JPH11296402A - Signal processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To share a signal processing circuit and to provide a signal processor whose scale is compact by freely using any signal processing circuit which can be used in the processor. SOLUTION: Signal processing circuits 12A1-12An which can be used in a signal processor are constituted so that any of the circuits can freely be used. In the processor, a processing circuit unit 12 is constituted of the signal processing circuits 12A1-12An having the same processing functions. A signal distribution means 11 inputs selection information form a circuit selection means 15 and distributes a signal section which is to be processed this time to the selected signal processing circuit. A comparison means 13 compares the processing results of the signal processing circuit inputting and processing the distributed signal sections and outputs a compared result to a fault judgment circuit 14. The fault judgment circuit 14 judges whether the signal processing circuit which breaks down exists in the selected signal processing circuit or not based on the compared result and outputs it to a circuit selection means 15 and an output selection means 16 as fault information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal processing apparatus for processing an input signal in parallel using a plurality of signal processing circuits, and more particularly, to a signal processing apparatus having a function of determining a failure of a signal processing circuit, and a signal processing apparatus. The present invention relates to a signal processing device capable of always outputting a correct processing result even when a signal processing circuit of a unit has a failure.

[0002]

2. Description of the Related Art FIG. 22 is a block diagram showing a conventional signal processing device. This signal processing device is provided with a plurality of signal processing circuits so that an appropriate processing result can be output. It is. As shown in FIG. 22, the signal processing device includes a signal distribution circuit 1, processing circuit units 2A1, 2A2,. . . 2An and majority decision circuits 3A1, 3A2,. . . 3An. here,
n is an arbitrary integer of 2 or more. Each processing circuit unit 2
A1, 2A2,. . . 2An is composed of three signal processing circuits. That is, the processing circuit unit 2A1 includes signal processing circuits A1a, A1b and A1c, the processing circuit unit 2A2 includes signal processing circuits A2a, A2b and A2c,. . . The processing circuit unit An includes signal processing circuits Ana, Anb, and Anc.

The signal distribution circuit 1 receives an input signal Si composed of a plurality of signal sections arranged in time series from a signal supply means (not shown), and divides each signal section into each of the processing circuit units 2A1, 2A2,. . . Sort to any of 2An. Specifically, for example, if the first signal section of the input signal Si is distributed to the processing circuit unit 2A1, the signal distribution circuit 1 assigns the first signal section to all the signal processing circuits A1a, A1b and Distribute and supply to A1c. The signal section may be composed of one signal element, or may be composed of a plurality of signal elements.

The signal processing circuits A1a, A1b and A1c included in the processing unit 2A1 have the same processing function, and similarly, each of the other processing units 2A1
2,. . . The signal processing circuits included in 2An also have the same processing function. Each processing circuit unit 2A1, 2
A2,. . . 2An signal processing circuits A1a to A1c,
A2a to A2c,. . . When the signal sections are input, Ana to Anc start processing the signal sections,
Output the processing result.

The majority decision circuit 3A1 receives the processing results of the signal processing circuits A1a, A1b and A1c of the processing circuit unit 2A1 and makes a majority decision. Majority decision circuit 3
A1 divides the signal processing circuits whose processing results coincide with each other into groups by a majority decision, and determines that one of the processing results of the signal processing circuits in the maximum majority signal processing circuit group is a normal output result. And output. The other majority decision circuits 3A2,. . . 3An also has a corresponding processing circuit unit 2A2,. . . The processing result is received from An, a similar majority decision is performed, and a normal processing result is selected and output. As an apparatus for performing such a majority decision, for example, an apparatus described in Japanese Patent Application Laid-Open No. 63-131723 is known.

Next, the operation of the above signal processing device will be described with reference to FIG.
This will be described with reference to the timing chart of FIG. FIG.
Shows the correspondence between each signal section of the input signal and the processing result signal of each signal processing circuit. First, the first signal section S1 of the input signal Si is divided by the signal distribution circuit 1 into the signal processing circuit A1a of the processing circuit unit 2A1,
It is distributed to A1b and A1c. Signal section S1
Signal processing circuits A1a, A1b and A1c
Starts the signal processing and outputs the processing results R1a, R1b and R1c to the majority decision circuit 3A1. In the majority decision circuit 3A1, the three received processing results R1a, R1
The majority decision of b and R1c is performed. At this time, if all of the signal processing circuits A1a, A1b, and A1c have no failure, the processing result signals R1a, R1b, and R1c are output as shown in FIG.
As shown in FIG. In this case, the majority decision circuit 3A1 includes the signal processing circuits A1a, A1b and A
1c is output as the output signal So.

On the other hand, the signal section S2 next to the input signal Si is processed by the signal distribution circuit 1 in the processing circuit unit 2A.
2 signal processing circuits A2a, A2b and A2c. Signal processing circuit A receiving signal section S2
2a, A2b and A2c start signal processing, and determine the processing results R2a, R2b and R2c as a majority decision circuit 3A.
Output to 2. The majority decision circuit 3A2 makes a majority decision on the three received processing results R2a, R2b and R2c. At this time, for example, when the signal processing circuit A2c is out of order, as shown in FIG.
And R2b match each other, and the processing result signal R2c does not match any of the processing results R2a and R2b. In such a case, the majority decision circuit 3
A2 determines that the signal processing circuit A2c has failed,
One of the processing results R2a and R2b of the signal processing circuits A2a and A2b is output as an output signal So.

In the above-described conventional signal processing apparatus, a plurality of predetermined signal processing circuits, ie, three signal processing circuits in the above example, are used for processing one signal section. One of the processing results of the maximum number of signal processing circuit groups having the same result is extracted as an output signal. Therefore, even if one of the signal processing circuits in each processing circuit unit fails, a normal processing result can be output.

[0009]

However, in such a conventional signal processing device, a plurality of processing circuit units are required for parallel processing. In order to perform the above, each processing unit must be constituted by a plurality of signal processing circuits having the same processing function, and there has been a problem that the apparatus scale becomes very large.

Further, in the above-described signal processing device, the reliability of the failure determination is inevitably determined by the number of signal processing circuits of each processing circuit unit. For example, when the reliability is further improved, more reliability is required. It is necessary to perform an operation of replacing each processing circuit unit including the signal processing circuit. Therefore, the conventional signal processing device has a problem that it cannot flexibly respond to a change in the reliability requirement.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. For processing any signal section of an input signal, any available signal processing circuit in the signal processing apparatus is used. However, an object of the present invention is to provide a signal processing device that can be freely used, share a signal processing circuit, and have a compact device scale.

It is another object of the present invention to provide a signal processing apparatus capable of flexibly coping with the same number of signal processing circuits even when the required reliability changes.

[0013]

SUMMARY OF THE INVENTION The present invention provides a signal processing apparatus for processing an input signal composed of a plurality of signal sections arranged in time series and outputting a processing result of each signal section as an output signal. A plurality of signal processing circuits each having at least one of the plurality of signal processing circuits that are not currently in processing operation each time each signal section of the input signal is processed. Circuit selecting means for selecting a plurality of signal processing circuits, signal distributing means for distributing a signal section to be processed this time to the signal processing circuit selected by the circuit selecting means, and signal section distributed by the signal distributing means Comparing means for comparing the processing results of the signal processing circuit which has processed the signal, and a signal which has failed in the signal processing circuit selected by the circuit selecting means. Whether the sense circuit is present, it is characterized in that and a failure determination means for determining based on a result of comparison by the comparing means.

Further, in the present invention, the signal distribution means supplies only a part of a signal section to be processed this time to at least one of the signal processing circuits selected by the line selection means, and the comparison means When comparing the outputs of the respective signal processing circuits, the processing results corresponding to the part of the signal section to be processed this time may be compared with each other.

Further, according to the present invention, if the result of the comparison by the comparing means is that there is at least one signal processing circuit whose processing result does not match, the failure determining means processes the signal section to be processed this time. It may be determined that a faulty signal processing circuit exists in the circuit.

Further, in the present invention, the failure determination means determines, as a result of the comparison by the comparison means, that a signal processing circuit which is not included in the maximum majority signal processing circuit group whose processing results match each other has failed. You may make it.

Further, in the present invention, storage means for temporarily storing at least the part of the signal section to be processed this time is provided, and the circuit selection means determines whether the processing results match each other as a result of the comparison by the comparison means. When there are a plurality of maximum signal processing groups to be processed, another signal processing circuit that is not currently performing a processing operation is newly selected, and the signal distribution unit stores the storage in the signal processing circuit newly selected by the circuit selection unit. The comparison means supplies only part or all of the signal section to be processed this time stored in the means, and the comparison means compares the processing result of the signal processing circuit which has processed the signal section stored in the storage means with this comparison. In addition to the object, the processing result of the signal processing circuit is again compared, and the failure determination means processes the signals as a result of the re-comparison by the comparison means. Result of the maximum signal processing circuit that is not contained in the multiple signal processing circuit group may be determined to be faulty matching.

In the present invention, the circuit selecting means may include a plurality of maximum signal processing circuit groups having the same output as a result of the comparison by the comparing means.
Newly selecting another signal processing circuit which is not currently being processed, and the signal distribution means replaces at least a part of the remaining part following the part of the signal section to be processed this time with the newly selected signal. Supply to the processing circuit, the comparing means newly compares the processing result of the newly selected signal processing circuit with the corresponding portion of the processing result of the signal processing circuit that has processed all of the current signal section, The failure determination means is a result of the new comparison by the comparison means,
If there are still a plurality of maximum signal processing circuit groups whose processing results match each other, among the signal processing circuits that have processed the signal section to be processed this time, the maximum majority signal processing that does not include the newly selected signal processing circuit If the signal processing circuits included in the circuit group are determined to be faulty and the result of the new comparison by the comparing means indicates that the maximum number of signal processing circuit groups whose processing results match each other becomes one, the current processing is performed. Of the signal processing circuits that have processed the signal section to be processed, the signal processing circuits not included in the maximum majority signal processing circuit group obtained by the new comparison may be determined to be faulty.

