公开(公告)号：US20160148670A1

公开(公告)日：2016-05-26

申请号：US14616720

申请日：2015-02-08

Applicant: QUALCOMM INCORPORATED

Inventor： NHON TOAI QUACH ,  VIRAT DEEPAK ,  OSCAR CABRAL ARIAS ,  YANRU LI ,  HAW-JING LO ,  MICHAEL DROP ,  VENKATA NARAYANA RAMESH PINNAMARAJU DURGA ,  MOINUL KHAN

IPC: G11C11/4074 ,  G06F1/32 ,  G11C11/409

CPC classification number: G06F1/3275 ,  G06F1/3287 ,  G06F2212/1028 ,  G06F2212/401 ,  G11C11/4074 ,  G11C11/409 ,  H03M7/30 ,  Y02D10/13 ,  Y02D10/14 ,  Y02D10/171

Abstract: Various embodiments of systems and methods are disclosed for reducing volatile memory standby power in a portable computing device. One such method involves receiving a request for a volatile memory device to enter a standby power mode. One or more compression parameters are determined for compressing content stored in a plurality of banks of the volatile memory device. The stored content is compressed based on the one or more compression parameters to free-up at least one of the plurality of banks. The method disables self-refresh of at least a portion of one or more of the plurality of banks freed-up by the compression during the standby power mode.

Abstract translation: 公开了用于减少便携式计算设备中的易失性存储器待机功率的系统和方法的各种实施例。 一种这样的方法包括接收对易失性存储器设备进入待机功率模式的请求。 确定一个或多个压缩参数以压缩存储在易失性存储器件的多个组中的内容。 存储的内容基于一个或多个压缩参数被压缩以释放多个存储体中的至少一个存储体。 该方法禁用在待机功率模式期间由压缩释放的多个组中的一个或多个的至少一部分的自刷新。

公开(公告)号：US20160170877A1

公开(公告)日：2016-06-16

申请号：US14571876

申请日：2014-12-16

Applicant: QUALCOMM INCORPORATED

Inventor： GEORGE PATSILARAS ,  BOHUSLAV RYCHLIK ,  ANDREW EDMUND TURNER ,  KRIS TIRI ,  JEONG-HO WOO ,  ANWAR ROHILLAH ,  FENG WANG ,  MOINUL KHAN ,  SUBBARAO PALACHARLA

IPC: G06F12/08 ,  G06F13/16 ,  G06F9/46 ,  G06F1/32

CPC classification number: G06F12/0802 ,  G06F1/3253 ,  G06F9/467 ,  G06F12/0804 ,  G06F12/0835 ,  G06F12/0891 ,  G06F13/16 ,  G06F2212/604 ,  Y02D10/13 ,  Y02D10/14

Abstract: Various embodiments of methods and systems for managing write transaction volume from a master component to a long term memory component in a system on a chip (“SoC”) are disclosed. Because power consumption and bus bandwidth are unnecessarily consumed when ephemeral data is written back to long term memory (such as a double data rate “DDR” memory) from a closely coupled memory component (such as a low level cache “LLC” memory) of a data generating master component, embodiments of the solutions seek to identify write transactions that contain ephemeral data and prevent the ephemeral data from being written to DDR.

Abstract translation: 公开了用于在芯片上的系统（“SoC”）中管理从主组件到长期存储器组件的写事务量的方法和系统的各种实施例。 因为当临时数据从紧密耦合的存储器组件（例如低级缓存“LLC”存储器））写入长期存储器（例如双倍数据速率“DDR”存储器）时，功耗和总线带宽被不必要地消耗 数据生成主组件，解决方案的实施例寻求识别包含短暂数据的写事务，并防止短暂数据被写入DDR。

公开(公告)号：US20150286467A1

公开(公告)日：2015-10-08

申请号：US14304611

申请日：2014-06-13

Applicant: QUALCOMM INCORPORATED

Inventor： MOINUL KHAN ,  CHIA-YUAN TENG ,  SIMO PETTERI KANGASLAMPI

IPC: G06F5/12 ,  G11C7/10 ,  G06F13/16

CPC classification number: G06F5/12 ,  G06F13/1673 ,  G11C7/1072 ,  H03M7/30 ,  H03M7/6064 ,  H03M7/6088 ,  H03M7/6094 ,  Y02D10/14

Abstract: Systems and methods for adaptive compression mode selection for memory buffers such as those used in or with a portable computing device (“PCD”) are presented. During operation of the PCD a first compression mode is selected for a buffer and the buffer is formatted to the first compression mode. Any access to the buffer by a component of the PCD, core of the PCD or software application running on the PCD is monitored. Based on the amount and/or type of access to the buffer, a second compression mode for the buffer is selected. The buffer is formatted to the second compression mode, providing a cost effective ability to adaptively format buffers based on the component(s), cores(s), and/or software application(s) accessing the buffers, and allowing for improving or optimizing bandwidth, memory footprint, resource conflict, power consumption, latency, and/or performance of component(s), core(s), or software application(s) accessing buffers as desired.

