Innovative angular sensor read-out multi-axes digital front-end chain
First Claim
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1. A signal processor for processing sensor signals from a plurality sensors of a gyroscope, comprising:
- a multiplexer coupled to the plurality of sensors, responsive to a plurality of readout signals from the plurality of sensors, and operative to generate a multiplexed signal;
a front end amplifier for converting the multiplexed signal into a voltage variation signal;
a demultiplexer coupled to the front end amplifier and operative to demultiplex the voltage variation signal into a plurality of signals;
at least one analog-to-digital converter coupled to the demultiplexer and operative to convert the plurality of signals into a plurality of digital signals; and
at least one demodulator coupled to the at least one analog-to-digital converter and operative to demodulate the plurality of digital signals to thereby extract envelope signal therefrom.
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Abstract
The invention relates to a controller, and more particularly, to systems, devices and methods of processing multiple sensor signals of a gyroscope. The signal processor includes: a front end amplifier for converting a signal into a voltage variation signal; at least one analog-to-digital converter coupled to the front end amplifier and operative to convert an analog signal into a digital signal; and at least one demodulator coupled to the analog-to-digital converter and operative to demodulate the digital signal to thereby extract an envelope signal therefrom.
18 Citations
19 Claims
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1. A signal processor for processing sensor signals from a plurality sensors of a gyroscope, comprising:
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a multiplexer coupled to the plurality of sensors, responsive to a plurality of readout signals from the plurality of sensors, and operative to generate a multiplexed signal; a front end amplifier for converting the multiplexed signal into a voltage variation signal; a demultiplexer coupled to the front end amplifier and operative to demultiplex the voltage variation signal into a plurality of signals; at least one analog-to-digital converter coupled to the demultiplexer and operative to convert the plurality of signals into a plurality of digital signals; and at least one demodulator coupled to the at least one analog-to-digital converter and operative to demodulate the plurality of digital signals to thereby extract envelope signal therefrom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of processing sensor signals from a gyroscope, comprising:
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multiplexing a plurality of readout signals from a plurality of sensors of a gyroscope into a multiplexed signal; converting the multiplexed signal into a voltage variation signal; demultiplexing the voltage variation signal into a plurality of sensor signals, each of the plurality of sensor signals corresponding to one of the plurality of readout signals; converting the plurality of sensor signals into digital sensor signals; and demodulating the digital sensor signals to extract envelop signals therefrom. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification
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Current AssigneeHanking Electronics Hongkong Company Limited
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Original AssigneeMaxim Integrated Products, Inc. (Analog Devices, Inc.)
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InventorsCazzaniga, Gabriele, Forte, Federico, Prandi, Luciano
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Primary Examiner(s)Kwok, Helen
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Application NumberUS13/952,877Time in Patent Office1,009 DaysField of Search735/041.2, 735/041.4, 735/041.6, 735/040.2, 735/040.4US Class Current1/1CPC Class CodesG01C 19/5776 Signal processing not speci...
