Title:
SHF搬送波用周波数ダイバーシチ方法及び装置
Document Type and Number:
Japanese Patent JP4070836
Kind Code:
B2
Abstract:
The method of diversifying frequencies involves varying a frequency of a message continuously within a band. A signal has a spectrum including several frequencies representing several non-correlated messages, each of which contains information to be transmitted. A super high frequency signal is modulated with a very high frequency signal. This is then modulated by a signal which represents information to be transmitted. At the same time, the frequency of the message is caused to vary using a sinusoidal signal. The signals are sent to several remote receivers. The message frequency is around 5.8 GHz.
Inventors:
David Harrison
Ant rouzil
Gerard Ake
Ant rouzil
Gerard Ake
Application Number:
JP33990396A
Publication Date:
April 02, 2008
Filing Date:
December 19, 1996
Export Citation:
Assignee:
THOMSON multimedia S.A.
International Classes:
H04B7/12; H04B1/713
Domestic Patent References:
| JP5029997A | ||||
| JP1171329A | ||||
| JP56114451A | ||||
| JP5259740A | ||||
| JP6054266A |
Attorney, Agent or Firm:
Tadahiko Ito