KR0169697B1 - Channel switching apparatus for television using audio signal recognition - Google Patents

Abstract

The present invention relates to a channel switching apparatus for television by voice recognition, the configuration of which is to reproduce the voice signal contained in the broadcast signal of the channel tuned by the tuner means 12 of the first and second tuner methods. A television comprising a processing means (14, 16, 18) and image processing means (20, 22, 24) for reproducing a video signal included in the broadcast signal, wherein the audio processing means (14, 16, 18) Audio recording means 36 for recording the audio signal to be reproduced in the standard pattern with the standard pattern, the audio signal recorded in the standard pattern with the audio recording means 36, and the audio processing means 14, 16 and 18. The voice recognition means 34 for processing the voice signal output from the voice signal output from the voice recognition means 34, the output path of the voice signal output from the voice processing means (14, 16, 18) the voice recognition means (34) or the audio recording means 36 side The control function setting means 28 and the control function setting means 28, which are provided with a switching means 38 for switching to the < Desc / Clms Page number 12 > mode, a function key 28a, 28b for setting the voice recording mode or the voice recognition mode. Control to set the switching path of the switching means 38 according to the setting of the control function mode and control the operation of the voice recognition means 34 or the voice recording means 36 in response to the switching control. And means 30 to record a part of a signal music or drama theme song of a broadcast program according to a user's need, and then select a channel tuned by the first tuner when the voice recognition mode is set. Broadcasts the video / audio output normally while the second tuner sequentially switches the channels that can be watched, while the same voice as the recorded voice is recognized. Note that if the search meurosseo to automatically switching the channel has the effect of the user and to enable a search for the desired local broadcast program.

Description

TV channel switching device by voice recognition

1 is a block diagram of a channel switching apparatus for television by voice recognition according to the present invention.

FIG. 2 is a detailed block diagram of the voice recognition unit and voice recorder shown in FIG.

* Explanation of symbols for main parts of the drawings

10 antenna 12 tuner section

12a, 12b: first and second tuner 14: voice IF module

16: voice signal processor 18: voice amplifier

20: Image IF Module 22: Image Multi Processor

24: video amplifier 28: control function setting unit

30: control unit 34: voice recognition unit

36: voice recorder 38: switching unit

The present invention relates to a channel switching apparatus for television by voice recognition, and more particularly, to record a part of a signal music or drama theme song of a specific broadcast program in a two-tuner television having a PIP function, When the specific key is set, the broadcast of the channel tuned by the first tuner is normally outputted with video / audio, and the channel tuned to the broadcast viewable channel is sequentially switched by the second tuner so that the same voice as the recorded voice is recognized. The present invention relates to a channel switching apparatus for television by voice recognition, which automatically switches channels when found.

At present, the number of wired broadcasting stations that transmit broadcast signals only to a specific subscriber via a dedicated cable is gradually increasing in addition to a wireless broadcasting station that transmits a broadcast signal theory via a medium of air for a television that reproduces a broadcast program transmitted from a broadcasting station. As the number of such stations increases, the viewer spends a considerable amount of time in the tuning of a broadcast channel that broadcasts the desired broadcast program.

In this regard, the channel can be tuned by simply operating the channel up / down button while executing the automatic search and storing in the memory means while sequentially applying the tuning data to all the broadcast channels that can be tuned. The method also applies. Typically, such a channel search is determined as a memory object for a channel for which a synchronization signal is detected based on whether or not a synchronization signal of a video signal included in a broadcast signal tuned in a channel corresponding to the channel data is detected.

On the other hand, in a TV with a 2-tuner for multi-screen processing by the picture-in-picture (PIP) function, the second tuner keeps the current channel tuned by the first tuner in the broadcast channel search mode. A tuner has been proposed to display a channel on which a video synchronization signal is detected as a viewable channel by sequentially applying tuning data for channel search.

However, in the two-tuner television having the general PIP function as described above, the channel search is possible, although the sequential search of the viewable channel in which the image synchronization signal is detected is not possible until the local search of each program unit. As a reality, when there is a program that a user must watch, it is cumbersome to search the broadcasting time zone and the channel of the program in advance and search for the channel and time that the program is broadcast according to the user and intention.

The present invention has been made in view of the above, and an object thereof is to record a part of a signal music or a drama theme song of a specific broadcast program in a two-tuner television having a PIP function, and then When the channel tuned by the first tuner is set to the video / audio output normally, and the channel tuned to the broadcast viewable channel is sequentially searched by the second tuner, the channel that recognizes the same voice as the recorded voice is searched for. It is an object of the present invention to provide a channel switching apparatus of a television by voice recognition.

