公开(公告)号：US20180139079A1

公开(公告)日：2018-05-17

申请号：US15831260

申请日：2017-12-04

Applicant: APPLE INC.

Inventor： Colin Whitby-Strevens

IPC: H04L25/03 ,  H04B1/04 ,  H04L9/06

CPC classification number: H04L25/03343 ,  H03K19/17728 ,  H04B1/0475 ,  H04B15/00 ,  H04B2215/061 ,  H04L9/003 ,  H04L9/0656

Abstract: Methods and apparatus for the scrambling of control symbols. In one embodiment, the control symbols are associated with an HDMI interface, and the methods and apparatus are configured to scramble the symbols to as to mitigate the effects of electromagnetic interference (EMI) created by the transmission of otherwise unscrambled sequences of symbols which may contain significant “clock pattern” or other undesirable artifact.

公开(公告)号：US09749159B2

公开(公告)日：2017-08-29

申请号：US14961501

申请日：2015-12-07

Applicant: APPLE INC.

Inventor： Colin Whitby-Strevens

IPC: H04L25/03 ,  G09G5/00 ,  G06F3/14 ,  G09G5/12

CPC classification number: H04L25/03866 ,  G06F3/14 ,  G09G5/006 ,  G09G5/12 ,  G09G2330/06 ,  G09G2370/12 ,  H04L25/03872

Abstract: Methods and apparatus for scrambling symbols over multi-lane serial interfaces in order to improve undesired electromagnetic emissions. In one embodiment the scrambling is based on a seed value associated with each lane. In a second embodiment, the scrambling values are selected from various taps of a scrambling component, where the selection is based on the associated lane. In still a third embodiment, each lane is associated with a distinct scrambling component.

公开(公告)号：US09661350B2

公开(公告)日：2017-05-23

申请号：US15043252

申请日：2016-02-12

Applicant: APPLE INC.

Inventor： Colin Whitby-Strevens

IPC: H04L27/06 ,  H04N19/89 ,  H04L1/00 ,  H04L1/20 ,  G09G5/00

CPC classification number: H04N19/89 ,  G09G5/006 ,  H04L1/00 ,  H04L1/0007 ,  H04L1/203

Abstract: Methods and apparatus for estimating received error rates. In one embodiment, the estimation of received error rates is conducted in relation to a bus interface such as a high-speed High-Definition Multimedia Interface (HDMI) interface, and the method utilizes corrupted symbols that violate TMDS symbol rules, the corrupted symbols being easily detected and counted. In one exemplary implementation, a symbol error rate (SER) can be estimated from the number of detected invalid symbols. The SER can be used to diagnose the performance of the HDMI interface, and optionally as a basis for selecting or implementing corrective action(s).

公开(公告)号：US09647701B2

公开(公告)日：2017-05-09

申请号：US14273258

申请日：2014-05-08

Applicant: Apple Inc.

Inventor： Colin Whitby-Strevens

IPC: H04B1/04 ,  G08C19/00 ,  H04L25/49 ,  H04B1/12

CPC classification number: H04B1/0475 ,  G08C19/00 ,  H04B1/12 ,  H04L25/4908

Abstract: Methods and apparatus for the intelligent association of control symbols with special symbols that are transmitted over a network. In one embodiment, the association is utilized to improve DC-balance on a transmission medium. In an exemplary variant, the special symbols originate from line codes such as the 8B/10B line code, which format a digital signal so that is optimized for transmission over a given physical channel. These control symbols are divided up according to a first criterion, while the special symbols are further divided up according to a second criterion. The divided control symbols are then allocated to the divided special symbols using a pre-designated allocation algorithm, which may or may not include a scrambling algorithm. The allocation of the control symbols improves signal characteristics and electromagnetic interference (EMI) when various ones of control symbols are ultimately transmitted over a given transmission medium.

公开(公告)号：US20170124010A1

公开(公告)日：2017-05-04

申请号：US15243824

申请日：2016-08-22

Applicant: Apple Inc.

Inventor： Colin Whitby-Strevens ,  Kevin M. Keeler ,  Christophe B. Daniel

IPC: G06F13/38 ,  G06F11/30 ,  G06F13/42

CPC classification number: G06F13/385 ,  G06F11/3041 ,  G06F11/3048 ,  G06F11/3051 ,  G06F13/4068 ,  G06F13/4282

Abstract: Methods, structures, and apparatus that limit the amount of dendritic growth and metal migration between contacts in order to prevent an erroneous detection of a connection and/or functional failure. One example may reduce dendritic growth and metal migration by limiting an amount of time that a connection detection voltage is applied to CC contacts of a USB Type-C connector when an electronic device is detecting a connection. This and other examples may further limit dendritic growth by not applying the connection detection voltage to the CC contacts for a first duration following a detection of a disconnection.

公开(公告)号：US09450790B2

公开(公告)日：2016-09-20

申请号：US14168633

申请日：2014-01-30

Applicant: Apple Inc.

Inventor： Colin Whitby-Strevens

IPC: H04B1/00 ,  H04L25/08 ,  G09G5/00 ,  H04L25/03 ,  H04N21/4363

CPC classification number: H04L25/03866 ,  G09G5/006 ,  G09G2330/06 ,  G09G2370/12 ,  H04L25/08 ,  H04N21/43635

Abstract: Methods and apparatus for the selection and/or configuration of scrambling operations to accommodate e.g., both scrambling and non-scrambling connections (such as to e.g., legacy type devices). In one embodiment, media interface devices (such as e.g., HDMI (High-Definition Multimedia Interface)) devices may provide enhanced scrambling capabilities; solutions disclosed herein provide, among other things, support for both enhanced scrambling capable devices and legacy devices, and enable a device to determine the scrambling capabilities of a connected device.

