Title:
【発明の名称】複数の遠隔送信機との通信システム及び通信方法
Document Type and Number:
Japanese Patent JP2002517843
Kind Code:
A
Abstract:
A system for communicating with plural remote transmitters in which the transmitters send messages without a common synchronization source or polling by a controlling receiver. In one embodiment, the system uses the time position of frequency chirp signals to encode the identity and/or other information sent from the receiver. The system may use relatively low cost transmitters because the transmitters do not need to have a message or clocking signal receiving capability and the internal clocking signal source within the transmitter may be a relatively inexpensive device or circuit.
Inventors:
Otto James C.
Application Number:
JP2000552641A
Publication Date:
June 18, 2002
Filing Date:
June 04, 1998
Export Citation:
Assignee:
Harris Corporation
International Classes:
G01C21/00; G01S5/04; G08B25/10; G08G1/127; G08G1/13; H04B1/69; H04B14/02; H04W64/00; (IPC1-7): G08G1/13; G01C21/00; G01S5/04; H04Q7/38
Attorney, Agent or Firm:
Kashiwara Mieko