KR20070021083A - Apparatus and method for processing informational signal - Google Patents

Abstract

An apparatus for processing an information signal comprising a first output unit for receiving an information signal, executing a first process on the information signal, and outputting the processed information signal. The apparatus also includes a second processing unit disposed at the rear end of the first processing unit, for receiving the processed information signal and executing a second process on the processed information signal. The apparatus further includes a transmitting device for transmitting meta-information corresponding to each predetermined period of the information signal from the first processing unit to the second processing unit. The processing at the second processing unit is controlled based on the meta information transmitted by the transmitting device.

Information, signal, processing, method, device, meta information

Description

Apparatus and method for processing information signals {APPARATUS AND METHOD FOR PROCESSING INFORMATIONAL SIGNAL}

1 is a block diagram showing the configuration of an information signal processing apparatus as a first embodiment of the present invention.

2 is a block diagram showing a detailed configuration of an input control unit.

3 is a block diagram showing a detailed configuration of an output control unit.

4 is a block diagram showing the configuration of an information signal processing apparatus as a second embodiment of the present invention.

5 is a block diagram showing a detailed configuration of an extended DRC processing unit.

6 is a diagram illustrating an additional state of a field number in a video signal.

7 is a diagram illustrating a configuration of additional information.

8 is a block diagram showing the detailed configuration of an output control processing unit.

Fig. 9 is a block diagram showing the configuration of the information signal processing apparatus as the third embodiment of the present invention.

10 is a block diagram showing the configuration of an input control unit and a voice input control unit.

11 is a block diagram showing the configuration of an output control unit and an audio output control unit.

Fig. 12 is a block diagram showing the construction of an information signal processing apparatus as a fourth embodiment of the present invention.

13 is a block diagram showing an additional state of a field number in an audio signal.

14 is a block diagram showing the detailed configuration of an extended DRC processing unit and a voice control unit.

15 is a block diagram showing a detailed configuration of an output control processor and an audio output controller.

Fig. 16 is a block diagram showing the construction of an information signal processing apparatus as a fifth embodiment of the present invention.

17 is a block diagram showing a detailed configuration of an extended DRC processing unit and a voice input control unit.

18 is a block diagram showing a detailed configuration of an output control processor and an audio output controller.

Cross Reference of Related Application

The present invention includes an object related to Japanese Patent Application No. 2005-236794, filed with the Japan Patent Office on August 17, 2005, the entire contents of which are incorporated herein by reference.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a process for processing an information signal suitable for use when sequentially performing a plurality of processes on an information signal such as an image signal or an audio signal.

Meta-information has been used in connection with horizontal and vertical synchronization signals, copy protection signals, closed captioning, and the like. Among these, the synchronization signal used for the synchronization control operation is a synchronization signal for displaying a video and does not have information on each field. Therefore, the synchronization signal lacks information for use in the control operation of each field.

When the time required for processing the video signal and the time required for processing the audio signal are processed in different ways, a time interval between the video generated by the video signal and the audio generated by the audio signal, so-called lip-sync ( lip synchronization fails.

For example, Japanese Patent Laid-Open No. 2004-15553 discloses a technique for adjusting this lip sync. According to the technique disclosed in this publication, when a content-receiver receives and decodes content from a server on an encoder side, the content is converted into a video packet and an audio packet constituting the content. After separation, each of these packets is decrypted. The video frame and the audio frame are then output based on the video time stamp added to the video packet and the audio time stamp added to the audio packet. In this way, the video and audio are output at the same timing as each other.

The technique disclosed in the above publication utilizes a type stamp added to the video packet and the audio packet at the encoder side. Therefore, this technique is not applicable when the above-described type stamp is not added.

In addition, there are some cases where the time required for processing a video signal varies depending on the type of processing. Since there is no device that transmits field information at a later stage, as a method of preventing the image from being disturbed, the processing period required as a whole is estimated in advance, and the estimated maximum is blanked. Can be set to time.

An apparatus for processing an information signal which enables the second processing unit to execute good processing when executing the first processing in the first processing unit and executing the second processing in the second processing unit arranged behind the first processing unit; It is desirable to provide a method.

According to one embodiment of the present invention, an apparatus and method for processing an information signal are provided. The apparatus includes a first processing section for receiving an information signal, executing a first process on the information signal, and outputting the processed information signal. The apparatus also includes a second processing unit disposed at the rear end of the first processing unit, for receiving the processed information signal and executing a second process on the processed information signal. The apparatus further includes a transmitting device for transmitting meta-information corresponding to each predetermined predetermined period of the information signal from the first processing unit to the second processing unit. The processing at the second processing unit is controlled based on the meta information transmitted by the transmitting device.

According to another embodiment of the present invention, there is provided a method of processing an information signal, in which a first process is executed in a first processing unit, and a second process is executed in a second processing unit disposed behind the first processing unit. The method includes transmitting meta information corresponding to each predetermined period of the information signal from the first processing unit to the second processing unit, and based on the transmitted meta information, processing in the second processing unit. Controlling. Such meta information may be transmitted in addition to the information signal.

As described above, the first processing unit Meta information corresponding to each predetermined period of the information signal is transmitted from the first processing unit to the second processing unit. Since the second control section controls the processing based on the transmitted meta information, good processing can be executed.

For example, additional information which is meta information is generated for each predetermined period of the information signal output from the first processing unit, and the additional information is transmitted to the second processing unit via the transmission path. The second processing unit controls the processing for each of the predetermined periods of time based on this additional information. In this case, for example, the additional information includes signal type information indicating whether the information signal received by the first processing unit is a video signal or a non-video signal. Then, the second processor outputs the received information signal when the signal type information indicates the video signal, while outputting a blanking signal when the signal type information indicates the non-video signal. As a result, blanking can be ensured in response to the non-image signal.

For example, the first processing unit outputs the processed information signal to which an identifier is added every predetermined period. At the same time, the additional information generator generates meta information as additional information including an identifier for each of a predetermined period of the processed information signal, and this meta information is additional information and information is transmitted through the transmission path. In the second processing unit, processing for the information signal of the predetermined period in which the predetermined identifier is separated is controlled based on the additional information including the predetermined identifier among the received additional information. When no identifier is added to the information signal input to the first processing unit, different identifiers are generated in sequence every predetermined period, and this generated identifier is added to the processed signal every predetermined period of the signal after processing. This obtains a processing signal to which an identifier has been added.

In this case, for example, the additional information includes signal type information indicating whether the received information signal is a video signal or a non-video signal together with the identifier. The second processing unit outputs the received information signal when the signal type information indicates a video signal, and outputs a blanking signal when the signal type information indicates a non-video signal. As a result, blanking can be ensured in response to the non-image signal.

For example, the image processing unit executes a predetermined process on the received image signal. An image output processor disposed at the rear end of the image processor performs output processing on the processed video signal. The first identifier as meta information corresponding to each predetermined period of the video signal output from the video processor is transmitted from the video processor to the video output processor. The audio output processing unit receives an audio signal corresponding to the video signal and executes an output process on the audio signal. A second identifier of the audio signal received by the audio output processing unit is generated, which is the same as the first identifier generated for each predetermined period of the video signal corresponding to each of the predetermined periods of the video signal. This second identifier is sent to the audio output processing unit.

The video output processor then sequentially outputs video signals of a predetermined period corresponding to the first identifier. The audio output processing unit outputs the audio signal corresponding to each predetermined period of the video signal output from the video output processing unit based on the first identifier and the second identifier. As a result, the lip sync is accurately adjusted in synchronization with the video signal and the audio signal.

For example, the image processor outputs the processed information signal to which the first identifier is added every predetermined period. An image output processing unit arranged at the rear end of the image processing unit performs an output process on the received video signal. The audio processing unit outputs an audio signal corresponding to the video signal received by the video processing unit, and corresponds to each predetermined period of the video signal, which is the same as the first identifier added for each predetermined period of the video signal. The second identifier is added. The audio output processing unit disposed at the rear end of the audio processing unit executes the output processing on the received audio signal. The video output processing unit sequentially outputs the video signal for each predetermined period corresponding to the first identifier separated from the video signal. The audio output processor outputs audio signals corresponding to respective predetermined periods of the video signal output from the video output processor based on the first identifier separated from the video signal and the second identifier separated from the audio signal. As a result, the video signal and the audio signal are synchronized with each other and the lip sync is precisely adjusted.

For example, the image processor outputs the processed information signal to which the first identifier is added every predetermined period. An image output processing unit arranged at the rear end of the image processing unit performs an output process on the received video signal. The audio output processor receives an audio signal corresponding to the video signal and executes an output process on the received audio signal. The second identifier of the audio signal received by the audio output processor is generated in the same manner as the first identifier generated for each of the predetermined periods of the video signal, corresponding to each of the predetermined periods of the video signal. This second identifier is sent to the audio output processing unit. The image output processor sequentially outputs the image signal at predetermined periods corresponding to the first identifier separated from the image signal. The audio output processor outputs an audio signal corresponding to each of a predetermined period of the video signal output from the video output processor based on the first identifier separated from the video signal and the received second identifier.

As a result, the video signal and the audio signal are synchronized with each other so that the lip sync is accurately adjusted.

At the conclusion of this specification, the subject matter of the present invention is referred to and claimed directly. However, one of ordinary skill in the art, having read the remainder of the specification in light of the accompanying drawings in which like elements have the same reference numerals, best understands both the construction and method of operation of the present invention, together with the additional advantages and objects of the present invention. I can understand.

A first embodiment of the present invention will be described. 1 shows a configuration of an information signal processing apparatus 100 for processing an information signal as a first embodiment of the present invention.

The information signal processing apparatus 100 includes a digital reality creation (DRC) processing unit 101, an input control unit 102, a noise reduction processing unit 103, an output processing unit 104, an output control unit 105, and a display 106. , And a bus 107.

