JP4344718B2 - Telephone device - Google Patents

Description

  The present invention relates to a call system via a network.

  Conventionally, in a conversation using a communication device via a network, it is desirable that there are few echoes in order to have a smooth conversation with each other. For this reason, an echo canceling device for canceling the echo is often provided.

  If echo cancellation is not performed, the user's own voice output from the speaker is input to the microphone, and his voice returns to the caller. This is an echo, and a situation occurs in which the voice spoken by the user can be heard back to the user via the other party's call device, making the conversation difficult. Since the echo canceling device itself is known, a description of the operation is omitted.

  Also, when making a call using a call device, it is common to confirm whether or not the other party can hear his / her voice before speaking. In addition, even if the call is in progress, the other party is silent, so if you can't hear the voice, you may be anxious and check whether you can hear it by interrupting the conversation. As a result, the conversation may be interrupted unnaturally.

  Conventionally, the voice on the sending side has arrived at the other side as a packet. The other side device returns a response packet to the sending side device, and when the sending side receives this response packet, the voice packet arrives at the other side. There is a technique for detecting that this is happening (see Patent Document 1).

  In the technique described in Patent Document 1, by providing a volume sensing means in the counterpart device, as described above, the voice on the transmission side reaches the counterpart side as a packet and is output and output as a sound from the speaker on the counterpart side. The sound is input by the microphone of the other party, the volume of the sound is detected by the volume detecting means, the detected volume data is returned as a response packet to the transmitting side, and the receiving side receives the returned response packet. The voice is output to the side, and the volume is notified to the user.

JP 2004-48329 A

  As mentioned above, in the case of a call using the above communication device via a network, since it is not known whether or not his / her voice has arrived at the other party, each person speaks before starting to speak and his / her voice is sent to the other party. It was common to check if it was heard. In addition, if the other party is silent during the call, the other party's voice is not heard, so that the conversation is interrupted and whether or not the voice is heard may be confirmed. As a result, the conversation is interrupted unnaturally.

  In the above-mentioned Patent Document 1, it can be confirmed that the voice has arrived by the informationized packet, but in order to confirm it, some kind of display device or the like is necessary, and it cannot be confirmed by a communication device that does not have a display device. There is a problem.

The call device according to the present invention transmits the voice input from the voice input unit to the counterpart device, receives the voice transmitted from the counterpart device, and outputs the voice from the voice output unit, from the voice output unit a communication device comprising an echo canceller function of reducing echoes are sent to the communication partner of the device by the sound output is inputted from the voice input unit, the predetermined from the start of the passage talk time, the echo It is characterized by inhibiting or suppressing the function of the canceller.

  Also, the voice input from the voice input unit is transmitted to the other party's device, the voice transmitted from the other party's device is received and output from the voice output unit, and the voice output from the voice output unit is A call device having an echo canceller function for reducing echoes transmitted to the other party's device by being input from the voice input unit, and when a silent state occurs in the voice from the voice output unit during a call, The function of the echo canceller is suppressed or suppressed for a predetermined time after the silent state is resolved.

Further, the call device according to the present invention transmits the voice input from the voice input unit to the counterpart device, receives the voice transmitted from the counterpart device, outputs the voice from the voice output unit, and outputs the voice output. Is a call device having an echo canceller function for reducing echo due to received voice received by the voice input unit of the other party's device, when the call is started , An echo canceller function suppression instruction is provided to instruct to temporarily suppress the function of the echo canceller provided in the device of the other party . In addition, when a silent state occurs in the voice from the voice output unit during a call, the calling device according to the present invention is configured such that when the silent state is resolved , the calling partner device An echo canceller function suppression instruction is provided to instruct to temporarily suppress the function of the echo canceller provided in the system.

  With the above-described configuration, it is possible to appropriately confirm the arrival of voice in the entire conversation by automatically detecting that the conversation is interrupted during the conversation using the call device.

Further, the call device is characterized in that, after giving an echo canceller function suppression instruction to the call partner device, after a predetermined time has elapsed, an echo canceller function suppression release instruction is issued to the call partner device. Further, the call device is characterized in that an instruction to suppress echo canceller function including time data to be suppressed is given to the device of the call partner .

