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Controlling multi-party communications

A technology for controlling signals and communication processing, applied in telephone communication, voice analysis, instruments, etc., which can solve problems such as increased use of network resources, increased processing burden, and excessive noise

Active Publication Date: 2012-07-04
MICROSOFT TECH LICENSING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the difficulty with this type of call is that each additional party introduces more noise to the session, also increases the use of network resources, and increases the processing burden due to mixing of additional data streams at the host terminal

Method used

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Examples

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Embodiment Construction

[0042] Discontinuous Transmission (DTX) is a technique in which the transmission of data is briefly suspended when no speech activity is detected in the incoming audio signal, ie when the signal contains only background noise. By reducing the average number of packets transmitted by a terminal, DTX increases the capacity and reduces interference in a VoIP communication system. In general, however, the use of DTX usually reduces the quality of the decoded output, because the gaps when no data is being sent need to be filled with artificially generated audio signals to give the listener the impression that the call is still ongoing. Typically, comfort noise (CN) is used to fill the lulls during periods of inactivity. The sending terminal may or may not send a small amount of auxiliary information, such as a regular low-frequency "Silence Insertion Descriptor" (SID). The SID characterizes the actual background noise at the location of the sending terminal. In the case where no ...

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Abstract

A first user terminal, host terminal, method and program. The first terminal comprises: a transceiver for communicating with a plurality of other user terminals over a communication network; and communications processing apparatus, coupled to the transceiver, and arranged to participate in a call with a selected number of the other user terminals via the transceiver and communication network, the call including transmission of a voice signal from the first user terminal. The communications processing apparatus is operable in a mode whereby it temporarily discontinues transmission of the voice signal in response to detecting less than a predetermined level of activity on said voice signal, and the communications processing apparatus is further configured to selectively enable that mode in dependence on the selected number of other user terminals in the call.

Description

technical field [0001] The present invention relates to controlling multiparty communications, for example, to reduce noise, reduce network resource consumption, and / or reduce processing burden on a host terminal. Background technique [0002] Some communication systems allow users of devices, such as personal computers, to communicate over a packet computer network, such as the Internet. Such communication systems include Voice over Internet Protocol ("VoIP") systems. These systems are advantageous to users because they are generally much less expensive than conventional landline telephone lines or mobile networks. This may be even more true for long-distance communications. In order to use a VoIP system, users install and execute client software on their equipment. The client software establishes the VoIP connection, and provides other functions, such as registration and authentication. In addition to voice communications, the client software can also establish connect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M3/56G10L11/02
CPCG10L25/78H04M2201/18H04M7/006G10L19/012H04M2250/62H04M3/56H04M3/568
Inventor 科恩·贝尔纳德·福斯朱莉安·施皮特卡亨里克·奥斯特伦卡斯滕·范德伯格·瑟恩森泽伦·斯卡克·延森
Owner MICROSOFT TECH LICENSING LLC
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