Further, in the present invention, the line selection means fixedly selects at least one signal processing circuit until the failure determination means determines that a failure has occurred. As a result of the comparison by the comparing means, when the fixedly selected signal processing circuits are not consecutively included in the maximum number of signal processing circuit groups whose processing results match each other, the fixedly selected signal processing circuits are selected. It may be determined that the signal processing circuit has failed.

In the present invention, the result of the determination by the failure determining means may be output in association with the processing result of the input signal.

Further, in the present invention, the circuit selecting means may not select the signal processing circuit determined to be faulty by the fault determining means for the processing of the next and subsequent signal sections. Good.

According to the present invention, there is provided a signal processing apparatus for processing input signals composed of a plurality of signal sections arranged in a time series in parallel, and outputting a processing result of each signal section as an output signal. And a plurality of signals including at least one arbitrary signal processing circuit from among the plurality of signal processing circuits that are not currently being processed each time each signal section of the input signal is processed. Circuit selection means for selecting a processing circuit, and a signal processing circuit selected by the circuit selection means,
A signal distributing means for distributing a signal section to be processed this time, a comparing means for inputting and processing the signal section distributed by the signal distributing means, and comparing a processing result of a signal processing circuit, and a comparison result by the comparing means. Normal circuit detection means for detecting one of the signal processing circuits operating normally based on the signal processing circuit selected by the circuit selection means, and processing of the signal processing circuit detected by the normal circuit detection means. Output selection means for outputting a result as the output signal.

Further, according to the present invention, the normal circuit detecting means includes:
Any one of the signal processing circuits in the maximum number of signal processing circuit groups whose processing results coincide with each other may be detected as a normally operating signal processing circuit.

Further, in the present invention, there is provided storage means for temporarily storing the signal section to be processed this time, and the circuit selecting means is provided when there are a plurality of maximum signal processing circuit groups having the same output. Another signal processing circuit that is not being processed is newly selected, and the signal distribution unit stores the signal section to be processed this time stored in the storage unit in the signal processing circuit newly selected by the circuit selection unit. The comparison means adds the processing result of the signal processing circuit that has processed the signal section stored in the storage means to the current comparison object, compares the processing result of the signal processing circuit again, and The circuit detection means is
Based on the result of the re-comparison by the comparing means, any one of the signal processing circuits included in the maximum number of signal processing circuit groups whose processing results match each other is detected as a normally operating signal processing circuit. It may be.

Further, in the present invention, the signal distribution means supplies only a part of the signal section to be processed this time to at least one of the signal processing circuits selected by the line selection means, May compare the processing results corresponding to the part of the signal section to be processed this time when comparing the outputs of the respective signal processing circuits.

In the present invention, the signal distributing means may include, as a result of the comparison by the comparing means, a signal processing circuit which has processed all portions of the signal section to be processed at this time has a maximum number of signal processings whose processing results coincide with each other. If none is included in the circuit group, the current processing is performed on any one of the signal processing circuits that are supplied and processed only the part of the signal section to be processed this time and are included in the maximum number of signal processing circuit groups. Supply the remaining portion of the signal section to be processed, and the normal circuit detection means supplies the part of the signal section to be processed this time and subsequently supplies the remaining portion to process the signal processing circuit that has processed the entire portion of the signal section. May be detected as the signal processing circuit operating at the same time.

Further, in the present invention, the normal circuit detecting means determines that the signal processing circuits which have processed all the portions of the signal section to be processed this time have the largest number of signals whose processing results match each other as a result of the comparison by the comparing means. When included in the processing circuit group, any one of the signal processing circuits included in the maximum number of signal processing circuit groups and which has processed all of the signal sections to be processed this time is normally operated. May be detected.

In the present invention, there is further provided storage means for temporarily storing a signal section to be processed this time, wherein the circuit selecting means includes a plurality of signal processing circuit groups each having the same processing result. A new signal processing circuit that is not currently being processed is newly selected, and the signal distribution unit stores the signal to be processed this time stored in the storage unit in the signal processing circuit newly selected by the circuit selection unit. Supplying a section, the comparing unit adds the processing result of the signal processing circuit that has processed the signal section stored in the storage unit to the current comparison target, and again compares the processing result of the signal processing circuit; The normal circuit detecting means, as a result of the re-comparison by the comparing means, outputs the newly selected signal If it contains physical circuit, it may be detected the newly selected signal processing circuit as the signal processing circuit is operating normally.

Further, in the present invention, when selecting the signal processing circuit, the circuit selecting means may select all the signal processing circuits from among the signal processing circuits that are not currently performing the processing operation.

Further, in the present invention, the circuit selecting means may select a signal processing circuit so that the plurality of signal processing circuits are used substantially equally through processing of the entire input signal. Good.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description, the first embodiment will be described.
To 5 are embodiments of the signal processing device for checking whether the processing result of the failed signal processing circuit is included in the output signal, and such a type of signal processing device can tolerate some data omission. For example, the present invention can be applied to radar signal processing that defines detection performance with a predetermined probability. On the other hand, the sixth to tenth embodiments are embodiments of the signal processing device capable of constantly outputting the processing result of the normal signal processing circuit. The present invention can be applied to a process in a case where omission is not allowed, for example, an online process of a bank. In addition, the present invention is not limited to the following embodiments, and it is needless to say that any improvements and combinations are possible without departing from the spirit of the invention.

Embodiment 1 FIG. 1 is a block diagram illustrating a configuration of a signal processing device according to a first embodiment of the present invention. The signal processing device according to the first embodiment receives an input signal Si including a plurality of signal sections arranged in time series and performs parallel processing on the input signal Si.
The processing result of each signal section is output as an output signal So. As shown in FIG.
1, a processing circuit unit 12, a comparing unit 13, a failure determining unit 14, a circuit selecting unit 15, and an output selecting unit 16. The signal section represents a part of the input signal, and represents, for example, a unit to be processed divided by time or the like. Further, a signal portion of a minimum section constituting an input signal is referred to as a signal element. In this case, each signal section may be composed of a plurality of signal elements, or may be composed of one signal element.

The processing circuit unit 12 has a plurality of signal processing circuits 12A1, 12A2,. . .
It is composed of 12An. Each of the signal processing circuits 12A1 to 12An automatically starts processing when a signal is input from the signal distribution unit 11, and sends the processing result to the comparison unit 13. Note that n is an integer of 2 or more, and is a numerical value to be determined in consideration of the device scale, cost, the degree of reliability required for signal processing, the fluctuation range of the reliability required, and the like.

Each time the signal selecting section 15 processes each signal section of the input signal Si, the signal selecting circuits 15A1 to 12A1
Of the 12Ans that are not currently processing,
This circuit selects an arbitrary signal processing circuit and outputs circuit selection information representing the information to the signal distribution means 11. In the present embodiment, the circuit selecting means 15 is
From the failure information output from the controller, the one that has not yet determined whether or not there is a failure with respect to the selected signal processing circuit is recognized as still processing, and the other signal processing circuits are processing. Recognize that it is not. In addition, the circuit selection unit 15 excludes the signal processing circuit determined to be faulty by the fault determination unit 14 from selection candidates at the time of processing the next and subsequent signal sections.

The signal distribution unit 11 receives selection information from the circuit selection unit 15 and distributes a signal section to be processed this time to the signal processing circuit selected by the circuit selection unit 15. The comparing means 13 is a signal distributing means 1
The processing section compares the processing results of the signal processing circuits that have input and processed the signal section distributed by the processing section 1 and outputs the comparison result to the failure determination means 14.

The failure determination means 14 determines whether or not a signal processing circuit selected by the circuit selection means 11 includes a failed signal processing circuit based on the result of comparison by the comparison means 13. Is output to the circuit selecting means 15, the output selecting means 16 and, for example, an external post-processing device (not shown). Specifically, the failure determination means 1
For example, when the comparison unit 13 obtains a comparison result indicating that there is one or more signal processing circuits whose processing results do not match, the signal processing circuit that has processed the signal section to be processed at this time includes the failed signal processing circuit. It is determined that a circuit exists. Further, when there is a signal processing circuit that is not included in the maximum majority signal processing circuit group whose processing results match each other, the failure determination unit 14 determines that all the signals that are not included in the maximum majority signal processing circuit group are present. It is determined that the processing circuit has failed. Note that, for example, only two signal processing circuits 12A1 and 12A2 are selected by the line selecting means 15, and as a result of comparison by the comparing means 13, the two signal processing circuits 12A1 and 12A
2 are different from each other, the signal processing circuit 12A
1 and the signal processing circuit 12A2 each constitute a maximum number of signal processing circuit groups. In this case,
The failure determination means includes signal processing circuits 12A1 and 12A2
It can be recognized that at least one of the signal processing circuits has failed, but it cannot be specified.

The output selection means 16 recognizes the signal processing device which has been supplied with the signal section by the signal distribution means 11 and has processed it, based on the failure information from the failure determination means 14, and outputs one of these signal processing circuits. One of the processing results is selected and output to the external post-processing device. Further, when the failure determination means 14 specifies a signal processing circuit candidate that may have failed, the output selection means 16 may avoid selecting a processing result of the signal processing circuit. Good.

The failure information representing the result of the determination by the failure determination means 14 is output in association with the output signal So representing the processing result of the input signal Si. Specifically, the fact that the processing result corresponding to the numbered signal section of the input signal Si may be incorrect, for example, is output from the signal processing device so that the external post-processing device can recognize it. It has become so. Then, the post-processing device or the like generally deletes the output data that may be erroneous and processes the output data as missing data.

Next, the operation of the signal processing device configured as described above will be described with reference to the timing chart of FIG. In addition, in order to simplify the description, in the present embodiment,
It is assumed that the circuit selecting means 15 selects only two arbitrary signal processing circuits which are not performing a processing operation from the processing circuit unit 12.

