0270274-A2 is referenced by 10 patents and cites 4 patents.

A transponder comprises means for receiving a periodically modulated interrogating signal; means for demodulating the received signal to produce a periodic baseband signal; and means for transmitting data at a rate determined by the periodicity of the baseband signal. The invention also relates to apparatus for interrogating a transponder.

Title
Transponder and interrogator.
Application Number
EP19870310043 19871113
Publication Number
0270274 (A2)
Application Date
November 13, 1987
Publication Date
June 8, 1988
Inventor
Creswick Martin
GB
Assignee
Meridian Micro Systems
GB
IPC
H04L 07/02
G01S 13/82
H04L 07/02
G06K 19/07
G06K 07/00
G01S 13/00
H04L 07/02
G06K 19/07
G06K 07/00
G01S 13/82
View Original Source Download PDF