H1 used for 1 year now traveling on h4

Hi,

I was in US for 1 year in 2012 - 13. I went back to india in 2013. I still have h1 petition valid till April 2014. My company is not sending me to US now. I am getting married in jan and planning to come to US on H4 visa.

after I come back to USA can I get my h1 activated again by joining some consultancy? Do I have to do that before April 2014 or can this be done after that too? Please help me understand,

thanks

Mona.