Title:
FREQUENCY HOPPING COMMUNICATION SYSTEM AND SIMPLE RADIO EQUIPMENT
Document Type and Number:
Japanese Patent JPH07307688
Kind Code:
A
Abstract:
PURPOSE: To provide a communication system of high reliability which has a low power consumption and doesn't fall to the uncommunicatable state regardless of a disturbing wave.
CONSTITUTION: Plural carriers different by frequencies are successively switched and are supplied from a PLL circuit 4 to an FSK modulation circuit 3, and the carrier is modulated by transmission data and is transmitted from an antenna 7. On the transmitter side, a disturbed channel out of channels of carriers is detected by a detection circuit 8, and the carrier of this channel is not used to perform frequency hopping.
Inventors:
SUZUKI TAMOTSU
SHIMADA GIICHI
SHIMADA GIICHI
Application Number:
JP10001994A
Publication Date:
November 21, 1995
Filing Date:
May 13, 1994
Export Citation:
Assignee:
ROHM CO LTD
International Classes:
H04K3/00; H04B1/713; H04B1/715; (IPC1-7): H04B1/713; H04K3/00
Attorney, Agent or Firm:
Shizuo Sano
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