公开(公告)号：US09787388B1

公开(公告)日：2017-10-10

申请号：US15086248

申请日：2016-03-31

Applicant: Silicon Laboratories Inc.

Inventor： Russell Croman ,  Nebojsa Stanic ,  Michael Johnson ,  Dan B. Kasha ,  Michael R. May

IPC: H04B1/18 ,  H04B7/08 ,  H04B1/00 ,  H04B1/16

CPC classification number: H04B7/08 ,  H04B1/0064 ,  H04B1/0075 ,  H04B1/16

Abstract: In an example, a method includes: in a first mode, causing a first tuner of an entertainment system to receive and process a first RF signal from a first antenna configured for a first band to output a first audio signal of a first radio station and causing a second tuner of the entertainment system to receive a second RF signal from a second antenna configured for the first band to determine signal quality metrics for one or more radio stations of the first band; in a second mode, causing the first tuner to output a first signal representation of the first RF signal and causing the second tuner to receive and process the second RF signal to output a second signal representation of the second RF signal; and causing a phase diversity combining circuit to process the first and second signal representations to output an audio signal of the first radio station, without disruption of output from the entertainment system of a broadcast of the first radio station.

公开(公告)号：US09190975B2

公开(公告)日：2015-11-17

申请号：US14040000

申请日：2013-09-27

Applicant: SILICON LABORATORIES INC.

Inventor： Dan B. Kasha ,  Russell Croman ,  Mike R. May ,  Mark W. May ,  Navin Harwalkar ,  Tim Stroud

IPC: H04B1/00 ,  H03G3/30

CPC classification number: H03G3/3052

Abstract: A radio receiver and method of operating the same are disclosed. In one embodiment, the radio receiver may include a RF receive path configured to convey a first radio signal within a first band to a radio tuning circuit. The RF receive path may be controllable using a first AGC circuit. The radio receiver may also include a loop-through path configured to convey a second radio signal within a second band between an input and an output of the radio receiver. The second band may be different from the first band. The loop-through path may be controllable using a second AGC circuit.

Abstract translation: 公开了一种无线电接收机及其操作方法。 在一个实施例中，无线电接收机可以包括被配置为将第一频带内的第一无线电信号传送到无线电调谐电路的RF接收路径。 RF接收路径可以使用第一AGC电路来控制。 无线电接收机还可以包括循环路径，其被配置为在无线电接收机的输入和输出之间的第二频带内传送第二无线电信号。 第二频带可以不同于第一频带。 可以使用第二AGC电路来控制环通路径。

公开(公告)号：US09178592B1

公开(公告)日：2015-11-03

申请号：US14340004

申请日：2014-07-24

Applicant: Silicon Laboratories Inc.

Inventor： Younes Djadi ,  Russell Croman ,  Russell Schultz ,  Scott T. Haban

IPC: H03B1/02 ,  H04B7/06 ,  H04B1/00

CPC classification number: H04B7/08 ,  H04B1/0007 ,  H04B1/40 ,  H04B7/06

Abstract: Systems and methods are disclosed that implement multiple inter-chip (IC) links to communicate digital signals and data between multiple tuner circuit chips of a radio frequency (RF) antenna diversity system. The multiple IC communication links may be employed, for example, to simultaneously communicate different signals and/or data between individual tuner circuit chips of a multi-signal type antenna diversity system in an asynchronous manner, and may be employed to achieve simultaneous antenna diversity for multiple RF signal types using a scalable IC communication link architecture that includes multiple IC communication links to interconnect a varying number of RF tuner circuit chips.

Abstract translation: 公开了实现多个芯片间（IC）链路以在射频（RF）天线分集系统的多个调谐器电路芯片之间传送数字信号和数据的系统和方法。 可以采用多个IC通信链路，例如，以异步方式同时在多信号型天线分集系统的各个调谐器电路芯片之间传送不同的信号和/或数据，并且可以用于实现同时的天线分集 使用包括多个IC通信链路以便互连多个RF调谐器电路芯片的可扩展IC通信链路架构的多个RF信号类型。

公开(公告)号：US20150094007A1

公开(公告)日：2015-04-02

申请号：US14040000

申请日：2013-09-27

Applicant: SILICON LABORATORIES INC.

Inventor： Dan B. Kasha ,  Russell Croman ,  Mike R. May ,  Mark W. May ,  Navin Harwalkar ,  Tim Stroud

IPC: H03G3/30

CPC classification number: H03G3/3052

Abstract: A radio receiver and method of operating the same are disclosed. In one embodiment, the radio receiver may include a RF receive path configured to convey a first radio signal within a first band to a radio tuning circuit. The RF receive path may be controllable using a first AGC circuit. The radio receiver may also include a loop-through path configured to convey a second radio signal within a second band between an input and an output of the radio receiver. The second band may be different from the first band. The loop-through path may be controllable using a second AGC circuit.

Abstract translation: 公开了一种无线电接收机及其操作方法。 在一个实施例中，无线电接收机可以包括被配置为将第一频带内的第一无线电信号传送到无线电调谐电路的RF接收路径。 RF接收路径可以使用第一AGC电路来控制。 无线电接收机还可以包括循环路径，其被配置为在无线电接收机的输入和输出之间的第二频带内传送第二无线电信号。 第二频带可以不同于第一频带。 可以使用第二AGC电路来控制环通路径。