公开(公告)号：US20130131852A1

公开(公告)日：2013-05-23

申请号：US13745480

申请日：2013-01-18

Applicant: Apple Inc.

Inventor： David G. Conroy ,  Steve Schell ,  Barry Corlett ,  Neil D. Warren ,  Aram Lindahl

IPC: G06F17/00

CPC classification number: G06F17/00 ,  G06F1/3203 ,  G06F1/3237 ,  G06F1/3287 ,  G06F1/3293 ,  G06F13/124 ,  G06F21/10 ,  G06F21/71 ,  G06F2221/0735 ,  Y02D10/122 ,  Y02D10/128 ,  Y02D10/171 ,  Y02D50/20

Abstract: A media processing system and device with improved power usage characteristics, improved audio functionality and improved media security is provided. Embodiments of the media processing system include an audio processing subsystem that operates independently of the host processor for long periods of time, allowing the host processor to enter a low power state while the audio data is being processed. Other aspects of the media processing system provide for enhanced audio effects such as mixing stored audio samples into real-time telephone audio. Still other aspects of the media processing system provide for improved media security due to the isolation of decrypted audio data from the host processor.

Abstract translation: 提供了具有改进的功率使用特性，改进的音频功能和改进的媒体安全性的媒体处理系统和设备。 媒体处理系统的实施例包括音频处理子系统，其独立于主机处理器长时间运行，允许主机处理器在处理音频数据时进入低功率状态。 媒体处理系统的其他方面提供增强的音频效果，例如将存储的音频样本混合成实时电话音频。 媒体处理系统的其它方面由于从主机处理器隔离解密的音频数据而提供改善的媒体安全性。

公开(公告)号：US08713214B2

公开(公告)日：2014-04-29

申请号：US13745480

申请日：2013-01-18

Applicant: Apple Inc.

Inventor： David G. Conroy ,  Steve Schell ,  Barry J. Corlett ,  Neil D. Warren ,  Aram Lindahl

IPC: G06F13/28 ,  G06K9/54

CPC classification number: G06F17/00 ,  G06F1/3203 ,  G06F1/3237 ,  G06F1/3287 ,  G06F1/3293 ,  G06F13/124 ,  G06F21/10 ,  G06F21/71 ,  G06F2221/0735 ,  Y02D10/122 ,  Y02D10/128 ,  Y02D10/171 ,  Y02D50/20

Abstract: A media processing system and device with improved power usage characteristics, improved audio functionality and improved media security is provided. Embodiments of the media processing system include an audio processing subsystem that operates independently of the host processor for long periods of time, allowing the host processor to enter a low power state while the audio data is being processed. Other aspects of the media processing system provide for enhanced audio effects such as mixing stored audio samples into real-time telephone audio. Still other aspects of the media processing system provide for improved media security due to the isolation of decrypted audio data from the host processor.

Abstract translation: 提供了具有改进的功率使用特性，改进的音频功能和改进的媒体安全性的媒体处理系统和设备。 媒体处理系统的实施例包括音频处理子系统，其独立于主机处理器长时间运行，允许主机处理器在处理音频数据时进入低功率状态。 媒体处理系统的其他方面提供增强的音频效果，例如将存储的音频样本混合成实时电话音频。 媒体处理系统的其它方面由于从主机处理器隔离解密的音频数据而提供改进的媒体安全性。

公开(公告)号：US20130293558A1

公开(公告)日：2013-11-07

申请号：US13875215

申请日：2013-05-01

Applicant: APPLE INC.

Inventor： Brett D. George ,  Changki Min ,  David A. Leech ,  Matthew X. Mora ,  Neil D. Warren ,  Rajabali M. Koduri ,  Ronald N. Isaac

IPC: G06T1/20

CPC classification number: G06T1/20 ,  G10K2210/3042

Abstract: Methods and apparatus for processing media signals. In one embodiment, a data processing device processes fixed and variable rate data using a first and second processing unit. The processing comprises real-time processing of audio/video signals by a graphics processing unit (GPU) and/or central processing unit (CPU). The processing units process data efficiently by establishing one processor as always processing variable rate data, and using one or more schemes for determining processor will process fixed rate data. A shared memory enables the processors to communicate with one another in order to determine which will process the fixed rate data. In one scheme for determining which of the processors will process the fixed rate data the second processor need merely be unlocked. In another embodiment, the second processor must be unlocked and immediately available.

Abstract translation: 用于处理媒体信号的方法和装置。 在一个实施例中，数据处理设备使用第一和第二处理单元处理固定和可变速率数据。 该处理包括由图形处理单元（GPU）和/或中央处理单元（CPU）对音频/视频信号的实时处理。 处理单元通过一如既往处理可变速率数据建立一个处理器，并且使用一个或多个用于确定处理器的方案将处理固定速率数据来有效地处理数据。 共享存储器使处理器能够彼此通信，以便确定哪个处理固定速率数据。 在用于确定哪些处理器将处理固定速率数据的一种方案中，第二处理器仅需要解锁。 在另一个实施例中，第二处理器必须被解锁并立即可用。