公开(公告)号：US20200341506A1

公开(公告)日：2020-10-29

申请号：US16927657

申请日：2020-07-13

申请人： QUALCOMM Incorporated

发明人： Yiftach Benjamini ,  Amit Gil ,  Shaul Yohai Yifrach

IPC分类号： G06F1/12 ,  G06F13/42

摘要： Systems and methods for time synchronization for clocks separated by a communication link allow a master clock to be positioned at a downstream-facing port or an upstream-facing port and to send synchronization commands with an associated time stamp embedded in transport layer protocol (TLP) prefixes to a slave clock. The slave clock may update its time value based on the received time stamp. Further, the slave may calculate a round trip delay between the master clock and the slave clock and use this delay calculation to correct the slave clock. The delay calculation may likewise be made using TLP prefixes. By using TLP prefixes in this fashion, the time synchronization can piggyback on existing message traffic, which reduces signaling overhead. Likewise, by using the TLP prefixes, the time synchronization may be initiated from either an upstream-facing port or a downstream-facing port.

公开(公告)号：US20200089645A1

公开(公告)日：2020-03-19

申请号：US16569816

申请日：2019-09-13

申请人： QUALCOMM Incorporated

发明人： Yiftach Benjamini ,  Lior Amarilio ,  Amit Gil ,  James Lionel Panian ,  Dafna Shaool

IPC分类号： G06F13/42 ,  H04L9/08

摘要： Security techniques for a Peripheral Component Interconnect (PCI) express (PCIE) system include a transport layer protocol (TLP) packet that has a prepended TLP prefix indicating the security features of the TLP packet and an integrity check value (ICV) appended to the TLP packet. The ICV is based on the TLP packet and any TLP prefixes including a security prefix. At a receiver, if the ICV does not match, then the receiver has evidence that the TLP packet may have been subjected to tampering. Further, the TLP packet may be encrypted to prevent snooping, and this feature would be indicated in the TLP prefix. Still further, the TLP prefix may include a counter that may be used to prevent replay attacks. PCIE contemplates flexible TLP prefixes, and thus, the standard readily accommodates the addition of a TLP prefix which indicates the security features of the TLP packet.

公开(公告)号：US20190332137A1

公开(公告)日：2019-10-31

申请号：US15966077

申请日：2018-04-30

申请人： QUALCOMM Incorporated

发明人： Yiftach Benjamini ,  Amit Gil ,  Shaul Yohai Yifrach

IPC分类号： G06F1/12 ,  G06F13/42 ,  G06F13/362 ,  G06F1/10

摘要： Systems and methods for time synchronization for clocks separated by a communication link allow a master clock to be positioned at a downstream-facing port or an upstream-facing port and to send synchronization commands with an associated time stamp embedded in transport layer protocol (TLP) prefixes to a slave clock. The slave clock may update its time value based on the received time stamp. Further, the slave may calculate a round trip delay between the master clock and the slave clock and use this delay calculation to correct the slave clock. The delay calculation may likewise be made using TLP prefixes. By using TLP prefixes in this fashion, the time synchronization can piggyback on existing message traffic, which reduces signaling overhead. Likewise, by using the TLP prefixes, the time synchronization may be initiated from either an upstream-facing port or a downstream-facing port.

公开(公告)号：US20190121767A1

公开(公告)日：2019-04-25

申请号：US16119127

申请日：2018-08-31

申请人： QUALCOMM Incorporated

发明人： Lior Amarilio ,  Amit Gil

IPC分类号： G06F13/362 ,  G06F3/16

摘要： Systems and methods for in-band reset and wake up on a differential audio bus are disclosed. In particular, after entering a low-power mode, a master device opens a drain on a transistor driving the differential audio bus. When a slave device needs the bus to wake, the slave device may transition the state of the bus. On detecting the transition of the bus, the master device may reassert control of the state of the bus and hold the bus in this new state until ready to issue a synchronization sequence. Likewise, an additional aspect of the present disclosure provides a distinctive sequence of holding the bus at a predefined state for an extended duration interrupted by a relatively brief reversal of the state that triggers a reset of all slave devices on the audio bus.

公开(公告)号：US20180041431A1

公开(公告)日：2018-02-08

申请号：US15226383

申请日：2016-08-02

申请人： QUALCOMM Incorporated

发明人： Shaul Yohai Yifrach ,  Tomer Rafael Ben-Chen ,  Amit Gil ,  Dan Gilboa Waizman ,  Deepak Jindal

IPC分类号： H04L12/713 ,  H04L29/12 ,  H04L12/725 ,  H04L12/863

CPC分类号： H04L45/586 ,  H04L45/306 ,  H04L47/624 ,  H04L61/2521 ,  H04L69/22 ,  H04L69/321

摘要： A virtualized Internet Protocol (IP) packet processing system is provided. In this regard, in one aspect, a computing circuit for processing IP packets is shared among a plurality of virtual clients. The computing circuit includes a plurality of hardware functional blocks each configured to perform a predefined IP packet processing function. In another aspect, a virtual channel is created for each of the virtual clients and assigned with one or more of the hardware functional blocks. In this regard, IP packets associated with each of the virtual clients may be processed by respective assigned hardware functional blocks based on a specified processing sequence. By sharing the computing circuit among the virtual clients and assigning respective hardware functional blocks to each virtual client, it is possible to optimize processing efficiency of the computing circuit, thus improving throughput, latency, and power consumption of the virtualized IP packet processing system.