The DRC processing unit 101 constitutes a first processing unit, receives a video signal SVin, and executes a DRC process (high definition process) on the received video signal SVin. For example, the DRC processing unit 101 converts an SD (Standard Definition) signal, which is an input video signal SVin, into a High Definition Television (HD) signal, and outputs the acquired HD signal as an output image signal.

In this case, when acquiring pixel data around a target position in the HD signal, for example, a plurality of items of pixel data located around the target position in the HD signal are extracted from the SD signal. Based on the plurality of items of pixel data, the class to which the pixel data of the target position in the HD signal belongs is detected. Then, using coefficient data of an estimation equation corresponding to this class, pixel data of a target position in the HD signal is obtained based on this estimation equation (see Japanese Laid-Open Patent Publication No. 2001-238185). . This allows the user to freely adjust the resolution of the HD signal. At this time, the coefficient data of the estimation equation corresponds to a volume value of the resolution axis manipulated by the user.

The noise reduction processing unit 103 receives a video signal output from the DRC processing unit 101 and performs a process of reducing noise with respect to the video signal. The output processing part 104 comprises a 2nd processing part, and performs an output process with respect to the video signal output from the noise reduction processing part 103. As shown in FIG. The display 106 is comprised of display elements, such as an LCD (Liquid Crystal Display), and displays the image produced | generated by the video signal output output from the output processing part 104. As shown in FIG.

The input control unit 102 generates additional information Iad as meta information for each predetermined period of time, for example, for each field of the video signal output from the DRC processing unit 101, and transmits the additional information Iad to the bus 107. do. This additional information Iad includes signal type information indicating whether the signal is a video signal or a non-video signal, and a field number as an identifier. Here, the input control unit 102 and the bus 107 together constitute a transmitting device of the additional information Iad.

The output control part 105 acquires the additional information Iad transmitted via the bus 107, and controls the operation of the output processing part 104 based on this additional information Iad. Based on the signal type information included in the additional information Iad, the output processing unit 104 is controlled to output the input signal when the input signal is a video signal, and a blanking signal instead of the input signal when the input signal is a non-video signal. It is controlled to output.

The detailed structure of the input control part 102 is demonstrated. 2 shows a detailed configuration of the input control unit 102.

The input control unit 102 includes a video signal determination unit 121, a field number generation unit 122, an additional information writing processing unit 123, a first-in first-out unit 124, and an additional information reading processing unit ( 125).

The video signal determination unit 121, based on the synchronization signal SYNCa extracted from the input video signal SVin supplied from the DRC processing unit 101 (see Fig. 1), input signal is a video signal for each field period. It determines whether or not the signal is a non-video signal, and outputs signal type information as a result of the determination.

In this case, the video signal determination unit 121 basically determines that the input signal is a video signal in a field period with the synchronization signal SYNCa, and determines that the input signal is a non-video signal in other field periods. However, there may be a case where the DRC processing unit 101 executes a process for outputting a non-video signal for two field periods after the first field of the input video signal SVin is input. In this case, the video signal determination unit 121 replaces the signal type of the two field periods with the non-video signal and outputs signal type information.

The field number generation unit 122 generates field numbers sequentially incremented for each field period in accordance with the synchronization signal SYNCa supplied from the DRC processing unit 101 (see Fig. 1).

The additional information writing processing unit 123 combines the signal type information generated by the video signal determination unit 121 and the field number generated by the field number generation unit 122 into additional information, and adds the additional information for each field period. Write to FIFO section 124. The additional information reading processing unit 125 reads the additional information Iad from the FIFO unit 124 in accordance with the synchronization signal SYNCb synchronized with the output video signal supplied from the DRC processing unit 101 (see Fig. 1). 107).

Here, the size of the FIFO unit 124 depends on the processing time of the DRC processing unit 101. That is, the FIFO unit (Add) Iad corresponding to each field period of the output video signal of the DRC processing unit 101 is sent from the additional information reading processing unit 125 to the bus 107 within each field period of the output video signal. 124 is set.

The operation of the input control unit 102 will be described below.

The video signal determination unit 121 receives the synchronization signal SYNCa separated from the input video signal SVin from the DRC processing unit 101. The video signal determination unit 121 determines whether the input signal of the DRC processing unit 101 is a video signal or a non-video signal for each field period in accordance with this synchronization signal SYNCa, and generates signal type information. In addition, the field number generator 122 receives the synchronization signal SYNCa from the DRC processor 101. The field number generator 122 generates field numbers sequentially incremented for each field period in accordance with the synchronization signal SYNCa.

The additional information writing processing unit 123 receives the signal type information generated by the video signal determining unit 121 and the field number generated by the field number generating unit 122. In the additional information writing processing unit 123, the signal type information and the field number are combined to generate additional information, and the additional information is written into the FIFO unit 124.

In addition, the additional information reading processing unit 125 receives the synchronization signal SYNCb in synchronization with the output video signal from the DRC processing unit 101. The additional information reading processing unit 125 reads the additional information Iad from the FIFO unit 124 in accordance with the synchronization signal SYNCb, and sends the read additional information Iad to the bus 107. In this case, the additional information Iad corresponding to each field period of the output video signal of the DRC processing unit 101 is sent to the bus 107.

The detailed structure of the output control part 105 is demonstrated below. 3 shows a detailed configuration of the output control unit 105.

The output control unit 105 includes an additional information acquisition unit 151, an additional information writing processing unit 152, a FIFO unit 153, and an additional information reading processing unit 154.

The additional information acquisition unit 151 is provided from the above-described input control unit 102 in accordance with the synchronization signal SYNCc extracted from the input video signal of the output processing unit 104 supplied from the output processing unit 104 (see FIG. 1). The additional information Iad is obtained via the bus 107. The additional information writing processing unit 152 writes the additional information Iad acquired by the additional information obtaining unit 151 into the FIFO unit 153.

The additional information reading processing unit 154 reads the additional information Iad from the FIFO unit 153 in accordance with a synchronization signal SYNCd supplied from the output processing unit 104 (refer to FIG. 1) and synchronizes with the output video signal. The control signal SCO is generated based on the signal type information included in the information Iad. Thereafter, the additional information reading processing unit 154 controls the output processing unit 104 with the control signal SCO.

In this case, the size of the FIFO section 153 depends on the processing time of the noise reduction processing section 103 and the output processing section 104. That is, the size of the FIFO unit 153 is set so that the additional information Iad corresponding to each field period of the output video signal of the output processing unit 104 is read out from the FIFO unit 153 in each field period.

 The output processing of the output processing part 104 is controlled by the control signal SCO as follows. In other words, when the signal to be output from the output processor 104 is a video signal, the output processor 104 is controlled to output the signal. When the signal to be output from the output processor 104 is a non-image signal, the output processor 104 is controlled to output a blanking signal instead of the non-image signal.

The operation of the output control section 105 will be described below.

The additional information acquisition unit 151 is supplied with the synchronization signal SYNCc separated from the input video signal from the output processing unit 104. The additional information acquisition unit 151 acquires additional information Iad from the bus 107 for each field period in accordance with this synchronization signal SYNCc. The additional information writing processing unit 152 writes the additional information Iab to the FIFO unit 153.

In addition, the additional information reading processing unit 154 receives the synchronization signal SYNCd in synchronization with the output video signal from the output processing unit 104. The additional information reading processing unit 154 also reads the additional information Iad from the FIFO unit 153 in accordance with this synchronization signal SYNCd. This additional information Iab corresponds to each field period of the output video signal of the output processor 104.

The additional information reading processing unit 154 generates a control signal SCO in each field period based on the signal type information included in the additional information Iad read out from the FIFO unit 153. This control signal SCO is supplied to the output processor 104. In this case, the output processor 104 is controlled to output the signal when the signal to be output is a video signal, and to output the blanking signal instead of the non-video signal when the signal to be output is a non-video signal.

The operation of the information signal processing apparatus 100 shown in FIG. 1 will be described.

The DRC processing unit 101 receives an input video signal SVin. The DRC processing unit 101 performs DRC processing (high definition processing) on the input video signal SVin. The DRC processing unit 101 transmits the output video signal after the high quality image processing to the noise reduction processing unit 103. The noise reduction processing unit 103 performs noise reduction processing on the output video signal of the DRC processing unit 101.

The input control unit 102 receives the sync signal SYNCa separated from the input video signal SVin by the DRC processing unit 101. The DRC processing unit 101 also supplies the input control unit 102 with a synchronization signal SYNCb in synchronization with the output video signal. The input control unit 103 generates additional information Iad as meta information for each field of the video signal output from the DRC processing unit 101. The resulting additional information Iad is sent to the bus 107.

The video signal after the noise reduction processing by the noise reduction processing unit 103 is supplied to the output processing unit 104. The output processor 104 separates the synchronization signal SYNCc from the input video signal and supplies it to the output controller 105. In addition, the output processing unit 104 also supplies the synchronizing signal SYNCd to the output control unit 105 in synchronization with the output video signal.

The output control part 105 acquires the additional information Iad transmitted via the bus 107, and controls the operation of the output processing part 104 based on this additional information Iad. That is, the output processor 104 is controlled to output the input signal when the input signal is a video signal by the signal type information included in the additional information Iad, and the blanking signal instead of the input signal when the input signal is a non-video signal. It is controlled to output.

The display 106 is then supplied with the video signal SVout output from the output processor 104. The display 106 displays an image by the video signal SVout.

As described above, according to the information signal processing apparatus 100 shown in FIG. 1, the output processing unit 104 (output control unit 105) from the DRC processing unit 101 (the input control unit 102) via the bus 107. On the basis of the additional information Iad transmitted to), the output processing unit 104 is controlled to output the signal when the signal to be output is a video signal, and outputs a blanking signal instead of the non-video signal when the output signal is a non-video signal. It is controlled. As a result, blanking can be accurately performed in response to the non-image signal.