Abstract translation: 提出了用于诸如在便携式计算设备（“PCD”）中使用的存储器缓冲器的存储器缓冲器的自适应压缩模式选择的系统和方法。 在PCD的操作期间，为缓冲器选择第一压缩模式，并且将缓冲器格式化为第一压缩模式。 通过PCD的组件，PCD的核心或PCD上运行的软件应用程序访问缓冲区。 基于对缓冲器的访问量和/或类型，选择缓冲器的第二压缩模式。 缓冲器被格式化为第二压缩模式，提供了基于访问缓冲器的组件，核心和/或软件应用程序来自适应地格式化缓冲器的成本有效的能力，并且允许改进或优化 带宽，内存占用，资源冲突，功耗，延迟和/或性能，组件，核心或软件应用程序的访问缓冲区。

公开(公告)号：US20180302624A1

公开(公告)日：2018-10-18

申请号：US15490620

申请日：2017-04-18

Applicant: QUALCOMM INCORPORATED

Inventor： SERAG GADELRAB ,  CHINCHUAN CHIU ,  MOINUL KHAN ,  KYLE ERNEWEIN ,  TOM LONGO ,  SIMON BOOTH ,  MEGHAL VARIA ,  MILIVOJE ALEKSIC

IPC: H04N19/127 ,  H04N19/426 ,  H04N19/65 ,  H04N19/103 ,  H04N19/176 ,  G01K13/00 ,  G01K1/14

Abstract: An exemplary method for intelligent compression defines a threshold value for a temperature reading generated by a temperature sensor. Data blocks received into the compression module are compressed according to either a first mode or a second mode, the selection of which is determined based on a comparison of the active level for the temperature reading to the defined threshold value. The first compression mode may be associated with a lossless compression algorithm while the second compression mode is associated with a lossy compression algorithm. Or, both the first compression mode and the second compression mode may be associated with a lossless compression algorithm, however, for the first compression mode the received data blocks are produced at a default high quality level setting while for the second compression mode the received data blocks are produced at a reduced quality level setting.

公开(公告)号：US20150302903A1

公开(公告)日：2015-10-22

申请号：US14257980

申请日：2014-04-21

Applicant: QUALCOMM INCORPORATED

Inventor： PANKAJ CHAURASIA ,  MOINUL KHAN ,  VINOD CHAMARTY ,  SUBBARAO PALACHARLA ,  DEXTER CHUN

IPC: G11C7/10 ,  G06F12/08

CPC classification number: G11C7/1072 ,  G06F12/084 ,  G06F12/0842 ,  G06F12/0846 ,  G06F2212/1024 ,  G06F2212/171

Abstract: Various embodiments of methods and systems for deep coalescing memory management (“DCMM”) in a portable computing device (“PCD”) are disclosed. Because multiple active multimedia (“MM”) clients running on the PCD may generate a random stream of mixed read and write requests associated with data stored at non-contiguous addresses in a double data rate (“DDR”) memory component, DCMM solutions triage the requests into dedicated deep coalescing (“DC”) cache buffers, sequentially ordering the requests and/or the DC buffers based on associated addresses for the data in the DDR, to optimize read and write transactions from and to the DDR memory component in blocks of contiguous data addresses.

Abstract translation: 公开了便携式计算设备（“PCD”）中深层聚合存储器管理（“DCMM”）的方法和系统的各种实施例。 由于在PCD上运行的多个活动多媒体（“MM”）客户端可以生成与双数据速率（“DDR”）存储器组件中存储在非连续地址中的数据相关联的混合读和写请求的随机流，DCMM解决方案 请求进入专用深度合并（“DC”）高速缓冲存储器，根据DDR中的数据的相关地址顺序排序请求和/或DC缓冲区，以优化块内的DDR存储器组件的读写事务 的连续数据地址。

公开(公告)号：US20180336659A1

公开(公告)日：2018-11-22

申请号：US15596989

申请日：2017-05-16

Applicant: QUALCOMM INCORPORATED

Inventor： MEHRAD TAVAKOLI ,  MOINUL KHAN ,  MRIGANKA MONDAL ,  RAGHAVENDRA NAGARAJ

IPC: G06T1/60 ,  G06T1/20 ,  G06T9/00 ,  G06T15/00 ,  G06T19/00 ,  G06T7/00 ,  H04N19/597 ,  H04N19/156 ,  H04N19/20 ,  H04N19/51

CPC classification number: H04N19/597 ,  H04N13/00 ,  H04N19/423 ,  H04N19/436

Abstract: Systems, methods, and computer programs are disclosed for reducing memory bandwidth via multiview compression/decompression. One embodiment is a compression method for a multiview rendering in a graphics pipeline. The method comprises receiving a first image and a second image for a multiview rendering. A difference is calculated between the first and second images. The method compresses the first image and the difference between the first and second images. The compressed first image and the compressed difference are stored in a memory. The compressed first image and the compressed difference are decompressed. The second image is generated by comparing the first image to the difference.

