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    DELAY TECHNIQUES IN ACTIVE NOISE CANCELLATION CIRCUITS OR OTHER CIRCUITS THAT PERFORM FILTERING OF DECIMATED COEFFICIENTS
    1.
    发明授权
    DELAY TECHNIQUES IN ACTIVE NOISE CANCELLATION CIRCUITS OR OTHER CIRCUITS THAT PERFORM FILTERING OF DECIMATED COEFFICIENTS 有权

    公开(公告)号：EP2502225B1

    公开(公告)日：2018-07-04

    申请号：EP10776471.4

    申请日：2010-10-26

    申请人： Qualcomm Incorporated

    发明人： CHAN, Kwokleung ,  LI, Ren ,  PARK, Hyun, Jin

    IPC分类号： G10K11/178

    CPC分类号： G10K11/178 ,  G10K2210/3051

    摘要： This disclosure describes circuit configurations that may be used for active noise cancellation in the digital domain. In particular, this disclosure proposes the use a down sample unit and an up sample unit, rather than memory-based delay circuits, to achieve one or more desired delays in digital adaptive noise cancellation circuits or other circuits that use delay for signal processing. The delay achieved by the down sample unit and the up sample unit may be tunable so as to allow flexibility in producing the necessary delay for different active noise cancellation circuit configurations. Many different adaptive noise cancellation circuit configurations are discussed, and the techniques may also be useful for other types of circuits, such as low-latency equalization circuits.

    DELAY TECHNIQUES IN ACTIVE NOISE CANCELLATION CIRCUITS OR OTHER CIRCUITS THAT PERFORM FILTERING OF DECIMATED COEFFICIENTS
    3.
    发明公开
    DELAY TECHNIQUES IN ACTIVE NOISE CANCELLATION CIRCUITS OR OTHER CIRCUITS THAT PERFORM FILTERING OF DECIMATED COEFFICIENTS 有权
    延时程序有源噪声抑制电路或其他电路具有过滤抽取系数

    公开(公告)号：EP2502225A1

    公开(公告)日：2012-09-26

    申请号：EP10776471.4

    申请日：2010-10-26

    申请人： Qualcomm Incorporated

    发明人： CHAN, Kwokleung ,  LI, Ren ,  PARK, Hyun, Jin

    IPC分类号： G10K11/178

    CPC分类号： G10K11/178 ,  G10K2210/3051

    摘要： This disclosure describes circuit configurations that may be used for active noise cancellation in the digital domain. In particular, this disclosure proposes the use a down sample unit and an up sample unit, rather than memory-based delay circuits, to achieve one or more desired delays in digital adaptive noise cancellation circuits or other circuits that use delay for signal processing. The delay achieved by the down sample unit and the up sample unit may be tunable so as to allow flexibility in producing the necessary delay for different active noise cancellation circuit configurations. Many different adaptive noise cancellation circuit configurations are discussed, and the techniques may also be useful for other types of circuits, such as low-latency equalization circuits.

    DEVICE FOR GENERATING AUDIO OUTPUT
    4.
    发明公开
    DEVICE FOR GENERATING AUDIO OUTPUT 审中-公开

    公开(公告)号：EP3720106A1

    公开(公告)日：2020-10-07

    申请号：EP20161929.3

    申请日：2017-03-30

    申请人： QUALCOMM Incorporated

    发明人： KIM, Lae-Hoon ,  PARK, Hyun, Jin ,  VISSER, Erik ,  PERI, Raghuveer

    IPC分类号： H04M1/60 ,  H04R5/00 ,  H04R5/04 ,  H04R3/04 ,  H04S7/00 ,  H04S3/00 ,  H04R1/10 ,  H04R3/00 ,  H04R5/033

    摘要： A headset device includes a first earpiece configured to receive a reference sound and to generate a first reference audio signal based on the reference sound. The headset device further includes a second earpiece configured to receive the reference sound and to generate a second reference audio signal based on the reference sound. The headset device further includes a controller coupled to the first earpiece and to the second earpiece. The controller is configured to generate a first signal and a second signal based on a phase relationship between the first reference audio signal and the second reference audio signal. The controller is further configured to output the first signal to the first earpiece and output the second signal to the second earpiece.

    DEVICE FOR GENERATING AUDIO OUTPUT
    6.
    发明公开
    DEVICE FOR GENERATING AUDIO OUTPUT 审中-公开

    公开(公告)号：EP3459231A1

    公开(公告)日：2019-03-27

    申请号：EP17718191.4

    申请日：2017-03-30

    申请人： Qualcomm Incorporated

    发明人： KIM, Lae-Hoon ,  PARK, Hyun, Jin ,  VISSER, Erik ,  PERI, Raghuveer

    IPC分类号： H04M1/60 ,  H04R5/00 ,  H04R5/04 ,  H04R3/04 ,  H04S7/00 ,  H04S3/00 ,  H04R1/10 ,  H04R3/00 ,  H04R5/033

    摘要： A headset device includes a first earpiece configured to receive a reference sound and to generate a first reference audio signal based on the reference sound. The headset device further includes a second earpiece configured to receive the reference sound and to generate a second reference audio signal based on the reference sound. The headset device further includes a controller coupled to the first earpiece and to the second earpiece. The controller is configured to generate a first signal and a second signal based on a phase relationship between the first reference audio signal and the second reference audio signal. The controller is further configured to output the first signal to the first earpiece and output the second signal to the second earpiece.