Title:
BASE STATION, MOBILE TERMINAL, AND TRANSMITTING-RECEIVING METHOD
Document Type and Number:
Japanese Patent JP3643832
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide compatibility of NTSC broadcasting and HDTV broadcasting particularly in a transmitting apparatus for modulating a carrier wave to transmit a digital signal, and a transmitting apparatus for remarkably decreasing areas where receiving is impossible within service areas of ground broadcasting.
SOLUTION: The transmitting apparatus is provided with a modulation part for modulating a first data stream to produce a first modulated signal and for modulating a second data stream to produce a second modulated signal. The first data stream has demodulation information for demodulating the second modulated signal.
Inventors:
Mitsuaki Oshima
Application Number:
JP2003291132A
Publication Date:
April 27, 2005
Filing Date:
August 11, 2003
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04J11/00; G11B5/09; H03M13/25; H03M13/35; H04B14/04; H04H20/00; H04H20/74; H04J1/02; H04J3/00; H04L1/00; H04L27/00; H04L27/02; H04L27/04; H04L27/06; H04L27/10; H04L27/18; H04L27/22; H04L27/26; H04L27/34; H04L27/36; H04L27/38; H04N5/38; H04N5/40; H04N5/44; H04N5/455; H04N5/46; H04N5/78; H04N5/7826; H04N5/92; H04N7/015; H04N7/04; H04N7/045; H04N7/06; H04N7/08; H04N7/081; H04N7/20; H04N7/24; H04N11/04; H04N11/24; H04N21/2343; H04N21/2383; H04N21/438; H04N21/442; H04N21/4425; H04N21/462; H04N21/63; H04N21/647; H04N21/4402; (IPC1-7): H04J11/00; H04B1/707; H04L27/18; H04L27/34; H04N7/015
Domestic Patent References:
| JP5218978A |
Other References:
大本隆太郎,大塚裕幸,π/4シフトQPSK信号のサブキャリア伝送特性,1991年電子情報通信学会秋季大会講演論文集,日本,社団法人電子情報通信学会,1991年 8月15日,分冊2,p.277
Attorney, Agent or Firm:
Aoyama Aoi
Osamu Kawamiya
Osamu Kawamiya