Sony, which owns the unit with Michael Jackson's estate, recently triggered a clause in its contract that allows one partner to buy out the other, the Wall Street Journal reported, citing people familiar with the matter.
People in the music industry estimate Sony/ATV's value around $2 billion (roughly Rs. 13,020 crores), the Journal said, adding that Sony hasn't put a price tag on its share yet.
The Journal reported in December that Sony was considering a sale of the unit, which owns the rights to most of the Beatles' songs.
Sony/ATV also owns the rights to music artistes such as Taylor Swift, Lady Gaga, Queen and Kanye West.
Michael Jackson and Sony formed their joint venture in 1995.
Jackson had bought ATV a decade earlier from Australian businessman Robert Holmes a Court, outbidding Beatles singer Paul McCartney.
A Sony spokesman declined to comment.
Sony Corp Chief Executive Kazuo Hirai said on Wednesday the company would consider options for its smartphone unit if it failed to turn a profit in the next business year.
But he told a group of reporters that if the unit, which makes Xperia-branded handsets, was profitable as planned in the year starting next April, Sony would continue with the business.
The company in July lowered its forecast for its mobile communications unit to an operating loss of JPY 60 billion in the current fiscal year from an earlier estimate of a JPY 39 billion loss.
Edited by Gadgets 360 staff from original story by Reuters
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