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公开(公告)号：US20200271699A1
公开(公告)日：2020-08-27
申请号：US16281105
申请日：2019-02-21
Applicant: GOODIX TECHNOLOGY INC.
Inventor： Rami Khatib , Ahmed EMIRA
Abstract: Techniques are described for power detection of an amplified signal. For example, power detection described herein can receive an amplified signal from a power amplifier, and can generate an output signal that can be fed back to help regulate an output level of the power amplifier. Embodiments receive the amplified signal can be received by a transistor. A first measurement can be obtained at the transistor's emitter corresponding to an average bias level of the amplified signal, and a second measurement can be obtained at the transistor's base. The output signal can be generated as a function of a difference between the two measurements. Some embodiments further compensate for a measured effective diode voltage corresponding to a base-emitter voltage. Such an approach can generate the power detector output signal to be independent of the β of the transistor, and therefore less affected by variations in process corners and temperature.
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公开(公告)号：US20210211043A1
公开(公告)日：2021-07-08
申请号：US16735678
申请日：2020-01-06
Applicant: GOODIX TECHNOLOGY INC.
Inventor： Esmail BABAKRPUR NALOUSI , Siavash YAZDI , Ahmed EMIRA
IPC: H02M3/04
Abstract: A converter circuit is disclosed. The converter circuit includes a controller configured to operate a pull up component and a pull down component so as to deliver power to a load through an inductor. The controller is configured to operate in either of first and second operational modes based on average current delivered to the load. The converter circuit also includes a mode control circuit configured to change operational modes in response to an indication of current flowing from the inductor to the switch node, and in response to an indication that the average current delivered to the load is greater than the current threshold
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Patent Agency Ranking
公开(公告)号：US20210218425A1
公开(公告)日：2021-07-15
申请号：US16739094
申请日：2020-01-09
Applicant: GOODIX TECHNOLOGY INC.
Inventor： Ahmed EMIRA , Faisai Hussien , Esmail BABAKRPUR NALOUSI
Abstract: A transmitter circuit is disclosed. The transmitter circuit includes a frequency circuit configured to generate a frequency signal, a power amplifier configured to drive an antenna with a drive signal according to the frequency signal, and a programmable delay circuit configured to controllably extend a propagation delay between the frequency signal generated by the frequency circuit and the drive signal of the power amplifier. The programmable delay circuit is programmed with a programming value which causes the transmitter circuit to pass a calibration test.
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公开(公告)号：US20200343856A1
公开(公告)日：2020-10-29
申请号：US16575410
申请日：2019-09-19
Applicant: GOODIX TECHNOLOGY INC.
Inventor： Mohamed ABOUDINA , Ahmed EMIRA , Amr Abuellil
Abstract: Techniques are described for post-compensation of frequency drift due to changes in crystal oscillator temperature during operation. For example, a clock system is coupled with a crystal oscillator, and can use a reference clock signal from the crystal oscillator to generate an output clock signal using a clock generator. The clock system can monitor an electrical characteristic of a thermal component integrated with the oscillator, which it can map deterministically to a thermal value indicating a temperature of a crystal component of the oscillator. The clock system can then map the temperature deterministically to a frequency shift of the oscillator away from a nominal value. The clock system can then generate a post-compensation signal that directs the clock generator to shift the frequency of the clock output signal so as to compensate for at least a portion of the frequency drift.
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公开(公告)号：US20200343857A1
公开(公告)日：2020-10-29
申请号：US16395222
申请日：2019-04-25
Applicant: GOODIX TECHNOLOGY INC.
Inventor： Ahmed EMIRA , Mounir FARES
Abstract: Techniques are described for tuning a resonant circuit using differential switchable capacitors. For example, embodiments can operate in context of a power amplifier with a tunable resonant output network. To tune the network, multiple differential switchable capacitors are provided in parallel. Each differential switchable capacitor can include a pair of capacitors, each coupled between a respective internal node and a respective differential terminal; and the internal nodes are selectively coupled or decoupled using a respective electronic switch (e.g., transistor). Switching on one of the differential switchable capacitors forms a capacitive channel having an associated capacitance. Each differential switchable capacitor can also include a switch network to selectively pull the internal nodes to a high or low voltage reference according to the selected operating mode.
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公开(公告)号：US20210234736A1
公开(公告)日：2021-07-29
申请号：US16749994
申请日：2020-01-23
Applicant: GOODIX TECHNOLOGY INC.
Inventor： Mohamed ABOUDINA , Ahmed EMIRA , Esmail BABAKRPUR NALOUSI
Abstract: A receiver circuit is disclosed. The receiver circuit includes an amplifier having an input terminal, where the amplifier is configured to generate an RF signal based on a signal received at the input terminal, where the RF signal includes an information signal and a blocker signal modulating an RF carrier frequency. The receiver circuit also includes a mixer configured to receive the RF signal and to downconvert the RF signal to generate a baseband signal, where the baseband signal includes the information signal and the blocker signal modulating a baseband carrier frequency, where the baseband carrier frequency is less than the RF carrier frequency, and where the mixer is further configured to selectively attenuate the blocker signal.
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公开(公告)号：US20210211046A1
公开(公告)日：2021-07-08
申请号：US16735667
申请日：2020-01-06
Applicant: Goodix Technology Inc.
Inventor： Siavash YAZDI , Esmail BABAKRPUR NALOUSI , Ahmed EMIRA
IPC: H02M3/156
Abstract: A converter circuit includes a pull up component, a pull down component, and a controller configured to operate the pull up component and the pull down component so as to deliver power to a load. The controller is configured to operate the pull up and pull down components in first and second operational modes, based on an average current delivered to the load. The converter circuit also includes a mode control circuit to generate a mode control signal based in part on a representation of a peak current received at the switch node from the pull up component.
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