The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2018
Filed:
Aug. 25, 2016
Siemens Schweiz Ag, Zurich, CH;
Jian Tan, Beijing, CN;
SIEMENS SCHWEIZ AG, Zurich, CH;
Abstract
A notification appliance in a fire fighting system may include at least one LED, a drive circuit, and a control circuit. The control circuit may be configured to output at least one flash control signal to the drive circuit in response to a candela setting, the flash control signal indicating a pulse waveform characteristic and a current amplitude of a drive current that is output by the drive circuit and can flow through the at least one LED. The candela setting may be selected from a plurality of optional candela settings, and the pulse waveform characteristic and the current amplitude indicated may be selected such that each light emission of the at least one LED can substantially minimize electric energy required for the candela setting.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile