KR20050091539A - Method and apparatus for controlling receiver dvd/vcr combo receiver - Google Patents

Abstract

The present invention relates to a method of playing a receiver connected DVD (Digital Versatile Disc) / VCR (Video Cassette Recorder) composite product. When an arbitrary DVD title is inserted into a DVCR composite product, the inserted DVD title is a JPEG disc. A first step of judging whether the image is recognized; a second step of externally displaying an OSD text indicating whether audio is to be played when recognized as a JPEG disc; and a process of playing a JPEG file from an inserted DVD title if audio playback is not selected, A third step of displaying screen information externally; a fourth step of displaying AM / FM mode selection text on the OSD screen when audio playback is selected; and determining whether a predetermined mode is selected and selecting a desired radio when the predetermined mode is selected. And a fifth step of providing an environment to tune the broadcast and outputting the tuned audio signal through an external speaker. According to the present invention, the receiver-type DVCR composite product provides convenience for use, and provides various functions to the user, thereby increasing the user satisfaction.

Description

TECHNICAL AND APPARATUS FOR CONTROLLING RECEIVER DVD / VCR COMBO RECEIVER}

The present invention relates to a DVD / VCR (hereinafter referred to as DVCR) composite product to which a receiver is connected. In particular, a receiver-connected DVD capable of selectively outputting audio of CD audio or AM / FM radio when JPEG files are played. A playback apparatus and method for a / VCR composite product.

With the development of electronic technology, DVCR composite products with integrated DVD and VCR have been released, and recently, receivers (amps + decoders) are connected to these DVCRs in response to the high tendency of consumers such as home-theaters. The trend is to seek higher quality output sound.

In this receiver-connected DVCR composite product, it is possible to output picture information such as JPEG file through the DVD loader, and to output audio signal of the broadcast channel selected by the user through the internal tuner.

That is, when receiving a radio AM / FM broadcast signal, the broadcast channel selected by the user is tuned to process a broadcast signal as an audio signal, and the audio signal is amplified to a desired level by the digital amplifier through an RCA output or A / D conversion process. And output to the speaker.

In addition, when the JPEG file is reproduced, the MPEG processing unit inside the DVD loader decodes the compressed JPEG screen information to generate a video signal, and processes the generated video signal to be displayed on the screen.

As is well known, since no audio signal is carried in the JPEG file, only screen information is output when the JPEG file is reproduced.

That is, since these two functions operate separately, there is no technical solution for listening to a desired audio signal while playing a JPEG file.

The present invention has been implemented to overcome the above-mentioned limitations of the prior art, and when connected to a disc without an audio source, such as a JPEG file, a receiver connection type for selecting and outputting an audio source of an AM / FM radio without a video source It is an object of the present invention to provide a playback device and method for a DVD / VCR composite product.

According to an embodiment of the present invention for achieving this object, in a DVCR composite product in which a DVD player, a VCR, and a receiver are interworked with each other, an arbitrary audio / video signal is recorded on a video tape or recorded on a video tape. A VCR deck unit for reading video signals, a DVD loader having a built-in MPEG decoder for playing and outputting JPEG files in an arbitrary DVD title, and amplifying audio signals output from the VCR deck unit and DVD loader for output audio An audio signal processor for demodulating the signal, a video signal processor for amplifying the video signal output from the VCR deck unit and the DVD loader and demodulating the output video signal, and an RF signal input from the outside using a PLL (Phase Locked Loop) signal. Tuner unit for demodulating and demodulating to a desired signal, and PCM (Pulse Coded Modulation) demodulated from audio signal processing unit The digital amplifier unit modulates the signal into a pulse width modulation (PWM) signal, amplifies it to a desired level, restores the original analog signal through a low frequency filter, and outputs it to the speaker, and the tuner unit plays a predetermined JPEG file through the video signal processing unit. Provided is a playback device of a receiver-connected DVCR composite product including a control unit for controlling an audio signal processor to output a provided radio voice signal to the outside.

