TOKYO (AFP) -- Robots were once an emblem of Sony's technological prowess. But now the electronics giant is putting its robodog to sleep and firing its "ambassador" humanoid in a bid to return to financial health.

Sony, which has been struggling in the face of stiff competition at home and abroad, announced it would stop making entertainment robots just as it reported record profit for the December quarter in a sign of a possible turnaround.

A day after saying the Walkman, the iconic gadget launched in 1979, will no longer be made in Japan in production shifts to China and Malaysia, Sony said Thursday it will stop producing the Aibo robodog at the end of March.

The Sony group has sold 150,000 of the beagle-looking high-tech pets since its debut in 1999. The latest line costs roughly 1,700 dollars a dog. Sony will also stop developing its two-legged, 60-centimeter (two-foot)-tall "ambassador" robot, which was first unveiled in 2000 and was rechristened in October 2003 as QRIO after the phrase "quest for curiosity."

QRIO, which the company has described as the "Sony Dream Robot" to promote the brand, is Japan's highest-profile humanoid along with Honda Motor's walking and talking ASIMO although neither is for consumer sales.

Sony said it was refocusing and would use the artificial intelligence technology gained from the robots in its core business.

The robots were "a brand of Sony, a poster product appealing to consumers," said Mitsuhiro Osawa, analyst at Mizuho Investors Securities.

"We may miss them, as they have made consumers sense the cutting edge of technology which cannot be seen in daily-use household appliances," he said. "The stock market is feeling differently, though. Investors are convinced that (Sony) is serious enough to push ahead with restructuring."

Sony's surprisingly strong results heartened investors last week, helping the key Nikkei-225 index of the Tokyo Stock Exchange post its biggest gain in nearly four years. Sony shares jumped 14.2 percent to 5,800.

Last September, Howard Stringer, a Welsh-born former television journalist who is Sony's first foreign boss in its six-decade history, announced a major overhaul of the business including 10,000 job cuts by March 2008.

Sony said last week its restructuring program was on schedule, confirming that it will have cut 4,500 employees and closed down seven plants by the end of March out of a plan to sell or close 11 plants by 2008.

Howard's predecessor Nobuyuki Idei had mused about networking personal computers, television and game consoles in future homes.

"There are moves to turn around from that path towards something like Matsushita," Osawa said, pointing to rival Matsushita Electric Industrial, the maker of the Panasonic brand reputed for a no-nonsense way of business.

"They are returning to a realistic approach," he said.