The first signal section S1 of the input signal Si
Signal processing circuits 12A1 and 12A4
Is selected by the circuit selecting means 15, the signal processing circuits 12A1 and 12A4 output the processing results R1a and R1a.
1b are obtained. The processing results R1a and R1b of the signal processing circuits 12A1 and 12A4 are
If there is a match as shown in FIG. 2, there is no signal processing circuit whose processing result does not match. Therefore, the failure determination means 14 determines that neither of the signal processing circuits 12A1 and 12A4 has failed. And output the same as failure information at the same time.

As shown in FIG. 2, candidates for selecting a signal processing circuit for processing the next signal section S2 are shown in FIG. 2 because the signal processing circuits 12A1 and 12A4 are in the process of processing the signal section S1. Signal processing circuit 1
2A1 to 12A5, the signal processing circuits 12A2 and 12A2
A3 and 12A5. From these selection candidates, the signal processing circuit 1 is used for processing the signal section S2.
2A2 and 12A3 are selected by the circuit selecting means 15. When the signal section S2 is distributed to the signal processing circuits 12A2 and 12A3 by the signal distribution means 11,
In the signal processing circuits 12A2 and 12A3, the processing result R
2a and R2b are obtained. As a result of the comparison by the comparing means 13, as shown in FIG. 2, the processing results R2a and R2a
If b does not match, the failure determination unit 14 determines whether the signal processing circuits 12A2 and 12A2 have processed the signal section S2.
Any of 2A3 is determined to have at least failed.

As can be seen from FIG. 2, the signal processing circuits 12A2 and 12A3 are in the process of processing the signal section S3. 12A
To 12A5, the signal processing circuits 12A1, 12A
4 and 12A5. From these selection candidates, the signal processing circuits 12A1 and 12A5 are selected by the circuit selection means 15.

The processing of each signal section subsequent to the signal section S3 is performed in the same manner as described above. However, in the first embodiment, which of the signal processing circuits whose processing results do not match each other has a fault can be specified. Since it is not possible, both are preferably excluded from the selection candidates.

In the example shown in FIG.
Was only two signal processing circuits,
However, the present invention is not limited to this, and any number of signal processing circuits may be used. Even when another number of signal processing circuits are selected, the same processing can be performed as described above. Generally, as the number of selected signal processing circuits increases, the reliability of failure determination can be improved.

According to the above-described signal processing device of the first embodiment, when processing each signal section, any signal processing circuit can be used as long as it is not in the processing operation. In comparison with a conventional signal processing device that has been assigned a specific signal processing circuit, in other words, compared with a signal processing device that has been automatically assigned to a specific group of a plurality of signal processing circuits, Circuits can be shared, the number of signal processing circuits can be reduced, and as a result, the circuit scale can be reduced. Further, by changing the number of selection circuits by the circuit selection means, it is possible to easily change the reliability of the failure determination without changing the device configuration. Therefore, even if the required specification of reliability changes, it is possible to flexibly cope with the same number of signal processing circuits.

Embodiment 2 FIG. 3 is a block diagram illustrating a configuration of a signal processing device according to a second embodiment of the present invention. The signal processing device according to the second embodiment includes a signal distribution unit 21, a processing circuit unit 22, a comparison unit 23, a failure determination unit 24, a circuit selection unit 25, and an output selection unit 26.
In the following description, in order to avoid redundant description, the description of the same configuration as that of the first embodiment will be omitted, and
Mainly, differences from the first embodiment will be mainly described.

When the signal processing circuit is selected, the circuit selecting means 25 designates at least one signal processing circuit for supplying only a part of the signal section to be processed this time, and instructs the signal distribution means 21. The signal distribution means 21 supplies only a part of the signal section to be processed this time to at least one of the signal processing circuits according to the instruction.
This part of the signal section corresponds to, for example, the signal element described in the first embodiment. Comparison means 23
When comparing the processing results of the respective signal processing circuits, the processing results corresponding to the part of the signal section to be processed this time are compared. The output selection means 26 selects any one of the processing results of the signal processing circuits to which all of the signal sections are supplied, and outputs the result as an output signal So.

Next, the operation of the signal processing device configured as described above will be described with reference to FIG. Note that, for simplicity of explanation, in the present embodiment, the circuit selecting means 25
It is assumed that only two arbitrary signal processing circuits which are not being processed are selected, and one of them is supplied with only a part of each signal section.

The first signal section S1 of the input signal Si
In the processing of (1), the signal processing circuit 22A1 is selected to distribute the entire part of the signal section S1, and the signal processing circuit 22A5 is selected to distribute only a part of the signal section S1. In the signal processing circuits 22A1 and 22A5 to which the distribution signals are respectively input,
Processing results R1a and PR1b are obtained. The comparing means 23 calculates the processing result PR1b and the processing result R1
4A, and if they match as shown in FIG. 4, there is no signal processing circuit whose processing result does not match.
It is determined that neither 2A1 nor 22A5 has failed, and failure information is output. In this case, the processing result R1a of the signal processing circuit 22A1 that has processed the entire portion of the signal section S1 is selected by the output selection means 26, and is output as the output signal So.

The selection candidates of the signal processing circuit for processing the next signal section S2 are the signal processing circuits 22A2 to 22A.
A5. The signal processing circuit 22A5 is used for processing the signal section S1.
Since only a part of the signal section S2 has been processed, the processing is completed in a short time, and the signal section S2 is in an available free state at the start of processing. Here, the signal processing circuit 2
2A3 and 22A5 are selected by the circuit selecting means 25, and the signal distributing means 21 causes the signal processing circuit 22A3 to include all of the signal section S2 in the signal processing circuit 22A.
5, only a part of the signal section S2 is distributed.

In the signal processing circuits 22A3 and 22A5, processing results R2a and PR2b are obtained. The comparing unit 23 compares the processing result PR2b with the corresponding part of the processing result R2a. If the two do not match as shown in FIG.
It is determined that at least one of 3 and 22A5 has failed, and failure information is output. Also in this case, the signal processing circuit 22A3 that has processed all the portions of the signal section S2.
Is selected by the output selection means 26,
It is output as an output signal So.

After the signal section S3, both of the signal processing circuits 22A3 and 22A5 may not be selected. However, since it is not possible to clearly identify which of the circuits is faulty, the signal processing is continued. Both the circuits 22A3 and 22A5 may be left as selection candidates. Furthermore, it is also possible not to select only the signal processing circuit 22A3 by making the following determination.
That is, the signal processing circuit 22A5 is continuously selected for the processing of both the previous signal section S1 and the current signal section S2, and the signal section S1 matches and the signal section S2 does not match. Since there is no continuous mismatch, it is considered that the signal processing circuit 22A3 is likely to have a failure in the processing of the signal section S2. For this reason,
Only the signal processing circuit 22A3 may be excluded from the selection candidates.

For processing the signal section S3, the signal processing circuits 22A2 and 22A4 are selected, and their processing results R3a and PR3b match as shown in FIG. The processing result R3a of the circuit 22A2 is selected and output by the output selecting means 26.

According to the second embodiment, the first embodiment is used.
The same effects as described above can be obtained, and the following effects can also be obtained. That is, in the second embodiment, since only a part of the signal section is supplied to at least one of the selected signal processing circuits, the processing of such a signal processing circuit is completed in a short time and is continued. Can be used continuously for processing signal sections,
The sharing of the above-described signal processing circuit can be further enhanced.

Embodiment 3 FIG. FIG. 5 is a block diagram illustrating a configuration of a signal processing device according to a second embodiment of the present invention. The signal processing device of this embodiment includes a signal distribution unit 31, a processing circuit unit 32, a comparison unit 33, a failure determination unit 34, a circuit selection unit 35, an output selection unit 36, and a storage unit 37. The third embodiment is similar to the second embodiment, but differs in the following points. That is, in the third embodiment, when there are a plurality of maximum majority signal processing circuits,
The signal section stored in the storage means 37 is supplied to another signal processing circuit, and the result of the processing is added to make a majority decision again to further identify the faulty signal processing circuit. is there. Note that the third embodiment
The components configured in the same manner as in the second embodiment are omitted to avoid redundant description.

The storage means 37 temporarily stores at least a part of the signal section to be processed this time. When there are a plurality of maximum signal processing groups whose processing results match each other, the circuit selection unit 35 newly selects another signal processing circuit that is not currently performing the processing operation. The signal distribution means 31 supplies only a part or all of the signal section to be processed this time stored in the storage means 37 to the signal processing circuit newly selected by the circuit selection means 35.

The comparison means 33 adds the output of the signal processing circuit that has processed the signal section stored in the storage means 31 to the current comparison target, and compares the output of the signal processing circuit again. As a result of the re-comparison by the comparing means, the failure determining means 34 determines that a signal processing circuit which is not included in the maximum majority signal processing circuit group whose processing results match each other has failed.

Next, the operation of the signal processing device configured as described above will be described with reference to FIG. For simplicity of description, in the present embodiment, the circuit selecting means 35
Normally, only two arbitrary signal processing circuits which are not in processing operation are selected, one of which supplies the whole part of each signal section, the other supplies only a part of each signal section, The signal processing circuit newly selected when there are a plurality of maximum majority signal processing circuit groups includes:
It is assumed that only a part of the signal section stored in the storage means 37 is supplied.

