Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.106/CHE/2012 A
(19) INDIA
(22) Date of filing of Application :10/01/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : RECEIVER CIRCUITS AND SYSTEMS FOR RECEIVING MEDIUM WAVE AND SHORT
WAVE SIGNALS
(51) International classification :H03H
(31) Priority Document No :13/007,572
(32) Priority Date :14/01/2011
(33) Name of priority country :U.S.A.
(86) International Application No
:NA
Filing Date
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number
:NA
Filing Date
:NA
(71)Name of Applicant :
1)SILICON LABORATORIES INC.
Address of Applicant :400 W. CESAR CHAVEZ, AUSTIN,
TX 78701 U.S.A.
(72)Name of Inventor :
1)WILLINGHAM, SCOTT
2)SARDA, VIVEK
(57) Abstract :
A receiver includes a first terminal for receiving an RF signal having a frequency of less than approximately 60 MHz, a second
terminal, and a receive path having an input coupled to the first terminal and an output for providing a demodulated RF signal.
The receiver further includes a detector coupled to the receive path for detecting a signal parameter in the RF signal and a
controller coupled to the detector and to the second terminal. The controller provides the multiplex signal in a tuning state to the
second terminal to selectively provide one of a first RF signal and a second RF signal to the first terminal and to determine at least
one of a first parameter of the first RF signal and a second parameter of the second RF signal. The controller provides the
multiplex signal in an operating state based on the first parameter and the second parameter.
No. of Pages : 36 No. of Claims : 28
The Patent Office Journal 21/06/2013 13814