JP4592776B2 - Signal processing device - Google Patents

Description

  The present invention relates to a signal processing device, and in particular, a signal processing that can reduce an increase in circuit scale even when a plurality of devices connected to each other have an increased number of functions corresponding to processing of input signals. Relates to the device.

  For example, a digital VTR (Video Tape Recorder), a DVD (Digital Versatile Disc) player, or the like is used by being connected to a television receiver or the like in order to view reproduced images and sounds. That is, an image and sound reproduced by a digital VTR or the like are supplied to a television receiver, the image is displayed on a screen, and the sound is output from a speaker.

  As described above, when an image and sound reproduced by a digital VTR are output in a television receiver, some signal processing circuits included in the television receiver do not perform any particular processing. .

  That is, for example, when a component signal is output from a digital VTR, a signal processing circuit for converting a composite signal into a component signal in a television receiver does not need to perform any particular processing, and is in a state of being idle.

  On the other hand, as described above, when a television receiver and a digital VTR are connected, the signal processing circuit included in the television receiver and the signal processing circuit included in the digital VTR are capable of processing signals such as images and sounds. If processing can be shared and coordinated with each other, processing can be provided to users with higher quality images and sounds.

  By the way, as described above, when the signal processing circuits included in the mutually connected television receivers and digital VTRs are configured using modules (blocks) corresponding to the respective functions, The same number of modules as the number of functions to be provided is required. If the number of functions is increased, the number of modules also increases, and the circuit scale also increases.

  The present invention has been made in view of such a situation, and in a plurality of devices connected to each other, even when functions corresponding to processing of input signals increase, the increase in circuit scale can be reduced. It is something that can be done.

In the signal processing device according to the first aspect of the present invention, a connection unit to which another device that performs signal processing of the first function is connected, and the other device connected to the connection unit correspond to itself. determination means for determining whether a certain other device, to the input signal, by filtering, signal processing of the first function, and, second differs from the signal processing of the first function When the other device is determined to be the specific other device corresponding to itself by the signal processing unit that performs signal processing of the function 2 and the determination unit, the filter coefficient of the filter process is changed. And a control unit that changes the signal processing performed by the signal processing unit to only the signal processing of the second function, and the signal processing unit seeks to obtain without changing the physical configuration. Output data as output signal Specialized in one processing procedure that performs a product-sum operation on a prediction tap that is input image data as the input signal used for measurement and a tap coefficient as the filter coefficient for obtaining the output data A circuit for performing the above processing is arranged, and the input signal is processed by both the signal processing means and the other device.

The filtering process may be an adaptive process in which the tap coefficient is obtained by learning .

The adaptive processing classifies a class based on a level distribution pattern of the input signal, adaptively determines the tap coefficient according to the class, and performs a product-sum operation using the determined tap coefficient. Thus, a class classification adaptive process for processing the input signal can be performed.

In the signal processing device according to the second aspect of the present invention, a connection unit to which another device that performs signal processing of the first function is connected, and the other device connected to the connection unit correspond to itself. A determination unit that determines whether the device is a specific other device, a coefficient that is obtained in advance by learning in filter processing, and an arithmetic process that uses the coefficient and the input signal, , the signal processing of the first function, and a signal processing means for performing signal processing of the second function different from the signal processing of the first function, when the determination means determines, the other device, corresponding to itself And a control unit that changes the signal processing performed by the signal processing unit to only the signal processing of the second function by changing the coefficient when it is determined that the specific device is the specific other device. The signal processing means stores the coefficient. And an arithmetic processing unit that performs the arithmetic processing using the coefficient and the input signal in accordance with a signal from the control means, and the arithmetic processing unit does not change a physical configuration. A prediction tap that is input image data as the input signal used to predict output data as an output signal to be obtained, and a tap coefficient as the filter coefficient for obtaining the output data. It is configured as a circuit for performing a process specialized for one processing procedure for performing a product-sum operation.

In the first and second aspects of the present invention , a prediction tap which is input image data as an input signal used to predict output data as an output signal to be obtained without changing a physical configuration ; A circuit that performs a product-sum operation with a tap coefficient as a filter coefficient for obtaining output data and performs a process specialized for one processing procedure is provided.

  According to the aspect of the present invention, even when a plurality of devices connected to each other have more functions corresponding to processing of input signals, it is possible to reduce the increase in circuit scale.

  FIG. 1 is a perspective view showing a configuration example of an embodiment of a bay structure type television receiver to which the present invention is applied.

  A CRT (Cathode Ray Tube) 2 is arranged in the center of the front upper part of a TV (Television) rack 1 which is a housing of the apparatus, and an L (Left) channel and an R (Right) are placed on the left and right sides thereof. A channel speaker 3 is arranged.

  Further, six bays 4A, 4B, 4C, 4D, 4E, and 4F are provided in the lower front portion of the TV rack 1. Here, hereinafter, the bays 4A to 4F will be described as bays 4 unless it is particularly necessary to distinguish them.

  The bay 4 can accommodate, for example, a digital VTR, a DVD player, or the like as an electronic device that operates independently and has one or more signal terminals for inputting or outputting signals exposed to the outside. In addition, an in-bay connection panel 5 (FIG. 3), which will be described later, is provided on the inner front surface thereof, in which connection terminals for connection with signal terminals of electronic devices housed in the bay 4 are arranged. It has been.

  A bay 4G that is also formed in a concave shape is provided on the upper right side of the top surface of the TV rack 1. However, the bays 4A to 4F have a large concave shape so that a relatively large electronic device such as a digital VTR can be accommodated, whereas the bay 4G has, for example, a mobile phone or other PDA. It has a small concave shape so that a relatively small electronic device such as (Personal Digital Assistant) can be accommodated. In the bay 4G, an in-bay connection panel is provided in which connection terminals for connecting to signal terminals of electronic devices accommodated therein are arranged. However, since the in-bay connection panel provided in the bay 4G is connected to a signal terminal of a small electronic device such as a mobile phone, it is connected to a signal terminal of a large electronic device such as a digital VTR. This is different from the in-bay connection panel 5 provided in the bays 4A to 4F.

  FIG. 2 is a perspective view of the bay structure type television receiver of FIG. 1 in a state in which an electronic device is housed in the bay 4.

  2, the electronic devices 11 and 12 are directly stored in the bays 4A and 4D, respectively, and the electronic device 13 stored in the bay adapter box 14 is stored in the bay 4B. .

  That is, the electronic devices 11 and 12 are electronic devices compatible with the bay structure type television receiver (for example, electronic devices manufactured by the same manufacturer as the bay structure type television receiver), and use the bay adapter box 14. Even if not, it can be directly stored in the bay 4.

  On the other hand, the electronic device 13 is an electronic device that is not compatible with the bay structure type television receiver (for example, an electronic device manufactured by a manufacturer different from the bay structure type television receiver). The bay 4 can be stored.

  Note that the opening of the bay 4 (the same applies to the bay 4G) can be provided with a lid similar to that provided at the tape insertion port of the VTR, for example. In this case, an electronic device is accommodated. It is possible to prevent dust and the like from entering the bay 4 that is not present.

  Next, FIG. 3 is a plan view illustrating a configuration example of the in-bay connection panel 5 provided on the inner front surface of the bay 4.

  The in-bay connection panel 5 includes an RGB (Red, Green, Blue) output terminal 21, an RGB input terminal 22, an audio output terminal 23, an audio input terminal 24, and an output S (Separate (Special / Super)) terminal 25. Terminals for exchanging signals between electronic devices such as an input S terminal 26, an IEEE (Institute of Electrical and Electronics Engineers) 1394 terminal 27, a USB (Universal Serial Bus) terminal 28, and a power supply terminal 29 are provided. It has been.

  The RGB output terminal 21 is a terminal for outputting an RGB signal, which is an image signal (image data) obtained by the bay structure type television receiver, to an electronic device housed in the bay 4, and is an RGB input terminal 22. Is a terminal for inputting the RGB signal output from the electronic device housed in the bay 4 to the bay structure type television receiver. The audio output terminal 23 is a terminal for outputting the L and R channel audio signals obtained by the bay structure type television receiver to an electronic device housed in the bay 4, and the audio input terminal 24 is connected to the bay 4. This is a terminal for inputting the L and R channel audio signals output from the stored electronic device to the bay structure type television receiver. The output S terminal 25 is a terminal for outputting a luminance signal and a color signal, which are image signals obtained by the bay structure type television receiver, to an electronic device housed in the bay 4, and the input S terminal 26 is The terminal for inputting the luminance signal and the color signal output from the electronic device housed in the bay 4 to the bay structure type television receiver. The IEEE 1394 terminal 27 is a terminal for performing communication conforming to the IEEE 1394 standard between the bay structure type television receiver and the electronic device housed in the bay 4, and the USB terminal 28 is a bay structure type television. This is a terminal for performing communication conforming to the USB standard between the John receiver and the electronic device housed in the bay 4. The power terminal 29 is a terminal for supplying power from the bay structure type television receiver to the electronic device housed in the bay 4.

  In the embodiment shown in FIG. 3, RGB output terminal 21, RGB input terminal 22, audio output terminal 23, audio input terminal 24, output S terminal 25, input S terminal 26, IEEE 1394 terminal 27, USB terminal 28, The power terminal 29 is disposed at a fixed position of the in-bay connection panel 5.

  FIG. 4 is a perspective view showing a configuration example of the electronic device 11 (12) corresponding to the bay structure type television receiver as seen from the back side.

  The rear panel of the electronic device 11 includes an RGB input terminal 31, an RGB output terminal 32, an audio input terminal 33, an audio output terminal 34, an input S terminal 35, an output S terminal 36, an IEEE 1394 terminal 37, and a USB terminal 38. And a power supply terminal 39 and the like.

  The bay 4 of the bay structure type television receiver is configured to be large enough to accommodate the electronic device 11, and the RGB output terminal 21 to the power supply terminal 29 of the in-bay connection panel 5 are electronic When the device 11 is stored in the bay 4, the device 11 is disposed at a position where it is electrically connected to the RGB input terminal 31 to the power supply terminal 39 of the electronic device 11.

  Therefore, for the electronic devices 11 and 12 corresponding to the bay structure type television receiver, the user simply stores the electronic device 11 in the bay 4 and uses the electronic device 11 and the bay structure type without using a cable. A television receiver can be electrically connected.

  Further, by storing the electronic devices 11 and 12 in the bay 4 of the bay structure type television receiver, the electronic devices 11 and 12 are also electrically connected via the bay structure type television receiver. Therefore, the user can also electrically connect the electronic devices 11 and 12 by simply storing them in the bay 4 without using a cable.

  As described above, the user can easily connect the electronic devices by simply storing the electronic devices in the bay 4.

  In addition, when the electronic device accommodated in the bay 4 is a reproduction-only electronic device, for example, it is basically unnecessary to provide an input terminal for images, sounds, and the like for such an electronic device.

  On the other hand, the bay 4 is not limited to storing only a reproduction-only electronic device. For example, an electronic device capable of both recording and reproduction may be stored. Both an input terminal and an output terminal for images and sounds are provided.

  Accordingly, the in-bay connection panel 5 (FIG. 3) provided inside the bay 4 is provided with terminals that are electrically connected to the terminals at positions corresponding to all terminals of the electronic equipment that can be accommodated in the bay 4. It is desirable to leave. In this case, the terminals provided in the in-bay connection panel 5 may be in a state of being played depending on the electronic equipment stored in the bay 4, but there is no particular problem.

  Next, as described above, the electronic devices 11 and 12 correspond to the bay structure type television receiver, and the RGB output terminals 21 to power terminals 29 of the in-bay connection panel 5 are the electronic devices 11 and 12. When the electronic device 11 or 12 is stored in the bay 4, the electronic device 11 or 12 is disposed at a position where it is electrically connected to the RGB input terminal 31 to the power supply terminal 39 of the electronic device 11 or 12. Simply by storing in the bay 4, it is electrically connected to the bay structure type television receiver.

  However, since the electronic device 13 is not compatible with the bay structure type television receiver, the terminals of the electronic device 13 and the corresponding terminals of the in-bay connection panel 5 are not stored even when directly stored in the bay 4. The arrangement positions are different and are not always electrically connected, but rather, many are not connected.

  Therefore, the electronic device 13 that is not compatible with the bay structure type television receiver can be easily electrically connected to the bay structure type television receiver by using the bay adapter box 14. ing.

  That is, FIG. 5 is a perspective view showing a configuration example of the bay adapter box 14.

  The bay adapter box 14 is provided with a concave slot 14A so that the electronic device 13 can be accommodated from the front side. The electronic device 13 is housed in the bay adapter box 14 and is housed in the bay 4 of the bay structure type television receiver together with the bay adapter box 14 so as to be electrically connected to the bay structure type television receiver. It is like that.

