JP2011035594A - Data receiver, transmitter/receiver, method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data transmitter/receiver capable of saving or transmitting data including a desired component out of signal components included in received data. <P>SOLUTION: A reception circuit 110 receives data. A signal detection circuit 120 detects a signal included in data received by the reception circuit 110. A data processing circuit 140 corrects the data on the basis of the signal detection result of the signal detection circuit 120. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a data transmission / reception apparatus, method, and program, and more particularly, to a data transmission / reception apparatus, a data transmission / reception method, and a data transmission / reception program that receive data including various signal components.

  There is a data transmission / reception device that receives and outputs data. Patent Document 1 describes a voice monitor circuit that captures information from a communication line in a digital mobile communication network and monitors a call. FIG. 8 shows a non-voice compatible module used in the voice monitor circuit described in Patent Document 1. The communication path switch 1003 branches the test target line. The non-speech identification circuit 1015 detects non-speech communication identification information from an encoded sequence that is branched and input from the test target line. The voice ROM 1016 stores voice guidance that informs that non-voice communication is being performed as μ-law encoded information.

  The voice ROM 1016 always outputs voice guidance information to the selector 1017. When the non-voice identification circuit 1015 detects non-voice communication identification information, the non-voice identification circuit 1015 sends a determination signal indicating the fact to the selector 1017. When a determination signal indicating that identification information for non-voice communication has been detected is input, selector 1017 outputs voice guidance information input from voice ROM 1016 to D / A converter 1041. When the determination signal indicating that the non-voice communication identification information is not detected is input from the non-voice identification circuit 1015, the selector 1017 outputs the encoded sequence branched from the test target line to the D / A converter 1041. To do.

Japanese Patent Publication No. 8-32675 Japanese Patent Publication No. 7-30930 Japanese Patent No. 3344784 Japanese Patent No. 3464055

3GPP TS 26.094, “Mandatory speech codec speech processing functions; Adaptive Multi-Rate (AMR) speech codec; Voice Activity Detector (VAD)”, V0.0 (2007-06) 3GPP TS 26.090, “AMR speech codec; Transcoding Functions”, V0.0 (2007-06) ITU-T Recommendation H.263, “Video Coding for Low Bit Rate Communication”, H263 (2005-01) IETF RFC3267, “Real-Time Transport Protocol (RTP) Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs”, June 2002

  When the encoded signal input after branching is a non-voice communication signal, the voice monitor circuit described in Patent Document 1 outputs a guidance for notifying the maintenance person that the non-voice communication is being performed. Is a circuit that outputs the branched encoded signal after converting the encoded signal into a μ-law signal. The voice monitor circuit described in Japanese Patent Laid-Open Publication No. 2003-228561 can only be used to output a message indicating non-voice communication to the maintenance person when the communication content is non-voice. Therefore, the audio monitor circuit described in Patent Document 1 cannot be applied to a use of extracting a desired component from signal components included in received data.

  In view of the above, an object of the present invention is to provide a data receiving apparatus, transmitting / receiving apparatus, method, and program capable of storing or transmitting data including a desired component among signal components included in received data.

  To achieve the above object, the present invention is based on a receiving circuit for receiving data, a signal detecting circuit for detecting a signal included in the data received by the receiving circuit, and a signal detection result of the signal detecting circuit. There is provided a data receiving device comprising a data processing circuit for correcting the data.

  The present invention includes a step in which a data receiving device receives data, a step in which the data receiving device detects a signal included in the received data, and the data receiving device is based on a detection result of the signal. A data receiving method for a data receiving apparatus, comprising the step of modifying the received data;

  The present invention causes a computer to execute a process of receiving data, a process of detecting a signal included in the received data, and a process of correcting the received data based on a detection result of the signal Provide a program.

  The data reception device, transmission / reception device, method, and program of the present invention can store or transmit data including a desired component among signal components included in the received data.

