Cypress Semiconductor Patent Grants

Overcurrent protection for universal serial bus Type-C (USB-C) connector systems

Granted: December 29, 2020
Patent Number: 10879686
An electronic device includes a first switch configured to connect a VCONN supply terminal of a Universal Serial Bus Type-C (USB-C) controller to a first configuration channel (CC) terminal of the USB-C controller in response to a USB-C connector being in a first orientation. A first current may flow through the first switch. The electronic device also includes an overcurrent component coupled to the first switch. The overcurrent component includes a second switch associated with the…

Overvoltage protection for Universal Serial Bus Type-C (USB-C) connector systems

Granted: December 22, 2020
Patent Number: 10873162
An example electronic device includes a first switch and a second switch that are each coupled to an overvoltage detection and protection circuit. The first switch is configured to connect a first sideband use (SBU) terminal of a Universal Serial Bus Type-C (USB-C) controller to a SBU crossbar switch of the USB-C controller. The second switch is configured to connect a second SBU terminal of the USB-C controller to the SBU crossbar switch. The overvoltage detection and protection circuit…

Embedded non-volatile memory device and fabrication method of the same

Granted: December 22, 2020
Patent Number: 10872898
Systems and methods of forming such include method, forming a memory gate (MG) stack in a first region, forming a sacrificial polysilicon gate on a high-k dielectric in a second region, wherein the first and second regions are disposed in a single substrate. Then a select gate (SG) may be formed adjacent to the MG stack in the first region of the semiconductor substrate. The sacrificial polysilicon gate may be replaced with a metal gate to form a logic field effect transistor (FET) in…

Systems, methods, and devices for implementing antenna diversity with wireless communications devices

Granted: December 15, 2020
Patent Number: 10869212
Systems, methods, and devices enable the implementation of antenna diversity techniques. Devices include a first wireless communications device that includes a plurality of antennas, and a transceiver coupled to the plurality of antennas and configured to send and receive data in accordance with a wireless transmission protocol, while the peer wireless communication device may have a single antenna or multiple antennas. Devices also include a processor configured to, in a first mode,…

Nonvolatile memory device with regions having separately programmable secure access features and related methods and systems

Granted: December 15, 2020
Patent Number: 10868679
A device can include a plurality of regions, each region including a plurality of nonvolatile memory cells: a permission store configured to store a set of permission values, including at least one permission value for each region in a nonvolatile fashion; and access control circuits configured to control access to each region according to the permission value for the region, including one or more of requiring authentication to access the region, encrypting data read from the region, and…

Type-C connector subsystem

Granted: December 15, 2020
Patent Number: 10866627
A Universal Serial Bus (USB) Type-C connector subsystem is described herein. An integrated circuit (IC) chip device includes a Universal Serial Bus (USB) Type-C subsystem. The USB Type-C subsystem is to operate an Ra termination circuit that consumes no more than a first predetermined amount of current after the Ra termination circuit is applied to a Vconn line of the Type-C subsystem, or to operate a standby reference circuit in a low power mode of the device to perform detection on a…

Primary controller calibration and trimming using secondary controller in secondary-controlled flyback converters

Granted: December 8, 2020
Patent Number: 10862399
Communicating information stored at a secondary controller to a primary controller in a secondary-controlled flyback converter is described. In one embodiment, a method includes storing, by a secondary-side controller of a power converter, calibration information associated with a primary-side controller of the power converter. The power converter is a secondary-controlled alternating current to direct current (AC-DC) flyback converter comprising a galvanic isolation barrier. The method…

Dual pipeline architecture for wakeup phrase detection with speech onset detection

Granted: December 8, 2020
Patent Number: 10861462
A phrase detection device includes a high latency pipeline to transmit a first portion of audio data from an audio data source to a processing unit, where the high latency pipeline includes a history buffer to store the first portion of the audio data, and a low latency pipeline to transmit a second portion of the audio data from the audio data source to the processing unit with a lower latency than the high latency pipeline. A sound onset detector coupled with the audio data source…

Devices, systems, and methods for mitigating aggressive medium reservations

Granted: December 1, 2020
Patent Number: 10856331
An example device detects a pattern of medium reservations by a first wireless device by detecting that the first wireless device has indicated a reservation duration that meets or exceeds a threshold duration value. Responsive to detecting the pattern of medium reservations, the device provides a mitigation operation to prevent a second wireless device from yielding the medium to the first wireless device.

