US 9,882,589 B2Granted

Antenna system

AssigneeAsahi Glass Company, Limited

InventorsToshifumi Funatsu, Fumitaka Terashima

Life of this patent

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Abstract

An antenna system includes a first antenna to receive a broadcast wave in a predetermined frequency band; a second antenna to receive noise from a noise source; and a canceler to cancel a noise signal received by the second antenna from a received signal received by the first antenna, wherein a radio wave of the broadcast wave in the predetermined frequency band equally reaches the first antenna and the second antenna, wherein reception gain for the predetermined frequency band received by the second antenna is lower than reception gain for the predetermined frequency band received by the first antenna, and wherein an output of the noise received by the first antenna is adjusted to be equal to an output of the noise received by the second antenna.

Claims14

Dependent claims

An antenna system comprising:

a first antenna that includes a first antenna conductor and a first feeding point, wherein the first antenna is to receive a broadcast wave in a predetermined frequency band;
a second antenna that includes a second antenna conductor and a second feeding point, wherein the second antenna is to receive noise from a noise source;
and
a canceler to cancel a noise signal received by the second antenna from a received signal received by the first antenna,
wherein the first antenna and the second antenna are installed at respective locations, a radio wave of the broadcast wave in the predetermined frequency band equally reaching the locations, and
wherein reception gain for the predetermined frequency band received by the second antenna is lower than reception gain for the predetermined frequency band received by the first antenna, and an output of the noise received by the first antenna is adjusted to be equal to an output of the noise received by the second antenna.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/165,072Filed 26 May 2016 · continuation
Priority: JP 2013-26451020 Dec 2013
Published: US 2016/0269059 A115 Sep 2016
Granted: 30 Jan 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04B 1/0475
Circuits: with means for limiting noise, interference or distortion
H01Q 1/1271
Supports; Mounting means: for mounting on windscreens
H01Q 1/52
Details of, or arrangements associated with, antennas: means for reducing coupling between antennas; Means for reducing coupling between an…
H04B 1/1009
Means associated with receiver for limiting or suppressing noise or interference: placing the antenna at a place where the noise level is low and…

Family

PCT/JP2014/083296Parent of this continuation · filed 16 Dec 2014
US 2016/0269059 A1Pre-grant publication · published 15 Sep 2016
US 9,882,589 B2This patent

From the US filing history. Foreign family members aren’t listed.

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