The processing of the signal section S1 is performed in the same manner as in the second embodiment because the maximum number of signal processing groups that match each other is one. Here, regarding the processing of the signal section S2, the processing results R2a and PR of the signal processing circuits 32A2 and 32A4 are used.
2b do not match and the maximum number of signal processing groups is two, that is, the group consisting of one signal processing circuit 32A2 and the group consisting of one signal processing circuit 32A4 are both the maximum number of signal processing groups.
5, the signal processing circuit 32A5 is newly selected. A part of the signal section S2 stored in the storage unit 37 is supplied to the signal processing circuit 32A5 via the signal distribution unit 31, and the comparison unit 33 adds the processing results R2a and PR2b of the signal processing circuits 32A2 and 32A4 to the signal processing circuit 32A5. The processing result PR2c of 32A5 is added as a comparison target, and the comparison is performed again. Here, as shown in FIG. 6, the processing result R2a and the processing result PR2c do not match, and the processing result PR2b and the processing result PR2c match. As a result, the maximum majority signal processing circuit group becomes only one of the groups composed of the signal processing circuits 32A4 and 32A5, and is included in the maximum majority signal processing circuit groups whose outputs match each other by the failure determination unit 24. It is determined that the signal processing circuit 32A2 that is not present has a failure, and failure information is output.

According to the above-described signal processing apparatus, the same effects as those of the above-described second embodiment can be obtained. Further, when a signal processing circuit processed this time includes a faulty one, The faulty circuit can be identified,
In the processing of the signal sections after the next time, it is possible to reliably exclude only those that have really failed from the selection candidates. Further, by specifying the failed signal processing circuit, when outputting the processing result of each signal section, it is possible to accurately notify the post-processing device or the like whether or not the output is the processing result of the failed circuit. .

Embodiment 4 FIG. 7 is a block diagram illustrating a configuration of a signal processing device according to a fourth embodiment of the present invention. The signal processing device according to the fourth embodiment includes a signal distribution unit 41, a processing circuit unit 42, a comparison unit 43, a failure determination unit 44, a circuit selection unit 45, and an output selection unit 46.
In order to avoid redundant description, description of components similar to those of the above-described second embodiment will be omitted, and portions different from the second embodiment will be described below.

If, as a result of the comparison by the comparing means 43, there are a plurality of maximum majority signal processing circuit groups whose processing results coincide with each other, the circuit selecting means 45 newly selects another signal processing circuit which is not currently in the processing operation. Signal distribution means 41
Supplies at least a portion of the remaining portion following the portion of the signal section to be processed this time to a newly selected signal processing circuit. The comparing unit 43 newly compares the output of the newly selected signal processing circuit with the corresponding part of the processing result of the signal processing circuit that has processed all the parts of the current signal section.

If the result of the new comparison by the comparing means 43 is that there are still a plurality of maximum signal processing circuit groups whose outputs match each other, the failure judging means 44 selects one of the signal processing circuits which have processed the signal section to be processed this time. It is determined that the signal processing circuits included in the maximum number of signal processing circuit groups not including the newly selected signal processing circuit have failed. Further, if the maximum number of signal processing circuit groups whose outputs match each other becomes one as a result of the new comparison by the comparing means 43, the failure determination means 44 determines the signal processing circuit which has processed the signal section to be processed this time. It is determined that the signal processing circuits not included in the maximum majority signal processing circuit group obtained by the new comparison are out of order.

Next, the operation of the signal processing device configured as described above will be described with reference to FIGS. For the sake of simplicity, in the present embodiment, the circuit selection means 45 normally selects only two arbitrary signal processing circuits that are not performing a processing operation, and one of the two signal processing circuits includes the entire portion of each signal section. Distribution, and to the other, only a portion of each signal section.

As shown in FIGS. 8 and 9, regarding the processing of the signal section S1, the maximum number of signal processing groups that match each other as a result of the processing are processed by the signal processing circuit 42A1.
Since this is only one of the groups consisting of A and 42A4, it is processed in the same manner as in the second embodiment. Here, regarding the processing of the signal section S2, the signal processing circuit 42
Since the processing results R2a and PR2b of A2 and 42A4 do not match and the maximum number of signal processing groups is two, that is, the group consisting of the signal processing circuits 42A2 and the group consisting of the signal processing circuits 42A4 are both the maximum number signal processing groups. The signal processing circuit 42A5 is newly selected by the selection means 45. To the newly selected signal processing circuit 42A, a part of the remaining part of the part supplied to the signal processing circuit 42A4 in the signal section S2 is supplied by the signal distribution means 41. By the comparing means 43, the processing result PR2 of the signal processing circuit 42A5 is output.
c and the corresponding part of the processing result R2a of the signal processing circuit 42A2 are newly compared.

FIG. 8 shows the processing result PR of the processing result 42A5.
2c and the corresponding portion of the processing result R2a of the signal processing circuit 42A2 do not match. In this case, the result of the new comparison by the comparing means 43 is the signal processing circuit 42
There are two maximum majority signal processing circuit groups, a group consisting of A2 and a group consisting of signal processing circuits 42A5. Therefore, the failure determination means 44 determines whether the signal processing circuit 42A has processed the signal section S2 to be processed this time.
The signal processing circuit 42A2 included in the largest majority signal processing circuit group that does not include the newly selected signal processing circuit 42A5 among the groups 2, 42A4 and 42A5, that is, the signal processing circuit 42A2 included in the group including the signal processing circuit 42A2 fails. It is determined that there is.

FIG. 9 shows the processing result PR2c of the signal processing circuit 42A5 and the processing result R2 of the signal processing circuit 42A2.
3A shows a case where the corresponding portion of the signal processing circuit 42A2 matches the corresponding part of the signal processing circuit 42A2.
And only one group consisting of the signal processing circuit 42A5. Therefore, among the signal processing circuits 42A2, 42A4, and 42A5 that have processed the signal section S2, the signal processing circuit 42A4 that is not included in the largest majority signal processing circuit group based on the new comparison, that is, the group including the signal processing circuits 42A2 and 42A5. Is determined to have failed.

In FIG. 8, since it is not determined that the signal processing circuit 42A4 has failed in the processing of the signal section S2, the signal processing circuit 42A4 is also selected in the processing of the signal section S3.
Then, since it is determined that a failure has occurred, the signal section S3 is excluded from selection targets and another signal processing circuit 42A6 is selected.

According to the signal processing apparatus of the fourth embodiment, the same effects as those of the second embodiment can be obtained, and furthermore, when the signal processing circuit processed this time includes a faulty signal processing circuit. In addition, the faulty circuit can be specified, and only the truly faulty circuit can be reliably excluded from the selection candidates for the processing of the next and subsequent signal sections. Further, by specifying the failed signal processing circuit, when outputting the processing result of each signal section, it is possible to accurately notify the post-processing device or the like whether or not the output is the processing result of the failed circuit. .

Embodiment 5 FIG. 10 is a block diagram illustrating a configuration of a signal processing device according to a fifth embodiment of the present invention. The signal processing device according to the present embodiment includes a signal distribution unit 51, a processing circuit unit 52, a comparison unit 53, a failure determination unit 54, a circuit selection unit 55, and an output selection unit 56.
In order to avoid redundant description, description of components similar to those of the above-described second embodiment will be omitted, and portions different from the second embodiment will be described below.

The line selection means 55 fixedly selects at least one signal processing circuit until the failure determination means 54 determines that a failure has occurred. Failure determination means 54
If the signal processing circuits fixedly selected as a result of the comparison by the comparing means 53 are not consecutively included in the maximum number of signal processing circuit groups whose outputs match each other, the signal processing circuits fixedly selected It is determined that the circuit has failed.

Next, the operation of the signal processing apparatus according to the fifth embodiment will be described with reference to FIG. For the sake of simplicity, in the fifth embodiment, the circuit selecting means 55 selects two signal processing circuits that are not performing a processing operation, arbitrarily selects one of them, and fixedly selects the other. It is assumed that only a part of each signal section is supplied to a fixedly selected signal processing circuit. At first, the signal processing circuit 52A4 is a circuit which is fixedly selected.

In the example shown in FIG. 11, the signal section S
1 does not match the processing result R1a of the signal processing circuit 52A1 and the processing result PR1b of the signal processing circuit 52A4, and subsequently, the processing result R2a of the signal processing circuit 52A2 that has processed the signal section S2 and the signal processing circuit 52A4
Did not match with the processing result PR2b. At this time, the failure determination means 54 determines that the signal processing circuit 52A4 has failed. The circuit selection means 55 excludes the signal processing circuit 52A4 which has been fixedly selected up to now from the selection target, and as shown in FIG. 11, from the next and subsequent signal sections S3, a new signal processing circuit 55A5 It is fixedly selected until a failure is determined.

According to the signal processing apparatus of the fifth embodiment, the same effects as in the second embodiment can be obtained.
Further, the following effects can be obtained. That is, in the fifth embodiment, at least one signal processing circuit is fixedly selected unless a mismatch continuously occurs, so that the fixedly selected signal processing circuit operates normally. The reliability of the failure detection can be further improved as compared with another embodiment in which all the selected signal processing circuits may be regarded as having the same probability of failure. In addition, the presence of the reference signal processing circuit makes it possible to easily identify the faulty signal processing circuit without using a majority decision or the like.

Embodiment 6 FIG. FIG. 12 is a block diagram illustrating a configuration of a signal processing device according to a sixth embodiment of the present invention. The signal processing device of the present embodiment receives an input signal Si including a plurality of signal sections arranged in time series and performs parallel processing,
The processing result of each signal section is output as an output signal So. As shown in FIG. 12, the signal processing device includes a signal distribution unit 51, a processing circuit unit 62, a comparison unit 63, a normal circuit detection unit 64, a circuit selection unit 65, and an output selection unit 66. Note that each signal section may be composed of a plurality of signal elements, or may be composed of one signal element.

The processing circuit unit 62 includes a plurality of signal processing circuits 62A1, 62A2,. . .
62An. Each of the signal processing circuits 62A1 to 62An automatically starts processing when a signal is input from the signal distribution unit 61, and sends its output to the comparison unit.
Note that n is an integer of 2 or more, and is a numerical value to be determined in consideration of the device scale, cost, the degree of reliability required for signal processing, the fluctuation range of the reliability required, and the like.