According to another embodiment for achieving the object of the present invention, in the playback method in a receiver-connected DVCR composite product, if any DVD title is inserted into the DVCR composite product, it is possible to determine whether the inserted DVD title is a JPEG disc. In step 1, as a result of the determination in the first step, the second step of displaying an OSD text indicating whether audio is to be played back when it is recognized as a JPEG disc, and if the audio playback is not selected after performing the second step, the inserted DVD A third step of reproducing the JPEG file from the title, displaying the predetermined JPEG screen information to the outside, and displaying the AM / FM mode selection phrase on the OSD screen when audio playback is selected after performing the second step. Step 4, determine whether a predetermined mode is selected, and if the predetermined mode is selected, provide the environment to tune to a desired radio broadcast, and select and tune the audio. An arc provides a playback method of the receiver, connected DVCR composite product comprising a fifth step of outputting through the external speaker.

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

1 is a block diagram of a playback device in a DVCR composite product connected to a receiver 300 to implement a method according to the present invention. The audio signal processor 100, the video signal processor 102, and the VCR deck unit are shown in FIG. (104), DVD loader 106, TV tuner unit 108, radio tuner unit 110, A / D conversion unit 112, digital amplifier unit 114, speaker 116, waveform shaping unit 200 ), An integration unit 202 and a control unit 204.

As shown in the drawing, the audio / video signal processing units 100 and 102 output audio and video signals output from the VCR deck unit 104 and the DVD loader 106 according to the control signals L1 and L2 of the control unit 204. It amplifies and demodulates the output audio / video signal.

The VCR deck unit 104 sends an arbitrary audio / video signal, for example, a broadcast program signal, to the video tape using the audio / video head in the VCR deck unit 104 in accordance with the control signal L3 of the control unit 204. Or to read and record audio / video signals recorded on a video tape to the audio signal processing unit 100 and the video signal processing unit 102.

The DVD loader 106 incorporates an MPEG decoder (not shown), and reproduces and outputs an arbitrary DVD title according to the control signal L4 of the control unit 204 to output the audio signal processing unit 100 and the video signal processing unit 102. To provide.

The TV tuner 108 and the radio tuner 110 tune the RF signal input from the outside to a desired signal based on the control signals L5 and L6 of the controller 204, for example, a phase locked loop (PLL) signal. Demodulation process.

The A / D converter 112 and the digital amplifier 114 convert the pulse coded modulation (PCM) signal demodulated from the audio signal processor 100 based on the control signal L7 of the controller 204 to the PWM (Pulse Width). Modulation) modulates the signal to a desired level, restores the original analog signal through a low frequency filter, and outputs the same to the speaker 116.

The waveform shaping unit 200 waveform-forms the RCA output signal generated from the audio signal processing unit 100, that is, the built-in speaker output signal, and provides the waveform to the integrating unit 202. In the integrating unit 202, the waveform shaping unit 200 is used. It integrates the square wave component provided from the module and takes a positive part and outputs it at a constant DC level.

The control unit 204 controls the audio / video signal processing unit 100 and 102, the VCR deck unit 104, the DVD loader 106, the tuner units 108 and 110 and the digital amplifier unit 114, respectively, It selectively serves to control the power supply unit 302 in the receiver 300 according to the DC level output from the integrator 202.

Hereinafter, with reference to the above-described configuration, with reference to the flowchart of Figure 2 attached to the playback process of the receiver-connected DVD / VCR composite product according to a preferred embodiment of the present invention will be described in detail.

First, if any DVD title is inserted into the DVCR composite product in step S200, the MPEG processing unit (not shown) in the DVD loader 106 determines whether the current DVD title is a JPEG disc.

As a result of the determination in step S200, if it is recognized as a JPEG disk, the control unit 204 proceeds to step S202 and displays the OSD text indicating whether audio is played out. That is, the user is asked if they want audio output while playing a JPEG file.