Next, a second embodiment of the present invention will be described. 4 shows the configuration of the information signal processing apparatus 200 as the second embodiment.

The information signal processing apparatus 200 includes an extended DRC processing unit 201, a noise reduction processing unit 202, an output control processing unit 203, a display 204, and a bus 205.

The extended DRC processing unit 201 constitutes a first processing unit. The extended DRC processing unit 201 executes a high-definition processing (DRC processing) on the input video signal SVin, and outputs an processed video signal with an identifier as meta information and a field number in this embodiment for each field period. In this embodiment, the signal path of the video signal constitutes a transmitting device of the field number. In the image quality processing, for example, an SD signal which is an input video signal SVin is converted into an HD signal. This high definition process is the same as the high quality process in the DRC processing part 101 of the information signal processing apparatus 100 shown in FIG.

The extended DRC processing unit 201 generates additional information Iad as meta information for each field of the video signal output from the extended DRC processing unit 201, and sends the additional information Iad to the bus 205. This additional information is composed of signal type information indicating whether the signal is a video signal or a non-video signal, and a field number as an identifier. Here, the extended DRC processing unit 201 and the bus 205 together constitute a transmission device of additional information Iad.

The noise reduction processing unit 202 reduces noise from the output video signal of the extended DRC processing unit 201.

The output control processing unit 203 constitutes a second processing unit and performs output processing on the video signal output from the noise reduction processing unit 202. The output control processor 203 also separates the field numbers added for each field period from the input video signal, acquires additional information Iad transmitted through the bus 205, and based on these field numbers and the additional information Iad. To execute the output processing operation. In this case, the output control processing unit 203 outputs the input signal when the input signal is a video signal, and outputs a blanking signal instead of the input signal when the input signal is a non-video signal.

The display 204 is configured with a display element such as an LCD (Liquid Crystal Display), and displays an image generated by the image signal SVout output from the output control processing unit 203.

The detailed configuration of the extended DRC processing unit 201 will be described below. 5 shows a detailed configuration of the extended DRC processing unit 201.

The extended DRC processing unit 201 includes a determining unit 211, a switch (SW) 212, a field number separating unit 213, a high quality processing unit 214, a combining unit 215, a field number generating unit 216, and writing. A processing unit 217, a FIFO unit 218, a field number reading processing unit 219, an input synchronization signal extraction unit 220, and an output synchronization signal generation unit 221 are provided.

The determination unit 211 determines whether a field number has already been added to the input video signal SVin based on the additional information Ino of the number. The additional information Ino of this number is information indicating whether a field number has already been added to the input image signal SVin for each field period. 6 shows a state in which a field number ID has already been added to the video signal, and the field number is inserted in the blanking period.

The switch 212 switches the supply of the input video signal SVin between the high quality processing unit 214 and the field number separator 213 according to the determination result of the determination unit 211. That is, the switch 212 supplies the input video signal SVin to the field number separator 213 when the field number is added to the input video signal SVin, and increases the quality when the field number is not added to the input video signal SVin. It supplies to the processing part 214.

The field number separating unit 213 separates the field number for each field period from the input video signal SVin to which the field number is added, and supplies the video signal from which the field number is separated to the image quality processing unit 214. The image quality processing unit 214 performs a DRC process (high quality image processing) on the input video signal.

The input sync signal extractor 220 extracts a sync signal from the input video signal SVin. The field number generator 216 generates field numbers incremented sequentially for each field period in synchronization with the synchronization signal extracted by the input synchronization signal extraction unit 220 according to the determination result of the determination unit 211. In this case, the field number generator 216 generates a field number when no field number is added to the input video signal SVin.

The write processing unit 217 writes the field number separated by the field number separator 213 or the field number generated by the field number generator 216 into the FIFO unit 218 for each field period. The field number read processing unit 219 reads the field number from the FIFO unit 218 in accordance with the synchronization signal generated by the output synchronization signal generation unit 221 and supplies the read field number to the synthesis unit 215. The synthesizing unit 215 inserts the field number in the blanking period of the video signal after the high quality processing unit 214 performs the high quality processing, and adds the field number in synchronization with the synchronizing signal generated by the output synchronizing signal generation unit 221. The processed processed video signal SVa.

Here, the size of the FIFO unit 218 depends on the processing period of the image quality processing unit 214. That is, the size of the FIFO unit 218 is set so that the field number corresponding to each field period of the output video signal of the high quality image processing unit 214 is supplied from the field number reading processing unit 219 to the combining unit 215 for each field period. It is.

The extended DRC processing unit 201 includes a video signal determining unit 222, a field number receiving unit 223, an additional information writing processing unit 224, a FIFO unit 225, and an additional information reading processing unit 226.

The video signal determination unit 222 determines whether the input signal is a video signal or a non-video signal for each field period according to the synchronization signal extracted by the input synchronization signal extraction unit 220, and the signal type that is the result of the determination. Print information.

In this case, the video signal determination unit 222 basically determines that the input signal is a video signal in the field period with the synchronization signal, and the input signal is non-video signal in the other field period. However, the image quality processing unit 214 may output a non-video signal for two field periods after the first field of the input video signal SVin is input. In this case, the video signal determination unit 222 replaces the signal type of the two field periods with a non-video signal and outputs signal type information.

The field number receiving unit 223 stores the field number separated by the field number separating unit 213 or the field number generated by the field number generating unit 216, which is written in the FIFO unit 218 by the writing processing unit 217. Receive.

The additional information writing processing unit 224 combines the signal type information generated by the video signal determining unit 222 with the field number received by the field number receiving unit 223 into additional information, and adds the additional information to the FIFO unit for each field period. Fill in (225). 7 shows additional information Iad associated with a field number (ID) and signal type information. The additional information reading processing unit 226 reads the additional information Iad from the FIFO unit 225 according to the synchronizing signal generated by the output synchronizing signal generating unit 221, and sends the read additional information to the bus 205.

The operation of the extended DRC processing unit 201 will be described below.

The input video signal SVin is supplied to the switch 212 and the input sync signal extractor 220. When no field number is added to the input video signal SVin, the input video signal SVin is supplied to the high quality image processing unit 214 via the switch 212. In addition, in synchronism with the synchronization signal extracted by the input synchronization signal extraction unit 220, the field number generation unit 216 generates field numbers sequentially incremented for each field period.

On the other hand, when a field number is added to the input video signal SVin, the input video signal SVin is supplied to the field number separator 213 through the switch 212. The field number separating unit 213 separates the field number from the input video signal SVin, and supplies the video signal having the field number separated therefrom to the image quality processing unit 214. The image quality processing unit 214 performs a DRC process (high quality image processing) on the input image signal, and supplies the processed image signal to the synthesis unit 215.

The field number separated by the field number separator 213 or the field number generated by the field number generator 216 is written to the FIFO unit 218 via the write processor 217. The output synchronizing signal generator 221 supplies the synchronizing signal to the field number read processing unit 219. The field number reading processing unit 219 reads the field number from the FIFO unit 218 and supplies it to the combining unit 215 in accordance with the synchronization signal. In this case, in each field period of the output video signal of the image quality processing unit 214, a field number corresponding to each field period is supplied from the field number reading processing unit 219 to the combining unit 215.

The synthesizing unit 215 inserts the field number in the blanking period of the video signal after the high quality processing unit 214 undergoes the high quality processing. Thereafter, the processed video signal SVa to which the field number is added is output in synchronization with the synchronization signal generated by the output synchronization signal generator 221.

The input sync signal extractor 220 extracts a sync signal from the input video signal SVin and supplies the extracted sync signal to the video signal determiner 222. The video signal determination unit 222 determines whether the input signal of the extended DRC processing unit 201 is a video signal or a non-video signal for each field period, and generates signal type information. In addition, the field number receiver 223 is a field number separated by the field number separator 213, or a field generated by the field number generator 216, which is written to the FIFO unit 218 via the write processor 217. Receive a number.

The signal type information generated by the video signal determining unit 222 and the field number received by the field number receiving unit 223 are supplied to the additional information writing processing unit 224. The additional information writing processing unit 224 combines the signal type information and the field number into additional information, and writes the additional information into the FIFO unit 225.

In addition, the additional information reading processing unit 226 receives the synchronization signal generated by the output synchronization signal generation unit 221. The additional information reading processing unit 226 reads the additional information Iad from the FIFO unit 225 in accordance with this synchronization signal, and sends the read additional information Iad to the bus 205. In this case, additional information Iad corresponding to each field of the output video signal of the extended DRC processing unit 201 is sent to the bus 205.

The detailed structure of the output control processing part 203 is demonstrated below. 8 shows a detailed configuration of the output control processing unit 203.

The output control processor 203 includes a field number separator 231, an output processor 232, a field number acquirer 233, a write processor 234, a FIFO unit 235, a field number read processor 236, and an input. Synchronization signal extracting unit 237, output synchronizing signal generating unit 238, additional information obtaining unit 239, additional information writing processing unit 240, FIFO unit 241, additional information reading processing unit 242, field number comparison A processing unit 243 and an output control unit 244 are provided.

The field number separator 231 separates the field number ID for each field period from the input video signal SVb to which the field number is added, and supplies the video signal from which the field number is separated to the output processor 232. .

The input sync signal extractor 237 extracts a sync signal from the input video signal SVb. The field number acquisition unit 233 acquires the field number separated by the field number separation unit 231 at the timing of the synchronization signal extracted by the input synchronization signal extraction unit 237.