Each time a signal section of the input signal Si is processed, the circuit selection means 65 outputs a plurality of signal processing circuits 62
A plurality of signal processing circuits including at least one arbitrary signal processing circuit are selected from those not currently in the processing operation among A1 to 62An. Signal distribution means 6
Numeral 1 is for distributing the signal section to be processed this time to the signal processing circuit selected by the circuit selecting means 61. The comparing means 63 is for comparing the output of the signal processing circuit which has input and processed the signal section distributed by the signal distribution means 61.

The normal circuit detecting means 64 detects one of the signal processing circuits selected by the circuit selecting means 65, which is operating normally, based on the result of the comparison by the comparing means 63. . More specifically, in the present embodiment, the normal circuit detection unit 64 determines, based on the comparison result by the comparison unit 63, one of the signal processing circuits in the maximum majority signal processing circuit group whose processing results match each other. It is detected as a normally operating signal processing circuit. The output selection means 66 outputs the output of the signal processing circuit detected by the normal circuit detection means 64 as, for example, an external post-processing device (not shown) as an output signal So.

Next, the operation of the signal processing device configured as described above will be described with reference to FIG. For simplicity of description, in the present embodiment, the circuit selecting means 65
Is to select only three arbitrary signal processing circuits that are not currently being processed from the processing circuit unit 62.

As shown in FIG. 13, for processing the signal section S1 of the input signal Si, the signal processing circuits 62A2, 62A3 and 62A6 are selected by the circuit selecting means 65, and the selected signal processing circuits 62A2, 62A2 62
The signal section S1 is distributed to A3 and 62A6 by the signal distribution means 61. As a result of the signal processing, the signal processing circuits 62A2, 62A3, and 62A6 obtain processing results R1a, R1b, and R1c, respectively. The comparison result 63 compares the processing results R1a, R1b and R1c, and the normal circuit detection means 64 compares the processing results R1a, R1b and R1c.
Is determined from the comparison result, and one of the maximum majority signal processing circuit groups whose outputs match each other is detected as a normally operating signal processing circuit.

For the processing of the signal section S1, as shown in FIG. 13, the selected signal processing circuit 62A
Processing results R1a, R1b of 2, 62A3 and 62A6
And R1c all match, the maximum number of signal processing circuit groups are the signal processing circuits 62A2, 62A3.
And 62A6. Therefore, the normal circuit detecting means 64 is connected to the signal processing circuit 62
Any one of A2, 62A3, and 62A6, for example, the signal processing circuit 62A2 is detected as a normally operating signal processing circuit. Next, the normal circuit detecting means 6
4, the processing result R of the signal processing circuit 62A2 detected by
1A is selected by the output selection means 66 and the output signal So
Is output as

For processing of the next signal section S2, the signal processing circuits 62A1, 62A4
And 62A5 are selected, and the signal section S2 is distributed to the selected signal processing circuit by the signal distribution means 61. As a result of the signal processing, the signal processing circuit 62A
1, 62A4 and 62A5, the processing result R
2a, R2b and R2c are obtained. The processing results R2a, R2b and R2c are compared by the comparing means 63,
A majority decision is made by the normal circuit detecting means 64 from the comparison result of the comparing means 63, and any one of the maximum majority signal processing circuit groups whose outputs match each other is detected as a normally operating signal processing circuit. .

For the processing of the signal section S2, as shown in FIG. 13, the processing result R2a and the processing result R2
b does not match, the processing result R2a and the processing result R2c do not match, and the processing result R2b and the processing result R2c match. In this case, the group consisting of the signal processing circuits 62A4 and 62A5 is the maximum number of signal processing circuit groups, and any one of the signal processing circuits 62A4 and 62A5, for example, the signal processing circuit 62A4 is determined to be normal by the normal circuit detecting means 64. Is detected as the signal processing circuit that is operating. Next, the processing result R2b of the signal processing circuit 62A4 detected by the normal circuit detecting means 64 is selected by the output selecting means 66 and output as the output signal So. Further, in this case, the normal circuit detection means 64 determines that the signal processing circuit 62A1 which has not been included in the maximum majority signal processing circuit group.
Is determined as a failed signal processing circuit, and the circuit selecting means 65
And the circuit selection means 65 is excluded from the selection candidates for the processing of the next and subsequent signal sections.

According to the signal processing apparatus of the sixth embodiment, when processing each signal section, any signal processing circuit can be used as long as it is not in a processing operation. A signal processing circuit is compared with a conventional signal processing device to which a specific signal processing circuit is assigned, in other words, compared to a signal processing device which is automatically assigned to a specific group including a plurality of signal processing circuits. Can be shared, the number of signal processing circuits can be reduced, and as a result, the circuit scale can be reduced. Also, by changing the number of selection circuits by the circuit selection means, the reliability of normal circuit detection can be changed without changing the device configuration. Therefore, even if the required specification of reliability changes, it is possible to flexibly cope with the same number of signal processing circuits.

Embodiment 7 FIG. 14 is a block diagram illustrating a configuration of a signal processing device according to a seventh embodiment of the present invention. FIG.
As shown in the figure, the signal processing device of the seventh embodiment includes a signal distribution unit 71, a processing circuit unit 72, a comparison unit 73, a normal circuit detection unit 74, a circuit selection unit 75, an output selection unit 76, and a storage unit 77. ing. In order to avoid redundant description, description of components configured in the same manner as in the above-described sixth embodiment will be omitted, and portions different from the sixth embodiment will be described below.

The storage means 77 temporarily stores the signal section to be processed this time. Circuit selection means 7
When there are a plurality of maximum signal processing circuit groups whose outputs match each other, 5 selects another signal processing circuit which is not currently processing. The signal distribution unit 71 supplies the signal section to be processed this time stored in the storage unit 77 to the signal processing circuit newly selected by the circuit selection unit 75.

The comparison means 73 adds the output of the signal processing circuit which has processed the signal section stored in the storage means 77 to the current comparison object, and compares the output of the signal processing circuit again. The normal circuit detecting means 74, based on the re-comparison result by the comparing means 73, causes any one of the signal processing circuits included in the maximum majority signal processing circuit group having the same output to perform the signal processing normally operating. Detect as a circuit.

Next, Embodiment 7 configured as described above
The operation of this signal processing device will be described with reference to FIG.
For the sake of simplicity, in the present embodiment, it is assumed that the circuit selecting means 75 selects only two arbitrary signal processing circuits that are not performing a processing operation from the processing circuit unit 72.

First signal section S1 of input signal Si
In the signal processing of FIG. 15, since the respective processing results R1a and R1b of the selected signal processing circuits 72A1 and 72A4 match as shown in FIG.
No. 4 can detect any one of the signal processing circuits 72A1 and 72A4 as a normally operating signal processing circuit without any problem.

On the other hand, in the signal processing for the next signal section S2, the selected signal processing circuits 72A2 and 72A
3, the processing results R2a and R2b do not match, and the group consisting of the signal processing circuit 72A2 and the group consisting of the signal processing circuit 72A3 form a maximum majority signal processing circuit group. By the determination, a normally operating signal processing circuit cannot be detected. For this reason, the signal processing circuit 72A5 that is not performing the operation processing is selected as a new signal processing circuit by the circuit selecting means 75, and the signal distributing means 71
Will be notified. As a result, the signal section S2 to be processed this time stored in the storage means 77 is stored in the signal processing circuit 7
2A5, and a processing result R2c is obtained. Then, the processing results R2a and R2b are compared again by the comparing means 73 together with the processing result R2c of the signal processing circuit 72A5.

As shown in FIG. 15, the processing result R2b
If R2c and R2c match, the maximum majority signal processing circuit group is only one of the groups including the signal processing circuits 72A3 and 72A5. Therefore, in this case, the normal circuit detecting means 74 outputs the signal processing circuits 72A3 and 72A3.
Either 2A5 can be detected as a normally operating signal processing circuit. At this time, at the same time, the normal circuit detection means 74 determines that the signal processing circuit 72A2 which was not included in the maximum majority signal processing circuit group at the time of the re-comparison is faulty, and notifies the circuit selection means 75. As a result, the circuit selecting means 75 excludes the signal processing circuit 72A2 from the selection target in the processing of the signal section after the next time.

According to the signal processing circuit of the seventh embodiment, as a result of the comparison by the comparing means 73, even if there are a plurality of maximum signal processing circuit groups, a normally operating signal processing circuit is easily detected. be able to. In addition, it is possible to determine that a signal processing circuit which is no longer included in the maximum number of signal processing circuit groups by the re-comparison is faulty, and it is also possible to easily detect a faulty circuit.

Embodiment 8 FIG. FIG. 16 is a block diagram showing a configuration of the eighth embodiment of the signal processing device of the present invention. The signal processing device of this embodiment includes a signal distribution unit 81, a processing circuit unit 82, a comparison unit 83, a normal circuit detection unit 84,
It comprises a circuit selecting means 85 and an output selecting means 86. In order to avoid redundant description, description of components configured in the same manner as in the above-described sixth embodiment will be omitted, and portions different from the sixth embodiment will be described below.

The signal distribution means 81 supplies only a part of the signal section to be processed this time to at least one of the signal processing circuits selected by the line selection means 85 in accordance with an instruction from the circuit selection means 85. Comparison means 83
When comparing the outputs of the respective signal processing circuits, the outputs corresponding to the part of the signal section to be processed this time are compared with each other. The normal circuit detecting means 84 sequentially notifies the comparison result of the comparing means to the circuit selecting means 85.

As a result of the comparison by the comparing means 83, the signal distributing means 81 does not include any signal processing circuits which have processed all portions of the signal section to be processed this time in the maximum number of signal processing circuit groups whose outputs coincide with each other. In this case, according to the instruction of the circuit selecting means 85, only one of the signal processing circuits supplied and processed only the part of the signal section to be processed this time is to be processed this time by any one included in the maximum number of signal processing circuit groups. Supply the rest of the signal section.