  That is, the back panel portion 15 is provided on the back surface portion of the bay adapter box 14, and the back panel portion 15 includes an in-adapter connection panel 15 A that faces the slot 14 A and a back side of the bay adapter box 14. It is comprised with the adapter back panel 15B made into the front. That is, when the slot 14A side of the bay adapter box 14 is the front, the adapter connection panel 15A is provided on the front side, and the adapter back panel 15B is provided on the back side.

  FIG. 6 is a plan view showing a configuration example of the in-adapter connection panel 15A and the adapter back panel 15B.

  When an electronic device incompatible with the bay structure type television receiver (hereinafter, appropriately referred to as non-compliant electronic device) is housed in the bay adapter box 14 in the in-adapter connection panel 15A. In addition, a corresponding connection terminal is provided at a position where it is connected to a signal terminal provided on the rear panel of the non-compliant electronic device.

  Here, for non-compliant electronic devices, for example, the arrangement positions of the signal terminals are different for each manufacturer. Therefore, in the adapter connection panel 15A, as shown in FIG. 6 (A), for each manufacturer, a fixed position corresponding to the signal terminal provided on the rear panel of the non-compliant electronic device of the manufacturer is provided. A terminal connected to the signal terminal is provided. In FIG. 6A, in-adapter connection panels 15 for non-compliant electronic devices of Company A, Company B, and Company C are shown.

  On the other hand, as shown in FIG. 6B, the adapter back panel 15B has fixed positions corresponding to the RGB output terminals 21 to the power supply terminals 29 provided on the in-bay connection panel 5 (FIG. 3). In addition, RGB input terminals 41 to power supply terminals 49 are respectively provided. Therefore, when the bay adapter box 14 is housed in the bay 4 so that the adapter back panel 15B and the in-bay connection panel 5 of the bay 4 face each other, the RGB input terminal 41 to the power supply provided on the adapter back panel 15B. The terminal 49 is electrically connected to the RGB output terminal 21 to the power supply terminal 29 provided on the in-bay connection panel 5 in the bay 4, respectively.

  The terminals provided on the adapter connection panel 15A are connected to corresponding ones of the RGB input terminal 41 to the power supply terminal 49 provided on the adapter back panel 15B. Even if it exists, it accommodates in the bay adapter box 14 which has the connection panel 15A in adapter corresponding to the non-corresponding electronic device, and also accommodates the bay adapter box 14 in which the non-corresponding electronic device is accommodated in the bay 4. Thus, the non-compliant electronic device is electrically connected to the bay structure type television receiver (moreover, another electronic device housed in the bay 4 via the bay structure type television receiver). become.

  From the above, the user can easily connect to non-compliant electronic devices.

  By the way, as described above, the non-compliant electronic device can be easily connected to the bay structure type television receiver via the bay adapter box 14 as described above. The entire bay adapter box 14 having the in-adapter connection panel 15A corresponding to the above must be prepared.

  Therefore, for example, as shown in FIG. 7, the bay adapter box 14 can be configured such that the back panel portion 15 can be attached to and detached from other portions. In this case, it is not necessary to prepare the entire bay adapter box 14 for each manufacturer of incompatible electronic devices, and only the rear panel unit 15 needs to be replaced. Further, in this case, the non-compliant electronic device can be stored in the bay 4 in a state where the terminal provided on the connection panel 15A in the adapter of the rear panel unit 15 is fitted into (connected to) the terminal on the rear surface. Is possible. That is, the connection between the non-compliant electronic device and the bay structure type television receiver is performed by housing the entire bay adapter box 14 containing the non-compliant electronic device in the bay 4, and the non-compliant electronic device is an adapter. The rear panel unit 15 connected to the inner connection panel 15A can be housed in the bay 4 together with the non-compliant electronic device.

  In addition, the back panel unit 15 is configured so that the in-adapter connection panel 15A and the adapter back panel 15B are integrated, and the in-adapter connection panel 15A and the adapter back panel 15B can be separated. Is possible.

  Further, for example, as shown in FIG. 8, the back panel unit 15 can be configured such that only the adapter back panel 15 </ b> B can be separated from the bay adapter box 14.

  Here, in the embodiment of FIG. 8, the separable adapter back panel 15B is provided with a male pin group 16B composed of a plurality of male pins, and the bay adapter box 14 has a plurality of female pins. A female pin group 16A is provided. When the bay adapter back panel 15B is attached to the bay adapter box 14, each male pin constituting the male pin group 16B of the adapter back panel 15B becomes a corresponding female pin constituting the female pin group 16A of the bay adapter box 14. The bay adapter back panel 15B is thereby electrically connected to the in-adapter connection panel 15A on the bay adapter box 14 side. That is, the RGB input terminal 41 to power supply terminal 49 provided on the adapter back panel 15B are electrically connected to predetermined male pins constituting the male pin group 16B, and are provided on the adapter internal connection panel 15A. Are electrically connected to predetermined female pins constituting the female pin group 16A. Then, each male pin constituting the male pin group 16B of the adapter back panel 15B is fitted into a corresponding female pin constituting the female pin group 16A of the bay adapter box 14, whereby the female pin group 16A and the male pin are arranged. Via the group 16B, the RGB input terminals 41 to the power supply terminal 49 provided on the adapter back panel 15B and the corresponding terminals provided on the adapter connection panel 15A are electrically connected.

  Next, as described above, in the in-adapter connection panel 15A, when providing a connection terminal connected to the signal terminal at a fixed position corresponding to the position of the signal terminal of each manufacturer's incompatible electronic device, For example, as shown in FIG. 7, even if the rear panel unit 15 is configured to be detachable, the signal terminal is fixed at a fixed position corresponding to the position of the signal terminal of the non-compliant electronic device of each manufacturer. The rear panel portion 15 having the in-adapter connection panel 15A is required.

  FIG. 9 is a perspective view showing a configuration example of the back panel unit 15 that can cope with a plurality (or all) of non-compliant electronic devices of manufacturers.

  That is, in the embodiment of FIG. 9, the terminals 53 and 54 provided on the in-adapter connection panel 15A and connected to the signal terminals of the non-compliant electronic device can be moved. That is, the terminals 53 and 54 can be moved to positions where they are connected to signal terminals of non-compliant electronic devices.

  In the embodiment of FIG. 9, only two terminals 53 and 54 are shown on the in-adapter connection panel 15 </ b> A in order to avoid making the figure complicated.

  In the embodiment of FIG. 9, the in-adapter connection panel 15 </ b> A includes a plurality of slit plates 51.

  That is, the slit plate 51 is formed of, for example, a conductive flat plate (thin film), and each slit plate 51 is provided with slits (holes) 52 in a lattice shape. The terminal 53 (54) can be moved along the slit 52 as shown by an arrow in FIG.

  FIG. 10 is a side sectional view of the in-adapter connection panel 15A shown in FIG.

  The plurality of slit plates 51 are sandwiched and bonded by the insulator 62, and the insulator 62 on the adapter back panel 15 </ b> B side is fixed to the bottom plate 61. It should be noted that the insulator 62 is disposed with an interval larger than the interval between the slits 52 provided in the slit plate 51.

  Further, an insulating film 66 is formed on the surface of the slit plate 51 closest to the terminal 53 (54). The insulating film 66 prevents the terminals 53 and 54 from being electrically connected to the one that is closest to the terminal 53 among the plurality of slit plates 51.

  A rod-like body 63 (67) having a diameter slightly smaller than the width of the slit 51 is attached to the terminal 53 (same as the terminal 54), and the body 63 slides along the slit 51. Thus, the terminal 53 can be moved to an arbitrary position on the slit 51.

  Further, a contact fitting 64 (68) made of a conductor is fixed to the end of the body portion 63 where the terminal 53 is not attached, and the contact fitting 64 is connected to the plurality of slit plates 51. It comes in contact with certain of them. Here, in the embodiment of FIG. 10, the contact metal fitting 64 attached to the body portion 63 of the terminal 53 is in contact with the two slit plates 51 on the bottom plate 61 side most.

  Each of the plurality of slit plates 51 is connected to a predetermined one of the RGB input terminals 41 to the power supply terminals 49 provided on the adapter back panel 15B. , The contact metal fitting 64 and the slit plate 51 are electrically connected to a predetermined one of the RGB input terminal 41 to the power supply terminal 49 provided on the adapter back panel 15B.

  Note that the body portion 67 of the terminal 54 is shorter than the body portion 63 of the terminal 53, so that the contact fitting 68 fixed to the body portion 67 of the terminal 54 is fixed to the body portion 63 of the terminal 53. The slit plate 51 on the terminal 53 (54) side is in contact with the slit plate 51 with which the contact metal fitting 64 is in contact. As a result, the terminal 53 is electrically connected to the corresponding terminal of the adapter back panel 15B, and the terminal 54 is also electrically connected to the corresponding terminal of the adapter back panel 15B.

  Further, the body portion 63 of the terminal 53 (same as the body portion 67 of the terminal 54) has an insulating film formed on the surface thereof, so that the terminal 53 other than the slit plate 51 with which the contact fitting 64 contacts. The electrical connection with the slit plate 51 is prevented.

  As shown in FIG. 11, a threaded portion 65 is provided at the end of the body portion 63 on the terminal 53 side. Further, a screw is also cut inside the terminal 53, and the terminal 53 is screwed into the screw portion 65 of the body portion 63.

  When the terminal 53 is viewed from the terminal 53 side, for example, when it is rotated counterclockwise, the screw is loosened, and the terminal 53 is separated from the insulating film 66 and the contact fitting 64 of the body portion 63 as shown in FIG. However, it leaves | separates from the slit board 51. FIG. As a result, the terminal 53 becomes movable along the slit 52 together with the body portion 63.

  In the embodiment of FIG. 11, illustration of the terminal 54, the body portion 67, and the contact fitting 68 is omitted, but the terminal 54 also moves along the slit 52 in the same manner as the terminal 53. Can be done.

  On the other hand, when the terminal 53 is viewed from the terminal 53 side, for example, when it is rotated clockwise, the screw is tightened, and as shown in FIG. 10, the end of the terminal 53 on the insulating film 66 side is the insulating film 66. Further, the contact metal fitting 64 of the body part 63 is pressed against the slit plate 51 to be originally contacted with a predetermined pressure. As a result, the terminal 53 is fixed at a predetermined position along the slit 52, and is further electrically connected to the slit plate 51 via the body portion 64 and the contact fitting 64.

  Next, FIG. 12 is a perspective view showing another configuration example of the back panel unit 15 that can move the terminals 53 and 54 connected to the signal terminals of the non-compliant electronic device.

  In the embodiment of FIG. 12, a large number of insertion openings (holes) 71 are provided, and the terminals 53 and 54 can be moved to any position of the large number of insertion openings 71. ing.

  That is, the terminal 53 has, for example, a pin jack-shaped body portion 53A that can be inserted into the insertion port 71. By inserting the body portion 53A into the insertion port 71, the terminal 53 is inserted into the insertion portion 71. It is fixed at the position of the mouth 71.

  Note that the body portion 53A of the terminal 53 and the body portion 54A of the terminal 54 have different lengths, and accordingly, the case where the body portion 53A of the terminal 53 is inserted into the insertion port 71 and the body portion of the terminal 54. When 54A is inserted into the insertion port 71, the adapter rear panel 15B is electrically connected to different terminals.

  Next, FIG. 13 is a perspective view showing still another configuration example of the back panel unit 15 that can move the terminal of the in-adapter connection panel 15A. In the figure, parts corresponding to those in FIG. 8 are denoted by the same reference numerals.

  In the embodiment of FIG. 13, the adapter back panel 15B of the back panel unit 15 is detachable as described in the embodiment of FIG.

  Further, in the embodiment shown in FIG. 13, the in-adapter connection panel 15 </ b> A is composed of a plurality of connection plates 81. U-shaped fitting slits 82L and 82R are provided on the left and right sides of the bay adapter box 14, and the connection plate 82 is fixed by being fitted into the fitting slits 82L and 82R. Yes. The connecting plate 81 can be easily attached and detached by sliding along the fitting slits 82L and 82R.

  For example, as shown in FIG. 14A, the connecting plate 81 is formed with a frame 88 in a lattice shape, and a patch plate 83 (to be described later) is fitted on the inner peripheral surface of the frame 88. A frame groove 87 as a groove that can be formed is formed. A frame hole 85 that is a hole (space) divided by the frame 88 is a flat plate shape shown in the perspective view of FIG. 14B, the side view of FIG. 14C, and the plan view of FIG. The patch plate 83 is configured in substantially the same size as the patch plate 83, and the outer peripheral portion of the patch plate 83 is fixed to the frame hole 85 by fitting into a frame groove 87 formed on the inner periphery of the frame 88. Can be done.

  As shown in FIGS. 14B to 14D, the patch plate 83 is provided with a terminal 84. Therefore, the patch hole 83 is changed by changing the frame hole 85 into which the patch plate 83 is fitted. The arrangement position of the terminals 84 provided on the plate 83 can be moved.