Method for fast detection and automatic gain adjustment in ADC based signal

Granted: November 24, 2020
Patent Number: 10848170
A method can include, amplifying an analog input signal to generate an amplified analog signal; modulating the amplified analog signal into a digital data stream; filtering the digital data stream with a first digital filter to generate a first filtered data stream, and selectively changing a gain of the amplifier in response to the first filtered data stream. While the digital data stream is filtered with the first digital filter, the digital data stream is filtered with a second…

Adjustable over-current detector circuit for universal serial bus (USB) devices

Granted: November 24, 2020
Patent Number: 10847964
In an example embodiment, a universal serial bus (USB) Type-C controller comprises a current detector circuit configured to provide over-current protection on a voltage bus (VBUS) line. The current detector circuit comprises a current sense amplifier, a reference voltage generator, and a comparator coupled to the current sense amplifier and to the reference voltage generator. The current sense amplifier is configured to receive a pair of input voltages from the VBUS line and to output an…

Devices, systems and methods for synchronizing event windows in wireless network

Granted: November 10, 2020
Patent Number: 10834692
A method can include receiving a timing signal that is part of a first communication protocol; by operation of a master device operating according to a second communication protocol, determining event timing windows for a plurality of slave devices of the master device; and by operation of the master device, transmitting control packets to the slave devices, adjusting clock values in the slave devices to sequentially order the event timing windows within an event group window; wherein…

Sensor-compatible overlay

Granted: November 10, 2020
Patent Number: 10832029
A fingerprint sensor-compatible overlay material which uses anisotropic conductive material to enable accurate imaging of a fingerprint through an overlay is disclosed. The anisotropic conductive material has increased conductivity in a direction orthogonal to the fingerprint sensor, increasing the capacitive coupling of the fingerprint to the sensor surface, allowing the fingerprint sensor to accurately image the fingerprint through the overlay. Methods for forming a fingerprint…

System level interconnect with programmable switching

Granted: November 3, 2020
Patent Number: 10826499
A method for operating a system level interconnect in an integrated circuit (IC) is provided in an example embodiment. The method comprises: writing, by a microcontroller in the IC, a first configuration value into a configuration register, where the first configuration value programs the system level interconnect to couple a first peripheral to a second peripheral; monitoring the IC to determine an operational state of the IC; and in response to determining a change in the operational…

Computer system including reconfigurable arithmetic device with network of processor elements

Granted: November 3, 2020
Patent Number: 10824423
A reconfigurable arithmetic device includes a plurality of processor elements configured to perform first arithmetic processes corresponding to a first type of instruction and second arithmetic processes corresponding to a second type of instruction, a random-access memory (RAM), and a control unit. The first type of instruction is written into the RAM at a first address, data for the first type of instruction is written into the RAM at a second address, and data for the second type of…

Memory first process flow and device

Granted: October 27, 2020
Patent Number: 10818761
A semiconductor device and method of making the same are disclosed. The semiconductor device includes a memory gate on a charge storage structure formed on a substrate, a select gate on a gate dielectric on the substrate proximal to the memory gate, and a dielectric structure between the memory gate and the select gate, and adjacent to sidewalls of the memory gate and the select gate, wherein the memory gate and the select gate are separated by a thickness of the dielectric structure.…

Systems, methods, and devices for fast wakeup of DC-DC converters including feedback regulation loops

Granted: October 20, 2020
Patent Number: 10811952
Systems, methods, and devices implement direct current (DC)-DC converters having fast wake up times and low ripple effects. Methods include determining a DC-DC converter is to be transitioned from an operational mode to a low power mode, and storing a voltage at an input of a comparator coupled to an input of a charge pump, the voltage being stored in a feedback capacitor of a feedback regulation loop. The methods further include uncoupling a voltage trimming circuit from the input of…

Memory device resilient to cyber-attacks and malfunction

Granted: October 20, 2020
Patent Number: 10809944
A non-volatile memory (NVM) integrated circuit device includes an NVM array of memory cells partitioned into a first physical region to store a first firmware stack and a second physical region to store a second firmware stack. The NVM integrated circuit device also includes a processing device that enables a host microcontroller to execute in place the first firmware stack stored within a first set of logical addresses that is mapped to the first physical region. The processing device…

USB type-c signal interface circuit

Granted: October 20, 2020
Patent Number: 10809787
A device includes a USB-C controller instantiated as a first integrated circuit that includes a first set of host terminals coupled to host controllers and a second set of terminals coupled to sets of D+/D? terminals of a type-C receptacle. A D+/D? multiplexer is to selectively couple the first set of host terminals to the second set of terminals. An electrostatic discharge (ESD) protection circuit is coupled between the D+/D? multiplexer and the second set of terminals. A charger…

Configurable and power-optimized integrated gate-driver for USB power-delivery and type-C SoCs

Granted: October 13, 2020
Patent Number: 10802571
Techniques for power-Field Effect Transistor (power-FET) gate drivers are described herein. In an example embodiment, a method for an USB-enabled system with an integrated circuit (IC) controller comprises: determining, by the IC controller, whether a first power path or a second power path is coupled to the IC controller, where the first power path comprises an external N-channel power-FET and the second power path comprises an external P-channel power-FET; turning and maintaining ON…