The normal circuit detecting means 84 converts the signal processing circuit which has been supplied with the part of the signal section to be processed this time and subsequently supplied with the remaining part and processes the entire signal section as a normally operating signal processing circuit. To detect.

Next, the eighth embodiment configured as described above
The operation of the signal processing device will be described with reference to FIG.
For simplicity of explanation, in the present embodiment, the circuit selecting means 85 selects only three arbitrary signal processing circuits which are not performing a processing operation from the processing circuit unit 82, and selects one of all three signal processing circuits as one of them. And only supply a portion of each signal section to the remaining two.

For the processing of the first signal section S 1 of the input signal, the circuit selecting means 85 selects the signal processing circuit 8.
2A2, 82A3 and 82A5 are selected. FIG.
As shown in the table, these processing results R1a, PR1b
When the corresponding portions of PR1c and PR1c all match, signal processing circuits 82A2, 82A3 and 82A3
Only one of the groups consisting of A5 becomes the maximum number of signal processing circuit groups, and the signal processing circuit 82A which has processed the entire portion of the signal section S1 by the normal circuit detection means 84.
2 is detected as a normally operating signal processing circuit,
The processing result R1a of the signal processing circuit 82A2 is selected by the output selection means 86 and output as the output signal So.

In the processing of the next signal section S2, the processing result R2a of the signal processing circuit 82A1 and the processing result PR2b of the signal processing circuit 82A4 do not match, and the processing result PR2b of the signal processing circuit 82A4 and the signal processing circuit 8
The processing result PR2c of 2A5 matched. In this case, the signal processing circuits 82A4 and 82A whose processing results match each other
The maximum majority signal processing circuit group including A5 does not include the only signal processing circuit 82A1 that has processed the entire portion of the signal section S2.

When such a comparison result is obtained, any one of the signal processing circuits 82A4 and 82A5 that have been supplied and processed only the part of the signal section S2 to be processed this time is included in the largest majority signal processing circuit group. Finally, in this example, the remaining portion of the signal section S2 to be processed this time is supplied to the signal processing circuit 82A4. Then, the signal processing circuit 82A4 is detected as a normally operating signal processing circuit by the normal circuit detecting means 84, and the entire processing result R2b of the signal processing circuit 82A4 is selected and output as the output signal So.

According to the signal processing apparatus of the eighth embodiment, the following effects can be obtained in addition to the effects of the sixth embodiment. That is, in the eighth embodiment, even if no signal processing circuit that has processed all portions of the signal section to be processed this time is included in the maximum majority signal processing circuit group, the signal section of the maximum majority signal processing circuit group The remaining part is supplied to any of the signal processing circuits that process a part of the signal processing circuit, and the signal processing circuit to which the remaining part is supplied is detected as a normally operating signal processing circuit. Therefore, usually, the number of signal processing circuits for processing all parts of the signal section can be reduced,
As a result, even with a small number of signal processing circuits, the number of signal processing circuits that are not performing operation processing can be increased, and the signal processing circuits can be more effectively utilized.

Embodiment 9 FIG. FIG. 18 is a block diagram showing the configuration of the ninth embodiment of the signal processing device of the present invention. FIG.
As shown in FIG. 8, the signal processing device includes signal distribution means 91,
It comprises a processing circuit unit 92, a comparing means 93, a normal circuit detecting means 94, a circuit selecting means 95 and an output selecting means 96. In order to avoid redundant description, description of components configured in the same manner as in the above-described sixth embodiment will be omitted, and portions different from the sixth embodiment will be described below.

If the signal processing circuits that have processed all the sections of the signal section to be processed this time are included in the maximum number of signal processing circuit groups whose outputs match each other, as a result of the comparison by the comparing means 93, Any one of the signal processing circuits included in the maximum number of signal processing circuit groups and processing all the signal sections to be processed this time is detected as a normally operating signal processing circuit.

Next, the ninth embodiment configured as described above
Will be described with reference to FIG. In addition, in order to simplify the description, in the present embodiment,
The circuit selecting means 95 selects three arbitrary signal processing circuits which are not being processed, distributes all of the signal sections to the two, and supplies only a part of each of the remaining signal sections. I do.

As shown in FIG. 19, regarding the processing of the first signal section S1 of the input signal Si, the signal processing circuits 92A2, 92 selected by the circuit selecting means 95
Processing results R1a, R1b and P of A3 and 92A6
When all the corresponding parts of R1c are identical,
These signal processing circuits 92A2, 92A3 and 92A6
Is the maximum number of signal processing circuit groups. According to the majority decision of the normal circuit detecting means 94, one of the signal processing circuits 92A2 and 92A3 which has processed all the portions of the signal section S1 is detected as a normally operating signal processing circuit, and the processing result is output to the output selecting means. The signal is selected by the signal 96 and output as the output signal So.

In the processing of the next signal section S2, the processing result R2A of the signal processing circuit 92A1 and the corresponding part of the processing result PR2c of the signal processing circuit 92A5 match, and the processing result R2b of the signal processing circuit 92A4 and the signal processing The result corresponding to the processing result PR2c of the circuit 92A5 did not match. In this case, the signal processing circuits 92A4 and 92A4
The group consisting of 2A5 is the maximum majority signal processing circuit group. Therefore, the signal processing circuit 92A4 which is included in the maximum number of signal processing circuit groups and has processed all portions of the signal section S2 is detected by the normal circuit detection means 94 as a signal processing circuit operating normally, and the processing result R2b is selected by the output selection means 96 and output as the output signal So.

According to the ninth embodiment, the following effects can be obtained in addition to the effects of the sixth embodiment. That is, in the ninth embodiment, no matter how many signal processing circuits that process only a part of the signal section are included in the maximum majority signal processing circuit group, the entire majority of the signal section is included in the maximum majority signal processing circuit group. If at least one signal processing circuit that has processed is included, the signal processing circuit can be detected as a normally operating signal processing circuit. Also, since the number of signal processing circuits that process all parts of the signal section to be processed this time is set to be greater than the number of signal processing circuits that process only a part, all parts of the signal section are processed. It is possible to increase the possibility that the signal processing circuit to be included in the maximum majority signal processing circuit group, and it is possible to easily detect a normally operating signal processing circuit only by performing a simple majority decision.

As can be seen from the above description, the present embodiment 9
Is similar to the above-described eighth embodiment, but the eighth embodiment differs from the eighth embodiment in that the number of signal processing circuits for processing all portions of each signal section is larger than the number of signal processing circuits for processing a part of each signal section. On the other hand, the ninth embodiment is suitable when the number of signal processing circuits for processing the entire part of the signal section is larger than the number of signal processing circuits for processing a part of the signal section.

Embodiment 10 FIG. FIG. 20 is a block diagram showing a configuration of the tenth embodiment of the signal processing device of the present invention.
As shown in FIG. 20, the signal processing device includes a signal distribution unit 1
01, processing unit 102, comparing means 103, normal circuit detecting means 104, circuit selecting means 105, output selecting means 1
06 and storage means 107. In order to avoid redundant description, description of components configured in the same manner as in the above-described sixth embodiment will be omitted, and portions different from the sixth embodiment will be described below.

The storage means 107 temporarily stores at least a part of the signal section to be processed this time. When there are a plurality of maximum signal processing circuit groups whose outputs match each other, the circuit selection means 105 newly selects another signal processing circuit which is not currently performing the processing operation. The signal distribution unit 101 supplies the signal section to be processed this time stored in the storage unit 107 to the signal processing circuit newly selected by the circuit selection unit 105.

The comparison means 103 adds the output of the signal processing circuit that has processed the signal section stored in the storage means 107 to the current comparison target, and compares the output of the signal processing circuit again. The normal circuit detecting means 104 includes the comparing means 10
As a result of the re-comparison by 3, if the largest number of signal processing circuit groups whose outputs match each other includes the newly selected signal processing circuit, the newly selected signal processing circuit is operating normally. It is detected as a signal processing circuit.

Next, Embodiment 1 configured as described above
The operation of the signal processing device at 0 will be described with reference to FIG. For the sake of simplicity, in the present embodiment, the circuit selection means 105 selects only two arbitrary signal processing circuits that are not performing a processing operation, distributes all parts of each signal section to one of them, and , Only a part of each signal section is distributed.

First signal section S1 of input signal Si
, The corresponding portions of the processing results R1a and PR1b of the signal processing circuits 102A1 and 102A4 selected by the circuit selection means 105 match, and only one of the groups consisting of these signal processing circuits 102A1 and 102A4 Is the maximum number of signal processing circuit groups, and the signal processing circuit 102A1 included in the maximum number of signal processing circuit groups and processing all portions of the signal section S1 is normally operated by the normal circuit detection unit 104. Detected as a circuit.

Regarding the processing of the signal section S2, the processing result R2a of the signal processing circuit 102A2 does not match the processing result PR2b of the signal processing circuit 102A4, and as a result, the group including the signal processing circuit 102A2 and the signal processing circuit 102A4 Are the maximum number of signal processing circuit groups. In this case, the signal distribution unit 101 replaces the signal section S1 stored in the storage unit 107 with the newly selected signal processing circuit 102.
A5, and the processing result R2
a and the processing result PR2b are compared again with the processing result R2c. At this time, as shown in FIG. 21, when the processing result PR2b and the processing result R2c match, only the group including the signal processing circuits 102A4 and 102A5 becomes the maximum majority signal processing group, and the newly selected signal processing group. The processing circuit 102A5 is detected as a normally operating signal processing circuit. If the signal processing circuit 102A5 is not included in the maximum number of signal processing circuit groups as a result of the re-comparison, a new signal processing circuit may be selected again and the same operation as described above may be repeated.

