公开(公告)号：US08335484B1

公开(公告)日：2012-12-18

申请号：US11496767

申请日：2006-07-31

申请人： Oren Arad ,  Sridhar Sharma

发明人： Oren Arad ,  Sridhar Sharma

IPC分类号： H04B1/16

CPC分类号： H04B1/0003 ,  H03G3/3078

摘要： Systems and methods for dynamically controlling an analog-to-digital converter (ADC) in order to conserve power are provided. In exemplary embodiments, a receiver device comprises a tuner configured to receive a signal, at least one programmable analog-to-digital converter (ADC), and a digital signal processing hardware comprising a control logic. The exemplary control logic is configured to generate a control signal to configure components within the receiver device to conserve power at the ADC.

摘要翻译： 提供了用于动态控制模数转换器（ADC）以节省功率的系统和方法。 在示例性实施例中，接收机设备包括被配置为接收信号的调谐器，至少一个可编程模数转换器（ADC）以及包括控制逻辑的数字信号处理硬件。 示例性控制逻辑被配置为产生控制信号以配置接收机设备内的组件以节省ADC处的功率。

公开(公告)号：US20060215590A1

公开(公告)日：2006-09-28

申请号：US11389277

申请日：2006-03-24

申请人： Sridhar Sharma ,  Oren Arad

发明人： Sridhar Sharma ,  Oren Arad

IPC分类号： G08C17/00

CPC分类号： H04H20/426 ,  H04H20/42 ,  H04H20/72 ,  H04H2201/20

摘要： Systems and methods for providing a low power receiver device using fine grained time division are provided. In one embodiment, the receiver device comprises a tuner, a demodulator configured to demodulate at least one sampled signal, a payload processor configured to process at least one demodulated signal into an output format, and a time division control logic configured to generate a control signal to switch at least one component within the receiver device between modes to conserve power. The at least one component may be switched between an active mode, a standby mode, a power off mode, and a low power mode. In further embodiments, the at least one component may be switched between staggered modes.

公开(公告)号：US20120213217A1

公开(公告)日：2012-08-23

申请号：US13463725

申请日：2012-05-03

申请人： Oren Arad ,  Sridhar Sharma ,  Shay Waxman ,  David Bydeley

发明人： Oren Arad ,  Sridhar Sharma ,  Shay Waxman ,  David Bydeley

IPC分类号： H04J3/00

CPC分类号： H04L5/22 ,  H04L5/0007 ,  H04L27/2626

摘要： Systems and methods of decoding data streams and conserving power are described. In some embodiments, a stream of data containing audio and other data is divided into a plurality of timeslots. A first timeslot of the plurality of timeslots is allocated to a first service. A grant allocation message which indicates a location of the first timeslot allocated to the first service is generated. The grant allocation message and the plurality of timeslots are transmitted to a receiver. The transmission system and receiver may be compatible with NRSC-5. The receiver may receive and decode the grant allocation message to identify OFDM symbols that carry information regarding the first service. The receiver may also receive the plurality of timeslots. The receiver may set a power mode of a component during OFDM symbols that indicate a status of the first service.

摘要翻译： 描述了解码数据流和节省功率的系统和方法。 在一些实施例中，包含音频和其他数据的数据流被划分成多个时隙。 多个时隙中的第一时隙被分配给第一服务。 生成指示分配给第一服务的第一时隙的位置的授权分配消息。 授权分配消息和多个时隙被发送到接收机。 传输系统和接收机可能与NRSC-5兼容。 接收机可以接收和解码授权分配消息以识别载有关于第一服务的信息的OFDM符号。 接收机也可以接收多个时隙。 接收机可以在指示第一服务的状态的OFDM符号期间设置分量的功率模式。

公开(公告)号：US08199769B2

公开(公告)日：2012-06-12

申请号：US12154882

申请日：2008-05-27

申请人： Oren Arad ,  Sridhar Sharma ,  Shay Waxman ,  David Bydeley

发明人： Oren Arad ,  Sridhar Sharma ,  Shay Waxman ,  David Bydeley

IPC分类号： H04L12/43

CPC分类号： H04L5/22 ,  H04L5/0007 ,  H04L27/2626

摘要： Systems and methods of decoding data streams and conserving power are described. In some embodiments, a stream of data containing audio and other data is divided into a plurality of timeslots. A first timeslot of the plurality of timeslots is allocated to a first service. A grant location message which indicates a location of the first timeslot allocated to the first service is generated. The grant allocation message and the plurality of timeslots are transmitted to a receiver.The receiver may receive and decode the grant allocation message to identify OFDM symbols that carry information regarding the first service. The receiver may also receive the plurality of timeslots. The receiver may set a power mode of a component during OFDM symbols that indicate a status of the first service.

