公开(公告)号：WO2008042134A3

公开(公告)日：2008-11-20

申请号：PCT/US2007020564

申请日：2007-09-21

Applicant: SILICON LAB INC ,  TAIPALE DANA ,  ELENES JAVAIER

Inventor： TAIPALE DANA ,  ELENES JAVAIER

IPC: H03D1/00

CPC classification number: H03D1/2245

Abstract: In one aspect, the present invention includes a method for receiving an amplitude modulation (AM) signal in a receiver and performing a coordinate rotation digital computer (CORDIC) operation in obtaining a demodulated AM signal. The demodulated AM signal may be obtained from a magnitude output of the CORDIC operation or as a real output of a multiplication between a complex baseband signal and a demodulating carrier signal generated in a feedback loop.

Abstract translation: 在一个方面，本发明包括一种用于在接收机中接收幅度调制（AM）信号并且执行坐标旋转数字计算机（CORDIC）操作以获得解调的AM信号的方法。 解调后的AM信号可以从CORDIC操作的幅度输出中获得，或者作为在反馈回路中生成的复基带信号和解调载波信号之间的乘法的实际输出。

公开(公告)号：WO2007005664A3

公开(公告)日：2007-03-29

申请号：PCT/US2006025691

申请日：2006-06-29

Applicant: SILICON LAB INC ,  DER LAWRENCE ,  TAIPALE DANA ,  WILLINGHAM SCOTT D

Inventor： DER LAWRENCE ,  TAIPALE DANA ,  WILLINGHAM SCOTT D

IPC: H03J1/00

CPC classification number: H03J1/00 ,  H03B2201/025 ,  H03J3/20

Abstract: In one embodiment, the present invention includes an apparatus having a first capacitor coupled between a first node and a second node, a second capacitor coupled between the second node and a reference potential, and a third capacitor coupled between the second node and a switch, where the switch is controllable to couple the third capacitor to the second node. Using such an apparatus small changes in capacitance and correspondingly small changes in frequency may be effected. Other embodiments are directed to calibration of one or more capacitor banks.

Abstract translation: 在一个实施例中，本发明包括具有耦合在第一节点和第二节点之间的第一电容器，耦合在第二节点和参考电位之间的第二电容器以及耦合在第二节点和开关之间的第三电容器的装置， 其中开关可控制以将第三电容器耦合到第二节点。 使用这种装置可以实现电容的小的变化和相应的小的频率变化。 其他实施例涉及一个或多个电容器组的校准。

公开(公告)号：WO2009064658A3

公开(公告)日：2009-11-05

申请号：PCT/US2008082645

申请日：2008-11-06

Applicant: SILICON LAB INC ,  TAIPALE DANA

Inventor： TAIPALE DANA

IPC: H04H40/18

CPC classification number: H04H40/18 ,  H04B1/1646 ,  H04H2201/13

Abstract: A method performed by a receiver is provided. The method includes generating an RDS/RBDS candidate codeword from a set of RDS/RBDS symbols where the RDS/RBDS candidate codeword has a subset of RDS/RBDS values that differs from corresponding subsets of RDS/RBDS values in all other possible RDS/RBDS codewords and determining whether the RDS/RBDS candidate codeword meets an acceptance criterion by comparing a first subset of reliability values determined from the set of RDS/RBDS symbols and having signs that differ from corresponding signs in the subset of RDS/RBDS values with a second subset of reliability values determined from the set of RDS/RBDS symbols and mutually exclusive with the first subset of the reliability values. A first number of values in the first and the second subsets of reliability values is less than a second number of values in the RDS/RBDS candidate codeword.

Abstract translation: 提供了由接收机执行的方法。 该方法包括从一组RDS / RBDS符号生成RDS / RBDS候选码字，其中RDS / RBDS候选码字具有与所有其他可能的RDS / RBDS中的RDS / RBDS值的对应子集不同的RDS / RBDS值的子集 通过将从所述一组RDS / RBDS符号确定并且具有与所述RDS / RBDS值的所述子集中的对应符号不同的符号的可靠性值的第一子集与第二第二符号进行比较来确定所述RDS / RBDS候选码字是否满足接受准则 从该组RDS / RBDS符号确定并且与可靠性值的第一子集互斥的可靠性值的子集。 可靠性值的第一和第二子集中的第一数量的值小于RDS / RBDS候选码字中的第二数量的值。

公开(公告)号：WO2009015146A2

公开(公告)日：2009-01-29

申请号：PCT/US2008070765

申请日：2008-07-22

Applicant: SILICON LAB INC ,  TAIPALE DANA ,  CHAMPAGNE GERALD

Inventor： TAIPALE DANA ,  CHAMPAGNE GERALD

IPC: H04H40/18

CPC classification number: H04H40/18 ,  H04H60/11 ,  H04H2201/13 ,  H04L1/0045

Abstract: A receiver including first circuitry configured to combine corresponding soft decision values from at least two groups of RDS/RBDS data transmitted as part of a broadcast channel to generate a set of combined values and second circuitry configured to identify a subset of the combined values that indicate a relatively constant subset of the received values from the at least two groups of the RDS/RBDS data is provided.

Abstract translation: 一种接收机，包括第一电路，其被配置为组合来自作为广播信道的一部分传输的至少两组RDS / RBDS数据的相应软判决值，以生成一组组合值，以及第二电路，其被配置为识别指示的组合值的子集 提供了来自RDS / RBDS数据的至少两组的接收值的相对恒定的子集。