In order to achieve the above object, the channel switching apparatus of a television by voice recognition according to a preferred embodiment of the present invention comprises a voice signal included in a broadcast signal of a channel tuned by a tuner means of a first and a second tuner method. A television comprising audio processing means for reproducing a video signal and video processing means for reproducing a video signal included in the broadcast signal, wherein the audio signal is recorded in a standard pattern to record the audio signal reproduced and processed by the audio processing means. A voice recognition means for inputting the means, a voice signal recorded in a standard pattern on the voice recording means, and a voice signal output from the voice processing means, and analyzing each other for equality, and outputting from the voice processing means. Switching means, voice recording mode or voice recognition mode for switching the output path of the voice signal to be Control function setting means for setting and controlling the switching path of the switching means according to the setting of the control function mode through the control function setting means, and in response to the switching control, the voice recognition means or the voice recording means It characterized in that it comprises a control means for controlling the operation.

The sound recording means includes a preamplification part which is routed by the path switching means and amplifies the sound signal provided from the sound processing means so as to be easily processed by a subsequent circuit, and the sound signal from the preamplification part. A low pass filter for blocking high frequency components of the sample, a sample / hold unit for sampling / holding the voice signal passing through the low pass filter at a predetermined main interval, and an analog conversion unit for digitally converting the signal held in the sample / hold unit for standard patterning And a digital controller, a memory controller for recording the digital voice signal converted from the analog / digital converter into a voice data memory unit, a voice data memory unit in which a digital voice signal is recorded by the memory controller, and the sample / hold. A clock signal of a predetermined period to the analog and digital / digital converter and the memory controller. Providing at the same time is configured to include a clock generating unit.

The voice recognition means includes a voice sample processing unit for sampling and outputting a voice signal determined as the recognition path by the path switching unit, and matching the signal from the voice sample processing unit with voice data stored in the voice data memory unit. It comprises a voice analysis processing unit for analyzing the mutual identity whether applied to the control means.

Hereinafter, a channel switching apparatus of a television by voice recognition according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of a channel switching apparatus of a television by voice recognition according to the present invention, where reference numeral 10 denotes an antenna for receiving a broadcast signal from a broadcasting station transmitting airwaves, and 12 is a controller to be described later. A tuner section for performing channel tuning on the basis of the tuning data VT1 / VT2 provided under control of 30, the tuner section 12 having a channel up / down button provided in the control function setting section 28. FIG. Or a channel for performing a normal PIP function with the first tuner 12a which performs channel tuning by the tuning data VT1 applied under the control of the control unit 30 to the channel input by the 10-key. And a second tuner 12b which sequentially receives the preset data VT2 stored in the channel data storage 32 under the control of the station and the controller 30 and searches for a channel that can be viewed at the present time. do.

14, 16, and 18 are voice processing means for processing a voice signal included in a broadcast signal tuned in a channel tuned by the first or second tuner 12a or 12b of the tuner 12. IF module detects the voice signal included in the broadcast signal of the channel tuned by the first and second tuners 12a and 12b of the tuner 12, and converts and amplifies the intermediate frequency first and second voice IF modules. The voice multiplexer 16, which is configured as shown in FIG. 16, is a voice signal set by, for example, a volume control button of the control function setting unit 28, with respect to the voice signal provided by the voice IF module 14 (14a, 14b). When the level adjustment or the voice multiplexing mode is set, the control signal CA provided from the control unit 30 performs the volume adjustment, the voice surround processing, or the voice multiplexing process. Note, hatching processed by the processor 16 The audio signal on the surface is amplified with a constant amplification to be provided to the audio signal Aout applied to the main speaker side Aout1 or the buoyphone terminal side Aout2 as the sound output device.

In FIG. 1, reference numerals 20, 22, and 24 denote video signals included in a broadcast signal tuned in a channel tuned by the first or second tuner 12a or 12b of the tuner 12. As an image processing means, an image IF module indicated by 20 detects an image signal included in a broadcast signal of a channel tuned by the first and second tuners 12a and 12b of the tuner unit 12, and converts and amplifies an intermediate frequency. And first and second image IF modules 20a and 20b. An image multiple processing unit denoted by 22 is an image multiple processing under an image multiple mode (PIP function) input from the control function setting unit 28 to the image signal IF converted by the first and second image IF modules 20a and 20b. Alternatively, the controller 30 performs a process related to adjustment of luminance / contrast according to the control signal CV provided from the controller 30, and the image amplifier 24 denotes an image signal processed by the image multiple processor 22 at a predetermined amplification degree. An image amplifying unit which amplifies and provides the CRT apparatus 26 as an image output apparatus in which display of the sub-screen 26a by the PIP function is assumed to be reproduced.