The write processing unit 234 writes the field number acquired by the field number acquisition unit 233 into the FIFO unit 235 for each field period. The field number read processing unit 236 reads the field number from the FIFO unit 235 in accordance with the synchronization signal generated by the output synchronization signal generation unit 238. Here, the size of the FIFO unit 235 depends on the processing time of the output processing unit 232. That is, the size of the FIFO unit 235 is set so that the field number corresponding to each field period of the output video signal of the output processing unit 232 is read from the FIFO unit 235.

The additional information acquisition unit 239 acquires the additional information Iad transmitted via the bus 205 from the above-described extended DRC processing unit 201 according to the synchronization signal extracted by the input synchronization signal extraction unit 237. The additional information writing processing unit 240 receives the additional information Iad from the additional information obtaining unit 239 and writes the additional information Iad into the FIFO unit 241.

The additional information reading processing unit 242 reads additional information Iad for a plurality of field periods from each stage of the FIFO unit 241 in accordance with the synchronization signal generated by the output synchronizing signal generating unit 238. Here, the additional information including the field number read by the field number read processing unit 236 from the above-described FIFO unit 235 in the additional information Iad for the plurality of field periods read from each stage of the FIFO unit 241. The number of stages of the FIFO unit 241 is set so that Iad exists.

The field number comparison processing unit 243 compares the field number read by the field number reading processing unit 236 with the field number included in each of the additional information Iads for the plurality of field periods read by the additional information reading processing unit 242. Then, the signal type information constituting the additional information Iad having the matching field number is obtained, and then the signal type information is sent to the output control unit 244.

The output control unit 244 performs the output processing of the output processing unit 232 on the basis of the signal type information transmitted from the field number comparison processing unit 243 in synchronization with the synchronization signal generated by the output synchronization signal generation unit 238. Generates a control signal SCO to control. In this case, the control signal SCO controls to output the video signal when the signal to be output from the output processor 232 is a video signal, and the non-video when the signal to be output from the output processor 232 is a non-video signal. Control to output a blanking signal instead of the signal.

The operation of the output control processing unit 203 will be described below.

While the field number separator 231 receives the input video signal SVb, the input sync signal extractor 237 also receives the input video signal SVb. The field number separator 231 separates the field number from the input video signal SVb and supplies the video signal from which the field number is separated to the output processor 232.

The field number separated by the field number separator 231 is supplied to the field number acquisition unit 233. The field number acquisition unit 233 acquires the field number in accordance with the synchronization signal extracted by the input synchronization signal extraction unit 237. The field number acquired by the field number acquisition unit 233 is written into the FIFO unit 235 through the write processing unit 234. The field number read processing unit 236 reads the field number for each field period in accordance with the synchronization signal generated by the output synchronization signal generation unit 238.

The additional information acquisition unit 239 acquires additional information Iad from the bus 205 for each field period in accordance with the synchronization signal extracted by the input synchronization signal extraction unit 237. The additional information writing processing unit 240 writes this additional information Iab into the FIFO unit 241. The additional information reading processing unit 242 then, from each stage of the FIFO unit 241, adds additional information Iad for a plurality of field periods for each field period in accordance with the synchronization signal generated by the output synchronization signal generation unit 238. FIG. Read it.

The field number read by the field number read processing unit 236 and the additional information Iad for the plurality of field periods read by the additional information read processing unit 242 are respectively supplied to the field number comparison processing unit 243. The field number comparison processing unit 243 compares the field numbers included in each of the additional information Iads for the plurality of field periods with the field numbers read by the field number reading processing unit 236, and has additional field numbers corresponding to each other. Obtains signal type information constituting Iad. This signal type information is transmitted to the output control part 244.

The output control unit 244 generates the control signal SCO in synchronization with the synchronization signal generated by the output synchronization signal generation unit 238 based on the signal type information transmitted from the field number comparison processing unit 243. The control signal SCO is transmitted to the output processor 232. In this case, the output processor 232 is controlled to output the video signal when the signal to be output is a video signal, and to output the blanking signal instead of the non-video signal when the output signal is a non-video signal. .

The operation of the information signal processing apparatus 200 shown in FIG. 4 will be described.

The input video signal SVin is supplied to the extended DRC processing unit 201. The extended DRC processing unit 201 performs DRC processing (high definition processing) on the input video signal SVin. The extended DRC processing unit 201 then outputs the processed video signal SVa to which the field number is added for each field period. The noise reduction processing unit 202 performs an arbitrary noise reduction process on the processed video signal SVa, and supplies the noise reduced video signal SVa to the output control processing unit 203.

In addition, the extended DRC processing unit 201 generates additional information I ad composed of a field number (ID) and signal type information for each field of the video signal output from the extended DRC processing unit 201. This additional information Iad is sent to the bus 205.

The output control processing unit 203 performs arbitrary output processing on the video signal SVb output from the noise reduction processing unit 202. In this case, the field numbers added to the video signal SVb for each field period are separated and additional information Iad transmitted through the bus 205 is obtained. Based on this field number and the additional information Iad, output processing is controlled.

In this case, the output in each field period is controlled based on the signal type information of the additional information Iad including the same field number as that field period as the current field period. When the input signal is a video signal, the input signal is output. When the input signal is a non-video signal, a blanking signal is output instead of the input signal.

The video signal SVout output from the output control processing unit 203 is supplied to the display 204. The display 204 then displays an image generated by the video signal SVout.

Therefore, according to the information signal processing apparatus 200 shown in FIG. 4, the field number ID and the bus (B) inserted and transmitted from the extended DRC processing unit 201 to the output control processing unit 203 in the blanking period of the video signal are transmitted. Based on the additional information Iad transmitted through 107, the output control processing unit 203 outputs the video signal when the signal to be output is a video signal, and blanks in place of the non-video signal when the signal to be output is a non-video signal. It is controlled to output a signal. As a result, blanking can be accurately performed in response to the non-image signal.

Next, a third embodiment of the present invention will be described. 9 shows the configuration of an information signal processing apparatus 300 as a third embodiment of the present invention.

The information signal processing apparatus 300 includes a DRC processing unit 301, an input control unit 302, a voice input control unit 303, a noise reduction processing unit 304, an output processing unit 305, an output control unit 306, and a voice output control unit. 307, display 308, speaker 309, and bus 310 are provided.

The DRC processing unit 301 configures an image processing unit and performs DRC processing (high definition processing) on the input video signal SVin. This DRC process is the same as the DRC process performed by the DRC processing unit 101 of the information signal processing apparatus 100 shown in FIG. The noise reduction processing unit 304 performs arbitrary noise reduction processing on the output video signal of the DRC processing unit 301. The output processor 305 performs arbitrary output processing on the video signal output from the noise reduction processor 304. The display 308 is comprised of display elements, such as a liquid crystal display (LCD), and displays an image based on the video signal SVout output from the output processing part 305. FIG. The speaker 309 outputs voice based on the voice signal SAout output from the voice output control unit 307.

The input control unit 302 generates an identifier as meta information, in this embodiment, a field number IDv for each field period of the video signal output from the DRC processing unit 301, and forms the field number IDv in the bus 310. Send to the first line. The voice input control unit 303 generates an identifier as meta information, a field number IDa in this embodiment, for each field period of the input voice signal SAin, and uses this field number IDa as a second line constituting the bus 310. To be sent. In this case, the field number IDa of the input audio signal SAin is generated corresponding to each field period of the input video signal SVin, and the field number IDa is the same as the field number IDv generated in each field period of the input video signal SVin.

The output control unit 306 acquires the field number IDv transmitted through the first line of the bus 310. The output processor 305 sequentially outputs the video signal of the field period corresponding to the field number IDv. The audio output control unit 307 acquires the field number IDa transmitted through the second line of the bus 310, and based on the field number IDa and the above-described field number IDv, the video signal output from the output processing unit 305. The audio signal SAout corresponding to each field period of SVout is output.

The detailed configurations of the input control unit 302 and the voice input control unit 303 will be described below. 10 shows the detailed configuration of the input control unit 302 and the voice input control unit 303.

The input control unit 302 includes a field number generation unit 321, a write processing unit 322, a FIFO unit 323, and a field number reading processing unit 324.

The field number generator 321 generates field numbers sequentially incremented for each field period in accordance with the synchronization signal SYNCa extracted from the input video signal SVin supplied from the DRC processing unit 301 (see FIG. 9). The write processing unit 322 writes the field number generated by the field number generation unit 321 into the FIFO unit 323 for each field period. The field number read processing unit 324 reads the field number IDv from the FIFO unit 323 according to the synchronization signal SYNCb supplied from the DRC processing unit 301, and reads the field number IDv into the first line of the bus 310. Send it out.

Here, the size of the FIFO unit 323 depends on the processing time of the DRC processing unit 301. That is, the size of the FIFO unit 323 is set so that the field number IDv corresponding to each field period of the output video signal from the DRC processing unit 301 is sent from the field number reading processing unit 324 to the bus 310. .

The voice input control unit 303 also includes a field number receiving unit 331, a write processing unit 3332, a FIFO unit 333, and a field number reading processing unit 334.

The field number receiver 331 receives the field number generated by the field number generator 321 of the input controller 302 described above. The writing processing unit 332 writes the field number received by the field number receiving unit 331 into the FIFO unit 333 for each field period. The field number reading processing unit 334 reads the field number IDa from the FIFO unit 333 according to the synchronization signal SYNCb supplied from the DRC processing unit 301, and reads the field number IDa into the second line of the bus 310. Send it out.

Here, the size of the FIFO unit 323 is smaller than the size of the FIFO unit 323 of the input control unit 302 because the above-described DRC processing unit 301 does not perform any processing on the audio signal. In this case, the FIFO unit 333 so that the field number IDa corresponding to each field period of the audio signal input to the audio output control unit 307 is sent from the field number reading processing unit 334 to the second line of the bus 310. The size of is set.

