KR100343708B1 - Audio receiving apparatus for tvcr and control method thereof - Google Patents

Abstract

The present invention relates to a TV receiver's voice receiving apparatus and a control method thereof, and in the prior art, there is a problem in that two broadcast signals can be simultaneously received and hi-fi voice signals cannot be reproduced or recorded, and each port is controlled. As a result, in the case of a stereo receiver having many switching channels, the wiring design and the switching hardware become very complicated as the number of ports in each switching unit increases. Accordingly, the present invention has been made to solve the above-described conventional problems, and by receiving a plurality of stereo voice detection processors at the same time by receiving a multiplexing switch which is switched under the control of a microcomputer in a plurality of stereo voice detection processors, In addition, there is an effect that can record other channels or the same channel in hi-fi, and, in the case of the scrambled broadcast signal is released and outputted, the unscrambled signal has the effect of recording or listening as it is.

Description

AUDIO RECEIVING APPARATUS FOR TVCR AND CONTROL METHOD THEREOF}

The present invention relates to an apparatus for receiving a voice of a television and a control method thereof. In particular, a television for receiving two stereo broadcasts at the same time and recording stereo audio of another channel or the same channel in hi-fi while listening to a stereo voice. A voice receiving device of a seed and a control method thereof.

FIG. 1 is a block diagram showing the configuration of a conventional TV voice receiver. As shown in FIG. 1, a tuner 12 receiving a broadcast signal selected by a control signal SDA and a clock SCL from an antenna 11 is shown. 13; The first intermediate frequency demodulator 14 converts the broadcast signal received from the tuner 12 into a signal of an intermediate frequency band by a control signal SDA and a clock SCL and outputs an audio signal through the speaker 35. Wow; A second intermediate frequency demodulator (15) for converting the broadcast signal received by the tuner (13) into a signal of an intermediate frequency band by a broadcast reception band (L2 / L ') and a voice reception band (BG2 / LL'); The signals output from the first and second intermediate frequency demodulators 14 and 15 and the external input signal AV are selected by control signals AV1 / AV2 (EE / WW), respectively. A switch unit 17 for outputting the control unit; A switch unit (18) for selecting whether to output the speaker output from the switch unit (17) by the control signals (AV1 / AV2) (EE / WW); A signal decoder 21 for receiving the signal selected by the switch unit 17 through the skat connection terminal 20, decoding the signal, and outputting the decoded signal to the speaker 35; It is composed of a microcomputer 16 for controlling the operation of the respective parts, it will be described in detail the operation process according to the prior art configured as described above.

First, the tuner 12 receives a broadcast signal of a channel having a predetermined frequency through the antenna 11 by the control signal SCL (SDA) of the microcomputer 16, and controls the microcomputer 16. By the signal SCL (SDA), the tuner 13 receives a broadcast signal of another channel through the antenna 11.

In this case, the channels respectively received through the tuners 12 and 13 are received from the same antenna 11, so that the intermediate frequency demodulator 14 receives the broadcast signal received by the tuner 12 as a signal of intermediate frequency details. The intermediate frequency demodulator 15 converts the broadcast signal received by the tuner 13 into a signal of the intermediate frequency band and outputs the converted signal.

In addition, the switch unit 17 controls the broadcast signal converted by the intermediate frequency demodulator 14 and the intermediate frequency demodulator 15 by the control signals AV1 / AV2 (EE / WW) of the microcomputer 16. One of the converted broadcast signals is selected to output the first signal, and one of the broadcast signals converted from the external input signal AV is selected to output the second signal.

At this time, the switch unit 18 selects whether to output the signal output from the switch unit 17 through the speaker 35 by the control signals AV1 / AV2 (EE / WW), When the signal selected by the switch unit 17 is a scrambled signal, the signal is decoded by the signal decoding unit 21 through the skat connection terminal 20 and output to the switch unit 18.

Therefore, the conventional mono audio processing system outputs a recording channel to an external output terminal if the scrambled channel is a recording channel through the microcomputer 16 which generates a control signal for controlling the switch unit 17 or 18. If the channel being watched is a scrambled channel, the channel being watched is sent out to release the scrambled signal according to the presence or absence of a scrambled signal, and the unscrambled signal is recorded or listened as it is.

As described above, in the conventional technology, there is a problem in that two broadcast signals can be simultaneously received and hi-fi voice signals cannot be reproduced or recorded. Also, in the case of a stereo receiver having many switching channels, As the number of ports in the switching unit increases, wiring design and switching hardware become very complicated.

