US 11,768,786 B2 · Connection interface conversion chip, connection interface conversion device and operation method

Abstract

A connection interface conversion chip, a connection interface conversion device and an operation method are provided. The connection interface conversion chip includes a USB interface circuit, a DP interface circuit, a USB core circuit and a switching circuit. The USB interface circuit is suitable for coupling to a USB connector. The DP interface circuit is coupled to a DP sink device through a DP connector. The USB core circuit is coupled to both the USB interface circuit and the DP interface circuit. The switching circuit is coupled to both the USB interface circuit and the DP interface circuit. The switching circuit supports only one specific conduction mode that only allows transmitting DP signals between the USB interface circuit and the DP interface circuit.

Claims28

Dependent claims

A connection interface conversion chip, comprising:

a universal serial bus interface circuit, suitable for coupling to a universal serial bus connector;
a display port interface circuit, coupled to a display port sink device through a display port connector;
a universal serial bus core circuit, directly coupled between the universal serial bus interface circuit and the display port interface circuit, wherein the universal serial bus core circuit is configured to transmit a first display port data to the display port interface circuit in a first operation mode;
and
a switching circuit, directly coupled between the universal serial bus interface circuit and the display port interface circuit, wherein the switching circuit supports only one specific conduction mode that only allows transmitting display port signals between the universal serial bus interface circuit and the display port interface circuit.

2 more elements

An operation method of a connection interface conversion chip, the connection interface conversion chip comprising a universal serial bus interface circuit, a display port interface circuit, a universal serial bus core circuit and a switching circuit, the universal serial bus interface circuit being suitable for coupling to a universal serial bus connector, the display port interface circuit being coupled to a display port sink device through a display port connector, the operation method comprising:

in a first operation mode, disabling the switching circuit in the first operation mode, and transmitting a first display port data from the universal serial bus core circuit to the display port interface circuit in the first operation mode;
and
in a second operation mode, the switching circuit supports only one specific conduction mode that only allows transmitting display port signals between the universal serial bus interface circuit and the display port interface circuit.

Dependencies are inferred from the claim text.

Connection interface conversion chip, connection interface conversion device and operation method

Life of this patent

Connection interface conversion chip, connection interface conversion device and operation method

Life of this patent

Abstract

Claims28