IR Remote controller working

[hpb]

Hi all,

Can anybody tell me, how/why any system (TV, VCR...) responds to a particular remote and not to all remotes?

 

[hpb]

Hi all,

Can anybody tell me, how/why any system (TV, VCR...) responds to a particular remote and not to all remotes?

My main intention is to get the answer for 1 problem. That is, when there are multiple systems in front of a single remote, how can I operate only one system? (The remote is compatible for all the systems.)
:!::???::thinker:

 

[chuckey]

The remote control issues its commands as a series of pulses modulated on to a carrier frequency. Different systems use different carrier frequencies and coding systems. My Modern Panasonic flat screen TV responds to the remote control from my 20 year old VHS tape recorder.
Frank

 

[hpb]

Hi chuckiey,
Thanks for the good information.

My main intention is to get the answer for 1 problem. That is, when there are multiple systems in front of a single remote, how can I operate only one system? (The remote is compatible for all the systems.)
:!::???::thinker:

 

[hpb]

Is it possible to change/modify the vendor set system address of a remote?

 

[hpb]

Is it possible to change/modify the vendor set system address of a remote?

I have some cusom requirement..
We have "n" number of application boards which will be controlled by an IR remote..
Due to the interference all the systems are responding to all the remotes..
I want to to know whether universal remotes could help us out..
Using universal remotes we are planning to control the application boards depending on the universal remote`s device code.