  The terminal 84 is electrically connected to the frame 88 when the patch plate 83 is fitted into the frame 88. Further, the connection plate 81 is provided with a connection terminal 86 at an outer peripheral portion that fits into the fitting slit 82R (FIG. 13), and the frame 88 is electrically connected to the connection terminal 86. Further, as shown in FIG. 14E, the fitting slit 82R is provided with a conductive portion 89, and the connection terminal 81 is fitted into the fitting slit 82R so that the connection terminal 86 is connected to the conductive portion 89. And electrically connected. The conductive portion 89 is connected to a predetermined terminal of the adapter back panel 15B via the female pin group 16A and the male pin group 16B. Therefore, the patch plate 83 is fitted in the frame 88. The terminal 84 is electrically connected to a predetermined terminal of the adapter back panel 15B through the patch plate 83, the frame 88, the connection terminal 86, the conductive portion 89, and the female pin group 16A and the male pin group 16B.

  Here, in each of the plurality of connection plates 81, the connection terminal 86 is provided at a different position, and the conductive portion 89 of the fitting slit 82R is connected to the connection terminal 81 of the connection plate 81 fitted into the fitting slit 82R. 86 is provided at a position corresponding to 86. Therefore, the connection terminal 86 of the connection plate 81 is connected to the conductive portion 89 provided in the fitting slit 82R when the connection plate 81 is fitted into the correct fitting slit 82R. Thus, even when the connecting plate 81 is inserted into the wrong fitting slit 82R, the conductive portion 89 is connected via the terminal 84 fitted into the connecting plate 81, the female pin group 16A, and the male pin group 16B. The terminal of the adapter back panel 15B connected to the terminal (the terminal that is not the terminal to be connected to the terminal 84) is prevented from being electrically connected.

  In addition, for example, by configuring the connection plate 81 and the fitting slits 82L and 82R so that the connection plate 81 can be fitted only into the fitting slits 82L and 82R into which the connection plate 81 is to be fitted, It is also possible to prevent electrical connection between the terminal 84 fitted into the connection plate 81 and the terminal of the adapter back panel 15B, which should not be connected originally.

  When the patch plate 83 is fitted into the frame hole 85, the terminal 84 fixed at a predetermined position of the connection plate 81 is directly or in front thereof (the slot 14A (FIG. 5) in the bay adapter box 14 in FIG. 13). It is exposed in the opening direction of the slot 14A in the bay adapter box 14 through the frame hole 85 of the connecting plate 81 arranged on the open side), and thus is not accommodated in the slot 14A of the bay adapter box 14 Connected to the terminals of electronic equipment.

  As described above, when the terminal connected to the signal terminal of the incompatible electronic device provided on the in-adapter connection panel 15A can be moved, the bay adapter box 14 is provided for each manufacturer of the incompatible electronic device. In addition, since it is not necessary to prepare the rear panel unit 15, it is possible to reduce the cost burden on the user.

  As described above, when the terminal of the in-adapter connection panel 15A is movable, it may be difficult to know which terminal should be moved to which position. Therefore, for example, it is preferable to describe the position of the terminal for each manufacturer of the incompatible electronic device in the in-adapter connection panel 15A or the like.

  Here, the terminals provided on the adapter connection panel 15A are configured to be movable so as to deal with non-compliant electronic devices of each manufacturer. The RGB output terminal 21 to the power supply terminal 29 provided on the inner connection panel 5 (FIG. 3) can be configured to be movable. In this case, even if the bay adapter box 14 (or the back panel unit 15) is not used, the non-compliant electronic device and the bay structure type television receiver can be electrically connected.

  Next, FIG. 15 is a block diagram showing an electrical configuration example of the bay structure type television receiver of FIG.

  A remote commander (hereinafter referred to as “remote control” as appropriate) 101 switches a signal input / output between electronic devices by selecting a television broadcast channel to be viewed, adjusting a volume, and further using a selector 104 described later. When the user operates, a signal corresponding to the operation is transmitted to the main controller 102 by infrared rays. 1 and 1, the remote controller 101 is not shown.

  The main controller 102 controls the selector controller 103 according to the infrared signal from the remote controller 101 and the like, and controls each block constituting the bay structure type television receiver as necessary.

  The selector controller 103 controls the selector 104 in accordance with the control of the main controller 102 or the like.

  The selector 104 is connected to the CRT 2, the speaker 3, the tuner 105, and the TV signal processing unit 106. Further, the selector 104 is also connected to the terminals of the in-bay connection panel 5 provided in each of the bays 4A to 4G. And the selector 104 switches the output destination of the input signal input there according to control of the selector controller 103.

  The tuner 105 is supplied with a television broadcast signal (hereinafter referred to as a TV signal as appropriate) received by an antenna (not shown). The tuner 105 is controlled according to the control of the main controller 102. The TV signal of the channel is detected and demodulated, and the baseband signal is output to the selector 104.

  The TV signal processing unit 106 processes an image signal output from the selector 104 (for example, a baseband image signal output from the tuner 105), and outputs an image signal obtained as a result of the processing to the selector 104.

  The CRT 2 displays an image signal output from the selector 104, and the speaker 3 outputs an audio signal output from the selector 104.

  Of the above, the CRT 2, the speaker 3, the tuner 105, and the TV signal processing unit 106 function as a television receiver as an electronic device.

  Next, FIG. 16 shows a configuration example of the TV signal processing unit 106 of FIG.

  The TV signal processing unit 106 includes an I / F (Interface) 111, a controller 112, and a signal processing circuit 113.

  The I / F 111 controls the exchange of signals with the selector 104, the controller 112, and the signal processing circuit 113.

  The controller 112 determines whether or not an electronic device is housed in the bay 4 and is electrically connected to the selector 104 through the I / F 111 and the selector 104, and based on the determination result, the signal processing circuit 113. To control. Here, various methods are conceivable as a method for determining the presence / absence of the connection. For example, a method for determining based on a signal from an electric device housed in the bay 4 may be employed.

  Further, the controller 112 stores a function ID and an ID table. The function ID is a unique ID (Identification) for identifying what function the signal processing circuit 113 has, and processing information as described later is associated with the function ID in the ID table. It has been.

  The signal processing circuit 113 basically includes, for example, a function of converting an image signal of a composite signal into an image signal of a component signal, and an image signal of a standard resolution of the component signal (hereinafter referred to as SD (Standard Definition) as appropriate). A function of converting an image signal) into a high-resolution image signal (hereinafter, referred to as an HD (High Definition) image signal as appropriate). However, the signal processing circuit 113 can change its function under the control of the controller 112.

  Next, FIG. 17 shows an example of the electrical configuration of the electronic device 11 housed in the bay 4. As described above, the electronic device 11 is an electronic device compatible with the bay structure type television receiver (hereinafter, referred to as a corresponding electronic device as appropriate), but the compatible electronic device is not limited to the electronic device 11. The configuration is as shown in FIG.

  The electronic device 11 includes an I / F 121, a controller 122, a signal processing circuit 123, and a specific block 124.

  The I / F 121, the controller 122, or the signal processing circuit 123 is configured similarly to the I / F 111, the controller 112, or the signal processing circuit 113 in FIG.

  The specific block 124 is a block specific to the electronic device 11. For example, when the electronic device 11 is a DVD player, the specific block 124 irradiates a DVD (not shown) with laser light and receives the reflected light. And an optical pickup that performs photoelectric conversion. In addition, when the electronic device 11 is, for example, a digital VTR, the specific block 124 includes a drive mechanism that drives a video tape, a magnetic head that records / reproduces signals with respect to the video tape, and the like. The

  When the electronic device 11 is a DVD player, for example, the signal recorded on the DVD is MPEG (Moving Picture Expert Group) encoded. In addition, it has a function of MPEG-decoding an MPEG-encoded signal. However, in the present embodiment, it is assumed that the signal processing circuit 123 further has a function of performing, for example, a spatial resolution improvement process.

  Next, the operation of the TV signal processing unit 106 in FIG. 16 will be described with reference to the flowchart in FIG.

  First, in step S1, the controller 112 checks whether or not the electronic device is electrically connected via the I / F 111 and the selector 104, and proceeds to step S2. In step S2, the controller 112 determines whether or not the electronic device is electrically connected based on the result of the check in step S1.

  If it is determined in step S2 that there is no electronic device electrically connected to the TV signal processing unit 106, that is, no electronic device is stored in the bay 4, or an electronic device is stored in the bay 4. However, if the selector 104 is not selected so that the electronic device and the TV signal processing unit 106 are electrically connected to each other, the process proceeds to step S3, and the controller 112 113 is instructed to perform processing by a normal function. Thereby, in step S3, the signal processing circuit 113 performs normal signal processing, and then ends the processing.

  That is, when the TV signal processing unit 106 is not connected to another electronic device, the tuner 105 (FIG. 15) extracts a baseband signal of a predetermined channel from the TV signal, and via the selector 104, This is supplied to the TV signal processing unit 106. In the TV signal processing unit 106, the I / F 111 receives a baseband image signal supplied via the selector 104 and supplies it to the signal processing circuit 113. The signal processing circuit 113 performs a composite / component conversion process for converting a composite signal into a component signal for an image signal from the I / F 111, and a space for improving a spatial resolution by converting an SD image signal into an HD image signal. It has a function of performing resolution improvement processing in a batch, performs processing based on that function, and further supplies the HD image signal of the component signal obtained as a result to the CRT 2 via the I / F 111 and the selector 104 . As a result, HD images that are high-resolution images are displayed on the CRT 2.

  On the other hand, if it is determined in step S2 that there is an electronic device that is electrically connected to the TV signal processing unit 106, that is, the electronic device is stored in the bay 4, and if necessary, If the selector 104 is selected so that the electronic device and the TV signal processing unit 106 are electrically connected, the process proceeds to step S4, and the controller 112 passes through the I / F 111 and the selector 104. A function ID is requested to an electronic device (hereinafter, appropriately referred to as a connected device) electrically connected to the TV signal processing unit 106, and the process proceeds to step S5.

  In step S5, the controller 112 determines whether or not the function ID has been transmitted from the connected device in response to the function ID request in step S4. If it is determined in step S5 that the function ID has not been transmitted from the connected device, the process proceeds to step S3, and basically the same processing as described above is performed.

  That is, the fact that the function ID is not transmitted from the connected device means that the connected device is not a compatible electronic device such as the electronic device 11 shown in FIG. In the TV signal processing unit 106, when the connected device is not a compatible electronic device, that is, when the connected device is a non-compatible electronic device, the signal processing circuit 113 causes the selector 104 and the I / F 111 to be switched from the non-compatible electronic device. The same processing as described above is performed on the image signal supplied via the network.

  On the other hand, if it is determined in step S5 that the function ID has been transmitted from the connected device, the process proceeds to step S6, where the controller 112 receives the function ID from the connected device and refers to the ID table based on the function ID. As a result, processing sharing is recognized, and a signal path is further set.

  That is, in the ID table, the function ID of the electronic device is associated with the processing information indicating the content of the processing to be performed by the signal processing circuit 113 when connected to the electronic device having the function ID. The controller 112 recognizes processing information associated with the function ID received from the connected device. Then, the controller 112 recognizes the process represented by the process information as a process to be shared by the signal processing circuit 113.

  Here, when the TV signal processing unit 106 is electrically connected to the corresponding electronic device, the TV signal processing unit 106 cooperates with the corresponding electronic device as if it were a single device as a whole, Optimal processing is applied to the signal. That is, in each device, the effect and function of the signal processing of each device changes corresponding to the connected device. The change of the effect and function of this signal processing realizes the optimum processing for the input signal in the entire system composed of each device. Therefore, in this case, the TV signal processing unit 106 and the corresponding electronic device as a whole share the optimal processing for the input signal. In the ID table stored in the controller 112 of the TV signal processing unit 106, in order to perform such optimal processing, the TV signal processing unit 106 should share (cooperative sharing) in cooperation with the corresponding electronic device. Processing information related to the processing is associated with the function ID of the corresponding electronic device.

  When the controller 112 recognizes the sharing of processing for the input signal, the controller 112 sets a signal path as a path representing the processing order of the input signal in the signal processing circuit 113 and the connected device.

  Thereafter, the process proceeds to step S7, and the controller 112 controls the function of the signal processing circuit 113 so that the signal processing circuit 113 can perform the shared processing (the processing represented by the processing information recognized in step S6). A control signal is generated and supplied to the signal processing circuit 113. The signal processing circuit 113 changes its function according to the control signal from the controller 112, and proceeds to step S8.

  In step S8, the signal processing circuit 113 performs processing corresponding to the changed function on the input signal supplied according to the signal path, and outputs the processing result according to the signal path. Then, when the processing on the input signal is completed, the process proceeds to step S9, where the controller 112 transmits a control signal to the signal processing circuit 113, thereby restoring the function based on the function of the signal processing circuit 113 and ending the processing. .

