公开(公告)号：US08873691B2

公开(公告)日：2014-10-28

申请号：US14022513

申请日：2013-09-10

Applicant: Broadcom Corporation

Inventor： Robert William Hulvey ,  Hyungjin Kim ,  Steven Deane Hall ,  Nicholas Michael Carbone ,  Siukai Mak

IPC: H04L7/00

CPC classification number: H04L7/041

Abstract: Disclosed are various embodiments for circuitry that generates a sync code for wireless transmission. The system generates a sync word according to an identifier of the transmitter, the sync word being unique under a cyclic shift of the sync word. The system inserts a plurality of instances of the sync word into a data stream. The system also transmits, via the transmitter, the data stream to a receiver, the receiver being operable to perform a sliding correlation operation on the sync word.

Abstract translation: 公开了用于生成用于无线传输的同步码的电路的各种实施例。 该系统根据发送器的标识符产生同步字，同步字在同步字的循环移位下是唯一的。 系统将同步字的多个实例插入到数据流中。 该系统还经由发射机将数据流发送到接收机，该接收机可操作以对同步字执行滑动相关操作。

公开(公告)号：US20140072083A1

公开(公告)日：2014-03-13

申请号：US14022513

申请日：2013-09-10

Applicant: Broadcom Corporation

Inventor： Robert William Hulvey ,  Hyungjin Kim ,  Steven Deane Hall ,  Nicholas Michael Carbone ,  Siukai Mak

IPC: H04L7/04

CPC classification number: H04L7/041

Abstract: Disclosed are various embodiments for circuitry that generates a sync code for wireless transmission. The system generates a sync word according to an identifier of the transmitter, the sync word being unique under a cyclic shift of the sync word. The system inserts a plurality of instances of the sync word into a data stream. The system also transmits, via the transmitter, the data stream to a receiver, the receiver being operable to perform a sliding correlation operation on the sync word.

Abstract translation: 公开了用于生成用于无线传输的同步码的电路的各种实施例。 该系统根据发送器的标识符产生同步字，同步字在同步字的循环移位下是唯一的。 系统将同步字的多个实例插入到数据流中。 该系统还经由发射机将数据流发送到接收机，该接收机可操作以对同步字执行滑动相关操作。

公开(公告)号：US20130225084A1

公开(公告)日：2013-08-29

申请号：US13859189

申请日：2013-04-09

Applicant: Broadcom Corporation

Inventor： Steven Deane Hall ,  Brima Babatunde Ibrahim ,  Hea Joung Kim ,  Yuan Zhuang ,  Langford Wasada ,  Bojko Marholev ,  Shawn Ding ,  Latha Roy (Caliaperoumal) ,  Satya Prasad Srinivas

IPC: H04W8/00

CPC classification number: H04W8/005 ,  H04W16/14 ,  H04W48/16

Abstract: Methods and systems for wireless communication are disclosed and may include controlling one or more scans of a received signal detection frequency across a frequency range and storing a magnitude of the received signal at each frequency where the magnitude exceeds a threshold level. A type of one or more signals in the received signal may be determined based on a bandwidth of the signals. A Bluetooth page/inquiry scan may be initiated if the determined type is a page/inquiry signal, and scans may be continued if the determined type may not be a page/inquiry signal. The scans may be repeated on a periodic basis and may be controlled utilizing a voltage controlled oscillator. Each of the scans may include a plurality of discrete frequency steps or a continuous frequency ramp. The controlling may include a start frequency, an end frequency and a frequency step size for the scans.

公开(公告)号：US20150334518A1

公开(公告)日：2015-11-19

申请号：US14811292

申请日：2015-07-28

Applicant: Broadcom Corporation

Inventor： Steven Deane Hall ,  Mohamed Awad ,  Theodore Trost

IPC: H04W4/00 ,  H04W52/02 ,  H04W24/02 ,  H04B5/00

CPC classification number: H04W24/02 ,  H04B5/0037 ,  H04B5/0075 ,  H04W4/80 ,  H04W52/0277 ,  H04W52/028 ,  Y02D70/166 ,  Y02D70/22 ,  Y02D70/42

Abstract: A mobile communication device has a processor, a radio, a near field communication (NFC) device, a battery, and memory for storing data. The power level of the battery is measured. When the measured power level is above a first predetermined level, power is provided to the radio to allow communication. Sufficient power is provided to operate the NFC device as a reader and a tag. When the measured power level of the battery falls below the first predetermined level, battery power to the radio is shut off. Sufficient power is maintained to the NFC device to allow it to operate only as a tag. Sufficient power is maintained to the memory to retain the data stored in the memory. When the measured power level of the battery falls below a second predetermined level, the NFC device is required to harvest all of its power from the field.

Abstract translation: 移动通信设备具有处理器，无线电，近场通信（NFC）设备，电池和用于存储数据的存储器。 测量电池的功率电平。 当测量的功率水平高于第一预定水平时，向无线电提供功率以允许通信。 提供足够的功率来作为读取器和标签来操作NFC设备。 当电池的测量功率水平低于第一预定水平时，关闭无线电的电池电量。 足够的功率被保持到NFC设备，以允许其仅作为标签来操作。 将足够的功率维持到存储器以保持存储在存储器中的数据。 当电池的测量功率水平下降到第二预定水平以下时，需要NFC装置从现场收集其所有功率。

公开(公告)号：US20150118956A1

公开(公告)日：2015-04-30

申请号：US14062389

申请日：2013-10-24

Applicant: Broadcom Corporation

Inventor： Prasanna Desai ,  John Walley ,  Henrik Tholstrup Jensen ,  Steven Deane Hall ,  Domitille Esnard-Domerego ,  Hea Joung Kim ,  Yasantha Rajakarunanayake ,  Ming Lin ,  Vadim Bishtein ,  Nhan Quang Tran ,  Ntsanderh Azenui

IPC: H04B5/00

CPC classification number: H04B5/0037 ,  H04B5/0031 ,  H04B5/0075

Abstract: A communication device includes a first and second near-field wireless (NFW) module operating with a first and second protocol, respectively. A module and method to improve the operational efficiency of the first and second NFW modules are disclosed. Due to close proximity between the first and second NFW modules in the communication device, an undesirable parasitic inductive coupling can occur that can degrade the operational performance of the modules. The first NFW module can be configured to control inductive coupling of the second NFW module when an electromagnetic (EM) field operating with the first protocol is detected. Additionally, the second NFW module can be configured to control inductive coupling of the first NFW module when an EM field operating with the second protocol is detected. Controlling the inductive coupling of each module can be performed by means of detuning an inductive coupling element of each module.

Abstract translation: 通信设备包括分别以第一和第二协议操作的第一和第二近场无线（NFW）模块。 公开了一种用于提高第一和第二NFW模块的操作效率的模块和方法。 由于通信设备中第一和第二NFW模块之间的紧密接近，可能会发生不利的寄生电感耦合，这可能降低模块的操作性能。 当检测到用第一协议操作的电磁（EM）场时，第一NFW模块可被配置为控制第二NFW模块的电感耦合。 另外，当检测到用第二协议操作的EM场时，第二NFW模块可被配置为控制第一NFW模块的电感耦合。 控制每个模块的电感耦合可以通过使每个模块的电感耦合元件失谐来实现。