JP3683502B2 - Remote control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a remote control device that can remotely control various devices such as a television and a video by voice.
[0002]
[Prior art]
  As such a remote control device, for example, a remote control device described in claim 1 of Japanese Patent Laid-Open No. 05-219575,User'svoiceIs recognized as one keyword, and the keyword isCompatible with remote control signals ofTheApart from thatCorresponds to the discrimination resultRemote control signalSendTrustTo doThere is.
[0003]
  Moreover, like the remote control device described in claim 4 of the publicationThe user'sVoice firstWith keywordsWith the second keywordTwo keywordsSo that you can recognizeThe secondWhen recognizing one keyword, multiple deviceshomeDetermine which device is compatible withThe secondWhen recognizing the second keyword,SaidDetermine which device operation is supportedAnd send a remote control signal corresponding to the discrimination result.There are also things.
[0004]
[Problems to be solved by the invention]
  However, among the above-described conventional remote control devices, the remote control device described in claim 4 of Japanese Patent Laid-Open No. 05-219575 is used.In that case, the user'sVoiceTwoBecause it is designed to be divided into keywords,Compared to recognizing user's voice as one keyword, A large number of keywordsEnd,Corresponding to those keywordsTo memorize all recognition target wordsHighNeed a large-capacity storage meansIs, Manufacturing costs will be highfearwas there.In addition, there is a possibility that the voice is erroneously recognized by the remote control device.
[0005]
  The present invention has been made paying attention to such unsolved problems of the prior art,Can reduce misrecognition of voice by remote control deviceIt is an object to provide a remote control device.
[0007]
[Means for Solving the Problems]
  In order to solve the above-described problem, a remote control device according to a first aspect of the present invention provides a recognition target word included in a voice uttered by a user.By collating with recognition target words registered in advanceA voice recognition means for recognition, a transmission means for transmitting a remote control signal corresponding to the recognition target word recognized by the voice recognition means, a user identification means for identifying a user, and the user identification means. Usage frequency calculation means for calculating the usage frequency of the recognition target word based on the recognition result of the voice recognition means for each user, the voice recognition means,PreviousUsers identified by the user identification meansIf the recognition target word issued from is a recognition target word for instructing an action after the recognition target word for the operation target, the recognition target word for instructing the action obtained by the use frequency calculation means is recognized, and the transmission means Transmits a remote control signal corresponding to the recognition target word indicating the operation.It is characterized by the fact that it is adapted.
  A remote control device according to a second aspect of the present invention is the remote control device according to the first aspect, wherein the recognition target word indicates a desired operation target from a plurality of operation targets and the operations of the plurality of operation targets. The recognition target word for instructing the operations of the plurality of operation objects is stored separately from the instruction to be instructed, and the recognition target word for instructing the operation common to the plurality of operation objects and the operation specific to the plurality of operation objects. A storage unit that stores the recognition target words separately, and the voice recognition unit recognizes a recognition target word included in a voice uttered by a user based on the storage unit; and the transmission unit includes: A remote control signal corresponding to a combination of a recognition target word indicating a desired operation target recognized by the voice recognition means and a recognition target word specifying the operation of the plurality of operation targets is transmitted. And it is characterized in and.
  According to a third aspect of the present invention, in the remote control device according to the first or second aspect, information display means for displaying information relating to a remote control operation that can be instructed by a user, and a remote control operation displayed on the information display means And an operation instruction switch for instructing the user to perform a desired remote control operation based on the information on the information.
[0008]
  According to a fourth aspect of the present invention, in the remote control device according to any one of the first to third aspects, an operation state display unit that displays an operation state of the voice recognition unit is provided.Is.
[0014]
  Therefore,Claim1In the remote control device according to the present invention, the recognition target word included in the voice uttered from the user is recognized based on the frequency of use of the recognition target word of the user, that is, the voice uttered from the user is recognized. Based on the history of the results, information such as which recognition target words are frequently used for each user is statistically processed, and the recognition target words included in the speech uttered by the user are given to the user. Since recognition is performed based on the frequency of use of the recognition target words that have been statistically processed correspondingly, erroneous recognition of speech by the remote control device can be reduced.