  Note that when the connected device is, for example, the electronic device 11 that is the corresponding electronic device illustrated in FIG. 17, the electronic device 11 performs the same processing as the processing according to the flowchart of FIG. 18. In this case, the electronic device 11 requests the function ID from the TV signal processing unit 106. This request is received by the controller 112 of the TV signal processing unit 106, and the controller 112 transmits the function ID stored therein to the electronic device 11. The controller 122 of the electronic device 11 receives the function ID from the TV signal processing unit 106 and refers to the ID table stored by itself based on the function ID, so that the electronic device 11 has the TV signal processing unit. Processing information related to processing to be shared (coordinated sharing) is recognized in cooperation with 106. In the electronic device 11, the controller 122 performs control so that the function of the signal processing circuit 123 is changed according to the recognized processing information.

  As described above, the TV signal processing circuit 113 and the electronic device 11 change their functions depending on whether other devices are connected or not connected, and perform processing on input signals with other devices. Since the sharing is performed in a coordinated manner, it is possible to obtain a higher quality processing result than when the TV signal processing circuit 113 (or another device) alone or the electronic device 11 alone.

  That is, when the TV signal processing unit 106 and the electronic device 11 are not electrically connected, the TV signal processing unit 106 and the electronic device 11 perform processing independently as shown in FIG. Here, it is assumed that the electronic device 11 is a DVD player, for example.

  In the embodiment of FIG. 19, the TV signal processing unit 106 is connected to the signal processing circuit 113 from the tuner 105 (FIG. 15) via the selector 104 and the I / F 111, for example, as shown in FIG. The supplied composite image SD image signal is subjected to composite / component conversion processing and spatial resolution improvement processing in a lump, and the resulting HD image signal of the component signal is sent via the I / F 111 and the selector 104. , Supplied to CRT2.

  Further, as shown in FIG. 19B, the electronic device 11 which is a DVD player reproduces a signal recorded on the DVD in a specific block 124 and supplies the signal to the signal processing circuit 123. The signal processing circuit 123 performs, for example, MPEG decoding processing and spatial resolution improvement processing on the playback signal from the DVD in a lump, and outputs the HD image signal of the component signal obtained as a result via the I / F 121. To do.

  On the other hand, when the TV signal processing unit 106 and the electronic device 11 are electrically connected, as shown in FIG. 20, the TV signal processing unit 106 and the electronic device 11 cooperatively share the processing for the input signal. . The TV signal processing unit 106 and the electronic device 11 perform the processes assigned to them by changing their functions.

  That is, in the embodiment of FIG. 20, the function of the signal processing circuit 113 in the TV signal processing unit 106 is changed from a function of performing the composite / component conversion process and the spatial resolution improving process in a lump to a function of performing only the spatial resolution improving process. It has changed. On the other hand, the function of the signal processing circuit 123 in the electronic device 11 has changed from a function of collectively performing the MPEG decoding process and the spatial resolution improving process to a function of collectively performing the MPEG decoding process and the distortion removal process. In the embodiment of FIG. 20, the signal path includes the specific block 124 in the electronic device 11, the signal processing circuit 123, the I / F 121, the selector 104, the I / F 111 in the TV signal processing unit 106, the signal processing circuit 113, I / F111 and selector 104 are set in this order.

  As described above, when the functions of the signal processing circuits 113 and 123 are changed and a signal path is set, the TV signal processing unit 106 and the electronic device 11 that are electrically connected to each other are shown in the flowchart of FIG. Processing as shown is performed.

  That is, the signal recorded on the DVD is reproduced and supplied to the signal processing circuit 123 in the specific block 124 of the electronic device 11 which is a DVD player. In step S11, the signal processing circuit 123 performs MPEG decoding processing and distortion removal processing on the reproduction signal from the DVD in a lump, and obtains the SD image signal (component from which distortion has been removed) of the component signal obtained as a result. , And output via the I / F 121.

  Here, in the distortion removal processing, distortion such as block distortion caused by MPEG encoding is removed.

  As described above, the SD image signal of the component signal output from the I / F 121 of the electronic device 11 is received by the selector 104 and supplied to the TV signal processing unit 106.

  In the TV signal processing unit 106, the signal processing circuit 113 receives the SD image signal of the component signal from the selector 104 via the I / F 111, and performs spatial resolution improvement processing on the SD image signal in step S12. Do. The HD image signal of the component signal obtained by performing the spatial resolution improvement processing in the signal processing circuit 113 is supplied to the selector 104 via the I / F 111.

  The selector 104 supplies the HD image signal to, for example, the CRT 2 (FIG. 15), whereby the CRT 2 MPEG-decodes the signal recorded on the DVD and performs distortion removal to improve its spatial resolution. The HD image of the component signal is displayed.

  Next, as described above, the function of the signal processing circuit 113 of the TV signal processing unit 106 is changed from the function of performing the composite / component conversion process and the spatial resolution improving process at once to the function of performing only the spatial resolution improving process. . Also, the function of the signal processing circuit 123 in the electronic device 11 changes from the function of collectively performing the MPEG decoding process and the spatial resolution improving process to the function of collectively performing the MPEG decoding process and the distortion removal process as described above.

  The signal processing circuit whose function changes in this way can be realized by, for example, the class classification adaptive processing previously proposed by the applicant of the present application.

  The class classification adaptation process includes a class classification process and an adaptation process. By the class classification process, signals (data) are classified based on their properties, and the adaptation process is performed for each class.

  Here, the adaptive processing will be described by taking as an example a case of performing spatial resolution improvement processing for converting an SD image into an HD image.

  In this case, in the adaptive processing, prediction of pixels of the HD image in which the spatial resolution of the SD image is improved by linear combination of the pixels constituting the SD image (hereinafter referred to as SD pixels as appropriate) and a predetermined tap coefficient. By obtaining the value, an image in which the resolution of the SD image is improved can be obtained.

Specifically, for example, a certain HD image is used as teacher data, and an SD image with degraded resolution of the HD image is used as student data, and pixels constituting the HD image (hereinafter, referred to as HD pixels as appropriate) .., And a set of pixel values x ₁ , x ₂ ,... Of several SD pixels (pixels constituting an SD image) and predetermined tap coefficients w ₁ , w Consider a linear primary combination model defined by the linear combination of ₂ ... In this case, the predicted value E [y] can be expressed by the following equation.

E [y] = w ₁ x ₁ + w ₂ x ₂ +...
... (1)

で定義すると、次のような観測方程式が成立する。 In order to generalize equation (1), a matrix W composed of a set of tap coefficients w _j , a matrix X composed of a set of student data x _ij , and a matrix Y ′ composed of a set of predicted values E [y _j ]

Then, the following observation equation holds.

XW = Y '
... (2)

Here, the component x _ij of the matrix X means the j-th student data in the i-th set of student data (the set of student data used for prediction of the _i-th teacher data y _i ). A component w _j of W represents a tap coefficient by which a product with the jth student data in the set of student data is calculated. Y _i represents the i-th teacher data, and therefore E [y _i ] represents the predicted value of the i-th teacher data. Note that y on the left side of the equation (1) is obtained by omitting the suffix i of the component y _i of the matrix Y, and x ₁ , x ₂ ,. The suffix i of the component x _ij is omitted.

で定義すると、式（２）から、次のような残差方程式が成立する。 Then, it is considered to apply the least square method to this observation equation to obtain a predicted value E [y] close to the pixel value y of the HD pixel. In this case, a matrix Y composed of a set of true pixel values y of HD pixels serving as teacher data and a matrix E composed of a set of residuals e of predicted values E [y] with respect to the pixel values y of HD pixels,

From the equation (2), the following residual equation is established.

XW = Y + E
... (3)

を最小にすることで求めることができる。 In this case, the tap coefficient w _j for obtaining the predicted value E [y] close to the pixel value y of the HD pixel is a square error.

Can be obtained by minimizing.

Therefore, when a differentiated by the tap coefficient w _j squared error of the above is zero, i.e., the tap coefficient w _j satisfying the following equation, for obtaining the predicted value close to the pixel value y of the HD pixel E [y] That is the optimum value.

・・・（４）

... (4)

Therefore, first, the following equation is established by differentiating the equation (3) by the tap coefficient w _j .

・・・（５）

... (5)

  From equations (4) and (5), equation (6) is obtained.

・・・（６）

... (6)

Further, considering the relationship among the student data x _ij , the tap coefficient w _j , the teacher data y _i , and the residual e _{i in} the residual equation of Equation (3), the following normal equation is obtained from Equation (6): Obtainable.

・・・（７）

... (7)

で定義するとともに、ベクトルＷを、数１で示したように定義すると、式
ＡＷ＝ｖ
・・・（８）
で表すことができる。 In addition, the normal equation shown in Expression (7) has a matrix (covariance matrix) A and a vector v,

And when the vector W is defined as shown in Equation 1, the equation AW = v
... (8)
Can be expressed as

Each normal equation in equation (7) can be set to the same number as the number J of tap coefficients w _{j to} be obtained by preparing a certain number of sets of student data x _ij and teacher data y _i. Therefore, by solving the equation (8) with respect to the vector W (however, to solve the equation (8), the matrix A in the equation (8) needs to be regular), the optimal tap coefficient w _j is _calculated . Can be sought. In solving the equation (8), for example, a sweeping method (Gauss-Jordan elimination method) or the like can be used.

As described above, using the student data and the teacher data, learning is performed to obtain the optimum tap coefficient w _j for predicting the teacher data from the student data and the tap coefficient, and the tap coefficient w _j is further calculated. The adaptive processing is to obtain a predicted value E [y] close to the teacher data y using the equation (1).

  The adaptive process is not included in the SD image, but is different from, for example, a simple interpolation process in that the component included in the HD image is reproduced. In other words, the adaptive process looks the same as the interpolation process using a so-called interpolation filter as long as only Expression (1) is seen, but the tap coefficient w corresponding to the tap coefficient of the interpolation filter is the teacher data and the student data. Therefore, the components included in the HD image can be reproduced. From this, it can be said that the adaptive process is a process having an image creation (resolution creation) effect.

  Further, here, the adaptive processing has been described by taking the case of improving the spatial resolution as an example. However, according to the adaptive processing, various tap coefficients obtained by performing learning by changing teacher data and student data are used. Thus, for example, it is possible to perform improvement of S / N (Signal to Noise Ratio), improvement of blur, and other various processes.

  That is, for example, in order to improve S / N and blur by adaptive processing, image data having a high S / N is used as teacher data, and an image in which the S / N of the teacher data is reduced, The tap coefficient may be obtained using the blurred image as the student data.

  Further, for example, in order to perform composite / component conversion processing and spatial resolution improvement processing collectively by adaptive processing, the HD image of the component signal is used as teacher data, the spatial resolution of the teacher data is reduced, and the composite signal is further reduced. The tap coefficient may be obtained using the image converted into the student data.

  Also, for example, in order to apply spatial resolution improvement processing to an image of a component signal by adaptive processing, an HD image of the component signal is used as teacher data, and an SD image in which the spatial resolution of the teacher data is reduced is used as a student. What is necessary is just to obtain | require a tap coefficient as data.

  In addition, for example, in order to perform MPEG decoding processing and spatial resolution improvement processing collectively on an MPEG encoded image by adaptive processing, a component signal HD image decoded by MPEG encoding is used as teacher data. At the same time, the tap resolution may be obtained by reducing the spatial resolution of the teacher data and using the encoded data encoded by MPEG as student data. Alternatively, for example, the tap coefficient may be obtained by using the component signal image as the teacher data and the encoded data obtained by MPEG-coding the teacher data as the student data.

  Next, FIG. 22 shows a configuration example of the signal processing unit 113 of the TV signal processing unit 106 realized by the class classification adaptive processing circuit that performs the class classification adaptive processing as described above. The signal processing unit 123 of the electronic device 11 (FIG. 17) is configured similarly.

  Input data (input signal) to be processed in the signal processing circuit 113 is supplied to the buffer 131, and the buffer 131 temporarily stores the input data supplied thereto.

  The prediction tap extraction circuit 132 sequentially sets output data to be obtained in a product-sum operation circuit 136 described later as attention data, and further extracts input data used to predict the attention data from the buffer 131. Let it be a prediction tap.

  That is, for example, when the input data is SD image data and the output data is HD image data in which the spatial resolution of the SD image is improved, the prediction tap extraction circuit 132, for example, selects HD as target data. Some SD pixels of the SD image located spatially or temporally close to the position corresponding to the pixel are extracted as prediction taps.

  For example, when the input data is encoded data obtained by MPEG-encoding an image and the output data is image data obtained by MPEG-decoding the encoded data, the prediction tap extraction circuit 132 performs, for example, attention DCT coefficients that make up a DCT block that includes pixels as data (a block that is a unit of DCT (Discrete Cosine Transform) processing in MPEG encoding), and a DCT that is spatially or temporally close to the DCT block When the coefficient, etc., and the pixel as the data of interest are MPEG-coded using an image of another frame (or field) as a predicted image (for example, a P picture or B picture) The DCT coefficients of the pixels constituting the predicted image are extracted as prediction taps. In addition, a pixel of an image that is already output as output data and becomes a prediction image can be used as a prediction tap.

