US Patent No. 10,561,005

LIGHT EMITTING DIODE LAMP STRING SYSTEM WITH SEQUENCING FUNCTION AND SEQUENCING METHOD


Patent No. 10,561,005
Issue Date February 11, 2020
Title Light Emitting Diode Lamp String System With Sequencing Function And Sequencing Method
Inventorship Wen-Chi Peng, New Taipei (TW)
Assignee SEMISILICON TECHNOLOGY CORP., New Taipei (TW)

Claim of US Patent No. 10,561,005

1. A light emitting diode lamp string system with a sequencing function comprising:a light emitting diode driving apparatus; and
at least one light emitting diode lamp string electrically connected to the light emitting diode driving apparatus,
wherein the at least one light emitting diode lamp string comprises:
a plurality of light emitting diode lamps electrically connected to the light emitting diode driving apparatus, and electrically connected to each other,
wherein when the light emitting diode driving apparatus is in a predetermined sequence testing mode: the light emitting diode driving apparatus is configured to generate a plurality of predetermined sequence testing signals; each of the predetermined sequence testing signals comprises a predetermined address code; the predetermined address codes are different; based on a testing sequence of the predetermined address codes, the light emitting diode driving apparatus is configured to sequentially send the predetermined sequence testing signals to the at least one light emitting diode lamp string, and the light emitting diode driving apparatus is configured to sequentially detect a consumed current of the at least one light emitting diode lamp string correspondingly; when the consumed current is less than or equal to a first current, the light emitting diode driving apparatus is configured to store and define the predetermined address code of the predetermined sequence testing signal corresponding to the consumed current less than or equal to the first current as a failure address code;
wherein when the light emitting diode driving apparatus is in an extended sequence testing mode: the light emitting diode driving apparatus is configured to generate a plurality of extended sequence testing signals; each of the extended sequence testing signals comprises an extended address code; the extended address codes are different; the extended address codes and the predetermined address codes are different; the light emitting diode driving apparatus is configured to respectively send each of the extended sequence testing signals to the at least one light emitting diode lamp string, and the light emitting diode driving apparatus is configured to respectively detect the consumed current of the at least one light emitting diode lamp string correspondingly; when the consumed current is greater than or equal to a second current, the light emitting diode driving apparatus is configured to store and define the extended address code of the extended sequence testing signal corresponding to the consumed current greater than or equal to the second current as a replacement address code;
wherein the light emitting diode driving apparatus is configured to replace the failure address code with the replacement address code in the testing sequence.