公开(公告)号：US12107552B2

公开(公告)日：2024-10-01

申请号：US17448244

申请日：2021-09-21

Applicant: QUALCOMM Incorporated

Inventor： Earl Schreyer ,  Sherif Galal ,  Sang-Uk Ryu ,  Hui-ya Liao Nelson ,  Subbarao Surendra Chakkirala ,  Shreyas Srikanth Payal

IPC: G06K7/10 ,  H03F1/02 ,  H03F3/24

CPC classification number: H03F1/0227 ,  H03F3/245 ,  H03F2200/03 ,  H03F2200/462 ,  H03F2200/468

Abstract: A method includes receiving first data associated with a first power amplifier and second data associated with a second power amplifier. The method also includes generating a first amplitude limiting signal having gain parameters that are based on the first data and the second data. The first data includes at least one of a temperature measurement associated with the first power amplifier, a supply voltage measurement associated with the first power amplifier, a load resistance associated with the first power amplifier, or a gain associated with the first power amplifier. The method further includes modifying an audio signal based at least in part on the first amplitude limiting signal to generate a first gain-adjusted audio signal. The method also includes providing a first output audio signal to the first power amplifier for amplification. The first output audio signal is based at least in part on the first gain-adjusted audio signal.

公开(公告)号：US11962990B2

公开(公告)日：2024-04-16

申请号：US17498707

申请日：2021-10-11

Applicant: QUALCOMM Incorporated

Inventor： Dipanjan Sen ,  Sang-Uk Ryu

IPC: G10L19/008 ,  G06F17/16 ,  G10L19/002 ,  G10L19/02 ,  G10L19/038 ,  G10L19/06 ,  G10L19/16 ,  G10L19/20 ,  G10L25/18 ,  H04S5/00 ,  H04S7/00 ,  G10L19/00

CPC classification number: H04S5/005 ,  G06F17/16 ,  G10L19/002 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/038 ,  G10L19/06 ,  G10L19/167 ,  G10L19/20 ,  G10L25/18 ,  H04S7/30 ,  H04S7/304 ,  H04S7/40 ,  G10L2019/0001 ,  G10L2019/0005 ,  H04R2205/021 ,  H04S2400/01 ,  H04S2400/15 ,  H04S2420/01 ,  H04S2420/03 ,  H04S2420/11

Abstract: In general, disclosed is a device that includes one or more processors, coupled to the memory, configured to perform an energy analysis with respect to one or more audio objects, in the ambisonics domain, in the first time segment. The one or more processors are also configured to perform a similarity measure between the one or more audio objects, in the ambisonics domain, in the first time segment, and the one or more audio objects, in the ambisonics domain, in the second time segment. In addition, the one or more processors are configured to perform a reorder of the one or more audio objects, in the ambisonics domain, in the first time segment with the one or more audio objects, in the ambisonics domain, in the second time segment, to generate one or more reordered audio objects in the first time segment.

公开(公告)号：US09305567B2

公开(公告)日：2016-04-05

申请号：US13827894

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Erik Visser ,  Lae-Hoon Kim ,  Jongwon Shin ,  Yinyi Guo ,  Sang-Uk Ryu ,  Andre Gustavo P. Schevciw

IPC: G10L21/0208 ,  G10L15/20 ,  G10L21/0316 ,  G10L25/93 ,  G10L21/0216

CPC classification number: G10L21/0208 ,  G10L15/20 ,  G10L21/0316 ,  G10L25/93 ,  G10L2021/02165

Abstract: A method for signal level matching by an electronic device is described. The method includes capturing a plurality of audio signals from a plurality of microphones. The method also includes determining a difference signal based on an inter-microphone subtraction. The difference signal includes multiple harmonics. The method also includes determining whether a harmonicity of the difference signal exceeds a harmonicity threshold. The method also includes preserving the harmonics to determine an envelope. The method further applies the envelope to a noise-suppressed signal.

Abstract translation: 描述了一种由电子设备进行信号电平匹配的方法。 该方法包括从多个麦克风中捕获多个音频信号。 该方法还包括基于麦克风间减法确定差分信号。 差分信号包括多个谐波。 该方法还包括确定差分信号的谐波是否超过谐波阈值。 该方法还包括保存谐波以确定信封。 该方法进一步将包络应用于噪声抑制信号。

公开(公告)号：US20140358563A1

公开(公告)日：2014-12-04

申请号：US14289522

申请日：2014-05-28

Applicant: QUALCOMM Incorporated

Inventor： Dipanjan Sen ,  Sang-Uk Ryu

IPC: G10L19/02 ,  G10L19/002

CPC classification number: H04S5/005 ,  G06F17/16 ,  G10L19/002 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/038 ,  G10L19/06 ,  G10L19/167 ,  G10L19/20 ,  G10L25/18 ,  G10L2019/0001 ,  G10L2019/0005 ,  H04R2205/021 ,  H04S7/30 ,  H04S7/304 ,  H04S7/40 ,  H04S2400/01 ,  H04S2400/15 ,  H04S2420/01 ,  H04S2420/03 ,  H04S2420/11

Abstract: In general, techniques are described for compressing decomposed representations of a sound field. A device comprising one or more processors may be configured to perform the techniques. The one or more processors may be configured to obtain a bitstream comprising a compressed version of a spatial component of a sound field, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients.

Abstract translation: 通常，描述了用于压缩声场的分解表示的技术。 包括一个或多个处理器的设备可以被配置为执行这些技术。 一个或多个处理器可以被配置为获得包括声场的空间分量的压缩版本的比特流，所述空间分量是通过相对于多个球谐函数执行基于矢量的合成而产生的。