  When the prediction tap extraction circuit 132 obtains a prediction tap for the attention data, the prediction tap extraction circuit 132 supplies the prediction tap for the attention data to the product-sum operation circuit 136.

  Here, the control signal is supplied from the function control unit 137 to the prediction tap extraction circuit 132, and the prediction tap extraction circuit 132 configures the prediction tap according to the control signal from the function control unit 137. The input data (and output data) to be performed, that is, the structure of the prediction tap is determined.

  The class tap extraction circuit 133 extracts the input data used for class classification for classifying the data of interest into any of several classes from the buffer 131 and sets it as a class tap.

  Here, the control signal is also supplied to the class tap extraction circuit 133 from the function control unit 137, and the class tap extraction circuit 133 is also supplied from the function control unit 137 in the same manner as the prediction tap extraction circuit 132. In accordance with the control signal, the input data constituting the class tap, that is, the structure of the class tap is determined.

  Here, in order to simplify the description, for example, the prediction tap obtained by the prediction tap extraction circuit 132 and the class tap obtained by the class tap extraction circuit 133 have the same tap structure. However, of course, the prediction tap and the class tap can have independent tap structures.

  The class tap for the data of interest obtained in the class tap extraction circuit 133 is supplied to the class classification circuit 134. The class classification circuit 134 classifies the data of interest based on the class tap from the class tap extraction circuit 133, and outputs a class code corresponding to the class obtained as a result.

  Here, as a method of classifying, for example, ADRC (Adaptive Dynamic Range Coding) or the like can be employed.

  In the method using ADRC, input data constituting a class tap is subjected to ADRC processing, and a class of attention data is determined according to an ADRC code obtained as a result.

  In the K-bit ADRC, for example, the maximum value MAX and the minimum value MIN of the input data constituting the class tap are detected, and DR = MAX-MIN is set as the local dynamic range of the set, and this dynamic range DR Based on this, the input data constituting the class tap is requantized to K bits. That is, the minimum value MIN is subtracted from each input data constituting the class tap, and the subtracted value is divided (quantized) by DR / 2K. Then, a bit string obtained by arranging the K-bit input data constituting the class tap in a predetermined order, which is obtained as described above, is output as an ADRC code. Therefore, for example, when a class tap is subjected to 1-bit ADRC processing, each input data constituting the class tap is an average value of the maximum value MAX and the minimum value MIN after the minimum value MIN is subtracted. By division, each input data is made 1 bit (binarized). A bit string obtained by arranging the 1-bit input data in a predetermined order is output as an ADRC code.

The class classification circuit 134 can output the level distribution pattern of the input data constituting the class tap as it is, for example, as a class code. In this case, the class tap has N pieces of input data. And K bits are assigned to each input data, the number of class codes output by the class classification circuit 134 is (2 ^N ) ^K, and the number of bits of input data is exponential. The number is proportionally large.

  Therefore, the class classification circuit 134 preferably performs class classification after compressing the information amount of the class tap by the above-mentioned ADRC processing or vector quantization.

  The class code output from the class classification circuit 134 is given to the coefficient storage unit 135 as an address.

  The coefficient storage unit 135 stores tap coefficients obtained by performing the learning process, and uses the tap coefficient stored at the address corresponding to the class code output from the class classification circuit 134 as the product-sum operation circuit 136. Output to.

  The coefficient storage unit 135 stores a plurality of sets (plural types) of tap coefficients obtained by performing learning using a plurality of sets of teacher data and student data, as will be described later. In the coefficient storage unit 135, which set of tap coefficients among a plurality of sets of tap coefficients is determined according to a control signal from the function control unit 137. That is, the coefficient storage unit 135 is supplied with a control signal output from the function control unit 137, and the coefficient storage unit 135 determines a set of tap coefficients to be used according to the control signal, and From the set of tap coefficients, the one corresponding to the class code supplied from the class classification circuit 134 is output to the product-sum operation circuit 136.

  The product-sum operation circuit 136 acquires the prediction tap output from the prediction tap extraction circuit 132 and the tap coefficient output from the coefficient storage unit 135, and uses the prediction tap and the tap coefficient to obtain the equation (1). The linear prediction calculation (product-sum calculation) is performed, and the calculation result is output as output data.

  The function control unit 137 is supplied with a control signal from the controller 112 (FIG. 16), and the function control unit 137 follows the control signal according to the prediction tap extraction circuit 132, the class tap extraction circuit 133, And the coefficient storage unit 135 is controlled.

  Next, FIG. 23 illustrates a configuration example of an embodiment of a learning device that performs learning processing of tap coefficients to be stored in the coefficient storage unit 135 of FIG.

  Learning data used for learning is supplied to the teacher data generation circuit 141. Here, high-quality data such as HD image data can be used as the learning data.

  The teacher data generation circuit 141 generates teacher data to be a learning teacher from the learning data.

  That is, for example, when the learning data is HD image data, the tap coefficient to be obtained by learning is for converting an SD image into an HD image, or MPEG encoded data is converted into an HD image. When it is for conversion, the teacher data generation circuit 141 outputs the HD image data as learning data as it is as teacher data.

  For example, when the learning data is HD image data, the tap coefficient to be obtained by learning is for converting an SD image with a low S / N into an SD image with a high S / N. When the MPEG encoded data is to be converted into an SD image, the teacher data generation circuit 141 thins the number of pixels from the HD image data as the learning data to obtain the SD image. Data is generated and output as teacher data.

  The teacher data output from the teacher data generation circuit 141 is supplied to the teacher data memory 142. The teacher data memory 142 stores the teacher data from the teacher data generation circuit 141.

  The student data generation circuit 143 generates student data to be learning students from the teacher data stored in the teacher data memory 142.

  That is, for example, when the tap coefficient to be obtained by learning is for converting an SD image into an HD image, the teacher data memory 142 stores the HD image as the teacher data as described above. In this case, the student data generation circuit 143 generates SD image data by thinning out the number of pixels of the teacher data, and outputs this as student data.

  For example, when the tap coefficient to be obtained by learning is for converting MPEG encoded data into an HD image, the teacher data memory 142 stores HD as teacher data as described above. In this case, the student data generation circuit 143 generates encoded data by MPEG encoding the teacher data, and outputs this as student data.

  Further, for example, when the tap coefficient to be obtained by learning is for converting an SD image having a low S / N into an SD image having a high S / N, the teacher data memory 142 stores the above-described tap coefficient. Thus, the SD image as teacher data is stored. In this case, the student data generation circuit 143 generates SD image data having a low S / N by adding noise to the teacher data. Output as student data.

  For example, when the tap coefficient to be obtained by learning is for converting MPEG encoded data into an SD image, the teacher data memory 142 stores SD as teacher data as described above. In this case, the student data generation circuit 143 generates encoded data by MPEG encoding the teacher data, and outputs this as student data.

  The student data output from the student data generation circuit 143 is supplied to the student data memory 144. The student data memory 144 stores student data supplied from the student data generation circuit 143.

  The prediction tap extraction circuit 145 sequentially extracts the teacher data stored in the teacher data memory 142 as attention data, and further extracts student data used for predicting the attention data from the student data memory 144. FIG. The prediction tap having the same tap structure as that of the prediction tap extraction circuit 132 is configured. The prediction tap obtained by the prediction tap extraction circuit 145 is supplied to the normal equation addition circuit 148.

  The class tap extraction circuit 146 extracts the student data used for classifying the target data from the student data memory 144, and configures the class tap having the same tap structure as the class tap extraction circuit 133 of FIG. To the class classification circuit 147. Similar to the class classification circuit 134 of FIG. 22, the class classification circuit 147 performs class classification using the class tap from the class tap extraction circuit 146, and the class code representing the class of the data of interest is sent to the normal equation addition circuit 148. Supply.

  The normal equation addition circuit 148 reads the teacher data as the attention data from the teacher data memory 142, and targets the student data constituting the prediction tap from the prediction tap extraction circuit 145 and the teacher data as the attention data. Addition is performed for each class represented by the class code supplied from the class classification circuit 147.

That is, the normal equation addition circuit 148 uses each prediction tap (student data) for each class corresponding to the class code supplied from the class classification circuit 147, and is each component in the matrix A of Expression (8). An operation corresponding to multiplication (x _in x _im ) between student data and summation (Σ) is performed.

Further, the normal equation addition circuit 148 uses the prediction tap (student data) and the target pixel (teacher data) for each class corresponding to the class code supplied from the class classification circuit 147, and uses the vector of equation (8). Calculation corresponding to multiplication (x _in y _i ) of student data and teacher data and summation (Σ), which are components in v.

  The normal equation adding circuit 148 performs the above addition using all the teacher data stored in the teacher data memory 142 as the data of interest, and thereby, for each class, the normal equation shown in the equation (8) is established.

  The tap coefficient determination circuit 149 obtains a tap coefficient for each class by solving the normal equation generated for each class in the normal equation addition circuit 148, and supplies the tap coefficient to the address corresponding to each class in the coefficient table storage unit 150. To do.

  Depending on the data prepared as learning data, there may occur a class in which the number of normal equations necessary for obtaining tap coefficients cannot be obtained in the normal equation adding circuit 148. For such a class, for example, a default tap coefficient is output.

  The coefficient table storage unit 150 stores the tap coefficient for each class supplied from the tap coefficient determination circuit 149.

  The control circuit 151 controls the teacher data generation circuit 141, the student data generation circuit 142, the prediction tap extraction circuit 145, and the class tap extraction circuit 146.

  That is, in the learning apparatus of FIG. 23, as information indicating what kind of processing tap coefficient is to be learned, processing information indicating the content of processing performed using the tap coefficient is displayed on an operation unit (not shown). By being operated, the control circuit 151 is set. The control circuit 151 controls the teacher data generation circuit 141, the student data generation circuit 142, the prediction tap extraction circuit 145, and the class tap extraction circuit 146 according to the processing information set by operating the operation unit.

  As a result, the teacher data generation circuit 141 generates teacher data from the learning data under the control of the control circuit 151. The student data generation circuit 143 also generates student data from the teacher data under the control of the control circuit 151. Further, in the prediction tap extraction circuit 145, the tap structure of the prediction tap is set under the control of the control circuit 151, and the prediction tap having such a tap structure is generated. Also in the class tap extraction circuit 146, the tap structure of the class tap is set under the control of the control circuit 151, and the class tap of such a tap structure is generated.

  Next, processing (learning processing) of the learning device in FIG. 23 will be described with reference to the flowchart in FIG.

  First, in step S21, the control circuit 151 controls the teacher data generation circuit 141, the student data generation circuit 142, the prediction tap extraction circuit 145, and the class tap extraction circuit 146 based on the set processing information. As a result, the teacher data generation circuit 141 sets a method for generating teacher data from learning data, and the student data generation circuit 143 sets a method for generating student data from teacher data. Further, the prediction tap extraction circuit 145 sets the tap structure of the prediction tap, and the class tap extraction circuit 146 sets the tap structure of the class tap.

  In step S22, the teacher data generation circuit 141 generates teacher data from the learning data supplied thereto in accordance with the generation method set in step S21, and supplies the teacher data to the teacher data memory 142 for storage.

  Thereafter, in step S23, the student data generation circuit 143 generates student data from the teacher data stored in the teacher data memory 142 in accordance with the generation method set in step S21, and supplies the student data to the student data memory 144 for storage. .

  Then, the process proceeds to step S <b> 24, and the prediction tap extraction circuit 145 sets, as the attention data, the teacher data stored in the teacher data memory 142 that has not yet been set as the attention data. Further, the prediction tap extraction circuit 145 reads out the student data from the student data memory 144 to generate a prediction tap having the tap structure set in step S <b> 21 for the data of interest and supplies the prediction tap to the normal equation addition circuit 148.

  In step S24, the class tap extraction circuit 146 reads out the student data from the student data memory 144, thereby generating a class tap having the tap structure set in step S21 for the data of interest, and supplies the class tap to the class classification circuit 147. Then, the process proceeds to step S25.

  In step S25, the class classification circuit 147 performs class classification using the class tap from the class tap extraction circuit 146, and obtains a class code for the data of interest. This class code is supplied from the class classification circuit 147 to the normal equation addition circuit 148.

  In step S26, the normal equation adding circuit 148 reads the teacher data as the attention data from the teacher data memory 142, and the student data constituting the prediction tap supplied from the prediction tap extraction circuit 145 and the attention data as the attention data. For teacher data, the matrix A and the vector v in Expression (8) are added as described above. This addition is performed for each class corresponding to the class code from the class classification circuit 147.

  In step S27, the prediction tap extraction circuit 145 determines whether all teacher data stored in the teacher data memory 142 have been added as attention data. If it is determined in step S27 that all of the teacher data has not yet been added as the attention data, the process returns to step S24, and the prediction tap extraction circuit 145 has not yet set the attention data among the teacher data. The same processing is repeated hereinafter with the new data as the attention data.

