公开(公告)号：USRE48845E1

公开(公告)日：2021-12-07

申请号：US16103107

申请日：2018-08-14

申请人： Broadcom Corporation

发明人： Alexander G. MacInnis ,  Jose' R. Alvarez ,  Sheng Zhong ,  Xiaodong Xie ,  Vivian Hsiun

IPC分类号： G06F9/38 ,  H04N19/12 ,  H04N19/122 ,  H04N19/129 ,  H04N19/157 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/82 ,  H04N19/90 ,  H04N19/91

摘要： System and method for decoding digital video data. The decoding system employs hardware accelerators that assist a core processor in performing selected decoding tasks. The hardware accelerators are configurable to support a plurality of existing and future encoding/decoding formats. The accelerators are configurable to support substantially any existing or future encoding/decoding formats that fall into the general class of DCT-based, entropy decoded, block-motion-compensated compression algorithms. The hardware accelerators illustratively comprise a programmable entropy decoder, an inverse quantization module, a inverse discrete cosine transform module, a pixel filter, a motion compensation module and a de-blocking filter. The hardware accelerators function in a decoding pipeline wherein at any given stage in the pipeline, while a given function is being performed on a given macroblock, the next macroblock in the data stream is being worked on by the previous function in the pipeline.

公开(公告)号：US10178110B2

公开(公告)日：2019-01-08

申请号：US15164792

申请日：2016-05-25

申请人： Broadcom Corporation

发明人： Sreenadh Kareti

IPC分类号： G06F21/55 ,  G06F1/32 ,  H04L29/06 ,  G06F1/28 ,  H04W12/12 ,  G06F21/00 ,  H04W52/02 ,  H04W84/18

摘要： Systems and methods are provided for detecting and mitigating a sleep deprivation attack (SDA). A method for detection of the SDA includes one of tracking power consumption rate of a device, incoming request signals received by the device, or an activity duration of one or more physical interfaces of the device. A system for mitigation of the SDA includes the device to be protected from the SDA, a counter to count request signals received by the device from another device, a counter attack circuit to pose one or more security challenges by sending a request message to the other device once a counted number of request signals exceeds a pre-determined number, and a control circuit to terminate connection with the other device if an expected reply based on the request message is not received from the other device within a pre-determined time duration.

公开(公告)号：US20180041305A1

公开(公告)日：2018-02-08

申请号：US15226545

申请日：2016-08-02

申请人： BROADCOM CORPORATION

发明人： Magesh VALLIAPPAN ,  Anand Kumar PATHAK

IPC分类号： H04L1/00 ,  H04L12/26

CPC分类号： H04L1/0045 ,  H04L1/0063 ,  H04L1/0073 ,  H04L25/03 ,  H04L43/0894

摘要： An electronic device includes circuitry configured to establish a steady-state connection with another device via a communication link. A backchannel data frame is detected in a steady-state data stream received from the other device via the communication link at a first predetermined data rate. The circuitry is configured to modify one or more signal transmission parameters based on signal information included in the backchannel data frame.

公开(公告)号：US20170365565A1

公开(公告)日：2017-12-21

申请号：US15198991

申请日：2016-06-30

申请人： Broadcom Corporation

发明人： Sam Ziqun ZHAO ,  Rezaur Rahman Khan

IPC分类号： H01L23/00 ,  H01L21/48 ,  H01L21/56 ,  H01L21/78 ,  H01L21/60

CPC分类号： H01L21/4853 ,  H01L21/561 ,  H01L21/568 ,  H01L21/78 ,  H01L23/3128 ,  H01L24/13 ,  H01L24/19 ,  H01L24/20 ,  H01L24/24 ,  H01L24/82 ,  H01L24/96 ,  H01L2021/60135 ,  H01L2224/0401 ,  H01L2224/04105 ,  H01L2224/12105 ,  H01L2224/13082 ,  H01L2224/131 ,  H01L2224/24011 ,  H01L2224/24101 ,  H01L2224/24137 ,  H01L2224/25171 ,  H01L2224/73267 ,  H01L2224/96 ,  H01L2924/18161 ,  H01L2224/82 ,  H01L2224/11 ,  H01L2924/014