Abstract translation: 用于选择和/或配置加扰操作以适应例如加扰和非加扰连接（例如传统型设备）的方法和装置。 在一个实施例中，媒体接口设备（例如，HDMI（高清晰度多媒体接口））设备可以提供增强的加扰功能; 本文公开的解决方案提供了对增强的可加扰的设备和传统设备的支持，并且使得设备能够确定所连接设备的加扰能力。

公开(公告)号：US20160249070A1

公开(公告)日：2016-08-25

申请号：US15043252

申请日：2016-02-12

Applicant: APPLE INC.

Inventor： Colin Whitby-Strevens

IPC: H04N19/89 ,  H04L1/20

CPC classification number: H04N19/89 ,  G09G5/006 ,  H04L1/00 ,  H04L1/0007 ,  H04L1/203

Abstract: Methods and apparatus for estimating received error rates. In one embodiment, the estimation of received error rates is conducted in relation to a bus interface such as a high-speed High-Definition Multimedia Interface (HDMI) interface, and the method utilizes corrupted symbols that violate TMDS symbol rules, the corrupted symbols being easily detected and counted. In one exemplary implementation, a symbol error rate (SER) can be estimated from the number of detected invalid symbols. The SER can be used to diagnose the performance of the HDMI interface, and optionally as a basis for selecting or implementing corrective action(s).

公开(公告)号：US20160164705A1

公开(公告)日：2016-06-09

申请号：US14961501

申请日：2015-12-07

Applicant: APPLE INC.

Inventor： Colin Whitby-Strevens

IPC: H04L25/03

CPC classification number: H04L25/03866 ,  G06F3/14 ,  G09G5/006 ,  G09G5/12 ,  G09G2330/06 ,  G09G2370/12 ,  H04L25/03872

Abstract: Methods and apparatus for scrambling symbols over multi-lane serial interfaces in order to improve undesired electromagnetic emissions. In one embodiment the scrambling is based on a seed value associated with each lane. In a second embodiment, the scrambling values are selected from various taps of a scrambling component, where the selection is based on the associated lane. In still a third embodiment, each lane is associated with a distinct scrambling component.

Abstract translation: 用于通过多通道串行接口加扰符号的方法和装置，以便改善不期望的电磁辐射。 在一个实施例中，加扰基于与每个通道相关联的种子值。 在第二实施例中，从加扰分量的各种抽头中选择加扰值，其中选择基于相关联的通道。 在仍然第三实施例中，每个通道与不同的加扰分量相关联。

公开(公告)号：US09210010B2

公开(公告)日：2015-12-08

申请号：US13841897

申请日：2013-03-15

Applicant: Apple, Inc.

Inventor： Colin Whitby-Strevens

IPC: H04L25/03 ,  G09G5/00 ,  G06F3/14 ,  G09G5/12

CPC classification number: H04L25/03866 ,  G06F3/14 ,  G09G5/006 ,  G09G5/12 ,  G09G2330/06 ,  G09G2370/12 ,  H04L25/03872

Abstract: Methods and apparatus for scrambling symbols over multi-lane serial interfaces in order to improve undesired electromagnetic emissions. In one embodiment the scrambling is based on a seed value associated with each lane. In a second embodiment, the scrambling values are selected from various taps of a scrambling component, where the selection is based on the associated lane. In still a third embodiment, each lane is associated with a distinct scrambling component.

Abstract translation: 用于通过多通道串行接口加扰符号的方法和装置，以便改善不期望的电磁辐射。 在一个实施例中，加扰基于与每个通道相关联的种子值。 在第二实施例中，从加扰分量的各种抽头中选择加扰值，其中选择基于相关联的通道。 在仍然第三实施例中，每个通道与不同的加扰分量相关联。

公开(公告)号：US09158350B2

公开(公告)日：2015-10-13

申请号：US13717941

申请日：2012-12-18

Applicant: Apple Inc.

Inventor： Brijesh Tripathi ,  Colin Whitby-Strevens ,  Geertjan Joordens ,  Moon Jung Kim ,  Raman S Thiara

IPC: G06F1/26 ,  G09G5/00

CPC classification number: G06F1/26 ,  G09G5/00 ,  G09G5/006 ,  G09G5/18 ,  G09G2330/021 ,  G09G2370/10

Abstract: Embodiments of an apparatus for implementing a display port interface are disclosed. The apparatus may include a source processor and a sink processor coupled through an interface. The interface may include a primary link, and an auxiliary link. The source processor may be operable to send a wake-up command to the sink processor via the auxiliary link, which may indicate a change in frequency on the primary link. The source processor to the sink processor via the primary link may send initialization parameters, which may include a clock data recovery lock parameter and an idle parameter.

Abstract translation: 公开了一种用于实现显示端口接口的设备的实施例。 该装置可以包括通过接口耦合的源处理器和宿处理器。 接口可以包括主链路和辅助链路。 源处理器可以用于经由辅助链路向宿处理器发送唤醒命令，辅助链路可指示主链路上的频率变化。 通过主链路到宿处理器的源处理器可以发送初始化参数，其可以包括时钟数据恢复锁定参数和空闲参数。