摘要翻译： 描述了解码数据流和节省功率的系统和方法。 在一些实施例中，包含音频和其他数据的数据流被划分成多个时隙。 多个时隙中的第一时隙被分配给第一服务。 生成指示分配给第一服务的第一时隙的位置的授权位置消息。 授权分配消息和多个时隙被发送到接收机。 接收机可以接收和解码授权分配消息以识别载有关于第一服务的信息的OFDM符号。 接收机也可以接收多个时隙。 接收机可以在指示第一服务的状态的OFDM符号期间设置分量的功率模式。

公开(公告)号：US20080291857A1

公开(公告)日：2008-11-27

申请号：US12154882

申请日：2008-05-27

申请人： Oren Arad ,  Sridhar Sharma ,  Shay Waxman ,  David Bydeley

发明人： Oren Arad ,  Sridhar Sharma ,  Shay Waxman ,  David Bydeley

IPC分类号： G08C17/02 ,  H04J3/00

CPC分类号： H04L5/22 ,  H04L5/0007 ,  H04L27/2626

摘要： Systems and methods of decoding data streams and conserving power are described. In some embodiments, a stream of data containing audio and other data is divided into a plurality of timeslots. A first timeslot of the plurality of timeslots is allocated to a first service. A grant location message which indicates a location of the first timeslot allocated to the first service is generated. The grant allocation message and the plurality of timeslots are transmitted to a receiver.The receiver may receive and decode the grant allocation message to identify OFDM symbols that carry information regarding the first service. The receiver may also receive the plurality of timeslots. The receiver may set a power mode of a component during OFDM symbols that indicate a status of the first service.

摘要翻译： 描述了解码数据流和节省功率的系统和方法。 在一些实施例中，包含音频和其他数据的数据流被划分成多个时隙。 多个时隙中的第一时隙被分配给第一服务。 生成指示分配给第一服务的第一时隙的位置的授权位置消息。 授权分配消息和多个时隙被发送到接收机。 接收机可以接收和解码授权分配消息以识别载有关于第一服务的信息的OFDM符号。 接收机也可以接收多个时隙。 接收机可以在指示第一服务的状态的OFDM符号期间设置分量的功率模式。

公开(公告)号：US08824447B2

公开(公告)日：2014-09-02

申请号：US13463725

申请日：2012-05-03

申请人： Oren Arad ,  Sridhar Sharma ,  Shay Waxman ,  David Bydeley

发明人： Oren Arad ,  Sridhar Sharma ,  Shay Waxman ,  David Bydeley

IPC分类号： H04B7/212

CPC分类号： H04L5/22 ,  H04L5/0007 ,  H04L27/2626

摘要： Systems and methods of decoding data streams and conserving power are described. In some embodiments, a stream of data containing audio and other data is divided into a plurality of timeslots. A first timeslot of the plurality of timeslots is allocated to a first service. A grant allocation message which indicates a location of the first timeslot allocated to the first service is generated. The grant allocation message and the plurality of timeslots are transmitted to a receiver. The transmission system and receiver may be compatible with NRSC-5. The receiver may receive and decode the grant allocation message to identify OFDM symbols that carry information regarding the first service. The receiver may also receive the plurality of timeslots. The receiver may set a power mode of a component during OFDM symbols that indicate a status of the first service.

摘要翻译： 描述了解码数据流和节省功率的系统和方法。 在一些实施例中，包含音频和其他数据的数据流被划分成多个时隙。 多个时隙中的第一时隙被分配给第一服务。 生成指示分配给第一服务的第一时隙的位置的授权分配消息。 授权分配消息和多个时隙被发送到接收机。 传输系统和接收机可能与NRSC-5兼容。 接收机可以接收和解码授权分配消息以识别载有关于第一服务的信息的OFDM符号。 接收机也可以接收多个时隙。 接收机可以在指示第一服务的状态的OFDM符号期间设置分量的功率模式。

公开(公告)号：US20190139403A1

公开(公告)日：2019-05-09

申请号：US16235694

申请日：2018-12-28

申请人： S M Iftekharul Alam ,  David I. Gonzalez Aguirre ,  Sridhar Sharma ,  Kathiravetpillai Sivanesan ,  Ignacio Alvarez

发明人： S M Iftekharul Alam ,  David I. Gonzalez Aguirre ,  Sridhar Sharma ,  Kathiravetpillai Sivanesan ,  Ignacio Alvarez

IPC分类号： G08G1/01 ,  G06F16/29 ,  G06T17/00 ,  G01C21/34 ,  H04W4/40

摘要： Systems, apparatuses and methods may provide for vehicle technology that detects one or more differences between a crowdsourced map of an ambient environment and a real-time volumetric map of the ambient environment and sends a first message via a vehicle-to-vehicle (V2V) link, wherein the difference(s) are represented in the first message at a first resolution. Additionally, the vehicle technology sends a second message via a vehicle-to-infrastructure (V2I) link, wherein the difference(s) are represented in the second message at a second resolution, and wherein the first resolution is less than the second resolution. Moreover, server technology may integrate a first octree representation and a second octree representation into a dynamic layer associated with the crowdsourced map.