Reference numeral 28 denotes a control function setting unit for inputting a control signal relating to the overall function of the television. The control signal input unit 28 according to the present invention is a voice recording key 28a for setting a voice recording mode and a voice recognition mode. And a voice recognition key 28b, which indicates a control function setting unit, and reference numeral 30 sets a switching path of the switching unit 38, which will be described later, in accordance with the setting of the control function mode through the control function setting unit. Control unit for controlling the operation of the voice recognition unit 34 or the voice recording unit 36 to be described later in response to the switching control, and reference numeral 32 denotes a tuner data for all channels allocated to the television. Channel data storage.

In the figure, reference numerals 34 and 36 denote voice recording units 36 for recording standardized voice signals reproduced by the voice processing means 14, 16, and 18, and standard patterns in the voice recording units 36. And a voice recognition unit 34 for inputting and processing the voice signal recorded and the voice signal output from the voice processing means 14, 16 and 18.

Here, the audio recording unit 36 includes a preamplifier 36a, a low pass filter 36b, a sample / hold unit 36c, an analog / digital converter unit 36d, and a memory controller as shown in FIG. 36e, the voice data memory 36f, and the clock generator 36g. The configuration of the voice recorder 36 will be described in more detail with reference to FIG.

In FIG. 2, the preamplifier 36a is easy to process the audio signal from the voice processing means 14, 16, 18 applied through the path switching unit 38 and in the subsequent path. Amplify.

The low pass filter (LPF) 36b removes unnecessary high pass components (eg, reflection noise) from the audio signal output from the preamplifier 36a.

The sample / hold unit 36c samples (samples) the analog crest value for each period of the audio signal passing through the low pass filter 36b according to a preset sampling frequency, and then performs an A / D conversion unit 36d on the rear stage. To hold each analog crest value with a capacitor.

The analog / digital conversion unit (A / D conversion unit) 36d converts the analog crest value held by the sample / hold unit 36c into a PCM (Pulse Code Modulation) and converts it into a serial digital signal. Output

The memory controller 36e uses the digital voice signal converted from the analog / digital converter 36d as a standard pattern according to the memory control signal (CM: Control Memory) of the controller 30. A memory control section for writing to the data is shown.

The voice data memory section 36f represents a voice data memory section in which a digital voice signal is recorded under the control of the memory control section 36e.

The clock generator 36g represents a clock generator for simultaneously providing a clock signal of a predetermined period to the sample / hold unit 36c, the analog / digital converter 36d, and the memory controller 36e.

In addition, the voice recognition unit 34 is composed of a voice sample extraction unit 34a and a voice analysis processing unit 34b as shown in FIG. 2, and the structure of the voice recognition unit 34 is shown in FIG. When described in detail with reference to as follows.

In FIG. 2, the voice sampling extractor 34a outputs an audio signal from the voice processing means 14, 16, and 18 through the path switching unit 38, and an amplifier (not shown) and a programmable attenuator (not shown). After the level is adjusted with a low pass filter (not shown), the band is limited and then, for example, digitally sampled at 10 KHz and 8 bits with an AD converter having a predetermined sampling period, and then output as serial digital audio data.

The voice analysis processing section 34b is a standard pattern of voice data recorded on the voice data memory 36f with respect to the serial digital voice data input from the voice sampling extracting section 34a (i.e., exactly the same). Although it is not possible, for example, a pattern equal to or greater than 90% is analyzed and the result is transmitted to the controller 30.

In addition, in FIG. 1, the path switching unit 38 transmits the output path of the voice signal output from the voice processing means 14, 16, 18 to the switching control signal (CS) of the control unit 30. Accordingly, the switching unit for switching to the voice recognition unit 34 or the voice recording unit 36 side.

Next, the operation of the channel switching apparatus of the television by the voice recognition according to the present invention configured as described above will be described in detail.

First, when the voice recording mode is set through the voice recording key 28a according to the present invention provided in the control function setting unit 28, the controller 30 recognizes the setting of the voice recording mode according to the key input and switches. The switching control signal CS is applied to the unit 38 to control the switching path of the switching unit 38 to be applied to the preamplifier 36a side of the audio recording unit 36. At this time, the audio signal Aout1 or Aout2 outputted to the speaker (not shown) of the television after being processed through the voice processing means 14, 16 and 18 is a low range from the preamplifier 36a of the voice recorder 36. The signal is processed through the filter 36b, the sample / hold unit 36c, and the A / D converter 36d in that order, and then under the control of the memory control unit 36e through the memory control signal CM of the controller 30. It is recorded and stored in the voice data memory 36f of the voice recorder 36.