1 is a block diagram showing a data transmitting / receiving apparatus according to a first embodiment of the present invention. The table which illustrates the correspondence of a signal detection result and a control signal. The flowchart which shows an operation | movement procedure. The block diagram which shows the data transmitter / receiver of 2nd Embodiment of this invention. The block diagram which shows the data transmitter / receiver of 3rd Embodiment of this invention. The block diagram which shows the data transmitter / receiver of 4th Embodiment of this invention. The block diagram which shows the data transmitter / receiver of 5th Embodiment of this invention. The block diagram which shows the audio | voice monitor circuit of patent document 1. FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a data transmitting / receiving apparatus according to a first embodiment of the present invention. The data transmission / reception apparatus includes an input circuit 100 and an output circuit 200. The input circuit 100 includes a reception circuit 110, a signal detection circuit 120, a control circuit 130, and a reception data storage circuit 150. The input circuit 100 corresponds to a data receiving device. The output circuit 200 includes a transmission circuit 210 and a transmission data storage circuit 220.

  The receiving circuit 110 inputs data via the terminal 10. As input data, for example, media data such as audio, video, and text can be assumed. Data received by the receiving circuit 110 includes signals of various components. The signal detection circuit 120 detects a signal included in the data received by the reception circuit 110. The signal detection circuit 120 performs signal detection on the received data using a predetermined signal detection method.

  For example, the signal detection circuit 120 detects a specific non-audio signal from audio data input as media data. As the specific non-speech signal, a non-speech signal such as silence, noise, and tone signal can be considered. As a signal detection method for detecting a non-speech signal from speech data, for example, the signal detection methods described in Patent Document 2 and Non-Patent Document 1 can be used.

  When the reception circuit 110 receives video data as media data, the signal detection circuit 120 detects a specific video state such as a black screen or a gray screen from the video data, for example. As a signal detection method for detecting a specific video from video data, the signal detection method described in Patent Document 3 can be used. The signal detection circuit 120 may detect a specific character or word from text data input as media data. As a signal detection method for detecting a specific character or word from text data, the signal detection method described in Patent Document 4 can be used.

  The data processing circuit 140 corrects the data received by the receiving circuit 110 based on the detection result of the signal detection circuit 120. For example, the data processing circuit 140 attenuates or amplifies a specific signal component included in the received data. The signal component to be attenuated or amplified does not need to match the signal component detected by the signal detection circuit 120. That is, the data processing circuit 140 may correct the signal component detected by the signal detection circuit 120 or may correct the signal component different from the detected signal component.

  The reception data storage circuit 150 is a storage device such as a hard disk drive or a memory. The data processing circuit 140 stores the corrected data in the received data storage circuit 150. For example, when a signal of a specific component is detected by the signal detection circuit 120, the data processing circuit 140 corrects the received data and stores the corrected data in the received data storage circuit 150. Alternatively, the data processing circuit 140 stores the received data as it is in the received data storage circuit 150 when the signal detection circuit 120 does not detect the signal, and when there is a signal detection, the data processing circuit 140 receives the corrected received data as the received data storage circuit. 150.

  The control circuit 130 controls each unit in the input circuit 100. The control circuit 130 receives the signal detection result from the signal detection circuit 120, and outputs a control signal corresponding to the signal detection result to the reception circuit 110, the data processing circuit 140, and the output circuit 200. The receiving circuit 110 outputs received data to the data processing circuit 140 in accordance with the control signal. In addition, the data processing circuit 140 corrects the received data input from the receiving circuit 110 based on the control signal. The output circuit 200 outputs data from the terminal 20 in accordance with the control signal.

  FIG. 2 shows the correspondence between the signal detection result in the signal detection circuit 120 and the control signal. The control circuit 130 holds a control table showing the correspondence between the signal detection result and the control signal as shown in FIG. The control circuit 130 determines the control signal with reference to the control table. For example, when the signal detection result indicating that the non-voice 1 is detected is input from the signal detection circuit 120, the control circuit 130 receives the control signal 1 corresponding to the non-voice 1 as the reception circuit 110, the data processing circuit 140, And it outputs to the output circuit 200. In this case, the reception circuit 110, the data processing circuit 140, and the output circuit 200 perform processing according to the control signal 1.

