公开(公告)号：US08839016B2

公开(公告)日：2014-09-16

申请号：US13683056

申请日：2012-11-21

Applicant: Marvell World Trade Ltd.

Inventor： Zhenyu Zhang ,  James Kang-Wuu Jan ,  Frank Huang ,  Yong Jiang ,  Yui Lin ,  Lite Lo

IPC: G06F1/26 ,  G06F1/32 ,  G06F13/38

CPC classification number: G06F1/324 ,  G06F1/3203 ,  G06F1/3253 ,  G06F13/385 ,  Y02D10/151 ,  Y02D50/20

Abstract: USB self-idling techniques are described. In one or more embodiments, a Universal Serial Bus (USB) device comprises one or more modules to communicate via USB and self-idle by presenting an idle mode to a USB host and entering a suspend mode after the idle mode, the suspend mode being entered while the USB host is presented with the idle mode.

Abstract translation: 描述USB自怠速技术。 在一个或多个实施例中，通用串行总线（USB）设备包括一个或多个模块，以通过USB空闲模式向USB主机呈现空闲模式并在空闲模式之后进入挂起模式，通过USB和自我空闲进行通信，挂起模式为 在USB主机呈现空闲模式时输入。

公开(公告)号：US20130346777A1

公开(公告)日：2013-12-26

申请号：US13683056

申请日：2012-11-21

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Zhenyu Zhang ,  James Kang-Wuu Jan ,  Frank Huang ,  Yong Jiang ,  Yui Lin ,  Lite Lo

IPC: G06F1/32

CPC classification number: G06F1/324 ,  G06F1/3203 ,  G06F1/3253 ,  G06F13/385 ,  Y02D10/151 ,  Y02D50/20

Abstract: USB self-idling techniques are described. In one or more embodiments, a Universal Serial Bus (USB) device comprises one or more modules to communicate via USB and self-idle by presenting an idle mode to a USB host and entering a suspend mode after the idle mode, the suspend mode being entered while the USB host is presented with the idle mode.

Abstract translation: 描述USB自怠速技术。 在一个或多个实施例中，通用串行总线（USB）设备包括一个或多个模块，以通过USB空闲模式向USB主机呈现空闲模式并在空闲模式之后进入挂起模式，通过USB和自我空闲进行通信，挂起模式为 在USB主机呈现空闲模式时输入。

公开(公告)号：US20170099063A1

公开(公告)日：2017-04-06

申请号：US15266458

申请日：2016-09-15

Applicant: Marvell World Trade Ltd.

Inventor： Vijay Ganwani ,  Vijay Ahirwar ,  Yui Lin ,  Sudhir Srinivasa ,  Hongyuan Zhang ,  Sridhar Narravula

IPC: H03M3/00 ,  H04L27/26 ,  H04B1/10 ,  H04L7/033

CPC classification number: H03M3/378 ,  H03M1/1085 ,  H03M1/1095 ,  H03M3/356 ,  H04B1/1036 ,  H04B2001/1063 ,  H04L7/0331 ,  H04L27/2636

Abstract: Apparatus for determining a signal-to-quantization-noise ratio of a quantization circuit includes a signal generator that generates an input test signal for input to the quantization circuit, circuitry for isolating, from output of the quantization circuit, a signal representing quantization noise, and circuitry for determining a ratio of the output of the quantization circuit to the signal representing quantization noise. The signal generator generates an analog test tone having a frequency, and the circuitry for isolating includes a notch filter filtering that frequency. Alternatively, the circuitry for isolating includes circuitry for generating a digital test signal, and a digital subtractor for subtracting the digital test signal from the output of the quantization circuit. According to another alternative, the circuitry for isolating includes a transformation circuit whose outputs represent a peak of the output of the quantization circuit and a noise floor of the output of the quantization circuit.