According to the tenth embodiment, the following effects can be obtained in addition to the effects of the sixth embodiment.
That is, in the tenth embodiment, as long as the newly selected signal processing circuit is included in the maximum number of processing circuit groups as a result of the re-comparison, the newly selected signal processing circuit is automatically and normally set. It can be detected as an operating signal processing circuit, and even when there are a plurality of maximum signal processing circuit groups, a normal signal processing circuit can be easily detected. Also, in the case where the maximum number of signal processing circuit groups exist, the number of signal processing circuits for processing all parts of each signal section increases, so that all of the signal sections are The number of signal processing circuits for processing the minute can be set small.

In the first to tenth embodiments, the number of signal processing circuits selected by the circuit selection means is two or three for the sake of simplicity, but it is needless to say that the number of signal processing circuits is limited to these. There is no problem even if the number is more than this. In the above-described embodiment, the input signal Si is only one signal. However, the present invention is not limited to this. By inputting a plurality of input signals to the signal distribution unit and distributing them to an empty signal processing circuit, Each input signal may be processed in parallel. The ratio of the signal processing circuit for distributing the entire part of each signal section of the input signal to the signal processing circuit for distributing the part is not limited to that of the above embodiment, and can be set freely according to the purpose. it can.

Further, in the first to tenth embodiments, the signal processing circuit may be selected so that each signal processing circuit of the processing unit is used substantially equally through the processing of the entire input signal Si. . In this case, since each signal processing circuit is used almost equally, it is possible to prevent a problem that a specific signal processing circuit becomes hot and easily breaks down.

The signal processing devices of the first to tenth embodiments can be used as a radar signal processing device. In this case, each signal section represents a signal in a section corresponding to one or a plurality of range bins. It is good to do so. Further, each signal section may represent a signal in a section corresponding to a plurality of range bins. In this case, the above-described part of the signal section may represent a signal in a section corresponding to one range bin. Good.

[0119]

According to the present invention, any signal processing circuit can be used at the time of processing each signal section of an input signal in a signal processing device for performing a failure determination. Compared with the conventional signal processing device to which the circuit was assigned, in other words,
Compared to a signal processing device automatically assigned to a specific group consisting of a plurality of signal processing circuits, the signal processing circuits can be shared, the number of signal processing circuits can be reduced, and as a result, The circuit scale can be reduced in size. Further, the reliability of the failure determination can be easily changed only by changing the number of selection circuits by the circuit selection means without changing the device configuration. Therefore,
Even when the required specification of reliability changes, it is possible to flexibly cope with the same number of signal processing circuits.

According to the present invention, only a part of the signal section to be processed this time is supplied to at least one of the selected signal processing circuits. The processing time of the unit can be partially reduced. As a result, it is possible to continuously select a signal processing circuit whose processing time is reduced, and the sharing of the signal processing circuit can be further enhanced.

Further, according to the present invention, when there is at least one signal processing circuit whose processing result does not match, a faulty signal processing circuit exists in the signal processing circuits that have processed the signal section to be processed this time. Because it has been determined that
Failure determination can be made easily.

Further, according to the present invention, since it is determined that a signal processing circuit which is not included in the maximum majority signal processing circuit group whose processing results match each other is faulty, the faulty signal processing circuit is specified. be able to. Further, according to the present invention, when there are a plurality of maximum majority signal processing groups whose processing results match each other, the processing results of another newly selected signal processing circuit are added, and the processing results are re-compared. Even if it is not possible to identify the faulty signal processing circuit in the first majority decision because the failure judgment is made from the re-comparison result, it is necessary to reliably identify the faulty signal processing circuit by re-comparison. Can be.

Further, according to the present invention, when there are a plurality of maximum signal processing circuit groups whose outputs match each other, the newly selected signal processing circuit includes the remaining part following the part of the signal section to be processed this time. Since at least a part of the signal processing circuit is supplied, a new comparison is performed, and a failure is determined based on the result of the new comparison, even if the signal processing circuit that has failed cannot be identified by the first majority decision, By comparing the processing results of different parts of the signal section, the faulty signal processing circuit can be reliably identified.

Furthermore, according to the present invention, at least one signal processing circuit is fixedly selected as long as no processing result mismatch occurs. May be regarded as a reference signal processing circuit operating at a higher speed, and the reliability of failure detection is further improved as compared with other embodiments in which all selected circuits are regarded as having the same probability of failure. be able to. Further, the presence of the reference signal processing circuit makes it possible to easily identify the faulty signal processing circuit without using a majority decision or the like.

The result of the determination by the failure determining means is
Since the output is output in association with the processing result of the input signal, the processing result of the signal processing circuit that may have failed, that is, the processing result that may be incorrect, is deleted in the post-processing step of the processing device. And other appropriate measures can be taken.

Further, according to the present invention, the signal processing circuit determined to be faulty is not selected for the processing of the next and subsequent signal sections. Can be eliminated.

Further, according to the present invention, in a signal processing device for detecting a normal signal processing circuit, any signal processing circuit can be used when processing each signal section of an input signal. A signal processing circuit is compared with a conventional signal processing device to which a specific signal processing circuit is assigned, in other words, compared to a signal processing device which is automatically assigned to a specific group including a plurality of signal processing circuits. Can be shared, the number of signal processing circuits can be reduced, and as a result, the circuit scale can be reduced. Furthermore, the reliability of normal signal processing circuit detection can be easily changed without changing the device configuration only by changing the number of selection circuits by the circuit selection means. Therefore, even if the required specification of reliability changes, it is possible to flexibly cope with the same number of signal processing circuits.

Further, according to the present invention, any one of the signal processing circuits in the maximum number of signal processing circuit groups whose processing results match each other is detected as a normally operating signal processing circuit. The configuration and operation of the detecting means can be simplified.

Further, according to the present invention, when there are a plurality of maximum signal processing groups whose processing results match each other, the processing results of another signal processing circuit newly selected are added, and
Since the processing result is re-compared and the signal processing circuit that is operating normally is detected from the re-comparison result, even if the circuit cannot be detected by the first majority decision, the normal signal processing circuit is re-compared. Can be reliably detected.

Further, according to the present invention, only a part of the signal section to be processed this time is supplied to at least one of the selected signal processing circuits.
The processing time of a part of the selected signal processing circuit can be partially reduced. As a result, it is possible to continuously select a signal processing circuit whose processing time is reduced, and the sharing of the signal processing circuit can be further enhanced.

Further, according to the present invention, if no signal processing circuits which have processed all the portions of the signal section to be processed this time are included in the maximum majority signal processing circuit group having the same processing result, the current processing is performed. Any one of the signal processing circuits supplied and processed only a part of the signal section to be included in the maximum number of signal processing circuit groups,
The remaining part of the signal section to be processed this time is supplied, and this signal processing circuit is detected as a normally operating signal processing circuit. Therefore, the number of signal processing circuits for processing all parts of the signal section can be reduced,
As a result, even with a small number of signal processing circuits, the number of signal processing circuits that are not performing operation processing can be increased, and the signal processing circuits can be more effectively utilized.

Further, according to the present invention, when the signal processing circuits that have processed all the portions of the signal section to be processed this time are included in the maximum majority signal processing circuit group whose processing results match each other, the maximum majority signal processing circuit group , One of the signal processing circuits that has processed all of the signal sections to be processed this time is detected as a normally operating signal processing circuit. Therefore, no matter how many signal processing circuits that process only a part of the signal section are included in the signal processing circuit group, the signal processing circuit that processes the entire signal section is processed in the signal processing circuit group. If at least one circuit is included, the signal processing circuit can be detected as a normally operating signal processing circuit.

Further, according to the present invention, when there are a plurality of maximum signal processing circuit groups whose processing results match each other, the signal section to be processed this time stored in the newly selected signal processing circuit is stored. The processing result is added to the current comparison target and re-comparison is performed. As a result of the re-comparison, the newly selected signal processing circuit is included in the maximum majority signal processing circuit group having the same processing result. In this case, the newly selected signal processing circuit is detected as a normally operating signal processing circuit. Therefore, as long as the newly selected signal processing circuit is included in the maximum number of processing circuit groups as a result of the re-comparison, the newly selected signal processing circuit automatically operates normally. It can be detected as a processing circuit, and even when there are a plurality of maximum signal processing circuit groups, a normal signal processing circuit can be easily detected.

Further, according to the present invention, when selecting a signal processing circuit, all of the signal processing circuits that are not currently being processed are selected, so that all of the signal processing circuits are effectively used. can do.

Further, according to the present invention, a signal processing circuit is selected such that a plurality of signal processing circuits are used substantially equally throughout the processing of the entire input signal. This makes it possible to prevent problems such as failure.

[Brief description of the drawings]

FIG. 1 is a block diagram showing Embodiment 1 of a signal processing device according to the present invention.

FIG. 2 is a timing chart showing an operation of the signal processing device shown in FIG.

FIG. 3 is a block diagram showing Embodiment 2 of a signal processing device according to the present invention.

FIG. 4 is a timing chart illustrating an operation of the signal processing device illustrated in FIG. 3;

FIG. 5 is a block diagram showing Embodiment 3 of a signal processing device according to the present invention.

6 is a timing chart showing an operation of the signal processing device shown in FIG.

FIG. 7 is a block diagram showing Embodiment 4 of a signal processing device according to the present invention.

FIG. 8 is a timing chart showing an operation of the signal processing device shown in FIG. 7;

9 is another timing chart showing the operation of the signal processing device shown in FIG.

FIG. 10 is a block diagram showing Embodiment 5 of a signal processing device according to the present invention.

11 is a timing chart showing an operation of the signal processing device shown in FIG.

FIG. 12 is a block diagram showing Embodiment 6 of a signal processing device according to the present invention.

13 is a timing chart showing an operation of the signal processing device shown in FIG.

FIG. 14 is a block diagram showing Embodiment 7 of a signal processing device according to the present invention.

15 is a timing chart showing an operation of the signal processing device shown in FIG.