公开(公告)号：US20180302625A1

公开(公告)日：2018-10-18

申请号：US15490625

申请日：2017-04-18

Applicant: QUALCOMM INCORPORATED

Inventor： SERAG GADELRAB ,  CHINCHUAN CHIU ,  MOINUL KHAN ,  KYLE ERNEWEIN ,  TOM LONGO ,  SIMON BOOTH ,  MEGHAL VARIA ,  MILIVOJE ALEKSIC ,  KING-CHUNG LAI

IPC: H04N19/127 ,  G06F3/06 ,  H04N19/426 ,  H04N19/176 ,  H04N19/65 ,  G06T3/40 ,  G01K13/00

CPC classification number: H04N19/127 ,  G01K13/00 ,  G06F3/0604 ,  G06F3/064 ,  G06F3/0653 ,  G06F3/067 ,  G06T3/40 ,  H04N19/12 ,  H04N19/134 ,  H04N19/146 ,  H04N19/154 ,  H04N19/156 ,  H04N19/172 ,  H04N19/176 ,  H04N19/426 ,  H04N19/46 ,  H04N19/65 ,  H04N19/85

Abstract: An exemplary method for intelligent compression defines a threshold value for a key performance indicator. Based on the key performance indicator value, data blocks generated by a producer component may be scaled down to reduce power and/or bandwidth consumption when being compressed according to a lossless compression module. The compressed data blocks are then stored in a memory component along with metadata that signals the scaling factor used prior to compression. Consumer components later retrieving the compressed data blocks from the memory component may decompress the data blocks and upscale, if required, based on the scaling factor signaled by the metadata.

公开(公告)号：US20160210239A1

公开(公告)日：2016-07-21

申请号：US14598049

申请日：2015-01-15

Applicant: QUALCOMM INCORPORATED

Inventor： FENG WANG ,  BOHUSLAV RYCHLIK ,  MOINUL KHAN

IPC: G06F12/08

CPC classification number: G06F12/0888 ,  G06F12/0811 ,  G06F12/0833 ,  G06F12/0835 ,  G06F12/0868 ,  G06F2212/283 ,  G06F2212/6046 ,  G06F2212/62 ,  Y02D10/13

Abstract: Systems and methods for improved operation of a victim cache in a portable computing device (PCD) are presented. A lower level cache is operated as a victim to an upper level cache, the lower level cache containing a plurality of cache lines. A filter is operated in association with the lower level victim cache, and reflects the cache lines contained in the victim cache. For a miss at the upper level cache, the filter is checked to determine if the requested cache line is in the victim cache. If checking the filter determines that the requested cache line is in the victim cache the requested cache line is retrieved from the victim cache. If checking the filter determines that the request cache line is not in the victim cache, the victim cache is bypassed and the cache line is requested from a memory controller.

Abstract translation: 提出了用于改进便携式计算设备（PCD）中的受害者缓存的操作的系统和方法。 低级缓存作为高级缓存的受害者操作，下级缓存包含多条高速缓存行。 过滤器与较低级别的受害者缓存相关联地操作，并且反映包含在受害者缓存中的高速缓存行。 对于高级缓存中的缺失，将检查过滤器以确定所请求的高速缓存行是否位于受害缓存中。 如果检查过滤器确定请求的高速缓存行在受害缓存中，则从受害缓存中检索所请求的高速缓存行。 如果检查过滤器确定请求高速缓存行不在受害者缓存中，则会绕过受害者缓存，并从存储控制器请求缓存行。

公开(公告)号：US20160210230A1

公开(公告)日：2016-07-21

申请号：US14597992

申请日：2015-01-15

Applicant: QUALCOMM INCORPORATED

Inventor： FENG WANG ,  BOHUSLAV RYCHLIK ,  MOINUL KHAN

IPC: G06F12/08

CPC classification number: G06F12/0811 ,  G06F12/0848 ,  G06F12/0895 ,  G06F12/0897 ,  G06F2212/282 ,  G06F2212/283 ,  G06F2212/6012 ,  G06F2212/604

Abstract: Systems and methods for adaptive implementation of victim cache modes in a portable computing device (PCD) are presented. In operation, an upper level cache is partitioned into a main portion and a sample portion; and a lower level cache is partitioned into a corresponding main portion and sample portion in communication with the main portion and sample portion of the upper level cache. A victim mode sample data set and a normal mode sample data set are obtained from the lower level cache. Based on the victim mode and a normal mode sample data sets, a determination is made whether to operate the lower level cache as a victim to the upper level cache. The main portion of lower level cache is caused to operate either as a victim or non-victim to the main portion of the upper level cache in accordance with the determination.

Abstract translation: 提出了在便携式计算设备（PCD）中自适应实现受害者缓存模式的系统和方法。 在操作中，上级缓存被分割成主要部分和样本部分; 并且下级缓存被分割成与上级高速缓存的主要部分和采样部分通信的对应主要部分和采样部分。 从下级缓存获得受害者模式样本数据集和正常模式样本数据集。 基于受害者模式和正常模式的采样数据集，确定是否将较低级别的高速缓存操作为上级缓存的受害者。 下级缓存的主要部分根据该确定被作为高级缓存的主要部分作为受害者或不受害者操作。