Electromagnetic safety enhancement circuit for universal serial

Details Electromagnetic safety enhancement circuit for universal serial Electromagnetic safety enhancement circuit for universal serial

1998-10-23

2000-08-08

Jackson, Stephen W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 18, 361 58, 361115, 361119, H02H 100

Patent

active

061010766

ABSTRACT:
An electromagnetic safety (EMS) enhancement circuit is provided for a USB (Universal Serial Bus) system, which can simulate an unplugging and replugging action so as to ensure continuous operation of the USB device after being disconnected from the USB interface due to electromagnetic interferences. The EMS enhancement circuit utilizes an EMS detection unit to detect the EMS condition of the data communication between the USB device and the USB interface; if abnormal, the EMS detection unit will output an overflow signal to a resume-control unit. The resume-control unit can output a pull-up control signal to a voltage pull-up circuit so as to control the voltage pull-up circuit in such a manner that, when the USB device is disconnected from the USB interface, the voltage pull-up circuit is first inhibited from outputting a voltage signal to one data line of the USB interface to thereby simulate an unplugging action and, after a preset time, be enabled again to output the voltage signal to thereby simulate a replugging action. The simulated unplugging and replugging action can then automatically reconnect the USB device to the USB interface for continuous operation of the USB device.

REFERENCES:
patent: 5953206 (1999-09-01), Jondrow
patent: 5954523 (1999-09-01), Babcocl

Affiliated with

Also associated with

Rating

Electromagnetic safety enhancement circuit for universal serial does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electromagnetic safety enhancement circuit for universal serial , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic safety enhancement circuit for universal serial will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1156238