US 11,916,627 B2
Signal generation method and signal generation device
Yutaka Murakami, Kanagawa (JP); Tomohiro Kimura, Osaka (JP); and Mikihiro Ouchi, Osaka (JP)
Assigned to SUN PATENT TRUST, New York, NY (US)
Filed by Sun Patent Trust, New York, NY (US)
Filed on Nov. 22, 2022, as Appl. No. 17/992,145.
Application 17/992,145 is a continuation of application No. 17/680,823, filed on Feb. 25, 2022, granted, now 11,539,408.
Application 17/680,823 is a continuation of application No. 17/182,483, filed on Feb. 23, 2021, granted, now 11,296,757, issued on Apr. 5, 2022.
Application 17/182,483 is a continuation of application No. 16/891,531, filed on Jun. 3, 2020, granted, now 10,965,353, issued on Mar. 30, 2021.
Application 16/891,531 is a continuation of application No. 16/601,694, filed on Oct. 15, 2019, granted, now 10,715,227, issued on Jul. 14, 2020.
Application 16/601,694 is a continuation of application No. 16/227,410, filed on Dec. 20, 2018, granted, now 10,530,436, issued on Jan. 7, 2020.
Application 16/227,410 is a continuation of application No. 15/921,807, filed on Mar. 15, 2018, granted, now 10,411,769, issued on Sep. 10, 2019.
Application 15/921,807 is a continuation of application No. 15/805,240, filed on Nov. 7, 2017, granted, now 9,954,588, issued on Apr. 24, 2018.
Application 15/805,240 is a continuation of application No. 15/450,452, filed on Mar. 6, 2017, granted, now 9,843,369, issued on Dec. 12, 2017.
Application 15/450,452 is a continuation of application No. 14/980,186, filed on Dec. 28, 2015, granted, now 9,628,158, issued on Apr. 18, 2017.
Application 14/980,186 is a continuation of application No. 14/502,447, filed on Sep. 30, 2014, granted, now 9,252,855, issued on Feb. 2, 2016.
Application 14/502,447 is a continuation of application No. 13/810,721, granted, now 8,885,769, issued on Nov. 11, 2014, previously published as PCT/JP2011/006742, filed on Dec. 1, 2011.
Claims priority of application No. 2010-276447 (JP), filed on Dec. 10, 2010.
Prior Publication US 2023/0098197 A1, Mar. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/0456 (2017.01); H04B 7/0413 (2017.01); H04B 7/06 (2006.01)
CPC H04B 7/0456 (2013.01) [H04B 7/0413 (2013.01); H04B 7/0617 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A broadcast apparatus comprising:
a signal processor configured to:
code information bits to generate a first coded signal and a second coded signal;
apply a precoding to the first coded signal and the second coded signal according to a determined matrix F to generate a first precoded signal and a second precoded signal;
apply a phase change to the second precoded signal to generate a second phase-changed precoded signal, the phase change not being applied to the first precoded signal; and insert pilots into the first precoded signal and the second phase-changed precoded signal; and
a transmitter configured to transmit the first pilot-inserted precoded signal and the second pilot-inserted phase-changed signal from a first antenna and a second antenna, respectively, on a same frequency band and at a same time, wherein
the phase change uses a phase change value sequentially selected from among N phase change values, N being an integer greater than two, each of the N phase change values being selected at least once within a determined period, and a difference between two adjacent phase change values of the N phase change values is 2π/N.