Accordingly, the present invention has been devised to solve the above-mentioned conventional problems, and the voice of a TV-serial to record stereo voice of another channel or the same channel as hi-fi while listening to stereo voice by simultaneously receiving two stereo broadcasts. It is an object of the present invention to provide a receiving apparatus and a control method thereof.

1 is a block diagram showing the configuration of a conventional TV voice receiver.

Figure 2 is a block diagram showing the configuration of the voice receiver of the present invention TV.

3 is a flowchart illustrating a control method of the apparatus for receiving a voice in FIG. 2;

*** Description of the symbols for the main parts of the drawings ***

100: antenna 101,102: tuner

103,104: band pass filter 105,106: SIF detector

107,108: Stereo Voice Detection Processor

109: output buffer 110: speaker

111: Hi-Fi Voice Processor 112: Hi-Fi Voice Head

113: mono voice head 114: microcomputer

The present invention for achieving the above object is a first, second tuner for outputting the high frequency signal received through the antenna of the intermediate frequency signal of each channel specified by the control signal; First and second band pass filters for passing only a sound intermediate frequency band of the output signals of the first and second tuners, respectively; First and second SIF detectors for detecting and outputting the sound intermediate frequency signals output from the first and second band pass filters, respectively; Stereo control of the output signal of the first S-F detector by the control signal, and the stored audio output signal, speaker voice selectively through the multiplexing switch of the voice detected signal, AV audio signal and reproduction audio signal A first stereo voice detection processor for outputting the output signal and the AV as a voice output signal; And a stereo voice detection process of the output signal of the second SIF detector according to the control signal, and optionally a multiplexing switch of the voice detected signal, the stored voice signal and the reproduced hi-fi voice signal. A second stereo voice detection processor for outputting the reproduced voice signal; A hi-fi voice processor for reproducing a voice signal through a hi-fi voice head or a mono voice head according to the control signal and outputting it as a reproduced voice signal or storing a hi-fi voice storage signal; It is characterized by consisting of a microcomputer for controlling the operation of the respective parts.

In addition, the present invention provides a first step of determining whether the currently set channel is the input of the Ave and operating in the Ave mode when the Ave is input; If the channel currently set in the first step is not an AV input, the broadcast signal received through the first and second tuners is output as a voice output signal by the speaker and the AV, respectively, and the broadcast signal received through the second tuner. Outputting a hi-fi voice storage signal and determining whether auto-ave is set on a current channel; A third step of performing a mode operation if auto-ave is performed, determining whether the received broadcast signal is a scrambled signal, and performing a scrambled mode operation if the received signal is a scrambled signal; When the operation of the third step is completed, when the current channel signal is being recorded and the channel switching signal, the broadcast signal received through the first tuner is output through the speaker, and after determining whether or not the channel being recorded is scrambled, Outputting a broadcast signal received through a second tuner as a hi-fi voice storage signal; A fifth step of determining whether the channel currently being viewed is the input of the input if the current channel signal is the recording and channel switching signal in the state where the auto-ave is not set; A sixth step of outputting the voice to the speaker when the AV is the input result of the determination in the fifth step; As a result of the determination of the fifth step, if the AV is not an input, the AV outputs the broadcast signal received through the first tuner as an audio output signal, and when the channel being watched is an auto-ave input of the scrambled channel, the AV inputs the audio input signal to the speaker. And a seventh step of outputting.

Hereinafter, with reference to the accompanying drawings, the operation and effect of an embodiment of the present invention will be described in detail.

FIG. 2 is a block diagram showing the configuration of a voice receiving apparatus of TV according to the present invention. As shown in FIG. 2, a high frequency signal received through an antenna 100 is an intermediate frequency of a channel respectively designated by a control signal I ² C. Tuners 101 and 102 for outputting signals; A band pass filter (103) (104) for passing only a sound intermediate frequency band among the output signals of the tuners (101) (102); An S-IF detector 105 for detecting and outputting the sound intermediate frequency signal output from the band pass filter 103; An SIF detector 106 for detecting and outputting the AM intermediate frequency signal output from the band pass filter 104; Stereo voice detection of the output signal of the SIF detector 105 by a control signal (I ² C), selectively processing the voice detected signal, AV audio signal and reproduction audio signal, and storing the stored audio output signal A stereo voice detection processor 107 for outputting the speaker voice output signal and the AV as a voice output signal; A stereo voice detection process is performed on the output signal of the SIF detector 106 by the control signal I ² C, and a hi-fi voice signal is selectively processed by processing the voice detected signal, the stored voice signal, and a hi-fi voice signal. And a second stereo voice detection processor 108 for outputting a reproduced voice signal; A hi-fi voice head 112 for reading a recorded hi-fi voice signal or storing a hi-fi voice record signal; A mono audio head 113 for reading the recorded mono audio signal or storing the mono audio recording signal; The control signal I ² C receives a voice signal through the hi-fi voice head 112 and the mono voice head 113 and outputs the voice signal to the stereo voice detection processor 108 or outputs the voice stored signal to the head. A hi-fi voice processor 111 for storing through 112 and 113; It will be described in detail with reference to the operation flow chart of Figure 3 attached to the operation process according to the present invention configured as a microcomputer 114 for controlling the operation of the respective parts.