[0015]
  Further, based on the recognition result history, information such as which operation is frequently instructed after the user has instructed an arbitrary operation target is statistically processed, and when the operation target is instructed A remote control signal for performing an operation instructed at a high frequency may be transmitted together, and in this way, the user's favorite state can be immediately reproduced.
In the remote control device according to the second aspect of the present invention, the recognition target words are stored separately for those indicating a desired operation object from among a plurality of operation objects and those indicating the operation of the plurality of operation objects. And recognizing the recognition target words for instructing the operations of the plurality of operation targets separately into recognition target words commonly used for the plurality of operation targets and recognition target words used individually for the plurality of operation targets. Therefore, for example, only recognition target words that are commonly used for all operation targets such as “switch on” and “switch off”, and only some operation targets such as “fast forward” and “rewind” It is not necessary to store commonly used recognition target words and the like in the storage means, and a recognition target word for recognizing a voice instructing the operation of the operation target is stored for each operation target. Compared to the method It is possible to reduce the recognition target word to be is stored in the unit, it is possible to reduce the storage capacity of the storage means required.
The recognition target words stored in the storage means may be stored in advance at the time of manufacture, or may be stored in the user at the time of use. If the recognition target word is stored at the time of use, the user may utter the recognition target word and store it. The input target word such as a keyboard may be used to input the recognition target word. You may make it memorize | store.
In addition, the order in which the speech recognition means recognizes the recognition target words from the speech uttered by the user is the recognition target word indicating the desired operation target or the recognition target word indicating the operation target operation. However, the recognition target word is recognized in advance, for example, by first recognizing the recognition target word indicating the operation target, and then recognizing the recognition target word indicating the operation of the operation target. If the order to be determined is determined, the voice recognition means, for example, only refers to the recognition target word indicating the operation target stored in the storage means when a voice is issued to instruct the operation target from the user. In addition, when a voice is issued to instruct the operation of the operation target from the user, it is only necessary to refer to the recognition target word instructing the operation of the operation target stored in the storage unit. In, it can be recognized word for reference when recognizing voice generated by a user fewer, to reduce erroneous recognition of voice instructing the remote control operation.
In the remote control device as described above, a means for reading or rewriting the voice, the remote control signal, etc. stored in the storage means may be provided. When the transmission means cannot be used due to a failure or the like, the recognition target word stored in the storage means of the remote control device used is read and the storage means of the new remote control device is rewritten to use the remote control device. It is preferable because a new remote control can be used immediately in the same way as. As the storage means, for example, a flash memory or the like directly connected to the remote control device may be used, or an external storage provided in a remote place and indirectly connected to the remote control device via a telephone line or the like. An apparatus may be used.
In addition, since it is used away from the user's hand, in order to ensure reliable operation, the user can check various situations of the remote control device such as whether the voice can be recognized by the voice recognition means. It is preferable to include a situation notifying unit for notifying the user.
The situation notification means may be any means as long as it can notify various situations of the remote control device. For example, a speaker or the like for notifying the user of the sound when the voice recognition means recognizes the voice. Is mentioned.
In addition, for visually impaired persons who are visually impaired, the operation procedure may be guided by voice, so that anyone can easily handle the remote control device, and the operability of the remote control device is improved. Can be improved.
[0016]
Further, based on the recognition result history, the state before the latest remote control signal is transmitted is restored.So that users can do thatEven if an incorrect recognition target word is recognized from the voice and a remote control signal that the user did not expect is transmitted, the operation target can be immediately returned to the original state.
Further, the remote control signal transmitted immediately before is stored as a history of the recognition target word, and when the voice recognition means recognizes a predetermined recognition target word, the stored remote control signal is again transmitted to the transmission means. To sendYou can do that,, You can easily perform operations such as lighting that changes step by step to the same state with the same remote control signal,Remote control deviceOperability is improved.