  According to another aspect of the present invention, the voice input from the voice input unit is transmitted to the other party's device, the voice transmitted from the other party's device is received and output from the voice output unit, and the voice output A speech device having an echo canceller function for reducing echoes transmitted to the counterpart device when the voice output from the speech input unit is input from the voice input unit, and suppressing the echo canceller function from the counterpart device Based on the instruction (including user instruction data), the function of the echo canceller is temporarily suppressed, and the other party's device includes an echo canceller that receives the output transmission voice and reduces the echo contained in the reception voice. Instructs the other party's device to temporarily suppress the echo canceller function of the other party's device. (Including user instruction data) and the echo canceller function of the communication device is temporarily suppressed or suppressed on the counterpart device. This is characterized in that no instruction is given.

  Also, the voice input from the voice input unit is transmitted to the other party's device, the voice transmitted from the other party's device is received and output from the voice output unit, and the voice output from the voice output unit is The function of the echo canceller provided in the other party's device is added to the other party's device against the other party's device that has an echo canceller function that reduces echo due to the received voice received by the voice input unit of the other party's device. An echo canceller function suppression instruction (user instruction data) for instructing temporary suppression is issued, and an instruction is given to the counterpart device to temporarily suppress or suppress the echo canceller function of the counterpart device. During this period, the function of the echo canceller of the communication apparatus is not suppressed or suppressed.

  As a result, it is possible to prevent a loop phenomenon between voice communication devices, which occurs when the echo cancellation devices provided in both communication devices are simultaneously suppressed, and to confirm the transmission of the call.

  According to the present invention, since the voice of the caller can be confirmed by the caller's call device as the sound output from the caller of the other party, the user's voice is surely reached and output to the caller of the other party. I understand that. Therefore, it is not necessary to confirm the arrival of voice to the other party, and a smooth conversation can be performed. In addition, since confirmation by sound is possible, it is effective even for a communication device that does not include a display device.

  Hereinafter, a call device according to an embodiment of the present invention will be described with reference to the drawings. First, a call device according to a first embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating a configuration example of a call device according to the present embodiment. As shown in FIG. 1, the communication device 1 according to the present embodiment includes a microphone 5 and a speaker 6, and is provided with an echo cancellation device 3 for suppressing echoes against these. The echo cancellation device 3 prevents the conversation voice from looping. The call device 1 further includes a call control device 7. The call control device 7 performs a call origination / incoming call, data transmission / reception to the network, and other necessary control. Further, a switch 2 is provided as a user input means. The instruction data transmission device 4 transmits instruction data to the other party communication device (not shown) via the call control device 7 and the network 8 by the input of the switch 2.

  FIG. 8 is a diagram illustrating a configuration example of instruction data. As shown in FIG. 8, the instruction data 10 includes “instruction ID” 10a and “hold data” 10b. The “instruction ID” 10a is an ID that designates whether the echo cancellation apparatus 3 is to be enabled or disabled. “Hold data” 10b is data indicating a time during which the echo cancellation apparatus 3 is held invalid. The “instruction ID” 10a takes the values shown in Table 1, and the control is determined by each value. Table 1 is a table showing instructions corresponding to instruction ID values included in the instruction data.

  As shown in Table 1, the content of the value 01 invalidates the time of the Hold data. A value of 02 enables the function of the echo canceller device. A value of 03 disables the function of the echo canceller device. Table 2 is a table showing the meaning of the HOLD data included in the instruction data.

  “Hold data” can take the values shown in Table 2. When “Hold data” is “0”, it indicates a time set in advance in the communication device itself. When “Hold data” is a value other than “0”, a time corresponding to the value is indicated. When the value of “Hold data” is “1” to “n”, the time from T1 to Tn corresponding to the table shown in Table 3 is shown. For example, when the value of “Hold data” is “4”, as can be seen from Table 3, the time is T4 seconds.

  Table 4 shows an example of the time corresponding to the value of “HOLD data”. For example, when the value of “Hold data” is “6”, the value “2.0” corresponding to “6” is selected from the correspondence table shown in Table 4 and the corresponding time is 2 seconds.

  Returning to FIG. 1, when the echo cancellation control means 9 receives the instruction data, the echo cancellation control means 9 controls the echo cancellation apparatus 3 to be invalid according to the contents of the instruction data.

