US 6,982,745 B2
Antenna level display device and method, and receiving apparatus
Naoki Miyabayashi, Tokyo (Japan)
Assigned to Sony Corporation, Tokyo (Japan)
Filed on Nov. 26, 2002, as Appl. No. 10/304,224.
Claims priority of application No. 2001-361527 (JP), filed on Nov. 27, 2001.
Prior Publication US 2004/0075771 A1, Apr. 22, 2004
Int. Cl. H04N 5/50 (2006.01); H04N 5/445 (2006.01); H04N 17/00 (2006.01)
U.S. Cl. 348—193 17 Claims
OG exemplary drawing
 
9. An antenna level display method comprising the steps of:
calculating a CN ratio based on mapped points of a received signal on an IQ plane;
calculating a CN ratio based on an error rate;
selecting, as an antenna level to be displayed, either the CN ratio based on the mapped points of the received signal on the IQ plane or the CN ratio based on the error rate; and
displaying the selected CN ratio as an antenna level.