[0017]
In the remote control device according to the third aspect of the present invention, the information display means displays information related to the remote control operation that can be instructed by the user, and is used based on the information related to the remote control operation displayed on the information display means. An operation instruction switch for instructing the user to perform a desired remote control operation.For example, if a switch or the like for manually instructing the remote control operation is used as the operation instruction switch, the physical condition is poor due to a cold or the like. When it is difficult to take out, the remote control device of the present invention can be used as an ordinary remote control device. It is also effective in cases where the body organ is damaged and the user is unable to speak while wearing a respiratory device, or when the user does not want to instruct the remote control operation simply by voice.
[0018]
The operation instruction switch may be any switch as long as it allows the user to instruct a desired remote control operation. For example, a push button switch or a breathing switch operated with breath , Point touch switches, pin touch switches, breath microphone switches and the like.
In the remote control device according to the fourth aspect of the present invention, the remote control device further includes an operation state display unit that displays an operation state of the voice recognition unit.OperabilityofForUpExpectationTo doit can.
[0019]
Operating state display meansWhen using a light emitting diode asI want to operate the remote controlIndicates the operation targetRecognitionRecognized wordsShiLight green whenLet, Waiting for input of voice that instructs the operation of the operation targetBecameInform the user thatAfterIn addition, a voice that indicates the operation of the operation target is received.WhenLight redLet,ThatWhen the recognition target word is recognized from the received voiceRedcolorInFlashingMakeetc,Voice recognition meansWhat is necessary is just to change the light emission pattern of a light emitting diode according to these various states.
[0020]
Also, a plurality of light emitting diodes are arranged in a line, and when the recognition target word is recognized from the voice that indicates the operation target to be operated by the remote controller, all the light emitting diodes illuminate in green to instruct the operation of the operation target. The user is informed that it has entered a state of waiting for voice input, and as time elapses, the light emitting diodes are turned off one by one, and finally all the light emitting diodes are turned off. You may make it alert | report to a user that it entered into the state which waits for the input of the audio | voice to instruct | indicate.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory diagram for explaining an example of use of an embodiment of a remote control device according to the present invention.
As shown in FIG. 1, the remote control device 1 in the present embodiment is on a desk arranged along a wall facing a wall on which devices such as a television 2, a video 3, and an air conditioner 4 that are operation targets are installed. Placed on.
[0022]
Here, the remote control device 1 stores in advance an infrared remote control signal of a device such as a television 2, a video 3, an air conditioner 4, etc., a user password, and a recognition target word for instructing the device to operate. To do.
FIG. 2 is a flowchart showing an outline of processing performed in an embodiment of the remote control device according to the present invention.
[0023]
As shown in FIG. 2, when the user utters a voice such as “password 1”, for example, as shown in FIG. 3, the recognition target words such as “password 1”, “password 2”, and “password 3” are registered in advance. Based on this, the remote control device 1 recognizes the recognition target word from the voice of “password 1” (step 201), and waits again for the recognition target word to be uttered when the recognition target word is not recognized. In this state (step 202 “No”), when the recognition target word is recognized from the voice, the user who has issued the voice is identified, and then the recognition target is designated to indicate the device to be operated by the remote controller. A state of waiting for the utterance of the word is entered (step 202 “Yes”). Here, the term “password 1” or the like is a password registered in advance in the remote control device 1 by each user in order to start remote control operation for each device.
[0024]
Next, when the user utters a sound such as “TV”, for example, as shown in FIG. 4, a recognition target word indicating a pre-registered device and a frequency of use of the recognition target word by the specified user. With reference to the above, the score of the collation calculation of the recognition target words having a significant difference in the use frequency is weighted, and the remote control device 1 recognizes the recognition target word “TV” from the voice. Here, the term “TV” is a recognition target word that is set in advance in the remote control device 1 by the user in order to start the remote control operation of the TV 2.
