公开(公告)号：US07840189B2

公开(公告)日：2010-11-23

申请号：US11721656

申请日：2004-12-15

Applicant: Paul Kelleher ,  Conor O'Keeffe

Inventor： Paul Kelleher ,  Conor O'Keeffe

IPC: H04B1/40

CPC classification number: H03L7/1976

Abstract: A wireless communication device comprises a frequency generation circuit employing a crystal oscillator operably coupled to a fractional-based synthesiser and a voltage-controlled oscillator. The fractional-based synthesiser utilises a ratio between an integer value and a fractional value to set a radio frequency signal of the voltage-controlled oscillator. An automatic frequency control scaling sub-system is operably coupled to a fractional-based synthesiser and configured to receive and use an AFC word to frequency scale the fractional value in a multiplicative manner to set a radio frequency supported by the fractional-based synthesiser. Preferably, an automatic frequency generation sub-system utilises Absolute Radio Frequency Channel Number and the cyclical nature of the fractional value.In this manner, a saving on hardware and software overheads associated with frequency channel selection for fractional-N type synthesizers can be made.

Abstract translation: 无线通信设备包括采用可操作地耦合到基于分数的合成器和压控振荡器的晶体振荡器的频率产生电路。 基于分数的合成器利用整数值和分数值之间的比率来设置压控振荡器的射频信号。 自动频率控制缩放子系统可操作地耦合到基于分数的合成器并且被配置为接收和使用AFC字以乘法方式对分数值进行频率缩放以设置由基于分数的合成器支持的射频。 优选地，自动频率发生子系统利用绝对射频信道号和分数值的周期性质。 以这种方式，可以节省与分数N型合成器的频率信道选择相关的硬件和软件开销。

公开(公告)号：US20100177690A1

公开(公告)日：2010-07-15

申请号：US12602783

申请日：2007-06-13

Applicant: Conor O'keeffe ,  Paul Kelleher

Inventor： Conor O'keeffe ,  Paul Kelleher

IPC: H04W88/02

CPC classification number: H04B1/40

Abstract: A wireless communication unit includes a baseband module and a radiofrequency module. A communication interface connects the baseband module to the radiofrequency module. Data can be communicated from the baseband module to the radiofrequency module and/or vice versa via the interface. The communication interface includes one or more data compression arrangement, for compressing original data to be transmitted over the communication interface, from a transmitting side of the communication interface to a receiving side of the communication interface, into compressed data and decompressing the compressed data after transmission and restoring the original data. The data compression arrangement may include a data compression unit at the transmitting side of the communication interface, and a data decompression unit at the receiving side of the communication interface.

Abstract translation: 无线通信单元包括基带模块和射频模块。 通信接口将基带模块连接到射频模块。 数据可以通过接口从基带模块传送到射频模块和/或反之亦然。 通信接口包括一个或多个数据压缩装置，用于将通过通信接口发送的原始数据从通信接口的发送侧压缩到通信接口的接收侧，成为压缩数据，并且在传输之后解压缩压缩数据 并恢复原始数据。 数据压缩装置可以包括在通信接口的发送侧的数据压缩单元，以及在通信接口的接收侧的数据解压缩单元。