SYSTEM AND METHOD OF IN-VEHICLE COMMUNICATION AND FREQUENCY SETTING APPARATUS

Title:

SYSTEM AND METHOD OF IN-VEHICLE COMMUNICATION AND FREQUENCY SETTING APPARATUS

Document Type and Number:

Japanese Patent JP2004215038

Kind Code:

A

Abstract:

To reduce reception disturbance in a broadcast wave receiver caused by the radiation noise of a carrier wave.

A communication ECU 11 identifies each broadcast wave frequency corresponding to an area including a vehicle position detected by a GPS apparatus 16 based on a frequency table stored in a ROM 11a, calculates divided frequencies from the identified frequency, and sets a frequency for modulation of the carrier wave which is different from each broadcast wave frequency and the divided frequencies thereof. The set frequency for modulation is transmitted from the communication ECU 11 to left- and right-door ECU 12, 13. The left-door ECU 12 generates a carrier wave of the transmitted modulation frequency, superposes a signal for transmission thereupon, and transmits the superposed signal to the right-door ECU 13. The right-door ECU 13 demodulates the received signal based on the transmitted modulation frequency.

Inventors:

NISHI YASUHIKO

Application Number:

JP2003000586A

Publication Date:

July 29, 2004

Filing Date:

January 06, 2003

Export Citation:

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Assignee:

SUMITOMO ELECTRIC INDUSTRIES

International Classes:

H04J11/00; H04B3/54; H04B15/02; (IPC1-7): H04B15/02; H04B3/54

Attorney, Agent or Firm:

Nobuo Kono

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