[0025]
In this way, by only recognizing the sound for instructing the operation of the television 2, the sound for instructing the operation of the television 2 included in the sound uttered by the user is instructed for the operation of another device. The recognition rate is improved without being erroneously recognized as speech.
When the user continuously utters “switch-on”, the recognition target word for instructing the operation of the television 2 registered in advance and the use frequency of the recognition target word by the specified user, (Switch s1 “ON”) is weighted, and the remote calculation device 1 recognizes the recognition target word “switch on” from the voice by weighting the score of the collation calculation of the recognition target word having a significant difference in the frequency of use. (Step 203), and when the recognition target word is not recognized from the voice, it waits again for the input of the recognition target word (Step 204 "No", 206). When the recognition target word is recognized (step 204 “Yes”), a remote control signal for turning on the power of the television 2 is transmitted (step 20). ).
[0026]
In this way, by referring to the usage frequency of the recognition target word by the user and weighting the score of the collation calculation of the recognition target word having a significant difference in the usage frequency, the recognition target word having a high usage frequency is more It becomes easier to be recognized and the recognition rate is improved.
When receiving the remote control signal, the television 2 turns on its own power as in the case where the dedicated remote control device is operated. Here, the term “switch-on” is a recognition target word that is set in advance in the remote control device 1 by the user in order to instruct the operation of the television 2.
[0027]
The same applies to the video 3 and the air conditioner 4, and if the user utters “video” or “air conditioner”, as shown in FIG. The recognition target word is recognized from the voice based on the target word, and the recognition target word included in the voice uttered by the user is continuously recognized based on the recognition target word instructing the operation of the television 2. (One of the switches s1 to sn is “ON”), and enters a state of waiting for the utterance of the recognition target word instructing the operation of those devices, and thereafter the device operation such as “switch on” is performed. When the designated recognition target word is uttered, the corresponding remote control operation is executed.
[0028]
If the password is recognized for 8 seconds or more, or if the recognition target word is recognized 4 times or more from the voice instructing the operation of the device (step 206 “No”), the password recognition ( The above procedure is repeated from step 201), but within 8 seconds after the password is recognized, the number of times the recognition target word is recognized from the voice instructing the operation of the device is 4 times or less. In this case (step 206 “Yes”), the above procedure is repeated from the point where the recognition target word is recognized from the voice instructing the device to be operated by the remote control (step 203).
[0029]
FIG. 5 is a perspective view when one embodiment of the remote control device according to the present invention is viewed from the front side.
As shown in FIG. 5, a voice transmission / reception unit 5 is provided in the lower part on the front side of the remote control device 1. Inside the voice transmission / reception unit 5, a microphone for receiving a user's voice and a response by voice are received. A speaker is provided.
[0030]
Further, an LCD panel 6a for displaying a remote control operation that can be instructed by the user and an external switch 6b for instructing the user to perform a desired remote control operation are provided side by side on the upper side of the front side. If the physical condition is poor and it is difficult for the user to speak, the user can manually instruct the desired remote control operation from the external switch 6b among the remote control operations displayed on the LCD panel 6a. It is like that.
[0031]
Specifically, as shown in FIG. 6A, the LCD panel 6a displays a list of names of devices to be operated in a matrix, and individually surrounds the names of the devices with a rectangular frame, An image with an arrow extending rightward from the right end of the frame line is displayed. In the initial state, the frame line located at the upper left is displayed in the form of a push button, and each time the user presses the external switch 6b, the push button display is moved to the right frame line. It is like that. For example, as shown in FIG. 6A, the name of “TV” is arranged at the upper left, and the name of “video” is arranged to the right of the name, and the external switch 6b is pressed once. Then, a frame that surrounds the name of “video” is displayed like a push button.