摘要： An integrated circuit (IC) package is disclosed that contains high density interconnects to connect multiple dies. The IC package includes an encapsulated layer, a first dielectric layer, and a second dielectric layer. The encapsulated layer forms the base of the IC package and includes the multiple dies. The first dielectric layer positioned between the encapsulated layer and the second layer. The first dielectric layer includes vias to connect to the input/ouput pads of active surfaces of the multiple dies. The second dielectric layer includes interconnect layers where at least one of the interconnect layers forms an electrical path to connect at least two of the multiple dies together. According to embodiments of the present disclosure, the IC package enables a high manufacturing yield due to large tolerances allowed for selection of dies. Embodiments of the present disclosure also increase an amount of input/output interconnection between multiple dies in the IC package. Embodiments of the present disclosure further enable lower manufacturing costs because of the use of mature reconstituted dies and redistribution layer technologies and the lack of a need for an interposer to connect multiple dies.

公开(公告)号：US20170229961A1

公开(公告)日：2017-08-10

申请号：US15073484

申请日：2016-03-17

申请人： BROADCOM CORPORATION

发明人： He Zhang ,  Jinghua Zhang ,  Yow Ching Cheng ,  Junle Pan ,  David Seng Poh Ho

IPC分类号： H02M3/158

CPC分类号： H02M3/158 ,  H02M3/1584 ,  H02M2003/1586

摘要： A regulator circuit includes a multiphase ramp generator circuit, an amplifier circuit configured to receive a plurality of phase sense signals and provide a plurality of respective error signals, and an adder circuit configured to receive the error signals and ramp generator signals. The ramp generator signals are received from the multiphase ramp generator circuit and the adder circuit is configured to provide a plurality of respective adjusted ramp generator signals. The regulator can be a multiphase switching regulator circuit.

公开(公告)号：US09712442B2

公开(公告)日：2017-07-18

申请号：US14072744

申请日：2013-11-05

申请人： BROADCOM CORPORATION

发明人： David Wu ,  Darren Duane Neuman ,  Flaviu Dorin Turean ,  Rajesh Shankarrao Mamidwar ,  Anand Tongle ,  Predrag Kostic

IPC分类号： H04L12/879 ,  H04L12/861 ,  H04L12/747

CPC分类号： H04L45/742 ,  H04L49/901 ,  H04L49/9042 ,  H04L49/9047 ,  H04L49/9078

摘要： A system for efficient memory bandwidth utilization may include a depacketizer, a packetizer, and a processor core. The depacketizer may generate header information items from received packets, where the header information items include sufficient information for the processor core to process the packets without accessing the payloads from off-chip memory. The depacketizer may accumulate multiple payloads and may write the multiple payloads to the off-chip memory in a single memory transaction when a threshold amount of the payloads have been accumulated. The processor core may receive the header information items and may generate a single descriptor for accessing multiple payloads corresponding to the header information items from the off-chip memory. The packetizer may generate a header for each payload based at least on on-chip information and without accessing off-chip memory. Thus, the subject system provides efficient memory bandwidth utilization, e.g. at least by reducing the number of off-chip memory accesses.

公开(公告)号：US09705890B2

公开(公告)日：2017-07-11

申请号：US14726917

申请日：2015-06-01

申请人： BROADCOM CORPORATION

发明人： Xuemin (Sherman) Chen

IPC分类号： H04L29/06 ,  H04N21/443 ,  H04N21/4627 ,  H04N21/81

CPC分类号： H04L63/105 ,  H04L63/0823 ,  H04L63/18 ,  H04N21/443 ,  H04N21/4627 ,  H04N21/8166

摘要： A media processing device, such as a set top box, having a plurality of selectable hardware and software components for supporting multiple media pathways providing differing levels of security. In general, each security level corresponds to a particular certification service boundary definition(s) or key/authentication and security management scheme for managing resources such as hardware acceleration blocks and software interfaces. Different sets of components may be adaptively employed to ensure composited compliance with one or more security constraints and to address component unavailability. Security constraints may be applied, for example, on a source or media specific basis, and different versions of a media item may be provided over multiple pathways providing corresponding levels of security. In one embodiment, a service operator or content provider may provide requisite certification or security requirements, or otherwise assist in selection of pathway components.