公开(公告)号：US08015368B2

公开(公告)日：2011-09-06

申请号：US12148747

申请日：2008-04-21

申请人： Sridhar Sharma ,  Binuraj Ravindran ,  Jeffrey V. Hill

发明人： Sridhar Sharma ,  Binuraj Ravindran ,  Jeffrey V. Hill

IPC分类号： G06F12/00

CPC分类号： G06F15/167 ,  G06F9/30014 ,  G06F9/3012 ,  G06F9/3877 ,  G06F9/3897

摘要： Enhancements to hardware architectures (e.g., a RISC processor or a DSP processor) to accelerate spectral band replication (SBR) processing are described. In some embodiments, instruction extensions configure a reconfigurable processor to accelerat SBR and other audio processing. In addition to the instruction extensions, execution units (e.g., multiplication and accumulation units (MACs)) may operate in parallel to reduce the number of audio processing cycles. Performance may be further enhanced through the use of source and destination units which are configured to work with the execution units and quickly fetch and store source and destination operands.

摘要翻译： 描述了用于加速频谱带复制（SBR）处理的硬件架构（例如RISC处理器或DSP处理器）的增强。 在一些实施例中，指令扩展配置可重构处理器以加速SBR和其他音频处理。 除了指令扩展之外，执行单元（例如乘法和累加单元（MAC））可以并行操作以减少音频处理周期的数量。 可以通过使用配置为与执行单元一起工作并快速获取和存储源和目标操作数的源和目标单元来进一步增强性能。

公开(公告)号：US11139990B2

公开(公告)日：2021-10-05

申请号：US16236397

申请日：2018-12-29

申请人： Moreno Ambrosin ,  Kathiravetpillai Sivanesan ,  Rafael Misoczki ,  Sridhar Sharma ,  Ignacio Alvarez

发明人： Moreno Ambrosin ,  Kathiravetpillai Sivanesan ,  Rafael Misoczki ,  Sridhar Sharma ,  Ignacio Alvarez

IPC分类号： H04L9/32 ,  H04L9/08 ,  H04L9/06

摘要： Systems, apparatuses and methods may provide for infrastructure node technology that conducts a mutual authentication with a vehicle and verifies, if the mutual authentication is successful, location information received from the vehicle. The infrastructure node technology may also send a token to the vehicle if the location information is verified, wherein the token includes an attestation that the vehicle was present in a location associated with the location information at a specified moment in time. Additionally, vehicle technology may conduct a mutual authentication with an infrastructure node and send, if the mutual authentication is successful, location information to the infrastructure node. The vehicle technology may also receive a token from the infrastructure node.

公开(公告)号：US20190215695A1

公开(公告)日：2019-07-11

申请号：US16230971

申请日：2018-12-21

申请人： Liuyang Yang ,  Debabani Choudhury ,  Sridhar Sharma ,  Kathiravetpillai Sivanesan ,  Justin Gottschlich ,  Zheng Zhang ,  Yair Yona ,  Xiruo Liu ,  Moreno Ambrosin ,  Kuilin Clark Chen

发明人： Liuyang Yang ,  Debabani Choudhury ,  Sridhar Sharma ,  Kathiravetpillai Sivanesan ,  Justin Gottschlich ,  Zheng Zhang ,  Yair Yona ,  Xiruo Liu ,  Moreno Ambrosin ,  Kuilin Clark Chen

IPC分类号： H04W12/12 ,  H04W12/06 ,  H04W4/40

CPC分类号： H04W12/12 ,  H04W4/40 ,  H04W12/06

摘要： Methods, apparatus, systems, and articles of manufacture are disclosed to detect attacks in V2X networks. An example apparatus includes a challenge handler to (a) transmit a first challenge packet to a first vehicle to request a transmission of a first response, (b) instruct a second challenge packet to be transmitted to a second vehicle to request a transmission of a second response, (c) increment a first counter when the first response is not obtained, (d) increment a second counter when the second response is not obtained, and (e) after repeating (a)-(d), determine that the first and second vehicles are phantom vehicles associated with an attacker with a half-duplex radio when at least one of the first or second counters satisfy a threshold, and a network interface to instruct a third vehicle associated with the V2X network to ignore future messages from the phantom vehicles based on the determination.