Undervoltage detector patent application

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Undervoltage detector patent application

Postby matseng » Tue Feb 05, 2013 10:15 am

Are these guys for real? Many software patents is really ridiculous and stupid, but this Shenzhen based company that a few years ago filed a patent application for a under voltage detection design must either be too rich and can spend money on patent lawyers for something as simple as this or they just think that have made some discovery of a new very funky and special design.

http://www.faqs.org/patents/imgfull/20110025518_01

UnderVoltagePatentApplication.png
Can this be patented? Hahaha!
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Re: Undervoltage detector patent application

Postby Alex555 » Tue Feb 05, 2013 10:38 pm

I hate it when people patent really simple circuits. It's just one of those things that bug me.
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Re: Undervoltage detector patent application

Postby arakis » Thu Feb 07, 2013 3:16 am

can someone explain how this circuit even works, cause in my mind it shouldn't.

I get that when the voltage is over the Zenere Level the transistor will holt the SCR gate low, and when the voltage drops the transistor will switch on the SCR... But here is the question, how do you get to that point... If you apply voltage from 0 that SCR will at some point be triggered, and it won't shutoff when the transistor pulls the gate low...
best regards FIlip.
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Re: Undervoltage detector patent application

Postby exerion » Thu Feb 07, 2013 2:55 pm

Well... software patents are even more stupid... like this one:

http://www.faqs.org/patents/imgfull/20130036183_01

Therefore I wouldn't call it software because it's more like an abstract design that other thing... anyway it sucks.

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Re: Undervoltage detector patent application

Postby vimark » Fri Feb 08, 2013 8:42 am

That undervoltage detector circuit would lock out (always on) when used on DC I think
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Re: Undervoltage detector patent application

Postby montyross » Wed Jul 24, 2013 6:24 am

Well the software that are really unique and creative should be patentable.Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent.
The debate about software patents revolves around a couple of things which can broadly be divided into three factors. To know about these factors Click here
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Re: Undervoltage detector patent application

Postby Sleepwalker3 » Sat Jul 27, 2013 5:43 am

Yes Arakis, it does look silly. The only way it would be practical as I see it, is if the indicator light had a pushbutton in series with it, in order to reset it each time you powered up, but there is no 'reset' button in the circuit.
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