公开(公告)号：US20180225253A1

公开(公告)日：2018-08-09

申请号：US15942385

申请日：2018-03-30

Applicant: QUALCOMM Incorporated

Inventor： Radu PITIGOI-ARON ,  Richard Dominic WIETFELDT ,  Douglas Wayne HOFFMAN

IPC: G06F13/42

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.

公开(公告)号：US20180224887A1

公开(公告)日：2018-08-09

申请号：US15851453

申请日：2017-12-21

Applicant: QUALCOMM Incorporated

Inventor： Radu PITIGOI-ARON

IPC: G06F1/14 ,  H04L12/40

CPC classification number: G06F1/14 ,  G06F13/24 ,  H04L12/40032 ,  H04L67/12 ,  H04W52/0251 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/26

Abstract: Methods and apparatuses are described for obtaining a timestamp of an interface event. In one configuration, a host receives an in-band interrupt (IBI) from a sensor. The IBI indicates an interface event occurring at a first time on the sensor. The host issues a first host-initiated event at a second time after the first time in response to the IBI and starts a first host count of cycles of a host clock, wherein a start of the first host count of cycles is concurrent with issuing the first host-initiated event. The host further detects whether reception of the IBI was delayed. If the reception of the IBI was not delayed, the host obtains the timestamp of the interface event based on a first set of variables. If the reception of the IBI was delayed, the host obtains the timestamp of the interface event based on a second set of variables.

公开(公告)号：US20180052802A1

公开(公告)日：2018-02-22

申请号：US15685783

申请日：2017-08-24

Applicant: QUALCOMM Incorporated

Inventor： Radu PITIGOI-ARON ,  Richard Dominic WIETFELDT ,  Douglas Wayne HOFFMAN

IPC: G06F13/42

Abstract: Systems, methods and apparatus are described that offer improved performance of a sensor bus. A method includes transmitting a first command on a serial bus while operating in a first mode of operation, exchanging first data with the first device in accordance with a second protocol associated with the second mode of operation, and exchanging second data with the first device in accordance with the second protocol after the first period of time. The first command may be transmitted in accordance with a first protocol to cause a first device to operate in a second mode of operation. The first device may be idle for a first period of time after the first data has been exchanged.

公开(公告)号：US20170255588A1

公开(公告)日：2017-09-07

申请号：US15442164

申请日：2017-02-24

Applicant: QUALCOMM Incorporated

Inventor： Radu PITIGOI-ARON

IPC: G06F13/42 ,  G06F13/364

CPC classification number: G06F13/4282 ,  G06F13/364

Abstract: System, methods and apparatus offer improved performance for a communication interface that provides for the coexistence of devices on a serial bus. A bus master coupled to a serial bus configures a transceiver for communicating on the serial bus when the serial bus is operated in a high data rate mode of operation on the serial bus, and while the serial bus is operated in the high data rate mode of operation, transmits a first command addressed to an invalid slave device address, and transmits a second command addressed to a valid slave device address. The second command may be defined for transmission when the serial bus is operated in a low data rate mode of operation.

公开(公告)号：US20150227191A1

公开(公告)日：2015-08-13

申请号：US14179259

申请日：2014-02-12

Applicant: QUALCOMM Incorporated

Inventor： Radu PITIGOI-ARON ,  Justin Patrick MCGLOIN

IPC: G06F1/32 ,  G06F21/72

CPC classification number: G06F1/3293 ,  A61B5/0024 ,  A61B5/1118 ,  G06F19/00 ,  G06F19/3418 ,  G06F21/72 ,  G16H40/63 ,  H04L63/0861 ,  H04L67/12 ,  H04W4/80 ,  H04W12/06 ,  H04W84/18 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/26

Abstract: Embodiments of the invention provide for a sensor system with enhanced low-power features. Embodiments can include transmission of sensor data from a transmitter unit to a receiver unit. The sensor data can flag the sensor data with a particular header ID, enabling the receiver unit to route the sensor data to a low-power processing unit within the receiver unit without using the receiver unit's higher-power application processer. Embodiments can also utilize a proprietary encryption engine to provide a supplementary encryption layer to any encryption utilized in the wireless protocol. The transmitter unit can also compress and batch the sensor data for sending, to further increase power savings.

Abstract translation: 本发明的实施例提供了具有增强的低功率特征的传感器系统。 实施例可以包括将传感器数据从发射机单元传输到接收机单元。 传感器数据可以用特定标题ID来标记传感器数据，使得接收器单元能够将传感器数据路由到接收器单元内的低功率处理单元，而不使用接收器单元的较高功率应用处理器。 实施例还可以利用专有加密引擎向无线协议中使用的任何加密提供补充加密层。 发射机单元还可以压缩和批量传感器数据进行发送，以进一步增加功率节省。