices during the reservation recording. There was a problem that the total power consumption increases as authorized.

Accordingly, an object of the present invention is to provide a low power control method when performing a reservation recording function in a multifunctional composite digital broadcasting receiver equipped with a large capacity HDD or a DVD-RW.

According to an aspect of the present invention, there is provided a low power control method in a multifunctional composite digital broadcasting receiver, comprising the steps of: (a) receiving a reservation recording channel and time information and device information to be recorded in the receiver set to perform a reservation recording; (b) setting a reservation recording mode in the receiver set according to the input reservation recording information; and (c) operating power only to the MPEG designated device selected for the reservation recording in the receiver set when the reservation recording time comes. (D) booting up only the MPEG-designated device to record a scheduled recording broadcast program; and (e) turning off the system power of the receiver set when the reserved recording is terminated. 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.

2 is a schematic block diagram of a multifunctional composite digital broadcast receiver including HDD and DVD-RW functions to which an embodiment of the present invention is applied.

Hereinafter, an operation of each part of the digital broadcast receiver of the present invention will be described in detail with reference to FIG. 2.

First, the key input unit 206 and a remote controller (not shown) generate a key data signal according to a user's key operation and apply the generated key data signal to the sub micom 204.

The sub micom 204 applies the key input information of the user input from the key input unit 206 or the remote controller to the main micom, and controls the power stage 212 to control the devices in the receiver set according to the key input information. The operating power is supplied to the DVD-RW 208, the HDD 210, and the like.

The TV receiver 200 receives the TS stream of the broadcast program transmitted from the terrestrial wave or satellite and applies it to the main microcomputer 202. The TV receiver 200 tunes the bit stream of the channel corresponding to the tuning control signal of the main microcomputer 202 among the bit streams received from the terrestrial or satellite through the antenna, and receives the tuned signal. It is composed of a channel decoder for decoding by VSB, QPSK, QAM, etc. according to the transmission method, and a demultiplexer for receiving a digital stream decoded by the channel decoder and separating video, audio, and additional information streams.

The main microcomputer 202 decodes and outputs a broadcast signal demultiplexed from the TV receiver 200 into an audio signal and a video signal, and then decodes the broadcast signal through a predetermined signal processing process through the video / audio processing units 214 and 216. The display unit 220 is displayed on the screen.

The video processor 214 receives an MPEG decoded video signal from the main microcomputer 202 and converts the video signal into an image signal that can be displayed on a screen of the display unit 220 of a TV receiver such as a CRT, a PDP, an LCD, and the like. The audio processor 216 receives the audio signal and plays the audio signal through an audio output unit such as a speaker (SPK) 218.

The DVD-RW 208 is a component that performs the operation of the DVD mechanism under the control of the master microcomputer 202. The DVD-RW 208 is a DVD control unit for controlling the overall operation of the DVD mechanism system, a DVD disc is inserted, and the control of the DVD control unit. And an optical pickup section for performing playback and recording operations on the inserted DVD disc.

In addition, when the reservation recording setting from the user is input, the master microcomputer 202 receives the reservation recording information through the sub-microcom 204, and the broadcast program time requested by the user for reservation recording according to the embodiment of the present invention. Among the devices such as DVD-RW, HDD, etc., a device to be recorded is selected, and reservation recording is set in the receiver set. Then, when the preset recording time is reached, the main microcomputer 202 operates the Roman power stage 212 to the MPEG-designated device such as DVD-RW, HDD, etc., which is selected in advance for the reserved recording through the sub-microcom 204. By controlling the power to be supplied, it is possible to prevent the operation power from being supplied to devices unnecessary for the reservation recording operation, thereby preventing waste of power consumption.

3 is a flowchart illustrating a reservation recording operation control flow in a multifunctional composite digital broadcasting receiver implemented with a composite video device according to an exemplary embodiment of the present invention. Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 2 and 3.

First, the sub micom 204 of the multifunction composite digital broadcast receiver waits for a user's command through the key input unit 206 when the power is turned on (S300).

In this case, when a user wants to perform a reservation recording according to the present invention, the user can schedule and record the broadcast program and time information, and various MPEG data such as the DVD-RW 208 and the HDD 210 provided in the multifunctional composite digital broadcast receiver. Among devices that can be recorded, a device to be scheduled recording is selected and input.

then. The sub microcomputer 204 applies the reservation recording setting and the recording device information input by the user in step S302 to the master microcomputer 200.

Subsequently, the sub microcomputer 204 checks whether the scheduled recording time set by the user is reached in step S304, and when the scheduled recording time is reached, determines the device that has been set in advance in step S306, and is previously determined by the user. The operation power is supplied to the corresponding device such as the selected DVD-RW 208, the HDD 210, and the like through the power supply stage 212, and the device information and the reservation recording information set for the current reservation recording in step S308 are obtained. To 202.

Then, the master microcomputer 202 boots up only the MPEG-designated device supplied with the operation power by the sub-microcom 204 in step S310, and performs the scheduled recording for the corresponding broadcast program. Recording is started with the device to perform scheduled recording.

Subsequently, the main microcomputer 202 checks whether the recording of the broadcast program that is reserved for the recording to the MPEG-designated device is terminated in step S312, and notifies the sub micom 204 of the recording termination when the recording is finished. Accordingly, the sub microcomputer 204 turns off the power of the system (S314) to end the reserved recording.

However, in contrast, when there is a key input from the user through the key input unit 206 before the reservation recording is terminated, the sub micom 204 recognizes the key input from the user and proceeds from step S316 to step S318. In addition to the devices for which the reserved recording is performed, all other devices in the receiver set are supplied with operating power through the power supply stage 212 to wait for the user to perform an operation according to a key input command.

As described above, according to the present invention, when performing the reserved recording in the multifunctional composite digital broadcasting receiver implemented as the composite video device, the reserved power is supplied by supplying operation power only to the recording device preset by the user among the plurality of recording devices provided in the receiver set. By only operating the devices necessary for the operation, power is supplied to the devices unnecessary for the reservation recording operation, thereby preventing power wasting.

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, when performing the reserved recording in the multifunction composite digital broadcasting receiver implemented as the composite video apparatus, the operation power is supplied only to the recording device preset by the user among the plurality of recording devices provided in the receiver set. By allowing only devices necessary for recording to be operated, there is an advantage that power can be prevented from being wasted by supplying operating power to devices unnecessary for the reservation recording operation.

Claims (2)

As a low power control method in a multifunctional composite digital broadcast receiver, (a) receiving reserved recording channel and time information and device information to be recorded in the receiver set to perform the reserved recording; (b) setting a reservation recording mode in the receiver set according to the input reservation recording information; (c) selectively supplying operating power only to the MPEG designated device selected for the reservation recording in the receiver set when the reservation recording time comes; (d) booting up only the MPEG-designated device to record a broadcast program for which reservation recording is requested; (e) turning off the system power of the receiver set when the reservation recording is terminated; Low power control method in a multifunctional composite digital broadcast receiver comprising a. The method of claim 1, In the step (d), if a key input is generated from the user during recording of a broadcast program that is reserved for the designated device, (e) waits for the user's key input by supplying operation power to other devices in the receiver set. A low power control method in a multifunctional composite digital broadcast receiver further comprising the step of performing a mode.

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