公开(公告)号：US20170171851A1

公开(公告)日：2017-06-15

申请号：US15339384

申请日：2016-10-31

申请人： Broadcom Corporation

发明人： Zhou Lan ,  Matthew James Fischer

IPC分类号： H04W72/04 ,  H04L29/12 ,  H04L5/00

CPC分类号： H04W72/048 ,  H04L5/0023 ,  H04L5/0042

摘要： A wireless communication device (alternatively, device, WDEV, etc.) includes at least one processing circuitry configured to support communications with other WDEV(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processing circuitry, among other possible circuitries, components, elements, etc. to support communications with other WDEV(s) and to generate and process signals for such communications. A WDEV determines capabilities of other WDEVs and generates a first orthogonal frequency division multiple access (OFDMA) frame that includes resource unit (RU) allocation specified for the other WDEVs and media access controller (MAC) padding (e.g., selected based on capability of at least one of the other WDEVs. The WDEV then transmits the first OFDMA frame to the other WDEVs to be processed by them and then receives a second OFDMA frame from the other WDEVs based on the RU allocation.

公开(公告)号：US20170141585A1

公开(公告)日：2017-05-18

申请号：US14965400

申请日：2015-12-10

申请人： BROADCOM CORPORATION

发明人： John Stuart Walley ,  David Lee Recker

IPC分类号： H02J5/00 ,  H02J7/02 ,  H02J50/10

CPC分类号： H02J5/005 ,  H02J7/025 ,  H02J50/10 ,  H02J50/12 ,  H02M3/335 ,  H02M7/1626

摘要： Aspects of the subject disclosure may include, for example, a power receiving unit that includes a first wireless power receiver configured to receive a first wireless power signal in accordance with a first wireless power standard and a second wireless power receiver configured to receive a second wireless power signal in accordance with a second wireless power standard. A controllable rectifier circuit is configured to rectify either the first wireless power signal or the second wireless power signal. The controllable rectifier circuit includes a rectifier circuit configured to generate a rectified voltage from the wireless power signal, based on switch control signals. A rectifier control circuit is configured to determine whether the first wireless power signal or the second wireless power signal is received and to generate the switch control signals, based on whether the first wireless power signal or the second wireless power signal is received.

公开(公告)号：US20170134738A1

公开(公告)日：2017-05-11

申请号：US15414333

申请日：2017-01-24

申请人： Broadcom Corporation

发明人： Darren Neuman

IPC分类号： H04N19/40 ,  H04N19/174 ,  H04L29/06 ,  H04L12/58 ,  H04L29/08 ,  H04N19/162 ,  H04N19/172

CPC分类号： H04N19/40 ,  H04L51/32 ,  H04L63/08 ,  H04L63/10 ,  H04L67/141 ,  H04L67/146 ,  H04L67/306 ,  H04L67/40 ,  H04N19/107 ,  H04N19/132 ,  H04N19/162 ,  H04N19/172 ,  H04N19/174 ,  H04W4/21

摘要： In some aspects, the disclosure is directed to methods and systems for encoding and sharing media clips via a social networking provider responsive to a user interaction via a single “like” or “share” button. Media may be constantly buffered as the user watches the program, such that the user need not initiate recording, enabling the user to quickly share amusing or media clips as they happen live. The device may decode, scale or subsample, and compress or re-encode the media to take up less space in a buffer of the device and/or to comply with copyright fair use requirements. Responsive to the user interaction or “share” command, the device may transfer the contents of the buffer to a social media service along with instructions to generate a post to the social network identifying the user, media, and/or buffer contents.