The operation of the input control unit 302 and the voice input control unit 303 will be described below.

The field number generator 321 receives the synchronizing signal SYNCa extracted from the input video signal SVin from the DRC processing unit 301, and generates a field number sequentially incremented for each field period in accordance with the synchronizing signal SYNCa. This field number is written into the FIFO unit 323 via the write processing unit 322. Then, the field number reading processing unit 324 receives the synchronization signal SYNCb in synchronization with the output video signal from the DRC processing unit 301, and receives the field number IDv as the first identifier from the FIFO unit 323 in accordance with the synchronization signal SYNCb. Read it. The read field number IDv is sent to the first line of the bus 310. In this case, in each field period of the output video signal of the DRC processing unit 301, the field number IDv corresponding to the field period is sent out to the first line of the bus 310.

In addition, the field number receiver 331 receives the field number generated by the field number generator 321 of the input controller 302. This field number is written into the FIFO section 333 by the write processing section 332. The field number reading processing unit 334 receives the synchronization signal SYNCb from the DRC processing unit 301, and reads the field number IDa as the second identifier from the FIFO unit 333 in accordance with the synchronization signal SYNCb. The read field number IDa is sent to the second line of the bus 310. In this case, in each field period of the input voice signal of the voice output control unit 307, the field number IDa corresponding thereto is sent out to the second line of the bus 310.

The detailed configurations of the output control unit 306 and the audio output control unit 307 will be described below. 11 shows detailed configurations of the output control unit 306 and the audio output control unit 307, respectively.

The output control unit 306 includes a field number acquisition unit 361, a write processing unit 362, a FIFO unit 363, and an image number reading processing unit 364.

The field number acquisition unit 361 receives the bus (from the above-described input control unit 302 in accordance with the synchronization signal SYNCc extracted from the input image signal of the output processing unit 305, supplied from the output processing unit 305 (see Fig. 9)). The field number IDv transmitted through the first line of 310 is obtained. The write processing unit 362 writes the field number IDv acquired by the field number acquisition unit 361 into the FIFO unit 363.

The video number reading processing section 364 reads the field number IDv from the FIFO section 363 in accordance with the synchronization signal SYNCd supplied from the output processing section 305 (see Fig. 9) in synchronization with the output video signal. In this case, the size of the FIFO section 363 depends on the processing time of the noise reduction processing section 304 and the output processing section 305. That is, the size of the FIFO unit 363 is set so that the field number IDv corresponding to each field period of the output video signal of the output processing unit 305 is read out from the FIFO unit 363 for each field period.

The audio output control unit 307 includes a field number acquisition unit 371, a write processing unit 372, a FIFO unit 373, a voice number reading processing unit 374, and a buffer 375.

The field number acquisition part 371 is supplied from the output processing part 305 (refer FIG. 9) from the audio | voice input control part 303 mentioned above according to the synchronization signal SYNCc extracted from the input video signal of this output processing part 305. FIG. Obtain field number IDa transmitted over the second line of bus 310. The write processing unit 372 writes the field number IDa obtained by the field number acquisition unit 371 into the FIFO unit 373.

The audio number reading processing unit 374 supplies a plurality of field periods from each stage of the FIFO unit 373 according to a synchronization signal SYNCd synchronized with the output video signal supplied from the output processing unit 305 (see Fig. 9). The field number IDa of is read. Here, in the field numbers IDa for the plurality of field periods read from each stage of the FIFO unit 373, the field numbers read by the video number reading processing unit 364 from the FIFO unit 363 described above exist. The number of stages of the FIFO section 373 is set.

The voice number reading processing unit 374 has a field number corresponding to the field number read out from the FIFO unit 363 by the video number reading processing unit 364 in the field number IDa for the plurality of field periods. After confirming that, the audio signal of the field period corresponding to the field number is output from the buffer 375. For reference, the buffer 375 is configured such that an audio signal of each field period corresponding to the field number IDa held at each end of the FIFO section 373 is held.

The operation of the output control unit 306 and the audio output control unit 307 will be described below.

The field number acquisition unit 361 receives the synchronization signal SYNCc extracted from the input video signal from the output processing unit 305. The field number acquisition unit 361 acquires the field number IDv from the first line of the bus 310 for each field period in accordance with the synchronization signal SYNCc. This field number IDv is written into the FIFO section 363 via the write processing section 362.

The video number reading processing section 364 receives a synchronization signal SYNCd in synchronization with the output video signal from the output processing section 305. The video number reading processing section 364 reads the field number IDv from the FIFO section 363 in accordance with this synchronization signal SYNCd. This field number IDv corresponds to each field period of the output video signal SVout of the output processing unit 305.

The field number acquisition unit 371 receives the synchronization signal SYNCc extracted from the input video signal from the output processing unit 305. The field number acquisition unit 371 acquires the field number IDa from the second line of the bus 310 for each field period in accordance with this synchronization signal SYNCc. This field number IDa is written to the FIFO unit 373 via the write processing unit 372.

The voice number reading processing unit 374 receives the synchronization signal SYNCd from the output processing unit 305, and reads the field number IDa for the plurality of field periods from each stage of the FIFO unit 373 according to the synchronization signal SYNCd. . Then, the audio number reading processing unit 374 determines whether there is a field number corresponding to the field number read out from the FIFO unit 363 by the video number reading processing unit 364 in the field number IDa for the plurality of field periods. After confirming, the buffer 375 is controlled to output the audio signal of the field period corresponding to the field number.

The operation of the information signal processing apparatus 300 shown in FIG. 9 will be described below.

The DRC processing unit 301 receives an input video signal SVin. The DRC processing unit 301 performs DRC processing (high definition processing) on the input video signal SVin. The noise reduction processing unit 304 is then supplied with the output video signal after the high quality processing by the DRC processing unit 301. The noise reduction processing unit 304 performs an arbitrary noise reduction processing on the output video signal of the DRC processing unit 301.

The input control unit 302 receives the synchronization signal SYNCa separated from the input video signal SVin from the DRC processing unit 301. In addition, the input control unit 302 is supplied with a synchronization signal SYNCb in synchronization with the output video signal from the DRC processing unit 301. The input control unit 302 generates field number IDvfmf as meta information for each field period of the video signal output from the DRC processing unit 301. This field number IDv is sent to the first line of the bus 310.

The voice input control unit 303 receives the synchronization signals SYNCa and SYNCb from the DRC processing unit 301. The voice input control unit 303 generates a field number IDa corresponding to each field period of the voice signal input to the voice output control unit 307 and sends the field number IDa to the second line of the bus 310. do.

The output processing unit 305 receives the video signal after the noise reduction processing from the noise reduction processing unit 304 and outputs the output video signal SVout. The output control unit 306 receives the synchronization signal SYNCc extracted from the input video signal and the synchronization signal SYNCd synchronized with the output video signal from the output processing unit 305.

The output control unit 306 acquires the field number IDv transmitted through the first line of the bus 310 for each field period. In this way, the field number IDv obtained for each field period corresponds to each field period of the video signal SVout sequentially output from the output processing unit 305.

The audio output control unit 307 also receives the synchronization signals SYNCc and SYNCd from the output processing unit 305. The audio output control unit 307 is also supplied with an input audio signal SAin (SAa) corresponding to the input video signal SVin. The audio output control unit 307 acquires the field number IDa transmitted through the second line of the bus 310 for each field period. The audio output control unit 307 outputs the audio signal SAout corresponding to each of the predetermined periods of the video signal SVout output from the output processing unit 305 based on the field number IDa and the field number IDv described above.

The video signal SVout output from the output processor 305 is supplied to the display 308, and the display 308 displays an image by the video signal SVout. In addition, the voice signal SAout output from the voice output control unit 307 is supplied to the speaker 309, and the speaker 309 outputs voice by the voice signal SAout.

As mentioned above, according to the information signal processing apparatus 300 shown in FIG.

The audio signal SAout corresponding to each of the predetermined periods of the video signal SVout output from the output processing unit 305 receives the bus 310 from the DRC processing unit 301 (the input control unit 302 and the audio input control unit 303). Based on the field numbers IDv and IDa transmitted to the output processing unit 305 (the output control unit 306 and the audio output control unit 307) via the output unit, the audio output control unit 307 is output. In this way, the video signal SVout and the audio signal SAout are synchronized with each other, and the lip sync is accurately adjusted.

Next, a fourth embodiment of the present invention will be described. 12 shows the configuration of an information signal processing apparatus 400 as a fourth embodiment of the present invention.

The information signal processing apparatus 400 includes an extended DRC processing unit 401, a noise reduction processing unit 402, an output control processing unit 403, and a display 404.

The extended DRC processing unit 401 constitutes an image processing unit, performs DRC processing (high definition processing) on the input video signal SVin, and adds an identifier as meta information and a field number (ID) in this embodiment for each field period. Output the processed video signal. For example, the field number ID is inserted in the blanking period, as shown in FIG. Here, the signal path of the video signal constitutes a transmission device of the field number.

In the image quality processing, for example, an SD signal which is an input video signal SVin is converted into an HD signal. This high quality image processing is the same as the high quality image processing in the DRC processing unit 101 of the information signal processing apparatus 100 shown in FIG. 1. The noise reduction processing unit 402 performs a process of reducing noise with respect to the output video signal of the extended DRC processing unit 401.

The output control processing unit 403 configures an image output processing unit and performs output processing on the video signal output from the noise reduction processing unit 402. In this case, a field number added for each field period is separated from the input video signal, and each video signal in the field period corresponding to the separated field number is sequentially output.

The display 404 is configured with a display element such as an LCD (Liquid Crystal Display), and displays an image by the image signal SVout output from the output control processing unit 403.

In addition, the information signal processing apparatus 400 includes a voice controller 405, a voice output controller 406, and a speaker 407.

