Title:
【発明の名称】データ通信装置
Document Type and Number:
Japanese Patent JP3337025
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a data communication unit that is used for a small-sized inexpensive unit to easily transmits/receives data and can stably attain data communication, without being limited about the mounting position of a data transmitter and of the distance between a data receiver and the data transmitter. SOLUTION: The data communication unit is provided with the data transmitter 1 that has an electrode 10 placed, in a way such that a human body can be touched, an oscillation section 20 that generates an AC signal, a modulation section 30 that modulates a signal generated by the oscillation section 20 on the basis of data to be transmitted, and a voltage application section 40 that applies a voltage, corresponding to the modulation signal modulated by the modulation section 30 between the electrode 10 and a circuit ground, a data receiver 2 that has two electrodes 50, 60 placed so as to face the human body, a voltage detection section 70 that detects the voltage between the two electrodes 50 and 60, and a demodulation section 80 that demodulates a voltage fluctuation, on the basis of the modulation signal detected by the voltage detection section 70.
Inventors:
▲土▼井 謙之
Masaru Hashimoto
Masaki Koyama
Yoshiko Suzuki
Atsuhisa Nishimura
Masaru Hashimoto
Masaki Koyama
Yoshiko Suzuki
Atsuhisa Nishimura
Application Number:
JP2000332628A
Publication Date:
October 21, 2002
Filing Date:
October 31, 2000
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
H04B5/02; H04B13/00; G08C19/00; (IPC1-7): H04B13/00; G08C19/00; H04B5/02
Domestic Patent References:
| JP6146638A | ||||
| JP6146639A | ||||
| JP6146637A | ||||
| JP60250731A |
Attorney, Agent or Firm:
Junji Ando (1 person outside)