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1. (US20070160172) Communications device and communications method

Office : United States of America
Application Number: 11478445 Application Date: 30.06.2006
Publication Number: 20070160172 Publication Date: 12.07.2007
Grant Number: 7660365 Grant Date: 09.02.2010
Publication Kind : B2
IPC:
H04L 27/04
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27
Modulated-carrier systems
02
Amplitude-modulated carrier systems, e.g. using on/off keying; Single sideband or vestigial sideband modulation
04
Modulator circuits; Transmitter circuits
Applicants: Panasonic Corporation
Inventors: Koga Hisao
Igata Yuji
Kuroda Go
Ikeda Koji
Kurobe Akio
Yamada Hirotoshi
Okamoto Hiromu
Mizugai Yoshinori
Sugita Takehiro
Ohshima Junichi
Takasu Shigeru
Agents: Dickinson Wright PLLC
Priority Data: 2005196598 05.07.2005 JP
Title: (EN) Communications device and communications method
Abstract: front page image
(EN)

A communications device 100, which performs data communication, includes an AC cycle sensor 30 which is connected to a power line 106 supplied with an a.c. voltage and generates a synchronous signal SS at timing of an a.c. voltage waveform AC of the power line 106; a data communicator 10 for performing data communication; and a communications controller 20 which performs communication of a control signal including information showing at least one of a communications device and a communications standard and controls the data communicator 101. When the a.c. voltage supplied to the power line 106 is an N-phase and when the cycle of the a.c. voltage waveform is T, data communication to be performed in a communication period subsequent to the period is controlled on the basis of the control signal included in the period of T/2M on condition that M is a natural multiple of N.


Also published as:
KR1020080038294EP1902528JP2007019639US20100104030CN101218756IN74/CHENP/2008
ES2718231WO/2007/004742