  Such processing will be described in detail based on the flowchart shown in FIG. When the process is started, the echo cancellation control means 9 first checks the “instruction ID” from the received instruction data 10 and extracts the value of the instruction ID (step S1). Next, it is determined whether or not the value of “instruction ID” is “1” (step S2). If the “instruction ID” is “1” (Yes), the process proceeds to step S3. If it is not “1” (No), the process proceeds to step S4. In step S3, "Hold data" is checked from the received instruction data 10 and the value is extracted. Next, it is determined whether or not the value of “Hold data” is “0” (step S5). If the value of “Hold data” is “0” (Yes), the process proceeds to step S7. If the value of “Hold data” is not “0” (No), the process proceeds to step S6.

  In step S6, control is performed so as to invalidate the echo canceling apparatus 3 for a time corresponding to the table shown in Table 3 described above from the value of “Hold data”. Further, here, the echo canceling apparatus 3 may be controlled to be invalidated for a time of a value obtained by multiplying a value of “Hold data” by a coefficient. For example, when the coefficient is set to 0.1, the control time can be set to 0.1 seconds. By using the table shown in Table 3, it is possible to specify a time other than a fixed interval. An example is shown in Table 4. As shown in Table 4, the time can be gradually increased.

  In step S7, control is performed so that the echo canceling apparatus 3 is invalidated for a time set in advance in the communication apparatus 1 itself. In step S8, the echo canceling apparatus 3 that has been disabled (including suppression or suppression) is effectively controlled. In the case of suppression, it is preferable to provide an adjustment function for adjusting the degree. In step S4, it is determined whether or not the value of “instruction ID” is “2” (step S4). If the value of “instruction ID” is “2”, the process proceeds to step S8. If the value of “instruction ID” is not “2”, the process proceeds to step S9. In step S9, it is determined whether or not the value of “instruction ID” is “3”. If the value of “instruction ID” is “3”, the process proceeds to step S10. If the value of “instruction ID” is not “3”, the process ends (END). When the process proceeds to step S10, control is performed so that the echo canceling apparatus 3 is invalidated indefinitely.

  In FIG. 3, the other party can be seen. This indicates that the present embodiment can also be used for a communication device using video such as a video conference. Based on the flow of the above processing, the telephone device according to the embodiment of the present invention will be described in detail with reference to FIG. First, when the caller starts speaking, the caller (speaker side) 18a presses the switch 2 to speak (i). When the switch 2 is pressed, the user instruction transmission device 4 transmits user instruction data 10 to the device of the other party. At the same time, the voice of the caller is also transmitted through the call control device 7 (ii).

  The user instruction data 10 is received by the echo cancellation control means 9 of the other party's device, and this echo cancellation control means 9 controls the echo cancellation device 3 according to the flowchart shown in FIG. At this time, the transmitted audio data is output from the speaker 6, and the audio is input to the microphone 5 (iii).

  As shown in FIG. 2, normally, since the sneak sound (echo) is suppressed by the echo canceling device 3, it is not transmitted to the speaker side. In the present embodiment, since the echo cancellation apparatus 3 are disabled a predetermined period by the echo canceling control means 9, if the part of speech (conversation "Hello.", For example, a part " Kon ") returns as an echo (iv). In this way, by configuring so that only a part of the sound is returned as an echo, the caller can check whether his / her voice has arrived at the terminal on the other side (v).

  FIG. 2 is a diagram illustrating a state during normal conversation, and corresponds to FIG. 3. As shown in Fig. 2, even in a system such as a TV phone where the images can be seen from each other, even if the images are connected and it is known that they can see each other, it is necessary to judge whether the sound has reached the other party properly. Is difficult. Here, instead of controlling the echo cancellation apparatus 3 to be invalidated for the time included in the instruction data 10, it is also possible to control the echo cancellation apparatus 3 to be invalidated only while the caller is pressing the switch 2. it can.

  For example, as shown in FIG. 12 and Table 1, the transmission device 4 transmits instruction data 16 (FIG. 12B) indicating that the operation of the echo cancellation device 3 is invalidated only when the switch 2 is pressed. When the operation of pressing the switch 2 is released, the instruction data 17 (FIG. 12C) for canceling the invalidation of the operation of the echo canceling device 3 may be transmitted. Similarly, when receiving the instruction data for canceling the invalidation, the echo cancellation control means 9 cancels the invalidation of the echo cancellation device 3 according to the flowchart of FIG. With this configuration, it is possible to control the echo cancellation function only while the caller is pressing the switch 2.