If audio reproduction is not selected in step S204, the control unit 204 proceeds to step S206 to proceed with the normal JPEG reproduction process.

That is, in step S206 and step S208, the video signal processing unit 102 is controlled to reproduce the JPEG file from the inserted DVD title. In step S210, the predetermined JPEG screen information is transmitted through the video signal processing unit 102. Control to display to the outside.

On the other hand, if audio reproduction is selected in step S204, for example, when an audio selection signal is input through a key input means, the control unit 204 proceeds to step S212 to display the AM / FM mode selection phrase on the OSD screen. The display then proceeds to step S214.

In step S214, the control unit 204 determines whether a predetermined mode, for example, an AM mode is selected, and if the predetermined mode is selected, the control unit 204 can select a desired broadcast through the radio tuner unit 110. Provide an environment.

Thereafter, as in steps S216 and S218, the controller 204 controls the audio signal processor 100 to output the tuned audio signal through the external speaker 116.

On the other hand, when playing back JPEG files in DVD mode, it is possible to select a DVD picture source and a radio sound source in VCR mode.

According to the present invention, the receiver-type DVCR composite product provides convenience for use, and provides various functions to the user, thereby increasing the user satisfaction.

As mentioned above, although this invention was concretely demonstrated based on the Example, this invention is not limited to this Example, Of course, various changes are possible within the range which does not deviate from the summary.

1 is an overall block diagram of a receiver-connected DVD / VCR composite product for implementing the method according to the present invention;

2 is a flowchart illustrating a playback process of a receiver-connected DVD / VCR composite product according to a preferred embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

100: audio signal processing unit 102: video signal processing unit

104: VCR deck section 106: DVD loader

108: TV tuner section 110: Radio tuner section

Claims (3)

In a DVCR composite product in which a DVD player, a VCR, and a receiver are combined with each other, A VCR deck section for recording any audio / video signal on a video tape or reading an audio / video signal recorded on the video tape; A DVD loader that embeds an MPEG decoder to play and output JPEG files in an arbitrary DVD title, An audio signal processor for amplifying an audio signal output from the VCR deck unit and the DVD loader and demodulating the output audio signal; A video signal processor for amplifying a video signal output from the VCR deck unit and the DVD loader and demodulating the video signal into an output video signal; A tuner unit which modulates and demodulates an RF signal input from the outside into a desired signal using a phase locked loop (PLL) signal; A digital amplifier unit which modulates a pulse coded modulation (PCM) signal demodulated from the audio signal processor into a pulse width modulation (PWM) signal, amplifies the signal to a desired level, and restores the original analog signal to a speaker through a low frequency filter; A control unit controlling the audio signal processing unit to output a radio voice signal provided through the tuner unit to the outside while reproducing a predetermined JPEG file through the video signal processing unit; Receiver connected DVCR composite product comprising a playback device. In a playback method in a receiver-connected DVCR composite product, When any DVD title is inserted into the DVCR composite product, a first step of determining whether the inserted DVD title is a JPEG disc; A second step of externally displaying an OSD text indicating whether audio is to be played back when it is recognized as a JPEG disc as a result of the first step; A third step of reproducing the JPEG file from the inserted DVD title and displaying predetermined JPEG screen information to the outside, if the audio reproduction is not selected after performing the second step; A fourth step of displaying an AM / FM mode selection phrase on an OSD screen when audio playback is selected after performing the second step; A fifth step of determining whether a predetermined mode is selected, and if the predetermined mode is selected, providing an environment for tuning a desired radio broadcast and outputting the tuned audio signal through an external speaker; Playback method of the receiver connected DVCR composite product comprising a. The method of claim 2, The method, When playing a JPEG file in the DVD mode, the method further comprises the step of selecting a DVD picture source and a radio audio source in the VCR mode.