[0032]
When the external switch 6b is continuously pressed twice at short intervals, as shown in FIG. 6B, a word (recording, playing, stopping, etc.) instructing the operation of the device displayed as a push button. ), Icons, and the like are displayed in a matrix in the same manner as the device names. In the initial state, as in the case of selecting the name of the device, the frame line located at the upper left is displayed in the form of a push button, and when the user presses the external switch 6b once, the frame on the right one is displayed. When the push-button display of the line is moved and pressed continuously twice at short intervals, a remote control operation corresponding to an icon or the like displayed in the push-button shape is executed. In other devices, remote control operations are executed in the same procedure.
[0033]
Note that the method of causing the user to select the device name and the like is not limited to the method of selecting the number of times the external switch 6b is pressed, and may be selected based on the time the external switch 6b is pressed. Often, when the user presses the external switch 6b for a short time, the push button display is moved to the right border line, and when the user presses the external switch 6b for a long time, the remote control operation surrounded by the push button display border line is executed. It may be.
[0034]
Examples of the external switch 6b include a push button switch, a breathing switch operated by breathing, a point touch switch, a pin touch switch, and a breath microphone switch.
The LCD panel 6a is configured to display the same display as when the user manually instructs the remote control operation from the external switch 6b when the user instructs the remote control operation by voice.
[0035]
Further, a display unit 7 for displaying the operation state of the device and the like is provided at the center on the front side. The display unit 7 includes a plurality of light emitting diodes arranged in a horizontal row, and the light emitting diodes arranged at the left end and the right end are provided apart from the other light emitting diodes.
The light-emitting diode placed at the left end glows green when the recognition target word is recognized from the voice that indicates the device you want to operate by remote control, and has entered the state of waiting for the input of the voice that indicates the operation of the operation target To the user, and further, when a voice instructing the operation of the operation target is received, it glows red, and the user is informed that the recognition target word has been recognized from the received voice. It has become.
[0036]
The light-emitting diode arranged at the right end glows red when it fails to recognize the recognition target word from the received voice, and reenters the state of waiting for the input of the voice instructing the operation of the operation target. Is notified to the user.
A plurality of light emitting diodes arranged in the center, when the recognition target word is recognized from the voice that indicates the device that you want to operate by remote control, all the light emitting diodes glow orange and the voice input that instructs the operation of that device The user is informed that the device has entered a state of waiting for the light, and as the time elapses, the light emitting diodes are changed to green one by one. The user is informed that he / she has entered a state of waiting for input of a voice to be instructed.
[0037]
As described above, it is expected that the operability of the remote control device 1 is further improved by causing the light emitting diode of the display unit 7 to emit light when the user instructs the remote control operation by voice.
A remote control signal transmission unit 8 and a remote control signal reception unit 9 are provided at the upper end of the remote control device 1, and an infrared light emitting diode is provided inside the remote control signal transmission unit 8.-In the remote control signal receiving unit 9, infrared photosensors are respectively arranged. The remote control signal transmission unit 8 is for transmitting a remote control signal to an electrical device that can receive an infrared remote control signal, and the remote control signal reception unit 9 is a dedicated remote control device that comes standard with devices such as the television 2. The remote control device 1 learns the received signal here.
[0038]
FIG. 7 is a block diagram showing a circuit configuration of an embodiment of a remote control device according to the present invention.
As shown in FIG. 7, the remote control device 1 is provided with a central control circuit 100 that controls the entire circuit, and the signal of the external switch 6 b is input to the input terminal of the central control device 100. It has become.
[0039]
First, a method for inputting a user's password and voice for instructing the device to operate will be described.
The password issued by the user is received by the microphone 110, converted into an electric signal, and amplified by the amplifier 111.
The amplified electrical signal of the password is converted into a digital signal by the A / D converter 112, and the voice password is converted.-It is input to the node recognition circuit 103. The voice password recognition circuit 103 has a voice password.-Password preset in the password information memory 104-The password entered is recognized using information about the password. Then, the most probable password is estimated and notified to the central control circuit 100. Based on the correspondence between the user and the password set in advance in the RAM 101, the central control circuit 100 determines which password is used. It is judged whether it belongs to a person.