  As described above, according to the calling device according to the present embodiment, the echo canceling function is provided, and the operation of the echo canceling function and the cancellation thereof can be performed as appropriate. By intentionally echoing, there is an advantage that the influence of the echo can be reduced and the reaction of the other party can be estimated.

  Next, a call device according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 7 is a functional block diagram showing a configuration example of the call device according to the present embodiment. The call device shown in FIG. 7 includes a silent state detection device 11 instead of the switch 2 in the call device shown in FIG. As shown in FIG. 4, the silence detection device 11 has a function of detecting a moment A at which a silence state (silence period) for a predetermined time or more that occurs between conversations between the caller A and the caller B is eliminated. Yes. In FIG. 4, when the caller A utters “So, ...” after the silence period continues, the first time point when the utterance is made is detected. The instruction data transmission device 4 transmits instruction data when the silent state detection device 11 detects the moment A instead of the switch 2 described above. More specifically, as shown in FIG. 4, it is assumed that the conversation between the caller A and the caller B is temporarily interrupted and the silent state of the caller A continues for 6 seconds. Thereafter, caller A starts talking again. At this time, if the silent state setting of the silent state detecting device 11 is 5 seconds, the silent state detecting device 11 detects when the caller A starts speaking and requests transmission of the instruction data to the instruction data transmitting device 4.

  The instruction data transmitting device 4 transmits instruction data for invalidating the echo canceling device 3 of the device on the other end of the call according to the received transmission request. After the instruction data is transmitted and a predetermined time elapses, the instruction data transmission device 4 transmits the instruction data 17 for enabling the echo canceling device 3 of the other party's device.

  Thus, even if the caller does not give an instruction for transmitting the instruction data by the input means, it is possible to confirm the transmission of the voice based on the situation of the conversation.

  Usually, in order to detect silence, it is necessary to detect a sound state first, then change to a silence state and continue that state. Such a detection method cannot be detected immediately after the start of a call. Therefore, immediately after the start of the call, the silent state detection device 11 is set in advance as a special state. The special state is a state in which a silent state is detected. By setting in this way, the instruction data can be transmitted with the first conversation voice at the start of the call.

  Next, a call device according to a third embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 15, the call device according to the present embodiment is configured to transmit the detection result of the silent state detection device 11 to the echo cancellation control means 9. As described in the second embodiment, the silent state detection device 11 detects a moment when the silent state is canceled for a certain period of time or longer. In this embodiment, the call start after the silent state is started. The detection result is transmitted to the echo cancellation control means 9 instead of the instruction data transmission device 4. At this time, the silence detection target is not the voice from the voice input unit (microphone 5) of the call device but the voice from the other party.

Here, it is assumed that the conversation is started after the voice from the call partner is interrupted and a silent state continues for 6 seconds, for example. Assuming that the predetermined time is set to 5 seconds, this condition is satisfied. Therefore, when the other party starts talking after 6 seconds, the silent state detection device 11 outputs the result to the echo cancellation control means 9. When the talk starts after 4 seconds, since the talk has started in a time shorter than the set time of 5 seconds, the silent state detection device 11 does not output the detection result to the echo cancellation control means 9. This detection result may have the same configuration as the instruction data 10.

  Next, as described in the second embodiment, the echo cancellation control unit 9 receives the instruction data 10 and controls the echo cancellation device 3 instead of receiving the instruction data 10 and uses the detection result from the silent state detection device 11 as a result of detection. Based on this, the echo cancellation apparatus 3 is controlled. Here, according to the detection result from the silent state detection device 11, the echo cancellation control means 9 performs control so as to disable the echo cancellation device 3, and performs control disabled after the specified time included in the detection result. To release.

  Further, as described in the second embodiment, if the silent state detection device 11 can perform the detection operation even immediately after the start of the call, the echo canceling device 3 can be controlled immediately after the start of the call. Become.

  With this configuration, the echo canceling apparatus 3 can be controlled without input by the caller, and the conversation voice can also be input on the call partner side without input to control the echo canceling function. Can be confirmed.