  If it is determined in step S27 that all teacher data has been added as the data of interest, the process proceeds to step S28, where the tap coefficient determination circuit 149 performs the addition in step S26 in the normal equation addition circuit 148. As a result, the normal equation generated for each class is solved, whereby the tap coefficient for each class is obtained, supplied to the address corresponding to each class in the coefficient memory 150, stored, and the process is terminated. .

  As described above, the coefficient memory 150 stores the tap coefficient for each class for performing the processing represented by the processing information set in the control circuit 151.

  The learning processing by the learning device as described above is performed by changing the processing information set in the control circuit 151, and a set of tap coefficients for each processing information is obtained.

  The coefficient storage unit 135 in the signal processing circuit 113 in FIG. 22 stores a plurality of sets of tap coefficients obtained for each of a plurality of pieces of processing information in this way.

  That is, FIG. 25 shows a configuration example of the coefficient storage unit 135 of FIG.

The selectors 161 and 162 select any one of the _N coefficient memories 163 _{1 to} 163 _N according to the control signal supplied from the function control unit 137 (FIG. 22). The selectors 161 and 162 select the same coefficient memory 163 _n .

Each of the coefficient memories 163 _{1 to} 163 _N stores a set of tap coefficients obtained by the learning apparatus in FIG. 23 for each processing information.

In the coefficient storage unit 135 configured as described above, the selectors 161 and 162 have one coefficient memory 163 out of the N coefficient memories 163 _{1 to} 163 _N according to the control signal supplied from the function control unit 137. Select _n .

Also, the selector 161, a class code from the classifying circuit 134 and is adapted to be supplied, the selector 161 supplies the class code, the coefficient memory 163 _n are selected. The coefficient memory 163 _n reads out and outputs the tap coefficient stored in the address corresponding to the class code from the selector 161 from the set of tap coefficients corresponding to the predetermined processing information stored in itself.

The tap coefficient coefficient memory 163 _n outputs are supplied to the selector 162 has selected the coefficient memory 163 _n, a selector 162, the tap coefficients supplied from the coefficient memory 163 _n, the product-sum operation circuit 136 (FIG. 22).

Note that the coefficient memories 163 _{1 to} 163 _N that store a set of tap coefficients for each piece of processing information need not be physically separate memories. That is, the coefficient memories 163 _{1 to} 163 _N can be realized by using one memory while switching banks.

  Here, in the present embodiment, the function of the signal processing circuit 113 in the TV signal processing unit 106 is changed from the function of performing the composite / component conversion process and the spatial resolution improving process at once to the function of performing only the spatial resolution improving process. Therefore, at least the following two sets of tap coefficients are stored in the coefficient storage unit 135 of the signal processing circuit 113.

That is, in one coefficient memory 163 _i in the coefficient storage unit 135 of the signal processing circuit 113, the HD image of the component signal is used as the teacher data, and the SD image with the spatial resolution of the teacher data is reduced as the component signal. A set of tap coefficients obtained by performing a learning process using student data converted from to a composite signal is stored. Further, in the other coefficient memory 163 _j in the coefficient storage unit 135 of the signal processing circuit 113, the HD image of the component signal is used as teacher data, and an SD image with the spatial resolution of the teacher data is reduced as a student. A set of tap coefficients obtained by performing learning processing as data is stored.

  In the present embodiment, the function of the signal processing circuit 123 in the electronic device 11 (FIG. 17) is to perform MPEG decoding processing and distortion removal processing collectively from the function of performing MPEG decoding processing and spatial resolution improvement processing collectively. In order to change the function, at least the following two sets of tap coefficients are stored in the coefficient storage unit 135 in the signal processing circuit 123 of the electronic device 11.

That is, in one coefficient memory 163 _i in the coefficient storage unit 135 of the signal processing circuit 123, an HD image of a component signal is MPEG-encoded, and an HD image obtained by MPEG-decoding the encoded data is used as teacher data. At the same time, a set of tap coefficients obtained by performing learning processing using encoded data obtained by MPEG-encoding an SD image in which the spatial resolution of the teacher data is reduced is stored. Further, in another coefficient memory 163 _j in the coefficient storage unit 135 of the signal processing circuit 123, the SD image of the component signal is used as teacher data, and encoded data obtained by MPEG-coding the teacher data is used as student data. A set of tap coefficients obtained by performing the learning process is stored.

  Note that other tap coefficients can be stored in the TV signal processing unit 106 and the coefficient storage unit 135 of the electronic device 11. In other words, the coefficient storage unit 135 includes, for example, a tap coefficient for enlarging / reducing (resizing) an image, a tap coefficient for improving the resolution in the time direction, a tap coefficient for improving the resolution in the gradation direction, and an improvement in blurring. It is possible to store a tap coefficient to be performed, a tap coefficient to be subjected to distortion and noise removal, and the like.

  Here, for example, class classification adaptation processing using a tap coefficient for improving spatial resolution or temporal resolution or resizing is described in Japanese Patent Laid-Open No. 7-79418. Further, for example, class classification adaptive processing using tap coefficients for performing MPEG decoding is described in Japanese Patent Laid-Open No. 2001-320711. Furthermore, for example, class classification adaptation processing using a tap coefficient that changes gradation is described in Japanese Patent Laid-Open No. 9-219833. Further, for example, class classification adaptation processing using tap coefficients for improving blur is described in Japanese Patent Laid-Open No. 11-27564. Further, for example, class classification adaptive processing using tap coefficients for removing distortion and noise is described in Japanese Patent Laid-Open No. 7-115569.

  As described above, sets of various types of tap coefficients are stored in the coefficient storage unit 135, and by switching which one of them is used, the signal processing circuit 113 of the TV signal processing unit 106 or the electronic device The functions of the eleven signal processing circuits 123 can be easily changed. Here, the tap structure of prediction taps and class taps changes according to the function of signal processing in order to improve the efficiency of signal processing, the efficiency of memory use, and the like. However, when the prediction tap or class tap is designed in advance to have a tap structure sufficient for each signal processing function, the tap structure of the prediction tap or class tap does not need to be changed. .

  Next, the processing of the signal processing circuit 113 in FIG. 22 will be described with reference to the flowchart in FIG.

  In step S31, the function control unit 137 receives a control signal for changing the function of the signal processing circuit 113 from the controller 112, and in accordance with the control signal, the prediction tap extraction circuit 132, the class tap extraction circuit 133, and the coefficient storage. The unit 135 is controlled.

  That is, the control signal supplied from the controller 112 to the function control unit 137 includes processing information associated with the function ID stored in the controller 112, and the function control unit 137 follows the processing information. Similarly to the control circuit 151 of FIG. 23, the prediction tap extraction circuit 132, the class tap extraction circuit 133, and the coefficient storage unit 135 are controlled.

  Accordingly, the prediction tap extraction circuit 132 is set to generate a prediction tap having the same tap structure as that in the prediction tap extraction circuit 145 of the learning device in FIG. 23, and the class tap extraction circuit 133 is also set in FIG. The class tap extraction circuit 146 of the learning device is set so as to generate a class tap having the same tap structure as the case.

Furthermore, the coefficient storage unit 135 is set to use a coefficient memory 163 _n (FIG. 25) that stores a set of tap coefficients corresponding to the processing information included in the control signal from the function control unit 137.

  Thereafter, when input data is supplied and stored in the buffer 131, the process proceeds to step 32, and the prediction tap extraction circuit 132 is still regarded as data of interest among output data to be obtained by the product-sum operation circuit 136. The data that has not been used is the data of interest, and the input data is read from the buffer 131 to generate (configure) the prediction data having the tap structure set in step S31 for the data of interest, and supply it to the product-sum operation circuit 136. .

  Further, in step S32, the class tap extraction circuit 133 reads the input data from the buffer 131, thereby generating a class tap having the tap structure set in step S31 for the data of interest, and supplies it to the class classification circuit 134. The process proceeds to step S33.

  In step S33, the class classification circuit 134 performs class classification using the class tap from the class tap extraction circuit 133, and obtains a class code for the data of interest. This class code is supplied to the coefficient storage unit 135.

In the coefficient storage unit 135 (FIG. 25), when the selectors 161 and 162 have selected the coefficient memory 163 _n set in step S31 and the class code is supplied from the class classification circuit 134, the coefficient is determined in step S34. The tap coefficient is read from the address corresponding to the class code from the class classification circuit 134 in the memory 163 _n and supplied to the product-sum operation circuit 136.

  The product-sum operation circuit 136 acquires the tap coefficient supplied from the coefficient storage unit 135, and uses the tap coefficient in step S35 and the prediction tap supplied from the prediction tap extraction circuit 132 in step S32. The sum-of-products operation shown in (1) is performed to obtain the predicted value of the data of interest and output as output data.

  Here, the output data output from the product-sum operation circuit 136 in this way is obtained using a set of tap taps and prediction taps and class taps corresponding to the processing information. The input data is processed by the processing information.

  Thereafter, the process proceeds to step S36, where the prediction tap extraction circuit 132 determines whether there is still output data to be the data of interest. If it is determined in step S36 that there is output data that should be the data of interest, the process returns to step S32, and the same processing is repeated hereinafter with the output data that has not yet been used as the data of interest as new data of interest.

  On the other hand, if it is determined in step S36 that there is no output data that should be the data of interest, the process ends.

  As described above, the signal processing circuit 113 of the TV signal processing unit 106 has the tap structure of the prediction tap generated by the prediction tap extraction circuit 132 and the tap of the class tap configured by the class tap extraction circuit 133 according to the processing information. By setting the structure and the type of tap coefficient set used for the product-sum operation of the product-sum operation circuit 136, its function is changed. Further, the function of the signal processing circuit 123 of the electronic device 11 (FIG. 17) is changed in the same manner as the signal processing circuit 123. The signal processing circuits 113 and 123 cooperatively share the processing for the input signal by changing the function in this way. Therefore, in this case, it is possible to obtain output data with higher quality than when processing is performed by only one of the signal processing circuits 113 and 123.

  That is, the signal processing circuit 113 alone of the TV signal processing unit 106 uses the HD image of the component signal as teacher data, and converts the SD image with the spatial resolution of the teacher data reduced from the component signal to the composite signal. Tap coefficients obtained by performing learning processing as student data (hereinafter referred to as composite / component conversion and SD / HD conversion tap coefficients as appropriate) are used. Then, using this tap coefficient, the baseband SD image signal output from the tuner 105 (FIG. 15), which is a composite signal, is processed, so that the SD image signal of the composite signal is processed. Are converted into HD image signals of component signals.

  In addition, the signal processing circuit 123 alone of the electronic device 11 MPEG-encodes the HD image of the component signal, and the HD image obtained by MPEG decoding the encoded data is used as teacher data, and the spatial resolution of the teacher data is set. Tap coefficients (hereinafter referred to as MPEG decoding and SD / HD conversion tap coefficients as appropriate) obtained by performing learning processing using encoded data obtained by MPEG-encoding a reduced SD image as student data are used. Then, using this tap coefficient, the encoded data obtained by MPEG-encoding the SD image signal of the component signal output from the specific block 124 (FIG. 17) is processed, so that the encoded data becomes the component signal. It is converted into an HD image signal.

  On the other hand, when the TV signal processing unit 106 and the electronic device 11 are electrically connected, the signal processing circuit 113 of the TV signal processing unit 106 and the signal processing circuit 123 of the electronic device 11 have their respective functions. Change and coordinate the processing for input signals.

  That is, first, in the signal processing circuit 123 of the electronic device 11, a tap obtained by performing learning processing using the SD data of the component signal as teacher data and using encoded data obtained by MPEG-encoding the teacher data as student data. By processing the encoded data obtained by encoding the SD image signal of the component signal, which is output from the specific block 124 (FIG. 17), using a coefficient (hereinafter, appropriately referred to as an MPEG decoding tap coefficient), The encoded data is converted into an SD image signal as a component signal.

  Then, in the signal processing circuit 113 of the TV signal processing unit 106, the HD image of the component signal is used as teacher data, and the SD image with the spatial resolution of the teacher data reduced is used as student data to perform learning processing. The SD image signal of the component signal obtained by the signal processing circuit 123 of the electronic device 11 is processed using a tap coefficient (hereinafter, appropriately referred to as an SD / HD conversion tap coefficient), so that the SD image signal is converted into the SD image signal. Are converted into HD image signals of component signals.

  Therefore, even when only one of the signal processing circuits 113 and 123 performs processing alone, or when the signal processing circuits 113 and 123 perform processing in a coordinated manner, the final processing is performed. What is obtained is the HD image signal of the component signal.

  However, according to the composite / component conversion and SD / HD conversion tap coefficient used in the case of the signal processing circuit 113 alone of the TV signal processing unit 106, the composite SD image is converted into the HD image of the component signal in one process. However, the conversion accuracy is different between converting a composite SD image into a component signal SD image and converting a component signal SD image into a component signal HD image. It may be deteriorated compared with the case where it is carried out.

  That is, converting a composite SD image into a component signal SD image uses the component signal SD image as teacher data and performs learning processing using the SD image obtained by converting the teacher data as a composite signal as student data. This can be performed using a tap coefficient (hereinafter referred to as a composite / component conversion tap coefficient as appropriate).

