Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
WIRELESS COMMUNICATION SYSTEM, TRANSMITTER, AND RECEIVER
Document Type and Number:
WIPO Patent Application WO/2016/006068
Kind Code:
A1
Abstract:
Provided is a wireless communication system comprising a transmitter and a receiver. The transmitter is provided with: a transmission information generation unit for generating transmission information; a first-code generation unit for generating a first code which recurs at a frequency (fr) and for which an auto-correlation value between the same partial areas is higher than a cross-correlation value between different partial areas; a second-code generation unit for generating a second code for which it can be detected whether the same codes of two series match each other on the time axis; an encoding unit for encoding the transmission information by use of the first and second codes; and a transmission unit for superimposing a carrier on the transmission information as encoded, thereby generating and wireless-transmitting a transmission signal the polarization plane of which rotates at the frequency (fr). The receiver is provided with: a reception unit for removing the carrier from the signal received; a synchronization detection unit for detecting, for the information signal from which the carrier has been removed, a start point of the information signal by use of the second code; and a partial area information extraction unit for extracting, by use of the start point of the information signal, pieces of partial area information corresponding to the respective partial areas and for detecting phase deviations of the respective pieces of partial area information.

Inventors:
TAKEI KEN (JP)
Application Number:
PCT/JP2014/068341
Publication Date:
January 14, 2016
Filing Date:
July 09, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI LTD (JP)
International Classes:
H04J13/00; H04B1/7073; H04B7/10; H04K1/08
Foreign References:
JP2002152191A2002-05-24
JPH08307318A1996-11-22
JPS63132544A1988-06-04
Attorney, Agent or Firm:
SEIRYO I. P. C. (JP)
青稜 patent business corporation (JP)
Download PDF: