US 11,811,435 B2
Semiconductor chip and receiving apparatus
Toshihiro Yamaguchi, Atsugi (JP); and Hiroshi Shono, Atsugi (JP)
Assigned to Sony Semiconductor Solutions Corporation, Atsugi (JP)
Appl. No. 17/606,546
Filed by Sony Semiconductor Solutions Corporation, Atsugi (JP)
PCT Filed Apr. 27, 2020, PCT No. PCT/JP2020/017980
§ 371(c)(1), (2) Date Oct. 26, 2021,
PCT Pub. No. WO2020/226090, PCT Pub. Date Nov. 12, 2020.
Claims priority of application No. 2019-088934 (JP), filed on May 9, 2019.
Prior Publication US 2022/0209797 A1, Jun. 30, 2022
Int. Cl. H04B 1/00 (2006.01); H04B 1/26 (2006.01)
CPC H04B 1/0057 (2013.01) [H04B 1/006 (2013.01); H04B 1/26 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A semiconductor chip, comprising:
an RF input terminal to receive an RF signal of terrestrial broadcasting, the RF signal having a first frequency;
a first-IF input terminal to receive a first-IF signal of satellite digital broadcasting, the first-IF signal having a second frequency;
a first filter configured to filter a signal in a first frequency band lower than a predetermined frequency representing a boundary between a first frequency band of the terrestrial broadcasting and a second frequency band of the satellite digital broadcasting, wherein the predetermined frequency is independent of a desired frequency selected by a user;
a second filter configured to filter a signal in a second frequency band equal to or higher than the predetermined frequency; and
a first switch configured to cause the RF signal to be input to the first filter or to the second filter by switching according to only the first frequency of the received RF signal and the predetermined frequency, and a second switch configured to cause the first-IF signal to be input to the first filter or to the second filter by switching according to only the second frequency of the received first-IF signal and the predetermined frequency.