  Also, converting the SD image of the component signal into the HD image of the component signal means that the above-described SD / HD conversion tap coefficients (the HD image of the component signal is used as teacher data and the spatial resolution of the teacher data is reduced). (Tap coefficient obtained by performing learning processing on the SD image as student data).

  The tap coefficient for composite / component conversion is specialized for the process of converting an SD image of a composite signal into an SD image of a component signal. Therefore, if only focusing on converting a composite signal into a component signal, The SD image of a composite signal can be converted to an SD image of a component signal with higher accuracy than the tap coefficient for composite / component conversion and SD / HD conversion that can be converted into an HD image of a component signal at once. Can be converted.

  Also, since the SD / HD conversion tap coefficient is specialized for the process of converting an SD image into an HD image, if attention is paid only to improving such spatial resolution, composite / component conversion is still necessary. In addition, it is possible to obtain an HD image in which the spatial resolution of the SD image is improved more accurately than the tap coefficient for SD / HD conversion.

  Similarly, the tap coefficient for MPEG decoding and SD / HD conversion can MPEG-decode encoded data obtained by MPEG encoding the SD image signal of the component signal, and convert it into an HD image by a single process. When this MPEG decoding and SD / HD conversion tap coefficient is used, the decoding accuracy is deteriorated as compared with the case of using the MPEG decoding tap coefficient, and the conversion is performed more than when the SD / HD conversion tap coefficient is used. Accuracy can be degraded.

  From the above, when the signal processing circuits 113 and 123 perform the processing in a coordinated manner, the encoded data is converted into an SD image using the MPEG decoding tap coefficient. Since the HD conversion tap coefficient is used to convert to an HD image, the composite / component conversion and the SD / HD conversion tap coefficient may be used solely by the signal processing circuit 113 of the TV signal processing unit 106, or the electronic device 11 Compared to the case where the MPEG decoding and SD / HD conversion tap coefficients are used by the signal processing circuit 123 alone, an HD image with good image quality can be obtained.

  According to the MPEG decoding tap coefficient, not only the encoded data is MPEG-decoded, but also distortion such as block distortion caused by MPEG encoding is removed.

  In other words, as described above, the MPEG decoding tap coefficient is obtained by performing learning processing using the SD image of the component signal as teacher data and using encoded data obtained by MPEG encoding the teacher data as student data. For this reason, the encoded data is converted into an image in which the square error with respect to the original image (the total sum) is minimized. Therefore, according to the MPEG decoding tap coefficient, the encoded data is converted into an image close to the original image without distortion, so that distortion such as block distortion due to MPEG encoding is also removed in addition to MPEG decoding. become.

  When the tap coefficient is obtained by performing the learning process using the encoded data obtained by MPEG-encoding the teacher data as the student data, and the SD data of the component signal MPEG-encoded and MPEG-decoded. In other words, the tap coefficient is used to convert the encoded data into a decoded image obtained when normal MPEG decoding is performed, that is, an image close to a decoded image having block distortion or the like caused by MPEG encoding. Therefore, in this case, the above-described distortion removal is not performed.

  As described above, the corresponding electronic device such as the electronic device 11 can be stored without the bay adapter box 14 in the bay 4 of the bay structure type television receiver (FIGS. 1 and 2). By being electrically connected to the TV signal processing unit 106, it is possible to perform processing in a shared manner and obtain an image with good image quality. On the other hand, incompatible electronic devices such as the electronic device 13 require the bay adapter box 14 to be housed in the bay 4 of the bay structure type television receiver, and are electrically connected to the TV signal processing unit 106. Even if connected, since the process is performed independently, it is possible to obtain an image having a good image quality as in the case where the process is performed in a shared manner regardless of whether the TV signal processing unit 106 is electrically connected. I can't.

  Therefore, the compatible electronic device has an added value that it can be easily stored in the bay 4 and can obtain high-quality data as compared with the non-compatible electronic device.

  Next, in the above case, the signal processing circuit 113 of the TV signal processing unit 106 and the signal processing circuit 123 of the electronic device 11 are configured by a class classification adaptive processing circuit (FIG. 22) that performs class classification adaptive processing. However, the signal processing circuits 113 and 123 can be configured by modules (blocks) that perform processing corresponding to each of the various functions.

  FIG. 27 shows another configuration example of the TV signal processing unit 106 and the electronic device 11. In the figure, portions corresponding to those in FIG. 16 or FIG. 17 are denoted by the same reference numerals, and description thereof will be appropriately omitted below.

  27A shows another configuration example of the TV signal processing unit 106. The signal processing unit 113 is not a class classification adaptive processing circuit, but a conversion unit 171, a spatial resolution improvement processing unit 172, a noise. Other than the configuration of the removal processing unit 173 and the selector 174, the configuration is the same as that in FIG.

  FIG. 27B shows another example of the configuration of the electronic device 11. The signal processing unit 123 is not a class classification adaptive processing circuit, but an MPEG decoder 175, a distortion removal processing unit 176, and a selector. Other than the configuration of 177, the configuration is the same as in FIG.

  When the TV signal processing unit 106 in FIG. 27A performs processing alone, the SD image signal of the baseband composite signal output from the tuner 105 (FIG. 15) is transmitted via the selector 104 and the I / F 111. And supplied to the signal processing circuit 113.

  In the signal processing circuit 113, the signal from the tuner 105 is processed by being exchanged as shown by a dotted line in FIG.

  That is, in the signal processing circuit 113, the selector 174 receives the SD image signal of the composite signal from the tuner 105. Then, the selector 174 selects the conversion unit 171 and supplies the selected conversion unit 171 with the SD image signal of the composite signal.

  The conversion unit 171 converts the SD image signal of the composite signal from the selector 174 into an SD image signal of the component signal and supplies it to the selector 174. The selector 174 selects the spatial resolution enhancement processing unit 172 and supplies the SD image signal of the component signal to the selected spatial resolution enhancement processing unit 172.

  The spatial resolution improvement processing unit 172 performs processing for improving the spatial resolution of the SD image signal of the component signal from the selector 174, and supplies the HD image signal of the component signal obtained as a result to the selector 174. The selector 174 selects the noise removal processing unit 173 and supplies an HD image signal of the component signal to the selected noise removal processing unit 173.

  The noise removal processing unit 173 performs noise removal processing on the HD image signal from the selector 174 and supplies the resulting HD image signal to the selector 174. Then, the selector 174 outputs the HD image signal from the noise removal processing unit 173 to the selector 104 (FIG. 15) via the I / F 111.

  The selector 104 supplies the HD image signal to, for example, the CRT 2 (FIG. 15), and the corresponding HD image is displayed on the CRT 2.

  Therefore, when the TV signal processing unit 106 performs processing alone, the signal processing circuit 113 of the TV signal processing unit 106 has a function of converting a composite signal into a component signal and a function of improving spatial resolution (an SD image is converted into an HD image). Conversion function) and noise removal function.

  On the other hand, when the electronic device 11 in FIG. 27B performs processing alone, encoded data obtained by MPEG encoding the SD image output from the specific block 124 is supplied to the signal processing circuit 123. .

  In the signal processing circuit 123, the encoded data is processed by being exchanged as shown by a dotted line in FIG.

  That is, in the signal processing circuit 123, the selector 177 receives the encoded data from the specific block 124. Then, the selector 177 selects the MPEG decoder 175 and supplies the encoded data to the selected MPEG decoder 175.

  The MPEG decoder 175 MPEG-decodes the encoded data from the selector 177 and supplies a decoded image signal (SD image signal) obtained as a result to the selector 177. The selector 177 selects the distortion removal processing unit 176 and supplies the decoded image signal to the selected distortion removal processing unit 176.

  The distortion removal processing unit 176 performs distortion removal processing for removing block distortion and the like from the decoded image signal from the selector 177, and supplies the decoded image signal obtained as a result to the selector 177. The selector 177 outputs the decoded image signal from the distortion removal processing unit 176 via the I / F 121.

  Therefore, when the electronic device 11 performs processing alone, the signal processing circuit 123 of the electronic device 11 has a function of MPEG-decoding encoded data obtained by MPEG-encoding an image, and a function of removing block distortion and the like.

  Next, when the electronic device 11 is accommodated in the bay 4 (FIGS. 1 and 2) and electrically connected to the TV signal processing unit 106, the signal processing circuit 113 of the TV signal processing unit 106 and the electronic As described above, the signal processing circuit 123 of the device 11 exchanges the function IDs so that at least one of the functions changes its function as described above.

  That is, the signal processing circuit 113 of the TV signal processing unit 106 has, for example, the above-described three functions: a function of converting a composite signal into a component signal, a function of improving spatial resolution, and a function of removing noise. , It changes to one having only the function of improving the spatial resolution.

  In addition, the signal processing circuit 123 of the electronic device 11 remains having the above-described two functions, that is, the above-described function of MPEG decoding encoded data and the function of removing block distortion and the like.

  Then, in the signal processing circuit 113 of the TV signal processing unit 106 and the signal processing circuit 123 of the electronic device 11, the encoded data is processed by being exchanged as indicated by a dotted line in FIG. 28.

  In other words, the signal processing circuit 123 of the electronic device 11 performs the same processing as in FIG. 27B, whereby the decoded image signal from which distortion has been removed is output from the I / F 121.

  The decoded image signal is supplied to the selector 104, and the selector 104 supplies the decoded image signal from the electronic device 11 (I / F 121 thereof) to the TV signal processing unit 106.

  In the TV signal processing unit 106, the decoded image signal from the selector 104 is received by the I / F 111 and supplied to the signal processing circuit 113.

  In the signal processing circuit 113, the selector 174 receives the decoded image signal, and further selects the spatial resolution enhancement processing unit 172. Then, the selector 174 supplies the received decoded image signal to the selected spatial resolution enhancement processing unit 172.

  The spatial resolution improvement processing unit 172 performs processing for improving the spatial resolution of the decoded image signal from the selector 174 and supplies the HD image signal obtained as a result to the selector 174. The selector 174 outputs the HD image signal from the spatial resolution enhancement processing unit 172 to the selector 104 via the I / F 111.

  The selector 104 supplies the HD image signal to, for example, the CRT 2 (FIG. 15), and the corresponding HD image is displayed on the CRT 2.

  Therefore, when the electronic device 11 performs processing alone, the encoded data is subjected to MPEG decoding, and a decoded image signal obtained as a result is obtained by removing distortion. When the unit 106 is electrically connected and processing is performed in a shared manner, an HD image with improved spatial resolution of the decoded image signal from which distortion has been removed can be obtained.

  As shown in the embodiment of FIGS. 27 and 28, when the signal processing circuits 113 and 123 are configured using modules (blocks) corresponding to the respective functions, the signal processing circuits 113 and 123 include The same number of modules as the number of functions to be provided is required. If the number of functions is increased, the number of modules also increases, and the circuit scale also increases.

  On the other hand, when the signal processing circuits 113 and 123 are configured by the class classification adaptive processing circuit as shown in FIG. 22, the increase in the number of functions basically increases the coefficient storage. Therefore, only the storage capacity of the unit 135 can be achieved, so that the increase in circuit scale can be reduced. Further, it can be seen from FIG. 22, FIG. 25, and FIG. 26 that by adopting the class classification adaptive processing as the signal processing, there is almost no change in the signal processing procedure and no change in the circuit configuration due to the change in function. That is, according to the class classification adaptive processing circuit of FIG. 22, the physical configuration of the product-sum operation circuit 136 that performs processing specialized for one processing procedure of performing product-sum operation of tap coefficients and prediction taps is changed. Therefore, signal processing of various functions can be realized.

  Next, the series of processes described above by the signal processing circuits 113 and 123 can be performed by hardware or software. When a series of processing is performed by software, a program constituting the software is installed in a computer such as a microcomputer.

  Therefore, FIG. 29 shows a configuration example of an embodiment of a computer in which a program for executing the series of processes described above is installed.

  The program can be recorded in advance in a hard disk 205 or ROM 203 as a recording medium built in the computer.

  Alternatively, the program is stored temporarily on a removable recording medium 211 such as a flexible disk, a CD-ROM (Compact Disc Read Only Memory), an MO (Magneto optical) disk, a DVD (Digital Versatile Disc), a magnetic disk, or a semiconductor memory. It can be stored permanently (recorded). Such a removable recording medium 211 can be provided as so-called package software.

  The program is installed on the computer from the removable recording medium 211 as described above, or transferred from the download site to the computer wirelessly via a digital satellite broadcasting artificial satellite, LAN (Local Area Network), The program can be transferred to a computer via a network such as the Internet. The computer can receive the program transferred in this way by the communication unit 208 and install it in the built-in hard disk 205.