[0040]
When a user utters a voice for instructing a device to be operated by the remote controller, the voice instruction recognition circuit 113 selects a recognition target word for instructing the device to operate, which is registered in advance in the set voice instruction information memory 114. The recognition target word is recognized from the input voice. Then, the most probable recognition target word is estimated and notified to the central control circuit 100.
[0041]
When the recognition target word is recognized from the user's voice, the central control circuit 100 relates to which remote control signal the recognition target word is based on the correspondence relationship between the recognition target word preset in the RAM 101 and the remote control signal. For example, if it relates to the channel of the television 2, the IRED drive / control circuit 121 is instructed to transmit a remote control signal corresponding to the channel operation. Then, the IRED drive / control circuit 121 stores the remote control signal information of each device in advance.-The corresponding code from the command information memory 132.-The IRED 120 is driven based on this, and a remote control signal is transmitted.
[0042]
As the remote control signal stored in the IRED code information memory 132, code information of a remote control signal such as a television or a video that has already been released may be fixedly stored, or the photosensor 130, Photo sensor interface-Fe-Learning may be performed using the circuit 131.
For example, the remote controller 1 emits a voice “What is the operation target” by voice guidance, and when the user emits a voice such as “TV” as shown in FIG. Is recognized (step 701), and a voice message "Please input an infrared signal corresponding to the power operation" is issued (step 702), and a state of waiting for the input of the infrared signal is entered.
[0043]
When the user operates the remote control signal transmission unit of the dedicated remote control device of the television 2 close to the photosensor 130 (remote control signal reception unit 9), the remote control device 1 receives the remote control signal with the photosensor 130. This is a photo sensor interface-Fe-Through the circuit 131-Input information into the memory information memory 132,CardAs the IRED-In addition, the correspondence information between the recognition target word and the remote control signal is set in the RAM 101 (step 703).
[0044]
Similarly, the remote controller 1 asks for input of infrared signals corresponding to various operations of the television such as “Please input an infrared signal corresponding to the increase in volume” (step 704), and these are input to the IRED code information memory 132. And repeatedly setting the correspondence relationship between the recognition target word and the remote control signal in the RAM 101, as shown in FIG. 9, the code information stored in the IRED code information memory 131 in advance.WithThe learned code information is used as a remote control signal.
[0045]
In addition, a set of remote control signals including a remote control signal corresponding to a power operation, a remote control signal corresponding to a volume operation, and the like is different for each manufacturer even for a television having the same function, for example. But it varies from model to model. Therefore, the above IRED-When the code information of the remote control signals of the main TV and video that have already been released is fixedly stored in the remote information memory 132, the user may set which remote control signal set to use. It has become.
[0046]
That is, when the remote controller 1 utters “What is the operation target?” By the voice guidance and the user utters a voice such as “TV” as shown in FIG. 10, the remote controller 1 utters the voice. It recognizes (step 901), emits a voice “What is the name of the TV manufacturer?”, And enters a state of waiting for the input of the voice corresponding to the name of the manufacturer.
[0047]
When the user utters a voice such as “maker 1”, for example, the remote controller 1 recognizes the voice (step 902), and a plurality of remote control signals adopted by the television manufactured by “maker 1” are used. One of the sets is selected and set, and various operations such as a channel change operation and a volume change operation are automatically executed by the set of the set remote control signals (step 903).
[0048]
When the remote control operation is not performed well with the set of set remote control signals, when the user speaks “NG” (step 904 “No”), the remote control device 1 selects another set of remote control signals. Various operations are automatically executed again with the set remote control signal set (step 905).
[0049]
When the remote control operation is successfully performed with the set of the set remote control signals, when the user speaks “OK” (step 906 “Yes”), the correspondence between the recognition target word and the remote control signal is stored in the RAM 101. The relation is set, and the remote control device 1 sets the set of the remote control signals as the remote control signal of the television 2.
[0050]
In addition, since the remote control device 1 of the present embodiment is used away from the user's hand, it is possible to respond each operation with a voice in order to ensure a reliable operation. is there. For example, the key “TV”-Wa-When it recognizes the mode, it responds with a response such as "It's a TV operation."