  Next, a call device according to a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 6 is a diagram illustrating a configuration example of a call device in which both terminals have the configuration described in the first embodiment. For example, it is assumed that the caller A and the caller B simultaneously press the switch 2 provided in each call device 1. In this case, the user instruction data 10 is transmitted toward the caller B side, and the user instruction data 14 (FIG. 12A) is transmitted toward the caller A side. The echo cancellation control means 9 that has received the user instruction data 10 and 14 in each communication device performs control so that the echo cancellation device 3 becomes invalid. When the caller A starts speaking in this state, the voice loops and it is difficult to have a conversation. Means for avoiding this will be described in detail below.

  When the call device 1 receives the instruction data 14 (FIG. 12 (a)) from the other party's device, the echo cancel control means 9 adds the processing based on the flowchart shown in FIG. 9 to the flowchart shown in FIG. Based on the processing. The echo cancellation control means 9 determines whether or not instruction data has been received (step S11). If received (Yes), the process proceeds to step S12. If not received, the process is terminated. Here, since it is received, the process proceeds to step S12.

Next, it is determined whether or not the value of the received instruction data is “1” (step S12). If the value of the received instruction data is “1”, the instruction is invalidated, and the process proceeds to step S13. When the value of the received instruction data is not “1”, the process is terminated. In step S13, the transmission prohibition flag is set to “1”. Then, in step S14, it fetches the value of "H old data" instruction data 14 received (FIG. 12 (a)). Here, a value of “4” is obtained. In step S15, the process waits for the time obtained in step S14. Here, since the value obtained in step S14 is “4”, the process waits for T 4 seconds. In step S16, the transmission prohibition flag set to “1” in step S13 is cleared to “0”. Thereby, the process is terminated.

  Here, when the instruction data 14 is received from the other party, a transmission prohibition flag is set for a certain period as described above. During this time, the function of the echo cancel device 3 of the caller's call device is disabled. In this state, even if the caller tries to control the other party's device by the switch 2, the instruction data transmission device 4 does not transmit because the process is performed according to the flowchart shown in FIG. That is, it is determined in step S17 whether or not a transmission prohibition flag is set. If it is not set (No), instruction data is created and transmitted in step S18, and the process ends (end). If the transmission prohibition flag is set in step S17 (Yes), the process proceeds to step S19 and ends without transmitting the instruction data (end).

  By configuring as described above, there is an advantage that the echo canceling functions of the respective communication devices can be prevented from being invalidated at the same time. In addition, to avoid the case of receiving instruction data for disabling your own echo cancellation function from the other party after sending the instruction data to disable the echo cancellation function to the other party, devise the following configuration did.

That is, the instruction data transmission device 4 performs the process according to the flowchart shown in FIG. 13 simultaneously with the process of transmitting the instruction data. That is, when the instruction data transmission device 4 transmits the instruction data 14 (FIG. 12 (a)), processing according to the flowchart of FIG. 13 is performed. As shown in FIG. 13, in step S21, it is determined whether or not instruction data has been transmitted. Here, since instruction data instructing invalidity is transmitted, the process proceeds to step S22. If the instruction data has not been transmitted, the process is terminated. In step S22, it is determined whether or not the transmitted instruction data indicates invalidity. Here, since the instruction data 14 is “1”, the instruction data 14 is instructed to be invalid, and the process proceeds to step S23. If the instruction data 14 (FIG. 12 (a)) is not “1”, the process is terminated. In step S23, the control prohibition flag is set to “1”. In step S24, the value of “hold data” in the instruction data is extracted. Here, since the value of “hold data” of the instruction data 14 is “4”, “4” is obtained. Thereafter, the process proceeds to step S25. In step S25, a time is waited for a time corresponding to the value obtained in step S24. Here, since the value obtained in step S24 is “4”, T waits for 4 seconds. Thereafter, the process proceeds to step S26. In step S26, the control prohibition flag set to “1” in step S23 is cleared to “0”.

  While this control prohibition flag is set to “1”, even if the instruction data 14 for invalidating the echo canceling device 3 is received from the other party's device, the echo canceling control means 9 is shown in the flowchart of FIG. The control for invalidating the echo canceling device 3 is not performed by the processing along the line.