FIG. 16 is a block diagram showing Embodiment 8 of a signal processing device according to the present invention.

17 is a timing chart showing an operation of the signal processing device shown in FIG.

FIG. 18 is a block diagram showing Embodiment 9 of a signal processing device according to the present invention.

19 is a timing chart showing an operation of the signal processing device shown in FIG.

FIG. 20 is a block diagram showing Embodiment 10 of a signal processing device according to the present invention.

21 is a timing chart showing an operation of the signal processing device shown in FIG.

FIG. 22 is a block diagram showing a conventional signal processing device.

FIG. 23 is a timing chart showing the operation of the signal processing device shown in FIG.

[Explanation of symbols]

11, 21, 31, 41, 51, 61, 71, 81, 9
1, 101 signal distribution means 12, 22, 32, 42, 52, 62, 72, 82, 9
2, 102 processing circuit unit 13, 23, 33, 43, 53, 63, 73, 83, 9
3, 103 comparing means 14, 24, 34, 44, 54 failure determining means 15, 25, 35, 45, 55, 65, 75, 85, 9
5, 105 circuit selecting means 16, 26, 36, 46, 56, 66, 76, 86, 9
6, 106 output selection means 37, 77, 107 storage means 64, 74, 84, 94, 104 normal circuit detection means

Claims (18)

[Claims] A signal processing apparatus for processing an input signal composed of a plurality of signal sections arranged in time series and outputting a processing result of each signal section as an output signal, comprising: a plurality of signal processing circuits having the same processing function; Each time each signal section of the input signal is processed, a plurality of signal processing circuits including at least one arbitrary signal processing circuit are selected from among the plurality of signal processing circuits that are not currently being processed. Circuit selecting means; signal distributing means for distributing a signal section to be processed this time to the signal processing circuit selected by the circuit selecting means; processing of the signal processing circuit processing the signal section distributed by the signal distributing means Comparing means for comparing the result; and whether there is a faulty signal processing circuit among the signal processing circuits selected by the circuit selecting means. The signal processing apparatus being characterized in that and a failure determination means for determining based on a result of comparison by the comparing means. 2. The signal distribution means supplies only a part of a signal section to be processed this time to at least one of the signal processing circuits selected by the line selection means, 3. The method according to claim 2, wherein when comparing outputs of the circuits, processing results corresponding to the part of the signal section to be processed this time are compared.
A signal processing device according to claim 1. 3. The signal processing circuit which has processed a signal section to be processed at this time, if the result of the comparison by the comparing means indicates that there is at least one signal processing circuit whose processing result does not match. 3. The signal processing device according to claim 1, wherein it is determined that a failed signal processing circuit exists. 4. The failure determining means determines, as a result of the comparison by the comparing means, that a signal processing circuit which is not included in a maximum majority signal processing circuit group whose processing results match each other has failed. The signal processing device according to claim 3. 5. A storage means for temporarily storing at least said part of a signal section to be processed this time, wherein said circuit selecting means comprises:
When there are a plurality of maximum number signal processing groups whose processing results match each other, another signal processing circuit that is not currently performing the processing operation is newly selected, and the signal distribution unit selects the signal processing newly selected by the circuit selection unit. Supplying only a part or all of the signal section to be processed this time stored in the storage means to the circuit; and the comparing means processing the signal section stored in the storage means by a signal processing circuit. The result is added to the current comparison object, and the processing result of the signal processing circuit is compared again. 3. The signal processing device according to claim 2, wherein it is determined that a signal processing circuit not included in the signal processing circuit has failed. 6. The circuit selecting means, when the result of the comparison by the comparing means is that there are a plurality of maximum number signal processing circuit groups whose outputs match each other, newly selects another signal processing circuit which is not currently processing. The signal distribution means, at least a part of the remaining part following the part of the signal section to be processed this time,
Supplying the signal to the newly selected signal processing circuit, wherein the comparing means performs processing on the newly selected signal processing circuit;
A new comparison is made with the corresponding part of the processing result of the signal processing circuit that has processed the entire signal section of this time, and the failure determination means determines the maximum number of processing results that match each other as a result of the new comparison by the comparison means. If there are still a plurality of signal processing circuit groups, the signal processing circuits included in the largest number of signal processing circuit groups not including the newly selected signal processing circuit among the signal processing circuits that have processed the signal section to be processed this time. Judge that the circuit is broken,
As a result of the new comparison by the comparing means, if the maximum number of signal processing circuit groups whose processing results match each other becomes one, the new comparison among the signal processing circuits that have processed the signal section to be processed this time is performed. 3. The signal processing device according to claim 2, wherein it is determined that a signal processing circuit that is not included in the maximum majority signal processing circuit group obtained by the step has failed. 7. The line selection means fixedly selects at least one signal processing circuit until the failure determination means determines that a failure has occurred. As a result of the comparison,
If the fixedly selected signal processing circuits are not consecutively included in the maximum number of signal processing circuit groups whose processing results match each other, the fixedly selected signal processing circuit is considered to have failed. The signal processing device according to claim 2, wherein the determination is performed. 8. The signal processing apparatus according to claim 1, wherein a result of the determination by the failure determination unit is output in association with a processing result of the input signal. 9. The apparatus according to claim 1, wherein said circuit selecting means does not select a signal processing circuit determined to be faulty by said fault determining means for processing of a signal section after the next time. 8. The signal processing device according to any one of 8 above. 10. A plurality of signal processing circuits having the same processing function in a signal processing device for processing input signals composed of a plurality of signal sections arranged in a time series in parallel and outputting a processing result of each signal section as an output signal. And selecting a plurality of signal processing circuits including at least one arbitrary signal processing circuit from among the plurality of signal processing circuits that are not currently being processed, each time each signal section of the input signal is processed. Circuit selecting means for performing signal processing, signal distributing means for distributing a signal section to be processed this time to a signal processing circuit selected by the circuit selecting means, and signal processing performed by inputting and processing the signal section distributed by the signal distributing means. Comparing means for comparing the processing results of the circuit; and a signal selected by the circuit selecting means based on a result of the comparison by the comparing means. Normal circuit detecting means for detecting one signal processing circuit operating normally among the processing circuits; and output selecting means for outputting, as the output signal, a processing result of the signal processing circuit detected by the normal circuit detecting means. A signal processing device comprising: 11. The normal circuit detecting means normally operates one of the signal processing circuits in the maximum number of signal processing circuit groups having the same processing result based on the comparison result by the comparing means. The signal processing device according to claim 10, wherein the signal processing circuit detects the signal. 12. A memory means for temporarily storing a signal section to be processed this time, wherein said circuit selecting means determines whether or not there is a maximum number of signal processing circuit groups having the same output from each other and is not currently performing a processing operation. The signal distribution circuit supplies the signal section to be processed this time stored in the storage device to the signal processing circuit newly selected by the circuit selection device, The comparing unit adds the processing result of the signal processing circuit that has processed the signal section stored in the storage unit to the current comparison target, compares the processing result of the signal processing circuit again, and the normal circuit detecting unit includes: On the basis of the result of the re-comparison by the comparing means, one of the signal processing circuits included in the maximum number of signal processing circuit groups whose processing results match each other is normally 12. The signal processing device according to claim 11, wherein the signal is detected as a signal processing circuit that operates. 13. The signal distributing means includes: at least one of the signal processing circuits selected by the line selecting means,
Supplying only a part of the signal section to be processed this time, wherein the comparing means compares processing results corresponding to the part of the signal section to be processed this time when comparing outputs of the respective signal processing circuits. Claim 1
0. The signal processing device according to 0. 14. The signal distribution means as a result of the comparison by said comparison means, the signal processing circuits which have processed all the parts of the signal section to be processed this time have at least one signal processing circuit group in the maximum number of signal processing circuit groups whose processing results match each other. If not,
The remaining part of the signal section to be processed this time is supplied to any one of the signal processing circuits that have been supplied and processed only the part of the signal section to be processed this time and included in the maximum number signal processing circuit group, The normal circuit detection means is a signal processing circuit that is supplied with the part of the signal section to be processed this time and subsequently supplied with the remaining part and processes all parts of the signal section.
14. The signal processing device according to claim 13, wherein the signal is detected as a normally operating signal processing circuit. 15. The normal circuit detecting means includes, as a result of the comparison by the comparing means, the signal processing circuits which have processed all portions of the signal section to be processed this time are included in a maximum majority signal processing circuit group whose processing results match each other. In this case, one of the signal processing circuits included in the maximum number of signal processing circuit groups and having processed all the signal sections to be processed this time is detected as a normally operating signal processing circuit. 14. The signal processing device according to claim 13, wherein 16. A storage means for temporarily storing a signal section to be processed this time, wherein said circuit selection means is not currently processing when there are a plurality of maximum signal processing circuit groups whose processing results match each other. Newly selecting another signal processing circuit, the signal distribution means supplies the signal section to be processed this time stored in the storage means to the signal processing circuit newly selected by the circuit selection means, The comparison means adds the processing result of the signal processing circuit that has processed the signal section stored in the storage means to the current comparison target, compares the processing result of the signal processing circuit again, and the normal circuit detection means In the case where the result of the re-comparison by the comparing means indicates that the newly selected signal processing circuit is included in the maximum majority signal processing circuit group whose processing result matches each other, 14. The signal processing device according to claim 13, wherein in the case, the newly selected signal processing circuit is detected as a normally operating signal processing circuit. 17. The signal processing apparatus according to claim 1, wherein said circuit selecting means selects all signal processing circuits from among the signal processing circuits which are not currently being processed when selecting a signal processing circuit. 17. The signal processing device according to any one of 10 to 16. 18. The apparatus according to claim 1, wherein said circuit selection means selects a signal processing circuit so that said plurality of signal processing circuits are used substantially equally through processing of said entire input signal. The signal processing device according to any one of 6 and 10 to 16.