  The correspondence relationship between the signal detection result and the control signal may not be common to the receiving circuit 110, the data processing circuit 140, and the output circuit 200. For example, a control table may be prepared for each of the receiving circuit 110, the data processing circuit 140, and the output circuit 200, and the correspondence between the signal detection result and the control signal may be changed for each circuit. Specifically, for example, the control circuit 130 outputs a control signal 0 to the reception circuit 110 and outputs a control signal 1 to the data processing circuit 140 and outputs the signal detection result “non-voice 1”. The control signal 2 may be output to the circuit 200.

  In FIG. 1, the control circuit 130 is provided and the reception circuit 110, the data processing circuit 140, and the output circuit 200 are controlled using control signals. However, these circuits are not intervened with control signals. It is also possible to perform a control to For example, the signal detection result of the signal detection circuit 120 is directly input to the reception circuit 110, the data processing circuit 140, and the output circuit 200. Each circuit performs processing according to the signal detection result input from the signal detection circuit 120. In this case, the control circuit 130 can be omitted. Alternatively, a configuration in which the signal detection result is input to the output circuit 200 and the data receiving circuit 110 and the data processing circuit 140 are controlled from the output circuit 200 is also possible. In this case, data correction in the data processing circuit 140 can be controlled in accordance with the data output state in the output circuit 200.

  The output circuit 200 corresponds to a data transmission device. The transmission data storage circuit 220 stores and holds predetermined data. The transmission data storage circuit 220 stores media data such as audio, video, and text. For example, when audio data is assumed as media data, the transmission data storage circuit 220 stores data corresponding to various audio guidances as files.

  The data stored in the transmission data storage circuit 220 may be encoded using an appropriate media encoding method from the viewpoint of storage efficiency. As a media encoding method of audio data, for example, the encoding method described in Non-Patent Document 2 can be used. When video data is considered as media data, similarly, the transmission data storage circuit 220 stores and holds a plurality of data corresponding to various video guidances as files. For encoding video data, the media encoding method described in Non-Patent Document 3 can be used.

  The transmission circuit 210 outputs data from the terminal 20 in accordance with the signal detection result in the signal detection circuit 120. The transmission circuit 210 reads data from the transmission data storage circuit 220 and outputs it from the terminal 20. The output destination of the data may be the other party who input the data to the terminal 10 or a different party. The transmission circuit 210 reads data from the transmission data storage circuit 220 in accordance with the control signal output from the control circuit 130 of the input circuit 100.

  The operation procedure will be described. FIG. 3 shows an operation procedure of the transmission / reception apparatus. The receiving circuit 110 inputs data through the terminal 10 (step S1). The reception circuit 110 outputs the received data to the signal detection circuit 120. When the data is divided into a plurality of blocks, the reception circuit 110 may output the block data to the signal detection circuit 120 every time the block data is received. The size of the block data may be a fixed size or may be different for each block.

  The signal detection circuit 120 detects a specific signal component from the received data (step S2). The signal detection circuit 120 outputs the signal detection result to the control circuit 130. When the signal detection circuit 120 detects a specific signal component, the signal detection circuit 120 outputs a signal detection result indicating which signal component is detected. Further, when a specific signal component cannot be detected, the signal detection circuit 120 outputs a signal detection result indicating that fact. Alternatively, no signal detection result (no signal) may correspond to a signal detection result when a specific signal component cannot be detected.

  The control circuit 130 determines a control signal based on the signal detection result input from the signal detection circuit 120 (step S3). The control circuit 130 outputs a control signal to the reception circuit 110, the data processing circuit 140, and the transmission circuit 210. For example, the reception circuit 110 holds a table indicating a correspondence relationship between a control signal and whether or not data should be output to the data processing circuit 140. When the control signal is input, the reception circuit 110 refers to the table held and determines whether to output the reception data to the data processing circuit 140.

