公开(公告)号：US20150370305A1

公开(公告)日：2015-12-24

申请号：US14308017

申请日：2014-06-18

Applicant: QUALCOMM Incorporated

Inventor： Richard Dominic Wietfeldt

IPC: G06F1/32

CPC classification number: G06F1/3206 ,  G06F1/3234 ,  H04L25/026 ,  H04L25/08

Abstract: Systems and methods for providing power savings and interference mitigation on physical transmission media are disclosed. Exemplary aspects include the ability to change physical layer (PHY) configurations based on operating conditions. By changing the PHY configuration, power consumption and electromagnetic interference (EMI) may be reduced. Still other operating conditions may be used to initiate switching between different PHYs. In another exemplary aspect, parameters of the PHY, such as slew rate, may be modified based on operating conditions to save power and/or reduce interference.

Abstract translation: 公开了用于在物理传输介质上提供功率节省和干扰减轻的系统和方法。 示例性方面包括基于操作条件改变物理层（PHY）配置的能力。 通过改变PHY配置，可以降低功耗和电磁干扰（EMI）。 还可以使用其他操作条件来启动不同PHY之间的切换。 在另一示例性方面，可以基于操作条件修改诸如转换速率的PHY的参数以节省功率和/或减少干扰。

公开(公告)号：US20150316652A1

公开(公告)日：2015-11-05

申请号：US14268823

申请日：2014-05-02

Applicant: QUALCOMM Incorporated

Inventor： Richard Dominic Wietfeldt ,  George Chrisikos

IPC: G01S19/13

CPC classification number: G01S19/21 ,  G01S19/13 ,  G01S19/258 ,  G01S19/28 ,  H04B1/525

Abstract: Various arrangements are presented for managing coexistence of a global navigation satellite system (GNSS) receiver with a radio access technology (RAT) transceiver. A coexistence manager may receive an indication of a characteristic of a RAT transceiver for a scheduled operating event. Based on the characteristic of the RAT transceiver for the operating event, the coexistence manager may select a space vehicle of a GNSS to use for a location determination by the GNSS receiver. The GNSS receiver may then receive a signal from the space vehicle of the GNSS during the operating event of the RAT transceiver. Location determination using the signal received from the space vehicle received during the operating event of the RAT transceiver may then occur.

Abstract translation: 呈现了用于管理全球导航卫星系统（GNSS）接收机与无线电接入技术（RAT）收发器的共存的各种布置。 共存管理器可以接收针对调度的操作事件的RAT收发器的特性的指示。 基于用于操作事件的RAT收发器的特性，共存管理器可以选择用于由GNSS接收机进行位置确定的GNSS的空间车辆。 GNSS接收机然后可以在RAT收发器的操作事件期间从GNSS的空中交通工具接收信号。 然后可以发生使用在RAT收发器的操作事件期间接收到的从空间车辆接收的信号的位置确定。

公开(公告)号：US20150309960A1

公开(公告)日：2015-10-29

申请号：US14694618

申请日：2015-04-23

Applicant: QUALCOMM Incorporated

Inventor： Radu Pitigoi-Aron ,  Richard Dominic Wietfeldt ,  Douglas Wayne Hoffman

IPC: G06F13/42

CPC classification number: G06F13/4295 ,  G06F13/4291 ,  G06F2213/0016 ,  Y02D10/14 ,  Y02D10/151

Abstract: Systems, methods and apparatus are described that offer improved performance of a sensor bus. A first command is transmitted to devices coupled to a serial bus operated in a first mode in accordance with a first protocol to cause the serial bus to be operated in a second mode. After communicating in accordance with a second protocol while the serial bus is operated in the second mode, a second command is transmitted to the plurality of devices in accordance with the first protocol to terminate the second mode. In the second mode, extra symbols inserted into a sequence of symbols transmitted on the serial bus prevent the occurrence of an unintended signaling state on the serial bus. Pulses transmitted on a wire of the serial bus in the second mode may have their duration limited such that a filter of a second device suppresses the limited-duration pulses.

Abstract translation: 描述了提供传感器总线的改进性能的系统，方法和装置。 根据第一协议，第一命令被发送到耦合到以第一模式操作的串行总线的设备，以使串行总线以第二模式工作。 在串行总线以第二模式操作时，根据第二协议进行通信之后，根据第一协议将第二命令发送到多个设备以终止第二模式。 在第二模式中，插入到串行总线上发送的符号序列中的额外符号防止串行总线上发生无意的信令状态。 在第二模式下在串行总线的导线上传输的脉冲可以具有其持续时间限制，使得第二装置的滤波器抑制有限持续时间的脉冲。

公开(公告)号：US20130235814A1

公开(公告)日：2013-09-12

申请号：US13743260

申请日：2013-01-16

Applicant: QUALCOMM INCORPORATED

Inventor： Richard Dominic Wietfeldt ,  George Chrisikos

IPC: H04W72/08

CPC classification number: H04W72/082 ,  H04W16/14 ,  H04W72/1215 ,  H04W72/1231 ,  H04W88/04 ,  H04W88/06

Abstract: A method of wireless communication includes identifying a first radio operating in a first mode and a second radio operating in a second mode defined within one device. The first radio and the second radio operate on a same radio access technology (RAT) and also operate on a same band. The method also includes altering a communication time of the first radio and/or the second radio to reduce interference.

