公开(公告)号：US20150363349A1

公开(公告)日：2015-12-17

申请号：US14739439

申请日：2015-06-15

Applicant: QUALCOMM Incorporated

Inventor： Terrence Brian Remple ,  Nam Van Dang ,  Sassan Shahrokhinia

IPC: G06F13/42 ,  G06F13/38

CPC classification number: G06F13/426 ,  G06F13/382 ,  G06F13/385 ,  G06F13/4221 ,  G06F13/4282 ,  G06F2213/0038 ,  G06F2213/3812

Abstract: A link layer to physical layer (PHY) serial interface is disclosed. In one aspect, a system on a chip (SoC) integrated circuit (IC) includes a link layer circuit, and a remote IC includes a Universal Serial Bus (USB) PHY circuit. A bus having four or fewer wires connects the two ICs. A link bridge communicates with the link layer circuit and serializes USB Transceiver Macrocell Interface (UTMI) signaling received from the link layer circuit as high speed (HS) USB messages for transmission to the remote IC. The link bridge also receives HS messages from the USB PHY circuit on the remote IC. The link bridge deserializes the HS messages to extract UTMI signaling and passes the extracted UTMI signaling to the link layer circuit.

Abstract translation: 公开了到物理层（PHY）串行接口的链路层。 在一个方面，一种片上系统（SoC）集成电路（IC）包括链路层电路，并且远程IC包括通用串行总线（USB）PHY电路。 具有四条或更少线的总线连接两个IC。 链路桥与链路层电路通信，并将从链路层电路接收的USB收发器宏小区接口（UTMI）信号串行化为高速（HS）USB消息，以传输到远程IC。 链路桥接器还从远程IC上的USB PHY电路接收HS消息。 链路桥接反序列化HS消息以提取UTMI信令，并将提取的UTMI信令传递到链路层电路。

公开(公告)号：US09176511B1

公开(公告)日：2015-11-03

申请号：US14254279

申请日：2014-04-16

Applicant: QUALCOMM Incorporated

Inventor： Nam Van Dang ,  Rajeev Jain ,  Terrence Brian Remple ,  Jingcheng Zhuang ,  Mong Chit Wong

IPC: G05F1/10 ,  G05F1/46

CPC classification number: G05F1/468 ,  G05F3/30

Abstract: A series of current repeaters with localized feedback is provided. Each current that precedes a subsequent current repeater in the series is configured to receive a feedback current from the subsequent current repeater and generate an error signal accordingly with a differential amplifier so as to reduce current repetition errors that would otherwise result from an offset voltage in the differential amplifier.

Abstract translation: 提供了一系列具有局部反馈的电流中继器。 在串联中的随后的当前中继器之前的每个电流被配置为从随后的当前中继器接收反馈电流，并且相应地使用差分放大器产生误差信号，以便减少否则由于偏置电压而产生的电流重复误差 差分放大器。

公开(公告)号：US20140149756A1

公开(公告)日：2014-05-29

申请号：US14167000

申请日：2014-01-29

Applicant: QUALCOMM Incorporated

Inventor： Cheng Zhong ,  Nam Van Dang ,  Hung Q. Vuong ,  Xiaohua Kong

IPC: G06F1/26 ,  G06F1/16

CPC classification number: G06F1/3278 ,  G06F1/1632 ,  G06F1/266 ,  G06F1/3203 ,  G06F1/3206 ,  G06F1/3281 ,  G06F11/2289 ,  G06F11/3041 ,  G06F11/3048 ,  G06F11/3051 ,  G06F11/3089 ,  G06F13/4022 ,  G06F13/4081 ,  Y02D10/151 ,  Y10T307/76

Abstract: In a particular embodiment, an electronic device includes a direct current (DC) voltage source coupled to a DC interface. The electronic device includes a receiver sense circuit configured to detect a connection of the electronic device to a sink device via a connector without consuming power from the DC voltage source. The electronic device further includes a controller coupled to a hot plug detect (HPD) interface. The controller is configured to receive a detection signal from the receiver sense circuit, selectively control a switch to enable and disable the DC voltage source based on the detection signal, detect an HPD signal at the HPD interface after enabling the DC voltage source, and disable the receiver sense circuit in response to detecting the HPD signal.

Abstract translation: 在特定实施例中，电子设备包括耦合到DC接口的直流（DC）电压源。 电子设备包括接收器感测电路，其被配置为经由连接器检测电子设备到宿设备的连接，而不消耗来自DC电压源的电力。 电子设备还包括耦合到热插拔检测（HPD）接口的控制器。 控制器被配置为从接收器感测电路接收检测信号，选择性地控制开关以基于检测信号启用和禁用DC电压源，在启用直流电压源之后检测HPD接口处的HPD信号，并禁用 接收机感测电路响应于检测到HPD信号。