  The data processing circuit 140 holds, for example, a table indicating a correspondence relationship between control signals and data correction contents. When the control signal is input, the data processing circuit 140 refers to the held table and corrects the received data input from the receiving circuit 110 (step S4). In step S4, the data processing circuit 140 amplifies or attenuates a specific signal component. The data processing circuit 140 stores the corrected received data in the received data storage circuit 150.

  The transmission circuit 210 holds, for example, a table indicating a correspondence relationship between control signals and data to be read. When the control signal is input, the transmission circuit 210 reads data from the transmission data storage circuit 220 with reference to a held table. For example, the transmission circuit 210 reads data 1 from the transmission data storage circuit 220 in response to the control signal 1. The transmission circuit 210 reads data 2 from the transmission data storage circuit 220 in response to the control signal 2. The transmission circuit 210 transmits the read data to the outside via the terminal 20 (step S5).

  The signal detection circuit 120 detects non-voice signals such as silence, tone signals, and noise from voice media data, for example. The control circuit 130 controls the control signals (control signals 1, 2,..., N) corresponding to the detected non-speech signals (non-speech 1, 2,..., N) according to the control table shown in FIG. Is output. The receiving circuit 110 receives the control signal and outputs received data to the data processing circuit 140. Alternatively, the reception circuit 110 may always output reception data to the data processing circuit 140 regardless of the presence or absence of a control signal.

  The data processing circuit 140 corrects the data from the receiving circuit 110 based on the received control signal. The data processing circuit 140, for example, in accordance with the type of non-speech signal (non-speech 1, 2,..., N), according to the signal characteristics of the detected non-speech signal, the non-speech included in the received data. A part or all of the signal components are attenuated. More specifically, the data processing circuit 140 attenuates, for example, a signal having a relatively large amplitude (energy, power) in a frequency component of a non-speech signal. It is assumed that the component attenuated by the data processing circuit 140 and the magnitude of attenuation can be adjusted according to the data quality after attenuation.

  The transmission data storage circuit 220 stores various data corresponding to the types of non-speech signals (non-speech 1, 2,..., N). The data stored in the transmission data storage circuit 220 is, for example, voice guidance data. In response to a control signal (control signals 1, 2,..., N) input from the control circuit 130, the transmission circuit 210 sends a non-voice signal type (non-voice 1, 2,...) From the transmission data storage circuit 220. ..Voice guidance data corresponding to N) is read. The transmission circuit 210 does not output the voice guidance data when the control signal input from the control circuit 130 is the control signal 0 corresponding to the voice signal.

  Note that the correspondence relationship between the type of the detected signal and the control signal and the correspondence relationship between the control signal and the output data are not limited to those exemplified above. These correspondences can be arbitrarily determined according to a desired operation. Further, in the processing of the data processing circuit 140, it is possible to apply processing for sound to non-sound and apply processing for non-speech to processing for sound.

  When the data stored in the transmission data storage circuit 220 is encoded using the media encoding method, the transmission circuit 210 adds header information indicating the attribute of the media encoded data to the media encoded data. Thus, the packet data can be assembled and the packet data can be transmitted via the terminal 20. When speech data is considered as media data, the method described in Non-Patent Document 4 can be used as a method for assembling packet data for speech encoded data. Even in the case of other encoding methods, a packet data assembling method defined according to the encoding method can be used. When packet data transmission / reception is performed in a closed system, it is possible to use a unique packet data assembly method different from the standard method. The same applies to other media data such as video data and text data.

  Although the reception data storage circuit 150 and the transmission data storage circuit 220 are separated in FIG. 1, they may be the same storage circuit. For example, data to be output from the transmission circuit 210 may be stored in the reception data storage circuit 150, or data corrected by the data processing circuit 140 may be stored in the transmission data storage circuit 220. . The transmission circuit 210 may read data from the reception data storage circuit 150 as well as the transmission data storage circuit 220. When a configuration in which the memory circuit is shared is employed, there is an effect that the configuration can be simplified.