For this purpose, the central control circuit 100 issues a predetermined instruction to the response voice control circuit 143 every time it operates. Upon receiving this, the response voice control circuit 143 takes out voice information stored in the response voice information memory 144 in advance, and emits a response voice using the D / A converter 142, the amplifier 141, and the speaker 140. ing.
[0051]
The response voice emitted from the speaker 140 is changed depending on the user. For example, when the user determined by the password is a visually impaired person with a visual impairment, it is used. The voice explaining the method is also emitted together, and the operability of the remote control device is improved.
FIG. 11 is a diagram showing an example of the sound of the remote control device 1 and the corresponding operation in the present embodiment.
[0052]
As shown in FIG. 11, for example, when the recognition target word “TV” is recognized from the voice indicating the device to be operated by the remote controller, the recognition target word indicating the device and the operation of the device set in advance in the RAM 101 are displayed. “Switch-on” or the like corresponding to the recognition target word indicating the device “TV” from among the recognition target words registered in the voice instruction information memory 114 based on the correspondence relationship with the recognition target word to be specified. The remote control device 1 enters a state of waiting for input of a voice instructing the operation of the television 2 and recognizes a voice to be subsequently generated based on the selected recognition target word. It has become.
[0053]
In other words, until this point in time, only the device that the remote controller wants to operate is recognized, and only after the voice indicating the device “TV” is received, “switch-on”, “channel 3”, etc. It is possible to reduce misrecognition of voice instructing remote control operation without recognizing voice instructing operation.
For example, when the recognition target word “video” is recognized, the recognition target registered in the voice instruction information memory 114 based on the correspondence relationship set in advance in the RAM 101 is the same as in the television. From the words, a recognition target word for instructing the operation of the video 3 is selected.
[0054]
Therefore, in the case where there are voices instructing the operation of the device that are expressed in the same recognition target word, it is not necessary to store them in the voice instruction information memory 114 in duplicate, and the voices instructing the operation Compared with the method of storing recognition target words for each device, the information stored in the voice instruction information memory 114 can be reduced, so that the required storage capacity of the voice instruction information memory 114 can be reduced.ExpensiveTherefore, it is not necessary to use the large-capacity voice instruction information memory 114, which can reduce the manufacturing cost.
[0055]
  In the above embodiment, the storage means which is a constituent element of the present invention corresponds to the voice instruction information memory 114 and the IRED code information memory 132, the voice recognition means corresponds to the voice instruction recognition circuit 113, and user identification is performed. The means corresponds to the password recognition circuit 103, the transmission means corresponds to the remote control signal transmitter 8 and the IRED 120, the information display means corresponds to the LCD panel 6a,operationThe instruction switch corresponds to the external switch 6b.
[0056]
Further, the above embodiment shows an example of the remote control device according to the present invention, and does not limit the configuration of the remote control device, the type of the remote control signal, and the like.
For example, in the above-described embodiment, as shown in FIG. 12A, an example in which the user who issued the password is specified based on the password registered in advance in the remote control device 1 by each user. As shown, each user does not know what password the other user has set, so the password of other users is included in the voice spoken accidentally without intending to operate the remote control. Since the remote control operation may be accidentally started even when the user has been using the remote controller, for example, as shown in FIG. 12B, the same password is used by all users and the remote controller 1 recognizes the password. Sometimes, it is preferable to specify a user by a known speaker recognition technique based on the voice that utters the password to reduce the possibility of erroneous operation.
[0057]
In addition, the example in which the user utters “switch-on” after uttering “TV” is shown, but in addition to the “TV” sound, the user says “usual”. When a voice is emitted, the frequency of use of the recognition target word that instructs the operation of the television 2 used by the user is referred to, and a remote control signal that indicates an operation having a significant difference in the use frequency is transmitted. However, the target operation can be performed with a small number of utterances for operations such as televisions, audios, and air conditioners that are almost determined by the user's preference, and the operability is improved.
