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    SUPPRESSION OF ACOUSTIC FEEDBACK IN VOICE COMMUNICATIONS
    2.
    发明申请
    SUPPRESSION OF ACOUSTIC FEEDBACK IN VOICE COMMUNICATIONS 审中-公开
    声音反馈在语音通信中的抑制

    公开(公告)号：WO2007078557A3

    公开(公告)日：2007-09-13

    申请号：PCT/US2006046690

    申请日：2006-12-06

    Applicant: MICROSOFT CORP

    Inventor： ZHONG WEI ,  HE CHAO ,  KRANTZ ANTON W ,  LI QIN

    IPC: H04L12/28 ,  H04Q7/24

    CPC classification number: H04M9/08 ,  H04M1/20 ,  H04M1/2535 ,  H04M1/6033 ,  H04M9/082

    Abstract: Suppressing one or more frequency ranges of a signal prevents the occurrence of feedback in a voice data communications application. A system recognizes a frequency range in a signal where feedback occurs, or anticipates a frequency range where feedback is anticipated. The signal includes a signal the input system generates or that the output system renders. The system suppresses the signal in the frequency range by disregarding one or more sampling bits representing the frequency range, or by applying one or more filters to attenuate or eliminate the signal in the frequency range. The system may monitor the signal to identify feedback resulting in different or additional frequency ranges and suppress the signal in the different or additional frequency ranges to prevent feedback from occurring.

    Abstract translation: 抑制信号的一个或多个频率范围防止语音数据通信应用中出现反馈。 系统识别发生反馈的信号中的频率范围，或预期预期反馈的频率范围。 该信号包括输入系统生成的信号或输出系统呈现的信号。 系统通过忽略表示频率范围的一个或多个采样位，或通过应用一个或多个滤波器来衰减或消除频率范围中的信号来抑制频率范围中的信号。 系统可以监测信号以识别导致不同或附加频率范围的反馈，并且抑制不同或附加频率范围中的信号以防止反馈发生。

    3.
    发明专利
    未知

    公开(公告)号：BRPI0712228A2

    公开(公告)日：2012-01-17

    申请号：BRPI0712228

    申请日：2007-02-21

    Applicant: MICROSOFT CORP

    Inventor： MOORE TIM M ,  KUKOLECA DALIBOR ,  ZHONG WEI ,  BARKLEY WARREN V ,  LEVIN DANNY

    IPC: H04N7/14 ,  H04M11/06

    Abstract: A conference server may request a key frame from a conference participant in response to determining that the conference participant should become a most active participant, and the conference server may make the conference participant the most active participant in response to receiving the key frame from the conference participant.

    4.
    发明专利
    未知

    公开(公告)号：BRPI0618719A2

    公开(公告)日：2011-09-06

    申请号：BRPI0618719

    申请日：2006-12-07

    Applicant: MICROSOFT CORP

    Inventor： BARKLEY WARREN V ,  CRINON REGIS J ,  LIN CHIH-LUNG BRUCE ,  MOORE TIM M ,  ZHONG WEI ,  XIA MINGHUI JASON

    IPC: H04N7/24 ,  H04N19/89

    Abstract: Feedback and frame synchronization between media encoders and decoders is described. More particularly, the encoder can encode frames that are based on source content to be sent to the decoder. The encoder can determine whether the frame should be cached by the encoder and the decoder. If the frame is to be cached, the encoder can so indicate by encoding the frame with one or more cache control bits. The decoder can receive the frame from the decoder, and can examine the cache control bits to determine whether to cache the frame. The decoder can also decode the frame.

    INFRASTRUCTURE FOR ENABLING HIGH QUALITY REAL-TIME AUDIO
    7.
    发明公开
    INFRASTRUCTURE FOR ENABLING HIGH QUALITY REAL-TIME AUDIO 审中-公开
    基础设施实时音频的高品质

    公开(公告)号：EP1920562A4

    公开(公告)日：2012-12-26

    申请号：EP06827189

    申请日：2006-10-30

    Applicant: MICROSOFT CORP

    Inventor： HAN MU ,  BARKLEY WARREN VINCENT ,  ZHONG WEI ,  PALL GURDEEP S

    IPC: H04L12/28 ,  H04L12/66 ,  H04L29/06 ,  H04M7/00

    CPC classification number: H04M7/0072 ,  H04L65/103 ,  H04M7/1225

    Abstract: Various technologies and techniques are disclosed that improve media communications. In one embodiment, a media server receives a media communication with a first quality from a personal computer with VoIP telephone capabilities. The media server translates the media (e.g., audio, visual, etc.) communication into a second quality, and forwards the media communication to a communication gateway. The translation to improve communications can also be done when receiving the media communication from the communication gateway for forwarding to the personal computer having VoIP telephone capability. In some embodiments, a media server sits in the communication channel between a personal computer with VoIP telephone capabilities and a communication gateway and is able to translate communications into codec protocols they each understand.

    8.
    发明专利
    未知

    公开(公告)号：BRPI0706212A2

    公开(公告)日：2011-03-15

    申请号：BRPI0706212

    申请日：2007-01-03

    Applicant: MICROSOFT CORP

    Inventor： KRANTZ ANTON W ,  KUKOLECA DALIBOR ,  ZHONG WEI ,  SHIEH GUO-WEI ,  YUAN ZONG ZONG ,  MOORE TIM M ,  LEVIN DANNY ,  VANBUSKIRK MICHAEL R

    IPC: G06F15/16 ,  G06F17/00

    Abstract: Systems, methods, and/or techniques ("tools") are described that sort speakers in a network-enabled conference. In some cases, this sorted list of speakers indicates which speaker is dominant. With this sorted list, a participant's communication device may provide context about the speakers. In some cases a participant's communication device has a display that presents real-time video of the speakers or other visual indicia, such as each or the most dominant speaker's name, picture, title, or location. These and other context about speakers may help participants better understand discussions in network-enabled conferences.

    9.
    发明专利
    未知

    公开(公告)号：DE602004004601T2

    公开(公告)日：2007-11-08

    申请号：DE602004004601

    申请日：2004-04-15

    Applicant: MICROSOFT CORP

    Inventor： TAYLOR JOHN ANTHONY ,  ZHONG WEI

    IPC: H04M3/56 ,  G06F15/16 ,  H04L12/18 ,  H04L69/40

    Abstract: A hello message (222) is sent to an inviting computer system (208). An inviting side link database (238) having inviting side state record indicating logical link of inviting system to joining computer system (206), is received from inviting computer system. A joining side link database (224) is updated for indicating that joining system is logically linked to inviting system in response to reception of database. The updated database is transmitted to inviting system. Independent claims are also included for the following: (1) membership information distribution program; (2) computer readable recorded medium storing membership information distribution program.

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