First, under the control of the microcomputer 114, the tuner 101, 102 outputs the intermediate frequency signal of the high frequency signal of the designated channel through the antenna 100, respectively, and then the output of the tuner 101, 102. The S-F detectors 105 and 106 which receive the output signals of the band pass filters 103 and 104 which pass only the sound intermediate frequency band among the signals detect and output the AM and FM signals, respectively. do.

In this case, the microcomputer 114 checks whether the channel currently set is whether the input is an input (S2), and if the input is an input, the microcomputer 114 operates in the AV mode. That is, in the stereo voice detection processor 107, the AV receiver receives the audio input signal through the audio input port 13 and simultaneously outputs the audio input signal through the speaker audio output port 16 and the storage voice output port 15. The broadcast signal received through the tuner 101 is input through the input port 11 or the input port 12 to set the Ave to be output through the audio output port 17.

In addition, the stereo voice detection processor 108 receives the stored voice output signal of the stereo voice detection processor 107 through the input port 31 by the control signal I ² C of the microcomputer 114 and then hi-fi. It is set to be output through the voice storage output port 33. (S21)

Thereafter, the microcomputer 114 determines whether the current channel signal is in the recording mode and waits if the recording mode is not in the recording mode (S22), and checks whether the channel is switched in the recording mode (S23).

At this time, if there is no channel switching, and returns to the channel switching, the stereo voice detection processor 107 transmits the tuner (speaker) to the speaker voice output port 16 by the control signal I ² C of the microcomputer 114. The broadcast signal received through the speaker 110 is output by setting to output the broadcast signal received through the 101. (S24)

However, if the currently set channel is not the AV input, the microcomputer 114 receives the stereo voice detection processor 108 through the tuner 102 and receives the input through the input port 28 or the input port 29. The broadcast signal is output as a reproduced voice signal and a hi-fi voice stored signal through the output ports 30 and 33, respectively, and the stereo voice detection processor 107 connects the tuner 101 to the speaker voice output port 16. It outputs the broadcast signal received through the speaker 110 to the outside and receives the reproduction voice signal output from the output port 30 of the stereo voice detection processor 108 through the input port 14 Ave outputs the audio output signal through the output port 17 (S3).

Then, the current input channel checks whether the auto save is set (S4), and if the auto save is set, the auto save mode is performed. That is, the stereo voice detection processor 107 outputs the audio input signal through the storage voice output port 15 as a stored voice output signal, and outputs the reproduced voice signal output from the stereo voice detection processor 108. Set to output the audio as a voice output signal through (17) (S5).

The microcomputer 114 checks whether the broadcast signal is scrambled (S6) and performs a scramble mode operation when scrambled. That is, the stereo voice detection processor 107 is set so that the AV input of the AV input via the audio input port 13 is output through the speaker audio output port 16 and the storage audio output port 15, and the stereo is input. The voice detection processor 108 sets the stored voice output signal output from the stereo voice detection processor 107 to output a hi-fi voice signal through the output port 33 (S7).

If it is not scrambled or if the scramble operation is completed, the microcomputer 114 determines whether or not the current channel is recorded.

As a result, if the current channel is not in the recording state, the microcomputer 114 performs another command, and during recording, the microcomputer 114 determines whether the channel is switched (S9). Outputs the broadcast signal received through the tuner 101 to the speaker 110 by the control signal I ² C of the microcomputer 114.

The microcomputer 114 determines whether the channel being recorded is scrambled (S11), and if it is a scrambled channel, performs another command. If the scrambled channel is not, the stereo voice detection processor 107 performs the tuner 101. The broadcast signal received through the output port 16 to the speaker 110 through the output, the stereo voice detection processor 108 outputs the broadcast signal received through the tuner 102 through the output port 33 Output as a hi-fi audio signal (S12).

