Set Top Converter(1995)
Based on idea provided by Mr Zaidi.
Developed in 1995 when all color TVs had 12 channels and Cable TV offered 30 channels. Design was done using SAMSUNG cable tv tuner which converted any cable tv channel to Channel E3 for TV.
I designed over six variation on Motorola and Zilog micro controllers and almost all manufacturers used my design. Later on this design was published in EFY June 1997 issue with complete details and software was available via CD or request to EFY.
Cable TV db meter(1997)
Based on idea provided by Mr Nanak Singh of Nanak Antenna
based on success of Set Top Converter, I designed db meter. There were three variations, one with analog meter and numeric display, another with LCD alphanumeric display and another with built in FM and reverse modulator option
RF Demodulator (1999 - still selling)
Based on idea provided by Mr Gurbachan of Himsons,Mumbai
Variation of set top converter. No remote, professional model in 19 inch cabinet. Three models designed - One with led based numeric display, another with LCD and now third with universal front end tuner with built in demodulator.
CCTV Switchers(2001-still selling)
Based on idea provided by Mr Raman Dhawan
Various models developed in last seven years. Most of sales came from M/S Sparah Securitech (Now M/S Samriddhi Automation Pvt Ltd)
Models from Single standalone, Split type, Matrix type, Multiple master etc..
First patent filed on Oct 2008 for multifuction CCTV
Elevator Controllers (2000-still selling)
Based on idea provide by Mr Gurinder of Apollo Elevators
Majority of sales came from M/S UT Limited till 2006.
Various parts like RS485 based Floor Position Indicator, Voice announcement interface, Duplex controller developed.
Traffic Controller(2006-still selling)
Based on orders from Mr Y.K. Agarwal of M/S Luminelle Solar Technology Limited
First proto type used Elevator Controller boards. Later on dedicated hardware based on RS485 interface developed.
Beverage Vending machine(2002-still selling)
Based on order from Mr Sahul Khurana of A.K. Systems
Various models developed. Complete construction article published in EFY in Oct 2006.
RGB Led controllers(2003-still selling)
Based on order from Mr Atul Agarwal of Reiz Electrocontrols Pvt Ltd
Various models developed for standalone, DMX512 interface, GVC interface etc..