  Here, a specific operation example of the data transmitting / receiving apparatus will be described. First, a case where the data transmitting / receiving apparatus is applied to a service for leaving a message message will be described. The user communicates with the data transmission / reception apparatus using, for example, a mobile phone. The receiving circuit 110 receives audio media data from the input terminal 10. The signal detection circuit 120 detects a non-voice signal from the received media data. The control circuit 130 outputs a control signal 0 when the signal detection circuit 120 does not detect a non-speech signal. The reception circuit 110 outputs the reception data to the data processing circuit 140, and the data output circuit 140 stores the reception data in the reception data storage circuit 150.

  When the user operates the mobile phone to transmit a tone signal, the signal detection circuit 120 detects a non-voice signal. The non-speech signal detected here is designated as non-speech 2. The control circuit 130 outputs the control signal 2 corresponding to the non-voice 2 according to the correspondence shown in FIG. The transmission circuit 210 reads data such as “please input a message” from the transmission data storage circuit 220 and transmits the data to the user's mobile phone from the terminal 20. The user blows a message.

  When the control signal 2 is input, the data processing circuit 140 corrects the received data and stores it in the received data storage circuit 150. At this time, the data processing circuit 140 attenuates the signal component (tone signal) corresponding to the non-voice 2 included in the received data. By doing so, data is stored in the received data storage circuit 150 in a state where tone signals that are unnecessary signal components are suppressed. Thereafter, when the user blows a message, the data processing circuit 140 stores the user's message in the received data storage circuit 150.

  It is assumed that the user transmits another tone signal after the message is blown. The signal detection circuit detects another tone signal. The non-speech signal detected at this time is designated as non-speech 4. The control circuit 130 outputs the control signal 4 corresponding to the non-voice 4 according to the correspondence shown in FIG. When the control signal 4 is input, the data processing circuit 140 attenuates a signal component (tone signal) corresponding to the non-speech 4 included in the reception data and stores it in the reception data storage circuit 150. In addition, when the control signal 4 is input, the transmission circuit 210 reads a message that the user has blown from the reception data storage circuit 150 and transmits the message to the user's mobile phone. In this case, the user can confirm the content of the message that he / she has infused.

  In the above, from the viewpoint of storing a voice message, the tone signal which is a non-voice signal is attenuated. A tone signal is not necessarily an unnecessary signal. For example, when a tone signal input from a user is stored and used, for example, a number such as an ID number is transmitted without using voice by telephone. Is also possible. In such a case, in order to emphasize the tone signal, signal components other than the tone signal, specifically, the voice signal when the user utters voice before and after transmitting the tone signal may be attenuated. Alternatively, in order to emphasize the tone signal, the signal component of the tone signal may be amplified instead of or in addition to the attenuation of the signal component other than the tone signal.

  Next, as another application example, consider the case of application to monitoring using a monitoring camera. The receiving circuit 110 receives video media data taken by the surveillance camera from the terminal 10. The signal detection circuit 120 detects a specific image state from the video media data. For example, when the video from the surveillance camera is interrupted, the signal detection circuit 120 detects a black screen. The control circuit 130 outputs a control signal corresponding to black image detection. The data processing circuit 140 attenuates or removes the black image component and stores it in the received data storage circuit 150.

  In response to the control signal, the transmission circuit 210 reads data such as “video interruption has occurred” from the transmission data storage circuit 220. The transmission circuit 210 transmits the read data to a user's mobile phone or the like designated as a report destination. In this case, the user can know that a video break has occurred in the surveillance camera.

  In the present embodiment, the signal detection circuit 120 detects a signal from the data received by the reception circuit 110. The data processing circuit 140 modifies the received data in accordance with the signal detected by the signal detection circuit 120 and stores it in the received data storage circuit 150. By doing in this way, the data containing a desired signal component can be preserve | saved among the signal components contained in reception data. In the present embodiment, the transmission circuit 210 reads data corresponding to the signal detected by the signal detection circuit 120 from the transmission data storage circuit 220. By doing in this way, the data according to the detected signal component can be output.

