Communication control method and apparatus

Details Communication control method and apparatus Communication control method and apparatus

1994-06-20

1996-06-11

Boudreau, Leo

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359154, 359155, 359159, 359152, H04B 1000

Patent

active

055261612

ABSTRACT:
A communication apparatus transmits a test message in one direction by the transmitting unit having narrow directivity capable of changing the transmitting direction, and an indication message which indicates that the test message is being transmitted by a transmitting unit having non directivity. Accordingly, the indication message is transmitted at least to the communicating party's apparatus. Subsequently, the transmitting direction of the test message is sequentially changed, and a similar process is performed. When the communicating party's apparatus detects a reception of the indication message, information indicating a level of the test message is transmitted to the transmitting apparatus as a response. The communication apparatus at the transmitting side detects the direction where the communicating party exists by receiving the information indicating the level. Hereinafter, the information communication is performed to adjust the transmitting unit of narrow directivity to the determined direction.

REFERENCES:
patent: 4864651 (1989-09-01), Ogiwara et al.
patent: 5060304 (1991-10-01), Solinsky
patent: 5282073 (1994-01-01), Defour et al.
patent: 5359448 (1994-10-01), Laszlo et al.

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