  The computer includes a CPU (Central Processing Unit) 202. An input / output interface 210 is connected to the CPU 202 via the bus 201, and the CPU 202 operates the input unit 207 including a keyboard, a mouse, a microphone, and the like by the user via the input / output interface 210. When a command is input as a result of this, the program stored in a ROM (Read Only Memory) 203 is executed accordingly. Alternatively, the CPU 202 also receives a program stored in the hard disk 205, a program transferred from a satellite or a network, received by the communication unit 208 and installed in the hard disk 205, or a removable recording medium 211 attached to the drive 209. The program read and installed in the hard disk 205 is loaded into a RAM (Random Access Memory) 204 and executed. Thereby, the CPU 202 performs processing according to the above-described flowchart or processing performed by the configuration of the above-described block diagram. Then, the CPU 202 outputs the processing result from the output unit 206 configured with an LCD (Liquid Crystal Display), a speaker, or the like, for example, via the input / output interface 210, or from the communication unit 208 as necessary. Transmission, and further recording on the hard disk 205 is performed.

  Here, in the present specification, the processing steps for describing a program for causing the computer to perform various processes do not necessarily have to be processed in time series in the order described in the flowcharts, but in parallel or individually. This includes processing to be executed (for example, parallel processing or processing by an object).

  Further, the program may be processed by one computer or may be distributedly processed by a plurality of computers. Furthermore, the program may be transferred to a remote computer and executed.

  The electronic equipment stored in the bay 4 of the bay structure type television receiver (FIGS. 1 and 2) is not limited to the above-described DVD player, digital VTR, etc., for example, a printer or an HD (Hard Disk) ) Recorder or anything else is acceptable.

  In this embodiment, a bay structure type television receiver (FIGS. 1 and 2) is configured by incorporating a tuner 104, a TV signal processing unit 106, and the like in the TV rack 1 (FIG. 1) in advance. However, the tuner 104, the TV signal processing unit 106, and the like do not need to be incorporated in the TV rack 1 in advance. That is, the tuner 104, the TV signal processing unit 106, and the like can be used by being housed in the bay 4 of the TV rack 1 as one of the electronic devices.

  Further, in the present embodiment, a case has been described where two electronic devices, the TV signal processing unit 106 and the electronic device 11, perform cooperative processing sharing. However, cooperative processing sharing is performed by three or more electronic devices. It is also possible. In addition to the processing contents described above, time resolution creation, gradation creation, and the like can be adopted as the processing contents.

  Furthermore, in the present embodiment, when electronic device 11 is housed in bay 4 of the bay structure type television receiver and is electrically connected to TV signal processing unit 106, coordinated processing is performed. However, the shared processing of processing is performed among a plurality of electronic devices that are electrically connected by being housed in the bay 4, and a plurality of electronic devices that are electrically connected via cables, radio, or the like. It is also possible to do between.

  In this embodiment, the coefficient storage unit 135 (FIG. 22) stores a plurality of types of tap coefficients in advance, and the function of the signal processing circuit 113 is changed by switching the set of tap coefficients to be used. The tap coefficient for changing the function of the signal processing circuit 113 is not stored in the coefficient storage unit 135 in advance, but can be downloaded from the outside.

  That is, for example, as described with reference to FIG. 1, a mobile phone can be stored in the bay 4G of the bay structure type television receiver. In this way, the mobile phone is stored in the bay 4G. By using the communication function of the mobile phone, it is possible to access a server on the Internet or other network and download a necessary tap coefficient. In addition, for example, when the electronic device stores a necessary tap coefficient when the electronic device is electrically connected to the other electronic device, the tap coefficient may be downloaded from the electronic device. it can.

  In the same manner, information regarding the tap structure of prediction taps and class taps can be downloaded from the outside.

  Here, as described above, when the tap coefficient is downloaded from the outside, it is necessary to store the downloaded tap coefficient (hereinafter referred to as the download tap coefficient as appropriate) in the coefficient storage unit 135 (FIG. 22). Therefore, the coefficient storage unit 135 requires a storage area for storing download tap coefficients.

  Therefore, the coefficient storage unit 135 is provided with a minimum necessary tap coefficient (for the TV signal processing unit 106, for example, a composite / component for realizing a function that the TV signal processing unit 106 must have at least. In addition to the storage area for conversion tap coefficients, a storage area for storing download tap coefficients can be provided.

  In this case, when the download tap coefficient is not used, the storage area of the coefficient storage unit 135 is wasted. Therefore, the coefficient storage unit 135 is provided with only the minimum necessary storage area, the minimum necessary tap coefficient is stored in the storage area in advance, and the download tap coefficient is used when the download tap coefficient is used. The coefficient can be stored in the coefficient storage unit 135 in an overwritten form.

  However, in this case, when the download tap coefficient is no longer necessary (for example, when the electrical connection with another electronic device is disconnected), the tap coefficient stored in advance in the coefficient storage unit 135 is used. Need to be remembered again. For that purpose, when the downloaded tap coefficient is overwritten in the coefficient storage unit 135, it is necessary to store the tap coefficient stored in advance. For example, as shown by a dotted line in FIG. This is possible by providing a storage medium such as an HD (Hard Disk) 107 so as to be connected to the selector 104. In other words, the tap coefficients stored in advance in the coefficient storage unit 135 can be stored in the HD 107.

In addition, one coefficient memory 163 _n in the coefficient storage unit 135 of the embodiment in FIG. 25 basically stores one set of tap coefficients, but the number of tap coefficients has a large number of bits or the number of classes. When one set of tap coefficients cannot be stored in one coefficient memory 163 _n due to a large number of the coefficient, etc., one set of tap coefficients is stored in a plurality of coefficient memories 163 _{1 to} 163 _N. It is possible to memorize.

  Further, although cases have been described with the present embodiment where images are processed, the present invention can also be applied to cases where audio or the like is processed.

It is a perspective view which shows the structural example of one Embodiment of the bay structure type television receiver to which this invention is applied. It is a perspective view which shows the bay structure type television receiver of the state in which the electronic device was accommodated. It is a top view which shows the structural example of the connection panel 5 in a bay. It is a perspective view at the time of seeing electronic equipment 11 (12) from the back side. 3 is a perspective view showing a configuration example of a bay adapter box 14. FIG. It is a perspective view which shows the structural example of 15 A of in-adapter connection panels, and the adapter back panel 15B. It is a perspective view which shows the bay adapter box 14 which can attach or detach the back panel part 15. FIG. It is a perspective view which shows the bay adapter box 14 which can attach or detach the adapter back panel 15B. It is a perspective view which shows the structural example of the back panel part 15 to which a terminal can move. It is sectional drawing which shows the back panel part 15 to which a terminal can move. It is sectional drawing which shows the back panel part 15 to which a terminal can move. It is a perspective view which shows the other structural example of the back panel part 15 to which a terminal can move. It is a perspective view which shows the further another structural example of the back panel part 15 to which a terminal can move. It is a figure for demonstrating the connection board 81. FIG. It is a block diagram which shows the electrical structural example of a bay structure type television receiver. 3 is a block diagram illustrating a configuration example of a TV signal processing unit 106. FIG. It is a block diagram which shows the structural example of the electronic device 11 (12). It is a flowchart explaining the process of TV signal processing part 106 (electronic device 11 (12)). It is a figure for demonstrating the process which each of the TV signal process part 106 and the electronic device 11 performs independently. It is a figure for demonstrating the process which TV signal processing part 106 and the electronic device 11 perform in cooperation sharing. It is a flowchart explaining the process which TV signal processing part 106 and the electronic device 11 perform in cooperation sharing. 3 is a diagram illustrating a configuration example of a signal processing circuit 113. FIG. It is a block diagram which shows the structural example of the learning apparatus which learns the tap coefficient memorize | stored in the coefficient memory | storage part 135. FIG. It is a flowchart explaining the learning process by a learning apparatus. 3 is a block diagram illustrating a configuration example of a coefficient storage unit 135. FIG. It is a flowchart explaining the process of the signal processing circuit 113 comprised with a class classification adaptive processing circuit. It is a figure for demonstrating the process which each of the TV signal process part 106 and the electronic device 11 performs independently. It is a figure for demonstrating the process which TV signal processing part 106 and the electronic device 11 perform in cooperation sharing. It is a block diagram which shows the structural example of one Embodiment of the computer to which this invention is applied.

Explanation of symbols

1 TV rack, 2 CRT, 3 speakers, 4A to 4G bay, 5 bay connection panel, 11 to 13 electronic device, 14 bay adapter box, 14A slot, 15 back panel section, 15A adapter connection panel, 15B adapter back panel , 16A female pin group, 16B male pin group, 21 RGB output terminal, 22 RGB input terminal, 23 audio output terminal, 24 audio input terminal, 25 output S terminal, 26 input S terminal, 27 IEEE1394 terminal, 28 USB terminal, 29 power supply terminal, 31 RGB input terminal, 32 RGB output terminal, 33 audio input terminal, 34 audio output terminal, 35 input S terminal, 36 output S terminal, 37 IEEE 1394 terminal, 38 USB terminal, 39 Power terminal, input for 41 RGB Terminal, 42 RGB output terminal, 43 audio input terminal, 44 audio output terminal, 45 input S terminal, 46 output S terminal, 47 IEEE1394 terminal, 48 USB terminal, 49 power supply terminal, 51 slit plate, 52 slit, 53 Terminal, 53A fuselage, 54 terminal, 54A fuselage, 61 bottom plate, 62 insulator, 63 fuselage, 64 contact fitting, 65 screw, 66 insulation film, 67 fuselage, 68 contact fitting, 71 insertion port, 81 connection Plate, 82L, 82R slit for fitting, 83 patch plate, 84 terminal, 85 frame hole, 86 connection terminal, 87 frame groove, 88 frame, 89 conductive part, 101 remote controller, 102 main controller, 103 selector controller, 104 selector, 105 Tuner, 106 TV signal processor, 107 H , 111 I / F, 112 controller, 113 signal processing circuit, 121 I / F, 122 controller, 123 signal processing circuit, 124 specific block, 131 buffer, 132 prediction tap extraction circuit, 133 class tap extraction circuit, 134 class classification circuit , 135 coefficient storage unit, 136 product-sum operation circuit, 137 function control unit, 141 teacher data generation circuit, 142 teacher data memory, 143 student data generation circuit, 144 student data memory, 145 prediction tap extraction circuit, 146 class tap extraction circuit , 147 classifying circuit, 148 the normal equation adding circuit, 149 tap coefficient decision circuit 150 the coefficient memory, 151 control circuit, 161, 162 a selector, 163 ₁ to 163 _N coefficient memories, 171 conversion unit, 172 spatial resolution direction Processing unit, 173 noise removal processing unit, 174 MPEG decoder, 175 distortion removal processing unit, 176 selector, 201 bus, 202 CPU, 203 ROM, 204 RAM, 205 hard disk, 206 output unit, 207 input unit, 208 communication unit, 209 Drive, 210 I / O interface, 211 Removable recording medium

Claims (4)

Connection means to which another device for performing signal processing of the first function is connected;
Determination means for determining whether or not the other device connected to the connection means is a specific other device corresponding to itself;
To the input signal, by filtering said first signal processing function, and signal processing means for performing signal processing of the second function different from the signal processing of the first function,
When the determination unit determines that the other device is the specific other device corresponding to itself, the signal processing performed by the signal processing unit is performed by changing a filter coefficient of the filter processing. And control means for changing only to the signal processing of the second function,
The signal processing means includes a prediction tap that is input image data as the input signal used to predict output data as an output signal to be obtained without changing a physical configuration, and the output data. A circuit for performing a process specialized for one processing procedure for performing a product-sum operation with the tap coefficient as the filter coefficient to obtain is arranged,
The input signal is processed by both the signal processing means and the other device. The signal processing apparatus according to claim 1, wherein the filtering process is an adaptive process in which the tap coefficient is obtained by learning. The adaptive processing classifies a class based on a level distribution pattern of the input signal, adaptively determines the tap coefficient according to the class, and performs a product-sum operation using the determined tap coefficient. The signal processing apparatus according to claim 2, wherein the input signal is a class classification adaptive process. Connection means to which another device for performing signal processing of the first function is connected;
Determination means for determining whether or not the other device connected to the connection means is a specific other device corresponding to itself;
The first function signal processing and the first function are performed on the input signal by the arithmetic processing using the coefficient and the input signal having a coefficient obtained in advance by learning in the filter processing. Signal processing means for performing signal processing of a second function different from the signal processing of
When the determination unit determines that the other device is the specific other device corresponding to itself, the signal processing performed by the signal processing unit is changed to the second by changing the coefficient. Control means for changing only to signal processing of the function of
The signal processing means includes
A storage unit for storing the coefficient;
An arithmetic processing unit that performs the arithmetic processing using the coefficient and the input signal in response to a signal from the control means;
The arithmetic processing unit obtains a prediction tap which is input image data as the input signal used to predict output data as an output signal to be obtained without changing a physical configuration, and obtains the output data. Therefore, the signal processing apparatus is configured as a circuit for performing a process specialized for one processing procedure for performing a product-sum operation with the tap coefficient as the filter coefficient .

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