Radio data transmitter and receiver

Details Radio data transmitter and receiver Radio data transmitter and receiver

1997-03-19

1999-11-30

Loomis, Paul

Telecommunications

Transmitter and receiver at separate stations

455 383, 455343, 34082506, 34082554, 34087002, 37910611, H04B 700

Patent

active

059958065

ABSTRACT:
A radio data transmitter includes radio switching circuit which is activated in response to first radio signal having a predetermined particular pattern, and a data transmitter unit. The data unit transmits a first radio signal include a carrier modulated by predetermined data from an antenna when supplied with power in accordance with the activation of the radio switching circuit, and subsequently disconnect the power supply. In addition, a radio data receiver includes switch-activation to circuit for transmitting the first radio signal having the predetermined particular pattern, a receiving circuit for receiving the second radio signal including the data from the data transmitter unit activated by the first radio signal having the predetermined particular pattern, and a storage device for storing data received by the receiving circuit.

REFERENCES:
patent: 5008898 (1991-04-01), Hamatsu et al.
patent: 5481259 (1996-01-01), Bane
patent: 5710975 (1998-01-01), Bernhardt et al.
patent: 5726646 (1998-03-01), Bane et al.
patent: 5734686 (1998-03-01), Kuramatsu
patent: 5838720 (1998-11-01), Morelli
"A Card-size SS Demodulator Using a 2.4GHz Front-end SAW Correlator", The Institute of Electronics Information and Communication Engineers, Y. Maruta, et al., pp. 13-18 (with an English translation) printed & published : 1995.

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