In addition, when the channel currently being watched is not set to auto save, the microcomputer 114 determines whether the current channel is recorded (S13), and if there is a recording state, determines whether the channel is switched (S14). If it is the channel switched signal, it is determined whether the current channel is Ave (S15).

If the channel currently being viewed is Ave, the stereo voice detection processor 107 sets the Ave to output a voice input signal to the speaker 110 through the output port 16 and performs another command. )

However, if the channel currently being viewed is not the AV input, the stereo voice detection processor 107 outputs the broadcast signal received through the tuner 101 through the AV output port 17. (S17)

The microcomputer 114 determines whether the switched channel is set to auto save (S18) and executes another command if the auto save is not set. If the auto save is set, the microcomputer 114 scrambles the currently input signal. In operation S19, the controller 120 determines whether it is in the scrambled state and performs another command.

However, in the scrambled state, the stereo voice detection processor 107 sets the AV to output the voice input signal to the speaker 110 through the output port 16 and performs another command.

Accordingly, the microcomputer 114 controls the switching operation according to the following table with the far-plexing switch built in the stereo voice detection processor 107 (108) according to whether the current channel is input or scrambled.

As described in detail above, the present invention incorporates a multiplexing switch that is switched under the control of a microcomputer in a plurality of stereo voice detection processors, thereby simultaneously receiving and listening to two stereo broadcasts while hi-fi other channels or the same channel. In this case, the scrambled broadcast signal is released and output, and the unscrambled signal is recorded or listened as it is.

Claims (5)

First and second tuners for outputting a high frequency signal received through an antenna to an intermediate frequency signal of a channel respectively designated by a control signal; First and second band pass filters for passing only a sound intermediate frequency band of the output signals of the first and second tuners, respectively; First and second SIF detectors for detecting and outputting the sound intermediate frequency signals output from the first and second band pass filters, respectively; Stereo control of the output signal of the first S-F detector by the control signal, and the stored audio output signal, speaker voice selectively through the multiplexing switch of the voice detected signal, AV audio signal and reproduction audio signal A first stereo voice detection processor for outputting the output signal and the AV as a voice output signal; And a stereo voice detection process of the output signal of the second SIF detector according to the control signal, and optionally a multiplexing switch of the voice detected signal, the stored voice signal and the reproduced hi-fi voice signal. A second stereo voice detection processor for outputting the reproduced voice signal; A hi-fi voice processor for reproducing a voice signal through a hi-fi voice head or a mono voice head according to the control signal and outputting it as a reproduced voice signal or storing a hi-fi voice storage signal; A TV receiver's voice receiving device, characterized in that it is composed of a microcomputer for controlling the operation of each unit. Determining whether the currently set channel is an input, and if the input is an input, operating in the mode; If the channel currently set in the first step is not the AV input, the broadcast signal received through the first and second tuners is output as a voice output signal by the speaker and the AV, respectively, and the broadcast signal received through the second tuner. Outputting a hi-fi voice storage signal and determining whether auto-ave is set on a current channel; A third step of performing a mode operation if auto-ave is performed, determining whether the received broadcast signal is a scrambled signal, and performing a scrambled mode operation if the received signal is a scrambled signal; When the operation of the third step is completed, when the current channel signal is being recorded and the channel switching signal, the broadcast signal received through the first tuner is output through the speaker, and after determining whether or not the channel being recorded is scrambled, Outputting a broadcast signal received through the second tuner as a hi-fi voice storage signal; A fifth step of determining whether the channel currently being viewed is the input of the input if the current channel signal is the recording and channel switching signal in the state where the auto-ave is not set; A sixth step of outputting the voice to the speaker when the AV is the input result of the determination in the fifth step; If the result of the determination of the fifth step is not the input, if the output of the broadcast signal received through the first tuner as a voice output signal, and if the channel currently being watched is scrambled auto-ave input of the audio input signal to the speaker And a seventh step of outputting the control method of the voice receiver of the TV. The method of claim 2, wherein the Aive mode operation comprises: a first step of outputting a broadcast signal received through the first tuner as a voice output signal, and outputting a voice input signal to the speaker and outputting a hi-fi voice storage signal; ; Thereafter, if the current channel signal is being recorded and the channel switching signal, a second step of outputting the broadcast signal received through the first tuner through the speaker, characterized in that the control method of the TV receiver. The method of claim 2, wherein the auto-ave mode operation comprises the steps of outputting a broadcast signal received through the second tuner as a voice output signal, and outputting a voice input signal as a stored voice signal. Control method of the voice receiving device. The control method of claim 2, wherein the scramble mode operation comprises outputting a voice input signal to a speaker and outputting the voice input signal to a speaker.