The audio control unit 405 constitutes an audio processing unit, and in this embodiment, in which the identifier of the input audio signal SAin corresponding to the input video signal SVin is added to correspond to each field period of the video signal SVin, the field number is added. Output the audio signal. This identifier is the same as the identifier interleaved for each field period of the video signal SVin. For example, as shown in Fig. 13A, intermittent audio data of 32 kbps is densified to audio data of 128 kbps for each field period, as shown in Fig. 13B. The field number ID is then inserted into the 128 kbps voice data using the free time area. Here, the signal path of the audio signal constitutes a field number transmission device.

The voice output control unit 406 constitutes a voice output processing unit, and performs arbitrary output processing on the voice signal SAa output from the voice control unit 405. In this case, the field number added to the input audio signal is separated from the input audio signal every field period, and based on this field number and the field number separated from the video signal by the above-described output control processing unit 403, The audio signal SAout corresponding to each field period of the video signal SVout output from the output control processing unit 403 is output.

The speaker 407 outputs voice by the voice signal SAout output from the voice output control unit 406.

The detailed configurations of the extended DRC processing unit 401 and the voice control unit 405 will be described below. 14 shows a detailed configuration of the extended DRC processing unit 401 and the voice control unit 405.

The extended DRC processing unit 401 includes a determination unit 411, a switch (SW) 412, a field number separation unit 413, a high definition processing unit 414, a combining unit 415, a field number generation unit 416, and writing. A processing unit 417, a FIFO unit 418, a field number reading processing unit 419, an input synchronization signal extraction unit 420, and an output synchronization signal generation unit 421 are provided.

The determination unit 411 determines whether the field number has already been added to the input video signal SVin and the input audio signal SAin based on the number addition information Ino. The number addition information Ino is information indicating whether a field number has already been added to the input image signal SVin and the input audio signal SAin for each field period.

The switch 412 switches the supply of the input video signal SVin to the high quality processing unit 414 and the field number separator 413 in accordance with the determination result by the determination unit 411. That is, the switch 412 supplies the input video signal SVin to the field number separator 413 when the field number is added, and to the high quality processor 414 when the field number is not added.

The field number separating unit 413 separates the field number for each field period from the input video signal SVin to which the field number is added, and supplies the video signal after the field number is separated to the image quality processing unit 414. The image quality processing unit 414 performs DRC processing (high quality image processing) on the input video signal.

The input sync signal extractor 420 extracts a sync signal from the input video signal SVin. The field number generator 416 generates field numbers sequentially incremented for each field period in synchronization with the synchronization signal extracted by the input synchronization signal extraction unit 420 according to the determination result by the determination unit 411. . In this case, the field number generator 416 generates a field number when no field number is added to the input video signal SVin.

The write processing unit 417 writes the field number separated by the field number separator 413 or the field number generated by the field number generator 416 into the FIFO unit 418 for each field period. The field number read processing unit 419 reads the field number from the FIFO unit 418 in accordance with the synchronization signal generated by the output synchronization signal generation unit 421 and supplies the read field number to the synthesis unit 415.

The synthesizing unit 415 inserts the field number in the blanking period of the video signal after the high quality processing by the high quality processing unit 414, and adds the field number in synchronization with the synchronization signal generated by the output synchronizing signal generation unit 421. The processed processed video signal SVa.

Here, the size of the FIFO unit 418 depends on the processing time of the image quality processing unit 414. That is, the size of the FIFO unit 418 is such that the field number corresponding to each field period of the output video signal of the high quality image processing unit 414 is supplied from the field number reading processing unit 419 to the combining unit 415 for each field period. It is set.

The control unit 405 includes a switch 422, a field number separator 423, a high density processor 424, a synthesizer 425, a field number receiver 426, a write processor 427, a FIFO unit 428, and A field number read processing section 429 is provided.

The switch 422 switches the supply of the input audio signal SAin to the densification processing unit 424 and the field number separator 423 in accordance with the determination result by the determination unit 411 of the extended DRC processing unit 401. That is, the switch 422 supplies the input voice signal SAin to the field number separator 423 when the field number is added, while supplying it to the densification processing unit 424 when the field number is not added.

The field number separating unit 423 separates the field number for each field period from the input voice signal SAin to which the field number is added, and supplies the speech signal from which the field number is separated to the densification processing unit 424. The densification processing unit 424 executes the densification processing on the audio data in order to insert the field number for each field period (see Fig. 13B).

The field number receiver 426 receives the field number generated by the field number generator 416 of the extended DRC processor 401. The write processing unit 427 writes the field number separated by the field number separating unit 423 or the field number received by the field number receiving unit 426 into the FIFO unit 428 for each field period. The field number read processing unit 429 reads the field number from the FIFO unit 428 in accordance with the synchronization signal generated by the output synchronization signal generation unit 421 of the extended DRC processing unit 401, and synthesizes the read field number. To 425. The synthesizing unit 425 inserts the field number into the free time area of the voice signal in which the density processing is performed and the free time area is formed for each field period, and outputs the voice signal SAa to which the field number is added.

Here, the size of the FIFO section 428 depends on the processing time of the densification processing section 424. That is, the size of the FIFO unit 428 so that the field number corresponding to each field period of the output video signal of the densification processing unit 424 is supplied from the field number reading processing unit 429 to the combining unit 425 every field period. Is set.

The operation of the extended DRC processing unit 401 and the voice control unit 405 will be described below.

The input video signal SVin is supplied to the switch 412 and also to the input synchronization signal extraction unit 420. When no field number is added to the input video signal SVin, the input video signal SVin is supplied to the high quality image processing unit 414 through the switch 412. The field number generator 416 generates field numbers sequentially incremented for each field period in synchronization with the sync signal extracted by the input sync signal extractor 420.

On the other hand, when the field number is added to the input video signal SVin, the input video signal SVin is supplied to the field number separator 413 through the switch 412. The field number separating unit 413 separates the field number from the input video signal SVin, and supplies the video signal having the field number separated thereto to the image quality processing unit 414. The image quality processing unit 414 then performs DRC processing (high quality image processing) on the input video signal, and supplies the processed video signal to the synthesis unit 415.

The field number separated by the field number separator 413 or the field number generated by the field number generator 416 is written to the FIFO unit 418 via the write processor 417. The synchronizing signal is supplied from the output synchronizing signal generating unit 421 to the field number reading processing unit 419. The field number reading processing section 419 reads the field number from the FIFO section 418 and supplies it to the combining section 415 in accordance with the synchronization signal. In this case, the field number corresponding to each field period of the output video signal of the image quality processing unit 414 is supplied from the field number reading processing unit 419 to the combining unit 415 for each field period. Thereafter, the synthesis unit 415 inserts the field number in the blanking period of the video signal after the high quality processing unit 414 performs the high quality processing. Then, the synthesizing unit 415 outputs the processed video signal SVa to which the field number is added in synchronization with the synchronizing signal generated by the output synchronizing signal generating unit 421.

The input voice signal SAin is supplied to the switch 422. The switch 422 is also supplied with the determination result by the determination unit 411 of the extended DRC processing unit 401. When no field number is added to the input audio signal SAin, the input audio signal SAin is supplied to the densification processing unit 424 via the switch 422. The field number receiver 426 also receives the field number generated by the field number generator 416 of the extended DRC processor 401.

On the other hand, when the field number is added to the input voice signal SAin, the input voice signal SAin is supplied to the field number separator 423 through the switch 422. The field number separator 423 separates the field number from the input voice signal SAin, and supplies the voice signal from which the field number is separated to the densification processing unit 424.

The densification processing unit 424 performs arbitrary densification processing on the input audio signal. However, when a field number has already been added to the input voice signal SAin, the voice signal input to the densification processing unit 424 has already been densified. The densified audio signal is supplied to the combining unit 425.

The field number received by the field number receiving unit 426 is written into the FIFO unit 428 through the writing processing unit 427. The field number read processing unit 429 receives a synchronization signal from the output synchronization signal generation unit 421 of the extended DRC processing unit 401. The field number reading processing section 429 reads the field number from the FIFO section 428 and supplies it to the combining section 425 in accordance with this synchronization signal. In this case, the field number corresponding to each field period of the output audio signal of the densification processing unit 424 is supplied from the field number reading processing unit 429 to the combining unit 425 for each field period.

The synthesizing unit 425 inserts the field number into the free time area of each field period of the audio signal after the densifying processing unit 424 undergoes the densifying process. Thereafter, the synthesizing unit 425 outputs the processed speech signal SAa to which the field number is added in synchronization with the synchronizing signal generated by the output synchronizing signal generating unit 421 of the extended DRC processing unit 401.

The detailed configurations of the output control processing unit 403 and the audio output control unit 406 will be described below. 15 shows a detailed configuration of the output control processing unit 403 and the audio output control unit 406.

The output control processor 403 includes a field number separator 431, an output processor 432, a field number acquirer 433, a write processor 434, a FIFO unit 435, a field number read processor 436, and an input. A synchronizing signal extracting section 437 and an output synchronizing signal generating section 438 are provided.

The field number separator 431 separates the field number ID for each field period from the input video signal SVb to which the field number is added, and supplies the video signal from which the field number is separated to the output processor 432. The output processor 432 outputs an output video signal SVout to be supplied to the display 404 in accordance with the video signal supplied from the field number separator 431.

The input sync signal extractor 437 extracts a sync signal from the input video signal SVb. The field number acquisition unit 433 acquires the field number separated by the field number separation unit 431 at the timing of the synchronization signal extracted by the input synchronization signal extraction unit 437.

