05168222 is referenced by 19 patents and cites 8 patents.

The system comprises a radiator, a sensor (21) fixed to the moving object, a circuit for processing the signals from the sensor in order to determine their amplitudes and a computation processor with a base of processing algorithms. The system also has a multiplexer (24) for sequentially multiplexing on one channel the detector signals from the sensor (21), a device (25) for sampling the signal coming from the multiplexer (24), of amplitude A and pulsation .omega., multipliers (30, 31) for multiplying the samples from the sampling device (25) respectively by reference signals .omega.t and cos .omega.t and accumulates (33, 35, 34, 36) for accumulating the two sums of the products of the multiplications for a period at least equal to a period ##EQU1## before supplying them to the computation processor (22), which extracts from them the amplitude A.

The systrem can be applied well to a helmet aiming device.

Title
Signal processor circuit with signal multiplexing, sampling and multiplying for processing orthogonally received signals in electromagnetic position detection system
Application Number
7/764894
Publication Number
5168222
Application Date
September 24, 1991
Publication Date
December 1, 1992
Inventor
Pascal Monin
Le Taillan Medoc
FR
Gerard Volsin
Saint Medard-en-Jalles
FR
Agent
Rosenman & Colin
Assignee
Sextant Avionique
FR
IPC
G01B 15/00
G01B 7/30
F41G 9/00
F41G 1/00
View Original Source