  The flowchart shown in FIG. 14 is obtained by adding steps S30 and S31 to the flowchart shown in FIG. Since other processes are all the same, description thereof is omitted. In step S30 and step S31, it is determined whether or not the above-described control prohibition flag is “1”. If the control prohibition flag is “0”, the process is continued. If it is “1”, the entire process is terminated.

  In this embodiment, since this process is performed when the control prohibition flag is “1”, the determination is made in step S30 and the process ends. Accordingly, the echo cancellation control means 9 does not perform control for invalidating the echo cancellation device 3.

  With the configuration as described above, the echo cancellation devices 3 of both communication devices are controlled so as not to be invalidated simultaneously.

  Next, a call device according to a fifth embodiment of the present invention will be described with reference to the drawings. The call device 1 shown in FIG. 1 may be configured to use a specific sound instead of a human voice when confirming the arrival of voice. For example, the communication device 1 includes a mechanical sound generator (not shown). The specific sound generated by the mechanical sound generator includes a sound that can be generated mechanically, such as a 1 kHz sine wave or noise in a certain band. In addition, a reproduction sound of a sound recorded in advance can be targeted.

This will be described in more detail below. Similar to the embodiment of the first implementation, the caller presses a switch 2 for confirmation. In conjunction with the switch 2, the mechanical sound generator generates a specific sound and sends the sound to the other party via the call control device 7. At the same time, the user instruction data 10 is transmitted as in the first embodiment. This specific sound is sent back as an echo from the other party in the same manner as the voice of the caller in the first embodiment, and is output from the speaker of the caller. The voice arrival can be confirmed by the caller confirming this sound.

Further, a specific sound detection device that detects the specific sound is provided in the communication device 1. Thus, the mechanical noise (specific sound) generator to the call equipment, by providing a specific sound detection device, it is possible to detect a particular sound returned mechanically echo. Here, by providing a display device for the detection result of the detection device, the caller can confirm the display without hearing a specific sound, and can confirm the arrival of the voice. Here, the display device can perform display on the liquid crystal screen such as an LED light display or an icon.

  Furthermore, as a modified example, the communication device 1 has a function capable of controlling voice output by an operation from the other party. A device for detecting the volume of the specific sound can be provided in the communication device 1 there. According to this modification, as in the example described in the first embodiment, the sound output from the sound volume detection device is controlled based on the result of the sound volume detection device based on the sound returned as an echo, and the optimal sound volume is set. It becomes possible to. In this case, the same effect can be obtained not by controlling the sound output but also by controlling the sensitivity of the sound input.

  As described above, according to the call device according to each embodiment of the present invention, the caller's voice can be confirmed by the caller's call device as the sound output from the caller's call device. It is possible to know that his / her voice has arrived at the communication device and is being output. Therefore, it is not necessary to confirm whether or not the voice has reached the other party, and a smooth conversation can be performed. Further, since confirmation by sound is possible, it can also be used in a call device that does not include a display device.

  The present invention can be applied to a mobile phone, a general phone, a video phone, and other electronic devices involving conversation.

It is a figure which shows the structural example of the telephone apparatus by the 1st Embodiment of this invention. It is a figure which shows the operation | movement of echo cancellation in the telephone call via a network. It is a figure which shows the operation | movement of echo cancellation in the telephone call via a network. It is a figure which shows the silence period in conversation. It is a figure which shows a mode that instruction data are transmitted to the other party communication apparatus via a network. It is a figure which shows a mode that instruction data are transmitted to the other party communication apparatus via a network. It is a figure which shows the structural example of the telephone apparatus by the 2nd Embodiment of this invention. It is a figure which shows the structural example of instruction data. It is a flowchart figure which shows the flow of the process which controls an echo cancellation apparatus. It is a flowchart figure which shows the flow of the process which controls an echo cancellation apparatus. It is a flowchart figure which shows the flow of the process which transmits instruction data. It is a figure which shows the structural example of instruction data. It is a flowchart figure which shows the flow of the process which transmits instruction data. It is a flowchart figure which shows the flow of the process which transmits instruction data. It is a figure which shows the structural example of the telephone apparatus by the 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Communication terminal 2 ... Switch 3 ... Echo cancellation apparatus 4 ... User instruction | indication data transmission apparatus 5 ... Microphone 6 ... Speaker 7 ... Call control apparatus 8 ... Network 9 ... Echo cancellation control apparatus 10 ... User instruction data 11 ... Silence detection apparatus 14 User instruction data 15 Voice data 16 User instruction data 17 User instruction data 18 TV screen