公开(公告)号：US09648661B2

公开(公告)日：2017-05-09

申请号：US13863212

申请日：2013-04-15

申请人： QUALCOMM Incorporated

发明人： Srinivasan Balasubramanian ,  Anup Kuzhiyil ,  Amit Gil ,  Lalit Yerramilli Raju ,  Luiza Timariu ,  Saravana Krishnan Kannan

IPC分类号： H04W84/12 ,  H04W48/16

CPC分类号： H04W84/12 ,  H04W48/16

摘要： Techniques for performing WLAN system scanning and selection are described. A terminal performs multiple iterations of scan to detect for WLAN systems. A scan list containing at least one WLAN system to detect for is initially determined. For each scan iteration, a scan type may be selected from among the supported scan types. The selected scan type may indicate passive scan or active scan, frequency channels to scan, etc. A scan may be performed based on the selected scan type. Signal strength measurements are obtained for access points received during the scan and used to identify detected access points. After all scan iterations are completed, candidates access points are identified based on the scan results, e.g., based on the signal strength measurements for the detected access points and a detection threshold. The best candidate access point may be selected for association by the terminal.

公开(公告)号：US09514082B2

公开(公告)日：2016-12-06

申请号：US14295653

申请日：2014-06-04

申请人： QUALCOMM Incorporated

发明人： Hyunsuk Shin ,  Henry Laurel Sanchez ,  Hung Quoc Vuong ,  Amit Gil

IPC分类号： G06F12/02 ,  G06F13/40 ,  G06F13/42 ,  G11C16/14 ,  G11C16/34 ,  G11C16/20

摘要： Removable memory card type detection systems and methods are disclosed. In one aspect, a removable memory card is inserted into a receptacle of a host. The host determines a type of removable memory card based upon either electrical or physical properties of the removable memory card. In this manner, if the host detects that the removable memory card possesses certain electrical or physical properties associated with a microSD card, the host determines that the removable memory card is a microSD type card. If the host detects that the removable memory card possesses certain electrical or physical properties associated with a UFS card, the host determines that the removable memory card is a UFS type card. By determining the card type based on detection of certain electrical or physical properties, aspects disclosed herein are able to distinguish between UFS and microSD cards without requiring an additional pin or card initialization time.

公开(公告)号：US09094332B2

公开(公告)日：2015-07-28

申请号：US13734847

申请日：2013-01-04

申请人： Qualcomm Incorporated

发明人： Yuval Corey Hershko ,  Haim Snapy ,  Amit Gil

IPC分类号： H04J3/24 ,  H04L12/801

CPC分类号： H04L47/34

摘要： A method, an apparatus, and a computer program product for communication are provided. The apparatus aggregates data sets as a function of an estimated characteristic of a next data set to arrive, and adaptively adjust the estimated characteristic based on a statistical measure of the estimated characteristic derived from a plurality of previously arrived data sets. The estimated characteristic may be an estimated next arrival time of the next data set, or an estimated size of the next data set.

摘要翻译： 提供了一种用于通信的方法，装置和计算机程序产品。 该装置根据下一个数据集的估计特性将数据集聚合到达，并且基于从多个先前到达的数据集导出的估计特性的统计度量来自适应地调整估计特性。 估计特性可以是下一个数据集的估计下一个到达时间，或下一个数据集的估计大小。

公开(公告)号：US20230095850A1

公开(公告)日：2023-03-30

申请号：US17484419

申请日：2021-09-24

申请人： QUALCOMM Incorporated

发明人： Kishalay Haldar ,  Amit Gil

IPC分类号： G06F13/42 ,  G06F1/04

摘要： Systems and methods for chip operation using serial peripheral interface (SPI) without a chip select pin are disclosed. A communication link between a host and a device may include a clock line, a host to device line, and a device to host line. The host may signal a start or stop condition using the clock line and the device may send an acknowledgment of the host's signaling through the device to host line. Once acknowledgment is made, the host may then signal on the host to device line using a protocol such as SPI.

公开(公告)号：US10922252B2

公开(公告)日：2021-02-16

申请号：US15184124

申请日：2016-06-16

申请人： QUALCOMM Incorporated

发明人： Ofer Rosenberg ,  Amit Gil ,  James Lionel Panian ,  Piyush Patel ,  Shaul Yohai Yifrach

IPC分类号： G06F13/24 ,  G06F13/42

摘要： Extended message signaled interrupts (MSI) data are disclosed. In one aspect, MSI bits are modified to include a system level identifier. In an exemplary aspect, an upper sixteen bits of the MSI message data are modified to be the system level identifier. By providing the system level identifier within the MSI message data, an interrupt controller can verify the interrupt source.