  FIG. 4 shows a transmission / reception apparatus according to the second embodiment of the present invention. The transmission / reception apparatus of this embodiment has a configuration in which the reception data storage circuit 150 and the transmission data storage circuit 220 are omitted from the transmission / reception apparatus of the first embodiment shown in FIG. The data processing circuit 140 outputs data from the terminal 11 instead of storing the data in the reception data storage circuit 150. The transmission circuit 210 outputs arbitrary data input via the terminal 21 and the terminal 22 instead of reading and outputting the data from the transmission data storage circuit 220. Other points are the same as in the first embodiment.

  The operation procedure of this embodiment will be described. The operation procedure of this embodiment is different from that of the first embodiment in steps S4 and S5 in FIG. In step S4, the data processing circuit 140 modifies the reception data input from the reception circuit 110 in accordance with the control signal from the control circuit 130. The data processing circuit 140 outputs the corrected data from the terminal 11 to the outside. Arbitrary data is input to the transmission circuit 210 from the outside via the terminal 21 and the terminal 22. In step S5, the transmission circuit 210 selects data from the terminal 21 or data from the terminal 22 according to the control signal from the control circuit 130, and outputs the data from the terminal 20 to the outside.

  In the second embodiment, the reception data storage circuit 150 and the transmission data storage circuit 220 are both omitted. However, either the reception data storage circuit 150 or the transmission data storage circuit 220 may be omitted. It is. That is, a configuration in which the reception data storage circuit 150 is omitted and the data processing circuit 140 outputs data from the terminal 11 while the transmission circuit 210 reads and outputs data from the transmission data storage circuit 220 is also possible. Conversely, the transmission data storage circuit 220 is omitted, and the data processing circuit 140 stores data in the reception data storage circuit 150 while the transmission circuit 210 outputs arbitrary data input via the terminal 21 and the terminal 22. Configuration is also possible. Further, in FIG. 4, there are two terminals 21 and 22 for inputting data to the transmission circuit 210, but the number of terminals is arbitrary, and data is transmitted to the transmission circuit 210 via three or more terminals. You may enter.

  In the present embodiment, the signal detection circuit 120 detects a signal from the data received by the reception circuit 110. The data processing circuit 140 corrects the received data according to the signal detected by the signal detection circuit 120 and outputs it from the terminal 11. By doing so, it is possible to transmit data including a desired signal component among the signal components included in the received data. In the present embodiment, the transmission circuit 210 outputs data corresponding to the signal detected by the signal detection circuit 120 from the input data. By doing in this way, the data according to the detected signal component can be output.

  FIG. 5 shows a data transmitting / receiving apparatus according to the third embodiment of the present invention. The data transmission / reception apparatus of this embodiment is different from the data transmission / reception apparatus of the first embodiment shown in FIG. 1 in that an instruction signal is input to the data processing circuit 140 via the terminal 30. The data processing circuit 140 corrects the received data based on an instruction signal from the outside and a control signal from the control circuit 130. The instruction signal includes, for example, data correction parameters in the data processing circuit 140. Other points are the same as in the first embodiment.

  For example, it is assumed that the data processing circuit 140 attenuates a signal having a relatively large amplitude (energy, power) in a frequency component of a non-speech signal. The instruction signal can include an instruction for setting a component to be attenuated and a magnitude of attenuation by correcting data. The data processing circuit 140 performs data correction according to the content of the instruction signal. In addition, when the instruction signal is input, the data processing circuit 140 may switch between performing data correction and not performing correction according to the content of the instruction signal regardless of the content of the control signal.

  In this embodiment, an instruction signal is input to the data processing circuit 140 from the outside. The data processing circuit 140 corrects data based on an instruction signal input from the outside and a control signal corresponding to the signal detection result in the signal detection circuit 120. In the present embodiment, it is possible to vary the content of the correction process performed by the data processing circuit 140 using a combination of a control signal and an instruction signal. Alternatively, the contents of the data correction process performed by the data processing circuit 140 can be made variable only with the instruction signal. Other effects are the same as those of the first embodiment.