[0058]
【The invention's effect】
  As described above, in the remote control device according to the present invention,Recognize the recognition target words contained in the speech uttered by the user based on the usage frequency of the recognition target words of the user, that is, for each user based on the history of recognition results of the speech uttered by the user Recognize target words that have been statistically processed according to the user by statistically processing information such as which recognition target words are frequently used, and recognizing the target words contained in the speech uttered by the user. Since the recognition is performed based on the frequency of use, it is possible to reduce erroneous recognition of voice by the remote control device.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram for explaining a usage example of an embodiment of a remote control device according to the present invention.
FIG. 2 is a flowchart showing an outline of processing performed by the remote control device of FIG. 1;
FIG. 3 is an explanatory diagram for explaining an outline of password recognition performed in the flowchart of FIG. 2;
FIG. 4 is an explanatory diagram for explaining an outline of voice instruction recognition implemented in the flowchart of FIG. 2;
FIG. 5 is a perspective view of the remote control device of FIG. 1 when viewed from the front side.
6 is an explanatory diagram for explaining the operation of the LCD panel of FIG. 5; FIG.
7 is a block diagram showing a circuit configuration of the remote control device of FIG. 1. FIG.
8 is a flowchart showing a procedure for learning a remote control signal in the IRED code information memory of FIG. 7;
9 is an explanatory diagram for explaining an outline of a remote control signal stored in the IRED code information memory of FIG. 7;
10 is a flowchart showing a procedure for setting the IRED drive / control circuit of FIG. 7; FIG.
FIG. 11 is an explanatory diagram illustrating an example of storing recognition target words associated with the remote control device of FIG. 1;
FIG. 12 is an explanatory diagram for describing a modification of the password recognition process performed in the flowchart of FIG. 2;
[Explanation of symbols]
1 Rimo-Tocontro-Equipment
2 TV
3 videos
4 Air conditioner
6a LCD panel
6b External switch
100 Central control circuit
103 Password recognition circuit
104 Password information memory
113 Voice instruction recognition circuit
114 Voice instruction information memory
120 IRED (Infrared light emitting diode)
121 IRED drive / control circuit
132 IRED code information memory

Claims (4)

Speech recognition means for recognizing a recognition target word included in speech uttered by a user by comparing with a recognition target word registered in advance, and a remote controller corresponding to the recognition target word recognized by the speech recognition means A transmission means for transmitting a signal, a user identification means for identifying a user, and a use frequency of a recognition target word is calculated based on a recognition result of the voice recognition means for each user identified by the user identification means. Use frequency calculation means to
The voice recognition means, before SL user recognition terms emitted from the identified user identification means, when the recognition target word instructing an operation after recognition terms with respect to the operating, the usage frequency calculation means A remote control device characterized by recognizing a recognition target word instructing the action obtained in step (b) and transmitting the remote control signal corresponding to the recognition target word instructing the action .   A recognition target word is stored separately for a plurality of operation targets that indicate a desired operation target and a plurality of operation targets that indicate an operation of the plurality of operation targets, and a recognition target that indicates the operations of the plurality of operation targets Storage means for storing a word separately into recognition target words for instructing operations common to the plurality of operation objects and recognition target words for instructing operations specific to the plurality of operation objects, and the speech recognition means, A recognition target word included in a voice uttered by a user is recognized based on the storage unit, and the transmission unit includes a recognition target word indicating a desired operation target recognized by the voice recognition unit and the plurality of recognition target words. 2. The remote control device according to claim 1, wherein a remote control signal corresponding to a combination with a recognition target word for instructing an operation of the operation target is transmitted.   Information display means for displaying information related to a remote control operation that can be instructed by the user, and an operation instruction switch for instructing the user to perform a desired remote control operation based on information related to the remote control operation displayed on the information display means. The remote control device according to claim 1 or 2 provided.   The remote control device according to claim 1, further comprising an operation state display unit that displays an operation state of the voice recognition unit.

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