The write processing unit 434 writes the field number acquired by the field number acquisition unit 433 into the FIFO unit 435 for each field period. The field number read processing unit 436 reads the field number from the FIFO unit 435 in accordance with the synchronization signal generated by the output synchronization signal generation unit 438. Here, the size of the FIFO section 435 depends on the processing time of the output processing section 432. That is, the size of the FIFO unit 435 is set so that the field number corresponding to each field period of the output video signal of the output processing unit 432 is read out from the FIFO unit 435 for each field period.

The audio output control unit 406 uses the field number separator 439, the output processor 440, the field number acquisition unit 441, the write processor 442, the FIFO unit 443, and the field number read processor 444. Equipped.

The field number separator 439 separates the field number (ID) for each field period from the input voice signal SAa to which the field number is added, and supplies the audio signal from which the field number is separated to the output processor 440. do. The output processor 440 outputs an output voice signal SAout to be supplied to the speaker 407.

The field number acquisition unit 441 acquires the field number separated by the field number separation unit 439 at the timing of the synchronization signal extracted by the input synchronization signal extraction unit 437 of the output control processing unit 403.

The write processing unit 442 writes the field number acquired by the field number acquisition unit 441 into the FIFO unit 443 for each field period. The field number read processing unit 444 reads field numbers for a plurality of field periods from each stage of the FIFO unit 443 in accordance with the synchronization signal generated by the output synchronization signal generation unit 438 of the output control processing unit 403. do. Here, the FIFO unit so that the field numbers read by the field number reading processing unit 436 from the above-described FIFO unit 435 exist in the field numbers for the plurality of field periods read from each stage of the FIFO unit 443. The stage of 443 is set.

Further, the field number reading processing unit 444 checks whether the field numbers for the plurality of field periods have a field number that matches the field number read by the field number reading processing unit 436, and the field corresponding to the field number. The output processor 440 is controlled to output the voice signal of the period. For reference, the output processor 440 includes a buffer, in which the audio signal of each field period corresponding to the field number held at each stage of the FIFO unit 443 is held.

The operation of the output control processing unit 403 and the audio output control unit 406 will be described below.

The input video signal SVb is supplied to the field number separator 431 and also to the input sync signal extractor 437. The field number separator 431 separates the field number from the input video signal SVb, and supplies the video signal from which the field number is separated to the output processor 432. Thereafter, the output processor 432 outputs the output video signal SVout.

The field number separated by the field number separator 431 is supplied to the field number acquisition unit 433. The field number acquisition unit 433 acquires the field number in accordance with the synchronization signal extracted by the input synchronization signal extraction unit 437. The field number acquired by the field number acquisition unit 433 is written into the FIFO unit 435 through the write processing unit 434. Thereafter, the field number reading processing section 436 reads out the field number for each field period from the FIFO section 435 in accordance with the synchronization signal generated by the output synchronizing signal generating section 438.

Here, the field numbers read out by the field number reading processing unit 436 for each field period correspond to the video signals output from the output processing unit 432.

In addition, the input voice signal SAa is supplied to the field number separator 439. The field number separator 439 separates the field number from the input voice signal SAa, and supplies the voice signal from which the field number is separated to the output processor 440. Thereafter, this output processor 440 outputs an output audio signal SAout.

The field number separated by the field number separator 439 is supplied to the field number acquisition unit 441. The field number acquisition unit 441 acquires the field number in accordance with the synchronization signal extracted by the input synchronization signal extraction unit 437. The field number acquired by the field number acquisition unit 441 is written into the FIFO unit 443 via the write processing unit 442. Thereafter, the field number reading processing unit 444 reads field numbers for a plurality of field periods for each field period from each stage of the FIFO unit 443 in accordance with the synchronization signal generated by the output synchronization signal generation unit 438. do.

Further, the field number reading processing unit 444 checks whether the field numbers for the plurality of field periods have a field number that matches the field numbers read out from the FIFO unit 435 by the field number reading processing unit 436, The output processor 440 is controlled to output the audio signal of the field period corresponding to the field number.

The operation of the information signal processing apparatus 400 shown in FIG. 12 will be described below.

The input video signal SVin is supplied to the extended DRC processing unit 401. The extended DRC processing unit 401 performs a DRC processing (high definition processing) on the input video signal SVin. The extended DRC processing unit 401 acquires the video signal SVa to which the field number is added for each field period. The processed video signal SVa is subjected to arbitrary noise reduction processing by the noise reduction processing unit 402 and then supplied to the output control processing unit 403. Thereafter, this output control processing unit 403 outputs the output video signal SVout to the display 404, and the display 404 displays the video by this output video signal SVout.

The input voice signal SAin is supplied to the voice control unit 405. The audio control unit 405 acquires the audio signal SAa to which the same field number is added as the field number added for each field period of the video signal SVin, corresponding to each field period of the video signal SVin. This audio signal SAa is supplied to the audio output control unit 406.

The audio output control unit 406 outputs the output video signal output from the output control processing unit 403 based on the field number separated from the video signal SVb and the field number separated from the audio signal SAa in the above-described output control processing unit 403. The output audio signal SAout corresponding to each field period of SVout is output. This output audio signal SAout is supplied to the speaker 407, and the speaker 407 outputs audio by the output audio signal SAout.

As mentioned above, according to the information signal processing apparatus 400 shown in FIG. 12, the audio output control part 406 outputs from the output control processing part 403 based on the field number added to the video signal and the audio signal, respectively. The audio signal SAout corresponding to each predetermined period of the video signal SVout to be outputted is output. In this way, the video signal SVout and the audio signal SAout are synchronized with each other, and the lip sync is adjusted correctly.

Next, a fifth embodiment of the present invention will be described. Fig. 16 shows a configuration of an information signal processing apparatus 500 as a fifth embodiment of the present invention. In Fig. 16, parts corresponding to those shown in Figs. 9 and 12 are given the same reference numerals, and detailed description thereof is omitted as appropriate.

The information signal processing apparatus 500 includes an extended DRC processing unit 401, a noise reduction processing unit 402, an output control processing unit 403, and a display 404. These components are the same as those of the information signal processing apparatus 400 shown in FIG. In addition, the information signal processing apparatus 500 includes a voice input control unit 303, a voice output control unit 307, a speaker 309, and a bus 310. This component is the same as that of the information signal processing apparatus 300 shown in FIG.

17 shows the configuration of the extended DRC processing unit 401 and the voice input control unit 303. In FIG. 17, the same reference numerals are given to the components corresponding to those of FIGS. 10 and 14, and detailed description thereof will be omitted as appropriate.

The extended DRC processing unit 401 is similar to the extended DRC processing unit 401 in the information signal processing apparatus 400 shown in FIG. 14, and includes a determination unit 411, a switch (SW) 412, and a field number separator ( 413, high definition processor 414, synthesizer 415, field number generator 416, write processor 417, FIFO unit 418, field number read processor 419, input sync signal extractor 420 ) And an output synchronization signal generator 421.

The voice input control unit 303 is similar to the voice input control unit 303 in the information signal processing apparatus 300 shown in FIG. 10. The field number receiving unit 331, the write processing unit 332, and the FIFO unit 333 are provided. And a field number read processing unit 334.

In FIG. 10, the field number receiving unit 331 receives the field number generated by the field number generating unit 321 of the input control unit 302, but the field number receiving unit 331 of this embodiment uses the field of the extended DRC processing unit 401. The field number generated by the number generator 416 is received. In addition, in Fig. 10, the field number reading processing unit 334 reads the field number in accordance with the synchronization signal SYNCb from the DRC processing unit 301, but the field number reading processing unit 334 of this embodiment outputs the extended DRC processing unit 401. The generation in the synchronization signal generation unit 421 reads the field number in accordance with the synchronization signal.

The operation of the extended DRC processing unit 401 is the same as described with reference to FIG. 14. The synthesizing unit 415 inserts the field number in the blanking period after the video signal has been subjected to the high quality processing by the high quality processing unit 414. The synthesizing unit 415 also outputs the processed video signal SVa to which the field number is added in synchronization with the synchronizing signal generated by the output synchronizing signal generating unit 421.

In addition, the operation of the voice input control unit 303 is the same as described with reference to FIG. 10. The field number received by the field number receiving unit 331 is written into the FIFO unit 333 through the writing processing unit 332. Thereafter, the field number reading processing unit 334 reads out the field number IDa from the FIFO unit 333 and sends it to the bus 310.

18 shows the detailed configuration of the output control processing unit 403 and the audio output control unit 307. In Fig. 18, those corresponding to the elements in Figs. 11 and 15 are given the same reference numerals, and detailed description thereof will be omitted as appropriate.

The output control processing unit 403 is similar to the output control processing unit 403 in the information signal processing apparatus 400 shown in FIG. 15, and has a field number separating unit 431, an output processing unit 432, and a field number obtaining unit 433. ), A write processing unit 434, a FIFO unit 435, a field number read processing unit 436, an input synchronization signal extraction unit 437, and an output synchronization signal generation unit 438.

The voice output control unit 307 is similar to the voice output control unit 307 in the information signal processing apparatus 300 shown in FIG. 11, and has a field number acquisition unit 371, a write processing unit 372, and a FIFO unit 373. ), A voice number reading processing unit 374, and a buffer 375.

In Fig. 11, the field number acquisition unit 371 acquires the field number IDa from the bus 310 in accordance with the synchronization signal SYNCc supplied from the output processing unit 305, but the field number acquisition unit 371 of this embodiment is the output control processing unit. The field number IDa is obtained from the bus 310 in accordance with the synchronization signal extracted by the input synchronization signal extraction unit 437 of 403. In addition, in Fig. 11, the voice number reading processing unit 374 reads the field number from each stage of the FIFO unit 373 according to the synchronization signal SYNCd supplied from the output processing unit 305, and simultaneously the video of the output control unit 306. Although the arbitrary number using the field number read out by the number number reading processing section 364 has been executed, the voice number reading processing section 374 is generated by the synchronization signal generation section 438 of the output control processing section 403 in this embodiment. The field number is read from each stage of the FIFO unit 373 according to the obtained synchronization signal, and an arbitrary process is executed using the field number read by the field number read processing unit 436 of the output control processing unit 403.