  FIG. 6 shows a data transmitting / receiving apparatus according to the fourth embodiment of the present invention. The data transmission / reception apparatus of this embodiment is different from the data transmission / reception apparatus of the second embodiment shown in FIG. 4 in that an instruction signal is input to the data processing circuit 140 via the terminal 30. The data processing circuit 140 performs data correction based on an external instruction signal and a control signal corresponding to the signal detection result. The meaning of the instruction signal and the contents of the data correction process performed by the data processing circuit 140 are the same as those in the third embodiment. The end point is the same as in the second embodiment. In this embodiment, the effect obtained in the second embodiment and the effect obtained in the third embodiment are obtained.

  FIG. 7 shows a data transmitting / receiving apparatus according to the fifth embodiment of the present invention. The data transmitting / receiving apparatus according to the present embodiment is realized by computer control such as a digital signal processor. The computer 500 includes a CPU 501, a memory 503, and a recording medium reading device interface 504. A recording medium 601 is set in the recording medium reading device 600. The CPU 501 executes processing according to a program loaded in the memory 503. The recording medium reading device interface 504 reads a program stored in the recording medium 601 from the recording medium reading device 600.

  The recording medium 601 stores a program for causing the computer 500 to function as a data transmission / reception device. More specifically, the recording medium 601 includes a process for receiving data, a process for detecting a signal included in the received data, a process for correcting received data based on the detection result of the signal, A program for causing the computer 500 to execute processing for outputting data according to the detection result is stored. As the recording medium 601, a medium such as an FD (flexible disk), a CD (Compact Disk), a DVD (Digital Versatile Disk), a magnetic tape (MT), or a portable HDD (Hard Disk Drive) can be used. Further, the computer 500 may acquire the program from a server device or the like via a communication path such as priority or wireless, instead of reading the program from a specific medium.

  In each of the above embodiments, audio data is mainly assumed as input data. However, as supplemented in the description of the embodiment, the input data is not limited to audio data, and media data such as video data and text data other than audio data may be used as the input data. In that case, the data processing circuit 140 may detect a signal included in the input media data. Further, although audio data is mainly assumed as output data, output data is not limited to audio data, as is the case with input data. The transmission circuit 210 may transmit media data such as video data and text data other than audio according to the signal detection result.

  As mentioned above, although this invention was demonstrated based on the suitable embodiment, the data receiver of this invention, a transmission / reception apparatus, a method, and a program are not limited only to the said embodiment, The said embodiment is not limited. Those in which various modifications and changes have been made to the configuration are also included in the scope of the present invention.

  Finally, the minimum configuration of the present invention will be described. The data receiving apparatus of the present invention includes a receiving circuit, a signal detection circuit, and a data processing circuit as a minimum configuration. The receiving circuit receives data. The signal detection circuit detects a signal included in the data received by the reception circuit. The data processing circuit corrects the data based on the signal detection result.

  The minimum configuration of the data receiving method of the present invention includes a step of receiving data, a step of detecting a signal included in the received data, and a step of correcting the received data based on the detection result of the signal. It is.

  The minimum configuration of the program of the present invention includes a process of receiving data in a computer, a process of detecting a signal included in the received data, and a process of correcting the received data based on the signal detection result. The configuration is to execute.

  In the present invention, data is received and a signal is detected from the received data. Thereafter, the received data is corrected based on the detection result of the signal. By doing so, it is possible to obtain data including a desired signal component among the signal components included in the reception data.

