Patent application number | Description | Published |
20110171906 | COMMUNICATION CELL FOR AN INTEGRATED CIRCUIT, CHIP COMPRISING SAID COMMUNICATION CELL, ELECTRONIC SYSTEM INCLUDING THE CHIP, AND TEST APPARATUS - An embodiment of communication cell for enabling data communication between an integrated circuit and an electronic unit distinct from the integrated circuit, comprising a contact pad unit, configured for capacitively coupling, in a first operating condition of said communication cell, to the electronic unit for receiving an input signal from said electronic unit, and for ohmically coupling, in a second operating condition of said communication cell, to the electronic unit for receiving the input signal; a receiver device, including signal-amplifying means, coupled between said contact pad unit and said integrated circuit, configured for receiving the input signal and generating an intermediate signal correlated to the input signal; signal-selection means receiving the intermediate signal, the input signal, and providing an output signal which is the intermediate signal during the first operating condition, and the input signal during the second operating condition; and an input stage, connectable between the integrated circuit and the output terminal of the signal-selection means, configured for receiving the output signal and providing the output signal to the integrated circuit. | 07-14-2011 |
20110319014 | ELECTRONIC CIRCUIT FOR COMMUNICATING THROUGH CAPACITIVE COUPLING - A device and method to compensate for distortions of amplitude that afflict systems for communicating through capacitive coupling. A circuit includes a first transmitter stage, a first receiver stage, and a first coupling capacitor, coupled between the first transmitter stage and the first receiver stage. The first receiver stage includes a calibration amplifier of a variable-gain type coupled between the first coupling capacitor and an output of the electronic circuit. The electronic circuit includes a reference channel formed by: a transmission calibration stage; a reception calibration stage; and a reference capacitor coupled between the transmission calibration stage and the reception calibration stage. The reception calibration stage includes: a reception amplifier of a variable-gain type, having an input coupled to the reference capacitor, and a gain controller, having an input coupled to an output of the reception amplifier and an output coupled to control terminals of the reception and calibration amplifiers. | 12-29-2011 |
20110319015 | METHOD FOR VERIFYING THE ALIGNMENT BETWEEN INTEGRATED ELECTRONIC DEVICES - A method for verifying alignment between first and second integrated devices coupled together using a reference and a coupling capacitor, including: transmitting a reference signal on a transmission electrode of the reference capacitor; receiving a coupling signal on a reception electrode of the reference capacitor; amplifying the coupling signal, generating a reception reference signal; generating a reception control signal as a function of the reception reference signal; transmitting a communication signal on an electrode of the coupling capacitor; receiving a reception signal on an electrode of the coupling capacitor; amplifying the reception signal, generating a first compensated signal; controlling a level of amplification of amplifying the coupling signal and the reception signal as a function of the reception control signal; and detecting a possible misalignment between the first and second devices based on an amplitude of the communication signal and an amplitude of the compensated signal. | 12-29-2011 |
20130001547 | METHOD FOR VERIFYING THE ALIGNMENT BETWEEN INTEGRATED ELECTRONIC DEVICES - A method includes communicatively coupling first and second integrated electronic devices together through a plurality of reference capacitors, transmitting a plurality of transmission reference signals on transmission reference electrodes of the plurality of reference capacitors, receiving coupling signals on reception reference electrodes of the plurality of reference capacitors, amplifying said coupling signals, generating a plurality of reception reference signals, generating a plurality of reception control signals as a function of the plurality of reception reference signals, and detecting a possible misalignment between said first and second integrated electronic devices based on the plurality of reception control signals. | 01-03-2013 |