Claims (9)

The voice input from the voice input unit is transmitted to the other party's device, the voice transmitted from the other party's device is received and output from the voice output unit, and the voice output from the voice output unit is the voice input A communication device having an echo canceller function for reducing echoes transmitted to the device of the other party of the call by being input from the unit,
A call device characterized in that the function of the echo canceller is suppressed or suppressed for a predetermined time after a call is started. The voice input from the voice input unit is transmitted to the other party's device, the voice transmitted from the other party's device is received and output from the voice output unit, and the voice output from the voice output unit is the voice input A communication device having an echo canceller function for reducing echoes transmitted to the device of the other party of the call by being input from the unit,
When a silent state occurs in the voice from the voice output unit during a call, the call device is characterized in that the function of the echo canceller is suppressed or suppressed for a predetermined time after the silent state is resolved. The voice input from the voice input unit is transmitted to the other party's device, the voice transmitted from the other party's device is received and output from the voice output unit, and the voice output from the voice output unit is the other party A call device having an echo canceller function for reducing echo due to received voice received by the voice input unit of the device,
During a call initiated, the relative call partner devices, vent talking partner device through talking device you and performs an echo canceller function inhibition instruction that instructs to temporarily inhibit the function of the echo canceller having . The voice input from the voice input unit is transmitted to the other party's device, the voice transmitted from the other party's device is received and output from the voice output unit, and the voice output from the voice output unit is the other party A call device having an echo canceller function for reducing echo due to received voice received by the voice input unit of the device,
When a silent state occurs in the voice from the voice output unit during a call, when the silent state is resolved , the function of the echo canceller provided in the counterpart device is temporarily provided to the counterpart device. passing story apparatus you and performs an echo canceller function inhibition instruction that instructs to suppress the. 5. The call device according to claim 3 , wherein an echo canceller function suppression release instruction is issued to the call partner device after a predetermined time has elapsed after the echo canceller function suppression instruction is issued to the call partner device. The echo canceller function inhibition instruction, the communication apparatus according to arresting or suppressing the time data to the device of the other party to claim 3 or 4, characterized in including it. The call device according to any one of claims 1 to 6, further comprising an adjusting unit that adjusts a degree of suppression. The voice input from the voice input unit is transmitted to the other party's device, the voice transmitted from the other party's device is received and output from the voice output unit, and the voice output from the voice output unit is the other party For the other party's device that has an echo canceller function that reduces echo due to the received voice received by the voice input unit of
Based on the echo canceller function suppression instruction including user instruction data from the other party device, temporarily suppress the function of the echo canceller,
The other party's device is equipped with an echo canceller that reduces the echo contained in the received audio when the output transmission audio is input,
Instruct the other party's device to suppress echo canceller function including user instruction data that instructs to temporarily suppress the echo canceller function of the other party's device,
While arresting or suppressing the function of the echo canceller of the communication talking device, the device of the communication partner, is not performed temporarily arresting or inhibiting direct the functions of the echo canceller device is provided with a vent talking partner A call device characterized by that. The voice input from the voice input unit is transmitted to the other party's device, the voice transmitted from the other party's device is received and output from the voice output unit, and the voice output from the voice output unit is the voice input A communication device having an echo canceller function for reducing echoes transmitted to the device of the other party of the call by being input from the unit,
Based on the echo canceller function suppression instruction including the user instruction data from the other party device, temporarily suppress or suppress the function of the echo canceller,
The device of the other party is equipped with an echo canceller that reduces the echo contained in the received voice when the output transmission voice is input,
An instruction to inhibit echo canceller function including user instruction data for instructing the counterpart device to temporarily inhibit or suppress the function of the echo canceller included in the counterpart device,
The device of the communication partner, while performing an instruction to temporarily inhibit the function of the echo canceller device is provided with a vent talking partner, not to suppress or inhibit the function of the echo canceller of the communication talking device A featured telephone device.

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