Back to results
US 2026/0086966 A1Published application
Uart communications device with power management circuit
OwnerZhuojun Wei, Yicheng Zhou +2inventors
InventorsZhuojun Wei, Yicheng Zhou, Xiaodong Li, Kangcheng Xu
Life of this patent
Estimating the term…
Abstract
In described examples, a device includes a first universal asynchronous receiver-transmitter (UART) connector, a switch or diode coupled to the first UART connector, a capacitor coupled to the switch or diode, and a power management circuit coupled to the switch or diode and to the capacitor. In some examples, the first communications protocol connector is a UART receiver connector, an inter-integrated circuit (I2C) clock connector, or a serial protocol interface (SPI) clock connector.
Claims20
A device comprising:
- a first communications protocol connector;
- a switch or a diode, the switch or diode coupled to the first communications protocol connector;
- a capacitor coupled to the switch or diode;
- and
- a power management circuit coupled to the switch or diode and to the capacitor.
2 more elements
A system comprising:
- a first device that includes:
- a first communications protocol connector;
- a switch or a diode coupled to the first communications protocol connector;
- a capacitor coupled to the switch or diode;
- and
- a power management circuit coupled to the switch or diode and to the capacitor;
- a second device that includes a second communications protocol connector;
- and
- a communication line,
- wherein the second communications protocol connector is coupled to the first communications protocol connector by the communication line.
7 more elements
A method comprising:
- receiving a communication signal at a universal asynchronous receiver-transmitter (UART) receive (RXD) pin on a device;
- charging a capacitor in the device when the communication signal has a first voltage level;
- and
- discharging the capacitor when the communication signal has a second voltage level.
1 more element
Dependencies are inferred from the claim text.