10, 11, 20, 21, 22, 30: Terminal 100: Input circuit 110: Reception circuit 120: Signal detection circuit 130: Control circuit 140: Data processing circuit 150: Reception data storage circuit 200: Output circuit 210: Transmission circuit 220 : Transmission data storage circuit 500: Computer 501: CPU
503: Memory 504: Recording medium reading device interface 600: Recording medium reading device 601: Recording medium

Claims (24)

A receiving circuit for receiving data;
A signal detection circuit for detecting a signal included in the data received by the reception circuit;
A data receiving apparatus comprising: a data processing circuit that modifies the data based on a signal detection result of the signal detection circuit.   The data receiving device according to claim 1, wherein the data processing circuit inputs an instruction signal from outside and corrects the data based on the instruction signal and the signal detection result.   The data receiving device according to claim 1, wherein the data processing circuit attenuates or amplifies at least a part of a signal component included in the data.   The data reception device according to claim 1, wherein the data processing circuit stores the corrected data in a reception data storage circuit according to the signal detection result.   The data receiving device according to any one of claims 1 to 3, wherein the data processing circuit outputs the corrected data to the outside according to the signal detection result. A data receiving device according to any one of claims 1 to 5,
A data transmission / reception apparatus comprising: a transmission circuit that outputs data according to a signal detection result of the signal detection circuit.   The data transmission / reception apparatus according to claim 6, wherein the transmission circuit reads and outputs data corresponding to the signal detection result from a transmission data storage circuit that stores and holds predetermined data.   The data transmission / reception apparatus according to claim 6, wherein the data transmission circuit inputs data to be transmitted from the outside, and outputs data corresponding to the signal detection result among the input data. A data receiving device receiving data;
The data receiving device detecting a signal included in the received data;
A data receiving method of the data receiving apparatus, the data receiving apparatus comprising: correcting the received data based on the detection result of the signal.   The data receiving method according to claim 9, wherein in the step of correcting the data, the data receiving device corrects the data based on an external instruction signal and a detection result of the signal.   The data receiving method according to claim 9 or 10, wherein in the step of correcting the received data, the data receiving device attenuates or amplifies at least a part of a signal component included in the data.   The data receiving method according to claim 9, further comprising a step of storing the corrected data in a received data storage circuit according to the detection result of the signal.   The data receiving method according to any one of claims 9 to 11, further comprising a step of outputting the corrected data to the outside in accordance with the detection result of the signal. A data transmitting / receiving device receiving data;
The data transmitting / receiving apparatus detecting a signal included in the received data;
The data transmitting / receiving apparatus correcting the received data based on the detection result of the signal;
A data transmission / reception method of the data transmission / reception apparatus, the data transmission / reception apparatus comprising: outputting data corresponding to the detection result of the signal;   15. The data transmission / reception device according to claim 14, wherein in the step of outputting data, the data transmission / reception device reads out and outputs data corresponding to the signal detection result from a transmission data storage circuit that stores and holds predetermined data. Transmission / reception method.   The data transmission / reception apparatus according to claim 14, wherein the data transmission / reception apparatus outputs data corresponding to a detection result of the signal among data to be transmitted input from outside in the step of outputting data. Method. On the computer,
Processing to receive data;
Processing for detecting a signal included in the received data;
A program for executing a process of correcting the received data based on a detection result of the signal.   The program according to claim 17, wherein in the process of correcting the data, the data is corrected based on an external instruction signal and a detection result of the signal.   The program according to claim 17 or 18, wherein, in modifying the received data, at least a part of a signal component included in the data is attenuated or amplified.   20. The program according to claim 17, further causing the computer to further execute a process of storing the corrected data in a received data storage circuit in accordance with the detection result of the signal.   The program according to any one of claims 17 to 19, further causing the computer to further execute a process of outputting the corrected data to the outside according to a detection result of the signal.   The program according to claim 17, further causing the computer to execute a process of outputting data corresponding to the detection result of the signal.   23. The program according to claim 22, wherein in the process of outputting data, data corresponding to the signal detection result is read out and output from a transmission data storage circuit that stores and holds predetermined data.   23. The program according to claim 22, wherein in the process of outputting the data, data corresponding to a detection result of the signal is output from data to be transmitted input from the outside.

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