The operation of the output control processing unit 403 is the same as that described in FIG. The output processor 432 outputs the output video signal SVout. In addition, the field number reading processing unit 436 sequentially reads, from the FIFO unit 435, field numbers corresponding to each field period of the video signal output from the output processing unit 432.

In addition, the operation of the voice input control unit 307 is the same as that described with reference to FIG. 11. That is, the field number acquisition unit 371 acquires the field number IDa for each field period from the bus 310. This field number IDa is written to the FIFO unit 373 via the write processing unit 372. Thereafter, the voice number reading processing unit 374 reads the field number IDa for the plurality of field periods from each stage of the FIFO unit 373. Then, the field number read processing unit 436 checks whether the field number IDa for the plurality of field periods has a field number that matches the field number read out from the FIFO unit 435, and the buffer 375 The audio signal of the field period corresponding to the field number is controlled to be output.

The operation of the information signal processing apparatus 500 shown in FIG. 16 will be described below.

The input video signal SVin is supplied to the extended DRC processing unit 401. The extended DRC processing unit 401 performs DRC processing (high definition processing) on the input video signal SVin to obtain the processed video signal SVa to which the field number is added for each field period. The processed video signal SVa is subjected to a noise reduction process by the noise reduction processing unit 402 and then supplied to the output control processing unit 403. Thereafter, this output control processing unit 403 outputs the output video signal SVout to the display 404. The display 404 displays the image by the output image signal SVout.

 The input audio signal SAin (SAa) corresponding to the input video signal SVin is supplied to the audio output control unit 307. This audio output control part 307 acquires the field number IDa transmitted via the bus 310 for every field period. The audio output control unit 307 is based on the field number IDa described above and the field number separated from the video signal by the output control processing unit 403 in each of predetermined periods of the video signal SVout output from the output control processing unit 403. The corresponding audio signal SAout is output. This audio signal SAout is supplied to the speaker 309, and the speaker 309 outputs audio by the audio signal SAout.

According to the information signal processing apparatus 500 shown in FIG. 16, the audio output control unit 307 is assigned to the field number added to the video signal and the field number IDa transmitted from the extended DRC processing unit 301 via the bus 310. Based on this, the audio signal SAout corresponding to each of a predetermined period of the video signal SVout output from the output control processing unit 403 can be output. In this way, the video signal SVout and the audio signal SAout are synchronized with each other, and the lip sync is accurately adjusted.

In the above-described embodiments, the case where the predetermined period is the field period is shown respectively, but the present invention is not limited thereto. Alternatively, the predetermined period may be a plurality of field periods. Further, in the above-described embodiments, the meta information corresponding to each predetermined period is shown as field number as an identifier for identifying a field and signal type information for identifying whether a video signal or a non-video signal, respectively. It is not limited to this. Alternatively, for example, time information as meta information may be transmitted from the first processing unit to the second processing unit, and the second processing unit may execute a process using this time information.

The apparatus and method for processing information signals related to the above-described embodiments of the present invention can be applied to a processing apparatus capable of executing a plurality of processes for information signals such as a video signal and an audio signal.

Of course, various modifications, combinations, subcombinations, and changes may be made by those skilled in the art according to design requirements and other factors within the scope of the appended claims or their equivalents.

Claims (10)

An apparatus for processing information signals, A first processor for receiving the information signal, executing a first process on the information signal, and outputting the processed information signal; A second processor disposed at a rear end of the first processor, for receiving the processed information signal and executing a second process on the processed information signal; And Transmission device for transmitting meta-information corresponding to every predetermined period of the information signal from the first processing unit to the second processing unit Including; The information signal processing apparatus according to claim 2, wherein the processing at the second processing unit is controlled based on the meta information transmitted by the transmission device. A method of processing an information signal, wherein a first process is executed in a first processor, and a second process is executed in a second processor disposed behind the first processor. Transmitting meta information corresponding to every predetermined period of the information signal from the first processing unit to the second processing unit; And Controlling the processing in the second processing unit based on the transmitted meta information; Information signal processing method comprising a. An apparatus for processing information signals, A first processor for receiving the information signal, executing a first process on the information signal, and outputting the processed information signal; An additional information generator for generating additional information for each of a predetermined period in the processed signal output from the first processor; A transmission path for transmitting the additional information generated by the additional information generator; A second processor disposed at a rear end of the first processor, for receiving the processed information signal and executing a second process on the processed information signal; And An additional information acquisition unit for acquiring the additional information from the transmission; Including; The information signal processing apparatus according to claim 2, wherein the processing in the second processing unit is controlled at predetermined intervals based on the additional information acquired by the additional information acquisition unit. The method of claim 3, The additional information includes signal type information indicating whether the received information signal is a video signal or a non-video signal. And the second processing unit outputs the received information signal when the signal type information indicates a video signal and outputs a blanking signal when the signal type information indicates a non-video signal. An apparatus for processing information signals, A first processing unit which receives the information signal, executes a first process on the received information signal, and adds the processed information signal to which an identifier is added every predetermined period; An additional information generator for generating additional information including the identifier in the processed information signal output from the first processing unit every predetermined period of time; A transmission path for transmitting additional information generated by the additional information generator; A second processor disposed at a rear end of the first processor, for receiving the processed information signal and executing a second process on the processed information signal; An additional information acquiring unit for acquiring the additional information from the transmission; And A separation unit for separating the identifier added to the processed information signal input to the second processing unit every predetermined period of time; Including; The processing in the second processing unit for the information signal of the predetermined period in which the predetermined identifier has been separated in the separating unit is based on the additional information including the predetermined identifier among the additional information obtained by the additional information obtaining unit. Controlled information signal processing apparatus. The method of claim 5, The additional information includes the identifier and signal type information indicating whether the received information signal is a video signal or a non-video signal. And the second processing unit outputs the received information signal when the signal type information indicates a video signal and outputs a blanking signal when the signal type information indicates a non-video signal. The method of claim 5, The first processing unit, An identifier generator for generating different identifiers in sequence every predetermined period when no identifier is added to the received information signal, and When no identifier is added to the received information signal, a synthesizer for adding the identifier generated in the identifier generator for every predetermined period of the processed information signal to obtain a processed information signal to which the identifier is added. An information signal processing apparatus comprising a portion. An apparatus for processing information signals, An image processor which receives an image signal, executes predetermined processing on the received image signal, and outputs the processed image signal; An image output processor disposed at a rear end of the image processor and configured to receive the processed information signal and perform an output process on the processed information signal; A first identifier generator for generating an identifier for each predetermined period of the video signal output from the image processor; An audio output processing unit for receiving an audio signal corresponding to the video signal and performing an output process on the audio signal; Generating an identifier identical to the identifier generated by the first identifier generator in predetermined periods of the video signal, corresponding to the predetermined periods of the video signal, with respect to the audio signal received by the audio output processing unit; 2 identifier generator; A transmission path for transmitting the identifier generated in the first identifier generator as a first identifier and the identifier generated in the second identifier generator as a second identifier; A first identifier acquiring unit for acquiring the first identifier from the transmission path; And A second identifier acquiring unit for acquiring the second identifier from the transmission path Including; The image output processing unit sequentially outputs a video signal of a predetermined period corresponding to the first identifier acquired by the first identifier acquisition unit, The audio output processing unit is based on a first identifier acquired by the first identifier acquisition unit and a second identifier acquired by the second identifier acquisition unit, respectively, in predetermined periods of the video signal output from the video output processing unit. An information signal processing apparatus that outputs a corresponding audio signal. An apparatus for processing information signals, An image processor which receives a video signal, executes a predetermined process on the received video signal, and outputs a processed video signal to which an identifier is added for each predetermined period; An audio processor for adding and outputting an audio signal corresponding to the video signal received by the video processor, the same identifier as that added to each predetermined period of the video signal, corresponding to each predetermined period of the video signal. ; An image output processor disposed at a rear end of the image processor and configured to receive the processed image signal and perform an output process on the received image signal; A voice output processor disposed at a rear end of the voice processor, for receiving a voice signal and executing an output process on the received voice signal; A first separator for separating an identifier added to the video signal received by the image output processor as a first identifier; And A second separator for separating an identifier added to the voice signal received by the voice output processor as a second identifier Including; The image output processing unit sequentially outputs an image signal of a predetermined period corresponding to the first identifier separated from the first separating unit, The audio output processing unit may be configured for each of a predetermined period of the video signal output from the video output processing unit based on the first identifier separated by the first separation unit and the second identifier separated by the second separation unit. An information signal processing apparatus that outputs a corresponding audio signal. An apparatus for processing information signals, An image processor which receives a video signal, executes a predetermined process on the received video signal, and outputs a processed video signal to which an identifier is added for each predetermined period; An image output processor disposed at a rear end of the image processor and configured to receive the processed image signal and perform an output process on the received image signal; A separation unit for separating an identifier added to the image signal received by the image output processing unit as a first identifier; An identifier generator which generates an identifier of the audio signal received by the audio output processor, and generates an identifier corresponding to each of the predetermined periods of the video signal, the same identifier added to each of the predetermined periods of the video signal; A transmission path for transmitting the identifier generated in the identifier generator as a second identifier; And An identifier acquisition unit for acquiring the second identifier from the transmission path Including; The image output processing unit sequentially outputs an image signal of a predetermined period corresponding to the first identifier separated by the separation unit, The audio output processing unit outputs an audio signal corresponding to each of a predetermined period of the video signal output from the video output processing unit based on the first identifier separated by the separation unit and the second identifier acquired by the identifier acquisition unit. Information signal processing device to output.

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