Further, in the voice recording mode as described above, the voice recording key 28a is again recorded in the voice data memory 36f of the voice recording section 36 as part of voice recording of the signal music or drama theme song of the broadcast program as required by the user. When the voice recording mode is released and the voice recognition mode is set through the voice recognition key 28b according to the present invention, the controller 30 recognizes the setting of the voice recognition mode according to the key input. Then, the switching control signal CS is applied to the switching unit 38 to control the switching path of the switching unit 38 to be applied to the voice recognition unit 34. Accordingly, by applying the tuning signal VT1 to the first tuner 12a to maintain the current tuning state, the video / audio output is normally performed through the main speaker and the CRT of the television, and by the second tuner 12b. The voice signal of the broadcast channel sequentially tuned by the second tuner 12b is sequentially voiced through the voice processing means 14, 16 and 18 while sequentially switching the broadcast viewable channel and the voice processed voice signal is converted. The voice analysis unit 34b of the voice recognition unit 34 is provided to the voice analysis unit 34b of the voice recognition unit 34 via the switching unit 38. Therefore, the voice signal stored in the voice data memory 36f of the voice recorder 36 is provided, so that the recorded voice signal and the voice signal sequentially tuned and provided by the second tuner 12b are the same. If the same audio signal and the audio signal recorded after analyzing whether the service control unit 30 recognizes this gives hagoseo by automatically switching to the channel is provided with the sound signal.

As described above, according to the channel switching apparatus of the television according to the voice recognition according to the present invention, a part of the signal music or drama theme songs of the broadcast program is recorded as audio according to the user's needs, and then the voice recognition mode is set. The broadcast of the channel tuned by the first tuner is normally outputted as a video / audio, and the channel is automatically searched by the second tuner when the channel that recognizes the same voice as the recorded voice is searched while sequentially switching channels that can be viewed. By switching, it is possible to search for a local broadcast program desired by the user.

Claims (3)

Audio processing means (14, 16, 18) for reproducing the audio signal included in the broadcast signal of the channel tuned by the first and second tuner means 12 and the video signal included in the broadcast signal. In a television equipped with image processing means (20, 22, 24) for reproducing, audio recording means (36) for recording audio signals reproduced and processed by the sound processing means (14, 16, 18) in a standard pattern. ) And a voice to input and process a voice signal recorded in a standard pattern on the voice recording means 36 and a voice signal output from the voice processing means (14, 16, 18) to analyze whether or not they are the same. Switching means 38 for switching the output path of the voice signal output from the recognition means 34 and the voice processing means 14, 16, 18 to the voice recognition means 34 or the voice recording means 36 side. ), Voice recording mode or Voice recognition mode The control function setting means 28 having one function key 28a, 28b and the switching path of the switching means 38 are set in accordance with the setting of the control function mode via the control function setting means 28. And control means (30) for controlling and controlling the operation of the voice recognition means (34) or the voice recording means (36) in response to the switching control. Device. The audio recording means (36) according to claim 1, wherein the audio recording means (36) is routed by the switching means (38) and provided through the audio processing means (14, 16, 18) for signal processing in subsequent circuits. Pre-amplification section 36a for easy amplification, low frequency filter 36b for blocking high frequency components in the audio signal from the preamplifying section 36a, and a predetermined period of the audio signal passing through the low-pass filter 36b. Sample / hold unit 36c for sampling / holding at intervals, analog / digital conversion unit 36d for digitally converting the signal held in the sample / hold unit 36c for standard patterning, and the analog / digital conversion unit A memory controller 36e for recording the digital voice signal converted from 36d into the voice data memory unit 36f, a voice data memory unit 36f in which the digital voice signal is recorded by the memory controller 36e, and Phase with the sample / hold section 36c Channel switching device of a television according to the speech recognition, characterized in that configured to include a click generation unit (36g) for providing a clock signal of a predetermined period at the same time, the analog / digital conversion unit (36d) and said memory control unit (36e). The voice sample processing unit (34a) according to claim 1, wherein the voice recognition unit (34) samples and outputs a voice signal which is determined by the switching unit (38) as a recognition path and provided. And a speech analysis processing section 34b which matches the speech signal from the speech data stored in the speech data memory section 36f with the speech data stored in the speech data memory section 36f, and analyzes the mutual identification for the same. A channel switching device for television by voice recognition.