Communications apparatus, communications system, communications method, and integrated circuit
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsNaganori Shirakata, Daisuke Kobayashi
Life of this patent
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Abstract
A radio (102) in a sensor network and powered by electricity includes a data communicating unit (114) performing data communication; and a pulse interval demodulating unit (111) configured to (i) detect, from a signal (11c) with signals for corresponding frequency channels overlapped, a frequency channel indicated by a time interval between two pulses in a wake-up signal (1R) included in one of the frequency channels and (ii) cause the data communicating unit (114) to perform the data communication over the detected frequency channel.
Claims14
A communications apparatus comprising:
- a data communicating unit configured to perform data communication;
- and
- a frequency channel detecting unit configured to (i) detect, from a signal with signals for corresponding frequency channels overlapped, a frequency channel indicated by a time interval between two pulses in a wake-up signal included in one of the frequency channels and (ii) cause said data communicating unit to perform the data communication over the detected frequency channel.
A communications apparatus comprising:
- a data communicating unit configured to perform data communication over a frequency channel selected from among frequency channels with a first communications apparatus which is different from said communications apparatus that is a second communications apparatus;
- and
- an interval control unit configured to transmit, to the first communications apparatus, a wake-up signal including two pulses whose time interval indicates the selected frequency channel.
A communications system comprising:
- a first communications apparatus;
- and
- a second communications apparatus,
- wherein said second communications apparatus includes:
- a second data communicating unit configured to perform data communication over a frequency channel selected from among frequency channels with said first communications apparatus;
- and
- an interval control unit configured to transmit, to said first communications apparatus, a wake-up signal including two pulses whose time interval indicates the selected frequency channel, and
- said first communications apparatus includes:
- a first data communicating unit configured to perform the data communication;
- and
- a frequency channel detecting unit configured to (i) detect, from a signal including signals for corresponding frequency channels, the frequency channel indicated by the time interval between two pulses in the wake-up signal included in one of the detected frequency channels and (ii) cause said first data communicating unit to perform the data communication over the detected frequency channel.
A communications method comprising:
- performing data communication;
- and
- detecting, from a signal with signals for corresponding frequency channels overlapped, a frequency channel indicated by a time interval between two pulses in a wake-up signal included in one of the frequency channels and causing in said performing to perform the data communication over the detected frequency channel.
A communications method comprising:
- performing data communication over a frequency channel selected from among frequency channels with a first communications apparatus which is different from a second communications apparatus performing said communications method;
- and
- transmitting, to the first communications apparatus, a wake-up signal including two pulses whose time interval indicates the selected frequency channel.
An integrated circuit comprising:
- a data communicating unit configured to perform data communication;
- and
- a frequency channel detecting unit configured to (i) detect, from a signal with signals for corresponding frequency channels overlapped, a frequency channel indicated by a time interval between two pulses in a wake-up signal included in one of the frequency channels and (ii) cause said data communicating unit to perform the data communication over the detected frequency channel.
An integrated circuit comprising:
- a data communicating unit configured to perform data communication over a frequency channel selected from among frequency channels with a first communications apparatus which is different from a second communications apparatus including said integrated circuit;
- and
- an interval control unit configured to transmit, to the first communications apparatus, a wake-up signal including two pulses whose time interval indicates the selected frequency channel.
Dependencies are inferred from the claim text.