Screen projection device supporting simultaneous output of multimedia interface and composite video

A screen projection device supporting simultaneous output of a multimedia interface and a composite video comprises a bottom shell, a face shell buckled with the bottom shell, a PCB installed in the buckled body of the bottom shell and the face shell, and a key installed in the center of the top of...

Full description

Saved in:
Bibliographic Details
Main Author CHEN KEYAN
Format Patent
LanguageChinese
English
Published 03.12.2021
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
Online AccessGet full text

Cover

More Information
Summary:A screen projection device supporting simultaneous output of a multimedia interface and a composite video comprises a bottom shell, a face shell buckled with the bottom shell, a PCB installed in the buckled body of the bottom shell and the face shell, and a key installed in the center of the top of the face shell, the PCB comprises a board body and a USB interface installed on the rear side of the board body, and the USB interface is connected with the bottom shell. The USB interface is installed on the left side of the board body, the AV interface and the HDMI interface are installed on the left side of the board body, the key is installed in the middle of the board body, the USB interface is a power supply interface J2, the AV interface is a composite video output interface J28, the HDMI interface is a multimedia input interface, and the board body further comprises a multimedia interface seat J2600, a master control U1, a stereo circuit driving chip U24, step-down regulators U4, U5 and U9, a double-frequen
Bibliography:Application Number: CN202120905931U