Abstract translation: 一种无线通信方法包括识别以第一模式操作的第一无线电和在一个设备内定义的第二模式中操作的第二无线电。 第一无线电和第二无线电在相同的无线电接入技术（RAT）上操作并且在相同的频带上操作。 该方法还包括改变第一无线电和/或第二无线电的通信时间以减少干扰。

公开(公告)号：US11907149B2

公开(公告)日：2024-02-20

申请号：US17116454

申请日：2020-12-09

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee Mishra ,  Richard Dominic Wietfeldt ,  Yiftach Benjamini

IPC: G06F13/38 ,  G06F13/42

CPC classification number: G06F13/385 ,  G06F13/4213 ,  G06F13/4226 ,  G06F2213/0042

Abstract: Sideband signaling in Universal Serial Bus (USB) Type-C communication link allows multiple protocols that are tunneled through a USB link, where sideband signals may be provided through the sideband use (SBU) pins. Further, the SBU pins may be transitioned between different modes of sideband signals. In particular, signals in an initial mode may indicate a need or desire transition to a second mode. After a negotiation, linked devices agree to transition, the two devices may transition to the second mode. By providing this inband sideband signaling that allows mode changes, more protocols can be tunneled with accompanying sideband signaling and flexibility of the USB link is expanded.

公开(公告)号：US11886366B2

公开(公告)日：2024-01-30

申请号：US17677731

申请日：2022-02-22

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee Mishra ,  Umesh Srikantiah ,  Richard Dominic Wietfeldt

IPC: G06F13/362 ,  G06F1/12 ,  G06F13/42 ,  H04L12/40

CPC classification number: G06F13/362 ,  G06F1/12 ,  G06F13/4282 ,  H04L12/40

Abstract: An apparatus coupled to a single-wire serial bus through a line driver is configured to determine that a first sequence start condition (SSC) has been initiated when the single-wire serial bus transitions from first to second signaling states. The line driver drives the single-wire serial bus to the first signaling state after a first duration to complete the first SSC, and an arbitration window with plural timeslots is provided when the line driver presents a high impedance to the single-wire serial bus after the first SSC. The line driver drives the single-wire serial bus to the first signaling state in each timeslot of the plural timeslots in which the single-wire serial bus is driven to the second signaling state. After the arbitration window has expired, the apparatus transmits a second SSC and a Manchester encoded command addressed to at least one slave device.

公开(公告)号：US11520727B2

公开(公告)日：2022-12-06

申请号：US16952229

申请日：2020-11-19

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee Mishra ,  Mohit Kishore Prasad ,  Richard Dominic Wietfeldt ,  James Lionel Panian

IPC: G06F13/42

Abstract: Alternate sideband signaling in a Peripheral Component Interconnect (PCI) express (PCIE) link may be enabled over existing sideband lines in a conventional PCIE link. For example, the default sideband communication of PCIE may be changed to a Universal Asynchronous receiver/transmitter (UART), line multiplex UART (LM-UART), serial peripheral interface (SPI), I2C, or I3C mode of communication. This change may be negotiated between the host and slave of the communication link, with a transition occurring after the negotiation concludes. The new mode of communication may include or encode the conventional PCIE sideband signals.

公开(公告)号：US11513991B2

公开(公告)日：2022-11-29

申请号：US17061357

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Richard Dominic Wietfeldt ,  Lalan Jee Mishra ,  Radu Pitigoi-Aron

IPC: G06F13/42

Abstract: Systems, methods, and apparatus for communication virtualized general-purpose input/output (GPIO) signals and control messages over a serial communication link. An apparatus includes a serial bus, and a controller configured to represent a series of signaling state of physical general-purpose input/output (GPIO) in a batch that comprises a sequence of virtual GPIO messages and control messages, generate a first header that includes timing information configured to control timing of execution of the batch, transmit the first header over a communication link, and transmit the batch over the communication link.

公开(公告)号：US20220200650A1

公开(公告)日：2022-06-23

申请号：US17127709

申请日：2020-12-18

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee Mishra ,  Richard Dominic Wietfeldt ,  Umesh Srikantiah ,  Karthik Manivannan

IPC: H04B1/401 ,  G06F13/40 ,  G06F13/42

Abstract: Systems and methods for variable stride counting for timed-triggers in a radio frequency front end (RFFE) bus modify how a master clock controls counters in slaves. In particular, instead of having the master clock change a counter at a slave device on a one-to-one clock tick-to-counter change, exemplary aspects of the present disclosure contemplate allowing a bus ownership master (BOM) to select a stride size wherein each clock tick causes the counter to change by the size of the stride. Clock ticks are then sent less frequently over the clock line of the RFFE bus. In this fashion, fewer clock ticks are required to change the counter to the trigger event.

公开(公告)号：US11177856B2

公开(公告)日：2021-11-16

申请号：US16780509

申请日：2020-02-03

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee Mishra ,  Richard Dominic Wietfeldt ,  Soon-Seng Lau

IPC: H04W4/00 ,  H04B3/487 ,  H04B3/06 ,  H04L27/00

Abstract: Crosstalk amelioration systems and methods in a radio frequency front end (RFFE) communication system provide a host or master of an RFFE bus to monitor a weakly-driven data line in the RFFE bus while a clock line is actively providing a clock signal for trigger events at one or more slaves on the RFFE bus. If the host detects noise on the data line that looks like a sequence start condition (SSC) signal, the host further signals on the data line to negate the impact of the false SSC signal and thus avoid misinterpretation by the slaves.