US 2004/0177207 A1 · USB interface device having a switching function

Abstract

The present invention provides an interface device using a function of switch that can execute various applications in a mobile terminal by multi-switching USB_D+ and USB_D−, or RS232C data line to an external interface; and, particularly, that can make the mobile terminal used as a PC camera. A universal serial bus (USB) interface device using function of switch includes a dual interface unit for multi-switching data according to a microcontroller unit (MCU) selection signal and a digital signal processor (DSP) selection signal; an image processing unit for digitalizing the image data; a signal processing unit for activating the MCU selection signal or the DSP selection signal, and processing the data; and a memory unit for saving the data according to control of the image processing unit or the signal processing unit.

Claims11

Dependent claims

A universal serial bus (USB) interface device having a switching function, comprising:

a dual interface means connected to an external device through a communication line, for multi-switching data according to a microcontroller unit (MCU) selection signal and a digital signal processor (DSP) selection signal;
an image processing means for obtaining external image data, digitalizing the image data and outputting the digitalized data to the dual interface means;
a signal processing means for activating the MCU selection signal or the DSP selection signal, sending the data to the external device through the dual interface means, receiving the data from the external device through the dual interface means and processing the data;
and
a memory means for storing or outputting the data according to control of the image processing means or the signal processing means.

2 more elements

Dependencies are inferred from the claim text.

USB interface device having a switching function

Life of this patent

USB interface device having a switching function

Life of this patent

Abstract

Claims11