Patent for Sale:

AC LED Patent Portfolio    

Enabling fundamental circuits for alternating current light emitting diode.

Overview

This patented technology can resolve critical problem of AC LED such as brightness deviation and non-uniform lifetime among LED PKG.

Competitive Advantage

• Maintain the output power stably even when the input voltage is fluctuated.
• Control the driving control time point in a more accurate manner
• Control the change time point of the serial/parallel connection accurately.
• When the switching delay is compensated, power factor and THD can be improved because the time point which source current begins to flow is faster.
• Improve optical uniformity and brightness.
• Free voltage operation.

The seller would like to be granted a license back.

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 315: Electric Lamp And Discharge Devices: Systems

Electric lamp and electric space discharge device systems: structural combinations with circuit elements; structural combinations with heating and/or cooling means; cathode-ray tubes; lamps and/or discharge devices as sole load devices; lamps; electric space discharge devices gas or vapor discharge devices; high vacuum-type discharge devices, and gas or vapor-type discharge devices claimed broadly; plural load device systems; art uses and combinations with art devices; testing electric lamps and discharge devices; and operating a lamp or a gas or vapor discharge device.

Subclass 192: Combined with parallel connected load device
Subclass 200R: DISCHARGE DEVICE AND/OR RECTIFIER IN THE SUPPLY CIRCUIT
Subclass 201: Plural load device systems
Subclass 291: CURRENT AND/OR VOLTAGE REGULATION
Subclass 297: Automatic regulation